DE69623379D1 - Digitaler Servoschaltkreis zur Erzeugung eines Spiegeldetektionssignals - Google Patents

Digitaler Servoschaltkreis zur Erzeugung eines Spiegeldetektionssignals

Info

Publication number
DE69623379D1
DE69623379D1 DE69623379T DE69623379T DE69623379D1 DE 69623379 D1 DE69623379 D1 DE 69623379D1 DE 69623379 T DE69623379 T DE 69623379T DE 69623379 T DE69623379 T DE 69623379T DE 69623379 D1 DE69623379 D1 DE 69623379D1
Authority
DE
Germany
Prior art keywords
generating
detection signal
servo circuit
digital servo
mirror detection
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.)
Expired - Fee Related
Application number
DE69623379T
Other languages
English (en)
Other versions
DE69623379T2 (de
Inventor
Hidenobu Noda
Yasuyuki Suda
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69623379D1 publication Critical patent/DE69623379D1/de
Application granted granted Critical
Publication of DE69623379T2 publication Critical patent/DE69623379T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69623379T 1995-04-28 1996-04-26 Digitaler Servoschaltkreis zur Erzeugung eines Spiegeldetektionssignals Expired - Fee Related DE69623379T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10668195A JP3536422B2 (ja) 1995-04-28 1995-04-28 デジタルサーボ回路

Publications (2)

Publication Number Publication Date
DE69623379D1 true DE69623379D1 (de) 2002-10-10
DE69623379T2 DE69623379T2 (de) 2003-05-15

Family

ID=14439815

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69623379T Expired - Fee Related DE69623379T2 (de) 1995-04-28 1996-04-26 Digitaler Servoschaltkreis zur Erzeugung eines Spiegeldetektionssignals

Country Status (6)

Country Link
US (1) US5796685A (de)
EP (1) EP0740292B1 (de)
JP (1) JP3536422B2 (de)
KR (1) KR100423918B1 (de)
CN (1) CN1083133C (de)
DE (1) DE69623379T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100846777B1 (ko) * 2002-07-05 2008-07-16 삼성전자주식회사 광 디스크 장치를 위한 미러 신호 검출 회로 및 그 방법
JP4193829B2 (ja) * 2005-08-22 2008-12-10 船井電機株式会社 ディスク装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2569005B2 (ja) * 1986-03-31 1997-01-08 株式会社日立製作所 光ディスク装置および光ディスク
JPH0731820B2 (ja) * 1987-08-31 1995-04-10 三菱電機株式会社 光デイスク駆動装置
US5239530A (en) * 1989-04-19 1993-08-24 Tokyo Shibaura Electric Co Method and apparatus for detecting a track count in an optical disk apparatus for recording/reproducing data on/from an optical disk
JPH0778884B2 (ja) * 1990-09-27 1995-08-23 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン 光学ディスク駆動装置及び光学ディスクのトラック数のカウント方法
JPH04149824A (ja) * 1990-10-12 1992-05-22 Pioneer Electron Corp 光ディスクの情報読取装置
JP3003338B2 (ja) * 1991-10-29 2000-01-24 ソニー株式会社 トラック横切り検出回路及び再生装置

Also Published As

Publication number Publication date
EP0740292A2 (de) 1996-10-30
JPH08306049A (ja) 1996-11-22
KR960038896A (ko) 1996-11-21
KR100423918B1 (ko) 2004-06-18
EP0740292B1 (de) 2002-09-04
CN1083133C (zh) 2002-04-17
EP0740292A3 (de) 1997-10-15
US5796685A (en) 1998-08-18
CN1147128A (zh) 1997-04-09
JP3536422B2 (ja) 2004-06-07
DE69623379T2 (de) 2003-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee