DE69027400T2 - Gerät zur digitalen Modulation und Gerät zur digitalen Demodulation - Google Patents

Gerät zur digitalen Modulation und Gerät zur digitalen Demodulation

Info

Publication number
DE69027400T2
DE69027400T2 DE69027400T DE69027400T DE69027400T2 DE 69027400 T2 DE69027400 T2 DE 69027400T2 DE 69027400 T DE69027400 T DE 69027400T DE 69027400 T DE69027400 T DE 69027400T DE 69027400 T2 DE69027400 T2 DE 69027400T2
Authority
DE
Germany
Prior art keywords
digital
modulation device
demodulation
digital modulation
demodulation device
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
DE69027400T
Other languages
English (en)
Other versions
DE69027400D1 (de
Inventor
Yoichiro Sako
Tamotsu Yamagami
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69027400D1 publication Critical patent/DE69027400D1/de
Publication of DE69027400T2 publication Critical patent/DE69027400T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • 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)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69027400T 1989-10-31 1990-10-26 Gerät zur digitalen Modulation und Gerät zur digitalen Demodulation Expired - Fee Related DE69027400T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1284403A JP2805096B2 (ja) 1989-10-31 1989-10-31 ディジタル変調方法及び復調方法

Publications (2)

Publication Number Publication Date
DE69027400D1 DE69027400D1 (de) 1996-07-18
DE69027400T2 true DE69027400T2 (de) 1997-01-30

Family

ID=17678120

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69027400T Expired - Fee Related DE69027400T2 (de) 1989-10-31 1990-10-26 Gerät zur digitalen Modulation und Gerät zur digitalen Demodulation

Country Status (4)

Country Link
US (1) US5155485A (de)
EP (1) EP0426033B1 (de)
JP (1) JP2805096B2 (de)
DE (1) DE69027400T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020963A1 (de) * 1990-06-30 1992-01-02 Philips Patentverwaltung Uebertragungseinrichtung mit einem blockcode-codiertem hauptkanal und mit einem zusatzkanal
EP0557130B1 (de) * 1992-02-19 2000-05-17 Mitsubishi Denki Kabushiki Kaisha Datenumsetzungsverfahren und Aufzeichnungs-/Wiedergabegerät zur Durchführung desselben
JP3528929B2 (ja) * 1993-09-22 2004-05-24 ソニー株式会社 磁気記録装置
JPH08287622A (ja) * 1995-04-12 1996-11-01 Toshiba Corp データ復号装置及び方法と記録媒体
JP3457093B2 (ja) * 1995-04-14 2003-10-14 松下電器産業株式会社 記録媒体並びにデジタル変復調方法およびその装置
US6081623A (en) * 1995-10-11 2000-06-27 Citrix Systems, Inc. Method for lossless bandwidth compression of a series of glyphs
US5883925A (en) * 1995-11-16 1999-03-16 International Business Machines Corporation Pulse code modulation compression mechanism
US7127525B2 (en) 2000-05-26 2006-10-24 Citrix Systems, Inc. Reducing the amount of graphical line data transmitted via a low bandwidth transport protocol mechanism
US7376695B2 (en) 2002-03-14 2008-05-20 Citrix Systems, Inc. Method and system for generating a graphical display for a remote terminal session
US8671213B2 (en) 2002-03-14 2014-03-11 Citrix Systems, Inc. Methods and apparatus for generating graphical and media displays at a client
US20050147248A1 (en) * 2002-03-28 2005-07-07 Koninklijke Philips Electronics N.V. Window shaping functions for watermarking of multimedia signals
US8171169B2 (en) 2005-03-14 2012-05-01 Citrix Systems, Inc. Method and apparatus for updating a graphical display in a distributed processing environment
US8423673B2 (en) 2005-03-14 2013-04-16 Citrix Systems, Inc. Method and apparatus for updating a graphical display in a distributed processing environment using compression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL186790C (nl) * 1980-07-14 1991-02-18 Philips Nv Werkwijze voor het coderen van een reeks van blokken tweetallige databits in een reeks van blokken van tweetallige kanaalbits, alsmede modulator, demodulator en registratiedrager te gebruiken bij de werkwijze.
GB2109200B (en) * 1981-09-15 1985-07-03 British Broadcasting Corp Digital data encoding
JPH0721942B2 (ja) * 1984-10-11 1995-03-08 ソニー株式会社 チヤンネル符号化方法
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
EP0426033A2 (de) 1991-05-08
US5155485A (en) 1992-10-13
JPH03145335A (ja) 1991-06-20
JP2805096B2 (ja) 1998-09-30
EP0426033A3 (en) 1992-01-22
DE69027400D1 (de) 1996-07-18
EP0426033B1 (de) 1996-06-12

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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