SG84483A1 - Signal processing apparatus and method - Google Patents

Signal processing apparatus and method

Info

Publication number
SG84483A1
SG84483A1 SG9606688A SG1996006688A SG84483A1 SG 84483 A1 SG84483 A1 SG 84483A1 SG 9606688 A SG9606688 A SG 9606688A SG 1996006688 A SG1996006688 A SG 1996006688A SG 84483 A1 SG84483 A1 SG 84483A1
Authority
SG
Singapore
Prior art keywords
processing apparatus
signal processing
signal
processing
Prior art date
Application number
SG9606688A
Other languages
English (en)
Inventor
Peter J Claydon Anthony
D Macfarlane Charles
J Gammack Richard
Mark Jones Anthony
P Robbins William
Barnes Mark
Original Assignee
Discovision Ass
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Discovision Ass filed Critical Discovision Ass
Publication of SG84483A1 publication Critical patent/SG84483A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/2703—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques the interleaver involving at least two directions
    • H03M13/2707—Simple row-column interleaver, i.e. pure block interleaving
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/276—Interleaving address generation
    • H03M13/2764—Circuits therefore
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0032—Correction of carrier offset at baseband and passband
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0061—Closed loops remodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0073—Detection of synchronisation state
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H04L2027/0081—Switching between loops between loops of different bandwidths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Analogue/Digital Conversion (AREA)
SG9606688A 1995-06-07 1996-03-12 Signal processing apparatus and method SG84483A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9511568.9A GB9511568D0 (en) 1995-06-07 1995-06-07 Signal processing apparatus and method

Publications (1)

Publication Number Publication Date
SG84483A1 true SG84483A1 (en) 2001-11-20

Family

ID=10775695

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9606688A SG84483A1 (en) 1995-06-07 1996-03-12 Signal processing apparatus and method

Country Status (8)

Country Link
US (5) US5692020A (ko)
EP (6) EP0874466A2 (ko)
JP (3) JPH098853A (ko)
KR (1) KR970004875A (ko)
CN (1) CN1138795A (ko)
CA (1) CA2170469A1 (ko)
GB (1) GB9511568D0 (ko)
SG (1) SG84483A1 (ko)

