NO941068L - Fremgangsmåte og apparat til amplitudekompensert skrivekorreksjon - Google Patents

Fremgangsmåte og apparat til amplitudekompensert skrivekorreksjon

Info

Publication number
NO941068L
NO941068L NO941068A NO941068A NO941068L NO 941068 L NO941068 L NO 941068L NO 941068 A NO941068 A NO 941068A NO 941068 A NO941068 A NO 941068A NO 941068 L NO941068 L NO 941068L
Authority
NO
Norway
Prior art keywords
write correction
amplitude compensated
amplitude
compensated write
write
Prior art date
Application number
NO941068A
Other languages
English (en)
Other versions
NO941068D0 (no
Inventor
John Eric Heinz
Robert Jean Youngquist
Theodore Albert Schwartz
Richard Werner Molstad
Michael Edward Hamerly
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of NO941068D0 publication Critical patent/NO941068D0/no
Publication of NO941068L publication Critical patent/NO941068L/no

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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G11B5/035—Equalising
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

En justerbar skrivekorrigert registreringskrets for regi- strering av data på et magnetbånd kan variabelt justere amplituden av skrivekorreksjonspulsen relativt til databølgeformen i en grad som enten kan forhåndsinnstilles eller bestemmes under drift.
NO941068A 1993-03-26 1994-03-23 Fremgangsmåte og apparat til amplitudekompensert skrivekorreksjon NO941068L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/037,285 US5339202A (en) 1993-03-26 1993-03-26 Method and apparatus for amplitude compensated write equalization

Publications (2)

Publication Number Publication Date
NO941068D0 NO941068D0 (no) 1994-03-23
NO941068L true NO941068L (no) 1994-09-27

Family

ID=21893511

Family Applications (1)

Application Number Title Priority Date Filing Date
NO941068A NO941068L (no) 1993-03-26 1994-03-23 Fremgangsmåte og apparat til amplitudekompensert skrivekorreksjon

Country Status (5)

Country Link
US (1) US5339202A (no)
EP (1) EP0617406A3 (no)
JP (1) JPH06301907A (no)
KR (1) KR940022456A (no)
NO (1) NO941068L (no)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5790331A (en) * 1995-08-11 1998-08-04 Mitel Semiconductor Americas Inc. Current control circuit and method for programmable read write preamplifier
US5754593A (en) * 1995-11-29 1998-05-19 Eastman Kodak Company Write equalization for partial response channels
US5822141A (en) * 1996-03-27 1998-10-13 International Business Machines Corporation High speed FET write driver for an inductive head
KR100458753B1 (ko) * 1996-12-05 2005-04-13 삼성전자주식회사 기록전류안정화회로
EP0959470B1 (en) * 1998-05-19 2005-07-27 Hewlett-Packard Company, A Delaware Corporation Calibrating write pre-equalisation in a data storage device
EP0959469A1 (en) * 1998-05-19 1999-11-24 Hewlett-Packard Company Double pulse write driver
EP0959468A1 (en) 1998-05-19 1999-11-24 Hewlett-Packard Company Double pulse write driver
EP0965989A1 (en) * 1998-05-19 1999-12-22 Hewlett-Packard Company Calibrating write compensation in a data storage device
US6055117A (en) * 1998-06-09 2000-04-25 Hewlett-Packard Company Systems and method having data encoded with edge placement equalization
US7139142B2 (en) * 2004-10-29 2006-11-21 International Business Machines Corporation Determination of magnetic tape write quality employing write equalization transitions
US7480110B2 (en) * 2005-04-13 2009-01-20 Hewlett-Packard Development Company, L.P. Medium dependent write equalization
US7251090B2 (en) * 2005-04-13 2007-07-31 Hewlett-Packard Development Company, L.P. Pattern dependent write equalization
US7733593B2 (en) * 2007-02-09 2010-06-08 Tandberg Storage Asa Write channel equalization level control in magnetic recording device
US8964319B1 (en) 2014-03-05 2015-02-24 International Business Machines Corporation Tape media kiss-contact read verification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503059A (en) * 1967-03-22 1970-03-24 Ibm Pulse crowding compensation for magnetic recording
WO1979000715A1 (en) * 1978-03-01 1979-10-04 Pioneer Electronic Corp Magnetic recorder/reproducer
US4202017A (en) * 1978-05-08 1980-05-06 Sperry Rand Corporation Magnetic recording signal equalization apparatus
JPS55117719A (en) * 1979-02-28 1980-09-10 Hitachi Ltd Magnetic recorder
US4691254A (en) * 1985-06-24 1987-09-01 Priam Corporation Data processing system including encoder, decoder and write precompensator, using run length limited code
US4965873A (en) * 1988-06-16 1990-10-23 White R Kent Pilot enhanced/amplitude equalized impulse magnetic
US5172280A (en) * 1989-10-26 1992-12-15 Archive Corporation Apparatus and method for automatic write current calibration in a streaming tape drive
US5060089A (en) * 1990-08-22 1991-10-22 Storage Technology Corporation Data write pulse compensator circuit

Also Published As

Publication number Publication date
US5339202A (en) 1994-08-16
EP0617406A2 (en) 1994-09-28
EP0617406A3 (en) 1995-01-11
JPH06301907A (ja) 1994-10-28
KR940022456A (ko) 1994-10-20
NO941068D0 (no) 1994-03-23

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