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Texas Instruments Incorporated patents


Recent patent applications related to Texas Instruments Incorporated. Texas Instruments Incorporated is listed as an Agent/Assignee. Note: Texas Instruments Incorporated may have other listings under different names/spellings. We're not affiliated with Texas Instruments Incorporated, we're just tracking patents.

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 new patent  Methods and apparatus for shallow gradient artifact reduction in image display systems

In described examples, a method includes: receiving an array of image data pixels for display by a spatial light modulator; dividing the array of image data pixels into a plurality of blocks. For the blocks of the plurality of blocks, the method includes: computing a mean value for pixels in the block; computing a variance for pixels in the block; and, in response to the mean value and the variance, retrieving an indicator of a likelihood of a visible artifact for the block; and in response to the retrieved indicator, outputting a signal to selectively increase or reduce a load time of the spatial light modulator for displaying the array of image data pixels.. ... Texas Instruments Incorporated

 new patent  Input vector set for position detection of pm motors

A method of determining angular position (0) of a rotor of an n-phase permanent magnet motor (pmm). A processor having an associated stored angular position determination (apd) algorithm is programmed to implement the algorithm to cause an associated motor controller to execute steps including forcing one vector at a time a phase vector set of current or voltage vectors to stator terminals of windings for the n-phases a positive and negative magnitude vector, wherein the vector magnitude is sufficiently small to not move the rotor, and a time duration for the forcing current or voltage vectors is essentially constant. ... Texas Instruments Incorporated

 new patent  Llc resonant frequency auto detection

Generally speaking, a timing circuit helps determine diode conduction time of an llc converter. In some examples, the circuit includes an llc converter having a secondary side and a timing circuit, the timing circuit coupled to the llc converter on the secondary side. ... Texas Instruments Incorporated

 new patent  Tracking energy consumption using a boost-buck technique

The invention relates to an apparatus and method for tracking energy consumption. An energy tracking system comprises at least one switching element, at least one inductor and a control block to keep the output voltage at a pre-selected level. ... Texas Instruments Incorporated

 new patent  Circuits and methods to linearize conversion gain in a dc-dc converter

Described examples include dc-dc power conversion systems, apparatus and methods for linearizing a dc-dc circuit conversion gain, including a gain circuit providing an output signal according to a gain value and the difference between a first compensation signal and a threshold signal, and a switching circuit selectively operative when the first compensation signal exceeds the threshold signal to linearize the conversion gain by providing a second compensation signal for pulse width modulation of at least one dc-dc converter switch according to the threshold signal and the gain circuit output signal.. . ... Texas Instruments Incorporated

 new patent  Circuits, devices, methods and systems to secure power-up for battery operating devices even with low current chargers and to execute other performances

An electronic power control circuit includes a power conditioner circuit (120, 130) having a charging input line (116), a battery-related line (133) of the power conditioner circuit (120, 130), and a power voltage output line (137); and an anti-crash loop mechanism (170) coupled to the battery-related line (133) and to the power voltage output line (137) of the power conditioner circuit (120, 130), the anti-crash loop mechanism (170) having a control output line (172, pwgood) to be selectively active and inactive in response to voltage levels over time on the battery-related line (133) and on the power voltage output line (137) of the power conditioner circuit (120, 130).. . ... Texas Instruments Incorporated

 new patent  P-channel demos device

A p-channel drain extended metal oxide semiconductor (depmos) device includes a doped surface layer at least one nwell finger defining an nwell length and width direction within the doped surface layer. A first pwell is on one side of the nwell finger including a p+ source and a second pwell is on an opposite side of the nwell finger including a p+ drain. ... Texas Instruments Incorporated

 new patent  Integrated circuit wave device and method

In described examples of forming an integrated circuit wave device, a method includes: (a) affixing an integrated circuit die relative to a substrate; (b) creating a form relative to the integrated circuit die and the substrate; and (c) forming a wave shaping member having a shape conforming at least in part to a shape of the form.. . ... Texas Instruments Incorporated

 new patent  Methods and apparatus for matrix processing in a convolutional neural network

Described examples include an integrated circuit including a vector multiply unit including a plurality of multiply/accumulate nodes, in which the vector multiply unit is operable to provide an output from the multiply/accumulate nodes, a first data feeder operable to provide first data to the vector multiply unit in vector format, and a second data feeder operable to provide second data to the vector multiply unit in vector format.. . ... Texas Instruments Incorporated

 new patent  Performing distance-based feature suppression

Methods, apparatus, systems to perform distance-based feature suppression of features of an image in a feature list of the image are disclosed. A method includes accessing the feature list, comparing a selected feature in the feature list with features located within a first distance of the selected feature, when features located within the first distance are non-suppressed or valid and are stronger than different non-suppressed features, marking the features as valid and marking other non-suppressed features as suppressed. ... Texas Instruments Incorporated

 new patent  Method and circuitry for compensating low dropout regulators

Low dropout regulators (ldos) are disclosed herein. An example of an ldo includes an error amplifier having a first input and a second input, wherein the first input is for coupling to an output of the ldo and the second input for coupling to a reference voltage. ... Texas Instruments Incorporated

 new patent  Light modulator image display projector architectures

In described examples, a first tir or rtir element is arranged to introduce at least red light to a first spatial light modulator for modulation thereof, and a second tir or rtir element is arranged to introduce at least green light to a second spatial light modulator for modulation thereof. At least one of the first and second tir or rtir elements is arranged to introduce blue light to at least one of the first and second spatial light modulators, respectively, for modulation thereof: time-sequentially apart from the first spatial light modulator's modulation of the introduced red light, to an extent the blue light is so introduced to the first spatial light modulator; and time-sequentially apart from the second spatial light modulator's modulation of the introduced green light, to an extent the blue light is so introduced to the second spatial light modulator.. ... Texas Instruments Incorporated

Adaptive turn-off delay time compensation for led controller

A light emitting diode controller integrated circuit includes counter circuitry having inputs coupled to a clock signal input pin, a pulse width modulated signal input pin, and a sense input pin, and has a count output coupled to a gate drive signal output to an external power transistor. The power transistor is connected in series between a power lead, a sense resistor, and a light emitting diode. ... Texas Instruments Incorporated

Method and apparatus of hevc de-blocking filter

A method of de-blocking filtering a processed video is provided. The processed video includes a plurality of blocks and each block includes a plurality of sub-blocks. ... Texas Instruments Incorporated

07/05/18 / #20180192020

Efficient and flexible color processor

An image signal processor includes a first matrix processing circuit, a post processing circuit, a second matrix processing circuit, and a split visual and analytics circuit. The first matrix processing circuit is configured to receive a plurality of component images generated based on an image captured by an image sensor and generate a plurality of first matrix outputs based on the plurality of component images. ... Texas Instruments Incorporated

07/05/18 / #20180191954

Rear-stitched view panorama for rear-view visualization

A rear-stitched view panorama (rsvp) system is provided that includes at least one processor and a memory storing software instructions that, when executed by the least one processor, cause the rsvp system to compute a disparity map for a left center rear image and a right center rear image captured by a stereo camera mounted on a rear of a vehicle, transform a right rear image, a left rear image, a reference center rear image, and the disparity map to a virtual world view, the right rear image and left rear image captured by respective right and left cameras mounted on the vehicle, compute an optimal left seam and an optimal right seam based on the transformed disparity map, and stitch the transformed images based on respective optimal seams to generate a panorama.. . ... Texas Instruments Incorporated

07/05/18 / #20180191613

Packet processing match and action pipeline structure with dependency calculation removing false dependencies