Families Citing this family (158)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2865026B2 (ja) * 1995-06-30 1999-03-08 日本電気株式会社 比較器
KR0175371B1 (ko) * 1995-08-28 1999-03-20 김광호 전송 스트림의 동기 바이트 검출 회로
US5802461A (en) * 1996-09-16 1998-09-01 Texas Instruments Incorporated Apparatus and method for timing recovery in vestigial sibeband modulation
US5917869A (en) * 1996-09-30 1999-06-29 Lucent Technologies Inc. Apparatus and method for timing/carrier recovery in bandwidth-efficient communications systems
US6047352A (en) * 1996-10-29 2000-04-04 Micron Technology, Inc. Memory system, method and predecoding circuit operable in different modes for selectively accessing multiple blocks of memory cells for simultaneous writing or erasure
GB9622539D0 (en) * 1996-10-30 1997-01-08 Discovision Ass Galois field multiplier for reed-solomon decoder
US6301357B1 (en) * 1996-12-31 2001-10-09 Ericsson Inc. AC-center clipper for noise and echo suppression in a communications system
EP0958709A2 (en) * 1997-02-04 1999-11-24 GTE Government Systems Corporation Method and apparatus for transmitting atm over deployable line-of-sight channels
JP3439322B2 (ja) * 1997-06-17 2003-08-25 Ｎｅｃエレクトロニクス株式会社 差動入力チョッパ型電圧比較回路
US5991336A (en) * 1997-07-25 1999-11-23 Globespan Technologies, Inc. System and method for optimizing high speed data transmission
US6061826A (en) * 1997-07-29 2000-05-09 Philips Electronics North America Corp. Hardware-optimized reed-solomon decoder for large data blocks
US6055269A (en) * 1997-10-06 2000-04-25 Sun Microsystems, Inc. Adaptive equalization technique using twice sampled non-return to zero data
US6480534B1 (en) 1997-10-08 2002-11-12 Texas Instruments Incorporated Apparatus and method for a reduced component equalizer circuit
US5929662A (en) * 1997-11-04 1999-07-27 Motorola, Inc. Analog comparator and method
US20040160906A1 (en) 2002-06-21 2004-08-19 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on capability
US6133965A (en) * 1998-02-12 2000-10-17 Zenith Electronics Corporation Digital AGC control for high definition television tuner
EP1239676B1 (en) * 1998-05-01 2004-10-13 Texas Instruments Inc. Method and apparatus for capacity increase and enhanced communication performance in CATV networks
US6647069B1 (en) * 1998-05-01 2003-11-11 Texas Instruments Incorporated Method and apparatus for capacity increase and enhanced communications performance in CATV networks
EP1078450A4 (en) * 1998-05-04 2002-11-20 Texas Instruments Inc METHOD AND DEVICE FOR CLOCK RECOVERY FOR REMAINING SIDE TAPE MODULATED SIGNALS
US6680971B1 (en) 1998-05-18 2004-01-20 Sarnoff Corporation Passband equalizer for a vestigial sideband signal receiver
EP0963085A1 (de) * 1998-06-04 1999-12-08 Siemens Aktiengesellschaft Verfahren zur adaptiven Filtereinstellung in einem QAM/CAP-System
JP2007166678A (ja) * 1998-06-30 2007-06-28 Toshiba Corp 光アナログ伝送装置
US6046612A (en) * 1998-07-27 2000-04-04 National Semiconductor Corporation Self-resetting comparator circuit and method
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
EP1119910B1 (en) * 1998-10-13 2004-01-14 STMicroelectronics Pte Ltd. Area efficient realization of coefficient architecture for bit-serial fir, iir filters and combinational/sequential logic structure with zero latency clock output
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6147522A (en) * 1998-12-31 2000-11-14 Cirrus Logic, Inc. Reference voltage circuitry for use in switched-capacitor applications
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US6389562B1 (en) * 1999-06-29 2002-05-14 Sony Corporation Source code shuffling to provide for robust error recovery
US6275554B1 (en) 1999-07-09 2001-08-14 Thomson Licensing S.A. Digital symbol timing recovery network
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6807648B1 (en) 1999-09-13 2004-10-19 Verizon Laboratories Inc. Variable-strength error correction in ad-hoc networks
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
US6433711B1 (en) * 1999-12-14 2002-08-13 Texas Instruments Incorporated System and method for offset error compensation in comparators
