JPH0548537B2 - - Google Patents

Info

Publication number
JPH0548537B2
JPH0548537B2 JP15584284A JP15584284A JPH0548537B2 JP H0548537 B2 JPH0548537 B2 JP H0548537B2 JP 15584284 A JP15584284 A JP 15584284A JP 15584284 A JP15584284 A JP 15584284A JP H0548537 B2 JPH0548537 B2 JP H0548537B2
Authority
JP
Japan
Prior art keywords
error signal
disk
gain
circuit
signal
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
JP15584284A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6134736A (ja
Inventor
Masahiro Watanabe
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 JP15584284A priority Critical patent/JPS6134736A/ja
Publication of JPS6134736A publication Critical patent/JPS6134736A/ja
Publication of JPH0548537B2 publication Critical patent/JPH0548537B2/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)
JP15584284A 1984-07-26 1984-07-26 デイジタルデイスクプレ−ヤのサ−ボ回路 Granted JPS6134736A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15584284A JPS6134736A (ja) 1984-07-26 1984-07-26 デイジタルデイスクプレ−ヤのサ−ボ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15584284A JPS6134736A (ja) 1984-07-26 1984-07-26 デイジタルデイスクプレ−ヤのサ−ボ回路

Publications (2)

Publication Number Publication Date
JPS6134736A JPS6134736A (ja) 1986-02-19
JPH0548537B2 true JPH0548537B2 (ko) 1993-07-21

Family

ID=15614684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15584284A Granted JPS6134736A (ja) 1984-07-26 1984-07-26 デイジタルデイスクプレ−ヤのサ−ボ回路

Country Status (1)

Country Link
JP (1) JPS6134736A (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW509926B (en) 1999-12-10 2002-11-11 Koninkl Philips Electronics Nv Device for scanning a rotating information carrier

Also Published As

Publication number Publication date
JPS6134736A (ja) 1986-02-19

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