ATE278275T1 - Qam/vsb zweimodenempfänger - Google Patents

Qam/vsb zweimodenempfänger

Info

Publication number
ATE278275T1
ATE278275T1 AT99958781T AT99958781T ATE278275T1 AT E278275 T1 ATE278275 T1 AT E278275T1 AT 99958781 T AT99958781 T AT 99958781T AT 99958781 T AT99958781 T AT 99958781T AT E278275 T1 ATE278275 T1 AT E278275T1
Authority
AT
Austria
Prior art keywords
sub
symbol
phase
signals
quadrature
Prior art date
Application number
AT99958781T
Other languages
English (en)
Inventor
Steven T Jaffe
Tian-Min Liu
Loke Kun Tan
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Application granted granted Critical
Publication of ATE278275T1 publication Critical patent/ATE278275T1/de

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/68—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for wholly or partially suppressing the carrier or one side band
    • 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
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • 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
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/066—Carrier recovery circuits
    • 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
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
    • 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
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals
    • 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
    • H04N5/455—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
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03382—Single of vestigal sideband
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/03503—Tapped delay lines time-recursive as a combination of feedback and prediction filters
    • 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
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H04L2027/0042—Correction of carrier offset using an equaliser the equaliser providing the offset correction per se
    • 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
    • H04L2027/0057—Closed loops quadrature phase
    • 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
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0087—Out-of-band signals, (e.g. pilots)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Burglar Alarm Systems (AREA)
  • Television Systems (AREA)
AT99958781T 1998-11-03 1999-11-03 Qam/vsb zweimodenempfänger ATE278275T1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US10692398P 1998-11-03 1998-11-03
US10703798P 1998-11-03 1998-11-03
US10692198P 1998-11-03 1998-11-03
US10692298P 1998-11-03 1998-11-03
US10693898P 1998-11-03 1998-11-03
US10710398P 1998-11-04 1998-11-04
PCT/US1999/026084 WO2000027066A2 (en) 1998-11-03 1999-11-03 Dual mode qam/vsb receiver

Publications (1)

Publication Number Publication Date
ATE278275T1 true ATE278275T1 (de) 2004-10-15

Family

ID=27557722

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99958781T ATE278275T1 (de) 1998-11-03 1999-11-03 Qam/vsb zweimodenempfänger

Country Status (6)

Country Link
US (7) US6222891B1 (de)
EP (1) EP1127424B1 (de)
AT (1) ATE278275T1 (de)
AU (1) AU1607400A (de)
DE (1) DE69920737T2 (de)
WO (1) WO2000027066A2 (de)

