JPS59191145A - 光学的情報再生装置 - Google Patents

光学的情報再生装置

Info

Publication number
JPS59191145A
JPS59191145A JP58066053A JP6605383A JPS59191145A JP S59191145 A JPS59191145 A JP S59191145A JP 58066053 A JP58066053 A JP 58066053A JP 6605383 A JP6605383 A JP 6605383A JP S59191145 A JPS59191145 A JP S59191145A
Authority
JP
Japan
Prior art keywords
signal
information
pass filter
optical
reproducing device
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.)
Granted
Application number
JP58066053A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0444328B2 (enrdf_load_stackoverflow
Inventor
Haruo Isaka
治夫 井阪
Shinichi Tanaka
伸一 田中
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 JP58066053A priority Critical patent/JPS59191145A/ja
Publication of JPS59191145A publication Critical patent/JPS59191145A/ja
Publication of JPH0444328B2 publication Critical patent/JPH0444328B2/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
    • G11B7/08—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP58066053A 1983-04-14 1983-04-14 光学的情報再生装置 Granted JPS59191145A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58066053A JPS59191145A (ja) 1983-04-14 1983-04-14 光学的情報再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58066053A JPS59191145A (ja) 1983-04-14 1983-04-14 光学的情報再生装置

Publications (2)

Publication Number Publication Date
JPS59191145A true JPS59191145A (ja) 1984-10-30
JPH0444328B2 JPH0444328B2 (enrdf_load_stackoverflow) 1992-07-21

Family

ID=13304742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58066053A Granted JPS59191145A (ja) 1983-04-14 1983-04-14 光学的情報再生装置

Country Status (1)

Country Link
JP (1) JPS59191145A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182336A (ja) * 1984-09-29 1986-04-25 Mitsubishi Electric Corp ディスク再生装置のトラッキングサ−ボ回路
US5434838A (en) * 1991-12-05 1995-07-18 Fuji Photo Film Co., Ltd. Data recording apparatus and method with verification of optical disc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182336A (ja) * 1984-09-29 1986-04-25 Mitsubishi Electric Corp ディスク再生装置のトラッキングサ−ボ回路
US5434838A (en) * 1991-12-05 1995-07-18 Fuji Photo Film Co., Ltd. Data recording apparatus and method with verification of optical disc

Also Published As

Publication number Publication date
JPH0444328B2 (enrdf_load_stackoverflow) 1992-07-21

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