DE69423989T2 - Kommunikationseinrichtung mit Mehrfachpegelkode - Google Patents

Kommunikationseinrichtung mit Mehrfachpegelkode

Info

Publication number
DE69423989T2
DE69423989T2 DE69423989T DE69423989T DE69423989T2 DE 69423989 T2 DE69423989 T2 DE 69423989T2 DE 69423989 T DE69423989 T DE 69423989T DE 69423989 T DE69423989 T DE 69423989T DE 69423989 T2 DE69423989 T2 DE 69423989T2
Authority
DE
Germany
Prior art keywords
communication device
level code
code
level
communication
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69423989T
Other languages
English (en)
Other versions
DE69423989D1 (de
Inventor
Eisaku Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of DE69423989D1 publication Critical patent/DE69423989D1/de
Application granted granted Critical
Publication of DE69423989T2 publication Critical patent/DE69423989T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/3433—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 using an underlying square constellation
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69423989T 1993-01-14 1994-01-04 Kommunikationseinrichtung mit Mehrfachpegelkode Expired - Lifetime DE69423989T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5005331A JP2845705B2 (ja) 1993-01-14 1993-01-14 多レベル符号化変調通信装置

Publications (2)

Publication Number Publication Date
DE69423989D1 DE69423989D1 (de) 2000-05-25
DE69423989T2 true DE69423989T2 (de) 2000-08-17

Family

ID=11608266

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423989T Expired - Lifetime DE69423989T2 (de) 1993-01-14 1994-01-04 Kommunikationseinrichtung mit Mehrfachpegelkode

Country Status (4)

Country Link
US (1) US5408499A (de)
EP (1) EP0610648B1 (de)
JP (1) JP2845705B2 (de)
DE (1) DE69423989T2 (de)

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CA2116736C (en) * 1993-03-05 1999-08-10 Edward M. Roney, Iv Decoder selection
JP2818534B2 (ja) * 1993-09-28 1998-10-30 日本電気株式会社 符号化変調方式
US5740201A (en) * 1993-12-10 1998-04-14 International Business Machines Corporation Dual differential and binary data transmission arrangement
US5633892A (en) * 1994-07-22 1997-05-27 Alcatel Network Systems, Inc. Hybrid line coding method and apparatus using 4B/3T encoding for payload bits and 1B/1T encoding for framing information
US5799039A (en) * 1994-09-19 1998-08-25 Motorola, Inc. Method and apparatus for error mitigating a received communication signal
US6889356B1 (en) * 1994-11-23 2005-05-03 Cingular Wireless Ii, Llc Cyclic trellis coded modulation
US5675590A (en) * 1994-11-23 1997-10-07 At&T Wireless Services, Inc. Cyclic trellis coded modulation
US5856980A (en) * 1994-12-08 1999-01-05 Intel Corporation Baseband encoding method and apparatus for increasing the transmission rate over a communication medium
FR2742611B1 (fr) 1995-12-19 1998-01-16 Alcatel Telspace Systeme de codage/decodage utilisant la modulation maq-16 codee en blocs a multiniveaux
JPH09181618A (ja) * 1995-12-27 1997-07-11 Nec Corp データ伝送装置
US5946354A (en) * 1996-10-18 1999-08-31 International Business Machines Corporation Hard disk drive read channel with half speed timing
US5812601A (en) * 1996-11-15 1998-09-22 Telefonaktiebolaget Lm Ericsson Coding for higher-level modulation
BR9806049A (pt) * 1997-06-13 2001-09-18 Lucent Technologies Inc Método para codificação em vários nìveis com diversidade de tempo
US7031408B2 (en) * 1997-12-10 2006-04-18 Adtran Inc. Mechanism for reducing recovery time after path loss in coded data communication system having sequential decoder
US6246729B1 (en) 1998-09-08 2001-06-12 Northrop Grumman Corporation Method and apparatus for decoding a phase encoded data signal
US6426978B1 (en) * 1998-10-01 2002-07-30 Ericsson Inc. Digital communication systems and methods for differential and/or amplitude encoding and decoding secondary symbols
EP1113580B1 (de) * 1999-12-28 2015-02-25 Hitachi Kokusai Electric Inc. Koder mit Fehlerkorrektur, Dekoder mit Fehlerkorrektur sowie Datenübertragungsapparat der Koder und Dekoder anwendet
US7190732B2 (en) * 2000-04-06 2007-03-13 Lucent Technologies Inc. Multilevel coding with unequal error protection and time diversity for bandwidth efficient transmission
US7173978B2 (en) * 2000-07-21 2007-02-06 Song Zhang Method and system for turbo encoding in ADSL
US6973579B2 (en) 2002-05-07 2005-12-06 Interdigital Technology Corporation Generation of user equipment identification specific scrambling code for the high speed shared control channel
US6947493B2 (en) * 2003-10-10 2005-09-20 Atmel Corporation Dual phase pulse modulation decoder circuit
US7283011B2 (en) * 2003-10-10 2007-10-16 Atmel Corporation Method for performing dual phase pulse modulation
US7103110B2 (en) * 2003-10-10 2006-09-05 Atmel Corporation Dual phase pulse modulation encoder circuit
KR100520159B1 (ko) * 2003-11-12 2005-10-10 삼성전자주식회사 다중 안테나를 사용하는 직교주파수분할다중 시스템에서간섭신호 제거 장치 및 방법
US7079577B2 (en) * 2004-09-08 2006-07-18 Atmel Corporation Wide window decoder circuit for dual phase pulse modulation
US8719670B1 (en) * 2008-05-07 2014-05-06 Sk Hynix Memory Solutions Inc. Coding architecture for multi-level NAND flash memory with stuck cells
JP6856099B2 (ja) * 2019-09-06 2021-04-07 株式会社明電舎 直列多重インバータの制御装置
TWI702780B (zh) * 2019-12-03 2020-08-21 財團法人工業技術研究院 提升共模瞬變抗擾度的隔離器及訊號產生方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250487B2 (de) * 1972-02-04 1977-12-24
NZ198844A (en) * 1980-11-14 1984-05-31 Plessey Overseas Digital information transmission: two dimensional code
US4483012A (en) * 1983-04-18 1984-11-13 At&T Information Systems Differentially convolutional channel coding with expanded set of signalling alphabets
US4601044A (en) * 1983-11-04 1986-07-15 Racal Data Communications Inc. Carrier-phase adjustment using absolute phase detector
US4583236A (en) * 1983-11-04 1986-04-15 Racal Data Communications Inc. Modified absolute phase detector
EP0209902B1 (de) * 1985-07-24 1993-12-08 Nec Corporation Mehrpegel-Modulator mit einer kompakten Einheit zur Erzeugung eines Fehlerkorrekturkodes
GB8628655D0 (en) * 1986-12-01 1987-01-07 British Telecomm Data coding
US5023889A (en) * 1988-05-31 1991-06-11 California Institute Of Technology Trellis coded multilevel DPSK system with doppler correction for mobile satellite channels
JPH02288752A (ja) * 1989-04-28 1990-11-28 Toshiba Corp 多値ｑａｍ通信方式
JPH02291744A (ja) * 1989-05-02 1990-12-03 Nec Corp 符号化変調方式
JP2545991B2 (ja) * 1989-08-10 1996-10-23 日本電気株式会社 副信号伝送方式
US5113412A (en) * 1990-06-08 1992-05-12 General Datacomm, Inc. Method and apparatus for mapping an eight dimensional constellation of a convolutionally coded communication system
US5115453A (en) * 1990-10-01 1992-05-19 At&T Bell Laboratories Technique for designing a multidimensional signaling scheme
US5233630A (en) * 1991-05-03 1993-08-03 Qualcomm Incorporated Method and apparatus for resolving phase ambiguities in trellis coded modulated data
US5258987A (en) * 1992-04-16 1993-11-02 At&T Bell Laboratories Multilevel coding using trellis-coded modulation and reed-solomon codes

Also Published As

Publication number Publication date
EP0610648A3 (de) 1994-11-02
US5408499A (en) 1995-04-18
EP0610648A2 (de) 1994-08-17
JPH06216958A (ja) 1994-08-05
EP0610648B1 (de) 2000-04-19
JP2845705B2 (ja) 1999-01-13
DE69423989D1 (de) 2000-05-25

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Legal Events

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