JP2003520504A (ja) 2000-01-07 2003-07-02 アウェア， インコーポレイテッド 診断送信モードおよび診断通信を構築するためのシステムおよびその方法
US6944217B1 (en) * 2000-02-01 2005-09-13 International Business Machines Corporation Interleaved finite impulse response filter
US6414615B1 (en) * 2000-03-22 2002-07-02 Raytheon Company Excess delay compensation in a delta sigma modulator analog-to-digital converter
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6996133B2 (en) 2000-04-18 2006-02-07 Zenith Electronics Corporation Digital communication system for transmitting and receiving robustly encoded data
US6532391B1 (en) * 2000-04-20 2003-03-11 Advanced Micro Devices, Inc. Automatic gain control device and method for base band signaling in communications
US6857002B1 (en) * 2000-07-05 2005-02-15 Cirrus Logic, Inc. Integrated circuit with a mode control selecting settled and unsettled output from a filter
US20020015401A1 (en) * 2000-08-03 2002-02-07 Ravi Subramanian Flexible TDMA system architecture
EP1312164B1 (en) * 2000-08-25 2008-05-28 STMicroelectronics Asia Pacific Pte Ltd Method for efficient and zero latency filtering in a long impulse response system
AU7938201A (en) * 2000-11-01 2002-05-02 Nec Australia Pty Ltd Automatic gain control circuit and method for direct sequence spread spectrum receiver
US7072392B2 (en) * 2000-11-13 2006-07-04 Micronas Semiconductors, Inc. Equalizer for time domain signal processing
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6970529B2 (en) * 2001-01-16 2005-11-29 International Business Machines Corporation Unified digital architecture
US7187698B2 (en) 2001-03-13 2007-03-06 Zenith Electronics Corporation Robust digital communication system
US7385949B1 (en) 2001-06-05 2008-06-10 Broadcom Corporation System and method for de-interleaving data in a wireless receiver
US6829297B2 (en) * 2001-06-06 2004-12-07 Micronas Semiconductors, Inc. Adaptive equalizer having a variable step size influenced by output from a trellis decoder
US7190744B2 (en) * 2001-06-07 2007-03-13 Micronas Semiconductors, Inc. Error generation for adaptive equalizer
US6603412B2 (en) * 2001-06-08 2003-08-05 Texas Instruments Incorporated Interleaved coder and method
US7418034B2 (en) * 2001-06-19 2008-08-26 Micronas Semiconductors. Inc. Combined trellis decoder and decision feedback equalizer
US7173550B1 (en) * 2001-07-13 2007-02-06 Cirrus Logic, Inc. Circuits, systems and methods for volume control in low noise 1-bit digital audio systems
AU2002326621A1 (en) * 2001-08-10 2003-02-24 Shakti Systems, Inc. Hybrid comparator and method
DE10141597B4 (de) * 2001-08-24 2017-11-09 Lantiq Deutschland Gmbh Verfahren zum Rekonstruieren von über eine Übertragungsstrecke übertragenen Daten in einem Empfänger und entsprechende Vorrichtung
EP2506508B1 (en) 2001-10-05 2018-05-02 TQ Delta, LLC Systems and methods for multi-pair atm over dsl
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
KR100399970B1 (ko) * 2001-12-18 2003-09-29 주식회사 하이닉스반도체 램프신호 생성장치
US7272203B2 (en) * 2002-04-05 2007-09-18 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop for decoding an offset-QAM modulated signal having a pilot
US7376181B2 (en) * 2002-04-05 2008-05-20 Micronas Semiconductors, Inc. Transposed structure for a decision feedback equalizer combined with a trellis decoder
US6995617B2 (en) * 2002-04-05 2006-02-07 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop
US7321642B2 (en) * 2002-04-05 2008-01-22 Micronas Semiconductors, Inc. Synchronization symbol re-insertion for a decision feedback equalizer combined with a trellis decoder
MXPA04009858A (es) * 2002-04-12 2005-02-14 Thomson Licensing Sa Circuito de control.
DE10219364A1 (de) * 2002-04-30 2003-11-20 Advanced Micro Devices Inc Digitale automatische Verstärkungssteuerung für Sende/Empfangselemente
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US8421804B2 (en) * 2005-02-16 2013-04-16 At&T Intellectual Property Ii, L.P. System and method of streaming 3-D wireframe animations
EP1639774B1 (en) * 2003-06-18 2009-06-03 Panasonic Corporation Method and apparatus for receiving digital multicarrier signals using a wavelet transform
EP1990644A3 (en) * 2003-09-09 2009-09-30 Advantest Corporation Calibration apparatus, testing apparatus, and calibration method
US20050120240A1 (en) * 2003-12-01 2005-06-02 Gary Kiwimagi Secure authenticated network connections
US20050120223A1 (en) * 2003-12-01 2005-06-02 Gary Kiwimagi Secure authenticated network connections
US20050120204A1 (en) * 2003-12-01 2005-06-02 Gary Kiwimagi Secure network connection
US6864812B1 (en) * 2004-02-05 2005-03-08 Broadcom Corporation Hardware efficient implementation of finite impulse response filters with limited range input signals
US20080232444A1 (en) 2004-03-03 2008-09-25 Aware, Inc. Impulse Noise Management
US7236901B2 (en) * 2004-05-14 2007-06-26 Bae Systems Information And Electronic Systems Integration Inc. Digital broadband frequency measurement
WO2005125192A1 (en) * 2004-06-14 2005-12-29 Thomson Licensing System and method for changing television channels in a video signal processor
DE102004043461B4 (de) * 2004-09-08 2008-04-10 Infineon Technologies Ag Signalaufbereitungsanordnung und Verfahren zum Aufbereiten eines Signals
KR100640338B1 (ko) * 2004-09-20 2006-10-30 삼성전자주식회사 채널 전환 시 화면의 끊어짐이 없는 디지털 멀티미디어방송 수신 방법과 장치
KR20100035665A (ko) 2004-09-25 2010-04-05 어웨어, 인크. Ｃｒｃ 카운터 정규화
JP4889646B2 (ja) 2004-10-12 2012-03-07 アウェア， インコーポレイテッド 電気通信環境における資源の共有
DK1800427T3 (da) 2004-10-15 2012-08-13 Aware Inc DMT-symbolgentagelse ved tilstedeværelse af impulsstøj
US7675872B2 (en) * 2004-11-30 2010-03-09 Broadcom Corporation System, method, and apparatus for displaying pictures
US7697600B2 (en) * 2005-07-14 2010-04-13 Altera Corporation Programmable receiver equalization circuitry and methods
TW200710660A (en) * 2005-09-09 2007-03-16 Via Tech Inc Detection and recovery circuit of disk array and its method
CN101310439B (zh) 2005-11-16 2012-10-31 汤姆逊许可证公司 用于电子装置的均衡器接口
KR20140036046A (ko) 2006-04-12 2014-03-24 티큐 델타, 엘엘씨 패킷 재전송 및 메모리 공유
JP4453697B2 (ja) * 2006-12-15 2010-04-21 ソニー株式会社 演算処理装置、および演算処理制御方法、並びにコンピュータ・プログラム
TW200837697A (en) * 2007-03-07 2008-09-16 Tpo Displays Corp Comparator and image display system
JP2009017153A (ja) * 2007-07-04 2009-01-22 Oki Electric Ind Co Ltd カウント値の転送方法と転送回路
GB2452309A (en) * 2007-08-31 2009-03-04 Agilent Technologies Inc Circuit for sample rate conversion
US8115414B2 (en) * 2008-03-12 2012-02-14 Freescale Semiconductor, Inc. LED driver with segmented dynamic headroom control
US8106604B2 (en) * 2008-03-12 2012-01-31 Freescale Semiconductor, Inc. LED driver with dynamic power management
US8035314B2 (en) * 2008-06-23 2011-10-11 Freescale Semiconductor, Inc. Method and device for LED channel managment in LED driver
US8279144B2 (en) * 2008-07-31 2012-10-02 Freescale Semiconductor, Inc. LED driver with frame-based dynamic power management
US7986265B2 (en) 2008-08-29 2011-07-26 Interstate Electronics Corporation Systems and methods for determining a rotational position of an object
US8035315B2 (en) * 2008-12-22 2011-10-11 Freescale Semiconductor, Inc. LED driver with feedback calibration
US8049439B2 (en) * 2009-01-30 2011-11-01 Freescale Semiconductor, Inc. LED driver with dynamic headroom control
US8493003B2 (en) * 2009-02-09 2013-07-23 Freescale Semiconductor, Inc. Serial cascade of minimium tail voltages of subsets of LED strings for dynamic power control in LED displays
US8179051B2 (en) * 2009-02-09 2012-05-15 Freescale Semiconductor, Inc. Serial configuration for dynamic power control in LED displays
US8498349B2 (en) * 2009-03-11 2013-07-30 Texas Instruments Incorporated Demodulation and decoding for frequency modulation (FM) receivers with radio data system (RDS) or radio broadcast data system (RBDS)
KR101004656B1 (ko) 2009-03-17 2011-01-03 (주)오토시스 이중 ａ/ｄ 변환기를 갖는 실시간 지진 신호 측정 장치 및 그 측정 방법
US8040079B2 (en) * 2009-04-15 2011-10-18 Freescale Semiconductor, Inc. Peak detection with digital conversion
CN101567703B (zh) * 2009-05-22 2012-10-10 清华大学 全数字超宽带发射机