An embodiment includes a plurality of tables in a hardware network for performing packet processing. Each table in the plurality of tables includes a table declaration. ... Texas Instruments Incorporated

07/05/18 / #20180191534

Equalizer boost setting

One example includes a system that is comprised of an equalizer, a counter, and a controller. The equalizer equalizes an incoming signal and provide an equalized output signal over a plurality of time intervals according to a given equalizer setting thereof. ... Texas Instruments Incorporated

07/05/18 / #20180191472

Bias removal in prbs based channel estimation

A system includes a pseudorandom binary sequence (prbs) generator configured to generate a first prbs and a second prbs and an exclusive-or logic configured to exclusive-or the first prbs and the second prbs to compute a third prbs. The system also includes an adder, a correlator and a corrector. ... Texas Instruments Incorporated

07/05/18 / #20180191383

Transformation based filter for interpolation or decimation

A digital filter for interpolation or decimation and a device incorporating the digital filter is disclosed. The digital filter includes a filter block, a first transformation circuit coupled to the filter block and an input stream coupled to provide input values to a component selected from the filter block and the first transformation circuit. ... Texas Instruments Incorporated

07/05/18 / #20180191366

Frequency management for interference reduction of a/d converters powered by switching power converters

In at least some embodiments, a system comprises a frequency generator configured to generate a second clock signal having a second frequency using a first clock signal having a first frequency. The second frequency is offset from the first frequency and each of a plurality of harmonic frequencies of the second frequency is offset from a harmonic frequency of the first frequency. ... Texas Instruments Incorporated

07/05/18 / #20180191362

Pattern based estimation of errors in adc

The disclosure provides an analog to digital converter (adc). The adc includes a flash adc. ... Texas Instruments Incorporated

07/05/18 / #20180191361

Analog-to-digital converter with an increased resolution first stage

One example includes a pipelined analog-to-digital converter device. The pipelined analog-to-digital converter device includes a capacitive digital-to-analog converter, a first analog-to-digital converter, and a second analog-to-digital converter. ... Texas Instruments Incorporated

07/05/18 / #20180191355

Counter-based sysref implementation

A system (and associated method) includes an input flip-flop, a counter, and a clock tree. The input flip-flop includes a clock input terminal configured to be coupled to a device clock, or a clock generated from a phase-locked loop, and a data input terminal configured to be coupled to a first reference signal. ... Texas Instruments Incorporated

07/05/18 / #20180191343

Adaptive voltage scaling system for out of context functional safety soc

The optimal operating voltage of a complex soc may be influenced by process variations. The operating voltages may be dynamically adjusted for optimal performance. ... Texas Instruments Incorporated

07/05/18 / #20180191334

Circuit to mitigate signal degradation in an isolation circuit

A circuit includes an isolator that provides isolated signal communications between a host-side circuit and a converter-side circuit. The isolated signal communications include a conversion start signal generated in the host-side circuit passing through the isolator to become an isolated conversion start signal in the converter-side circuit. ... Texas Instruments Incorporated

07/05/18 / #20180191331

Band pass filter utilizing parallel resonance of baw resonator

A circuit includes an amplifier having an input that receives an alternating current (ac) waveform and an output that is coupled to a power source via a bias resistor. A bulk acoustic wave (baw) resonator is coupled in parallel to the bias resistor via the power source and the amplifier output. ... Texas Instruments Incorporated

07/05/18 / #20180191321

Temperature-compensated equalizer

An equalizer, in at least some embodiments, comprises an amplifier configured to produce an amplified voltage signal that is a function of an ambient temperature affecting the equalizer. The equalizer also includes a linear equalizer stage coupled to the amplifier and comprising a transistor having a resistance controlled by the amplified voltage signal. ... Texas Instruments Incorporated

07/05/18 / #20180191319

Differential input stage with wide input signal range and stable transconductance

At least some embodiments are directed to a system that comprises a differential input transistor pair (ditp) comprising first and second transistors, a first feedback loop coupled to the first transistor, and a second feedback loop coupled to the second transistor. When a differential voltage applied to the input stage is within a first range, the first and second feedback loops control a tail current supplied to the ditp, where the tail current at least partially determines a transconductance of the ditp. ... Texas Instruments Incorporated

07/05/18 / #20180191315

Class-d amplifier with post filter feedback loop

A fixed frequency class-d audio amplifier includes the l-c output filter in a high order feedback loop. An audio amplifier integrated circuit includes an output driver, an output terminal, a first input terminal, a second order filter, and a summing amplifier. ... Texas Instruments Incorporated

07/05/18 / #20180191310

Total harmonic distortion (thd) controlled clip detector and automatic gain limiter (agl)

The disclosed embodiments include an audio amplifier system configured to provide a total harmonic distortion (thd) controlled clip detector and an automatic gain limiter (agl) solution for a closed-loop amplifier. The audio amplifier system is capable of maintaining high power output without hard distortion (i.e., hard clipping) for providing better acoustics, while preventing damage to the system.. ... Texas Instruments Incorporated

07/05/18 / #20180191306

Op-amp ic chip

An integrated circuit (ic) chip can include an operational amplifier with adjustable operational parameters. The ic chip can also include a trimming module configured to measure an output voltage of the operational amplifier in response to at least one of detecting that the operational amplifier has a positive supply voltage set to a level greater than a predetermined level and detecting a given common mode voltage at inverting and non-inverting inputs of the operational amplifier. ... Texas Instruments Incorporated

07/05/18 / #20180191271

Detecting resonance frequency in llc switching converters from primary side

Embodiments includes systems, methods, and apparatuses for determining a resonant frequency of an llc converter via a primary side of the llc converter. In one embodiment, a circuit comprises an llc converter and a resonant frequency determination unit, the resonant frequency determination unit configured to monitor electrical current on the primary side of the llc converter, isolate a portion of the electrical current, determine, based on the portion of the electrical current, a crossing point, and determine, based on the crossing point, a resonant frequency of the llc converter.. ... Texas Instruments Incorporated

07/05/18 / #20180191256

Primary side burst mode controller for llc converter

Embodiments include systems, methods, and apparatuses for controlling off-time during a burst mode in an llc converter. In one embodiment, a circuit comprises an llc converter having a primary side and a burst mode controller, the burst mode controller configured to monitor, on the primary side of the llc converter, electrical current, and in response to a determination that the electrical current is below a first threshold, increase an off-time for switches in the llc converter and in response to a determination that the electrical current is above a second threshold that is higher than the first threshold, decrease the off-time for the switches in the llc converter.. ... Texas Instruments Incorporated

07/05/18 / #20180191253

Adaptive on-time algorithm for llc converters

A circuit for use in an llc converter to control diode conduction time includes a secondary side controller, the secondary side controller configured to monitor voltage, measure a diode conduction time for the llc converter, in response to determining that the diode conduction time is greater that a target time, increase the on-time for the first switch, and in response to determining that the diode conduction time is less than a target time, decrease the on-time for the first switch.. . ... Texas Instruments Incorporated

07/05/18 / #20180191243

Multi-stage charge pump

In described examples, a multi-stage charge pump includes first, second and third charge pump stages connected in series. Each of the first, second and third charge pump stages includes a charge pump circuit of a first type that increases an input signal of a respective charge pump circuit by up to a given amount. ... Texas Instruments Incorporated

07/05/18 / #20180191242

Dynamic threshold selection for transient detection in a coverter

A dynamic threshold determining circuit changes the threshold voltage used to determine when to inject additional energy to increase a power converter's output voltage in response to a low voltage transient for the converter. By being able to change the threshold, finer control of the energy input for correcting transients is possible. ... Texas Instruments Incorporated

