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Realtek Semiconductor Corp patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Realtek Semiconductor Corp-related inventors


 new patent  Operating voltage switching device

An operating voltage switching device includes a first current mirror circuit generating a corresponding sensing current according to an input current; a comparator comparing a reference voltage with a voltage at a node of the first current mirror circuit to generate a comparison signal; a first power domain providing a first output current to an internal circuit according to the sensing current; a second power domain providing a second output current to the internal circuit according to the sensing current; and a power domain selecting circuit, which is coupled to the comparator, the first power domain and the second power domain, and selects to enable the first power domain or the second power domain according to the comparison signal; wherein the sensing current is not greater than the input current.. . ... Realtek Semiconductor Corp

Headphone amplifier circuit for headphone driver, operation method thereof, and usb interfaced headphone device using the same

Provided herein are a headphone amplifier circuit for a headphone driver, an operation method thereof, and a universal serial bus (usb) interfaced headphone device using the same. The output stage of the headphone amplifier circuit is improved to have a differential output structure so as to effectively solve the crosstalk issue and increase the isolation between the left and the right channels such that the audio content presents a spatial perception and a distance perception more specifically.. ... Realtek Semiconductor Corp

Charge-steering amplifier circuit and control method thereof

This disclosure provides a charging-steering amplifier circuit and the control method thereof. The charging-steering amplifier circuit includes a charging-steering differential amplifier and a sample and hold circuit. ... Realtek Semiconductor Corp

Integrated circuit and operation method of the same

A display controller disposed in a display device that includes a flash memory and an integrated circuit is provided. The flash memory stores display device information of the display device. ... Realtek Semiconductor Corp

Method for wirelessly connecting to an internet

A method for wirelessly connecting to an internet, applied for establishing a wireless connection between a mobile device and a plurality of wireless networking devices, the method including: the mobile device searching for the plurality of wireless networking devices via a wireless communication; the mobile device wirelessly connecting with a main controlling device which is one of the plurality of wireless networking devices; the mobile device providing a connection information to the main controlling device for connecting to a base station; and the main controlling device broadcasting the connection information to the other wireless networking devices of the plurality of wireless networking devices; and the main controlling device and the other wireless networking devices of the plurality of wireless networking devices connecting to the base station according to the connection information.. . ... Realtek Semiconductor Corp

Electronic component of electronic device, method of starting electronic device and encryption method

An electronic component of an electronic device, a method of starting an electronic device, and an encryption method. The electronic device includes a key storage unit that stores a first key, a key protection circuit that controls access of the key storage unit, and a storage unit that stores a second key and encrypted booting instructions. ... Realtek Semiconductor Corp

Integrated circuit test method

The present invention discloses an ic test method including the following steps: generating n test patterns; testing each of m chip(s) according to the n test patterns so as to generate n×m records of quiescent dc current (iddq) data; generating n reference values according to the n×m records, in which each of the n reference values is generated according to m record(s) of the n×m records, and the m record(s) and the reference value generated thereupon are related to the same one of the n test patterns; obtaining a reference order of the n test patterns according to the n reference values and a sorting rule; reordering the n×m records by the reference order so as to obtain reordered n×m records; generating an iddq range according to the reordered n×m records; and determining whether any of the m chip(s) is defective based on the iddq range.. . ... Realtek Semiconductor Corp

Auxiliary channel transceiving circuit of displayport interface

An auxiliary channel transceiving circuit includes: a first node and a second node; a first voltage-dividing circuit for generating a first received signal according to a signal from the first node; a second voltage-dividing circuit for generating a second received signal according to a signal from the second node; a first receiver amplifying circuit for amplifying the first received signal to generate a first amplified signal; a second receiver amplifying circuit for amplifying the second received signal to generate a second amplified signal; a comparison circuit for comparing the first amplified signal with the second amplified signal to generate a received signal; a first transmitter amplifying circuit for generating a first output signal according to a transmitting signal; and a second transmitter amplifying circuit for generating a second output signal according to the transmitting signal. The auxiliary channel transceiving circuit is not required to cooperate with traditional capacitors.. ... Realtek Semiconductor Corp

Flc-based image compression method and device

A fixed length code (flc)-based image compression method and a device thereof. The method is utilized to compress a block containing plural pixels and includes the following steps: determining a first representative pixel, a second representative pixel and a third representative pixel from the pixels according to pixel values of the pixels, the three representative pixels being noncollinear in a color space to which the pixels correspond; generating plural first interpolated pixels by interpolation according to the first representative pixel and the third representative pixel; generating plural second interpolated pixels by interpolation according to the second representative pixel and the third representative pixel; and generating an index value for each pixel according to the three representative pixels, the first interpolated pixels and the second interpolated pixels.. ... Realtek Semiconductor Corp

Memory control device and memory control method

A memory control device, which includes a signal generating circuit, a data writing circuit and a repeating circuit. The repeating circuit is coupled to the data writing circuit. ... Realtek Semiconductor Corp

Network driving circuit and method of driving network device

A method of driving a network device for outputting signals to a physical network transmission medium. The network device includes a dac circuit that comprises a plurality of digital-to-analog conversion units. ... Realtek Semiconductor Corp

Sigma delta modulator and signal conversion method thereof

A sigma delta modulator includes a sigma delta modulating loop and a plurality of adjusting loops. The sigma delta modulating loop processes an input signal and an adjustment signal based on a first clock signal, so as to generate a quantized output signal. ... Realtek Semiconductor Corp

Operational amplifier and differential amplifying circuit thereof

An operational amplifier and a differential amplifying circuit thereof. The differential amplifying circuit receives a differential input signal and outputs a differential output signal. ... Realtek Semiconductor Corp

Power amplifier

The present invention discloses a power amplifier capable of adaptively operating in one of an energy efficient mode and a high output power mode. An embodiment of the power amplifier includes a first transistor, a second transistor, a first bias element, a second bias element, a third bias element and a plurality of switches. ... Realtek Semiconductor Corp

05/31/18 / #20180151290

Integrated inductor and method for manufacturing the same

An integrated inductor is disclosed herein. The integrated inductor includes a substrate, an insulation layer, and an inductor. ... Realtek Semiconductor Corp

05/31/18 / #20180151232

Memory control circuit and method thereof

This invention discloses a memory control circuit and a method thereof. The memory control method includes the steps of: transmitting a first clock to a serial peripheral interface (spi) nor flash memory; transmitting a read instruction to the spi nor flash memory; waiting for a read waiting time period, which is associated with a specification of the spi nor flash memory and a cycle of the first clock; waiting for a delay time period, which is associated with a delay setting value and a cycle of a second clock different from the first clock; receiving read data returned from the spi nor flash memory; and adjusting the delay time period according to whether the read data are correct or not. ... Realtek Semiconductor Corp

05/24/18 / #20180144620

Infrared learning device

An infrared (ir) learning device is disclosed. A hardware device of the ir learning device amplifies, shapes, and samples an ir signal to acquire a better digital signal related to the ir signal. ... Realtek Semiconductor Corp

05/24/18 / #20180143225

Detection circuit for power over ethernet and detection current generation method thereof

