NL7902070A - MFM INFORMATION CODING UNIT WITH WRITE COMPENSATION. - Google Patents

MFM INFORMATION CODING UNIT WITH WRITE COMPENSATION.

Info

Publication number
NL7902070A
NL7902070A NL7902070A NL7902070A NL7902070A NL 7902070 A NL7902070 A NL 7902070A NL 7902070 A NL7902070 A NL 7902070A NL 7902070 A NL7902070 A NL 7902070A NL 7902070 A NL7902070 A NL 7902070A
Authority
NL
Netherlands
Prior art keywords
coding unit
information coding
write compensation
mfm information
mfm
Prior art date
Application number
NL7902070A
Other languages
Dutch (nl)
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of NL7902070A publication Critical patent/NL7902070A/en

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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Dc Digital Transmission (AREA)
NL7902070A 1978-03-16 1979-03-15 MFM INFORMATION CODING UNIT WITH WRITE COMPENSATION. NL7902070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88740378A 1978-03-16 1978-03-16

Publications (1)

Publication Number Publication Date
NL7902070A true NL7902070A (en) 1979-09-18

Family

ID=25391063

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7902070A NL7902070A (en) 1978-03-16 1979-03-15 MFM INFORMATION CODING UNIT WITH WRITE COMPENSATION.

Country Status (6)

Country Link
JP (1) JPS59888B2 (en)
CA (1) CA1172766A (en)
DE (1) DE2909822C2 (en)
FR (1) FR2420250A1 (en)
GB (1) GB2016762B (en)
NL (1) NL7902070A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245263A (en) * 1979-05-14 1981-01-13 Honeywell Information Systems Inc. Write precompensation and write encoding for FM and MFM recording
DE3326912A1 (en) * 1983-07-26 1985-02-07 Siemens AG, 1000 Berlin und 8000 München Device for code conversion
US4756008A (en) * 1986-03-03 1988-07-05 Hitachi, Ltd. Digitized quadrature phase shift keying modulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067422A (en) * 1958-12-24 1962-12-04 Ibm Phase distortion correction for high density magnetic recording
US3482228A (en) * 1965-10-21 1969-12-02 Sperry Rand Corp Write circuit for a phase modulation system
US3685033A (en) * 1970-08-24 1972-08-15 Honeywell Inc Block encoding for magnetic recording systems
US3879342A (en) * 1973-12-28 1975-04-22 Honeywell Inf Systems Pre-recorded digital data compensation system
US4000513A (en) * 1975-07-28 1976-12-28 Computer Peripherals, Inc. Apparatus and method for data recording with peak shift compensation

Also Published As

Publication number Publication date
GB2016762B (en) 1982-08-25
CA1172766A (en) 1984-08-14
DE2909822C2 (en) 1982-06-03
JPS54133019A (en) 1979-10-16
FR2420250B1 (en) 1983-08-12
DE2909822A1 (en) 1979-09-20
FR2420250A1 (en) 1979-10-12
GB2016762A (en) 1979-09-26
JPS59888B2 (en) 1984-01-09

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed