DE69125214T2 - Demodulator/Dekoder-Gerät für digital moduliertes Signal - Google Patents

Demodulator/Dekoder-Gerät für digital moduliertes Signal

Info

Publication number
DE69125214T2
DE69125214T2 DE69125214T DE69125214T DE69125214T2 DE 69125214 T2 DE69125214 T2 DE 69125214T2 DE 69125214 T DE69125214 T DE 69125214T DE 69125214 T DE69125214 T DE 69125214T DE 69125214 T2 DE69125214 T2 DE 69125214T2
Authority
DE
Germany
Prior art keywords
demodulator
modulated signal
decoder device
digitally modulated
digitally
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 - Fee Related
Application number
DE69125214T
Other languages
English (en)
Other versions
DE69125214D1 (de
Inventor
Etsuto Nakatsu
Hiroaki Shimazaki
Haruo Ohta
Masaaki Kobayashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69125214D1 publication Critical patent/DE69125214D1/de
Publication of DE69125214T2 publication Critical patent/DE69125214T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/0047—Decoding adapted to other signal detection operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE69125214T 1990-07-05 1991-07-02 Demodulator/Dekoder-Gerät für digital moduliertes Signal Expired - Fee Related DE69125214T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2177714A JP2553743B2 (ja) 1990-07-05 1990-07-05 ディジタル信号磁気記録再生装置

Publications (2)

Publication Number Publication Date
DE69125214D1 DE69125214D1 (de) 1997-04-24
DE69125214T2 true DE69125214T2 (de) 1997-07-10

Family

ID=16035829

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125214T Expired - Fee Related DE69125214T2 (de) 1990-07-05 1991-07-02 Demodulator/Dekoder-Gerät für digital moduliertes Signal

Country Status (4)

Country Link
US (1) US5255127A (de)
EP (1) EP0465428B1 (de)
JP (1) JP2553743B2 (de)
DE (1) DE69125214T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2673389B2 (ja) * 1991-03-07 1997-11-05 松下電器産業株式会社 データ伝送装置
KR0165277B1 (ko) * 1993-02-27 1999-03-20 김광호 디지탈신호 자기 기록 재생장치
DE4308094A1 (de) * 1993-03-13 1994-09-15 Grundig Emv System zur Übertragung und Vorrichtung zum Empfang von digitalen Fernsehsignalen
JPH0837467A (ja) * 1994-07-26 1996-02-06 Sony Corp ビタビ復号器およびビタビ復号方法
JP3366128B2 (ja) * 1994-09-30 2003-01-14 富士通株式会社 ビタビ復号方式を用いた多値符号化信号の復号器
US5761171A (en) * 1994-10-24 1998-06-02 Sony Corporation Generating data detecting threshold levels from reference patterns recorded in an optical disk, such as a magneto-optical disk
US5841796A (en) * 1995-03-14 1998-11-24 Comsat Corporation Apparatus and method for calculating viterbi path metric using exponentially-weighted moving average
CA2171922C (en) * 1995-03-31 2001-12-11 Joseph Michael Nowack Decoder and method therefor
US6083587A (en) 1997-09-22 2000-07-04 Baxter International Inc. Multilayered polymer structure for medical products
US20030053794A1 (en) * 2001-09-19 2003-03-20 Alexei Krouglov Method and device for digital data magnetic recording and reproduction of composite video signals
KR100566241B1 (ko) * 2001-11-19 2006-03-29 삼성전자주식회사 이동통신시스템에서 연성 심볼 결합 장치 및 방법
US7027532B2 (en) 2001-12-20 2006-04-11 Broadcom Corporation Viterbi decoding with channel and location information
US7136435B2 (en) 2002-03-30 2006-11-14 Broadcom Corporation Modified branch metrics for processing soft decisions to account for phase noise impact on cluster variance
WO2008069803A1 (en) 2006-12-08 2008-06-12 Thomson Licensing Identification of video signals in a video system
US8049982B1 (en) * 2010-07-30 2011-11-01 Lsi Corporation Methods and apparatus for measuring servo address mark distance in a read channel using selective fine phase estimate

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH609510A5 (de) * 1976-06-18 1979-02-28 Ibm
JPS5815843B2 (ja) * 1979-11-16 1983-03-28 株式会社東芝 再生信号処理方式
US4700349A (en) * 1984-02-06 1987-10-13 Codex Corporation Coded modulation system
JPS61198849A (ja) * 1985-02-27 1986-09-03 Fujitsu Ltd 選択制御搬送波再生方式
US4709377A (en) * 1985-03-13 1987-11-24 Paradyne Viterbi decoder for wireline modems
JPS61210435A (ja) * 1985-03-14 1986-09-18 Nec Corp ビタビ最▲ゆう▼推定装置
JPH01211373A (ja) * 1988-02-19 1989-08-24 Matsushita Electric Ind Co Ltd ディジタル磁気録画再生装置
JPH01211372A (ja) * 1988-02-19 1989-08-24 Matsushita Electric Ind Co Ltd ディジタル磁気録画再生装置
JPH01245467A (ja) * 1988-03-28 1989-09-29 Matsushita Electric Ind Co Ltd ディジタル信号磁気記録再生装置
KR930007937B1 (ko) * 1988-03-28 1993-08-21 마쯔시다덴기산교 가부시기가이샤 디지틀신호 자기기록 재생장치

Also Published As

Publication number Publication date
US5255127A (en) 1993-10-19
JPH0464974A (ja) 1992-02-28
EP0465428A3 (en) 1994-07-20
EP0465428B1 (de) 1997-03-19
DE69125214D1 (de) 1997-04-24
EP0465428A2 (de) 1992-01-08
JP2553743B2 (ja) 1996-11-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee