DE69027844T2 - Datenwiedergabegerät für optische Platte - Google Patents

Datenwiedergabegerät für optische Platte

Info

Publication number
DE69027844T2
DE69027844T2 DE69027844T DE69027844T DE69027844T2 DE 69027844 T2 DE69027844 T2 DE 69027844T2 DE 69027844 T DE69027844 T DE 69027844T DE 69027844 T DE69027844 T DE 69027844T DE 69027844 T2 DE69027844 T2 DE 69027844T2
Authority
DE
Germany
Prior art keywords
optical disc
data player
player
data
disc
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 - Lifetime
Application number
DE69027844T
Other languages
English (en)
Other versions
DE69027844D1 (de
Inventor
Motoshi Ito
Kenzo Ishibashi
Takashi Inoue
Shunji O'hara
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 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 DE69027844D1 publication Critical patent/DE69027844D1/de
Publication of DE69027844T2 publication Critical patent/DE69027844T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
DE69027844T 1990-01-12 1990-12-28 Datenwiedergabegerät für optische Platte Expired - Lifetime DE69027844T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005888A JP2516577B2 (ja) 1990-01-12 1990-01-12 光デェスク信号再生装置

Publications (2)

Publication Number Publication Date
DE69027844D1 DE69027844D1 (de) 1996-08-22
DE69027844T2 true DE69027844T2 (de) 1997-02-20

Family

ID=11623433

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69027844T Expired - Lifetime DE69027844T2 (de) 1990-01-12 1990-12-28 Datenwiedergabegerät für optische Platte

Country Status (5)

Country Link
US (1) US5202873A (de)
EP (1) EP0436939B1 (de)
JP (1) JP2516577B2 (de)
CA (1) CA2033565C (de)
DE (1) DE69027844T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2682222B2 (ja) * 1990-10-01 1997-11-26 三菱電機株式会社 情報記憶装置
JP3097767B2 (ja) * 1991-05-13 2000-10-10 オリンパス光学工業株式会社 光学式記録再生装置
JPH06162542A (ja) * 1992-11-24 1994-06-10 Pioneer Electron Corp 光ディスク装置
JP4422855B2 (ja) * 2000-03-16 2010-02-24 株式会社日立製作所 ウォブル信号再生回路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799584B2 (ja) * 1985-12-24 1995-10-25 株式会社日立製作所 光学式情報記録再生装置
US4831626A (en) * 1987-02-19 1989-05-16 Fuji Photo Film Co., Ltd. Laser beam recording apparatus

Also Published As

Publication number Publication date
JPH03209631A (ja) 1991-09-12
CA2033565C (en) 1996-04-02
JP2516577B2 (ja) 1996-07-24
EP0436939A2 (de) 1991-07-17
US5202873A (en) 1993-04-13
DE69027844D1 (de) 1996-08-22
EP0436939A3 (en) 1992-01-02
EP0436939B1 (de) 1996-07-17
CA2033565A1 (en) 1991-07-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP