JPH0222452B2 - - Google Patents

Info

Publication number
JPH0222452B2
JPH0222452B2 JP58244470A JP24447083A JPH0222452B2 JP H0222452 B2 JPH0222452 B2 JP H0222452B2 JP 58244470 A JP58244470 A JP 58244470A JP 24447083 A JP24447083 A JP 24447083A JP H0222452 B2 JPH0222452 B2 JP H0222452B2
Authority
JP
Japan
Prior art keywords
light
signal
information
photodetector
receiving surface
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
JP58244470A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60138748A (ja
Inventor
Hiroshi Tanimoto
Seiichi Oogoshi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP58244470A priority Critical patent/JPS60138748A/ja
Publication of JPS60138748A publication Critical patent/JPS60138748A/ja
Publication of JPH0222452B2 publication Critical patent/JPH0222452B2/ja
Granted 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
    • G11B7/13—Optical detectors therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP58244470A 1983-12-27 1983-12-27 光学式情報再生装置 Granted JPS60138748A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58244470A JPS60138748A (ja) 1983-12-27 1983-12-27 光学式情報再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58244470A JPS60138748A (ja) 1983-12-27 1983-12-27 光学式情報再生装置

Publications (2)

Publication Number Publication Date
JPS60138748A JPS60138748A (ja) 1985-07-23
JPH0222452B2 true JPH0222452B2 (en, 2012) 1990-05-18

Family

ID=17119129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58244470A Granted JPS60138748A (ja) 1983-12-27 1983-12-27 光学式情報再生装置

Country Status (1)

Country Link
JP (1) JPS60138748A (en, 2012)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177645A (ja) * 1985-01-31 1986-08-09 Fujitsu Ltd 焦点誤差制御装置
JP2887273B2 (ja) * 1987-05-22 1999-04-26 パイオニア株式会社 光学式ピックアップ装置
JPH03192540A (ja) * 1989-12-21 1991-08-22 Toshiba Corp 光情報記録再生装置
US5412631A (en) * 1992-07-10 1995-05-02 Matsushita Electric Industrial Co., Ltd. Optical head apparatus for storing, reading or erasing information, and optical information reproducing method and optical information apparatus for optically reading information stored in an optical memory
JPH09219036A (ja) * 1996-02-15 1997-08-19 Nec Corp 光ヘッド装置
US6646976B1 (en) 1999-02-12 2003-11-11 Samsung Electronics Co., Ltd.. Optical pickup apparatus capable of reducing cross talk by adjacent tracks and a method therefor
KR100289726B1 (ko) * 1999-04-22 2001-05-15 윤종용 신호간 간섭 및/또는 크로스토크 감소 장치 및 방법
KR101231500B1 (ko) 2007-11-29 2013-02-07 미쓰비시덴키 가부시키가이샤 광 헤드 장치, 광 디스크 장치 및 광 디스크

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159641U (ja) * 1982-04-16 1983-10-24 パイオニア株式会社 光学式情報記録再生装置

Also Published As

Publication number Publication date
JPS60138748A (ja) 1985-07-23

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term