US8305007B2 (en) * 2009-07-17 2012-11-06 Freescale Semiconductor, Inc. Analog-to-digital converter with non-uniform accuracy
US7969340B2 (en) * 2009-07-22 2011-06-28 Mediatek Inc. Noise-shaped segmented digital-to-analog converter
US8208213B2 (en) * 2010-06-02 2012-06-26 Lsi Corporation Systems and methods for hybrid algorithm gain adaptation
US8967083B2 (en) * 2011-10-10 2015-03-03 Michael Hoey System and method of sub clinical detecting mastitis
JP5549692B2 (ja) * 2012-02-10 2014-07-16 株式会社デンソー 論理信号絶縁伝送回路
US9043378B2 (en) * 2012-10-01 2015-05-26 Freescale Semiconductor, Inc. Multiply and accumulate feedback
US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
US9651646B2 (en) * 2014-06-24 2017-05-16 Tektronix, Inc. Phase noise correction system for discrete time signal processing
US9497055B2 (en) * 2015-02-27 2016-11-15 Innophase Inc. Method and apparatus for polar receiver with digital demodulation
FR3034593A1 (ko) * 2015-04-02 2016-10-07 Commissariat Energie Atomique
US9983315B1 (en) 2015-05-29 2018-05-29 Interstate Electronics Corporation Satellite navigation receiver for a rapidly rotating object with improved resistance to jamming
US9954553B1 (en) 2015-06-05 2018-04-24 Altera Corporation Circuitry and methods for continuous parallel decoder operation
EP3145143B1 (en) * 2015-09-15 2019-03-20 Nxp B.V. Differential detector
US10158509B2 (en) 2015-09-23 2018-12-18 Innophase Inc. Method and apparatus for polar receiver with phase-amplitude alignment
CN106656876B (zh) * 2015-10-28 2019-07-09 北京华大九天软件有限公司 一种应用于serdes接收端的连续时间线性自适应均衡器电路
US9673828B1 (en) 2015-12-02 2017-06-06 Innophase, Inc. Wideband polar receiver architecture and signal processing methods
US9673829B1 (en) 2015-12-02 2017-06-06 Innophase, Inc. Wideband polar receiver architecture and signal processing methods
US10135459B2 (en) 2016-10-25 2018-11-20 Analog Devices, Inc. ADC with capacitive difference circuit and digital sigma-delta feedback
US10298252B2 (en) 2016-11-13 2019-05-21 Analog Devices, Inc. Dynamic anti-alias filter for analog-to-digital converter front end
US10327659B2 (en) 2016-11-13 2019-06-25 Analog Devices, Inc. Quantization noise cancellation in a feedback loop
CN107071991A (zh) * 2016-12-13 2017-08-18 广州市浩洋电子股份有限公司 一种基于可见光通信的舞台灯控制系统及控制方法
US10122397B2 (en) 2017-03-28 2018-11-06 Innophase, Inc. Polar receiver system and method for Bluetooth communications
US10503122B2 (en) 2017-04-14 2019-12-10 Innophase, Inc. Time to digital converter with increased range and sensitivity
US10108148B1 (en) 2017-04-14 2018-10-23 Innophase Inc. Time to digital converter with increased range and sensitivity
CN107277669A (zh) * 2017-07-31 2017-10-20 歌尔科技有限公司 耳机的数字降噪滤波器生成方法及装置
JP7002146B2 (ja) * 2017-10-23 2022-01-20 ウルトラメモリ株式会社 信号伝送回路及びチップモジュール
US10355709B1 (en) * 2018-08-24 2019-07-16 Analog Devices, Inc. Multiplexed sigma-delta analog-to-digital converter
US10622959B2 (en) 2018-09-07 2020-04-14 Innophase Inc. Multi-stage LNA with reduced mutual coupling
US11095296B2 (en) 2018-09-07 2021-08-17 Innophase, Inc. Phase modulator having fractional sample interval timing skew for frequency control input
US10840921B2 (en) 2018-09-07 2020-11-17 Innophase Inc. Frequency control word linearization for an oscillator
US10355706B1 (en) * 2018-11-28 2019-07-16 Guzik Technical Enterprises Equalization of sub-DAC frequency response misalignments in time-interleaved high-speed digital to analog converters
WO2020146408A1 (en) 2019-01-07 2020-07-16 Innophase, Inc. Using a multi-tone signal to tune a multi-stage low-noise amplifier
US10728851B1 (en) 2019-01-07 2020-07-28 Innophase Inc. System and method for low-power wireless beacon monitor
JP7356866B2 (ja) * 2019-10-31 2023-10-05 ローム株式会社 電圧コンパレータ
CN114116195B (zh) * 2021-10-11 2024-05-14 北京遥测技术研究所 一种基于mpi和多线程的qpsk解相位模糊器
US20240007123A1 (en) * 2022-06-29 2024-01-04 Rohde & Schwarz Gmbh & Co. Kg Multipath d/a converter
US20240072815A1 (en) * 2022-08-30 2024-02-29 Apple Inc. Digital-to-analog converter with localized frequency multiplication circuits

