ES8501152A1 - Un aparato para leer un portador o soporte de registro que tiene grabada una senal de informacion digital - Google Patents

Un aparato para leer un portador o soporte de registro que tiene grabada una senal de informacion digital

Info

Publication number
ES8501152A1
ES8501152A1 ES530238A ES530238A ES8501152A1 ES 8501152 A1 ES8501152 A1 ES 8501152A1 ES 530238 A ES530238 A ES 530238A ES 530238 A ES530238 A ES 530238A ES 8501152 A1 ES8501152 A1 ES 8501152A1
Authority
ES
Spain
Prior art keywords
record carrier
information signal
read
information
recording
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
Application number
ES530238A
Other languages
English (en)
Other versions
ES530238A0 (es
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
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES8501152A1 publication Critical patent/ES8501152A1/es
Publication of ES530238A0 publication Critical patent/ES530238A0/es
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/463—Controlling, regulating, or indicating speed by using pilot tracking tones embedded in binary coded signals, e.g. using DSV/CDS values of coded signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
  • Vehicle Body Suspensions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Threshing Machine Elements (AREA)

Abstract

APARATO PARA LEER UN PORTADOR O SOPORTE DE REGISTRO QUE TIENE GRABADA UNA SEN/AL DE INFORMACION DIGITAL.COMPRENDE DOS MEMORIAS (2) Y (3) EN LAS QUE SE ALMACENAN LAS PALABRAS DE CANAL DE LOS GRUPOS (W1 Y W2) DEL CODIGO DEL CANAL Y ESTAN CONECTADAS A UN TERMINAL DE ENTRADA (1), AL QUE SE SUMINISTRAN LAS PALABRAS DE SEN/AL DE INFORMACION DIGITAL APLICADA Y QUE SELECCIONA LA PALABRA DE CANAL EN LAS MISMAS; UN DISPOSITIVO DE CONMUTACION (5) DONDE LA SEN/AL DIGITAL ES CONVERTIDA EN UNA SEN/AL DE GRABACION; UN CIRCUITO GENERADOR (8) QUE CONSTA DE CUATRO SALIDAS (9A A 9D) EN LAS QUE ESTAN DISPONIBLES LAS CUATRO SEN/ALES DE SEGUIMIENTO DE FRECUENCIAS (F1 A F
ES530238A 1982-09-20 1984-03-02 Un aparato para leer un portador o soporte de registro que tiene grabada una senal de informacion digital Granted ES530238A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8203619A NL8203619A (nl) 1982-09-20 1982-09-20 Werkwijze voor het optekenen van een digitaal informatiesignaal op een registratiedrager, een registratiedrager voorzien van een dergelijk informatiesignaal en een inrichting voor het uitlezen respectievelijk inschrijven van een dergelijke registratiedrager.

Publications (2)

Publication Number Publication Date
ES8501152A1 true ES8501152A1 (es) 1984-11-01
ES530238A0 ES530238A0 (es) 1984-11-01

Family

ID=19840287

Family Applications (2)

Application Number Title Priority Date Filing Date
ES525666A Expired ES8405544A1 (es) 1982-09-20 1983-09-16 Un metodo de registrar una senal de informacion digital en pistas de informacion de un portador de registro
ES530238A Granted ES530238A0 (es) 1982-09-20 1984-03-02 Un aparato para leer un portador o soporte de registro que tiene grabada una senal de informacion digital

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES525666A Expired ES8405544A1 (es) 1982-09-20 1983-09-16 Un metodo de registrar una senal de informacion digital en pistas de informacion de un portador de registro

Country Status (9)

Country Link
US (1) US4511933A (es)
EP (1) EP0104700B1 (es)
JP (1) JPH06103522B2 (es)
AT (1) ATE25887T1 (es)
AU (1) AU559814B2 (es)
CA (1) CA1213039A (es)
DE (1) DE3370220D1 (es)
ES (2) ES8405544A1 (es)
NL (1) NL8203619A (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07107759B2 (ja) * 1983-09-14 1995-11-15 株式会社日立製作所 回転ヘッドｐｃｍレコ−ダ
JPS61120323A (ja) * 1984-11-14 1986-06-07 Sony Corp デジタル信号の記録方式
NL8801076A (nl) * 1988-04-26 1989-11-16 Philips Nv Inrichting voor het optekenen van een digitaal informatiesignaal.
JP2666367B2 (ja) * 1988-05-24 1997-10-22 ソニー株式会社 Ｍスクランブル回路
JPH0214453A (ja) * 1988-07-01 1990-01-18 Canon Inc ディジタル記録装置
US5095484A (en) * 1989-11-13 1992-03-10 International Business Machines Company Corporation Phase invariant rate 8/10 matched spectral null code for PRML
JPH063943B2 (ja) * 1989-11-13 1994-01-12 インターナショナル・ビジネス・マシーンズ・コーポレーション ２進データ列の符号化方法
JPH0492246A (ja) * 1990-08-06 1992-03-25 Matsushita Electric Ind Co Ltd ディジタル信号記録方式
SG96155A1 (en) * 1990-08-18 2003-05-23 Mitsubishi Electric Corp Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same
JP2637644B2 (ja) * 1990-08-18 1997-08-06 三菱電機株式会社 情報変換方法及びパイロット信号生成方法及び回転磁気ヘッド装置
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
US5349349A (en) * 1991-09-30 1994-09-20 Sony Corporation Modulator circuit for a recording for a digital recording medium
SG85049A1 (en) * 1992-02-19 2001-12-19 Mitsubishi Electric Corp Data conversion method and recording/reproducing apparatus using the same
US5627694A (en) * 1992-02-19 1997-05-06 Mitsubishi Denki Kabushiki Kaisha Recording/reproducing apparatus for recording and reproducing multiple kinds of digital signals having different data amounts per unit time
DE4319389C3 (de) * 1992-06-09 1999-11-25 Mitsubishi Electric Corp Anordnung zum Einfügen einer Frequenzkomponente zu eingegebenen n-Bit-Daten
EP0615236B1 (en) * 1993-03-08 1999-11-24 Matsushita Electric Industrial Co., Ltd. Data recording method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792454A (en) * 1972-01-03 1974-02-12 Honeywell Inf Systems Magnetic strorage system using alternate codes to reduce write current bias
FR2439435A1 (fr) * 1978-10-19 1980-05-16 Cii Honeywell Bull Mode d'ecriture d'informations sur un support d'enregistrement magnetique
JPS5665314A (en) * 1979-11-02 1981-06-03 Sony Corp Encoder for binary signal
DE3045541A1 (de) * 1980-12-03 1982-07-01 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und anordnung zur wiedergabe von auf einenaufzeichnungstraeger in einzelnen spuren aufgezeichneten videosignalen

Also Published As

Publication number Publication date
CA1213039A (en) 1986-10-21
DE3370220D1 (en) 1987-04-16
US4511933A (en) 1985-04-16
ATE25887T1 (de) 1987-03-15
EP0104700B1 (en) 1987-03-11
NL8203619A (nl) 1984-04-16
JPS5975416A (ja) 1984-04-28
AU1925383A (en) 1984-03-29
EP0104700A1 (en) 1984-04-04
AU559814B2 (en) 1987-03-19
ES530238A0 (es) 1984-11-01
JPH06103522B2 (ja) 1994-12-14
ES525666A0 (es) 1984-06-01
ES8405544A1 (es) 1984-06-01

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001