SG96155A1 - Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same - Google Patents

Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same

Info

Publication number
SG96155A1
SG96155A1 SG9602075A SG1996002075A SG96155A1 SG 96155 A1 SG96155 A1 SG 96155A1 SG 9602075 A SG9602075 A SG 9602075A SG 1996002075 A SG1996002075 A SG 1996002075A SG 96155 A1 SG96155 A1 SG 96155A1
Authority
SG
Singapore
Prior art keywords
same
magnetic head
pilot signal
data conversion
head device
Prior art date
Application number
SG9602075A
Other languages
English (en)
Inventor
Ido Kihei
Obta Masayuki
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of SG96155A1 publication Critical patent/SG96155A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4009—Coupling between buses with data restructuring
    • G06F13/4018—Coupling between buses with data restructuring with data-width conversion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/463—Controlling, regulating, or indicating speed by using pilot tracking tones embedded in binary coded signals, e.g. using DSV/CDS values of coded signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/4673—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating
    • G11B15/4675—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking
    • G11B15/4676—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction
    • G11B15/4677—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction using auxiliary signals, i.e. pilot signals
    • G11B15/4678—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction using auxiliary signals, i.e. pilot signals superimposed on the main signal track
    • 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
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00847—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks
    • G11B5/0086—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks
    • 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
    • G11B5/584—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 tapes
    • G11B5/588—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 tapes by controlling the position of the rotating heads
    • 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
    • G11B2020/1438—8 to 10 modulation
    • 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
    • G11B5/584—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 tapes
    • G11B5/588—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 tapes by controlling the position of the rotating heads
    • G11B5/592—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 tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
    • G11B5/5921—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 tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals
    • 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
    • G11B5/584—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 tapes
    • G11B5/588—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 tapes by controlling the position of the rotating heads
    • G11B5/592—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 tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
    • G11B5/5921—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 tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals
    • G11B5/5922—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 tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals superimposed on the main signal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
SG9602075A 1990-08-18 1991-08-16 Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same SG96155A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21762490 1990-08-18
JP3083991 1991-02-26
JP14345791 1991-06-14

Publications (1)

Publication Number Publication Date
SG96155A1 true SG96155A1 (en) 2003-05-23

Family

ID=27287113

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9602075A SG96155A1 (en) 1990-08-18 1991-08-16 Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same

Country Status (4)

Country Link
US (3) US5365232A (fr)
EP (1) EP0472375B1 (fr)
DE (1) DE69130817T2 (fr)
SG (1) SG96155A1 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG96155A1 (en) * 1990-08-18 2003-05-23 Mitsubishi Electric Corp Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same
DE4222030A1 (de) * 1992-07-04 1994-01-05 Thomson Brandt Gmbh Verfahren zur Spurfolgesteuerung in einem Recorder
JP3271210B2 (ja) * 1993-05-11 2002-04-02 ソニー株式会社 回転ヘッド型磁気記録再生装置
AU700000B2 (en) * 1993-05-11 1998-12-17 Sony Corporation Tracking control circuit for rotary head magnetic recording/reproducing apparatus
JPH06338106A (ja) * 1993-05-28 1994-12-06 Canon Inc トラッキング制御装置
JP3420286B2 (ja) * 1993-05-28 2003-06-23 キヤノン株式会社 記録再生装置
JPH06349159A (ja) * 1993-06-01 1994-12-22 Canon Inc トラッキング制御装置
KR0150809B1 (ko) * 1993-09-17 1998-10-15 모리시타 요이찌 정보재생장치
EP0646915A3 (fr) * 1993-10-01 1995-11-29 Hitachi Ltd Système de commande de suivi des pistes automatique dans un système d'enregistrement/reproduction magnétique d'un signal numérique.
JP3613689B2 (ja) * 1993-10-27 2005-01-26 三菱電機株式会社 情報変換装置
DE69518796T2 (de) 1994-05-25 2001-03-01 Canon K.K., Tokio/Tokyo Anlage und Verfahren zum Ermitteln eines Leitsignals in einem digitalen Signal und Wiedergabevorrichtung
JP3541439B2 (ja) * 1994-07-08 2004-07-14 ソニー株式会社 信号変調方法及び装置、並びに信号復調装置及び方法
US5751890A (en) * 1994-11-11 1998-05-12 Mitsubishi Denki Kabushiki Kaisha Magnetic type recording and reproducing apparatus
JPH08147890A (ja) * 1994-11-21 1996-06-07 Canon Inc 記録再生装置
JPH08161720A (ja) * 1994-11-30 1996-06-21 Canon Inc 再生装置
KR0155824B1 (ko) * 1995-05-29 1998-12-15 김광호 디지탈신호 기록장치
US5960041A (en) * 1995-09-21 1999-09-28 Lucent Technologies Inc. Method and apparatus for generating high rate codes for recording information on a magnetic medium
JP3339539B2 (ja) * 1995-12-13 2002-10-28 松下電器産業株式会社 デジタル変調装置、その方法及び記録媒体
US6389219B1 (en) * 1996-07-30 2002-05-14 Deutsche Thomson-Brandt Gmbh Method and device for controlling the phase relation between a head drum and tape feed system of a magnetic tape recording device
FR2779863B1 (fr) * 1998-06-16 2000-08-25 Thomson Csf Systeme de suivi de piste pour l'enregistrement/lecture d'un support d'informations et support d'enregistrement
JP3573978B2 (ja) * 1998-11-10 2004-10-06 矢崎総業株式会社 符号化方法、及び符号化装置
US6397276B1 (en) * 1999-03-29 2002-05-28 Eugene Rzyski Data transmission by an alternating-frequency analog signal
DE69906822T2 (de) * 1999-07-09 2004-01-29 Thales Paris Spurfolgesystem zur aufzeichnung/wiedergabe eines informationsträgers und aufzeichnungsträger
US7084788B2 (en) * 2001-04-20 2006-08-01 Samsung Electronics Co., Ltd. Code generation and allocation method
KR100421004B1 (ko) * 2001-04-20 2004-03-03 삼성전자주식회사 코드 생성 및 배치 방법
US6765511B2 (en) * 2002-06-27 2004-07-20 Victor Company Of Japan, Ltd. Method and apparatus for encoding digital data
JP2004296049A (ja) * 2003-02-10 2004-10-21 Sony Corp データ記録方法および装置、データ記録媒体並びにデータ再生方法および装置
JP3894170B2 (ja) * 2003-07-16 2007-03-14 ソニー株式会社 再生装置及びトラッキング方法
WO2005020440A1 (fr) * 2003-08-13 2005-03-03 Seagate Technology Llc Code exempt de composante continue presentant une distance accrue entre les mots de code

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US4511933A (en) * 1982-09-20 1985-04-16 U.S. Philips Corporation Method and apparatus for recording a digital information signal
US4531153A (en) * 1981-10-31 1985-07-23 Sony Corporation Method and apparatus for encoding and decoding a binary digital information signal

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JPS5968862A (ja) * 1982-10-14 1984-04-18 Toshiba Corp トラツキング制御方式
JPS59123343A (ja) * 1982-12-29 1984-07-17 Sony Corp ２値信号の符号化方法
JPH0683271B2 (ja) * 1983-10-27 1994-10-19 ソニー株式会社 情報変換方式
JPS60201729A (ja) * 1984-03-26 1985-10-12 Canon Inc 電子機器
JPH0758917B2 (ja) * 1984-03-26 1995-06-21 キヤノン株式会社 データ処理方法
EP0193153B1 (fr) * 1985-02-25 1991-11-13 Matsushita Electric Industrial Co., Ltd. Méthode pour l'enregistrement et la reproduction de données numériques
US4897739A (en) * 1986-04-07 1990-01-30 Canon Kabushiki Kaisha Multi-channel recording apparatus using a plurality of heads in turn
US4951162A (en) * 1986-11-06 1990-08-21 Canon Kabushiki Kaisha Tracking control system with pilot signal phase setting circuitry
US5182681A (en) * 1986-12-27 1993-01-26 Yamaha Corporation Rotating head magnetic recording and reproducing device having automatic tracking control function
JPS6457825A (en) * 1987-08-27 1989-03-06 Nippon Denki Home Electronics 4/5 code conversion system
NL8801076A (nl) * 1988-04-26 1989-11-16 Philips Nv Inrichting voor het optekenen van een digitaal informatiesignaal.
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JP3011436B2 (ja) * 1990-07-06 2000-02-21 株式会社東芝 ディジタル信号変調方式
SG96155A1 (en) * 1990-08-18 2003-05-23 Mitsubishi Electric Corp Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same
NL9002772A (nl) * 1990-09-21 1992-04-16 Philips Nv Inrichting voor het optekenen van een digitaal informatiesignaal in een registratiedrager.

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Publication number Priority date Publication date Assignee Title
US4531153A (en) * 1981-10-31 1985-07-23 Sony Corporation Method and apparatus for encoding and decoding a binary digital information signal
US4511933A (en) * 1982-09-20 1985-04-16 U.S. Philips Corporation Method and apparatus for recording a digital information signal

Also Published As

Publication number Publication date
EP0472375A2 (fr) 1992-02-26
EP0472375A3 (en) 1993-10-27
US5852520A (en) 1998-12-22
US5365232A (en) 1994-11-15
US5570248A (en) 1996-10-29
DE69130817D1 (de) 1999-03-11
EP0472375B1 (fr) 1999-01-27
DE69130817T2 (de) 1999-10-21

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