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074199A (en) * 1974-09-16 1978-02-14 U.S. Philips Corporation Vestigial-sideband transmission system for synchronous data signals
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
EP0655849A1 (en) * 1993-11-17 1995-05-31 AT&T Corp. Apparatus and method for avoiding false convergence states of an adaptive circuit included in a digital receiver

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576749B1 (en) * 1992-06-30 1999-06-02 Discovision Associates Data pipeline system
GB1532275A (en) * 1976-01-28 1978-11-15 Nat Res Dev Apparatus for controlling raster-scan displays
EP0101571B1 (en) * 1982-07-30 1987-01-28 Kabushiki Kaisha Toshiba Differential voltage amplifier
US4553129A (en) * 1983-08-05 1985-11-12 Gte Communication Systems Corporation Data transmission by subrate grouping
US4967375A (en) * 1986-03-17 1990-10-30 Star Technologies, Inc. Fast architecture for graphics processor
US4910417A (en) * 1986-09-19 1990-03-20 Actel Corporation Universal logic module comprising multiplexers
JP2565195B2 (ja) * 1986-09-22 1996-12-18 ソニー株式会社 チヨツパ型コンパレ−タ
US4866637A (en) * 1987-10-30 1989-09-12 International Business Machines Corporation Pipelined lighting model processing system for a graphics workstation's shading function
JPH0624399B2 (ja) * 1988-03-22 1994-03-30 富士通株式会社 受信信号処理方式
US5020020A (en) * 1989-04-07 1991-05-28 Digital Equipment Corporation Computer interconnect system with transmit-abort function
JPH03179920A (ja) * 1989-12-08 1991-08-05 Mitsubishi Electric Corp サンプルホールド回路装置
US5311309A (en) * 1990-06-01 1994-05-10 Thomson Consumer Electronics, Inc. Luminance processing system for compressing and expanding video data
GB2250615B (en) * 1990-11-21 1995-06-14 Apple Computer Apparatus for performing direct memory access with stride
JP3031486B2 (ja) * 1990-11-30 2000-04-10 日本テキサス・インスツルメンツ株式会社 差動チョッパ形コンパレータ
US5122875A (en) * 1991-02-27 1992-06-16 General Electric Company An HDTV compression system
US5168356A (en) * 1991-02-27 1992-12-01 General Electric Company Apparatus for segmenting encoded video signal for transmission
US5182642A (en) * 1991-04-19 1993-01-26 General Dynamics Lands Systems Inc. Apparatus and method for the compression and transmission of multiformat data
US5175617A (en) * 1991-12-04 1992-12-29 Vision Applications, Inc. Telephone line picture transmission
US5287420A (en) * 1992-04-08 1994-02-15 Supermac Technology Method for image compression on a personal computer
US5283646A (en) * 1992-04-09 1994-02-01 Picturetel Corporation Quantizer control method and apparatus
US5357544A (en) * 1992-07-21 1994-10-18 Texas Instruments, Incorporated Devices, systems, and methods for composite signal decoding
US5263018A (en) * 1992-07-29 1993-11-16 Thomson Consumer Electronics, Inc. Apparatus for time division multiplexed processing of plural QAM signals
US5309484A (en) * 1992-09-01 1994-05-03 Motorola, Inc. Method and apparatus for asynchronous timing recovery using interpolation filter
JP2762868B2 (ja) * 1992-09-29 1998-06-04 日本電気株式会社 電圧比較回路
US5329619A (en) * 1992-10-30 1994-07-12 Software Ag Cooperative processing interface and communication broker for heterogeneous computing environments
GB9301704D0 (en) * 1993-01-28 1993-03-17 Signal Processors Ltd New digital modem design techniques
US5386239A (en) * 1993-05-03 1995-01-31 Thomson Consumer Electronics, Inc. Multiple QAM digital television signal decoder
JPH0775099A (ja) * 1993-05-07 1995-03-17 Philips Electron Nv マルチプレックス直交振幅変調テレビジョン送信用送信方式、送信機及び受信機
US5425058A (en) * 1993-07-28 1995-06-13 Martin Marietta Corporation MSK phase acquisition and tracking method
US5497152A (en) * 1993-09-13 1996-03-05 Analog Devices, Inc. Digital-to-digital conversion using non-uniform sample rates
DE4417723A1 (de) * 1994-05-20 1995-11-23 Ant Nachrichtentech Einrichtung zum Verarbeiten eines modulierten reellwertigen analogen Fernsehsignals
US5506636A (en) * 1994-06-28 1996-04-09 Samsung Electronics Co., Ltd. HDTV signal receiver with imaginary-sample-presence detector for QAM/VSB mode selection
JP2937027B2 (ja) * 1994-09-07 1999-08-23 日本電気株式会社 コンパレータ
US5566183A (en) * 1994-12-02 1996-10-15 Lucent Technologies Inc. System and method for deinterleaving digital data

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074199A (en) * 1974-09-16 1978-02-14 U.S. Philips Corporation Vestigial-sideband transmission system for synchronous data signals
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
EP0655849A1 (en) * 1993-11-17 1995-05-31 AT&T Corp. Apparatus and method for avoiding false convergence states of an adaptive circuit included in a digital receiver

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