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Mstar Semiconductor Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Mstar Semiconductor Inc-related inventors


 new patent  Operating mode distinguishing method, touch point locating method and touch control circuit

An operating mode distinguishing method, a touch point determining method and a touch control circuit are provided. It is determined whether an underwater mode is entered according to a self capacitance value and a mutual capacitance value. ... Mstar Semiconductor Inc

Circuit for controlling image capturing device and associated method

A method for controlling an image capturing device includes: calculating luminance data of a first image to generate a plurality of first characteristic values, and calculating luminance data of a second image to generate a plurality of second characteristic values; calculating a plurality of motion values of a plurality of blocks of the second image according to the luminance data of the first image and the luminance data of the second image; determining a plurality of ratio parameters corresponding to the blocks of the second image according to the motion values; generating a plurality of adjusted second characteristic values according to the ratio parameters, the second characteristic values and the first characteristic values; and generating an adjustment signal for controlling the image capturing device according to the adjusted second characteristic values.. . ... Mstar Semiconductor Inc

Transmitting circuit and associated signal transmitting method

A transmitting circuit is disposed in an electronic device, which performs signal transmission with another electronic device through an ethernet over coax (eoc) system. The transmitting circuit includes a control circuit, a gain adjusting circuit and an output circuit. ... Mstar Semiconductor Inc

Image compensation method applied to display and associated control circuit

A control circuit applied to a display includes an adjustment parameter generating circuit, an adjustment circuit, a compensation circuit, an image detail compensating circuit and an output circuit. The adjustment parameter generating circuit determines an adjustment parameter according to a backlight intensity corresponding to a pixel in a frame. ... Mstar Semiconductor Inc

Error limiting method, error limiter and digital receiving circuit

An error limiting method includes: receiving a first signal and a first error signal, wherein the first error signal is associated with the first signal and a first symbol corresponding to the first signal; calculating a first magnitude value of the first signal; and decreasing an error energy of the first error signal according to the first magnitude value of the first signal to generate a second error signal, and outputting the second error signal to an error feedback circuit.. . ... Mstar Semiconductor Inc

Decoding method for convolutional code decoding device in communication system and associated determination module

A decoding method for a convolutional code decoding device in a communication system includes receiving convolutional code data, determining the number of times of iteration, and performing an iterative decoding process for the number of times of iteration to decode the convolutional code data.. . ... Mstar Semiconductor Inc

Image processing apparatus and image processing method

An image processing apparatus includes an analyzing circuit, a detecting circuit, a determining circuit, and a converting circuit. The analyzing circuit analyzes an image to obtain a default luminance of the image. ... Mstar Semiconductor Inc

Fingerprint sensor and fingerprint recognition method thereof

A fingerprint sensor and a fingerprint recognition method thereof are provided. A fingerprint is detected by a plurality of unit groups to generate a plurality of first signal values. ... Mstar Semiconductor Inc

Signal processing device and signal processing method of television receiving end

A signal processing device of a television receiving end is provided. The television receiving end includes a tuner, which receives a television signal including a preamble signal. ... Mstar Semiconductor Inc

Echo detection circuit and method for multi-carrier system

An echo detection circuit for a multi-carrier system includes a memory, a threshold generating circuit and an echo determining circuit. The memory stores a plurality of channel impulse response values of the multi-channel system. ... Mstar Semiconductor Inc

Method and device for symbol decision and digital receiver

A symbol decision method includes: storing a look-up table (lut) to a symbol decision circuit; receiving a first signal, and generating a coordinate signal set corresponding to the first signal according to the first signal, wherein the coordinate signal set is located in a first decision region; and reading the lut according to the coordinate signal set to output a first symbol corresponding to the first signal, wherein the first symbol is a first constellation point corresponding to the first decision region.. . ... Mstar Semiconductor Inc

Eye pattern measurement apparatus, and clock and data recovery system and method of the same

An eye pattern measurement apparatus includes: an eye pattern monitoring device, performing first sampling on a data signal by sequentially using scan clock signals having different phases to obtain a plurality of scan data signals; and a data aligning device, connected to the eye pattern monitoring device, receiving the scan data signals outputted by the eye pattern monitoring device, performing phase-shift on the first clock signal to generate a synchronization clock signal, synchronizing the scan data signals with the synchronization clock signal, and outputting the synchronized scan data signals.. . ... Mstar Semiconductor Inc

Text-to-speech method and system

A text-to-speech method includes: receiving a text series, and generating a plurality of phonemes corresponding to the text series, wherein the phonemes form a phoneme series; inserting a pause phoneme into the phoneme series; dividing the phoneme series and the pause phoneme into a plurality of phoneme sub-series by using the pause phoneme as a dividing point, and generating a plurality of speech segments according to the phoneme sub-series; and performing a speech synthesis operation individually on the speech segments to generate a plurality of speech outputs corresponding to the plurality of speech segments. The pause phoneme is a last phoneme of the phoneme sub-series in which the pause phoneme locates.. ... Mstar Semiconductor Inc

Processing method and electronic apparatus for digital signal

A processing method and electronic apparatus for a digital signal are provided. The method includes: detecting the quality of a first eye in an eye diagram of the digital signal; equalizing the digital signal; detecting the quality of a second eye in the eye diagram of the equalized digital signal; determining whether the quality of the second eye superior to the quality of the first eye by a predetermined threshold; and if so, outputting the digital signal, or else again equalizing and performing subsequent steps on the auto-compensated digital signal. ... Mstar Semiconductor Inc

03/15/18 / #20180077447

De-interleaving circuit and de-interleaving method

A de-interleaving circuit that performs a time de-interleaving process on an interleaved block of an interleave signal includes: an input buffer, buffering multiple information units included in a time interleaved block; a writing address generator, generating multiple writing addresses according to a predetermined rule to write the information units buffered in the input buffer to a memory; a reading address generator, generating multiple reading addresses according to the predetermined rule to read the information units from the memory; and an output buffer, buffering the information units read from the memory. The information units are stored in multiple tiles of the memory. ... Mstar Semiconductor Inc

03/15/18 / #20180076991

Apparatus and method for estimating carrier frequency offset

An apparatus for estimating carrier frequency offset includes a notch frequency setting circuit, n notch filters, an mth power circuit, a spectrum generating circuit, a peak frequency determining circuit, a comparing circuit, and a frequency offset determining circuit. The notch frequency setting circuit sets different notch-frequencies for the notch filters, which generate n filtered signals by filtering an input signal. ... Mstar Semiconductor Inc

03/15/18 / #20180074955

Time de-interleaving circuit and time de-interleaving method

A time de-interleaving circuit is located at a signal receiver of a communication system to perform a time de-interleaving process on an interleaved signal. The interleaved signal includes a plurality of information units, which include a plurality of data units and a plurality of common units. ... Mstar Semiconductor Inc

03/15/18 / #20180074617

In-cell touch display panel

An in-cell touch display panel includes a substrate, a semiconductor stack, a transparent layer, an insulation layer, and a metal layer. The semiconductor stack is disposed on the substrate, and includes a plurality of pixel control elements. ... Mstar Semiconductor Inc

03/08/18 / #20180067898

Device and method for handling symbol rate estimation and interference

A communication device includes: a receiving circuit, receiving a plurality of time-domain signals; a transforming circuit, coupled to the receiving circuit, transforming the plurality of time-domain signals to a plurality of frequency-domain signals according to a time-frequency transform operation; a magnitude circuit, coupled to the transforming circuit, performing an absolute value operation on the plurality of frequency-domain signals to generate a plurality of output signals; and a selecting circuit, coupled to the magnitude circuit, selecting a maximum signal that satisfies a check condition from the plurality of output signals.. . ... Mstar Semiconductor Inc

03/08/18 / #20180067583

Mutual capacitive touch panel

A mutual capacitive touch panel includes at least one touch sensing group extending along a first direction. The touch sensing group includes a plurality of first electrodes, a plurality of second electrodes, a plurality of third electrodes and a plurality of fourth electrodes. ... Mstar Semiconductor Inc

03/01/18 / #20180063404

Image processing method applied to a display and associated circuit

A circuit applied to a playback device includes an image format determining circuit, a control circuit, an image processing module and a blending circuit. The image format determining circuit receives an image signal and determines whether the format of the image signal is a standard dynamic range (sdr) or a high dynamic range (hdr) to generate a determination result. ... Mstar Semiconductor Inc

03/01/18 / #20180062627

Frequency adjusting device and method for adjusting frequency

A frequency adjusting device includes a voltage droop detector and a frequency divider. The voltage droop detector compares a supply voltage with a lower threshold voltage to output a comparison result. ... Mstar Semiconductor Inc

03/01/18 / #20180059823

Mutual capacitive force sensor and touch display device with force sensing function and force sensing method thereof

A touch display device with a force sensing function is provided. The touch display device includes a touch display panel, a backlight circuit and a force sensor. ... Mstar Semiconductor Inc

02/22/18 / #20180054626

Decoding method and decoding apparatus for avs system

A method for decoding audio/video data in an audio video coding standard (avs) system is provided. A predetermined upper limit of an offset shift, greater than zero and smaller than an upper limit of a range shift, is provided. ... Mstar Semiconductor Inc

02/22/18 / #20180054594

Device applied to display and associated image display method

A device applied to a display includes a receiving circuit, a detecting circuit, an image processing circuit and a response time enhancing circuit. The receiving circuit receives an input image signal. ... Mstar Semiconductor Inc

02/22/18 / #20180054593

Display control device and method for controlling the same

A display control device includes a detector, a frequency adjusting signal generator, a clock generator and an output timing generator. The detector compares an input field reference signal with an output field reference signal to determine a time difference signal. ... Mstar Semiconductor Inc

02/22/18 / #20180054344

Apparatus and method for estimating carrier frequency offset

An apparatus for estimating carrier frequency offset includes an mth-power circuit, a spectrum generating circuit, a spectrum adjusting circuit, a peak frequency determining circuit and a frequency offset determining circuit. The mth-power circuit performs an mth-power calculation on an input signal to generate an mth-power calculation result. ... Mstar Semiconductor Inc

02/22/18 / #20180052773

Memory managing method and apparatus associated with cache in image processing system

A memory managing method for a cache including multiple storage regions is provided. Each of the storage regions includes multiple cache lines, and corresponds to multiple image blocks included in an original image frame. ... Mstar Semiconductor Inc

02/15/18 / #20180048930

Multimedia processing system and control method thereof

A multimedia processing system for processing a plurality of transport streams of different digital video broadcasting standards includes: a configuration module, generating a control signal; a descrambler, receiving a single transport stream and the control signal to generate header information, data information and padding information; a data processing module, generating an input stream synchronization signal and transport stream packet processed information according to the output of the descrambler; a timing control module, receiving the padding information, the input transport stream synchronization signal and the control signal to generate a time-to-output signal and a packet interval signal; and an output module, receiving the time-to-output signal, the packet interval signal, the transport stream packet processed information and the control signal to generate output stream information.. . ... Mstar Semiconductor Inc

02/15/18 / #20180047370

Display controller and operation method thereof

A display controller includes a plurality of memories and an enable control circuit. Each of the memories stores one set of extended display identification data (edid). ... Mstar Semiconductor Inc

02/15/18 / #20180047132

Display controller and operation method thereof

A display controller includes a first memory, a second memory and an address controller. The first memory stores first extended display identification data (edid). ... Mstar Semiconductor Inc

02/01/18 / #20180035071

Circuit applied to television and associated image display method

A circuit applied to a television is provided. The television includes a memory and a display panel. ... Mstar Semiconductor Inc

02/01/18 / #20180034731

Device and method for handling effective path of channel impulse response

A communication device includes: a receiving circuit, receiving a plurality of pilot signals; a channel estimating circuit, coupled to the receiving circuit, estimating a channel frequency response according to the pilot signals; a transforming circuit, coupled to the channel estimating circuit, transforming the channel frequency response to a channel impulse response according to a time-frequency transform operation; a calculating circuit, coupled to the transforming circuit, determining a threshold according to a maximum path intensity of a plurality of paths of the channel impulse response, a signal-to-noise ratio (snr) and a predetermined constant; and a selecting circuit, coupled to the calculating circuit, determining at least one effective path from the paths of the channel impulse response according to the threshold.. . ... Mstar Semiconductor Inc

