| Patent Number |
Title Of Patent |
Date Issued |
| 7620125 |
Frequency estimation apparatus and related method |
November 17, 2009 |
| A method of frequency estimation includes (a) receiving frequency correction channel (FCCH) data samples; (b) calculating an estimated frequency offset based on the received data samples; (c) compensating the received data samples using the estimated frequency offset; (d) repeating s |
| 7613238 |
Apparatus and method for decision error compensation in an adaptive equalizer |
November 3, 2009 |
| An adaptive equalizer comprises: a forward equalizer (FE) receiving a symbol stream to generate an FE output; a decision feedback equalizer (DFE) receiving a decision symbol stream to generate a DFE output; a first adder, coupled to the forward equalizer and the decision feedback equ |
| 7613093 |
Duty ratio control apparatus for pre-pit detection or header detection of an optical storage med |
November 3, 2009 |
| A pre-pit signal generating device includes: a first slicer for generating a sliced signal corresponding to a push-pull signal based on a first reference level; a duty ratio controller coupled to the first slicer for adjusting the first reference level or the push-pull signal to control |
| 7613087 |
Apparatus and method for accurately converting groove/land polarity upon groove/land track chang |
November 3, 2009 |
| The present invention discloses an apparatus and method for accurately converting a groove/land polarity upon a groove/land track change on an optical medium, by way of initially deciding a reference groove/land changing point or a decoded PID of any one specific sector formed on the |
| 7612714 |
Satellite search method |
November 3, 2009 |
| A method for searching satellites in a cold start state. The method of the present invention, a first satellite, which is predetermined or randomly selected, is searched. Then, a second satellite to be searched is selected according to the searching result (hit or missed) for the first |
| 7612615 |
Dual supply amplifier |
November 3, 2009 |
| A dual supply amplifier without using an inter-stage capacitor is disclosed. The dual supply amplifier has an input stage coupled to a lower supply voltage V.sub.DD1 for generating a voltage signal V3 proportion to a difference between a pair of inputs. A conversion stage is coupled |
| 7612589 |
Phase-locked loop and control method utilizing the same |
November 3, 2009 |
| A phase-locked loop includes a processing unit, a voltage-controlled oscillator, and a control unit. The processing unit generates a control voltage to a node according to a phase difference between a reference clock and a first feedback clock. The voltage-controlled oscillator gener |
| 7609599 |
Method of identifying a type of an optical disc and the device therefor |
October 27, 2009 |
| A method of identifying a type of an optical disc applied in an optical drive is provided. The optical drive at least comprises an optical pickup head. First, move the optical pickup head continually from an initial position. Then, emit a light beam on an optical disc continually and |
| 7609094 |
Input circuits and methods thereof |
October 27, 2009 |
| An input circuit comprising a level-determining unit and an output unit is provided. In a first period controlled by a first enable signal, the level-determining unit receives an input signal at an input terminal of the input circuit and determines a voltage level of the input signal. Th |
| 7606434 |
Apparatus and method for forming a coding unit |
October 20, 2009 |
| An apparatus and a method for forming a data structure that improves error resilience when applied to the coding of hierarchical subband decomposed coefficients, e.g., wavelet transform coefficients. The texture unit is defined as comprising only those AC transform coefficients that are |
| 7606340 |
Phase detection device and method thereof |
October 20, 2009 |
| A phase detection device comprising an analog-digital converter, an interpolator, and a determining unit. The analog-digital converter receives an analog signal and converts the analog signal to a digital signal according to a plurality of digital sampling points. The interpolator ge |
| 7605872 |
Video contrast adjusting method and system |
October 20, 2009 |
| Methods and systems for adjusting color-saturation contrast of the video signal. Statistical information based on chrominance or luminance measures is analyzed to derive a gain function. The gain function is also determined according to the detection result of an exceptional situation |
| 7605865 |
Apparatus and method for video data processing in digital video decoding |
October 20, 2009 |
| An apparatus and method for video data processing in digital video decoding, such as digital video disk (DVD) decoding, which produces new video data according to main picture data, sub-picture unit (SPU) data, and an aspect ratio. The apparatus includes a sub-picture-unit-decoding a |
| 7605667 |
Frequency synthesizer with a harmonic locked phase/frequency detector |
October 20, 2009 |
| A frequency synthesizer. The frequency synthesizer comprises a harmonic locked phase/frequency detector, a low pass filter, a voltage controlled oscillator, and a frequency divider. The harmonic locked phase/frequency detector receives a reference signal and a divided signal. The low pas |
| 7605654 |
Telescopic operational amplifier and reference buffer utilizing the same |
October 20, 2009 |
| A telescopic operational amplifier including a current source, an input stage, and a load stage is provided. The input stage is coupled to the current source and includes a group of input transistors for receiving an input voltage. The load stage is coupled to the input stage and include |
| 7603096 |
Mixer with self-calibrating carrier leakage mechanism |
October 13, 2009 |
| An embodiment of a mixer with carrier leakage self-calibrating is disclosed. The mixer comprises a double balanced mixer, a gm stage comprising a first processing unit and a second processing unit, a current duplicating circuit, a capacitor, a controller and a current compensation un |
| 7602988 |
Method for adjusting saturation and contrast of an area of an image and apparatus thereof |
October 13, 2009 |
| A method for adjusting saturation of an area of an image is disclosed. The method includes calculating a deviation level of a pixel in the area of the image and calculating a modified saturation value of the pixel in the area of the image according to the deviation level of the pixel in |
| 7602853 |
Method and apparatus for channel estimation |
October 13, 2009 |
| The invention relates to DVB-T system, and in particular, to a channel estimation method for OFDM symbols. A plurality of symbols are received to generate a pilot response. A finite impulse response is generated from the pilot response. A coefficient table is selected based on the ch |
| 7602655 |
Embedded system |
October 13, 2009 |
| An embedded system for programming a programmable device including a micro controller and an I/O interface. The programmable device includes a pin set for signal delivery. The micro controller device controls the programmable device via the pin set. The I/O interface receives a program |
| 7602239 |
Variable gain amplifier circuits |
October 13, 2009 |
| A variable gain amplifier circuit has an amplifier, a string of resistors, a plurality of gain switches, a current source, and at least two current switches. A first input terminal of the amplifier receives an input voltage signal. The string of resistors are coupled between an output |
| 7596661 |
Processing modules with multilevel cache architecture |
September 29, 2009 |
| A processing module with multilevel cache architecture, including: a processor; a level-one (L1) cache, coupled to the processor, for caching data for the processor, wherein the L1 cache has at least one L1 cacheable range; a level-two (L2) cache, coupled to the L1 cache, for caching |
| 7595748 |
Method of gain error calibration in a pipelined analog-to-digital converter or a cyclic analog-t |
September 29, 2009 |
| The invention provides a method of gain error calibration in a pipelined analog-to-digital converter (ADC). In one embodiment, a first stage and a second stage of the pipelined ADC share a common operational amplifier. The first stage is requested to generate the stage output signal ther |
| 7595695 |
Compensated operational amplifier and active RC filter including such an amplifier |
September 29, 2009 |
| A method of compensating a monolithic integrated operational amplifier against process and temperature variations, such that the operational amplifier is suitable for use in an active filter, the method comprising a providing an amplifier having a first stage and an output stage, whe |
| 7593063 |
Method of detecting a format type of an incoming video signal and source format detector thereof |
September 22, 2009 |
| A source format detector for detecting a format of a video signal includes a frequency data generator for generating first frequency data corresponding to a first field in the video signal, and second frequency data corresponding to a second field in the video signal; a transform dom |
| 7592938 |
Analog-to-digital converter and method of gain error calibration thereof |
September 22, 2009 |
| The invention provides an analog-to-digital converter (ADC). The ADC comprises a plurality of stages connected in series, a gain error correction module, and a look-ahead module. Each of the stages derives a stage output value from a stage input signal and generates a stage output si |
| 7592937 |
CABAC decoding unit and method |
September 22, 2009 |
| A context-based adaptive binary arithmetic coding (CABAC) method. The CABAC method for a bitstream comprises: detecting a control signal (Sig_first); decoding a first bin representing one of a first coefficient flag (Sig) and a second coefficient flag (Last) from the bitstream accord |
| 7592847 |
Phase frequency detector and phase-locked loop |
September 22, 2009 |
| A phase frequency detector with two different delays is disclosed herein. The phase detector comprises a first D flip-flop, a second D flip-flop, a first delay unit and a second delay unit. The first D flip-flop receives a reference signal to output an up signal. The second D flip-flop |
| 7590925 |
Apparatus and method for detecting puncture position in a symbol stream encoded by punctured con |
September 15, 2009 |
| An apparatus and method for determining a puncture position for a de-puncturing process. A stream of received symbols that corresponds to a code is received. A slicing unit slices the stream of received symbols to determine representative bits of the code to form a first bit stream. A |
| 7590037 |
Method and apparatus for decoding encoded data around a discontinued area on an optical storage |
September 15, 2009 |
| A method for decoding encoded data around a specific area on an optical storage medium, wherein the specific area has discontinued data. The method includes: detecting at least one type of sync patterns within the encoded data; determining an offset value corresponding to the specific |
| 7589593 |
Amplifier circuit having stacked main amplifier and parallel sub-amplifier |
September 15, 2009 |
| An amplifier circuit for amplifying an input signal to generate an output signal is provided. The amplifier circuit has a stacked main amplifier, a parallel sub-amplifier, and a signal combiner. The stacked main amplifier includes a first amplifier unit for outputting a first amplified s |
| 7587093 |
Method and apparatus for implementing DCT/IDCT based video/image processing |
September 8, 2009 |
| Several apparatuses employing a tag table and/or an AC table, and same method are provided. First, a data access apparatus, which comprises a buffer, a tag table and a controller, receives and outputs a plurality of data with at least two distinct categories in a specified sequence. The |
| 7586822 |
Optical drive controller providing calibrated laser diode driver |
September 8, 2009 |
| An optical disk drive includes an optical disk drive controller that can test the write channels between the controller and the laser diode driver. Using the results of this testing, the optical disk drive controller adjusts the characteristics of the write channel signals provided t |
| 7586698 |
Spherical aberration control method and related apparatus |
September 8, 2009 |
| The invention discloses a spherical aberration control method for controlling spherical aberration of an optical device. The method includes: detecting a current ambient temperature of the optical device; and controlling the spherical aberration of the optical device according to the |
| 7586441 |
Methods and apparatuses for searching for satellite signals |
September 8, 2009 |
| Methods and apparatuses for searching for satellite signals are provided. One of the proposed methods of searching for satellite signals includes: searching for satellite signals according to measurement predictions; searching for satellite signals of a reference satellite without re |
| 7584372 |
Station control method and station using the same |
September 1, 2009 |
| An apparatus is provided, for reducing power consumption in a system operating in a power saving mode, comprising a controller, an oscillator circuit and a voltage regulator. The controller provides a first control signal and a second control signal. The oscillator circuit, connected to |
| 7583729 |
Adaptive equalizer and related method thereof |
September 1, 2009 |
| An adaptive equalizer and the related method are disclosed. The adaptive equalizer is capable of adjusting its own equalization coefficients, and includes a reference signal generator for generating a reference signal according to a first reference source, an equalization unit for ge |
| 7581160 |
ACS circuit and Viterbi decoder with the circuit |
August 25, 2009 |
| An ACS circuit and a Viterbi decoder with the circuit. The Add-Compare-Select (ACS) circuit comprises: two registers for storing two previous candidate state metrics; a first adder for adding the value stored in the first register and a first branch metric to generate a first additio |
| 7580453 |
Method and apparatus for equalization |
August 25, 2009 |
| An exemplary embodiment of an adaptive equalizer is provided, receiving symbols to generate an equalizer output. The adaptive equalizer comprises a plurality of tap cells, a coefficient updater, a plurality of multiplexers, a controller and an integrator. Each tap cell generates a fi |
| 7580211 |
DVD recording |
August 25, 2009 |
| A DVD recorder including a multiplexer that stores multiplexed audio data and video data in a memory device, and a data scrambler that reads the multiplexed data from the memory device and scrambles the multiplexed data to generate scrambled data, in which the scrambled data has a bit |
| 7579689 |
Integrated circuit package, and a method for producing an integrated circuit package having two |
August 25, 2009 |
| An integrated circuit package (1) comprising first and second dies on a laminate (5) in a resin encapsulating housing (6) comprises a digital signal processing integrated circuit (8) fabricated on the first die (2), and a digital-to-analogue converting circuit (9) fabricated on the secon |
| 7577114 |
Method for controlling a mobile communication device to enter a power-saving mode and to recover |
August 18, 2009 |
| A method for controlling a mobile communication device to enter a power-saving mode and to recover timing after the mobile communication device leaves the power-saving mode. The mobile communication device communicates with a base station through a time division multiple access (TDMA |
| 7577068 |
Dynamic write strategy modification method and apparatus |
August 18, 2009 |
| The invention relates to write strategy modification, and in particular, to dynamic write strategy modification. A dynamic write strategy modification method comprises: writing a plurality of data on to an optical disk according to a writing strategy with at least three parameters; m |
| 7574235 |
Mobile communication apparatus having anti-theft and auto-notification functions |
August 11, 2009 |
| A mobile communication apparatus comprises a first SIM card, an anti-theft control circuit, and a transmission control circuit. The first SIM card is engaged with the mobile communication apparatus and has a corresponding first IMSI code. The anti-theft control circuit has a SIM-card |
| 7573959 |
Method and apparatus for removing impulse noise |
August 11, 2009 |
| An impulse noise remover includes: a storage module for storing a plurality of digital values derived from a received signal; a calculating module coupled to the storage module for calculating a first detection value according to a first subset of the plurality of digital values, and |
| 7573954 |
Apparatus and method for compensating IQ imbalance in OFDM system with carrier frequency offset |
August 11, 2009 |
| An apparatus and method of an OFDM system for compensating IQ imbalance. The apparatus includes a mixer module for mixing a wireless signal to generate a pair of in-phase and quadrature-phase analog signals; an in-phase and quadrature-phase imbalance parameter estimation unit coupled |
| 7567787 |
Apparatus and method of feeding internal calibration signal through electro-static discharge pro |
July 28, 2009 |
| An apparatus and method for internally calibrating a direct conversion receiver (DCR) through feeding a calibration signal via ESD protection circuitry is disclosed. The apparatus includes an internal signal generator for generating a calibration signal, a front-end input stage for r |
| 7567054 |
Control circuit and method of controlling rotation frequency of spindle in optical disc drive fo |
July 28, 2009 |
| A control circuit and a control method of controlling a rotation frequency of a spindle in an optical disc drive, the control circuit comprising: a spindle controller, electrically coupled to the spindle, for driving the spindle to rotate an optical disc according to a rotation control s |
| 7564912 |
Method and apparatus for channel state information generation in a DVB-T receiver |
July 21, 2009 |
| A method and apparatus for channel state information generation in a DVB receiver. The present invention comprises: obtaining the magnitude of an error signal and a channel response signal of a sub-carrier; combining the magnitude of the error signal and the magnitude of the channel |
| 7564313 |
Phase locked loop for controlling a recording device and method thereof |
July 21, 2009 |
| A PLL system for generating an output signal according to a first reference signal is disclosed. The PLL system includes a clock generator to generate the output signal according to a phase difference between the first reference signal and the frequency-divided signal; and a phase-sh |
| 7562159 |
Systems and methods for selectively activating functions provided by a mobile phone |
July 14, 2009 |
| Methods for selectively activating one of multiple functions provided by a mobile phone are provided. An embodiment of a method for selectively activating one of multiple functions comprises the following steps. The coupling of the mobile phone to a computer system is detected. A first |