07/05/18 / #20180191235

Integrated transformer

Apparatus providing an integrated transformer are disclosed. An example apparatus includes a power conversion system including a switching circuit including a first primary side transistor coupled between a first input node and a switching node, and a second primary side transistor coupled between the switching node and a second input node, a series circuit including a transformer primary winding, a capacitor, and an inductor coupled in series between the switching node and the second input node, a transformer secondary circuit including a first transformer secondary winding and a second transformer secondary winding, the first and the second transformer secondary windings electrically between a first converter output and a second converter output, the transformer primary winding and the transformer secondary windings wound around at least a portion of a corresponding one of a transformer core in an infinity winding arrangement.. ... Texas Instruments Incorporated

07/05/18 / #20180190855

Optical isolation systems and circuits and photon detectors with extended lateral p-n junctions

Disclosed examples include lateral photovoltaic sensors and systems with one or more semiconductor structures individually including a lateral sensor face to receive photons of a given wavelength, and an extended lateral junction region having an effective junction distance greater than 5 times an absorption depth for the semiconductor structure that corresponds to the given wavelength, to facilitate high current transfer ratios for use in low-noise, high-efficiency power supply applications as well as optically isolated data transfer or photon detector applications.. . ... Texas Instruments Incorporated

07/05/18 / #20180190814

Laterally diffused metal oxide semiconductor with gate poly contact within source window

An integrated circuit includes a power transistor having at least one transistor finger that lies within a semiconductor material substrate. Each transistor finger has a source region stripe and a substantially parallel drain region stripe. ... Texas Instruments Incorporated

07/05/18 / #20180190813

Semiconductor device with extended electrically-safe operating area

In at least some embodiments, a semiconductor device comprises a source region is formed within a well. The source region comprises a first dopant type, and the well comprises a second dopant type opposite the first dopant type. ... Texas Instruments Incorporated

07/05/18 / #20180190778

Transistor with source field plates under gate runner layers

A transistor device includes a field plate extending from a source contact layer and defining an opening above a gate metal layer. Coplanar with the source contact layer, the field plate is positioned close to the channel region, which helps reduce its parasitic capacitance. ... Texas Instruments Incorporated

07/05/18 / #20180190777

Transistor with source field plates and non-overlapping gate runner layers

A transistor device includes a field plate that extends from a source runner layer and/or a source contact layer. The field plate can be coplanar with and/or below a gate runner layer. ... Texas Instruments Incorporated

07/05/18 / #20180190753

Semiconductor resistor structure and method for making

Disclosed examples include a resistor comprising a semiconductor structure having a length dimension with first and second ends spaced from one another and an intermediate region between the first and second ends, first and second metal-semiconductor compound structures on the semiconductor structure proximate the first and second ends of the semiconductor structure, the first and second metal-semiconductor compound structures being spaced apart from each other along the length dimension of the semiconductor structure, and at least one intermediate metal-semiconductor compound structure on a portion of the intermediate region of the semiconductor structure between the first and second ends, the intermediate metal-semiconductor compound structure being spaced apart from the first and second metal-semiconductor compound structures on the semiconductor structure.. . ... Texas Instruments Incorporated

07/05/18 / #20180190628

Isolator integrated circuits with package structure cavity and fabrication methods

Disclosed examples include integrated circuits with a leadframe structure, a first circuit structure including a light source configured to generate a light signal along an optical path, a second circuit structure including a light sensor facing the optical path to receive the light signal, and a molded package structure enclosing portions of the leadframe structure, the molded package structure having a cavity defined by an interior surface of the molded package structure, the optical path extending in the cavity between the first and second circuit structures.. . ... Texas Instruments Incorporated

07/05/18 / #20180190608

Packaged semiconductor device with a reflow wall

A packaged semiconductor device includes a lead frame and a semiconductor device. A solder joint is coupled between the lead frame and a terminal on the semiconductor device. ... Texas Instruments Incorporated

07/05/18 / #20180190606

Semiconductor devices having metal posts for stress relief at flatness discontinuities

A semiconductor device includes a first body having a first coefficient of thermal expansion (cte) and a first surface, a third body having a third cte and a third surface facing the first surface, and a fourth surface at an angle with respect to the third surface defining an edge of the third body, and a second body having a second cte higher than the first and the third cte, the second body contacting the first and the third surfaces. A post having a fourth cte lower than the second cte, transects the second body and contacts the edge.. ... Texas Instruments Incorporated

07/05/18 / #20180190577

Packaged semiconductor device with a particle roughened surface

A packaged semiconductor device with a particle roughened surface on a portion of the lead frame that improves adhesion between the molding compound and the lead frame. A packaged semiconductor device with a particle roughened surface on a portion of the lead frame that improves adhesion between the molding compound and the lead frame and with a reflow wall that surrounds a portion of the solder joint that couples the semiconductor device to the lead frame. ... Texas Instruments Incorporated

07/05/18 / #20180190573

Leadframe inductor

One example includes a device that is comprised of a die, a leadframe, and an electrically conductive material. The die includes a circuit therein. ... Texas Instruments Incorporated

07/05/18 / #20180190556

Methods and apparatus for spark gap devices within integrated circuits

In a described example, an apparatus includes: an integrated circuit die having multiple terminals; a leadframe having leads for external connections, at least some of the leads electrically coupled to at least one of the multiple terminals of the integrated circuit die; a first electrode having a first end portion; a second electrode having a second end portion positioned proximal to and spaced apart from the first end portion of the first electrode, the first end portion and the second end portion spaced by a spark gap; encapsulation material surrounding the integrated circuit die to form a packaged integrated circuit having a cavity surrounding the first end portion, the second end portion, and the spark gap so that the first end portion of the first electrode, the second end portion of the second electrode and the spark gap are spaced from the encapsulation material.. . ... Texas Instruments Incorporated

07/05/18 / #20180190550

Method and apparatus to model and monitor time dependent dielectric breakdown in multi-field plate gallium nitride devices

A first set of test structures for a gallium nitride (gan) transistor that includes n field plates is disclosed, where n is an integer and x is an integer between 0 and n inclusive. A test structure tsx of the first set of test structures includes a gan substrate, a dielectric material overlying the gan substrate, a respective source contact abutting the gan substrate and a respective drain contact abutting the gan substrate. ... Texas Instruments Incorporated

07/05/18 / #20180190509

Integrated circuit package mold assembly

An integrated circuit (“ic”) package mold includes an upper mold platen that defines an upper mold cavity for receiving an upper substrate having a die attach side with a plurality of dies mounted thereon and a non-attach side with no dies mounted thereon. The die attach side of the upper substrate faces upwardly. ... Texas Instruments Incorporated

07/05/18 / #20180190343

Apparatus with low power sram retention mode

A memory array and an integrated circuit are disclosed. The memory array includes first and second banks of memory elements and five switches. ... Texas Instruments Incorporated

07/05/18 / #20180189184

Streaming engine with separately selectable element and group duplication

A streaming engine employed in a digital data processor specifies a fixed read only data stream defined by plural nested loops. An address generator produces address of data elements. ... Texas Instruments Incorporated

07/05/18 / #20180189156

Reset isolation for an embedded safety island in a system on a chip

The reset isolation mechanism describes an embedded safety island inside a system on a chip which reduces the overall system cost while achieving functional safety. The safety island ensures an orderly shutdown of all or part of the rest of the system on a chip without the possibility of a safety island hang due to incomplete transactions at the time of the reset.. ... Texas Instruments Incorporated

