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DE68924733D1 - Digitaler Modulator und Demodulator. - Google Patents

Digitaler Modulator und Demodulator.

Info

Publication number
DE68924733D1
DE68924733D1 DE68924733T DE68924733T DE68924733D1 DE 68924733 D1 DE68924733 D1 DE 68924733D1 DE 68924733 T DE68924733 T DE 68924733T DE 68924733 T DE68924733 T DE 68924733T DE 68924733 D1 DE68924733 D1 DE 68924733D1
Authority
DE
Germany
Prior art keywords
demodulator
digital modulator
modulator
digital
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
DE68924733T
Other languages
English (en)
Other versions
DE68924733T2 (de
Inventor
Shinichi Tanaka
Hiromichi Ishibashi
Akira Matsubara
Tsuyoshi Okada
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
Priority claimed from JP63144261A external-priority patent/JPH01311726A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE68924733D1 publication Critical patent/DE68924733D1/de
Application granted granted Critical
Publication of DE68924733T2 publication Critical patent/DE68924733T2/de
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
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/02—Reversible analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
    • H03M5/145—Conversion to or from block codes or representations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE68924733T 1988-06-10 1989-06-12 Digitaler Modulator und Demodulator. Expired - Fee Related DE68924733T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63144261A JPH01311726A (ja) 1988-06-10 1988-06-10 コード変換装置と復号装置
JP17128088 1988-07-08

Publications (2)

Publication Number Publication Date
DE68924733D1 true DE68924733D1 (de) 1995-12-14
DE68924733T2 DE68924733T2 (de) 1996-05-30

Family

ID=26475730

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68924733T Expired - Fee Related DE68924733T2 (de) 1988-06-10 1989-06-12 Digitaler Modulator und Demodulator.

Country Status (4)