A detection circuit for power over ethernet (poe) and a detection current generation method thereof. The detection circuit for poe is installed in power sourcing equipment (pse), and generates a first detection current in a first detection mode to detect a power device (pd) of a first type and generates a second detection current in a second detection mode to detect a pd of a second type. ... Realtek Semiconductor Corp

05/17/18 / #20180138895

Resistance calibration circuit and device

The present invention discloses a resistance calibration circuit. An embodiment of the resistance calibration circuit includes: a reference voltage outputting circuit operable to output a reference voltage; an adjustable internal resistor including at least one positive temperature coefficient resistor and at least one negative temperature coefficient resistor; a reference current generating circuit operable to generate an internal resistor reference current according to the reference voltage and the internal resistor and generate an external resistor reference current according to the reference voltage and an external resistor; and a comparison and control circuit operable generate a comparison result according to the internal and external resistor reference currents, and adjust the internal resistor according to the comparison result till the comparison result indicates that the difference between the internal and external resistor reference currents is less than a predetermined threshold or unable to be further reduced.. ... Realtek Semiconductor Corp

05/17/18 / #20180137897

Intermediate circuit for memory card access

The present invention discloses an intermediate circuit including: a detection circuit generating a detection result indicating a memory card signal conforming to one of a first and a second voltage specifications which specify a higher first operation voltage and a lower second operation voltage respectively; a control circuit generating a conversion control signal and a selection control signal according to the detection result; a conversion circuit converting the memory card signal into a card-to-system conversion signal conforming to the second voltage specification according to the conversion control signal when the memory card signal conforms to the first voltage specification; and a selection circuit outputting the card-to-system conversion signal according to the selection control signal when the memory card signal conforms to the first voltage specification, and outputting the memory card signal according to the selection control signal when the memory card signal conforms to the second voltage specification.. . ... Realtek Semiconductor Corp

05/17/18 / #20180136879

Intermidiate circuit for memory card access

The present invention discloses an intermediate circuit including: a detection circuit detecting a memory card signal to generate a detection result indicating the memory card signal conforming to one of a first and a second signal types which are dedicated to different physical transmission interfaces respectively; a control circuit generating a conversion control signal and a selection control signal according to the detection result; a conversion circuit converting the memory card signal into a card-to-system conversion signal of the second signal type according to the conversion control signal when the memory card signal conforms to the first signal type; and a selection circuit outputting the card-to-system conversion signal according to the selection control signal when the memory card signal conforms to the first signal type, and outputting the memory card signal according to the selection control signal when the memory card signal conforms to the second signal type.. . ... Realtek Semiconductor Corp

05/17/18 / #20180136681

Voltage reference buffer circuit

The present invention discloses a voltage reference buffer circuit. An embodiment of the voltage reference buffer circuit includes: a first bias generator configured to generate a first bias voltage; a second bias generator configured to generate a second bias voltage different from the first bias voltage; a first driving component coupled to a high voltage terminal, the first bias generator and a reference voltage output terminal, and configured to control a reference voltage at the reference voltage output terminal according to the first bias voltage; and a second driving component coupled to the reference voltage output terminal, the second bias generator and a low voltage terminal, and configured to control a current between the reference voltage output terminal and the second driving component according to the second bias voltage.. ... Realtek Semiconductor Corp

05/10/18 / #20180131353

Common-mode clamping circuit and method thereof

An apparatus includes a first ac (alternating current) coupling circuit configured to receive a first end of a differential signal and output a first coupled signal in accordance with a bias voltage; a second ac coupling circuit configured to receive a second end of the differential signal and output a second coupled signal in accordance with the bias voltage; a first complementary joint-control cascode pair configured to shunt the first end of the differential signal to a dc (direct current) node in accordance with a joint control by the first coupled signal and the second coupled signal; and a second complementary joint-control cascode pair configured to shunt the second end of the differential signal to the dc node in accordance with a joint control by the first coupled signal and the second coupled signal. A related method is also provided.. ... Realtek Semiconductor Corp

05/10/18 / #20180129617

Memory card reading method which adjusts reader to host interface

A memory card reading method applied to an electronic device, includes: detecting a specification information of a memory card, wherein the specification information includes a transfer speed of the memory; and controlling according to the specification information a reader to host interface to operate in a first operating mode or a second operating mode for reading the memory card, wherein the first operating mode and the second operating mode correspond to different data transfer speeds.. . ... Realtek Semiconductor Corp

05/03/18 / #20180123599

Phase adjustment circuit, control method, and measurement method

A control method, which is adapted to a phase interpolator configured to generate an output signal based on a current distribution ratio, includes following operations: selecting a first input pair and a second input pair from the phase interpolator; sequentially switching currents associated with the current distribution ratio from the first input pair to flowing through the second input pair, in order to adjust a phase of the output signal to correspond to a first phase interval; and after all of the currents flow through to the second input pair, selecting the second input pair and a third input pair form the phase interpolator, and adjusting the current distribution ratio to correspond the phase of the output signal to a second phase interval, in which the first phase interval and the second phase interval are continuous.. . ... Realtek Semiconductor Corp

05/03/18 / #20180122561

Transformer

A transformer includes an input terminal, an output terminal, a first wire, and a second wire. The input and output terminals are disposed at two sides of the transformer with respect to a middle point of the transformer. ... Realtek Semiconductor Corp

05/03/18 / #20180120375

Testing integrated circuit, testing method and electronic device

An integrated circuit installed in an electronic device having an external connector, including: a monitor circuit and a control circuit. The monitor circuit coupled to the external connector is configured to monitor a code generated from a user's input and inputted via the external connector, the monitor circuit generating a control signal according to the code; and the control circuit coupled to the monitor circuit and at least a circuit block of the electronic device is configured to control the external connector to be coupled to the circuit block according to the control signal; wherein a testing operation is executed in response to a testing signal inputted to the control circuit via the external connector for checking and modifying a status of the circuit block of the electronic device after the external connector is coupled to the control circuit.. ... Realtek Semiconductor Corp

04/19/18 / #20180110008

Radio-frequency module and wireless device

A wireless device includes a radio-frequency module, a modem module, and a control unit. The radio-frequency module and the modem module operate either in a first operation mode or in a second operation mode. ... Realtek Semiconductor Corp

04/19/18 / #20180109281

Dual-mode signal transceiver and transceiving method thereof

A dual-mode signal transceiver includes a first transmitter circuit, a second transmitter circuit, and a receiver circuit. The first transmitter circuit is configured to operate in a first mode and configured to process a first input signal according to a first oscillating signal, in order to output a first output signal. ... Realtek Semiconductor Corp

04/19/18 / #20180109247

Phase interpolator and clock generating method

A phase interpolator includes a current generating circuit, a current controlling circuit and a signal generating circuit, wherein the current generating circuit is arranged to generate a current; and the current controlling circuit is arranged to generate a control signal to the current generating circuit to control a current value of the current. The signal generating circuit includes a capacitor, wherein the signal generating circuit generates a phase interpolation signal by using the capacitor to receive the current, wherein a phase of the phase interpolation signal is varied according to the current.. ... Realtek Semiconductor Corp

