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Avnera Corporation patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Avnera Corporation-related inventors


Power supply for class g amplifier

A class g amplifier system including a processing unit configured to receive an input signal and output a delayed processed input signal, a class g amplifier configured to receive the delayed processed input signal, and a power supply. The power supply includes a regulator configured to operate in a plurality of configurations, each configuration outputs a different supply voltage to the class g amplifier and a control circuit configured to receive the input signal and determine the supply voltage required from the regulator when the delayed processed input signal is received at the class g amplifier, and output a signal to the regulator to indicate the required configuration for the required supply voltage.. ... Avnera Corporation

Hybrid flash architecture of successive approximation register analog to digital converter

The disclosure includes a mechanism for mitigating electrical current leakage in a successive approximation register (sar) analog to digital converter (adc) by using a flash adc in conjunction with the sar adc. A sequence controller in the sar adc uses the output of the flash adc to control a switch array. ... Avnera Corporation

Reference disturbance mitigation in successive approximation register analog to digital converter

The disclosure includes a mechanism for mitigating charge related disturbances in a successive approximation register (sar) analog to digital converter (adc) by providing a fine reference connection and a rough reference connection. A switch array is activated to couple a current bit capacitor of a capacitor array to the rough reference connection while a current bit corresponding to the current bit capacitor is determined by a comparator. ... Avnera Corporation

Chopper stabilized comparator for successive approximation register analog to digital converter

The disclosure includes an analog to digital converter (adc). The adc includes a comparator to compare sample values of an analog signal in an analog domain to reference values to determine digital values in a digital domain. ... Avnera Corporation

Multicore successive approximation register analog to digital converter

The disclosure includes an analog to digital converter (adc). The adc includes a successive approximation register (sar) unit including one or more capacitive networks. ... Avnera Corporation

Programmable trim filter for successive approximation register analog to digital converter comparator

The disclosure includes a successive approximation register (sar) analog to digital converter (adc). The sar adc includes a sampling network to store a sample of an analog signal. ... Avnera Corporation

Low supply active current mirror

A circuit can have a low mirror input voltage and fast settling while providing a large current mirror gain. The circuit can include a current source, a first current mirror device having a first transistor and a second transistor and electrically coupled with the current source, a third transistor electrically coupled with the first transistor, a second current mirror device having a fourth transistor and a fifth transistor and electrically coupled between the third transistor and the second transistor, and an output device electrically coupled with the first and second current mirror devices.. ... Avnera Corporation

Low-power, always-listening, voice command detection and capture

A system for detecting and capturing voice commands, the system comprising a voice-activity detector (vad) configured to receive a vad-received digital-audio signal; determine the amplitude of the vad-received digital-audio signal; compare the amplitude of the vad-received digital-audio signal to a first threshold and to a second threshold; withhold a vad interrupt signal when the amplitude of the vad-received digital-audio signal does not exceed the first threshold or the second threshold; generate the vad interrupt signal when the amplitude of the vad-received digital-audio signal exceeds the first threshold and the second threshold; and perform spectral analysis of the vad-received digital-audio signal when the amplitude of the vad-received digital-audio signal is between the first threshold and the second threshold.. . ... Avnera Corporation

Acoustic processor having low latency

An audio system can include an analog portion having multiple input sensors and an output device, a first digital portion running at a first rate and having a first processor that is electrically coupled with the input sensors and the output device, and a second digital portion running at a second rate that is higher than the first rate and having a second processor that is electrically coupled with the first processor.. . ... Avnera Corporation

Digitally calibrated successive approximation register analog-to-digital converter

A system can include an analog input port; a digital output port; and a successive approximation register (sar) analog-to-digital converter (adc). The sar adc can include a voltage comparator vd having a first input, a second input, and an output; a first plurality of capacitors cp[0:n] that are coupled with the analog input port and each have a top plate and a bottom plate; a second plurality of capacitors cn[0:n] that are coupled with the analog input port and each have a top plate and a bottom plate; and a sar controller coupled between the output of the voltage comparator vd and the digital output port.. ... Avnera Corporation

Active noise cancelation with controllable levels

A system including an automatic noise canceling (anc) headphone and a processor. The anc headphone has a microphone configured to generate a microphone signal and at least two non-zero anc gain levels. ... Avnera Corporation

Headset charger node

The disclosure includes a headset including one or more earphones and a connector configured to couple data and charge between the headset and a user equipment (ue). The headset also includes a charge node. ... Avnera Corporation

