DE3785387D1 - Verfahren zur wiedergabe von signalen von optischen platten. - Google Patents

Verfahren zur wiedergabe von signalen von optischen platten.

Info

Publication number
DE3785387D1
DE3785387D1 DE8787107210T DE3785387T DE3785387D1 DE 3785387 D1 DE3785387 D1 DE 3785387D1 DE 8787107210 T DE8787107210 T DE 8787107210T DE 3785387 T DE3785387 T DE 3785387T DE 3785387 D1 DE3785387 D1 DE 3785387D1
Authority
DE
Germany
Prior art keywords
optical disks
playing signals
playing
signals
disks
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
DE8787107210T
Other languages
English (en)
Other versions
DE3785387T2 (de
Inventor
Michiyoshi Nagashima
Yoshinari Takemura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3785387D1 publication Critical patent/DE3785387D1/de
Publication of DE3785387T2 publication Critical patent/DE3785387T2/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
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
DE87107210T 1986-05-20 1987-05-18 Verfahren zur Wiedergabe von Signalen von optischen Platten. Expired - Fee Related DE3785387T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61115256A JPS62271237A (ja) 1986-05-20 1986-05-20 光学的再生方法

Publications (2)

Publication Number Publication Date
DE3785387D1 true DE3785387D1 (de) 1993-05-19
DE3785387T2 DE3785387T2 (de) 1993-11-11

Family

ID=14658177

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87107210T Expired - Fee Related DE3785387T2 (de) 1986-05-20 1987-05-18 Verfahren zur Wiedergabe von Signalen von optischen Platten.

Country Status (5)

Country Link
US (1) US4932015A (de)
EP (1) EP0246597B1 (de)
JP (1) JPS62271237A (de)
KR (1) KR910000213B1 (de)
DE (1) DE3785387T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2696938B2 (ja) * 1988-06-20 1998-01-14 ソニー株式会社 光ディスク及び光ディスク再生装置
JPH02161628A (ja) * 1988-12-14 1990-06-21 Hitachi Ltd 光学ヘッド，情報記録媒体および光学的情報処理装置
JP2697209B2 (ja) * 1989-12-14 1998-01-14 松下電器産業株式会社 光ディスクの信号記録方法および光ディスク再生装置
CA2047606C (en) * 1990-07-24 1996-08-13 Michiyoshi Nagashima Optical disk reproducing method and optical disk reproducing apparatus
US5530641A (en) * 1991-05-17 1996-06-25 Olympus Optical Co., Ltd. Optical recording medium having grooves and lands and/or plural pit lines, and reproducing apparatus therefor
JPH11144250A (ja) * 1997-11-06 1999-05-28 Pioneer Electron Corp 情報データの記録再生方法
KR100312104B1 (ko) * 1997-11-28 2002-04-06 윤종용 밸런스게인튜닝장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7907180A (nl) * 1979-09-27 1981-03-31 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur, alsmede inrichting voor het uitlezen daarvan.
JPS57105828A (en) * 1980-12-19 1982-07-01 Matsushita Electric Ind Co Ltd Optical disk recording and reproducing system
JPS58125242A (ja) * 1982-01-22 1983-07-26 Victor Co Of Japan Ltd 光学的情報信号再生装置のトラツキング誤差検出方式
JPS6124037A (ja) * 1984-07-13 1986-02-01 Tokyo Electric Co Ltd 光学ヘツド
US4674070A (en) * 1984-08-11 1987-06-16 Victor Company Of Japan, Ltd. Optical type disc with V-shaped groove and optical type reproducing apparatus therefor
JPS6161237A (ja) * 1984-08-31 1986-03-29 Matsushita Electric Ind Co Ltd 光デイスクおよび光デイスクのアドレス再生方法

Also Published As

Publication number Publication date
KR870011587A (ko) 1987-12-24
DE3785387T2 (de) 1993-11-11
EP0246597B1 (de) 1993-04-14
EP0246597A3 (en) 1989-05-31
JPH0512775B2 (de) 1993-02-18
EP0246597A2 (de) 1987-11-25
KR910000213B1 (ko) 1991-01-23
JPS62271237A (ja) 1987-11-25
US4932015A (en) 1990-06-05

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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