04/19/18 / #20180109232

Amplifier device

An amplifier device includes an amplifier circuit, a feedback circuit, and a filter circuit. The amplifier circuit is configured to receive an input signal and a filtered signal, and to output a first output signal and a second output signal at a first output terminal and a second output terminal respectively. ... Realtek Semiconductor Corp

04/05/18 / #20180097355

Cross-domain esd protection circuit

An esd protection circuit includes: a first current path switch arranged in a parallel connection with a first circuit and turned off when a first node voltage is at a logic high level; a first node for providing the first node voltage; a resister element coupled between a first power terminal and the first node; a mos capacitor coupled between the first node and a first fixed-voltage terminal; a second current path switch arranged in a parallel connection with a second circuit and controlled by a second node voltage; a switch control circuit for providing the second node voltage; and a node voltage control circuit for controlling the first node voltage according to the second node voltage to ensure the first current path switch is turned off when the first power terminal supplies power to the first circuit while the second power terminal supplies power to the second circuit.. . ... Realtek Semiconductor Corp

04/05/18 / #20180096983

Cross-domain esd protection circuit

An esd protection circuit includes: a first current path switch arranged in a parallel connection with a first circuit and turned off when a first node voltage is at a logic low level; a first node for providing the first node voltage; a resister element coupled between a first power terminal and the first node; a mos capacitor coupled between the first node and a first fixed-voltage terminal; a second current path switch arranged in a parallel connection with a second circuit and controlled by a second node voltage; a switch control circuit for providing the second node voltage; and a node voltage control circuit for controlling the first node voltage according to the second node voltage to ensure the first current path switch is turned off when the first power terminal supplies power to the first circuit while the second power terminal supplies power to the second circuit.. . ... Realtek Semiconductor Corp

03/22/18 / #20180082947

Structure of integrated inductor

This invention discloses a structure of an integrated inductor, comprising: an outer metal segment which comprises a first metal sub-segment and a second metal sub-segment; an inner metal segment which is arranged inside an area surrounded by the outer metal segment and comprises a third metal sub-segment and a fourth metal sub-segment; and at least a connecting structure for connecting the outer metal segment and the inner metal segment. The first metal sub-segment corresponds to the third metal sub-segment, and the first metal sub-segment and the third metal sub-segment belong to different metal layers in a semiconductor structure. ... Realtek Semiconductor Corp

03/15/18 / #20180074125

Circuit and method for differential signal skew detection

The present invention discloses a differential signal skew detecting circuit configured to detect a skew of a differential signal. An embodiment of the circuit includes: a common mode voltage outputting circuit configured to output a common mode reference voltage and a common mode skew voltage; and a skew detecting circuit configured to inspect the common mode reference voltage and the common mode skew voltage according to a clock signal so as to output a skew detection value, in which when the skew detecting circuit detects the skew of the differential signal, the skew detection value is a first value, and when the skew detecting circuit detects no skew of the differential signal, the skew detection value is a second value.. ... Realtek Semiconductor Corp

03/01/18 / #20180062377

Power supply device, detection circuit and power supply method thereof

A power supply device includes a power supply circuit, a detection circuit, and a control circuit. The power supply circuit is configured to output a supply voltage. ... Realtek Semiconductor Corp

03/01/18 / #20180059696

Voltage regulator with noise cancellation function

Disclosed is a voltage regulator. The voltage regulator includes a reference voltage circuit, a noise cancellation circuit, an error amplifier, a pass transistor and a voltage divider. ... Realtek Semiconductor Corp

02/22/18 / #20180054230

Signal transceiving circuit and receiving circuit control method

A transceiving circuit, which comprises: a transmitting circuit, configured to transmit a test signal; a receiving circuit, comprising a mixer configured to receive a plurality of predetermined dc bias voltage groups, wherein the receiving circuit generates a plurality of output signals according to the test signal while the mixer operates at the predetermined dc bias voltage groups; a frequency domain analyzing circuit, configured to transform the output signals to a plurality of frequency domain signals; and a dc bias voltage generating circuit, configured to generate a function according to the frequency domain signals and the predetermined bias voltage groups, and configured to generate a first dc bias voltage group to the mixer according to the function.. . ... Realtek Semiconductor Corp

02/22/18 / #20180054192

Phase interpolator

A phase interpolator includes differential pairs, a switching circuit, an output stage, and a correction circuit. The differential pairs generate a first signal and a second signal according to a first group of input signals and a second group of input signals. ... Realtek Semiconductor Corp

02/22/18 / #20180052506

Voltage and frequency scaling apparatus, system on chip and voltage and frequency scaling method

A voltage and frequency scaling apparatus includes a processor, at least one sensor and a controller. The at least one sensor is electrically coupled to the processor. ... Realtek Semiconductor Corp

02/08/18 / #20180040413

Semiconductor element

A semiconductor element includes a first spiral coil, a second spiral coil, a connecting section, a first guide segment, and a second guide segment. The first spiral coil is formed with a first end and a second end, and includes a first inner turn and a first outer turn. ... Realtek Semiconductor Corp

02/08/18 / #20180040412

Semiconductor element

A semiconductor element includes a first coil substantially located at a first plane; a second coil substantially located at the first plane; a connecting section that connects the first coil and the second coil; a third coil substantially located at a second plane different from the first plane; and a fourth coil substantially located at the second plane. The third coil and the first coil are connected through a through structure, and the fourth coil and the second coil are connected through a through structure. ... Realtek Semiconductor Corp

02/08/18 / #20180040411

Semiconductor element

A semiconductor element fabricated in a semiconductor structure and coupled to an application circuit through at least two connecting terminals. The semiconductor element includes a first spiral coil, a second spiral coil and a connecting portion. ... Realtek Semiconductor Corp

02/08/18 / #20180040105

Image-filtering method and image-filtering device

An image-filtering method that includes the steps outlined below is provided. Target image values and an input image having input pixel values are retrieved. ... Realtek Semiconductor Corp

02/01/18 / #20180032460

Usb type-c switching circuit

Disclosed is a usb type-c switching circuit configured for arranging a plurality of signals of a usb type-c connector. The usb type-c switching circuit can be used in products having displayport alternate mode, and includes a plurality of signal receivers/receivers, a plurality of series-parallel transforming circuits and a multiplexer. ... Realtek Semiconductor Corp

01/25/18 / #20180027586

Wireless communication system and associated wireless communication method and wireless device

A wireless communication system under a contention-based protocol comprises an access point and at least one station, wherein the station is arranged for wirelessly communicating with the access point under the contention-based protocol. In the operations of the wireless communication system, the access point broadcasts a polling usage sequence to assign a time slot for the station, and the station subsequently uses the assigned time slot to transmit a data packet to the access point.. ... Realtek Semiconductor Corp

01/04/18 / #20180006638

Differential switch circuit

A differential switch circuit includes: a first transistor having a first terminal coupled with a first input terminal, a second terminal coupled with a first output terminal, and a control terminal coupled with a switch signal receiving terminal; a second transistor having a first terminal coupled with a second input terminal, a second terminal coupled with a second output terminal, and a control terminal coupled with the switch signal receiving terminal; a central switch element positioned between the control terminals of the first and second transistors; and a switch element control circuit for controlling the central switch element based on a switch signal. When the switch signal turns on the first and second transistors, the switch element control circuit turns off the central switch element, and when the switch signal turns off the first and second transistors, the switch element control circuit turns on the central switch element.. ... Realtek Semiconductor Corp

