DE68923851D1 - Optisches Scheibenabtastungssystem. - Google Patents

Optisches Scheibenabtastungssystem.

Info

Publication number
DE68923851D1
DE68923851D1 DE68923851T DE68923851T DE68923851D1 DE 68923851 D1 DE68923851 D1 DE 68923851D1 DE 68923851 T DE68923851 T DE 68923851T DE 68923851 T DE68923851 T DE 68923851T DE 68923851 D1 DE68923851 D1 DE 68923851D1
Authority
DE
Germany
Prior art keywords
optical disc
scanning system
disc scanning
optical
scanning
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
DE68923851T
Other languages
English (en)
Other versions
DE68923851T2 (de
Inventor
Yasuo Haneji
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Application granted granted Critical
Publication of DE68923851D1 publication Critical patent/DE68923851D1/de
Publication of DE68923851T2 publication Critical patent/DE68923851T2/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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0948—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
DE68923851T 1988-11-30 1989-11-29 Optisches Scheibenabtastungssystem. Expired - Fee Related DE68923851T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63303038A JPH02149932A (ja) 1988-11-30 1988-11-30 光ディスク読取装置

Publications (2)

Publication Number Publication Date
DE68923851D1 true DE68923851D1 (de) 1995-09-21
DE68923851T2 DE68923851T2 (de) 1995-12-21

Family

ID=17916177

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68923851T Expired - Fee Related DE68923851T2 (de) 1988-11-30 1989-11-29 Optisches Scheibenabtastungssystem.

Country Status (4)

Country Link
US (1) US5124962A (de)
EP (1) EP0371784B1 (de)
JP (1) JPH02149932A (de)
DE (1) DE68923851T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255262A (en) * 1991-06-04 1993-10-19 International Business Machines Corporation Multiple data surface optical data storage system with transmissive data surfaces
US5774439A (en) * 1993-09-16 1998-06-30 Matsushira Electric Industrial Co., Ltd. Optical-disk recording and reproducing apparatus and optical disk for recording information on lands and grooves
JP2004030860A (ja) * 2002-04-30 2004-01-29 Pioneer Electronic Corp 記録ディスク及び記録情報再生装置並びに記録情報再生方法
EP1530791B1 (de) * 2002-08-22 2010-10-20 LG Electronics, Inc. Hochdichter optischer datenträger und aufnahme-/wiedergabe verfahren dafür
KR100716966B1 (ko) * 2002-11-04 2007-05-10 삼성전자주식회사 트랙킹 극성 정보가 기록된 광 디스크, 그 기록 장치 및기록 방법, 및 그 재생 장치 및 재생 방법
KR100932506B1 (ko) 2003-02-27 2009-12-17 엘지전자 주식회사 고밀도 광디스크의 재생 제어정보 관리 및 데이터 재생제어방법
US20110222384A1 (en) * 2008-06-19 2011-09-15 Kenji Kondo Optical disc device and optical disc device drive method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841447A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 光スポット制御信号検出方法
US4513333A (en) * 1982-02-24 1985-04-23 Dymek Corporation Diagnostic recording
JPS58189842A (ja) * 1982-04-30 1983-11-05 Toshiba Corp 光学式デジタルデイスクプレ−ヤ装置
US4485418A (en) * 1982-08-12 1984-11-27 Magnetic Peripherals, Inc. System and method of locating the center of a track on a magnetic storage disk
JPS59191144A (ja) * 1983-04-14 1984-10-30 Sony Corp 光ピツクアツプのトラツキングサ−ボ回路
JPH0679378B2 (ja) * 1986-12-15 1994-10-05 ソニー株式会社 光学式記録再生装置のトラツキングサ−ボ回路
JPS63237269A (ja) * 1987-03-25 1988-10-03 Sony Corp トラツクカウント装置
US4982392A (en) * 1987-07-10 1991-01-01 Ricoh Company, Ltd. Stabilized optical pick-up device inhibiting the effect of the focus error signal at the start and end of a data region
JPH01201830A (ja) * 1988-02-04 1989-08-14 Nakamichi Corp 光スポットの位置検出装置

Also Published As

Publication number Publication date
US5124962A (en) 1992-06-23
DE68923851T2 (de) 1995-12-21
EP0371784A3 (de) 1993-03-17
EP0371784B1 (de) 1995-08-16
JPH02149932A (ja) 1990-06-08
EP0371784A2 (de) 1990-06-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8339 Ceased/non-payment of the annual fee