CA2058775A1 - Transmission and decoding of tree-encoder parameters of analogue signals - Google Patents

Transmission and decoding of tree-encoder parameters of analogue signals

Info

Publication number
CA2058775A1
CA2058775A1 CA002058775A CA2058775A CA2058775A1 CA 2058775 A1 CA2058775 A1 CA 2058775A1 CA 002058775 A CA002058775 A CA 002058775A CA 2058775 A CA2058775 A CA 2058775A CA 2058775 A1 CA2058775 A1 CA 2058775A1
Authority
CA
Canada
Prior art keywords
tree
bus
probability
parameters
coder
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.)
Granted
Application number
CA002058775A
Other languages
French (fr)
Other versions
CA2058775C (en
Inventor
Timothy James Moulsley
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.)
Koninklijke Philips NV
Original Assignee
Timothy James Moulsley
N.V. Philips' Gloeilampenfabrieken
Philips Electronics N.V.
Koninklijke Philips Electronics N.V.
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
Priority claimed from GB919100451A external-priority patent/GB9100451D0/en
Priority claimed from GB919106785A external-priority patent/GB9106785D0/en
Application filed by Timothy James Moulsley, N.V. Philips' Gloeilampenfabrieken, Philips Electronics N.V., Koninklijke Philips Electronics N.V. filed Critical Timothy James Moulsley
Publication of CA2058775A1 publication Critical patent/CA2058775A1/en
Application granted granted Critical
Publication of CA2058775C publication Critical patent/CA2058775C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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]
    • H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and 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
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory 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
    • H03M13/25—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
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • 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
    • H04L27/186—Phase-modulated carrier systems, i.e. using phase-shift keying in which the information is carried by both the individual signal points and the subset to which the individual signal points belong, e.g. coset coding or related schemes

Abstract

An analogue signal source (10) is coupled to an analysis means (12) to provide a plurality of parameters on a bus (14). The analysis means also provides a reset signal on a separate line (23) and both the bus (14) and the line (23) are fed to a tree coder (22). The reset signal is applied to the tree coder (22) before each parameter is applied on the bus (14) so that the coder commences from a known position in a coding tree for each parameter. The coded signals are supplied on a bus (24) to a modulator (28) having an output which is coupled to a transmitter (30). A
system for recreating analogue signals coded in this way is also described which estimates partial values of parameters using the probability that each of the possible encoded sequences resulted in the signal from which the analogue signals are to be recreated. The recreating system may also use the probability of occurrence of each of the possible encoded sequences during the tree coding. This latter probability may be derived from the probability density function of the parameters. The tree coder may optionally be arranged to provide trellis coding, for example, for 8-PSK or 16QAM modulation.
CA002058775A 1991-01-09 1992-01-06 Transmission and decoding of tree-encoder parameters of analogue signals Expired - Fee Related CA2058775C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9100451.5 1991-01-09
GB919100451A GB9100451D0 (en) 1991-01-09 1991-01-09 Digitising and recreating analogue signals
GB9106785.0 1991-04-02
GB919106785A GB9106785D0 (en) 1991-04-02 1991-04-02 Channel coding digitised signals

Publications (2)

Publication Number Publication Date
CA2058775A1 true CA2058775A1 (en) 1992-07-10
CA2058775C CA2058775C (en) 2003-08-05

Family

ID=26298239

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002058775A Expired - Fee Related CA2058775C (en) 1991-01-09 1992-01-06 Transmission and decoding of tree-encoder parameters of analogue signals

Country Status (9)

Country Link
US (1) US5233349A (en)
EP (1) EP0494709B1 (en)
JP (1) JP3238448B2 (en)
KR (1) KR100276780B1 (en)
AU (1) AU658597B2 (en)
CA (1) CA2058775C (en)
CS (1) CS3592A3 (en)
DE (1) DE69225619T2 (en)
SG (1) SG44761A1 (en)