01/04/18 / #20180003763

Operation voltage testing circuit and method

An operation voltage testing circuit includes a voltage generating circuit, a current-to-voltage conversion circuit, and a processing circuit. The voltage generating circuit is configured to generate a first voltage signal according to a first current signal, such that a photoelectric conversion unit generates a second current signal corresponding to the first voltage signal. ... Realtek Semiconductor Corp

12/28/17 / #20170374458

Signal processing device and signal processing method

A signal processing device includes an acoustic echo cancellation (aec) circuit, a blocking matrix circuit, a controller, a subtractor, and a filter. The aec circuit performs an aec operation based on a far-end signal and a first input signal to generate a processed signal. ... Realtek Semiconductor Corp

12/28/17 / #20170373770

Receiving circuit capable of performing i/q mismatch calibration based on external oscillating signal

A receiving circuit includes: a first receiving terminal for receiving a rf signal; a second receiving terminal for receiving an external oscillating signal generated by an external oscillator; a low-noise amplifier coupled with the first receiving terminal and the second receiving terminal and utilized for generating an output signal; a first switch element positioned between the second receiving terminal and the low-noise amplifier; an in-phase signal processing circuit for generating an in-phase detection signal based on the output signal; an quadrature signal processing circuit for generating an quadrature detection signal based on the output signal; and a calibration circuit for controlling the first switch element and capable of performing an i/q mismatch calibration operation according to the in-phase detection signal and the quadrature detection signal when the first switch element is turned on.. . ... Realtek Semiconductor Corp

12/28/17 / #20170373764

System for interference cancellation and method thereof

The invention relates to a system for interference cancellation and method thereof. The system includes a receiver, a transmitter, and a channel estimating and equalizing device. ... Realtek Semiconductor Corp

12/28/17 / #20170373059

Finfet and manufacturing method of the same

A finfet that includes a semiconductor substrate that has insulating areas, a fin structure, a gate dielectric layer, a gate electrode structure, a drain structure and a source structure is provided. The fin structure is disposed to extend on the semiconductor substrate between two insulating areas. ... Realtek Semiconductor Corp

12/21/17 / #20170367175

Electronic apparatus and heat dissipation and emi shielding structure thereof

An electronic apparatus and heat dissipation and emi shielding structure thereof are provided. The electronic apparatus includes a substrate, at least one chip disposed on the substrate, and the heat dissipation and emi shielding structure. ... Realtek Semiconductor Corp

12/21/17 / #20170365560

Patterned shield structure

A patterned shield structure applied to an integrated circuit (ic) is disposed between an inductor and a substrate of the integrated circuit. The patterned shield structure includes a center structure unit, a first patterned structure unit, and a second patterned structure unit. ... Realtek Semiconductor Corp

12/21/17 / #20170365257

Voice control system and method thereof

Disclosed is a voice control system and method thereof. The voice control system is used in an electronic device and works in a sleep mode and a working mode. ... Realtek Semiconductor Corp

12/21/17 / #20170364619

Simulation method for mixed-signal circuit system and related electronic device

A simulation method for a mixed-signal circuit system includes: detecting a plurality of registers and a clock signal included in the mixed-signal circuit system; performing a timing analysis converting operation upon a circuit block coupled between any two register of the plurality of registers to obtain a converted circuit system; and performing a static timing analysis operation upon the converted circuit system; wherein when the circuit block is convertible into a combinational circuit block, the timing analysis converting operation includes: converting the circuit block to the combinational circuit block, wherein the combinational circuit block is logic gate-level.. . ... Realtek Semiconductor Corp

12/14/17 / #20170359081

Successive approximation register analog-to-digital converter and analog-to-digital signal conversion method thereof

A successive approximation register (sar) analog-to-digital converter (adc) comprises a comparator for generating a comparison value according to an analog signal; a sar, coupled to the comparator, comprises n memory units, each memory unit storing a control value and the n control values being related to the comparison value, n being an integer greater than two; and a thermometer-coded dac, which generates the analog signal and is coupled to the comparator and the sar. The thermometer-coded dac comprises n capacitors. ... Realtek Semiconductor Corp

12/07/17 / #20170352362

Method and device of audio source separation

A method of audio source separation includes steps of applying a demixing matrix on a plurality of received signals to generate a plurality of separated results; performing a recognition operation on the plurality of separated results to generate a plurality of recognition scores; generating a constraint according to the plurality of recognition scores; and adjusting the demixing matrix according to the constraint; where the adjusted demixing matrix is applied to the plurality of received signals to generate a plurality of updated separated results from the plurality of received signals.. . ... Realtek Semiconductor Corp

12/07/17 / #20170351624

Solid state drive control device and method

The present invention discloses a solid state drive (ssd) control device including: a multi-interface compatible physical layer circuit operable to generate a physical layer output signal according to a serializer/deserializer (serdes) reception signal; an input/output (i/o) circuit operable to generate at least one terminal output signal according to signal variation of at least one terminal; and a processing circuit operable to make the solid state drive control device adapt to one of several interface types in accordance with the physical layer output signal and/or the at least one terminal output signal.. . ... Realtek Semiconductor Corp

11/30/17 / #20170344505

Data processing circuit and data processing method

This invention discloses a data processing circuit and a data processing method. The data processing method controls data transmission between a usb control unit and a usb interface, and includes the steps of: detecting a voltage of a configuration channel pin of the usb interface to generate a detection signal; determining whether the usb control unit and the usb interface are connected according to the detection signal; and performing an audio signal processing procedure when the usb control unit and the usb interface are not connected.. ... Realtek Semiconductor Corp

11/30/17 / #20170344390

Method for resetting a memory in a computer system

A method for resetting a memory in the computer system includes turning on the computer system, and a memory controller of the computer system executing a boot code to initialize the memory. After the memory controller executes the boot code, the memory controller updates a programmable initialization code according to the boot code to generate an updated programmable initialization code. ... Realtek Semiconductor Corp

11/23/17 / #20170337146

Memory device, memory controller, and control method thereof

A control method includes detecting an operational command to a first memory unit, interrupting an operational status of a second memory unit, asserting the operational command corresponding to the first memory unit, and recovering the operational status of the second memory unit. The first memory unit and the second memory unit correspond to the same channel.. ... Realtek Semiconductor Corp

11/23/17 / #20170336975

System and method for direct disk accessing

A computing system including a memory, a processor and a solid state disk is provided. The memory stores a disk access driver program. ... Realtek Semiconductor Corp

11/16/17 / #20170331475

Reference voltage buffer circuit

A reference voltage buffer circuit includes an operational amplifier, a capacitor switching module, a first transistor and a second transistor. The operational amplifier includes two input terminals and an output terminal, where the two input terminals receive an input reference voltage and a feedback voltage, respectively. ... Realtek Semiconductor Corp

11/16/17 / #20170331375

Voltage regulator having wide common voltage operating range and operating method thereof