Spdif clock and data recovery with sample rate converter

A system can include a digital oversampler configured to oversample an input data stream; a rate generator configured to select a frequency that is not less than an expected frequency of the input data stream; a rate generator clock of the rate generator configured to output a clock signal that has the selected frequency; a sample receiver configured to receive at least one sample of the input data stream from the digital oversampler; a sample counter configured to be incremented by each received sample responsive to a determination that the sample receiver has received at least one sample of the input data stream from the digital oversampler; a sample rate converter configured to accumulate samples from the sample receiver at the rate of a “toothless” clock signal, wherein the sample counter is configured to be decremented by the “toothless” clock signal at the selected frequency responsive to a determination that the sample receiver has not received at least one sample of the input data stream from the digital oversampler; and an and gate configured to pass the “toothless” clock signal to the sample rate converter responsive to a determination that an output of the sample counter is greater than zero.. . ... Avnera Corporation

Noise cancellation system

An adaptive noise canceling system can include a noise cancellation processor having an audio input for receiving an input audio signal, a microphone input structured to receive one or more microphone signals from a monitored environment, and a filter processor structured to produce a filtering function based on one or more filter parameters. The system can also include an adaptivity processor structured to change the one or more filter parameters in the noise cancellation processor based on a changing operating environment of the adaptive noise canceling system.. ... Avnera Corporation

02/08/18 / #20180041196

Rate convertor

Embodiments of the invention may be used to implement a rate converter that includes: 6 channels in forward (audio) path, each channel having a 24-bit signal path per channel, an end-to-end snr of 110 db, all within the 20 hz to 20 khz bandwidth. Embodiment may also be used to implement a rate converter having: 2 channels in a reverse path, such as for voice signals, 16-bit signal path per channel, an end-to-end snr of 93 db, all within 20 hz to 20 khz bandwidth. ... Avnera Corporation

01/18/18 / #20180020281

In-the-ear automatic-noise-reduction devices, assemblies, components, and methods

Automatic noise-reduction (anr) headsets include circuitry that cancels or suppress undesired noises. Recent years have seen the emergence of in-the-ear (ite) earphones that incorporate anr technology; however, designing them to function well usually entails many design tradeoffs, such as using larger ear nozzles that are uncomfortable to obtain desired noise reduction or that require added structures to hold the earphones to a user ear. ... Avnera Corporation

11/16/17 / #20170332164

Audio layer in keyboard device providing enhanced audio performance

A case having a recessed holding, an acoustic waveguide, and at least one audio transducer device. The recessed holding well is configured to receive and captively hold a stand-alone keyboard within the recessed holding well. ... Avnera Corporation

09/28/17 / #20170277210

Wide supply range precision startup current source

A start-up circuit for a bandgap reference voltage generator circuit, including a first native transistor with a drain connected to a supply voltage of the bandgap reference voltage generator circuit and a source connected to a gate of the first native transistor; a low voltage transistor with a source connected to ground, a drain connected to the source of the first native transistor, and a gate connected to a resistor; a second native transistor with a source connected to the resistor, a gate connected to the source of the first native transistor; a high voltage transistor with a drain connected to a drain of the second native transistor and a source connected to the supply voltage; and a transistor with a gate connected to the gate of the first high voltage transistor and a drain which provides a start-up current for the bandgap reference voltage generator circuit.. . ... Avnera Corporation

09/21/17 / #20170272861

Ring network of bluetooth speakers

A method for forming a complete ring network of a plurality of bluetooth® speakers, the method including populating a configurable speaker register of each of the plurality of bluetooth® speakers with an address of an upstream bluetooth® speaker that is in the plurality of bluetooth® speakers, populating the configurable speaker register of each of the plurality of bluetooth® speakers with an address of a downstream bluetooth® speaker that is in the plurality of bluetooth® speakers, and coupling an audio source to one bluetooth® speaker of the plurality of bluetooth® speakers.. . ... Avnera Corporation

09/07/17 / #20170257702

Low power synchronous data interface

A low power, digital audio interface includes support for variable length coding depending on content of the audio data sent from the interface. A particularized coding system is implemented that uses techniques of silence detection, dynamic scaling, and periodic encoding to reduce sent data to a minimum. ... Avnera Corporation

09/07/17 / #20170257699

Acoustic layer in media device providing enhanced audio performance

An acoustic layer is added to a laptop-type personal computing device, comprising: enclosing walls, optionally—one or more microphones, a signal processing device, at least one audio transducer, and an acoustic waveguide. The acoustic layer adjoins one or more internal areas of a laptop-type device. ... Avnera Corporation

08/31/17 / #20170250703

Analog to digital converters with oversampling

Embodiments of the invention include an oversampling analog to digital converter that uses uneven non-overlapping clock phases to reduce switched capacitor circuit power consumption. A return-to-zero sub phase of one of the clock phases may also be used for feedback reference capacitors. ... Avnera Corporation

08/03/17 / #20170222793

Spdif clock and data recovery with sample rate converter

A method can include a digital oversampler oversampling an input data stream, a rate generator selecting a frequency that is not less than an expected frequency of the input data stream, a rate generator clock of the rate generator outputting a clock signal that has the selected frequency, determining whether a sample receiver has received at least one sample of the input data stream from the digital oversampler, and, responsive to a determination that the sample receiver has received at least one sample of the input data stream from the digital oversampler, incrementing a sample counter by each received sample. The method can also include a sample rate converter accumulating samples from the sample receiver at the rate of a “toothless” clock signal, determining whether an output of the sample counter is greater than zero, and, responsive to a determination that the output of the sample counter is greater than zero, an and gate passing the “toothless” clock signal to the sample rate converter.. ... Avnera Corporation

07/13/17 / #20170199716

Gesture-controlled tabletop speaker system

A speaker system includes a case, an audio input, speakers, an accelerometer, and a computer processor. The audio input is structured to receive a program audio signal from an audio device. ... Avnera Corporation

05/18/17 / #20170142262

Speakerphone system or speakerphone accessory with on-cable microphone

A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. ... Avnera Corporation

05/04/17 / #20170126240

Digitally calibrated successive approximation register analog-to-digital converter

A circuit can include a voltage comparator vd having a first input, a second input, and an output; a first plurality of capacitors cp[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the first input of the voltage comparator vd, wherein each top plate is also switchably electrically coupled with a common mode voltage vcm, and wherein each bottom plate is switchably electrically coupled between a first input voltage vinp, a reference voltage vref, the common mode voltage vcm, and ground; a second plurality of capacitors cn[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the second input of the voltage comparator vd, wherein each top plate is also switchably electrically coupled with the common mode voltage vcm, and wherein each bottom plate is switchably electrically coupled between a second input voltage vinn, the reference voltage vref, the common mode voltage vcm, and ground; and a successive approximation register (sar) controller coupled with the output of the voltage comparator vd.. . ... Avnera Corporation

04/20/17 / #20170110106

Calibration and stabilization of an active notice cancelation system

A method of calibrating an earphone may include: securing an anc earphone to a calibration fixture, the calibration fixture including an ear model configured to support the anc earphone, the ear model having an ear canal configured to anatomically resemble a human ear canal and a concha configured to anatomically resemble a human ear concha, the ear canal extending from the concha to an inner end of the ear canal; generating, with the anc earphone, an audio signal based on a reference tone; determining a characteristic of the audio signal; comparing the characteristic of the audio signal to a previously determined reference characteristic; and adjusting a gain value of the anc earphone based on the comparing. Additional methods and apparatus are also disclosed.. ... Avnera Corporation

04/20/17 / #20170110105

Active noise cancelation with controllable levels

A system including an automatic noise canceling (anc) headphone and a processor. The anc headphone has a microphone configured to generate a microphone signal and at least two non-zero anc gain levels. ... Avnera Corporation

04/13/17 / #20170104461

On-chip resistor divider compensation with a 2vrms input

A new compensation system for an audio input reduces noise by matching feedback ratios in the positive and negative paths. A variable resistance network allows for fine control of resistance trimming in one of the signal paths, which allows for compensation between tolerance of resistors that are external to an integrated circuit and those that are internal to the integrated circuit.. ... Avnera Corporation

03/23/17 / #20170085989

Ring network of bluetooth speakers

A method for forming a complete ring network of a plurality of bluetooth® speakers, the method including populating a configurable speaker register of each of the plurality of bluetooth® speakers with an address of an upstream bluetooth® speaker that is in the plurality of bluetooth® speakers, populating the configurable speaker register of each of the plurality of bluetooth® speakers with an address of a downstream bluetooth® speaker that is in the plurality of bluetooth® speakers, and coupling an audio source to one bluetooth® speaker of the plurality of bluetooth® speakers.. . ... Avnera Corporation

02/02/17 / #20170034619

Acoustic processor having low latency

An audio system having low latency includes a digital audio processor as well as sensor inputs coupled to the processor. The sensor inputs may be microphone inputs. ... Avnera Corporation

01/12/17 / #20170013345

Off-ear and on-ear headphone detection

A headphone detector including a headphone and a processor. The headphone has a microphone and a speaker, and the microphone is configured to generate an audio signal based on an output of the speaker. ... Avnera Corporation








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