JPS5778644A - Optical noncontact reproducer - Google Patents

Optical noncontact reproducer

Info

Publication number
JPS5778644A
JPS5778644A JP55153418A JP15341880A JPS5778644A JP S5778644 A JPS5778644 A JP S5778644A JP 55153418 A JP55153418 A JP 55153418A JP 15341880 A JP15341880 A JP 15341880A JP S5778644 A JPS5778644 A JP S5778644A
Authority
JP
Japan
Prior art keywords
photodetector
optimum
signal
executed
parts
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.)
Pending
Application number
JP55153418A
Other languages
English (en)
Inventor
Tsuneo Hirose
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
Priority to JP55153418A priority Critical patent/JPS5778644A/ja
Publication of JPS5778644A publication Critical patent/JPS5778644A/ja
Pending 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

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP55153418A 1980-10-31 1980-10-31 Optical noncontact reproducer Pending JPS5778644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153418A JPS5778644A (en) 1980-10-31 1980-10-31 Optical noncontact reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153418A JPS5778644A (en) 1980-10-31 1980-10-31 Optical noncontact reproducer

Publications (1)

Publication Number Publication Date
JPS5778644A true JPS5778644A (en) 1982-05-17

Family

ID=15562060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153418A Pending JPS5778644A (en) 1980-10-31 1980-10-31 Optical noncontact reproducer

Country Status (1)

Country Link
JP (1) JPS5778644A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177647A (ja) * 1985-02-04 1986-08-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 情報記憶装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177647A (ja) * 1985-02-04 1986-08-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 情報記憶装置

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