The present disclosure illustrates a voltage regulator having wide common voltage operating range and an operating method thereof. The voltage regulator can solve a problem of the prior art that the excessive low or high common voltage easily causes the voltage regulator to operate abnormally. ... Realtek Semiconductor Corp

11/09/17 / #20170324239

Electro-static discharge protection circuit

This disclosure provides an esd protection circuit coupled to a first and a second terminals of a differential-pair circuit. The esd protection circuit includes: an esd sensing unit coupled to the first and the second terminals and sensing electrical changes at the first and the second terminals to generate a first trigger signal; and a first discharging unit coupled to the esd sensing unit and turning on a first discharging path according to the first trigger signal.. ... Realtek Semiconductor Corp

10/12/17 / #20170294356

Fin field effect transistor and manufacturing method thereof

A fin field-effect transistor is provided. The fin field-effect transistor includes a substrate, a fin structure, a gate-stacked structure, and an isolation structure. ... Realtek Semiconductor Corp

10/12/17 / #20170293313

Low dropout regulator with pmos power transistor

A low dropout regulator includes a pmos power transistor, a feedback network, an error amplifier and an active enhanced psrr unit. The pmos power transistor has a first end coupled to an input voltage, and a second end coupled to a load and the feedback network. ... Realtek Semiconductor Corp

09/21/17 / #20170272980

Wireless communication device and method of controlling same

This invention discloses a method for controlling a wireless communication device to transmit data packets. The method includes steps of: transmitting data packets; counting retry times of data packets in a predetermined time period and generating a result accordingly; comparing said result with a predetermined value and generating a comparison result accordingly; and reducing transmission time of data packets according to said comparison result.. ... Realtek Semiconductor Corp

09/21/17 / #20170272857

Device and method for calculating excursion of diaphragm of loudspeaker and method for controlling loudspeaker

A method for calculating excursion of a diaphragm of a loudspeaker is provided. The loudspeaker includes a diaphragm and is driven by a voltage signal. ... Realtek Semiconductor Corp

09/21/17 / #20170272378

Network communication apparatus and electronic apparatus

A network communication apparatus includes a transmission interface and a network interface controller. The transmission interface is coupled to an electronic apparatus, in which the electronic apparatus includes a non-volatile memory for storing a unique medium access control (mac) address that is authorized by a network. ... Realtek Semiconductor Corp

09/21/17 / #20170271234

Bonding wire-type heat sink structure for semiconductor devices

The present invention discloses a bonding-wire-type heat sink structure for semiconductor devices. An embodiment of the said bonding-wire-type heat sink structure comprises: a semiconductor substrate; a heat source formed on or included in the semiconductor substrate, said heat source including at least one hot spot; at least one heat conduction layer; at least one heat conductor connecting the at least one hot spot with the at least one heat conduction layer; at least one heat dissipation component in an electrically floating state; and at least one bonding wire connecting the at least one heat conduction layer with the at least one heat dissipation component, so as to transmit the heat of the heat source to the heat dissipation component.. ... Realtek Semiconductor Corp

09/21/17 / #20170271076

Single-ended inductor

A single-ended inductor comprises a first partial coil wound in a first direction; and a second partial coil wound in a second direction and adjoined the first partial coil; wherein, the second direction is opposite to the first direction to reduce the coupling of single-ended inductors and peripheral lines and reduce signal interference.. . ... Realtek Semiconductor Corp

09/14/17 / #20170265117

Method for handover procedure enhancement

A method for handover procedure enhancement performed by an access point (ap) of a wireless communication system is provided. The method includes connecting to a mobile device of the wireless communication system, detecting a connection status with the mobile device, and determining whether to transmit a disconnection signal to the mobile device according to the connection status, in which the disconnection signal is configured to request the mobile device to perform a handover procedure.. ... Realtek Semiconductor Corp

09/14/17 / #20170262006

Regulator

A regulator includes a driving circuit, an amplifying circuit and an overvoltage protection circuit. The driving circuit is configured to receive an input voltage and provide an output voltage through an output terminal. ... Realtek Semiconductor Corp

09/07/17 / #20170256037

Image de-noising method and apparatus thereof

An image de-noising method and an apparatus thereof are disclosed, which includes categorizing a pixel in a current frame into a first low-frequency pixel having a first weight and a first high-frequency pixel having a second weight; categorizing a previous pixel corresponding to the position of the pixel in a previous frame into a second low-frequency pixel having a third weight and a second high-frequency pixel having a fourth weight; adjusting the first weight and the third weight and calculating the weighted sum of the first low-frequency pixel and the second low-frequency pixel, to generate low-frequency pixel data; adjusting the second weight and the fourth weight and calculating the weighted sum of the first high-frequency pixel and the second high-frequency pixel, to generate high-frequency pixel data; and calculating the sum of the low-frequency pixel data and the high-frequency pixel data, to output the de-noised pixel.. . ... Realtek Semiconductor Corp

09/07/17 / #20170255449

Fast divider and fast division method thereof

Provided is a fast divider including an initial parameter setting unit and an arithmetic unit. The arithmetic unit is coupled to the initial parameter setting unit that receives a divisor and a dividend, and sets a plurality of initial parameters of a sequence according to the divisor and the dividend. ... Realtek Semiconductor Corp

08/31/17 / #20170249083

Electronic apparatus and control method thereof

An electronic apparatus includes a flash memory, a memory protection unit, a random access memory, and a central processing unit. The flash memory is configured to store at least one first application program/datum. ... Realtek Semiconductor Corp

08/17/17 / #20170237508

Device and method of handling soft information

A receiving device comprises a signal detection unit, a reliability unit coupled to the signal detection unit and a decoding unit coupled to the signal detection unit and the reliability unit. The signal detection unit is for receiving a plurality of compensated symbols on a plurality of subcarriers, to generate a plurality of soft information and a plurality demodulated symbols of the plurality of compensated symbols according to the plurality of compensated symbols. ... Realtek Semiconductor Corp

08/17/17 / #20170236791

Integrated circuit device

The instant disclosure provides an integrated circuit device including a transmission line which includes a first ground line and a signal line. The first ground line includes a first pad, a second pad and a first bonding wire that is a bond wire structure connecting the first pad and the second pad. ... Realtek Semiconductor Corp

08/03/17 / #20170223877

Patterned ground shield

A patterned ground shield includes a plurality of portions, a first connection member, a second connection member, and a third connection member. Each of the first connection member and the second connection member is coupled to any of two of the portions which are not adjacent to each other. ... Realtek Semiconductor Corp

08/03/17 / #20170223668

Method of cell search

A method of cell search for a mobile device in a wireless communication system is provided. The method comprises performing a reception timing detection procedure, to obtain at least a possible reception time for a primary synchronization signal (pss), performing a pss hypothesis procedure, to generate three frequency-domain pss sequences according to three root indexes each corresponding to a physical layer identity, and performing a secondary synchronization signal (sss) coherent detection procedure, to calculate a sss sequence according to each of the at least a possible reception time with the three frequency-domain pss sequences, to obtain a physical layer cell identity group corresponding to the sss sequence.. ... Realtek Semiconductor Corp