Families Citing this family (163)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0923822B1 (de) * 1996-09-02 2002-11-13 STMicroelectronics N.V. Verbesserungen bei, oder in bezug auf, mehrträgerübertragungssysteme
US6610917B2 (en) * 1998-05-15 2003-08-26 Lester F. Ludwig Activity indication, external source, and processing loop provisions for driven vibrating-element environments
US6842495B1 (en) * 1998-11-03 2005-01-11 Broadcom Corporation Dual mode QAM/VSB receiver
US6222891B1 (en) 1998-11-03 2001-04-24 Broadcom Corporation Timing recovery using the pilot signal in high definition TV
US6775334B1 (en) * 1998-11-03 2004-08-10 Broadcom Corporation Equalization and decision-directed loops with trellis demodulation in high definition TV
US6751228B1 (en) * 1999-03-23 2004-06-15 Yamaha Corporation Packet handler of audio data by isochronous mode
US6738429B1 (en) * 1999-06-01 2004-05-18 Harris Corporation Decision-directed carrier frequency detector and method for QAM
EP1061746A1 (de) * 1999-06-14 2000-12-20 Sony International (Europe) GmbH Kanaldekoder für digitalen Rundfunkempfänger
KR100306213B1 (ko) * 1999-08-24 2001-11-01 윤종용 브이에스비/큐에이엠 공용 수신기의 브이에스비 파일럿 톤제거장치 및 방법
JP2001103394A (ja) * 1999-10-01 2001-04-13 Matsushita Electric Ind Co Ltd デジタル放送受信装置
EP1234420A2 (de) * 1999-12-03 2002-08-28 Broadcom Corporation Viterbi-slicer für turbokoden
KR100348790B1 (ko) * 1999-12-21 2002-08-17 엘지전자주식회사 큐에이엠 수신기
KR100320213B1 (ko) * 2000-02-12 2002-01-10 구자홍 리얼 및 콤플렉스 겸용 채널 등화기
US6889351B1 (en) * 2000-03-30 2005-05-03 Koninklijke Philips Electronics, N.V. Backward compatible multiple data stream transmission method and system for compressed domain signals
US6721366B1 (en) 2000-04-19 2004-04-13 Lockheed Martin Corporation Phase tracking apparatus and method for continuous phase modulated signals
US6794920B1 (en) * 2000-05-11 2004-09-21 Maxtor Corporation Sampled analog DC offset correction for data bus structures
US6442217B1 (en) * 2000-05-22 2002-08-27 Sicom, Inc. Digital communication receiver with digital, IF, I-Q balancer
WO2001093521A2 (en) * 2000-05-31 2001-12-06 Sophia Communications, Inc. Frequency calibration for burst data reception systems
US6683920B1 (en) * 2000-09-22 2004-01-27 Applied Micro Circuits Corporation Dual-loop system and method for frequency acquisition and tracking
KR100351833B1 (ko) * 2000-10-20 2002-09-11 엘지전자 주식회사 디지털 ｔｖ 수신기
US6862324B1 (en) * 2000-10-23 2005-03-01 The Aerospace Corporation Data aided symbol timing system for precoded continuous phase modulated signals
US6748040B1 (en) * 2000-11-09 2004-06-08 Time Domain Corporation Apparatus and method for effecting synchrony in a wireless communication system
US7072392B2 (en) 2000-11-13 2006-07-04 Micronas Semiconductors, Inc. Equalizer for time domain signal processing
US20020122507A1 (en) * 2000-12-15 2002-09-05 Eidson Donald Brian System for carrier phase tracking of multi-dimensional coded symbols
US20020089941A1 (en) * 2001-01-05 2002-07-11 Chien-Meen Hwang Network receiver utilizing sample management buffers
US6839388B2 (en) * 2001-01-22 2005-01-04 Koninklijke Philips Electronics N.V. System and method for providing frequency domain synchronization for single carrier signals
US20040201779A1 (en) * 2001-02-02 2004-10-14 Spilker James J. Symbol clock recovery for the ATSC digital television signal
US6940557B2 (en) 2001-02-08 2005-09-06 Micronas Semiconductors, Inc. Adaptive interlace-to-progressive scan conversion algorithm
US7123307B1 (en) * 2001-02-23 2006-10-17 Silicon Image, Inc. Clock jitter limiting scheme in video transmission through multiple stages