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JP2676377B2 (en) * 1988-07-28 1997-11-12 パイオニア株式会社 Disc player
GB9105101D0 (en) * 1991-03-11 1991-04-24 British Telecomm Error burst detection
US5528516A (en) 1994-05-25 1996-06-18 System Management Arts, Inc. Apparatus and method for event correlation and problem reporting
US5862190A (en) * 1995-12-29 1999-01-19 Motorola, Inc. Method and apparatus for decoding an encoded signal
GB9902807D0 (en) * 1999-02-09 1999-03-31 Nds Ltd Decoding an input signal
US20020021770A1 (en) * 2000-05-03 2002-02-21 Beerel Peter A. Reduced-latency soft-in/soft-out module
US7171229B2 (en) * 2001-10-31 2007-01-30 Koninklijke Philips Electronics N.V. Method for operating a radio communication system
US7139687B2 (en) * 2001-12-31 2006-11-21 The Mathworks, Inc. Adaptive lookup table: a graphical simulation component for recursively updating numeric data stored in table form
JP4004521B2 (en) * 2003-02-03 2007-11-07 シャープ株式会社 Encoding apparatus and method, decoding apparatus and method, program, and recording medium
US7379505B2 (en) * 2003-02-13 2008-05-27 Broadcom Corporation Method and apparatus for performing trellis coded modulation of signals for transmission on a TDMA channel of a cable network
KR100683879B1 (en) * 2004-05-06 2007-02-15 삼성전자주식회사 Digital broadcasting transmission/reception capable of improving receiving performance and signal processing method thereof
KR100692596B1 (en) * 2004-05-06 2007-03-13 삼성전자주식회사 Digital broadcasting transmission/reception capable of improving receiving performance and signal processing method thereof
KR100744055B1 (en) * 2004-06-23 2007-07-30 삼성전자주식회사 Digital broadcasting transmission/reception system capable of improving receiving and equalizing performance and signal processing method thereof
US20060133621A1 (en) * 2004-12-22 2006-06-22 Broadcom Corporation Wireless telephone having multiple microphones
US20060147063A1 (en) * 2004-12-22 2006-07-06 Broadcom Corporation Echo cancellation in telephones with multiple microphones
US20070116300A1 (en) * 2004-12-22 2007-05-24 Broadcom Corporation Channel decoding for wireless telephones with multiple microphones and multiple description transmission
US8509703B2 (en) * 2004-12-22 2013-08-13 Broadcom Corporation Wireless telephone with multiple microphones and multiple description transmission
US7599442B2 (en) * 2005-01-20 2009-10-06 Harris Corporation Transmitter synchronization in a distributed transmission system
US20070071139A1 (en) * 2005-09-23 2007-03-29 Guner Arslan Channel decoding using hard and soft decisions
US7639751B2 (en) * 2006-04-04 2009-12-29 Samsung Electronics Co., Ltd. Advanced-VSB system (A-VSB)
US8259868B1 (en) 2007-09-25 2012-09-04 University Of Southern California Conditionally cycle-free generalized tanner graphs based decoding
US8428661B2 (en) * 2007-10-30 2013-04-23 Broadcom Corporation Speech intelligibility in telephones with multiple microphones

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042927A (en) * 1971-06-25 1977-08-16 The United States Of America As Represented By The Secretary Of The Army Ability of a monopulse radar to resolve and track jammers passively
GB2139458B (en) * 1983-04-18 1986-10-01 British Broadcasting Corp Error correction in data transmission or processing
US4713829A (en) * 1985-06-19 1987-12-15 Codex Corporation Coded modulation system with a simplified decoder capable of reducing the effects of channel distortion
FR2616986B1 (en) * 1987-06-17 1989-10-27 Matra SYNDROME DECODING DEVICE OF MESSAGES IN CONVOLUTIONAL CODE
US4968985A (en) * 1988-06-06 1990-11-06 Digital Equipment Corporation Data demodulation system

Also Published As

Publication number Publication date
SG44761A1 (en) 1997-12-19
EP0494709A3 (en) 1993-10-13
CA2058775C (en) 2003-08-05
CS3592A3 (en) 1992-07-15
AU658597B2 (en) 1995-04-27
US5233349A (en) 1993-08-03
EP0494709A2 (en) 1992-07-15
EP0494709B1 (en) 1998-05-27
AU1007092A (en) 1992-07-16
JPH0548546A (en) 1993-02-26
DE69225619T2 (en) 1998-12-24
DE69225619D1 (en) 1998-07-02
JP3238448B2 (en) 2001-12-17
KR100276780B1 (en) 2001-01-15
KR920015765A (en) 1992-08-27

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