08/03/17 / #20170221584

Ssd controlling circuit for determining reusability of data block of ssd

A ssd controlling circuit includes: a read and write circuit for coupling with a ssd; and a flash memory controlling circuit coupled with the read and write circuit and configured to operably conduct following operations: reading data from a target data block of the ssd and conduct error checking and correction operation on retrieved data; if uncorrectable error occurs, moving data of the target data block to other blocks; erasing the target data block; writing test data into the target data block; after a predetermined time, reading test data from the target data block and conduct error checking and correction operation on retrieved data; recording error counts of the target data block; and determining the reusability of the target data block according to the recorded error counts.. . ... Realtek Semiconductor Corp

07/27/17 / #20170212796

Memory device and method for guaranteeing a mapping table

A memory device includes a memory module and a control module. The control module is coupled to the memory module and is configured to store data into the memory module according to a first mapping table. ... Realtek Semiconductor Corp

07/20/17 / #20170208233

Method for generating target gain value of wide dynamic range operation

A method for generating a target gain value of a wide dynamic range (wdr) operation is disclosed including: acquiring an average bright portion luminance corresponding to an average pixel luminance of a bright portion of a video image; acquiring an average dark portion luminance corresponding to an average pixel luminance of a dark portion of the video image; generating an initial gain value of the wdr operation according to a difference between the average bright portion luminance and the average dark portion luminance; and adjusting the initial gain value according to at least one of a color temperature and an exposure duration configuration value of the video image to generate the target gain value.. . ... Realtek Semiconductor Corp

07/20/17 / #20170207804

Noise variance estimation circuit and method for wireless communication

The present invention includes a noise variance estimation circuit for wireless communication. An embodiment of the noise variance estimation circuit includes: a first estimation unit operable to generate a first estimation signal according to a reception signal and a reference signal in which the reception signal is derived from the equivalent of the reference signal; a first noise reduction unit operable to generate a first noise reduction signal by performing a first noise reduction process to the first estimation signal; a second estimation unit operable to generate a second estimation signal according to the difference between the first estimation signal and the first noise reduction signal; and a second noise reduction unit operable to execute a noise reduction adjustment according to the second estimation signal and perform a second noise reduction process to the first estimation signal in which the noise reduction adjustment affects the second noise reduction process.. ... Realtek Semiconductor Corp

07/20/17 / #20170207794

Charge-redistribution successive approximation adc and control method thereof

A charge-redistribution successive approximation adc includes: a comparator, generating a comparison result; a register, storing a digital output code, determining a bit value of the digital output code according to the comparison value; a control unit, generating a control signal according to the digital output code; a plurality of first capacitors, each including a first end and a second end, the first end coupled to a first input end of the comparator; at least one second capacitor, including a third end and a fourth end, the third end coupled to the first input end of the comparator. Before the voltages of the second end of each first capacitor and the fourth end of the second capacitor are switched, the second end is coupled to a first voltage and the fourth end is coupled to a second voltage different from the first voltage.. ... Realtek Semiconductor Corp

07/20/17 / #20170207702

Feedback control circuit and method thereof

Disclosed are a feedback control circuit and a method thereof. The feedback control circuit includes a voltage comparator, a calibration voltage generator and processor. ... Realtek Semiconductor Corp

07/20/17 / #20170206641

Method for generating a pixel filtering boundary for use in auto white balance calibration

A method for generating a pixel filtering boundary required by the auto white balance (awb) calibration is proposed. The method includes: taking a specific color temperature reference point as a center and dividing a g/b-g/r color space into six color regions having different color component relationships; based on a saturation calculating approach of a hsv color space, respectively identifying six color boundaries in the six color regions to generate a specific hexagonal filtering boundary, so that each color boundary has a predetermined saturation difference with the specific color temperature reference point; adopting the approach for generating the specific hexagonal filtering boundary to respectively identify multiple hexagonal filtering boundaries corresponding to other color temperature reference points; generating an enveloping boundary as a pixel filtering boundary based on the specific hexagonal filtering boundary and the multiple hexagonal filtering boundaries.. ... Realtek Semiconductor Corp

07/13/17 / #20170200547

Integrated inductor structure

An 8-shaped integrated inductor includes a first terminal; a second terminal; a third terminal; a bridging structure that includes a first metal segment and a second metal segment, the first metal segment and the second metal segment being disposed in different layers of a semiconductor structure and partially overlapping; a first sensing unit employing the first terminal and the third terminal as its two terminals and including the first metal segment; and a second sensing unit employing the second terminal and the third terminal as its two terminals and including the second metal segment and a third metal segment. The third metal segment is disposed at a metal layer different from the second metal segment and conductively connecting other metal segments of the second sensing unit without crossing the metal segments of the first sensing unit.. ... Realtek Semiconductor Corp

07/13/17 / #20170199813

Weighting-type data relocation control device and method

The present disclosure provides a weighting-type data relocation control device for controlling data relocation of a non-volatile memory which includes used blocks and unused blocks. Each used block is associated with a first parameter and a second parameter. ... Realtek Semiconductor Corp

07/13/17 / #20170199539

Voltage selecting circuit

A voltage selecting circuit includes: a first transistor, having a first terminal coupled with a first input terminal and having a second terminal coupled with a voltage output terminal; a second transistor, having a first terminal coupled with a second input terminal and having a second terminal coupled with the voltage output terminal; a first resistor positioned between the first input terminal and a control terminal of the second transistor; a second resistor positioned between the second input terminal and a control terminal of the first transistor; a first current adjusting circuit coupled with the control terminal of the first transistor; a second current adjusting circuit coupled with the control terminal of the second transistor; a comparison circuit for comparing voltages at the first and second input terminals; and a control circuit configured to operably control the first current adjusting circuit and the second current adjusting circuit.. . ... Realtek Semiconductor Corp

07/06/17 / #20170194991

Transmitter with compensating mechanism of pulling effect

A transmitter with compensating mechanism of pulling effect includes a correction unit and an output unit. The correction unit includes a memory circuit and a first address generation circuit. ... Realtek Semiconductor Corp

07/06/17 / #20170194990

Transmitter with compensating mechanism of pulling effect

A transmitter with compensating mechanism of pulling effect includes an output unit and a correction unit. The output unit mixes a first correction signal and a second correction signal according to an oscillating signal to generate a modulated signal, and to amplify the modulated signal to generate a first output signal. ... Realtek Semiconductor Corp

06/29/17 / #20170187516

Half-rate clock data recovery circuit

A half-rate clock data recovery circuit includes: a voltage-controlled oscillator (vco) for generating a data sampling clock and an edge sampling clock according to a control voltage; an adjusting circuit for dynamically controlling the vco to adjust the phase difference between the data sampling clock and the edge sampling clock to be different from 90 degrees in multiple test periods; and a control circuit for instructing the adjusting circuit to respectively utilize different control value combinations to control the vco in the multiple test periods, and for recording multiple recovered-signal quality indicators respectively corresponding to the multiple test periods. Afterwards, the control circuit instructs the adjusting circuit to utilize a control value combination corresponding to the best quality indicator among the multiple recovered-signal quality indicators to control the vco.. ... Realtek Semiconductor Corp