US20020150155A1 (en) * 2001-02-26 2002-10-17 Itzhak Florentin Convergence speed, lowering the excess noise and power consumption of equalizers
DE60231266D1 (de) * 2001-03-07 2009-04-09 Nippon Telegraph & Telephone Schaltung zur Daten-und Taktrückgewinnung
US7039125B2 (en) * 2001-03-12 2006-05-02 Analog Devices, Inc. Equalized SNR power back-off
US7006566B2 (en) * 2001-04-10 2006-02-28 Koninklijke Philips Electronics N.V. Two stage equalizer for trellis coded systems
US6734920B2 (en) * 2001-04-23 2004-05-11 Koninklijke Philips Electronics N.V. System and method for reducing error propagation in a decision feedback equalizer of ATSC VSB receiver
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7151807B2 (en) 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US7502430B2 (en) * 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7483505B2 (en) * 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US8005035B2 (en) * 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7423987B2 (en) * 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US6662176B2 (en) * 2001-05-07 2003-12-09 Hewlett-Packard Development Company, L.P. Database indexing and rolling storage method for time-stamped normalized event data
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
US7409004B2 (en) * 2001-06-19 2008-08-05 Matsushita Electric Industrial Co., Ltd. Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization
US7418034B2 (en) * 2001-06-19 2008-08-26 Micronas Semiconductors. Inc. Combined trellis decoder and decision feedback equalizer
US20020199210A1 (en) * 2001-06-26 2002-12-26 Pingnan Shi Universal test meter for digital signal distribution systems
US6940927B2 (en) * 2001-07-17 2005-09-06 Lockheed Martin Corporation Simplified symbol timing tracking circuit for a CPM modulated signal
JP2003046587A (ja) * 2001-08-03 2003-02-14 Nec Corp 復調器
US6904098B1 (en) * 2001-10-16 2005-06-07 Wideband Semiconductors, Inc. Linear phase robust carrier recovery for QAM modems
US7177364B2 (en) * 2002-01-10 2007-02-13 The Boeing Company System, decoder and method for transmitting, receiving and decoding high-speed digital data signals with reduced electromagnetic emissions
KR100407975B1 (ko) * 2002-02-27 2003-12-01 엘지전자 주식회사 반송파 복구 장치
US7254185B2 (en) * 2002-03-14 2007-08-07 Mediatek Incorporation Method for recovering a digital data content in a communication system and apparatus for performing the same
US7738551B2 (en) * 2002-03-18 2010-06-15 International Business Machines Corporation System and method for processing a high definition television (HDTV) image
US20030206053A1 (en) * 2002-04-04 2003-11-06 Jingsong Xia Carrier recovery for DTV receivers
US20030235259A1 (en) * 2002-04-04 2003-12-25 Jingsong Xia System and method for symbol clock recovery
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
US6980059B2 (en) * 2002-04-05 2005-12-27 Micronas Semiconductors, Inc. Data directed frequency acquisition loop that synchronizes to a received signal by using the redundancy of the data in the frequency domain
US7376181B2 (en) 2002-04-05 2008-05-20 Micronas Semiconductors, Inc. Transposed structure for a decision feedback equalizer combined with a trellis decoder
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
US6995617B2 (en) 2002-04-05 2006-02-07 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop
AU2003224899A1 (en) * 2002-04-16 2003-11-03 Thomson Licensing S.A. Concatenated equalizer/trellis decoder architecture for an hdtv receiver
DE10228999B4 (de) * 2002-06-28 2006-12-14 Advanced Micro Devices, Inc., Sunnyvale Konstellationsmanipulation zur Frequenz/Phasenfehlerkorrektur
AU2003280499A1 (en) 2002-07-01 2004-01-19 The Directv Group, Inc. Improving hierarchical 8psk performance
AR040395A1 (es) 2002-07-03 2005-03-30 Hughes Electronics Corp Metodo y aparato para modulacion por capas
US8272020B2 (en) 2002-08-17 2012-09-18 Disney Enterprises, Inc. System for the delivery and dynamic presentation of large media assets over bandwidth constrained networks
EP1530880A4 (de) * 2002-08-21 2005-12-28 Disney Entpr Inc Digitale zu hause filmsammlung
US7533402B2 (en) 2002-09-30 2009-05-12 Broadcom Corporation Satellite set-top box decoder for simultaneously servicing multiple independent programs for display on independent display device
US7199843B2 (en) * 2002-09-30 2007-04-03 Lsi Logic Corporation Spectral translation for VSB compensation
US7230987B2 (en) * 2002-09-30 2007-06-12 Broadcom Corporation Multiple time-base clock for processing multiple satellite signals
DE10249492A1 (de) * 2002-10-24 2004-05-13 Micronas Gmbh Verfahren und Schaltung zur Erzeugung eines Hilfssymbols zum Einregeln eines QAM-Demodulators
US7230480B2 (en) * 2002-10-25 2007-06-12 The Directv Group, Inc. Estimating the operating point on a non-linear traveling wave tube amplifier
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
ES2357568T3 (es) * 2002-10-25 2011-04-27 The Directv Group, Inc. Método y aparato para adaptar los requisitos de potencia de la portadora de acuerdo con la disponibilidad en sistema de modulación en capas.
CA2503530C (en) * 2002-10-25 2009-12-22 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7463676B2 (en) 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
KR100487332B1 (ko) * 2002-10-31 2005-05-03 엘지전자 주식회사 디지털 ｔｖ의 락 검출 장치
KR100519333B1 (ko) * 2002-12-30 2005-10-07 엘지전자 주식회사 반송파 복구 장치
US6710635B1 (en) * 2003-01-16 2004-03-23 Lockheed Martin Corporation Frequency and phase locked loop
US7336747B2 (en) * 2003-01-17 2008-02-26 Digital Compression Technology Coding system for minimizing digital data bandwidth
KR100510690B1 (ko) * 2003-01-20 2005-08-31 엘지전자 주식회사 디지털 티브이 수신기 및 심볼 클럭 복구 장치
US20040146124A1 (en) * 2003-01-24 2004-07-29 David Shiung Algorithm for timing recovery in a fsk correlation receiver and fsk correlation receiver therewith
WO2004075469A2 (en) * 2003-02-19 2004-09-02 Dotcast Inc. Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver
KR20050115258A (ko) * 2003-02-28 2005-12-07 실리콘 래버래토리즈 , 인코포레이티드 라디오 주파수 수신기를 위한 튜너 및 그와 관련된 방법
US7425995B2 (en) * 2003-02-28 2008-09-16 Silicon Laboratories, Inc. Tuner using a direct digital frequency synthesizer, television receiver using such a tuner, and method therefor
US7447493B2 (en) * 2003-02-28 2008-11-04 Silicon Laboratories, Inc. Tuner suitable for integration and method for tuning a radio frequency signal
KR20040096319A (ko) * 2003-05-09 2004-11-16 삼성전자주식회사 특성이 다른 신호의 간섭을 제거하기 위한 장치 및 그의제거방법
US7532683B2 (en) * 2003-05-16 2009-05-12 Thomson Licensing Unified receiver for layered and hierarchical modulation systems
US7551701B1 (en) * 2003-06-03 2009-06-23 Texas Instruments Incorporated Frequency domain training of prefilters with interference suppression
FR2855922B1 (fr) * 2003-06-06 2005-08-19 Thales Sa Procede et dispositif de traitement des informations provenant d'equipements primaires de vol repondants
KR100546609B1 (ko) * 2003-08-30 2006-01-26 엘지전자 주식회사 심볼 클럭 복조 장치
CN100340109C (zh) * 2003-09-26 2007-09-26 南京Lg新港显示有限公司 载波复原装置
DE10347259B4 (de) 2003-10-08 2013-10-31 Entropic Communications, Inc. Verfahren zum Synchronisieren einer Schaltungsanordnung beim Empfang eines modulierten Signals
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
