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JPS5211916A - Signalization method - Google Patents

Signalization method

Info

Publication number
JPS5211916A
JPS5211916A JP8733475A JP8733475A JPS5211916A JP S5211916 A JPS5211916 A JP S5211916A JP 8733475 A JP8733475 A JP 8733475A JP 8733475 A JP8733475 A JP 8733475A JP S5211916 A JPS5211916 A JP S5211916A
Authority
JP
Japan
Prior art keywords
electric current
digital information
level constituent
mfm
transformed
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.)
Pending
Application number
JP8733475A
Other languages
Japanese (ja)
Inventor
Toru Murai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8733475A priority Critical patent/JPS5211916A/en
Publication of JPS5211916A publication Critical patent/JPS5211916A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE: As for the digital information recording apparatus using the record modulation system of MFM, NRZ etc., the digital information which is separated in every fixed bit length is to transformed to the code series containing no DC level constituent, and the generation of recording electric current allows, as a result, the writing-in electric current driving series can use such an element which is impossible to transmit a DC level constituent as a combined trans..
COPYRIGHT: (C)1977,JPO&Japio
JP8733475A 1975-07-18 1975-07-18 Signalization method Pending JPS5211916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8733475A JPS5211916A (en) 1975-07-18 1975-07-18 Signalization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8733475A JPS5211916A (en) 1975-07-18 1975-07-18 Signalization method

Publications (1)

Publication Number Publication Date
JPS5211916A true JPS5211916A (en) 1977-01-29

Family

ID=13911963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8733475A Pending JPS5211916A (en) 1975-07-18 1975-07-18 Signalization method

Country Status (1)

Country Link
JP (1) JPS5211916A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142415A (en) * 1977-05-18 1978-12-12 Ishikawatoshi Tekko Multiple conveying system for molding roofing tiles in which lower mold is movable
JPS545575U (en) * 1977-06-11 1979-01-13
JPS5632851A (en) * 1979-08-24 1981-04-02 Matsushita Electric Ind Co Ltd Coding and decoding system for binary information
JPS59200561A (en) * 1983-04-26 1984-11-13 Nec Corp Code transmission system
JPS6012840A (en) * 1983-07-02 1985-01-23 Sansui Electric Co Digital modulation system
JPH07170298A (en) * 1993-06-11 1995-07-04 Inmos Ltd Message transmission system
US6144324A (en) * 1997-03-13 2000-11-07 Olympus Optical Co., Ltd. Method of modulating and demodulating digital data and digital data modulator/demodulator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142415A (en) * 1977-05-18 1978-12-12 Ishikawatoshi Tekko Multiple conveying system for molding roofing tiles in which lower mold is movable
JPS545575U (en) * 1977-06-11 1979-01-13
JPS5632851A (en) * 1979-08-24 1981-04-02 Matsushita Electric Ind Co Ltd Coding and decoding system for binary information
JPS59200561A (en) * 1983-04-26 1984-11-13 Nec Corp Code transmission system
JPS6012840A (en) * 1983-07-02 1985-01-23 Sansui Electric Co Digital modulation system
JPH07170298A (en) * 1993-06-11 1995-07-04 Inmos Ltd Message transmission system
US6144324A (en) * 1997-03-13 2000-11-07 Olympus Optical Co., Ltd. Method of modulating and demodulating digital data and digital data modulator/demodulator

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