BR8007973A - Gravacao estabilizada - Google Patents

Gravacao estabilizada

Info

Publication number
BR8007973A
BR8007973A BR8007973A BR8007973A BR8007973A BR 8007973 A BR8007973 A BR 8007973A BR 8007973 A BR8007973 A BR 8007973A BR 8007973 A BR8007973 A BR 8007973A BR 8007973 A BR8007973 A BR 8007973A
Authority
BR
Brazil
Prior art keywords
stabilized recording
stabilized
recording
Prior art date
Application number
BR8007973A
Other languages
English (en)
Inventor
M Haynes
S Cheatham
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BR8007973A publication Critical patent/BR8007973A/pt

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
BR8007973A 1979-12-07 1980-12-05 Gravacao estabilizada BR8007973A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/101,349 US4287540A (en) 1979-12-07 1979-12-07 Stabilized recording

Publications (1)

Publication Number Publication Date
BR8007973A true BR8007973A (pt) 1981-06-23

Family

ID=22284174

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8007973A BR8007973A (pt) 1979-12-07 1980-12-05 Gravacao estabilizada

Country Status (5)

Country Link
US (1) US4287540A (pt)
EP (1) EP0030301A3 (pt)
JP (1) JPS5683807A (pt)
BR (1) BR8007973A (pt)
CA (1) CA1135407A (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862810A (ja) * 1981-10-08 1983-04-14 Toshiba Corp 垂直磁化型磁気ヘッド
US4642718A (en) * 1984-11-28 1987-02-10 Eastman Kodak Company Optimum control of overwrite by record gap length selection
US4841502A (en) * 1985-06-14 1989-06-20 Kabushiki Kaisha Toshiba Information recording system and reproducing for recording and reproducing information on a magneto-optical disk
US5177651A (en) * 1987-12-23 1993-01-05 Konica Corporation Magnetic media and servo synchronization method
US4979051A (en) * 1988-03-22 1990-12-18 Eggebeen James A Bimodal multi-track magnetic head
US5285331A (en) * 1989-02-23 1994-02-08 Wangtek Incorporated System for aligning a read head gap over a track of magnetic data
US5568331A (en) * 1989-10-27 1996-10-22 Hitachi, Ltd. Method of head positioning and magnetic recording disk drive using the same
US6351340B2 (en) 1998-11-13 2002-02-26 Iomega Corporation AC erase system and method for data storage media
US6564307B1 (en) 1999-08-18 2003-05-13 International Business Machines Corporation Method, system, and program for logically erasing data
US6822827B1 (en) * 2001-06-07 2004-11-23 Imation Corp. Erasure techniques for magnetic tape media
JP2005085361A (ja) * 2003-09-09 2005-03-31 Fuji Photo Film Co Ltd サーボライタ
KR100594308B1 (ko) * 2004-12-27 2006-06-30 삼성전자주식회사 자기 디스크의 서보 패턴 기록 방법 및 이를 이용한디스크 드라이브와 자기 디스크
JP4406395B2 (ja) * 2005-11-29 2010-01-27 株式会社東芝 ディスク記憶装置及びヘッドアンプ装置
JP5016446B2 (ja) * 2007-01-29 2012-09-05 日立マクセル株式会社 サーボ信号記録方法、サーボ信号記録装置、および磁気記録媒体
US7880998B2 (en) * 2007-12-21 2011-02-01 Hitachi Global Storage Technologies Netherlands B.V. Multiple writing process for magnetic bit-patterned media
US9177598B2 (en) * 2011-11-21 2015-11-03 Marvell International Ltd. Device, method of fabricating a media and method of servo writing
US9093095B2 (en) 2013-10-18 2015-07-28 Western Digital Technologies, Inc. Electronic system with media preparation mechanism and method of operation thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032612A (en) * 1957-09-25 1962-05-01 Minnesota Mining & Mfg Magnetic recording means
DE1094478B (de) * 1958-03-04 1960-12-08 Telefunken Gmbh Magnettongeraet mit bei der Wiedergabe des Tonbandes eingeschaltetem, gegebenenfalls zusaetzlichem, nach Art eines Ringkopfes aufgebautem, Loeschkopf zur Echoloeschung
JPS5132990B2 (pt) * 1971-11-12 1976-09-16
JPS5141339B2 (pt) * 1971-11-12 1976-11-09
DE2416222A1 (de) * 1974-04-03 1975-10-23 Dasy Int Sa Verfahren zur aufzeichnung und wiedergabe von signalen
US3956769A (en) * 1974-08-12 1976-05-11 Control Data Corporation Recording system having coinciding servo and data tracks
US4149204A (en) * 1977-03-28 1979-04-10 International Business Machines Corporation Minor bit reduction on a magnetic head
JPS543517A (en) * 1977-06-09 1979-01-11 Sony Corp Erasing head

Also Published As

Publication number Publication date
EP0030301A3 (en) 1981-11-25
US4287540A (en) 1981-09-01
JPS5683807A (en) 1981-07-08
EP0030301A2 (en) 1981-06-17
CA1135407A (en) 1982-11-09

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