KR100603608B1 (ko) * 2003-10-29 2006-07-24 한국전자통신연구원 지상파 디지털 텔레비젼 방송 시스템에서 동일채널중계기의 시간지연을 줄이기 위한 복조 장치 및 그 방법
KR100587336B1 (ko) * 2003-12-01 2006-06-08 엘지전자 주식회사 위상보정 결정궤환 채널등화기
US7250987B2 (en) 2004-02-06 2007-07-31 Broadcom Corporation Method and system for an integrated VSB/QAM/NTSC/OOB plug-and-play DTV receiver
JP4408446B2 (ja) * 2004-03-30 2010-02-03 モデサト・コミュニケーションズ・オー・ユー 低い信号対雑音比でｑａｍ信号を送信および受信する方法
US7545888B2 (en) 2004-04-09 2009-06-09 Micronas Semiconductors, Inc. Apparatus for and method of controlling a digital demodulator coupled to an equalizer
US7995648B2 (en) * 2004-04-09 2011-08-09 Trident Microsystems (Far East) Ltd. Advanced digital receiver
US7123063B2 (en) * 2004-04-28 2006-10-17 Broadcom Corporation Supply tracking clock multiplier
US7581161B2 (en) * 2004-05-04 2009-08-25 Analog Devices, Inc. Method and system for widening the synchronization range for a discrete multitone multicarrier single pilot tone system
WO2005114992A1 (en) * 2004-05-12 2005-12-01 Thomson Licensing Dual-mode sync generator in an atsc-dtv receiver
DE602005019039D1 (de) * 2004-05-12 2010-03-11 Thomson Licensing Sa Trägerphasen-mehrdeutigeitskorrektur
US7706483B2 (en) * 2004-05-12 2010-04-27 Thomson Licensing Carrier phase ambiguity correction
US20070171999A1 (en) * 2004-05-12 2007-07-26 Edde Gabriel A Carrier phase ambiguity correction via dc offset
US8320442B2 (en) * 2004-05-14 2012-11-27 Zenith Electronics Llc Channel impulse response estimating decision feedback equalizer
US20080062332A1 (en) * 2004-05-20 2008-03-13 Thomson Licensing S.A. Apparatus and Method for Processing a Pilot Signal
US7634028B2 (en) * 2004-05-27 2009-12-15 Silicon Laboratories Inc. Selecting clock frequencies for baseband devices
US7406137B2 (en) * 2004-08-02 2008-07-29 Realtek Semiconductor Corp. Carrier recovery system and method thereof
WO2006020950A1 (en) * 2004-08-12 2006-02-23 Micronas Semiconductors, Inc. Automatic gain control unit of a receiver
KR100585155B1 (ko) * 2004-08-19 2006-05-30 삼성전자주식회사 변환 도메인의 복소 필터를 이용한 ｄｖｂ-ｔ 수신기의주파수 도메인 채널 평가 방법
KR100577703B1 (ko) * 2004-08-27 2006-05-10 삼성전자주식회사 Ｖｓｂ 방식 수신기를 위한 반송파 복원장치 및 그 복원방법
US7480498B2 (en) * 2004-09-27 2009-01-20 Cisco Technology, Inc. Receiver gain control using a pilot signal
DE102004047424A1 (de) * 2004-09-28 2006-04-06 Micronas Gmbh Schaltung und Verfahren zur Trägerrückgewinnung
DE102004048572A1 (de) 2004-10-04 2006-04-13 Micronas Gmbh Verfahren sowie Schaltungsanordnung zur Unterdrückung einer orthogonalen Störung
KR100594296B1 (ko) * 2004-10-12 2006-06-30 삼성전자주식회사 디지털 텔레비전 수신 장치의 동기신호 검출기 및 그 방법
US7606550B2 (en) * 2004-10-29 2009-10-20 Broadcom Corporation Method and system for a dual mode receiver with low intermediate frequency (IF) and zero second IF
DE102004054893A1 (de) * 2004-11-12 2006-05-24 Micronas Gmbh Verfahren und Schaltungsanordnung zur Kanalfilterung analog oder digital modulierter TV-Signale
DE102004059956B4 (de) * 2004-12-13 2008-09-11 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Taktsynchronisierung bei einem Restseitenbandmodulierten Übertragungssignal
WO2006105496A1 (en) * 2005-03-29 2006-10-05 Zoran Corporation Receiver with decision-directed equalizer
US7474990B2 (en) * 2005-09-29 2009-01-06 Techwell, Inc. Timing error detector for vestigial side band (VSB)
US20070230646A1 (en) * 2006-03-28 2007-10-04 Talbot Gerald R Phase recovery from forward clock
US8570881B2 (en) * 2006-03-28 2013-10-29 Advanced Micro Devices, Inc. Transmitter voltage and receiver time margining
US7675983B2 (en) * 2006-04-14 2010-03-09 Freescale Semiconductor, Inc. Mitigation of DC distortion in OFDM receivers