06/29/17 / #20170185378

Division operation apparatus and method of the same

A division operation apparatus is provided. The division operation apparatus includes a memory, a non-zero bit detection circuit, a mapping calculation circuit, a look-up circuit, a compensation circuit and a multiplication circuit. ... Realtek Semiconductor Corp

06/22/17 / #20170180329

Receiving apparatus and packet processing method thereof

The present disclosure provides a receiving apparatus for preprocessing at least one segment data packet to a data packet. The receiving apparatus includes a packet parser, a data memory, a decrypt engine, a transmission engine, a header processing unit and a controller. ... Realtek Semiconductor Corp

06/22/17 / #20170180112

Clock and data recovery apparatus and method of the same

An electronic apparatus including a pll unit to an original clock signal, a pair of phase interpolators, a sampler, a phase detector, a control unit and a loop filter is provided. The phase interpolators receive the original clock signal and generate a reference clock signal and an auxiliary clock signal offset by 90 degrees having transition edges. ... Realtek Semiconductor Corp

06/22/17 / #20170179949

Sampling circuit and sampling method

A sampling circuit for sampling an input voltage and generating an output voltage, comprising six switches, a capacitor and a voltage buffer. The first switch has a control terminal and makes the output voltage equal to the input voltage when switching on. ... Realtek Semiconductor Corp

06/22/17 / #20170179942

Transmission circuit with leakage prevention circuit

A transmission circuit includes: a first transistor, a first current source, a third transistor. The first transistor has a source terminal coupled to a first reference voltage terminal of the transmission circuit and a drain terminal coupled to a first output terminal of the transmission circuit. ... Realtek Semiconductor Corp

06/22/17 / #20170176522

Debugging method executed via scan chain for scan test and related circuitry system

A circuit debugging method includes: utilizing a debugging circuit to determine an operating status of a specific circuit to generate a result; utilizing a register located in a scan chain path to store the result, wherein the scan chain path is arranged for a scan test; and utilizing an output pad located in the scan chain path to output the result, wherein the result is arranged to be indicative of the operating status of the specific circuit.. . ... Realtek Semiconductor Corp

06/15/17 / #20170169939

Inductor structure

An inductor structure includes a first curve metal component, a second curve metal component, and a connection component. The first curve metal component is disposed on a layer. ... Realtek Semiconductor Corp

06/08/17 / #20170162318

Helical stacked integrated inductor and transformer

A helical stacked integrated inductor formed by a first inducing unit and a second inducing unit includes a first helical coil and a second helical coil. The first helical coil is substantially located at a first plane and includes a first outer turn and a first inner turn. ... Realtek Semiconductor Corp

06/08/17 / #20170161227

Universal serial bus converter circuit and related method

A universal serial bus (usb) converter circuit includes: a high definition multimedia interface (hdmi) transceiver circuit, a signal converting circuit and a usb receptacle, wherein the hdmi transceiver circuit arranged to transmit/receive a hdmi signal, wherein the hdmi transceiver circuit includes at least a video signal and a plurality of processing signals; the signal converting circuit coupled to the hdmi transceiver circuit is arranged to execute a converting operation to processing a conversion between the plurality of processing signals and a usb signal; and the usb receptacle coupled to the signal converting circuit includes a usb signal pin and a set of video signal pin, wherein the usb signal is transmitted/received with an electronic device through the usb pin, and the video signal is transmitted/received with the electronic device through the set of video signal pin.. . ... Realtek Semiconductor Corp

06/01/17 / #20170155591

Network device and controlling method thereof

A network device includes a packet classifying unit and a packet processing unit. The packet processing unit includes processors coupled in series. ... Realtek Semiconductor Corp

05/11/17 / #20170134036

Method and circuit for testing successive approximation adc

This invention discloses a method and a circuit for testing a successive approximation adc. The test method includes the following steps: receiving a plurality of digital output codes of a sar adc; counting the number of odd numbers and the number of even numbers of the digital output codes; and determining whether an error occurs in the sar adc based on the number of odd numbers and the number of even numbers.. ... Realtek Semiconductor Corp

05/04/17 / #20170127429

Wireless communication method and device

The present invention discloses a wireless communication method carried out by a wireless transmitter capable of offering an unintended wireless device a chance of starting or proceeding with a transmission procedure during a transmission duration of the wireless transmitter. An embodiment of said wireless communication method comprises the following steps: preparing a packet carrying an indication of a clear channel assessment (cca) threshold level for an unintended wireless device to decide whether to execute a transmission procedure; and transmitting the packet to an intended wireless device under a protocol by which the unintended wireless device is expected to abide.. ... Realtek Semiconductor Corp

05/04/17 / #20170126243

Successive approximation register (sar) analog-to-digital converting circuit and method thereof

A successive approximation register (sar) analog-to-digital converting method includes executing a sampling operation and a comparing operation according to a conversion clock by using an sar analog-to-digital converter (adc) to convert an analog input signal into a digital output signal, and resetting a sampling and digital-to-analog converting circuit of the sar adc when a sar procedure of the comparing operation is completed.. . ... Realtek Semiconductor Corp

05/04/17 / #20170125160

Integrated circuit

An integrated circuit includes a first inductor, a second inductor, and a blocker. The first inductor is disposed in a metal layer, and the second is disposed in the metal layer. ... Realtek Semiconductor Corp

04/27/17 / #20170118314

Transmission apparatus and transmission method thereof

A transmission apparatus for preprocessing a data packet stored in a system memory to generate at least one segment data packet is provided. The transmission apparatus includes a transmission engine and a data memory. ... Realtek Semiconductor Corp

04/27/17 / #20170117079

Helical stacked integrated transformer and inductor

A helical stacked integrated transformer formed by a first inductor and a second inductor includes a first helical coil that has a first outer coil and a first inner coil, a second helical coil that shares an overlapped region with the first helical coil and has a second outer coil and a second inner coil, and a connection structure that connects the first helical coil and the second helical coil. The first inner coil is located inside the first outer coil and the second inner coil is located inside the second outer coil. ... Realtek Semiconductor Corp

04/20/17 / #20170111204

Communication receiving end and auto gain control method thereof

A communication receiving end for receiving an inputted signal includes a signal amplifier for adjusting the inputted signal according to a first predetermined gain or a second predetermined gain to generate a first adjusted signal; an analog-to-digital converter (adc), coupled to the signal amplifier, for converting the first adjusted signal; and a control unit, coupled to the adc, for determining whether the adc is saturated or not according to an output of the adc. The first predetermined gain is associated with a first inputted signal power processed by the communication receiving end and a quantization noise of the adc. ... Realtek Semiconductor Corp

04/20/17 / #20170110960

Charge-pump and dynamic charge-pump device including the same

Disclosed is a charge-pump and a dynamic charge-pump device including the same. By switching the plurality of voltage sources, the output voltage of the charge-pump can be compensated, and changed output voltage of the charge pump is utilized to adjust a voltage as power source or ground source of a loading circuit. ... Realtek Semiconductor Corp

04/20/17 / #20170109303

Data output dispatching device and method

The present invention discloses a data output dispatching device and method capable of reducing the probability of packets from the same queue being transmitted sequentially. An embodiment of the method comprises the following steps: providing a plurality of buffers capable of storing the data of q queues respectively while each queue is associated with a weighting and the sum ws of all the weightings is between 2(m-1) and 2m and not greater than a maximum sum in which q is an integer greater than 1, m is a positive integer and n is an integer not less than m; providing a binary bit reverse count value not greater than 2n; and assigning a token to one of the q queues for data output according to the reverse count value.. ... Realtek Semiconductor Corp

04/06/17 / #20170099142

Decryption device, method, and circuit

A decryption method includes receiving encrypted data, in which the encrypted data is encrypted by an rsa public key; and performing at least one multiplication operation and at least one square operation according to an rsa private key and the encrypted data to acquire decrypted data. A false square operation is performed in performing one of the at least one multiplication operation, or a false multiplication operation is performed in performing one of the at least one square operation.. ... Realtek Semiconductor Corp

04/06/17 / #20170099141

Decryption device, method, and circuit

A decryption method includes receiving encrypted data, in which the encrypted data is encrypted according to an rsa public key; and performing a plurality of operations in sequence according to an rsa private key and the encrypted data to acquire a decrypted data. The operations include a plurality of decryption operations and at least one false operation. ... Realtek Semiconductor Corp

04/06/17 / #20170098500

Integrated inductor structure and integrated transformer structure

An integrated inductor structure includes a first spiral coil, a second spiral coil and a connection metal segment. The first spiral coil includes a plurality of metal segments, a bridging segment and first to fourth terminals. ... Realtek Semiconductor Corp

03/30/17 / #20170090771

Data backup system and method thereof

A data backup method for backing up target data, through a driver module, from a first storage device to a second storage device is disclosed. The first storage device includes a first storage unit that stores the target data, and a first control unit that accesses the first storage unit based on a first logical-to-physical mapping table. ... Realtek Semiconductor Corp

03/23/17 / #20170083235

Device capable of using external volatile memory and device capable of releasing internal volatile memory

The present invention includes a device capable of using an external volatile memory. An embodiment of the device comprises: a storage controller operable to control the data access of a non-volatile storage medium and communicate with an external device, the external device controlling an external volatile memory. ... Realtek Semiconductor Corp

03/16/17 / #20170077086

Electrostatic discharge protection element

An electrostatic discharge protection element is provided, which leads out the electrostatic discharge current between an internal circuit and an input/output terminal in the event of electrostatic discharge. The electrostatic discharge protection element includes an i/o pad, conductor, and a gap structure. ... Realtek Semiconductor Corp

03/16/17 / #20170076857

Shielding structure for integrated inductor/transformer

Disclosed is a shielding structure for an integrated inductor/transformer, configured under the integrated inductor or the transformer and upon a substrate. The shielding structure comprises conductive units, first connecting portions, via holes, a second connecting portion and a grounding portion. ... Realtek Semiconductor Corp

03/09/17 / #20170069068

Wide dynamic range imaging method

A wide dynamic range imaging method provided by an exemplary embodiment of the present disclosure has steps as follows. According to a first difference value between a light-part average luminance value and a dark-part average luminance value of an image, a first enhancing value is obtained. ... Realtek Semiconductor Corp

03/02/17 / #20170063688

Communication device and method applicable to stacking communication system

The present invention discloses a communication device applicable to a stacking communication system. The communication device comprises: a plurality of communication ports operable to constitute a part of an internal transmission path of the stacking communication system; a storage unit operable to store a reference path table; and a controller operable to receive a frame and then determine whether the frame should be forwarded, wherein if the frame should be forwarded, the controller is operable to choose one among the communication ports according to the reference path table and the content of the frame to forward the frame or a frame derived therefrom to the internal transmission path of the stacking communication system.. ... Realtek Semiconductor Corp

03/02/17 / #20170063321

Common mode noise restrainer applicable to ethernet

The present invention discloses a common mode noise restrainer applicable to ethernet, comprising: a circuit side configured to connect with an integrated circuit; a cable side configured to connect with a cable; a plurality of transformers set between the circuit side and the cable side; and a plurality of common mode chokes composed of a first part of the common mode chokes and a second part of the common mode chokes in which the first part of the common mode chokes is set between the circuit side and the plurality of transformers and the second part of the common mode chokes is set between the cable side and the plurality of transformers while the one or more transformer(s) connected with the first part of the common mode chokes are not identical to the one or more transformer(s) connected with the second part of the common mode chokes.. . ... Realtek Semiconductor Corp

02/16/17 / #20170046169

Storage device, booting procedure acceleration method and storage controller

The present disclosure provides a storage device for accelerating a booting procedure. The storage device includes a non-volatile storage medium, a volatile cache memory and a storage controller. ... Realtek Semiconductor Corp

02/16/17 / #20170045621

Satellite positioning device and electronic device

The present disclosure provides a satellite positioning device which includes a first short-distance transceiver module and a first satellite positioning device. The first short-distance transceiver module is configured to wirelessly connect to a second short-distance transceiver module of an electronic device, and to receive satellite positioning information from the second short-distance transceiver module. ... Realtek Semiconductor Corp

01/19/17 / #20170019077

Driver

A driver suitable for driving a power amplifier is provided. The driver includes a voltage buffer circuit and a voltage transforming circuit. ... Realtek Semiconductor Corp

01/12/17 / #20170012601

Structures of planar transformer and balanced-to-unbalanced transformer

The present invention discloses structures of a planar transformer and a balanced-to-unbalanced transformer. The structure of the planar transformer includes a first planar coil, a second planar coil and a third planar coil. ... Realtek Semiconductor Corp

01/12/17 / #20170011001

Usb control circuit with built-in signal repeater circuit

A usb control circuit of a usb hub device includes: an upstream mac-layer circuit; a downstream mac-layer circuit; a first usb phy-layer circuit; a second usb phy-layer circuit; a first switch circuit for communicating data with an upstream port through the first usb phy-layer circuit; a second switch circuit for communicating data with a downstream port through the second usb phy-layer circuit; a control signal transmission interface; a signal repeater circuit; and a control unit configured to operably control the first switch circuit and the second switch circuit through the control signal transmission interface, so that the first switch circuit selectively couples the upstream mac-layer circuit or the signal repeater circuit with the first usb phy-layer circuit, while the second switch circuit selectively couples the downstream mac-layer circuit or the signal repeater circuit with the second usb phy-layer circuit.. . ... Realtek Semiconductor Corp

01/12/17 / #20170010997

Usb control circuit with built-in bypass function

A usb hub device includes an upstream port and a downstream port. A usb control circuit of the usb control circuit includes an upstream interface; a downstream interface; a first switch circuit for coupling with the upstream port; a second switch circuit for coupling with the downstream port; a control signal transmission interface coupled with the first switch circuit and the second switch circuit; and a control unit, coupled with the control signal transmission interface, configured to operably control the first switch circuit and the second switch circuit through the control signal transmission interface, so that the first switch circuit selectively couples one of the upstream interface and the second switch circuit with the upstream port, while the second switch circuit selectively couples one of the downstream interface and the first switch circuit with the downstream port.. ... Realtek Semiconductor Corp








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