JPH0135429B2 - - Google Patents

Info

Publication number
JPH0135429B2
JPH0135429B2 JP56175456A JP17545681A JPH0135429B2 JP H0135429 B2 JPH0135429 B2 JP H0135429B2 JP 56175456 A JP56175456 A JP 56175456A JP 17545681 A JP17545681 A JP 17545681A JP H0135429 B2 JPH0135429 B2 JP H0135429B2
Authority
JP
Japan
Prior art keywords
scale
head
disk
optical
scale value
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
Application number
JP56175456A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5877071A (ja
Inventor
Akira Nakagawa
Atsushi Ishihara
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 JP17545681A priority Critical patent/JPS5877071A/ja
Publication of JPS5877071A publication Critical patent/JPS5877071A/ja
Publication of JPH0135429B2 publication Critical patent/JPH0135429B2/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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP17545681A 1981-10-31 1981-10-31 デイスク装置 Granted JPS5877071A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17545681A JPS5877071A (ja) 1981-10-31 1981-10-31 デイスク装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17545681A JPS5877071A (ja) 1981-10-31 1981-10-31 デイスク装置

Publications (2)

Publication Number Publication Date
JPS5877071A JPS5877071A (ja) 1983-05-10
JPH0135429B2 true JPH0135429B2 (enrdf_load_stackoverflow) 1989-07-25

Family

ID=15996382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17545681A Granted JPS5877071A (ja) 1981-10-31 1981-10-31 デイスク装置

Country Status (1)

Country Link
JP (1) JPS5877071A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212660A (ja) * 1982-06-03 1983-12-10 Matsushita Electric Ind Co Ltd 高密度記録円盤再生装置
JPS6079571A (ja) * 1983-10-04 1985-05-07 Seiko Epson Corp 回転式磁気記録再生装置
JPS61142578A (ja) * 1984-12-17 1986-06-30 Fuji Photo Film Co Ltd 画像記録装置
JPH0754619B2 (ja) * 1985-07-04 1995-06-07 日本電気株式会社 サ−ボ信号書込装置
JPH0632177B2 (ja) * 1986-05-01 1994-04-27 日立電子エンジニアリング株式会社 サ−ボトラツクライタにおけるサ−ボヘツドのオフセツト方法
JPH01165075A (ja) * 1987-12-21 1989-06-29 Ricoh Co Ltd 光デイスク駆動装置の制御方法
JP2748463B2 (ja) * 1988-12-13 1998-05-06 キヤノン株式会社 記録又は再生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1549439A (en) * 1976-07-06 1979-08-08 Data Recording Instr Co Magnetic disc storage devices
JPS5436906A (en) * 1977-08-29 1979-03-19 Hitachi Ltd Information reproducer
JPS5469808U (enrdf_load_stackoverflow) * 1977-10-27 1979-05-18

Also Published As

Publication number Publication date
JPS5877071A (ja) 1983-05-10

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