US20080074497A1 (en) * 2006-09-21 2008-03-27 Ktech Telecommunications, Inc. Method and Apparatus for Determining and Displaying Signal Quality Information on a Television Display Screen
US8761311B2 (en) * 2008-01-14 2014-06-24 Thomson Licensing Data-aided symbol timing recovery loop decoupled from carrier phase offset
US20100283910A1 (en) * 2008-01-14 2010-11-11 Maxim Belotserkovsky Decoupled data-aided timing and carrier tracking loop
US8761310B2 (en) 2008-01-14 2014-06-24 Thomson Licensing Decoupled data-aided carrier tracking loop and symbol timing recovery loop
WO2009128267A1 (ja) * 2008-04-17 2009-10-22 パナソニック株式会社 受信装置とこれを用いた電子機器
US8964991B2 (en) * 2008-06-17 2015-02-24 Himax Tehnologies Limted Method for processing an input composite signal and signal processing apparatus thereof
US7978796B2 (en) * 2008-07-31 2011-07-12 Freescale Semiconductor, Inc. Recovering symbols in a communication receiver
US9571326B2 (en) 2009-03-05 2017-02-14 SeeScan, Inc. Method and apparatus for high-speed data transfer employing self-synchronizing quadrature amplitude modulation
US9160405B1 (en) * 2009-04-16 2015-10-13 Altera Corporation Self-tuning high speed transceiver for IC wireline channel
US8306153B2 (en) * 2009-09-21 2012-11-06 Techwell Llc Method and system for tracking phase in a receiver for 8VSB
WO2011063361A1 (en) * 2009-11-20 2011-05-26 Maxlinear, Inc. Integrated if saw filter in baseband digital design for analog tv (or hybrid) tuner
US8280330B2 (en) * 2009-12-30 2012-10-02 Quintic Holdings Crystal-less clock generation for radio frequency receivers
KR20110119119A (ko) * 2010-04-26 2011-11-02 삼성전자주식회사 잔류 측파대 신호를 처리하는 다이버시티 수신기
US8477877B2 (en) 2010-06-23 2013-07-02 At&T Intellectual Property I, L.P. Feed-forward carrier phase recovery for optical communications
EP2636198A1 (de) 2010-11-03 2013-09-11 Yair Linn Phasendetektor
US8908809B2 (en) 2010-12-15 2014-12-09 At&T Intellectual Property I, L.P. Complexity reduced feed forward carrier recovery methods for M-QAM modulation formats
US8750176B2 (en) 2010-12-22 2014-06-10 Apple Inc. Methods and apparatus for the intelligent association of control symbols
US9634878B1 (en) 2011-09-08 2017-04-25 See Scan, Inc. Systems and methods for data transfer using self-synchronizing quadrature amplitude modulation (QAM)
US8897398B2 (en) * 2012-01-27 2014-11-25 Apple Inc. Methods and apparatus for error rate estimation
US9838226B2 (en) 2012-01-27 2017-12-05 Apple Inc. Methods and apparatus for the intelligent scrambling of control symbols
US9559875B2 (en) * 2012-05-09 2017-01-31 Northrop Grumman Systems Corporation Blind equalization in a single carrier wideband channel
TWI487334B (zh) * 2012-12-26 2015-06-01 Mstar Semiconductor Inc 載波頻率偏移補償裝置及方法
US9450790B2 (en) 2013-01-31 2016-09-20 Apple Inc. Methods and apparatus for enabling and disabling scrambling of control symbols
US9210010B2 (en) 2013-03-15 2015-12-08 Apple, Inc. Methods and apparatus for scrambling symbols over multi-lane serial interfaces
US9544168B2 (en) * 2013-06-06 2017-01-10 Pioneer Corporation Channel estimation device, receiving device, channel estimation method, channel estimation program, and recording medium
US9166628B2 (en) * 2013-12-13 2015-10-20 Alcatel Lucent Use of parity-check coding for carrier-phase estimation in an optical transport system
CN107294886A (zh) * 2016-03-31 2017-10-24 晨星半导体股份有限公司 均衡器装置及使用在均衡器装置中以维特比算法为基础的决策方法
US11011997B2 (en) * 2017-11-15 2021-05-18 Siemens Aktiengesellschaft Pulse width modulation control for a multilevel converter
JP2020191578A (ja) * 2019-05-23 2020-11-26 日本電気株式会社 受信機、受信方法、及び、受信プログラム
WO2022224296A1 (ja) * 2021-04-19 2022-10-27 日本電信電話株式会社 デジタル信号処理装置及びコヒーレントデジタル信号処理装置

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220753A (en) * 1975-06-11 1977-02-16 Motorola Inc Quadrature phase shift keying demodulator
US4320526A (en) * 1980-03-03 1982-03-16 Bell Telephone Laboratories, Incorporated Adaptive phase-jitter tracker
JP2724145B2 (ja) * 1987-03-24 1998-03-09 株式会社日立製作所 搬送波再生装置
US5214501A (en) 1988-10-03 1993-05-25 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier high definition television signal
US5025455A (en) * 1989-11-30 1991-06-18 The United States Of America As Represented By The Administer, National Aeronautics And Space Administration Phase ambiguity resolution for offset QPSK modulation systems
US5233629A (en) 1991-07-26 1993-08-03 General Instrument Corporation Method and apparatus for communicating digital data using trellis coded qam
JP3120511B2 (ja) * 1991-11-21 2000-12-25 ソニー株式会社 ビタビ復号装置
US5311547A (en) 1992-02-03 1994-05-10 At&T Bell Laboratories Partial-response-channel precoding
US5235424A (en) 1992-02-06 1993-08-10 General Electric Company Automatic gain control system for a high definition television signal receiver
US5282023A (en) 1992-05-14 1994-01-25 Hitachi America, Ltd. Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters
US5357544A (en) * 1992-07-21 1994-10-18 Texas Instruments, Incorporated Devices, systems, and methods for composite signal decoding
US5453797A (en) * 1993-02-22 1995-09-26 Massachusetts Institute Of Technology Method and apparatus for decoding broadcast digital HDTV in the presence of quasi-cyclostationary interference
US5410368A (en) 1993-12-29 1995-04-25 Zenith Electronics Corp. Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval
US5602602A (en) * 1994-02-10 1997-02-11 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission having a simplified rejection filter
US5805242A (en) 1994-03-21 1998-09-08 Thomson Consumer Electronics, Inc. Carrier independent timing recovery system for a vestigial sideband modulated signal
US5894334A (en) 1994-03-21 1999-04-13 Rca Thomson Licensing Corporation Carrier recovery system for a vestigial sideband signal
US5706057A (en) 1994-03-21 1998-01-06 Rca Thomson Licensing Corporation Phase detector in a carrier recovery network for a vestigial sideband signal
US5596606A (en) 1994-04-05 1997-01-21 Scientific-Atlanta, Inc. Synchronous detector and methods for synchronous detection
US5479449A (en) * 1994-05-04 1995-12-26 Samsung Electronics Co. Ltd. Digital VSB detector with bandpass phase tracker, as for inclusion in an HDTV receiver.
US5715012A (en) * 1996-03-13 1998-02-03 Samsung Electronics Co., Ltd. Radio receivers for receiving both VSB and QAM digital HDTV signals
US5999223A (en) * 1994-05-23 1999-12-07 Samsung Electronics Co., Ltd. System for controlling the operating mode of an adaptive equalizer within a digital TV signal receiver
US5572249A (en) 1994-07-07 1996-11-05 Philips Electronics North America Corporation Method and apparatus for optimal NTSC rejection filtering and transmitter and receiver comprising same
US5583889A (en) 1994-07-08 1996-12-10 Zenith Electronics Corporation Trellis coded modulation system for HDTV
US5673293A (en) * 1994-09-08 1997-09-30 Hitachi America, Ltd. Method and apparatus for demodulating QAM and VSB signals
US5550596A (en) 1994-11-25 1996-08-27 Thomson Multimedia Sa Digital television signal processing system including a co-channel rejection filter
US5588025A (en) * 1995-03-15 1996-12-24 David Sarnoff Research Center, Inc. Single oscillator compressed digital information receiver
US5659583A (en) 1995-06-02 1997-08-19 Hitachi America, Ltd. Tone canceller for QAM demodulator
KR0170690B1 (ko) * 1995-09-23 1999-03-20 김광호 반송파 및 심볼타이밍 복원완료 검출회로와 그 방법 및 이를 채용한 고해상도 텔레비젼
US5841814A (en) * 1995-10-17 1998-11-24 Paradyne Corporation Sampling system for radio frequency receiver
KR0155900B1 (ko) 1995-10-18 1998-11-16 김광호 위상에러검출방법 및 위상 트래킹 루프회로
US5694419A (en) 1995-11-07 1997-12-02 Hitachi America, Ltd. Shared resource modulator-demodulator circuits for use with vestigial sideband signals
US5757855A (en) * 1995-11-29 1998-05-26 David Sarnoff Research Center, Inc. Data detection for partial response channels
US5872815A (en) 1996-02-16 1999-02-16 Sarnoff Corporation Apparatus for generating timing signals for a digital television signal receiver
US5799037A (en) 1996-02-16 1998-08-25 David Sarnoff Research Center Inc. Receiver capable of demodulating multiple digital modulation formats
US5712873A (en) * 1996-06-04 1998-01-27 Thomson Consumer Electronics, Inc. Multi-mode equalizer in a digital video signal processing system
US6005640A (en) 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
US5966416A (en) * 1996-11-21 1999-10-12 Dsp Group, Inc. Verification of PN synchronization in a spread-spectrum communications receiver
KR100238284B1 (ko) * 1997-05-12 2000-01-15 윤종용 위상 보정 회로 및 그 방법
KR100244767B1 (ko) * 1997-06-25 2000-02-15 전주범 디지탈 자기 기록/재생 시스템의 선택적 동기/비동기 부분 응답 채널 데이터 검출 장치
US6426972B1 (en) * 1998-06-19 2002-07-30 Nxtwave Communications Reduced complexity equalizer for multi mode signaling
US6222891B1 (en) 1998-11-03 2001-04-24 Broadcom Corporation Timing recovery using the pilot signal in high definition TV
US6160443A (en) * 1999-09-08 2000-12-12 Atmel Corporation Dual automatic gain control in a QAM demodulator