Country Link
US (1) US5016258A (de)
EP (1) EP0351055B1 (de)
KR (1) KR930000453B1 (de)
DE (1) DE68924733T2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH088498B2 (ja) * 1989-06-13 1996-01-29 ティアツク株式会社 変調信号再生回路
GB2247138B (en) * 1990-06-29 1994-10-12 Digital Equipment Corp System and method for error detection and reducing simultaneous switching noise
EP0473412A1 (de) * 1990-08-31 1992-03-04 Matsushita Electric Industrial Co., Ltd. Verfahren zur Aufzeichnung digitaler Signale
JP2741112B2 (ja) * 1991-03-29 1998-04-15 シャープ株式会社 ディジタル変調方式およびディジタル変調装置
EP0511498B1 (de) * 1991-03-30 1998-12-09 Kabushiki Kaisha Toshiba Kodiereinrichtung für digitale Signale mit verbesserter Kanal-Blockkodierung
US5142167A (en) * 1991-05-01 1992-08-25 International Business Machines Corporation Encoding for simultaneous switching output noise reduction
JP2691480B2 (ja) * 1991-05-20 1997-12-17 富士通株式会社 ２ｂ４ｂ符号則逆変換におけるディスパリティ検出回路
DE69118891T2 (de) * 1991-10-14 1996-10-24 Ibm Flexibles Kodierungs-Verfahren und Architektur für Hochgeschwindigkeits-Datenübertragung und Aufzeichnung
US5625644A (en) * 1991-12-20 1997-04-29 Myers; David J. DC balanced 4B/8B binary block code for digital data communications
SG85049A1 (en) * 1992-02-19 2001-12-19 Mitsubishi Electric Corp Data conversion method and recording/reproducing apparatus using the same
JPH05234279A (ja) * 1992-02-24 1993-09-10 Sony Corp 最尤復号装置及びこれを用いた再生データ復調装置
US5805632A (en) * 1992-11-19 1998-09-08 Cirrus Logic, Inc. Bit rate doubler for serial data transmission or storage
US5341134A (en) * 1992-12-30 1994-08-23 Datatape Incorporated Simple coding scheme for DC free channel codes of form M/N, where M=N-1 and M and N are positive integers
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
JP2947081B2 (ja) * 1994-06-29 1999-09-13 日本ビクター株式会社 デジタル情報変調装置
JP3610089B2 (ja) * 1994-06-29 2005-01-12 キヤノン株式会社 ディジタル変調回路及びディジタル記録装置
GB9506725D0 (en) 1995-03-31 1995-05-24 Hooley Anthony Improvements in or relating to loudspeakers
US5608397A (en) * 1995-08-15 1997-03-04 Lucent Technologies Inc. Method and apparatus for generating DC-free sequences
US5790057A (en) * 1996-08-12 1998-08-04 Lanart Corporation Method of and system for the efficient encoding of data
TW362305B (en) * 1996-10-18 1999-06-21 Koninkl Philips Electronics Nv Apparatus and method for converting a sequence of m-bit information words into a modulated signal
JP3201352B2 (ja) * 1998-07-17 2001-08-20 日本電気株式会社 同期化回路
KR20010041154A (ko) 1998-12-21 2001-05-15 요트.게.아. 롤페즈 엔-비트 소스어를 대응하는 엠-비트 채널어로 인코딩하고, 엠-비트 채널어를 대응하는 엔-비트 소스어로 디코딩하는 장치
KR100638960B1 (ko) 1999-09-29 2006-10-25 1...리미티드 음향 지향 방법 및 장치
GB2376595B (en) 2001-03-27 2003-12-24 1 Ltd Method and apparatus to create a sound field
KR100444982B1 (ko) * 2001-06-05 2004-08-21 삼성전자주식회사 직류 성분이 제거되는 코드 변환 및 그 복조 방법
GB0124352D0 (en) 2001-10-11 2001-11-28 1 Ltd Signal processing device for acoustic transducer array
KR20030093489A (ko) 2002-06-03 2003-12-11 삼성전자주식회사 신호 복조 장치 및 방법
JP3769753B2 (ja) * 2003-03-24 2006-04-26 ソニー株式会社 符号化装置および符号化方法、記録媒体、並びにプログラム
WO2005020440A1 (en) * 2003-08-13 2005-03-03 Seagate Technology Llc Dc-free code design with increased distance between code words
KR101001541B1 (ko) * 2007-05-29 2010-12-17 한국과학기술원 다중 입출력 무선통신 시스템에서 큐알분해 기반의 신호검출 장치 및 방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689899A (en) * 1971-06-07 1972-09-05 Ibm Run-length-limited variable-length coding with error propagation limitation
IT984397B (it) * 1973-03-02 1974-11-20 Cselt Centro Studi Lab Telecom Codificatore non lineare multi livello per trasmissione di se gnali numerici
US4020282A (en) * 1974-01-14 1977-04-26 General Dynamics Corporation High density data processing system
JPS55141852A (en) * 1979-04-24 1980-11-06 Sony Corp Data converting system
US4538203A (en) * 1983-04-11 1985-08-27 Systron Donner Corp. Passive mass-spring type of sensing device having electronic damping
US4802154A (en) * 1983-10-13 1989-01-31 Laser Magnetic Storage International Company High density codes for optical recording
US4598326A (en) * 1983-10-18 1986-07-01 Honeywell Inc. Digital recording apparatus with disparity reducing encoder
NL8402444A (nl) * 1984-01-20 1986-03-03 Philips Nv Werkwijze voor het overdragen van informatie, codeerinrichting voor toepassing in de werkwijze en decodeerinrichting voor toepassing in de werkwijze.
NL8402445A (nl) * 1984-01-20 1985-08-16 Philips Nv Werkwijze voor het coderen van n-bits informatiewoorden naar m-bits codewoorden, inrichting voor het uitvoeren van die werkwijze, werkwijze voor het decoderen van m-bits codewoorden naar n-bits informatiewoorden en inrichting voor het uitvoeren van die werkwijze.
US4599717A (en) * 1984-02-08 1986-07-08 Optical Storage International - U.S. Direct read after write verify using differential detection
US4646281A (en) * 1984-02-08 1987-02-24 Laser Magnetic Storage International Company Read channel for an optical recorder
US4606016A (en) * 1984-02-08 1986-08-12 Optical Storage International Write protection and data detection using differential detector
EP0295759A3 (en) * 1984-02-08 1989-05-03 Laser Magnetic Storage International Company Apparatus for using differential data detection in write protection of an optical recorder
NL8603164A (nl) * 1986-12-12 1988-07-01 Optical Storage Int Werkwijze voor het overdragen van n-bit informatiewoorden, informatieoverdrachtsysteem voor het uitvoeren van de werkwijze, alsmede een kodeerinrichting en dekodeerinrichting voor toepassing in het informatieoverdrachtsysteem.

Also Published As

Publication number Publication date
EP0351055A1 (de) 1990-01-17
KR910002137A (ko) 1991-01-31
EP0351055B1 (de) 1995-11-08
US5016258A (en) 1991-05-14
KR930000453B1 (ko) 1993-01-21
DE68924733T2 (de) 1996-05-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee