CA1122711A - Method and apparatus for encoding and recovering binary digital data - Google Patents

Method and apparatus for encoding and recovering binary digital data

Info

Publication number
CA1122711A
CA1122711A CA281,575A CA281575A CA1122711A CA 1122711 A CA1122711 A CA 1122711A CA 281575 A CA281575 A CA 281575A CA 1122711 A CA1122711 A CA 1122711A
Authority
CA
Canada
Prior art keywords
signal
data
signal change
code
data cell
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
CA281,575A
Other languages
English (en)
French (fr)
Inventor
George V. Jacoby
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.)
Sperry Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Application granted granted Critical
Publication of CA1122711A publication Critical patent/CA1122711A/en
Expired 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Dc Digital Transmission (AREA)
CA281,575A 1976-07-14 1977-06-28 Method and apparatus for encoding and recovering binary digital data Expired CA1122711A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70519976A 1976-07-14 1976-07-14
US705,199 1976-07-14

Publications (1)

Publication Number Publication Date
CA1122711A true CA1122711A (en) 1982-04-27

Family

ID=24832463

Family Applications (1)

Application Number Title Priority Date Filing Date
CA281,575A Expired CA1122711A (en) 1976-07-14 1977-06-28 Method and apparatus for encoding and recovering binary digital data

Country Status (10)

Country Link
JP (1) JPS5311011A (de)
CA (1) CA1122711A (de)
CH (1) CH629347A5 (de)
DE (1) DE2731516C2 (de)
ES (1) ES460639A1 (de)
FR (1) FR2358786A1 (de)
GB (1) GB1590404A (de)
IT (1) IT1083796B (de)
NL (1) NL7707702A (de)
SE (1) SE428255B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55138950A (en) * 1979-04-17 1980-10-30 Mitsubishi Electric Corp Digital signal modulation and demodulation system
JPS55141852A (en) * 1979-04-24 1980-11-06 Sony Corp Data converting system
FR2466913A1 (fr) * 1979-10-01 1981-04-10 Thomson Csf Procede et dispositif de codage de donnees binaires, dispositifs de decodage des donnees codees et systemes de transmission comportant de tels dispositifs
WO1982000912A1 (en) * 1980-09-05 1982-03-18 Furukawa T System for coding and decoding binary data
US4544962A (en) * 1981-07-06 1985-10-01 Matsushita Electric Industrial Co., Ltd. Method and apparatus for processing binary data
JPS5864608A (ja) * 1981-10-15 1983-04-18 Victor Co Of Japan Ltd デイジタル信号記録再生方式
NL8203575A (nl) * 1982-09-15 1984-04-02 Philips Nv Werkwijze voor het coderen van een stroom van databits, inrichting voor het uitvoeren van de werkwijze en inrichting voor het decoderen van een stroom databits.
DE3416547C2 (de) * 1983-10-13 1994-10-06 Philips Nv Aufzeichnungsträger mit Symbolen mit einer vorgegebenen Anzahl von Symbolstellen und optische Aufzeichnungsvorrichtung
US4802154A (en) * 1983-10-13 1989-01-31 Laser Magnetic Storage International Company High density codes for optical recording
JP2615588B2 (ja) * 1987-02-17 1997-05-28 ソニー株式会社 デイジタルパルス復調回路
JP2545817B2 (ja) * 1986-12-27 1996-10-23 ソニー株式会社 デジタルパルス変調回路
JP2014179964A (ja) * 2013-04-16 2014-09-25 Ishida Co Ltd 符号化装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482228A (en) * 1965-10-21 1969-12-02 Sperry Rand Corp Write circuit for a phase modulation system

Also Published As

Publication number Publication date
CH629347A5 (en) 1982-04-15
GB1590404A (en) 1981-06-03
NL7707702A (nl) 1978-01-17
JPS6214909B2 (de) 1987-04-04
SE428255B (sv) 1983-06-13
SE7708112L (sv) 1978-01-15
FR2358786A1 (fr) 1978-02-10
DE2731516C2 (de) 1984-12-06
JPS5311011A (en) 1978-02-01
DE2731516A1 (de) 1978-02-23
IT1083796B (it) 1985-05-25
ES460639A1 (es) 1978-12-01
FR2358786B1 (de) 1982-10-29

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Legal Events

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