Also Published As

Publication number Publication date
US7327819B2 (en) 2008-02-05
US20030058967A1 (en) 2003-03-27
EP1127424A2 (de) 2001-08-29
US6671342B2 (en) 2003-12-30
US20020136329A1 (en) 2002-09-26
US6411659B1 (en) 2002-06-25
US20040081257A1 (en) 2004-04-29
US6493409B1 (en) 2002-12-10
US20040258180A1 (en) 2004-12-23
US6222891B1 (en) 2001-04-24
AU1607400A (en) 2000-05-22
EP1127424B1 (de) 2004-09-29
WO2000027066A2 (en) 2000-05-11
US6771714B2 (en) 2004-08-03
US7027528B2 (en) 2006-04-11
WO2000027066A3 (en) 2000-11-23
DE69920737D1 (de) 2004-11-04
DE69920737T2 (de) 2005-10-13

Similar Documents

Publication Publication Date Title
DE69920737D1 (de) Qam/vsb zweimodenempfänger
US4344178A (en) Costas loop QPSK demodulator
KR100461209B1 (ko) 디지털오디오방송용송신시스템
CA2266372A1 (en) System for digital information transmission, with associated methods and devices
CN101714959B (zh) 模拟/数字信号复合传输发射机和接收机
WO2003065671A1 (en) Method and apparatus for combining phase shift keying and pulse position modulation
CN101729471B (zh) 广播通信系统的模拟信号和数字信号复合传输通信方法
GB2232852A (en) Offset correction
EP0716528A3 (de) Rückgewinnung der Trägerphase und des Symboltakts durch Abschätzung der Phase und des Takts
US9065709B1 (en) Digital radio data system receiver methods and apparatus
WO1999034568A1 (fr) Circuit d'acquisition de signal de synchronisation de trame dans un recepteur
US4438524A (en) Receiver for angle-modulated carrier signals
WO2005101776B1 (en) Single and multiple sinewave modulation and demodulation techniques
JPS58130658A (ja) デジタル通信用変調器復調器セツト
CN109361416A (zh) 一种符号定时恢复电路及其接收机
CA2338922A1 (en) Method and apparatus for reproducing timing, and a demodulating apparatus that uses the method and apparatus for reproducing timing
MY117729A (en) Digital variable symbol timing recovery system for qam
CN101729195B (zh) 模拟信号和数字信息复合传输通信方法
US6421393B1 (en) Technique to transfer multiple data streams over a wire or wireless medium
US6020839A (en) Analog technique to detect asymmetric radio frequency pulses
CA2310368C (en) Sample timing control for demodulation of phase-modulated signals
JPH09247226A (ja) 直交変調波復調装置
EP2341677A2 (de) Vorrichtung und Verfahren zur mehrstufigen analogen Demodulation
EP0757463A3 (de) MPSK-Demodulator
AU2003227984A1 (en) Modified psk constellation to facilitate carrier recovery

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties