HK105394A - Trellis coding method and arrangement for fractional bit rates - Google Patents

Trellis coding method and arrangement for fractional bit rates

Info

Publication number
HK105394A
HK105394A HK105394A HK105394A HK105394A HK 105394 A HK105394 A HK 105394A HK 105394 A HK105394 A HK 105394A HK 105394 A HK105394 A HK 105394A HK 105394 A HK105394 A HK 105394A
Authority
HK
Hong Kong
Prior art keywords
arrangement
coding method
bit rates
trellis coding
fractional bit
Prior art date
Application number
HK105394A
Other languages
English (en)
Inventor
Lee-Fang Wei
Original Assignee
American Telephone & Telegraph
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26663878&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK105394(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of HK105394A publication Critical patent/HK105394A/xx

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
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3477—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel by using the outer points of the constellation or of the constituent two-dimensional constellations
    • 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]
    • 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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • 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
    • H04L27/3438—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 generalised cross constellation

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)
  • Error Detection And Correction (AREA)
HK105394A 1989-05-30 1994-09-29 Trellis coding method and arrangement for fractional bit rates HK105394A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/358,221 US4941154A (en) 1989-05-30 1989-05-30 Trellis coding method and arrangement for fractional bit rates
SG22894A SG22894G (en) 1989-05-30 1994-02-07 Trellis coding method and arrangement for fractional bit rates

Publications (1)

Publication Number Publication Date
HK105394A true HK105394A (en) 1994-10-07

Family

ID=26663878

Family Applications (1)

Application Number Title Priority Date Filing Date
HK105394A HK105394A (en) 1989-05-30 1994-09-29 Trellis coding method and arrangement for fractional bit rates

Country Status (6)

Country Link
US (1) US4941154A (xx)
JP (1) JPH0834443B2 (xx)
FR (1) FR2647990A1 (xx)
GB (1) GB2233862B (xx)
HK (1) HK105394A (xx)
SG (1) SG22894G (xx)

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US5995548A (en) * 1996-11-15 1999-11-30 3Com Corporation Signaling method using multiple modulus shell mapping
US6084883A (en) * 1997-07-07 2000-07-04 3Com Corporation Efficient data transmission over digital telephone networks using multiple modulus conversion
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US7243294B1 (en) * 2000-01-13 2007-07-10 California Institute Of Technology Serial turbo trellis coded modulation using a serially concatenated coder
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KR100454398B1 (ko) * 2001-12-28 2004-10-26 한국전자통신연구원 적응형 모뎀 장치 및, 이에 적용되는 프래그머틱 복호기및 복호 방법
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Also Published As

Publication number Publication date
SG22894G (en) 1995-03-17
FR2647990B1 (xx) 1995-01-06
FR2647990A1 (fr) 1990-12-07
GB9011555D0 (en) 1990-07-11
US4941154A (en) 1990-07-10
JPH0311829A (ja) 1991-01-21
JPH0834443B2 (ja) 1996-03-29
GB2233862A (en) 1991-01-16
GB2233862B (en) 1993-11-17

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Legal Events

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PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)