JPS5573912A - Group coded record signal data recovering system - Google Patents

Group coded record signal data recovering system

Info

Publication number
JPS5573912A
JPS5573912A JP14991779A JP14991779A JPS5573912A JP S5573912 A JPS5573912 A JP S5573912A JP 14991779 A JP14991779 A JP 14991779A JP 14991779 A JP14991779 A JP 14991779A JP S5573912 A JPS5573912 A JP S5573912A
Authority
JP
Japan
Prior art keywords
signal data
recovering system
record signal
data recovering
group coded
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
JP14991779A
Other languages
English (en)
Japanese (ja)
Inventor
Esu Rematsuku Nikorasu
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.)
Bull HN Information Systems Italia SpA
Original Assignee
Honeywell Information Systems Italia SpA
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 Honeywell Information Systems Italia SpA filed Critical Honeywell Information Systems Italia SpA
Publication of JPS5573912A publication Critical patent/JPS5573912A/ja
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
JP14991779A 1978-11-24 1979-11-19 Group coded record signal data recovering system Pending JPS5573912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/963,639 US4219851A (en) 1978-11-24 1978-11-24 Group coded recording data recovery system

Publications (1)

Publication Number Publication Date
JPS5573912A true JPS5573912A (en) 1980-06-04

Family

ID=25507504

Family Applications (2)

Application Number Title Priority Date Filing Date
JP14991779A Pending JPS5573912A (en) 1978-11-24 1979-11-19 Group coded record signal data recovering system
JP1988078231U Pending JPS6418465U (enExample) 1978-11-24 1988-06-13

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1988078231U Pending JPS6418465U (enExample) 1978-11-24 1988-06-13

Country Status (7)

Country Link
US (1) US4219851A (enExample)
JP (2) JPS5573912A (enExample)
AU (1) AU531322B2 (enExample)
CA (1) CA1143832A (enExample)
DE (1) DE2946995A1 (enExample)
FR (1) FR2442481A1 (enExample)
GB (1) GB2039194B (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062541A1 (en) * 1981-04-07 1982-10-13 Honeywell Information Systems Inc. Phase-locked oscillators
US4891717A (en) * 1986-09-22 1990-01-02 Magnetic Peripherals Inc. Methods and apparatus for performing high density isotropic/perpendicular digital magnetic recording
JPH01248301A (ja) * 1988-03-30 1989-10-03 Kyodo Printing Co Ltd 磁気記録媒体およびそのセキュリティ情報の記録再生方法
JP2589759B2 (ja) * 1988-05-27 1997-03-12 松下電器産業株式会社 データ識別装置
US5790946A (en) 1993-07-15 1998-08-04 Rotzoll; Robert R. Wake up device for a communications system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505569A (enExample) * 1973-05-18 1975-01-21

Family Cites Families (7)

* 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
JPS505569U (enExample) * 1973-05-16 1975-01-21
US3879752A (en) * 1974-04-04 1975-04-22 Iomec Combined sector pulse and data detection system
US3930265A (en) * 1974-06-07 1975-12-30 Vrc California High density magnetic storage system
US4146743A (en) * 1976-08-09 1979-03-27 Hewlett-Packard Company Adaptive sampling decoder-encoder apparatus and method
US4053738A (en) * 1976-09-27 1977-10-11 Honeywell Information Systems Inc. Programmable data envelope detector
US4141494A (en) * 1977-02-25 1979-02-27 Fisher Alan J Digital code reader

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505569A (enExample) * 1973-05-18 1975-01-21

Also Published As

Publication number Publication date
GB2039194A (en) 1980-07-30
FR2442481B1 (enExample) 1983-06-03
CA1143832A (en) 1983-03-29
AU531322B2 (en) 1983-08-18
US4219851A (en) 1980-08-26
AU5296579A (en) 1980-05-29
DE2946995A1 (de) 1980-06-04
JPS6418465U (enExample) 1989-01-30
FR2442481A1 (fr) 1980-06-20
GB2039194B (en) 1983-01-06

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