01/25/18 / #20180027277

Audiovisual signal processing circuit and associated television signal processing method

A television signal processing circuit includes an audio/video (av) signal generating circuit, an intermediate frequency (if) mixer, a first filter, a radio-frequency (rf) mixer, a second filter and a digital-to-analog converter (dac). The av signal generator generates a digital av signal. ... Mstar Semiconductor Inc

01/18/18 / #20180018976

Stereo-phonic frequency modulation receiver and method for separating dual sound channels

A stereo-phonic frequency modulation receiver includes: a frequency modulation demodulation circuit, receiving a reception signal, and generating a demodulated signal according to the reception signal; a frequency-division demultiplexer, generating a sum signal, a difference signal and a pilot amplitude signal according to the demodulated signal; a dual sound channel separation circuit, generating a left-channel output signal and a right-channel output signal according to the sum signal and a weakened difference signal; and a weakening circuit, weakening the difference signal according to the pilot amplitude signal or a signal-to-noise ratio (snr) to generate the weakened difference signal.. . ... Mstar Semiconductor Inc

01/04/18 / #20180006800

Frequency modulation receiver and frequency modulation receiving method

A frequency modulation receiver includes a frequency modulation demodulation circuit that generates a first signal, and a phase locked loop (pll) circuit coupled to the frequency modulation demodulation circuit to receive the first signal. The pll circuit includes: a voltage-controlled oscillator (vco), generating an oscillation output signal according to a filtered output signal; a phase detector, coupled to the vco, generating a phase signal according to the oscillation output signal and the first signal; and a proportional-integral-derivative (pid) filter, coupled to the vco and the phase detector, receiving the phase signal and generating the filtered output signal to the vco.. ... Mstar Semiconductor Inc

01/04/18 / #20180005599

Backlight control and image compensation method applied to display and associated control method

A control method of a display includes a statistics circuit, a backlight determining circuit and a backlight control circuit. The display includes a backlight module having a maximum power. ... Mstar Semiconductor Inc

12/28/17 / #20170374242

Hdmi receiving circuit and method for determining transmission mode

A high-definition multimedia interface (hdmi) receiving circuit receives an image signal and an input clock transmitted via hdmi and generates output data. The hdmi receiving circuit includes: a sampling circuit, sampling the image signal according to a transmission mode and the input clock to generate the output data; a data comparison circuit, coupled to the sampling circuit, determining whether the output data includes predetermined data to generate a determination result; and a control circuit, coupled to the sampling circuit and the data comparison circuit, determining the transmission mode according to the determination result.. ... Mstar Semiconductor Inc

12/28/17 / #20170373798

Decoding apparatus and decoding method including error correction process

A decoding apparatus includes an input power estimating circuit, an error correction decoder and a controller. The input power estimating circuit generates multiple estimated input powers for multiple sets of data included in a packet that needs to be corrected, and calculates respective power differences between the multiple estimated input powers and a reference power. ... Mstar Semiconductor Inc

12/21/17 / #20170366283

Method and device for detecting notch band

A method for detecting a notch band is applied to a multicarrier communication system that operates in a wideband. The method includes: receiving a received signal, and generating a plurality of frequency-domain signals according to the received signal; performing a magnitude operation on the frequency-domain signals to obtain a plurality of magnitude values; determining a plurality of ratios of a first magnitude set among the magnitude values to a second magnitude set among the magnitude value to determine whether the received signal contains a notch band.. ... Mstar Semiconductor Inc

12/14/17 / #20170359208

Time de-interleaving circuit and method thereof

A time de-interleaving circuit and a time de-interleaving method perform a time de-interleaving process through writing and reading a plurality of sets of time interleaved data into and from a first memory and a second memory. The time de-interleaving method includes: selecting a set of first time interleaved data and a set of second time interleaved data from the plurality of sets of time interleaved data, the set of first time interleaved data and the set of second time interleaved data having the same delay length; writing the set of first time interleaved data into the first memory; and writing the set of second time interleaved data into the second memory. ... Mstar Semiconductor Inc

12/07/17 / #20170353728

Method for compressing image data and image data compressing system

A method for compressing image data is provided. The image data includes a file to be compressed, which includes n blocks to be compressed. ... Mstar Semiconductor Inc

12/07/17 / #20170353201

Echo cancellation circuit, receiver applied to digital communication system and echo cancellation method

An echo cancellation circuit includes: a delay module, receiving an input signal and delaying the input signal to generate a plurality of delayed signals; a multiplication module, multiplying the plurality of delayed signals by a plurality of coefficients to generate a plurality of multiplication results, respectively; a summing circuit, performing a summation on the plurality of multiplication results to generate a summation signal; a subtraction circuit, receiving a first delay signal and generating a subtracted signal according to the first delayed signal and the summation signal; and a coefficient calculating circuit, calculating the plurality of coefficients according to the subtracted signal. The echo cancellation circuit outputs an output signal as the subtracted signal.. ... Mstar Semiconductor Inc

11/30/17 / #20170347107

Bit allocation method and video encoding device

A bit allocation method applied to an encoding device includes: performing a high frequency operation on a plurality of encoding blocks of a first frame to obtain a first block texture weight corresponding to a first encoding block among the encoding blocks; performing a protected color detection operation on the encoding blocks to obtain a first block protected color weight corresponding to the first encoding block; calculating a first bit weight corresponding to the first encoding block according to the first block texture weight and the first block protected color weight; and performing bit allocation for the first encoding block according to the first bit weight.. . ... Mstar Semiconductor Inc

11/30/17 / #20170347052

Video processing device and method

A video processing device capable of automatically determining an operation mode is provided. The video processing device includes a control signal processing circuit and a controller. ... Mstar Semiconductor Inc

11/30/17 / #20170346597

Decoding apparatus and decoding method including error correction process

A decoding apparatus includes a differential decoder, an error correction decoder and a controller. The differential decoder performs differential decoding according to a differential encoding dependency to generate a differential decoding result. ... Mstar Semiconductor Inc

11/30/17 / #20170344789

Fingerprint recognition device and touch control device with fingerprint recognition function

A fingerprint recognition device includes a light-transmissible substrate, a plurality of sensing elements, a set of conductive lines and a fingerprint recognition chip. The sensing elements are disposed and the set of conductive lines are an upper surface of the light-transmissible substrate. ... Mstar Semiconductor Inc

11/23/17 / #20170338980

Signal detection method and signal receiving device for enhancing reliability of code rate search

A signal detection method associated with a constellation diagram corresponding to a modulation scheme is provided for enhancing the reliability of code rate search. A mask is provided between two adjacent constellation points in the modulation scheme. ... Mstar Semiconductor Inc

11/23/17 / #20170338843

Impulsive noise detection circuit and associated method

An impulsive noise detection method is applied to an orthogonal frequency-division multiplexing (ofdm) system to detect whether an input signal includes impulsive noise. The impulsive noise detection method includes receiving the input signal, converting the input signal to a digital input signal, filtering out a data band from the digital input signal to generate a signal under detection, calculating the signal under detection to generate a calculation result, and determining whether the input signal includes the impulsive noise according to the calculation result and a threshold.. ... Mstar Semiconductor Inc

11/23/17 / #20170337411

Fingerprint sensor

A fingerprint sensor includes a plurality of first touch electrode strips and a plurality of second touch electrode strips. The first touch electrode strips are arranged along a first direction, and the second touch electrode strips are arranged along a second direction different from first direction. ... Mstar Semiconductor Inc

11/23/17 / #20170336472

Conditional access chip, built-in self-test circuit and test method thereof

A self-test built in a conditional access chip is provided. The conditional access chip decrypts video data by using a plurality of logic units. ... Mstar Semiconductor Inc

11/16/17 / #20170331985

Video signal output system and method

A video signal output system includes a first video chip and a second video chip. The first video chip includes a first video signal output circuit and a simulation signal generating circuit. ... Mstar Semiconductor Inc

11/16/17 / #20170330306

Distorted image correcting apparatus and method

A distorted image correcting apparatus corrects a distorted image to generate a corrected image. The distorted image correcting apparatus includes: a buffer, including a plurality of memory blocks each storing one of a plurality of blocks of data of the distorted image; an allocation circuit, allocating the memory blocks in the buffer according to a memory configuration, wherein the memory blocks have different memory capacities; a memory controller, retrieving the blocks of data of the distorted image from a memory and storing the blocks of data to the buffer according to the memory configuration; and a correction circuit, retrieving a block of data from a memory block of the buffer, and generating a part of the corrected image according to the block of data.. ... Mstar Semiconductor Inc

11/09/17 / #20170325186

Device and method for handling carrier frequency offset

A communication device includes: a computing circuit, performing a jth power operation according to a first plurality of time-domain signals to generate a first plurality of computed signals; a transforming circuit, coupled to the computing circuit, transforming the first plurality of computed signals to a first plurality of frequency-domain signals according to a time-frequency transformation; a control circuit, coupled to the converting circuit, performing an absolute value operation on the first plurality of frequency-domain signals to generate a first plurality of output signals; a selecting circuit, coupled to the control circuit, selecting a maximum output signal satisfying a check condition from the first plurality of output signals; and a frequency estimating circuit, coupled to the selecting circuit, estimating a carrier frequency offset according to the maximum output signal.. . ... Mstar Semiconductor Inc

11/09/17 / #20170325001

Control circuit of multimedia device and data processing method thereof

A data processing method of a multimedia device is disclosed. The multimedia device pauses playback of multimedia data in response to a pause signal. ... Mstar Semiconductor Inc

11/09/17 / #20170324967

Method for controlling bitstream decoding and associated bitstream decoding circuit

A method for controlling bitstream decoding is provided. The bitstream includes a plurality of frames. ... Mstar Semiconductor Inc

11/09/17 / #20170324603

Tone map selecting device and method

A tone map selecting device includes: a bit-number-per-symbol providing circuit, providing a plurality of bit numbers per symbol, each of which associated with a tone map; a calculating circuit, performing a predetermined calculation on the bit numbers per symbol to generate a calculation result; and a selecting circuit, identifying one of the bit numbers per symbol that satisfies a predetermined relationship with the calculation result, and selecting the tone map associated with the bit number per symbol satisfying the predetermined relationship as a default tone map.. . ... Mstar Semiconductor Inc

11/09/17 / #20170324412

Electronic device and associated signal processing method

An electronic device includes a transmission interface, a driving circuit, a receiving circuit, a sampling circuit, a detecting circuit, a timing control circuit and a processing circuit. The transmission interface is for connecting to another electronic device via a connecting cable. ... Mstar Semiconductor Inc

10/26/17 / #20170310460

Control circuit and control method of communication device

A control circuit of a communication device includes: a periodic packet detection circuit, detecting a periodic packet of a data signal to generate a packet indication signal corresponding to the periodic packet; a frequency synthesis circuit, coupled to the periodic packet detection circuit, generating a working clock according to a reference clock; and a setting value generating circuit, coupled to the periodic packet detection circuit, generating a setting value according to a relationship between the frequencies of the working clock and the packet indication signal. The frequency synthesis circuit further adjusts the working clock according to the setting value to cause the frequency of the working clock to substantially be a predetermined multiple of the frequency of the packet indication signal.. ... Mstar Semiconductor Inc

10/12/17 / #20170295368

Bit rate controlling method and video encoding device

A bit rate controlling method applied to a video encoding device includes: establishing a parameter table according to a first frame-level parameter corresponding to a first frame, and storing the parameter table to a look-up table (lut) unit of the video encoding device; reading the parameter table stored in the lut unit to obtain at least one encoding parameter corresponding to an encoding block in the first frame according to the parameter table and a target parameter of the encoding block; and encoding the encoding block of the first frame according to the at least one encoding parameter.. . ... Mstar Semiconductor Inc

10/12/17 / #20170295342

Signal receiving end of digital television and signal processing method thereof

A signal receiving end of a digital television includes: an analog-to-digital converter (adc), converting an input signal from an analog format to a digital format, the input signal including a target signal and an interference signal; a digital gain control circuit, coupled to the adc, adjusting an amplitude of the target signal according to a gain; a detecting module, coupled to the digital gain control circuit, detecting a variance in the gain to generate a detection value; and a control circuit, coupled to the digital gain control circuit, determining a gain setting parameter according to the detection value. Wherein, the digital gain control circuit further updates the gain according to the gain setting parameter.. ... Mstar Semiconductor Inc

10/12/17 / #20170293336

Method for reading identification data from display device and associated processing circuit

A method for reading identification data from a display device includes: receiving an external supply voltage via a display connector of the display device, and generating an internal supply voltage according to the external supply voltage; selectively providing one of the internal supply voltage and a system supply voltage to a microprocessor; and reading the identification data from a second memory by using the microprocessor, and storing the identification data to a first memory.. . ... Mstar Semiconductor Inc

10/05/17 / #20170289537

Signal detection method and signal detection device

A signal detection method detects a digital signal in a channel. The signal detection method includes: performing a power operation and a frequency transformation operation on a signal of the channel to obtain at least one frequency-domain power set; and determining whether the channel carries the digital signal according to the at least one frequency-domain power set.. ... Mstar Semiconductor Inc

10/05/17 / #20170288914

Equalization enhancing module, demodulation system and equalization enhancing method

An equalization enhancing module includes: a multiplication unit, multiplying a plurality of equalized signals by a scaling coefficient to obtain a plurality of scaled signals; a determination unit, coupled to the multiplication unit, determining whether the plurality of scaled signals are located in a predetermined region to generate a plurality of determination results; a ratio calculating unit, coupled to the determination unit, calculating an inner ratio associated with a ratio of the plurality of scaled signals located in the predetermined region; and a coefficient calculating unit, coupled to the ratio calculating unit, calculating the scaling coefficient according to the inner ratio.. . ... Mstar Semiconductor Inc

09/28/17 / #20170280194

Viewing record processing circuit and associated method

A viewing record processing circuit includes: a sensor, receiving a remote control signal; a decoder, decoding the remote control signal to a digital command code; an instruction module, generating a plurality of channel selection instructions according to the digital command code; a viewing list generating module, generating a viewing list according to the channel selection instructions, the viewing list including multiple viewing records; a sorting module, sorting the multiple viewing records in the viewing list to generate a sorted viewing list; and a compression module, compressing the sorted viewing list to generate a compressed viewing list.. . ... Mstar Semiconductor Inc

09/28/17 / #20170277869

Computing device and data processing method

A data processing method applied to a rich execution environment (ree) and a trusted execution environment (tee) is disclosed. The ree executes a client application (ca) and the tee executes a trusted application (ta). ... Mstar Semiconductor Inc

09/28/17 / #20170277250

Dual-processor system and control method thereof

A dual-processor system includes a power supply, a temporary memory, a non-volatile memory and two processors. The non-volatile memory stores an initialization program code, a first configuration file corresponding to a first operating system, and a second configuration file corresponding to a second operating system. ... Mstar Semiconductor Inc

09/14/17 / #20170264910

Video stream decoding method and video stream decoding system

A video stream decoding system includes a video decoder, a frame encoder and a buffer. The frame encoder includes a prediction unit and a compressor. ... Mstar Semiconductor Inc

09/14/17 / #20170262292

Method of operating embedded system and control chip thereof

A method of operating an embedded system including target hardware is provided. An operating system of the embedded system has a user mode and a kernel mode. ... Mstar Semiconductor Inc

09/07/17 / #20170257232

Equalizer apparatus and viterbi algorithm based decision method

An equalizer apparatus includes a feedforward filter, a slicer circuit and a feedback circuit. The feedforward filter processes an input signal. ... Mstar Semiconductor Inc

09/07/17 / #20170255547

Source code error detection device and method thereof

A source code error detection device and a source code error detection method are disclosed. The device and method are applied to detect source codes of a software product. ... Mstar Semiconductor Inc

08/24/17 / #20170245007

Television system and method for promptly displaying information on television system

A television system includes a storage unit, a system memory, a signal receiving unit, a display unit and a processing unit. The storage unit stores a plurality of program instructions, an informative image file and a kernel. ... Mstar Semiconductor Inc

08/24/17 / #20170244589

Receiving circuit for estimating frequency offset and associated method

A receiving circuit capable of estimating frequency offset includes a front circuit and a calculation circuit. The front circuit receives a remote signal to generate a received signal. ... Mstar Semiconductor Inc

08/10/17 / #20170228087

Touch display device and associated control method

A control method for a touch display device including a display panel is provided. The display panel includes multiple first gate lines and multiple second gate lines respectively corresponding to a first field and a second field of a frame, and multiple sensing electrodes for touch sensing. ... Mstar Semiconductor Inc

08/03/17 / #20170223305

Video signal processing system, video signal processing chip and video signal processing method

A video signal processing system includes a first video signal processing chip and a second video signal processing chip. The first video signal processing chip determines whether both of a first video signal and a second video signal are in a stable state. ... Mstar Semiconductor Inc

08/03/17 / #20170222848

Analog equalizer

A analog equalizer includes: an adjusting circuit, generating an adjustment signal and a selection signal; a cascaded equalization circuit, receiving the adjustment signal, and adjusting at least one of a tunable resistor, a tunable capacitor and a tunable current source in the multi-stage equalization circuit according to the adjustment signal to perform an equalization process on a signal to be equalized; and an analog multiplexer, coupled to the cascaded equalization circuit and the adjusting circuit, selecting and outputting an equalized signal outputted from one stage of the multi-stage equalization circuit according to the selection signal. Wherein, the adjusting circuit adjusts the adjustment signal and the selection signal according to the equalized signal outputted from the analog multiplexer and a target equalization value.. ... Mstar Semiconductor Inc

08/03/17 / #20170222836

Device and method for handling sequence estimation

A sequence estimation device includes: a soft decision processing unit, generating a plurality of input signals including soft information according to a plurality of first equalized signals, an equalizer weight and a plurality of estimation signals corresponding to the equalizer weight; and a decoding unit, coupled to the soft decision processing unit, decoding the plurality of input signals including the soft information according to a decoding rule to generate a plurality of output signals.. . ... Mstar Semiconductor Inc

08/03/17 / #20170222755

Decoding module with logarithm calculation function

A decoding module for a communication device includes a first calculation circuit, outputting the larger between a first parameter and a second parameter as a first output parameter; a first arithmetic circuit, calculating a first product of a third parameter and a first slope, and a first difference between a first constant and the first product; a second arithmetic circuit, calculating a second product of the third parameter and a second slope, and a second difference between a second constant and the second product; a second calculation circuit, selecting the largest among a third constant, the first difference and the second difference and generating a second output parameter, wherein the third constant is zero; and an addition circuit, adding the first output parameter and the second output parameter to generate output information, according to which the communication device determines a data bit.. . ... Mstar Semiconductor Inc

07/27/17 / #20170212682

Time de-interleaving circuit and method thereof

A time de-interleaving method is applied to a signal receiver of a communication system to perform a time de-interleaving process on an interleaved signal. The interleaved signal includes a first time interleaved block and a second time interleaved block. ... Mstar Semiconductor Inc

07/20/17 / #20170208286

Television system and multimedia playing method

A television system includes: a storage unit, storing a plurality of candidate multimedia files and a plurality of program instructions; a display unit; a trigger signal receiving unit, receiving a trigger signal; and a processing unit, executing the program instructions to perform operations of: playing a target multimedia file via the display unit, generating target characteristic information according to the target multimedia file, generating a plurality of sets of candidate characteristic information respectively corresponding to the candidate multimedia files according to the candidate multimedia files, selecting one of the candidate multimedia files according to the target characteristic information and the candidate characteristic information in response to the trigger signal, and playing the selected candidate multimedia file via the display unit to replace the playback of the target multimedia file.. . ... Mstar Semiconductor Inc

07/13/17 / #20170201765

Video stream decoding method and video stream decoding system

A video stream decoding system includes a video decoder, a frame encoder, a buffer and a frame decoder. The video decoder receives a video stream, and decodes an encoded frame in the video stream to generate a frame. ... Mstar Semiconductor Inc

07/13/17 / #20170201707

Television managing apparatus and television managing method cooperating with remote controller

A television managing apparatus cooperating with a remote controller includes a receiver and a controller. The receiver receives an instruction sent from the remote controller. ... Mstar Semiconductor Inc

07/13/17 / #20170201409

Apparatus and method for estimating carrier frequency offset for multipath signals

An apparatus for estimating carrier frequency offset for multipath signals includes an echo signal filtering circuit, an mth power circuit, a spectrum generating circuit, a peak frequency determining circuit and a frequency offset determining circuit. The echo signal filtering circuit filters out an echo signal from an input signal to generate a filtered signal. ... Mstar Semiconductor Inc

07/13/17 / #20170201404

Apparatus and method for estimating carrier frequency offset

An apparatus for estimating carrier frequency offset includes an mth power circuit, a spectrum generating circuit, a peak frequency determining circuit and a frequency offset determining circuit. The mth power circuit performs an mth power calculation on an input signal to generate an mth power calculation result. ... Mstar Semiconductor Inc

07/06/17 / #20170195712

Automatic channel changing auxiliary device and automatic channel changing method thereof

A device providing an automatic channel changing function includes: a receiving unit, receiving recommended program data, first user data and second user data from a first av playing device; a storage unit, storing reference data; a look-up unit, generating channel changing data according to the recommended program data, the first user data, the second user data and the reference data; and a transmitting unit, transmitting the channel changing data to a second av playing device according to the second user data.. . ... Mstar Semiconductor Inc

07/06/17 / #20170193275

Fingerprint identification electrode structure

A fingerprint identification electrode includes a first conductive layer, a second conductive layer, and an insulating layer between the first conductive layer and the second conductive layer. The first conductive layer includes a plurality of first touch electrode strips. ... Mstar Semiconductor Inc

07/06/17 / #20170193265

Capacitive sensing device, fingerprint sensing device and method for manufacturing capacitive sensing device

A capacitive sensing device includes: a substrate; a touch sensing electrode group, disposed above the substrate; a fingerprint sensing electrode group, disposed above the substrate; and a capacitive sensing integrated circuit, electrically connected to the touch sensing electrode group and the fingerprint sensing electrode group, sensing a capacitance change in the touch sensing electrode group to generate a touch control instruction, and sensing a capacitance change in the fingerprint sensing electrode group to generate a fingerprint pattern.. . ... Mstar Semiconductor Inc

06/29/17 / #20170188247

Device and method for handling bit allocation

A bit allocation device includes: a channel estimation unit, performing a channel estimation to generate a plurality of channel qualities of a plurality of subcarriers; a processing unit, coupled to the channel estimation unit, generating a first plurality of bit numbers of the plurality of subcarriers according to the plurality of channel qualities; and a control unit, coupled to the processing unit, generating a second plurality of bit numbers of the plurality of subcarriers according to the first plurality of bit numbers and an upper limit of a total bit number.. . ... Mstar Semiconductor Inc

06/29/17 / #20170187767

Method for detecting data stream synchronization

A method for detecting data stream synchronization includes receiving a first data stream, verifying a first data sequence corresponding to a first data sequence field, generating a first flag of successful synchronization verification when the first data sequence is successfully verified, verifying a second data sequence corresponding to a second data sequence field, and generating a second flag of successful synchronization verification when the second data sequence is successfully verified.. . ... Mstar Semiconductor Inc

06/15/17 / #20170168609

Mutual capacitive touch sensing device of touch panel

A mutual capacitive touch sensing device of a touch panel includes a plurality of touch sensing groups arranged along a first direction. Each touch sensing group includes a first electrode, a plurality of second electrodes and a plurality of third electrodes. ... Mstar Semiconductor Inc

06/08/17 / #a signal detection method includes: retrieving a first period component of a signal and at least one second period component adjacent to the first period component; squaring a subtraction result of the first period component and each of the at least one second period component to calculate at least one first square value to further obtain a first detection parameter; squaring an addition result of the first period component and each of the at least one second period component to calculate at least one second square value to further obtain a second detection parameter; dividing the second detection parameter by the first detection parameter to obtain a detection function;

Mstar Semiconductor, Inc.

. . ... Mstar Semiconductor Inc

06/08/17 / #20170163453

Equalizing apparatus and soft decision method

An equalizing apparatus includes a feedforward filter, a soft slicer and a feedback filter. The feedforward filter processes an input signal. ... Mstar Semiconductor Inc

06/01/17 / #20170155918

Bitstream decoding method and bitstream decoding circuit

A stream decoding method is provided. The stream includes a plurality of frames. ... Mstar Semiconductor Inc

05/18/17 / #20170139871

Multimedia communication apparatus and control method for multimedia data transmission over standard cable

A multimedia communication apparatus, suitable for a first multimedia apparatus, is adapted to transmit or receive multimedia data and is electrically connectable to a standard connector. The standard connector may be non-reversibly or reversibly connected to a plug of a standard cable, and includes a plurality of the pins. ... Mstar Semiconductor Inc

05/04/17 / #20170123529

Touch display panel and associated driving circuit and driving method

A driving circuit for a touch control panel, that selectively operates in a display mode or a touch mode, includes a display data generating circuit and a touch control circuit. When the driving circuit operates in the display mode, the display data generating circuit transmits display data to multiple data lines of a pixel array of the touch display panel. ... Mstar Semiconductor Inc

04/27/17 / #20170115798

Touch display panel and associated driving circuit and driving method

A driving circuit for a touch display panel is selectively operable in a display mode or a touch mode. The driving circuit includes a touch driving circuit and a display driving circuit. ... Mstar Semiconductor Inc

04/13/17 / #20170104614

Decision feedback equalizer and control method thereof

A control method for a decision feedback equalizer (dfe) includes: generating a channel impulse response (cir) estimation vector according to an input signal at a cir estimation frequency; generating an ffe coefficient according to the cir estimation vector at a first frequency; generating an fbe coefficient according to the cir estimation vector, and the ffe coefficient at a second frequency; generating a feed-forward equalization filtered result according to the input signal and the ffe coefficient; generating a feed-backward equalization filtered result according to a decision signal and the fbe coefficient; and generating an updated decision signal according to the feed-forward equalization filtered result and the feed-backward equalization filtered result. At least one of the first frequency and the second frequency is smaller than the cir estimation frequency.. ... Mstar Semiconductor Inc

04/13/17 / #20170104415

Switched-mode voltage converter

A switched-mode voltage converter includes an energy storage component, a plurality of switches and a controller. The energy storage component is coupled to a voltage source, and includes a switching terminal. ... Mstar Semiconductor Inc

03/09/17 / #20170070697

Frequency prediction method and image processing device applying the same

A frequency prediction method for determining a plurality of predicted frequencies for an image processing device to receive an image signal is provided. The frequency prediction method includes: receiving a channel switching signal; determining a plurality of prediction results according to the channel switching signal, wherein the prediction results have a priority sequence; and determining the predicted frequencies according to the prediction results and a channel-frequency correspondence table.. ... Mstar Semiconductor Inc

03/09/17 / #20170070230

Clock data recovery apparatus and method and phase detector

A clock data recovery apparatus includes an oscillator, a phase detector and an oscillator control circuit. The oscillator generates an original clock signal. ... Mstar Semiconductor Inc

03/09/17 / #20170070218

Integrated circuit associated with clock generator, and associated control method

An integrated circuit includes a data sampler and a digital logic circuit. The data sampler provides multiple signal samples at a speed twice a symbol rate according to a local clock signal and the inverted local clock signal. ... Mstar Semiconductor Inc

03/09/17 / #20170068365

Touch display apparatus capable of fingerprint recognition and fingerprint recognition module

A touch display apparatus capable of fingerprint recognition includes a display panel, a cover plate, a touch sensing electrode set and a fingerprint recognition electrode set. The display panel includes a first surface. ... Mstar Semiconductor Inc

03/02/17 / #20170063578

Sequence estimation device and method

A sequence estimation device includes a grouping unit, a sequence estimation unit and a combination unit. The grouping unit groups a first plurality of equalized signals into a plurality of equalized signal groups according to a grouping rule. ... Mstar Semiconductor Inc

03/02/17 / #20170063473

Apparatus and method for eliminating impulse interference

An apparatus for eliminating impulse interference includes an impulse interference detecting unit, an impulse interference eliminating unit and a control unit. The impulse interference detecting unit detects whether impulse interference exists in an input signal according to a predetermined condition, and generates an impulse interference eliminating request when having detected that the input signal satisfies the predetermined condition. ... Mstar Semiconductor Inc

03/02/17 / #20170061962

Smart playback method for tv programs and associated control device

A smart playback method for tv programs includes: converting voice data to text data including a plurality of words; selecting a keyword from the words in the text data; providing a tv program according to the keyword; and controlling a screen to play the tv program.. . ... Mstar Semiconductor Inc

03/02/17 / #20170061573

Image processing system and image processing method

An image processing system includes an image processing module, a frame buffer encoding module and a frame buffer. Each image block includes multiple first-type coding blocks and at least one second-type coding block. ... Mstar Semiconductor Inc

03/02/17 / #20170060640

Routine task allocating method and multicore computer using the same

A routine task allocating method of a multicore computer is provided. The multicore computer includes processor that includes a plurality of processing cores. ... Mstar Semiconductor Inc

03/02/17 / #20170060335

Method and associated controller for adaptively adjusting touch control threshold

A method for adaptively adjusting a touch control threshold of a touch panel is provided. The method includes: receiving a set of sample values from the touch panel; calculating a mean value and a standard deviation based on the set of sample values according to a determination result indicating that the set of sample values are not greater than the touch control threshold; and updating the touch control threshold according to the mean value and the standard deviation.. ... Mstar Semiconductor Inc

02/23/17 / #20170052708

Method for accessing flash memory and associated memory controller and electronic device

A method for accessing a flash memory includes: sending a write command and a set of corresponding data, wherein the data is for updating a part of contents of a first physical page, corresponding to a logical page, of a physical block in a flash memory; searching the physical block according to the write command for a second physical page that is allowed to be written; writing the data to the second physical page; and recording that the second physical page corresponds to the logical page.. . ... Mstar Semiconductor Inc

02/09/17 / #20170041009

Delay locked loop and associated control method

A control method for a delay locked loop includes: delaying an input signal to generate an internal signal; delaying the internal signal to generate an output signal; and selectively providing a reference clock signal or the output signal as the input signal according to the output signal and the internal signal.. . ... Mstar Semiconductor Inc

02/09/17 / #20170038864

Touch panel

A touch panel includes a plurality of touch sensing groups. Each of the touch sensing groups includes a central electrode, a plurality of first electrodes and a plurality of second electrodes. ... Mstar Semiconductor Inc

02/02/17 / #20170034553

Transport stream processor capable of timing calibration, and timing calibration device and method

A timing calibration device for calibrating a timing relationship between a clock signal and a first signal includes: an input port, receiving the clock signal through a clock transmission path, and receiving the first signal through a first path; and a calibrator. The calibrator includes: a first sampling circuit, sampling the first signal according to the clock signal to generate a first sample result; a control circuit, determining that the first sample result is valid when the first sampling result includes a transition edge of the first signal; and a first edge adjusting circuit, adjusting one of a transition edge of the clock signal and the transition edge of the first signal when the first sample result is valid to satisfy a predetermined timing relationship.. ... Mstar Semiconductor Inc

02/02/17 / #20170031696

Program code loading method of application and computing system using the same

A program code loading method of an application is applied to a computing system that stores a program code of an application in a flash memory. The program code is loaded in a recording mode, including generating an initial address and a data length of a second program code of the application by executing a first program code of the application. ... Mstar Semiconductor Inc

02/02/17 / #20170031498

Touch control electronic device and control method thereof

A touch control electronic device includes a main display region, a touch sensing electrode group and a control module. The main display region is disposed at a front face of the touch control electronic device. ... Mstar Semiconductor Inc

01/26/17 / #20170026037

Low-voltage differential signaling driving circuit

A low-voltage differential signaling (lvds) driving circuit, coupled to a load resistor via a first output end and a second output end, includes: a voltage generating unit, providing a first reference voltage; a first switch, coupled between the voltage generating unit and a first node; a second switch, coupled between the voltage generating unit and a second node; a third switch, coupled between the first node and a third node, the third node having a second reference voltage; a fourth switch, coupled between the second node and the third node; a first resistor, coupled between the first node and the first output end; and a second resistor, coupled between the second node and the second output end. The first resistor and the second resistor are in a series connection with the load resistor.. ... Mstar Semiconductor Inc

01/26/17 / #20170025087

Control circuit and associated control method applied to digital visual interface

A control circuit applied to digital visual interface (dvi) includes a detecting circuit and a switching circuit. The detecting circuit detects a state of a predetermined pin of a dvi connector to generate a control signal. ... Mstar Semiconductor Inc

01/19/17 / #20170019213

Decoding method using dynamic scaler factor

A decoding method applied to a convolutionally coded signal is provided. The method includes: adjusting first input information according to a first scaling factor to generate first a-priori information; b) decoding the convolutionally coded signal according to systematic information and the first a-priori information to generate first extrinsic information; c) adjusting second input information according to a second scaling factor to generate second a-priori information, wherein the second scaling factor is generated according to the first extrinsic information and the first a-priori information; and d) decoding the convolutionally coded signal according to the systematic information and the second a-priori information to generate second extrinsic information. ... Mstar Semiconductor Inc

01/19/17 / #20170019019

Power supply operating in ripple mode and control method thereof

A power supply for powering a load includes a power converter, a remote output node, a transmission line, a feedback circuit and a power controller. The power converter converts an input power to a near output power, and includes a power input node receiving the input power and an output node outputting the near output power. ... Mstar Semiconductor Inc

01/19/17 / #20170017823

Capacitor sensor structure, circuit board structure with capacitor sensor, and package structure of capacitive sensor

A capacitive sensor structure includes: a substrate; a multilayer wire structure, disposed on the substrate to form a passive sensing circuit; and a semiconductor chip, formed thereon a control circuit, fixedly mounted on a surface of the substrate and electrically connected to the multilayer wire structure.. . ... Mstar Semiconductor Inc

01/12/17 / #20170012737

Time and cell de-interleaving circuit and method for performing time and cell de-interleaving

A method for performing time and cell de-interleaving on an interleaved signal including a plurality of cells is provided. The method includes: providing a first memory for storing the cells, the first memory written and read each time in a unit of one cell group, the cell group including k cells, where k is a positive integer greater than 1; providing a second memory for storing the cells read from the first memory; reading the cells from the first memory, and writing the cells to the second memory according to a writing rule of a plurality of permutation rules, k consecutive cells written to the second memory being from the same cell group; and reading the cells from the second memory according to a reading rule of the permutation rules, to cause the cells read from the second memory to be complete with time de-interleaving and cell de-interleaving.. ... Mstar Semiconductor Inc

01/05/17 / #20170005737

Mismatch compensating device and method, and mismatch detecting device

A mismatch compensating device includes: a signal generator, synchronously outputting first and second signal; a gain and phase compensator, processing the first and second signals according to a gain parameter and a phase parameter to generate compensated first and second signals; a dac, performing a digital-to-analog conversion on the compensated first and second signals to generate first and second analog signals; an analog front-end circuit, processing the first and second analog signals to output a joint signal; a mismatch detecting circuit, detecting the power of the joint signal to generate a detection result; a frequency-dependent mismatch compensator, compensating at least one of the first and second signals; and a control circuit, setting the gain and phase parameters and a parameter of the frequency-dependent mismatch compensator according to the detection result to compensate frequency-independent gain and phase mismatch and a frequency-dependent mismatch response.. . ... Mstar Semiconductor Inc








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