07/05/18 / #20180189133

Error-correcting code memory

In the described examples, a memory controller includes a read-modify-write logic module that receives a partial write data request for partial write data in error-correcting code (ecc) memory and combines the partial write data in the partial write data request with read data provided from the ecc memory to form combined data prior to correcting the read data. The memory controller also includes a write control module that controls the writing of the combined data to the ecc memory.. ... Texas Instruments Incorporated

07/05/18 / #20180189105

Scheduling of concurrent block based data processing tasks on a hardware thread scheduler

A data processing device is provided that includes a plurality of hardware data processing nodes, wherein each hardware data processing node is configured to execute a task, and a hardware thread scheduler coupled to the plurality of hardware data processing nodes, the hardware thread scheduler configurable to concurrently execute a first thread of tasks and a second thread of tasks on the plurality of hardware data processing nodes.. . ... Texas Instruments Incorporated

07/05/18 / #20180189102

Scheduling of external block based data processing tasks on a hardware thread scheduler

A data processing device is provided that includes a plurality of hardware data processing nodes, wherein each hardware data processing node performs a task, and a hardware thread scheduler including a plurality of hardware task schedulers configured to control execution of a respective task on a respective hardware data processing node of the plurality of hardware data processing nodes, and a proxy hardware task scheduler coupled to a data processing node external to the data processing device, wherein the proxy hardware task scheduler is configured to control execution of a task by the external data processing device, wherein the hardware thread scheduler is configurable to execute a thread of tasks, the tasks including the task controlled by the proxy hardware task scheduler and a first task controlled by a first hardware task scheduler of the plurality of hardware task schedulers.. . ... Texas Instruments Incorporated

07/05/18 / #20180188987

Random number generation in ferroelectric random access memory (fram)

Disclosed embodiments relate to generating random numbers using two transistor, two capacitor (2t-2c) ferroelectric memory cells. In accordance with one disclosed embodiment, an n-bit random number can be generated by writing to a uniform data pattern to a set of n 2t-2c ferroelectric memory cells in a 1t-1c mode so that all ferroelectric capacitors of the n 2t-2c cells have a polarization state corresponding to the same data value (e.g., all 0's or all 1's). ... Texas Instruments Incorporated

07/05/18 / #20180188888

Interference reduction circuit for touch system

A circuit includes a receiver that includes an input stage to receive a touch signal from a touch system. A noise reduction circuit that samples the touch signal to detect a noise signal in the touch signal. ... Texas Instruments Incorporated

07/05/18 / #20180188844

Multiphase signaling for scan time reduction for a touch system

A system includes a transmitter to transmit excitation signals. At least one of the excitation signals is transmitted to at least one row or column of a touch system and at least one other of the signals is concurrently transmitted to at least one other row or column of the touch system. ... Texas Instruments Incorporated

07/05/18 / #20180188526

Ultrasound lens structure cleaner architecture and method using standing and traveling waves

A lens structure system with a lens structure and a multi-segmented transducer coupled to the lens structure. Each segment in the plurality of segments has a first conductor and a second conductor, wherein the first conductor and the second conductor are electrically coupled to the segment. ... Texas Instruments Incorporated

07/05/18 / #20180188327

Method and circuitry for detecting faults in field oriented controlled permanent magnet synchronous machines

A system includes a proportional-integrated-derivative (pid) regulator. The system also includes a fault detection unit. ... Texas Instruments Incorporated

07/05/18 / #20180188313

Systems and methods for dynamic rdson measurement

In at least some embodiments, a system comprises a socket gate terminal configured to receive a first voltage to activate and inactivate a device under test (dut) coupled to the socket gate terminal. The system also comprises a socket source terminal configured to provide a reference voltage to the dut. ... Texas Instruments Incorporated

07/05/18 / #20180188297

Devices and methods for detecting usb devices attached to a usb charging port

Methods and devices for detecting usb devices attached to a usb charging port including a usb port having a first data line d+, a second data line d−, and a power line are disclosed. A usb device is attached to the usb port; applying power to the usb device by the power line; applying a first voltage to the line d+ at the usb port by a first impedance; applying a second voltage to the line d− at the usb port by a second impedance. ... Texas Instruments Incorporated

07/05/18 / #20180188293

Magnetic field-based current measurement

One example includes a current measurement system. The system includes at least two magnetic field sensors positioned proximal to and in a predetermined arrangement with respect to a current conductor, each of the magnetic field sensors being configured to measure magnetic field associated with a current flowing in the current conductor and provide respective magnetic field measurements. ... Texas Instruments Incorporated

07/05/18 / #20180186629

Through-substrate conductor support

In described examples, a first device on a first surface of a substrate is coupled to a structure arranged on a second surface of the substrate. In at least one example, a first conductor arranged on the first surface is coupled to circuitry of the first device. ... Texas Instruments Incorporated

07/05/18 / #20180186625

Dielectric cladding of microelectromechanical systems (mems) elements for improved reliability

In described examples, a method of forming a microelectromechanical device comprises: forming a first metallic layer comprising a conducting layer on a substrate; forming a first dielectric layer on the first metallic layer, wherein the first dielectric layer comprises one or more individual dielectric layers; forming a sacrificial layer on the first dielectric layer; forming a second dielectric layer on the sacrificial layer; forming a second metallic layer on the second dielectric layer; and removing the sacrificial layer to form a spacing between the second dielectric layer and the first dielectric layer. Removing the sacrificial layer enables movement of the second dielectric layer relative to the first dielectric layer in at least one direction.. ... Texas Instruments Incorporated

07/05/18 / #20180186006

Impedance signature analyzer to control automated actions

A system includes a controller to provide at least one control output to an automated system in response to a control command received at a control input of the controller. The control output controls the operation of the automated system based on the control command. ... Texas Instruments Incorporated

06/28/18 / #20180184130

Delayed duplicate i-picture for video coding

A method is provided that includes receiving pictures of a video sequence in a video encoder, and encoding the pictures to generate a compressed video bit stream that is transmitted to a video decoder in real-time, wherein encoding the pictures includes selecting a picture to be encoded as a delayed duplicate intra-predicted picture (ddi), wherein the picture would otherwise be encoded as an inter-predicted picture (p-picture), encoding the picture as an intra-predicted picture (i-picture) to generate the ddi, wherein the i-picture is reconstructed and stored for use as a reference picture for a decoder refresh picture, transmitting the ddi to the video decoder in non-real time, selecting a subsequent picture to be encoded as the decoder refresh picture, and encoding the subsequent picture in the compressed bit stream as the decoder refresh picture, wherein the subsequent p-picture is encoded as a p-picture predicted using the reference picture.. . ... Texas Instruments Incorporated

06/28/18 / #20180184125

Optimized edge order for de-blocking filter

A de-blocking filter includes a reconstructed memory that is configured to store reconstructed pixels corresponding to a current macroblock of a video image to be filtered. The current macroblock includes a set of sub-blocks, each sub-block having horizontal edges and vertical edges. ... Texas Instruments Incorporated

06/28/18 / #20180184078

Calibration of a surround view camera system

A method for automatic generation of calibration parameters for a surround view (sv) camera system is provided that includes capturing a video stream from each camera comprised in the sv camera system, wherein each video stream captures two calibration charts in a field of view of the camera generating the video stream; displaying the video streams in a calibration screen on a display device coupled to the sv camera system, wherein a bounding box is overlaid on each calibration chart, detecting feature points of the calibration charts, displaying the video streams in the calibration screen with the bounding box overlaid on each calibration chart and detected features points overlaid on respective calibration charts, computing calibration parameters based on the feature points and platform dependent parameters comprising data regarding size and placement of the calibration charts, and storing the calibration parameters in the sv camera system.. . ... Texas Instruments Incorporated

06/28/18 / #20180183636

Methods and apparatus for efficient low-if receivers

Described examples include a method for operating a receiver including receiving an output of an in-phase if path; receiving an output of a quadrature if path; measuring a blocker power on a plurality of if channels on at least one of the in-phase path and the quadrature path within a fraction of a symbol interval; selecting a selected one of the plurality of if channels having a low blocker power as an image channel; and providing a local oscillator output to the in-phase if path and quadrature if path operate corresponding to the image channel, such that a frequency of the local oscillator output is changed within a fraction of the symbol interval.. . ... Texas Instruments Incorporated

06/28/18 / #20180183475

Fast transient settling in a digital step attenuator

The disclosure provides an rf receiver. The rf receiver includes an input driver. ... Texas Instruments Incorporated

06/28/18 / #20180183437

Bootstrap diode circuits

In described examples, bootstrap diode circuits include a first diode having a first diode input coupled to a voltage supply and a first diode output. Described bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. ... Texas Instruments Incorporated

06/28/18 / #20180183434

On chip redundant system reset for out of context functional safety soc

A functional safety power on reset system requires implementing voltage detectors and supervisory functions in a complex soc. These features are implemented within the soc without external components. ... Texas Instruments Incorporated

06/28/18 / #20180183409

Switched capacitor based digital step attenuator

The disclosure provides an rf receiver. The rf receiver includes an input driver. ... Texas Instruments Incorporated

06/28/18 / #20180183340

Dynamic learning of voltage source capabilities

A system may include a power supply configurable to generate any of a plurality of output voltages on a power supply output node. The system also may include a voltage auto-detection power distribution (pd) controller coupled to the power supply. ... Texas Instruments Incorporated

06/28/18 / #20180183332

Multiphase converter with phase interleaving

A multi-phase power converter includes a plurality of power channels arranged in parallel to drive an output of the power converter, and a channel selection circuit. Each of the power channels includes a driver, a feedback control circuit coupled to an output of the driver, and a comparator coupled to the feedback control circuit. ... Texas Instruments Incorporated

06/28/18 / #20180183330

Methods and apparatus for full gate drive of multilevel dc-dc converter with full duty cycle operation

Methods and apparatus for bootstrap capacitor sharing in multilevel dc-dc converters are disclosed. In one example, a bootstrap capacitor voltage of the bootstrap capacitor can be alternately shared between respective control gates of a first high side primary switch and a central high side primary switch of the multilevel dc-dc converter at different times during a duty cycle of the multilevel dc-dc converter. ... Texas Instruments Incorporated

06/28/18 / #20180183266

Methods and apparatus for antenna signal limiter for radio frequency identification transponder

In described examples, an apparatus includes: at least one resonant circuit for receiving a radio frequency signal; a rectifier coupled to the resonant circuit to output a first rectified signal with a constant level portion and a portion matching a first portion of the radio frequency signal, and to output a second rectified signal having a constant level portion and a portion that matches a second portion of the radio frequency signal; a first limiter circuit to limit a voltage of the first rectified signal to a predetermined maximum voltage level; a second limiter circuit to limit the voltage of the second rectified signal to the predetermined maximum voltage level; a third limiter circuit to limit a voltage of the first rectified signal to a predetermined minimum voltage level; and a fourth limiter circuit to limit the voltage of the second rectified signal to the predetermined minimum voltage level.. . ... Texas Instruments Incorporated

06/28/18 / #20180182948

Piezo actuator driver with slew rate protection

A driver for a piezo actuator includes a transconductance amplifier to produce an output current, a slew rate-controlled amplifier, and a logic gate. The logic gate receives a first control signal to cause the transconductance amplifier to transition to a high impedance mode, receive a compare signal indicative of the amplitude of the output current produced by the transconductance amplifier being less than a threshold, and generate a second control signal to the transconductance amplifier responsive to the first control signal indicating the high impedance mode for the transconductance amplifier and the compare signal indicative of the output current being less than the threshold. ... Texas Instruments Incorporated

06/28/18 / #20180182755

Conductivity modulated drain extended mosfet

An integrated circuit is fabricated on a semiconductor substrate. An insulated gate bipolar transistor (igbt) is formed upon the semiconductor substrate in which the igbt has an anode terminal, a cathode terminal, and a gate terminal, and a drift region. ... Texas Instruments Incorporated

06/28/18 / #20180182749

Dynamically triggered electrostatic discharge cell

An electrostatic discharge (esd) protection circuit includes an active shunt transistor, a first pull-down transistor, and a second pull-down transistor. The active shunt transistor is coupled between a first i/o pad and a reference voltage. ... Texas Instruments Incorporated

06/28/18 / #20180182642

Qfn pin routing thru lead frame etching

A multi-level leadframe including three bonding levels and one exposed level. Each of the three bonding levels and the one exposed level is positioned in a different horizontal plane, with each bonding level providing a bonding site vertically positioned relative to the horizontal plane of the exposed level, with each bonding site coupled to a package lead at the exposed level. ... Texas Instruments Incorporated

06/28/18 / #20180182440

Integrated circuits, methods and interface circuitry to synchronize data transfer between high and low speed clock domains

Disclosed examples include interface circuits to transfer data between a first register in a fast clock domain and a second register in a slow clock domain, including a resettable synchronizer to provide a synchronized start signal synchronized to a slow clock signal to initiate a write from the first register to the second register according to a write request signal, a pulse generator circuit to provide a write enable pulse signal according to the synchronized start signal, a write control circuit to selectively connect an output of the first register to an input of the second register to write data from the first register to the second register according to the write enable pulse signal, and a dual flip-flop to provide a reset signal synchronized to a fast clock signal according to the write request signal to clear any prior pending write request and begin a new write operation.. . ... Texas Instruments Incorporated

06/28/18 / #20180181864

Sparsified training of convolutional neural networks

A method for generating a sparsified convolutional neural network (cnn) is provided that includes training the cnn to generate coefficient values of filters of convolution layers, and performing sparsified fine tuning on the convolution layers to generate the sparsified cnn, wherein the sparsified fine tuning causes selected nonzero coefficient values of the filters to be set to zero.. . ... Texas Instruments Incorporated

06/28/18 / #20180181857

Reduced complexity convolution for convolutional neural networks

A method for convolution in a convolutional neural network (cnn) is provided that includes accessing a coefficient value of a filter corresponding to an input feature map of a convolution layer of the cnn, and performing a block multiply accumulation operation on a block of data elements of the input feature map, the block of data elements corresponding to the coefficient value, wherein, for each data element of the block of data elements, a value of the data element is multiplied by the coefficient value and a result of the multiply is added to a corresponding data element in a corresponding output block of data elements comprised in an output feature map.. . ... Texas Instruments Incorporated

06/28/18 / #20180181816

Handling perspective magnification in optical flow proessing

A method of optical flow estimation is provided that includes identifying a candidate matching pixel in a reference image for a pixel in a query image, determining a scaled binary pixel descriptor for the pixel based on binary census transforms of neighborhood pixels corresponding to scaling ratios in a set of scaling ratios, determining a scaled binary pixel descriptor for the candidate matching pixel based on binary census transforms of neighborhood pixels corresponding to scaling ratios in the set of scaling ratios, and determining a matching cost of the candidate matching pixel based on the scaled binary pixel descriptors.. . ... Texas Instruments Incorporated

06/28/18 / #20180181180

Analog driver with built-in wave shaping

An amplifier includes a dynamic bias circuit and an amplification circuit coupled to the dynamic bias circuit. The dynamic bias circuit includes a plurality of transistors coupled to a plurality of resistors. ... Texas Instruments Incorporated

06/28/18 / #20180181179

On chip power on reset with integrated supervisory functions for a functional safety system

A functional safety por system requires implementing voltage detectors and supervisory functions in a complex soc. These features are implemented within the soc without external components. ... Texas Instruments Incorporated

06/28/18 / #20180181158

Startup current limiters

In some embodiments, a startup current limiter comprises a first comparator, a second comparator, on time circuitry coupled to an output of the second comparator, and a first logic structure coupled to the output of the second comparator and an output of the on time circuitry. In some embodiments, the startup current limiter further comprises sequencing logic coupled to an output of the first comparator, a latch coupled to an output of the first comparator at a set terminal of the latch and an output of the second comparator at a reset terminal of the latch, off time circuitry coupled to an output terminal of the latch, a second logic structure coupled to the latch and the off time circuitry, and a gate driver coupled to the second logic structure and an output of the sequencing logic.. ... Texas Instruments Incorporated

06/28/18 / #20180181151

Methods and apparatus for negative output voltage active clamping using a floating bandgap reference and temperature compensation

Methods, apparatus, systems and articles of manufacture for negative output voltage active clamping using a floating bandgap reference and temperature compensation are disclosed. An example load switch includes a floating bandgap reference circuit to generate a bandgap reference voltage. ... Texas Instruments Incorporated

06/28/18 / #20180181076

Methods and apparatus for magnetically compensated chip scale atomic clock

In described examples, an apparatus includes: a physics cell including: a laser source configured to emit light towards an atomic chamber containing an atomic gas; a photodetector configured to receive emissions from the atomic chamber; and a coil for generating a magnetic field in the atomic chamber; and an electronics circuit, including: a controller circuit coupled to the photodetector output and having control outputs to a digital to analog converter circuit; the digital to analog converter circuit having a coil current output to adjust the magnetic field, a modulation control output to control a modulation of the light, and having an output to control a voltage controlled oscillator; and a radio-frequency output circuit having a voltage controlled oscillator coupled to the output of the digital to analog converter circuit and outputting a radio frequency signal to the laser source in the physics cell.. . ... Texas Instruments Incorporated

06/28/18 / #20180180732

Phase-based ultrasonic ranging

One example includes an ultrasonic ranging system. The system includes an ultrasonic transducer configured to transmit an ultrasonic signal and to receive reflected ultrasonic signal paths having been reflected from a plurality of target objects during a ranging operation. ... Texas Instruments Incorporated

06/28/18 / #20180180676

Programmable test compression architecture input/output shift register coupled to sci/sco/pco

The disclosure describes novel methods and apparatuses for accessing test compression architectures (tca) in a device using either a parallel or serial access technique. The serial access technique may be controlled by a device tester or by a jtag controller. ... Texas Instruments Incorporated

06/28/18 / #20180180673

System and method for sharing a communications link between multiple communications protocols

A system and method for sharing a communications link between multiple protocols is described. A system includes a communications interface configured to exchange information with other systems using at least one of a plurality of protocols; a protocol select register that stores a value that selects a protocol from among the plurality of protocols to become an active protocol; and a state machine accessible to the communications interface, the state machine used to control the exchange of information through the communications interface according to the active protocol. ... Texas Instruments Incorporated

06/28/18 / #20180180668

Interposer based test program evaluation

One example includes a test system that includes a printed circuit board and a switching interposer board. The switching interposer board is comprised of a probe point, a first bus, a second bus, and a set of switches. ... Texas Instruments Incorporated

06/28/18 / #20180180661

High-side gate over-voltage stress testing

A field effect transistor (fet) engager, for example, includes electrically coupling a gate driver to a gate of a fet for testing the fet. The fet engager further includes providing a probe pad for test instrument measurement of the fet without test instrument capacitance impacting operation of the fet. ... Texas Instruments Incorporated

06/28/18 / #20180180652

Square-wave-based impedance analysis

A microcontroller-based system for measuring the impedance of a device under test (dut), responsive to a square wave stimulus, includes parallel stimulus signal paths, selectable by a switch, that can correspond to different stimulus frequency ranges. At least one of the paths includes an off-chip pll and integer divider circuit to modify the frequency of the stimulus. ... Texas Instruments Incorporated

06/28/18 / #20180180559

Multi-sampling in x-ray receiver for noise reduction

The disclosure provides a receiver with reduced noise. The receiver includes a photodiode that generates an input signal in response to received light pulses. ... Texas Instruments Incorporated

06/28/18 / #20180180450

Inductive touch input

A touch-scroll apparatus can provide touch-scroll input/functionality, such as for a mobile communication device (as an example application). The touch-scroll apparatus includes a multi-coil sensor assembly including multiple sense inductor coils (for example, three). ... Texas Instruments Incorporated

06/28/18 / #20180179054

Stress compensation for piezoelectric optical mems devices

An apparatus includes a lens material forming a lens. The apparatus also includes a piezoelectric capacitor over the lens material, where the piezoelectric capacitor is configured to change a shape of the lens material in response to a voltage across the piezoelectric capacitor to thereby change a focus of the lens. ... Texas Instruments Incorporated

06/21/18 / #20180176790

Method and apparatus for transmitting lte waveforms in shared spectrum by carrier sensing

A method of operating a long term evolution (lte) communication system on a shared frequency spectrum is disclosed. A user equipment (ue) is initialized on an lte frequency band. ... Texas Instruments Incorporated

06/21/18 / #20180176683

Direct current mode digital-to-analog converter to class d amplifier

A system includes a class d amplifier and a current steering digital-to-analog converter (dac) directly connected to the class d amplifier. The system also includes a common mode servo circuit coupled to a node interconnecting the current steering dac to the class d amplifier. ... Texas Instruments Incorporated

06/21/18 / #20180176052

Wireless networks utilizing multiple modulations

A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (phy) modulation, and at least one other node utilizes a second phy modulation different from the first phy modulation. The first node receives a phy frame transmitted by one of the plurality of nodes, and identifies a phy modulation type selected from the first phy modulation and the second phy modulation used in the phy frame or to be used in a subsequently to be received phy frame or frame portion. ... Texas Instruments Incorporated

06/21/18 / #20180176002

Timing correction in a communication system

One example includes a communication system. The system includes a data transmitter configured to generate a digital communication signal and a data receiver configured to receive the digital communication signal. ... Texas Instruments Incorporated

06/21/18 / #20180175880

Memory compression operable for non-contiguous write/read addresses

Disclosed embodiments include a system having a first memory, a second memory, circuitry that reads data quantities from the first memory along a first orientation, a compression engine that compresses each of the read data quantities to produce corresponding compressed data quantities, and circuitry that writes the compressed data quantities to the second memory along a second orientation which differs from the first orientation. The read data quantities have a first bit width and the compressed data quantities have a second bit width that is less than the first bit width.. ... Texas Instruments Incorporated

06/21/18 / #20180175873

Band specific interleaving mismatch compensation in rf adcs

An integrated circuit chip includes an interleaved analog-to-digital converter (adc) and an interleaving calibration circuit. The interleaved adc includes a plurality of adcs that are each configured to sample an analog signal. ... Texas Instruments Incorporated

06/21/18 / #20180175835

Regenerative differential detector

A regenerative differential receiver includes, for example, a transformer arranged to receive a modulated differential signal. A first detector is arranged to source a first output current for indicating a first power level in response to falling voltage of a first line of the modulated differential signal. ... Texas Instruments Incorporated

06/21/18 / #20180175812

Multi-level class d amplifier

An amplifier includes a first transistor coupled to a first voltage source node and a second transistor coupled to a second voltage source node. The first and second transistors also couple together at an intermediate node. ... Texas Instruments Incorporated

06/21/18 / #20180175728

Power converter controller

A power supply, comprising a controller comprising a first switch coupled between a first node and a second node, a first resistor coupled between the second node and a third node, a second resistor coupled between the first node and a fourth node, a capacitor coupled between the fourth node and a fifth node, an amplifier coupled at a first input to the fourth node, at a second input to the third node, and at an output to the fifth node, and a comparator coupled at a first input to the fifth node and at a second input to the third node.. . ... Texas Instruments Incorporated

06/21/18 / #20180175725

Control scheme for dc-dc power converters with ultra-fast dynamic response

Methods and apparatus for determining a value of a pulse-width modulation (pwm) signal with which to drive a power stage of a dc-to-dc voltage converter having an output inductor coupled between the power stage and an output node that is couplable to a load. A plurality of control schemes for determining a value of a pwm signal with which to drive the power stage are maintained. ... Texas Instruments Incorporated

06/21/18 / #20180175191

Ldmos transistor with segmented gate dielectric layer

A power transistor is provided with at least one transistor finger that lies within a semiconductor material. The gate oxide is segmented into a set of segments with thick field oxide between each segment in order to reduce gate capacitance and thereby improve a resistance times gate charge figure of merit.. ... Texas Instruments Incorporated

06/21/18 / #20180175023

Dummy contacts to mitigate plasma charging damage to gate dielectrics

A method of limiting plasma charging damage on ics. A die includes gate stacks on active areas defined by a field dielectric. ... Texas Instruments Incorporated

06/21/18 / #20180175021

Isolation structure for ic with epi regions sharing the same tank

An esd cell includes an n+ buried layer (nbl) within a p-epi layer on a substrate. An outer deep trench isolation ring (outer dt ring) includes dielectric sidewalls having a deep n-type diffusion (deepn diffusion) ring (deepn ring) contacting the dielectric sidewall extending downward to the nbl. ... Texas Instruments Incorporated

06/21/18 / #20180175020

Electrostatic discharge protection device

Semiconductor devices including a diode and a resistor are disclosed herein. An example of a semiconductor device includes a substrate having a surface. ... Texas Instruments Incorporated

06/21/18 / #20180174950

Method of making a wire support leadframe for a semiconductor device

A leadframe includes a plurality of interconnected support members. A pair of die pads is connected to the support members and configured to receive a pair of dies electrically connected by at least one wire. ... Texas Instruments Incorporated

06/21/18 / #20180174887

Trench isolated ic with transistors having locos gate dielectric

An integrated circuit (ic) including at least one transistor having a metal-oxide-semiconductor (mos) gate includes a substrate having a semiconductor surface. The transistor includes at least one trench isolation region in the semiconductor surface. ... Texas Instruments Incorporated

06/21/18 / #20180174663

Area efficient parallel test data path for embedded memories

A built-in self-test (bist) parallel memory test architecture for an integrated circuit, such as a system-on-a-chip (soc), is disclosed. A bist controller generates a test data pattern for memories of a common memory type, with this test data pattern forwarded to the memories, with pipeline delay stages inserted in the data path according to the operational speed of the memory in its normal operation. ... Texas Instruments Incorporated

06/21/18 / #20180174627

Priority based backup in nonvolatile logic arrays

A processing device selectively backups only certain data based on a priority or binning structure. In one approach, a non-volatile logic controller stores the machine state by storing in non-volatile logic element arrays a portion of data representing the machine state less than all the data of the machine state. ... Texas Instruments Incorporated

06/21/18 / #20180173900

Apparatus and method for physically unclonable function (puf) for a memory array

Methods and apparatus for creating a physically unclonable function for sram are disclosed. An example method includes after applying a voltage to a memory array: determining a first duration between the applying of the voltage and a first output of a first bit cell, the first output corresponding to a first value stored in the first bit cell, and determining a second duration between the applying of the voltage and a second output of a second bit cell, the second output corresponding to a second value stored in the second bit cell. ... Texas Instruments Incorporated

06/21/18 / #20180173634

Streaming engine with early and late address and loop count registers to track architectural state

A streaming engine employed in a digital data processor specifies a fixed read only data stream defined by plural nested loops. An address generator produces address of data elements. ... Texas Instruments Incorporated

06/21/18 / #20180173532

Streaming engine with multi dimensional circular addressing selectable at each dimension

A streaming engine employed in a digital data processor specifies a fixed read only data stream defined by plural nested loops. An address generator produces address of data elements for the nested loops. ... Texas Instruments Incorporated

06/21/18 / #20180173528

Streaming engine with flexible streaming engine template supporting differing number of nested loops with corresponding loop counts and loop offsets

A streaming engine employed in a digital data processor specifies a fixed read only data stream defined by plural nested loops. An address generator produces address of data elements for the nested loops. ... Texas Instruments Incorporated

06/21/18 / #20180173422

Streaming engine with fetch ahead hysteresis

This invention controls accesses to a shared memory or resource to be bursty. An access controller determines whether the number of accesses ready for issue n is less than a current buffer capacity m. ... Texas Instruments Incorporated

06/21/18 / #20180172813

Maximum measurable velocity in frequency modulated continuous wave (fmcw) radar

A radar system is provided that includes a radar transceiver integrated circuit (ic) configurable to transmit a first frame of chirps, and another radar transceiver ic configurable to transmit a second frame of chirps at a time delay Δt, wherein Δt=tc/k, k≥2 and tc is an elapsed time from a start of one chirp in the first frame and the second frame and a start of a next chirp in the first frame and the second frame, wherein the radar system is configured to determine a velocity of an object in a field of view of the radar system based on first digital intermediate frequency signals generated responsive to receiving reflected chirps of the first frame and second digital if signals generated responsive to receiving reflected chirps of the time delayed second frame, wherein the maximum measurable velocity is increased by a factor of k.. . ... Texas Instruments Incorporated

06/21/18 / #20180172763

Reduced signaling interface method & apparatus

This disclosure describes a reduced pin bus that can be used on integrated circuits or embedded cores within integrated circuits. The bus may be used for serial access to circuits where the availability of pins on ics or terminals on cores is limited. ... Texas Instruments Incorporated

06/21/18 / #20180172750

Line fault signature analysis

In described examples, a time-domain analyzer is arranged to generate an indication of a number of high-frequency events of an electrical monitor signal that includes a fundamental periodic frequency. The high-frequency events include frequencies higher than the fundamental periodic frequency. ... Texas Instruments Incorporated

06/14/18 / #20180167083

Lossless data compression

A method of data compression includes obtaining binary sensor data having rows with multi-bit data samples. The rows are divided into data groups each including two or more samples. ... Texas Instruments Incorporated

06/14/18 / #20180166990

Buck-boost converter controller

A controller for a dc-dc converter includes a state machine and a plurality of drivers for controlling switches in the dc-dc converter, where each state in the state machine determines a state of the drivers, and a plurality of timers, where each state in the state machine, other than a passive state, has an associated timer for the state of the drivers.. . ... Texas Instruments Incorporated

06/14/18 / #20180166369

Bi-layer nanoparticle adhesion film

A device comprises a substrate) of a first material with a surface, which is modified by depositing a bi-layer nanoparticle film. The film includes a nanoparticle layer of a second material on top of and in contact with surface, and a nanoparticle layer of a third material on top of and in contact with the nanoparticle layer of the second material. ... Texas Instruments Incorporated

06/14/18 / #20180166280

Methods and apparatus for preventing counter-doping during high temperature processing

In a described example method, semiconductor wafer with a backside silicon nitride layer is encapsulated with a diffusion barrier layer prior to a high temperature anneal greater than about 1000 degrees celsius. After the high temperature anneal the diffusion barrier layer and the backside silicon nitride layers are stripped.. ... Texas Instruments Incorporated

06/14/18 / #20180165846

Graphing device with automatic slider parameter

Described examples include a graphing device having a display. The graphing device also has a processor operable to present a graph of a function on the display and operable to generate a slider on the display in which at least one parameter of the slider is derived from a context element of the graph.. ... Texas Instruments Incorporated

06/14/18 / #20180165543

Methods and systems for analyzing images in convolutional neural networks

A method for analyzing images to generate a plurality of output features includes receiving input features of the image and performing fourier transforms on each input feature. Kernels having coefficients of a plurality of trained features are received and on-the-fly fourier transforms (otf-fts) are performed on the coefficients in the kernels. ... Texas Instruments Incorporated

06/14/18 / #20180165480

Theft detector

An end-user computing device can include a theft detector that maintains a registered host device list containing identifiers of at least one registered host device. The theft detector can have root access to operations of the end-user device and the theft detector can provides a secure reboot request in response to detecting a possible theft condition. ... Texas Instruments Incorporated

06/14/18 / #20180164902

User interface mechanical control apparatus with optical and capacitive position detection and optical position indication

Disclosed examples include optical and capacitive position detection systems and user interface control apparatus to detect relative positions of a stationary first structure and a movable second structure. The optical system includes pairs of optical source and sensor devices spaced along a first direction on the first structure and a reflector extending along the first direction on the second structure to selectively reflect light from one of the optical sources to the corresponding optical sensor of a given pair when the reflector is proximate the given pair. ... Texas Instruments Incorporated

06/14/18 / #20180164377

Programmable test compression architecture input/output shift register coupled to sci/sco/pco

The disclosure describes novel methods and apparatuses for accessing test compression architectures (tca) in a device using either a parallel or serial access technique. The serial access technique may be controlled by a device tester or by a jtag controller. ... Texas Instruments Incorporated

06/14/18 / #20180162722

Electronic sensors with sensor die in package structure cavity

Disclosed examples include sensor apparatus and integrated circuits having a package structure with an internal cavity and an opening that connects of the cavity with an ambient condition of an exterior of the package structure, and an electronic sensor structure mechanically supported by wires in the cavity and including a sensing surface exposed to the cavity to sense the ambient condition of an exterior of the package structure.. . ... Texas Instruments Incorporated

06/14/18 / #20180162721

Gasses for increasing yield and reliability of mems devices

In described examples, a mems device is enclosed within a sealed package including nonmetal oxide gasses at levels greater than 1% by volume. In at least one example, the mems device is protected against premature failure from various causes, including charging, particle growth and stiction by moieties of the nonmetal oxide gasses reacting with various exposed surfaces within the package of the mems device and/or the adsorbed water layers on said surfaces.. ... Texas Instruments Incorporated

06/07/18 / #20180160492

Led current controller

A method and apparatus comprises regulating, by a modulator of a led controller, a plurality of current sinks to operate in a linear region of a current-to-voltage curve which is associated with a constant value of resistance, wherein each current sink is coupled to each of a plurality of led strings, receiving, by the modulator, information of first current flowing through each of a plurality of led strings, processing, by a control logic coupled to the modulator, the information of the first current, and based on the processed information of the first current, providing, by the control logic, at least two choices of information of second current that is to be flown through each respective led string.. . ... Texas Instruments Incorporated

06/07/18 / #20180159831

Pairwise temporal key creation for secure networks

A system and method for establishing a pairwise temporal key (ptk) between two devices based on a shared master key and using a single message authentication codes (mac) algorithm is disclosed. The devices use the shared master key to independently compute four macs representing the desired ptk, a kck, and a first and a second kmac. ... Texas Instruments Incorporated

06/07/18 / #20180159647

Synchronizing vehicle devices over a controller area network

A method for synchronizing devices in a vehicle may make use of the controller area network (can) communication bus. A bus interface of each of two or more devices coupled to the bus may be configured to accept a same message broadcast via the communication bus, in which the message has a specific message identification (id) header. ... Texas Instruments Incorporated

06/07/18 / #20180159594

Data encoder for power line communications

In a disclosed embodiment, a power line communication (plc) transmitter includes a forward error correction (fec) encoder that receives payload data and adds parity information to the data to create an encoded output, a fragmenter that receives the encoded output from the fec encoder and segments the encoded output into a plurality of fragments, a fragment repetition encoder that receives the plurality of fragments from the fragmenter and copies each of the fragments a selected number of times, and an interleaver that receives the copies of the plurality of fragments from the fragment repetition encoder and interleaves the copies of the plurality of fragments for transmission on a power line.. . ... Texas Instruments Incorporated

06/07/18 / #20180159547

Method and apparatus to reduce the leakage rate of a hermetic cavity

A chip scale vapor cell and millimeter wave atomic clock apparatus are disclosed. The chip scale vapor cell includes a first substrate and a second substrate bonded to the first substrate with a bonding material. ... Texas Instruments Incorporated

06/07/18 / #20180159259

Integrated circuit (ic) chip socket

An integrated circuit (ic) chip socket that can include a non-conductive housing and moveable pogo pins positioned within the non-conductive housing. The moveable pogo pins can include active pogo pins, each active pogo pin being positioned to a corresponding lead of an ic chip insertable into the ic chip socket. ... Texas Instruments Incorporated

06/07/18 / #20180157778

Side-by-side interactive circuit design panel

A design interface can provide an interactive circuit design panel for a given circuit solution operating at a set of specifications. The design interface can switch to a side-by-side design panel in response to selection of at least one compatible circuit solution selected from a list of compatible circuit solutions. ... Texas Instruments Incorporated

06/07/18 / #20180157308

Static power reduction in caches using deterministic naps

Disclosed embodiments relate to a dnap architecture that accurately transitions cache lines to full power state before an access to them. This ensures that there are no additional delays due to waking up drowsy lines. ... Texas Instruments Incorporated

06/07/18 / #20180156910

In-phase (i) and quadrature (q) imbalance estimation in a radar system

A radar system is provided that includes transmission signal generation circuitry, a transmit channel coupled to the transmission generation circuitry to receive a continuous wave test signal, the transmit channel configurable to output a test signal based on the continuous wave signal in which a phase angle of the test signal is changed in discrete steps within a phase angle range, a receive channel coupled to the transmit channel via a feedback loop to receive the test signal, the receive channel including an in-phase (i) channel and a quadrature (q) channel, a statistics collection module configured to collect energy measurements of the test signal output by the i channel and the test signal output by the q channel at each phase angle, and a processor configured to estimate phase and gain imbalance of the i channel and the q channel based on the collected energy measurements.. . ... Texas Instruments Incorporated

06/07/18 / #20180156903

Methods and apparatus for reducing a transient glitch in ultrasound applications

Methods and apparatus for reducing a transient glitch in ultrasound applications are disclosed. An example apparatus includes a transducer to (a) output a signal during a transmit phase and (b) receive a reflected signal corresponding to the signal during a receive phase; a receiver switch coupled to the transducer at a first node, the receiver switch to (a) open during the transmit phase and (b) close during the receive phase; and a clamp coupled to the transducer at the first node, the clamp to provide a high impedance during the transmit phase and the receive phase and provide a low impedance during a transient phase.. ... Texas Instruments Incorporated








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