FR2267668B1 - - Google Patents

Info

Publication number
FR2267668B1
FR2267668B1 FR7511160A FR7511160A FR2267668B1 FR 2267668 B1 FR2267668 B1 FR 2267668B1 FR 7511160 A FR7511160 A FR 7511160A FR 7511160 A FR7511160 A FR 7511160A FR 2267668 B1 FR2267668 B1 FR 2267668B1
Authority
FR
France
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
Application number
FR7511160A
Other languages
French (fr)
Other versions
FR2267668A1 (forum.php
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2267668A1 publication Critical patent/FR2267668A1/fr
Application granted granted Critical
Publication of FR2267668B1 publication Critical patent/FR2267668B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • 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
    • H03M13/33—Synchronisation based on error coding or decoding
    • 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
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FR7511160A 1974-04-10 1975-04-10 Expired FR2267668B1 (forum.php)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US459522A US3872432A (en) 1974-04-10 1974-04-10 Synchronization circuit for a viterbi decoder

Publications (2)

Publication Number Publication Date
FR2267668A1 FR2267668A1 (forum.php) 1975-11-07
FR2267668B1 true FR2267668B1 (forum.php) 1979-03-23

Family

ID=23825140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7511160A Expired FR2267668B1 (forum.php) 1974-04-10 1975-04-10

Country Status (5)

Country Link
US (1) US3872432A (forum.php)
DE (1) DE2515038A1 (forum.php)
ES (1) ES436441A1 (forum.php)
FR (1) FR2267668B1 (forum.php)
GB (1) GB1478736A (forum.php)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038636A (en) * 1975-06-18 1977-07-26 Doland George D Multiple decoding system
US4015238A (en) * 1975-11-24 1977-03-29 Harris Corporation Metric updater for maximum likelihood decoder
US4578800A (en) * 1982-07-12 1986-03-25 Yutaka Yasuda Synchronization circuit for a Viterbi decoder
US4527279A (en) * 1982-07-12 1985-07-02 Kokusai Denshin Denwa Co. Synchronization circuit for a Viterbi decoder
US4539684A (en) * 1983-01-07 1985-09-03 Motorola, Inc. Automatic frame synchronization recovery utilizing a sequential decoder
GB8327084D0 (en) * 1983-10-11 1983-11-09 Gordon J Error correction decoder apparatus
JPS60173930A (ja) * 1984-02-20 1985-09-07 Fujitsu Ltd パイプライン処理ビタビ復号器
JPS60180222A (ja) * 1984-02-27 1985-09-14 Nec Corp 符号誤り訂正装置
US4641327A (en) * 1985-07-09 1987-02-03 Codex Corporation Frame synchronization in trellis-coded communication systems
JPS62193323A (ja) * 1986-02-19 1987-08-25 Sony Corp ヴイタビ復号装置
US4802174A (en) * 1986-02-19 1989-01-31 Sony Corporation Viterbi decoder with detection of synchronous or asynchronous states
EP0302511B1 (en) * 1987-08-07 1993-12-29 Nec Corporation Sequential decoder having a short resynchronization interval
JPS6490621A (en) * 1987-09-30 1989-04-07 Nec Corp Decoder
US5311523A (en) * 1988-12-08 1994-05-10 Kabushiki Kaisha Toshiba Carrier phase synchronous type maximum likelihood decoder
JP2841460B2 (ja) * 1989-04-20 1998-12-24 ソニー株式会社 画像データの伝送方法、送信装置、受信装置及び送受信装置
US5375129A (en) * 1990-07-19 1994-12-20 Technophone Limited Maximum likelihood sequence detector
GB2246272B (en) * 1990-07-19 1994-09-14 Technophone Ltd Maximum likelihood sequence detector
US5502735A (en) * 1991-07-16 1996-03-26 Nokia Mobile Phones (U.K.) Limited Maximum likelihood sequence detector
FR2725098B1 (fr) * 1994-09-27 1996-11-22 Alcatel Telspace Dispositif de synchronisation de branches d'un decodeur de viterbi compris dans un recepteur de donnees numeriques codees en treillis multidimensionnel
DE19517405A1 (de) * 1995-05-16 1996-11-21 Thomson Brandt Gmbh Signalverarbeitungssystem für digitale Signale
CN1126253C (zh) * 1996-10-25 2003-10-29 松下电器产业株式会社 确定维特比同步计算电路中的度量数值阈值的方法和装置
US6785353B1 (en) * 2000-09-06 2004-08-31 Telogy Networks, Inc. Synchronization loss detection in a V.34 receiver
DE102007053091A1 (de) * 2007-11-07 2009-05-14 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Decodierung von faltungscodierten Signalen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227999A (en) * 1962-06-15 1966-01-04 Bell Telephone Labor Inc Continuous digital error-correcting system
US3665396A (en) * 1968-10-11 1972-05-23 Codex Corp Sequential decoding
US3697950A (en) * 1971-02-22 1972-10-10 Nasa Versatile arithmetic unit for high speed sequential decoder
GB1385302A (en) * 1972-01-07 1975-02-26 Thomson Csf Error-detecting decoding device of the weighting and feed-back type
US3789359A (en) * 1972-10-04 1974-01-29 Harris Intertype Corp Synchronism indicator for a convolutional decoder
US3789360A (en) * 1972-10-13 1974-01-29 Harris Intertype Corp Convolutional decoder

Also Published As

Publication number Publication date
GB1478736A (en) 1977-07-06
US3872432A (en) 1975-03-18
ES436441A1 (es) 1977-01-01
DE2515038A1 (de) 1975-10-23
FR2267668A1 (forum.php) 1975-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse