JPH0127494B2 - - Google Patents

Info

Publication number
JPH0127494B2
JPH0127494B2 JP56199269A JP19926981A JPH0127494B2 JP H0127494 B2 JPH0127494 B2 JP H0127494B2 JP 56199269 A JP56199269 A JP 56199269A JP 19926981 A JP19926981 A JP 19926981A JP H0127494 B2 JPH0127494 B2 JP H0127494B2
Authority
JP
Japan
Prior art keywords
recording
optical system
track
signal
reproducing
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
JP56199269A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58100249A (ja
Inventor
Takeo Oota
Tatsushi Nakamura
Masami Uchida
Yasuhiko Tanigawa
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 JP56199269A priority Critical patent/JPS58100249A/ja
Publication of JPS58100249A publication Critical patent/JPS58100249A/ja
Publication of JPH0127494B2 publication Critical patent/JPH0127494B2/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
JP56199269A 1981-12-09 1981-12-09 光学情報記録用担体 Granted JPS58100249A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56199269A JPS58100249A (ja) 1981-12-09 1981-12-09 光学情報記録用担体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56199269A JPS58100249A (ja) 1981-12-09 1981-12-09 光学情報記録用担体

Publications (2)

Publication Number Publication Date
JPS58100249A JPS58100249A (ja) 1983-06-14
JPH0127494B2 true JPH0127494B2 (nl) 1989-05-29

Family

ID=16404972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56199269A Granted JPS58100249A (ja) 1981-12-09 1981-12-09 光学情報記録用担体

Country Status (1)

Country Link
JP (1) JPS58100249A (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050733A (ja) * 1983-08-31 1985-03-20 Sony Corp 光学式記録媒体及びその原盤の製造装置
JPH07107744B2 (ja) * 1984-05-16 1995-11-15 松下電器産業株式会社 光ディスクの再生方法
JPS61172233A (ja) * 1985-01-25 1986-08-02 Nec Corp 光デイスク用基板
JPS63157319A (ja) * 1986-12-19 1988-06-30 Matsushita Electric Ind Co Ltd 光デイスク
JPH01107321A (ja) * 1987-10-20 1989-04-25 Matsushita Electric Ind Co Ltd 光ディスク
JP2687850B2 (ja) * 1993-09-27 1997-12-08 株式会社日立製作所 情報処理装置
JP2611681B2 (ja) * 1994-12-19 1997-05-21 ソニー株式会社 光学式記録媒体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046317A (nl) * 1973-08-29 1975-04-25
JPS5265404A (en) * 1975-11-26 1977-05-30 Matsushita Electric Ind Co Ltd Information recording original disk being furnished with pattern for d etecting focus position

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046317A (nl) * 1973-08-29 1975-04-25
JPS5265404A (en) * 1975-11-26 1977-05-30 Matsushita Electric Ind Co Ltd Information recording original disk being furnished with pattern for d etecting focus position

Also Published As

Publication number Publication date
JPS58100249A (ja) 1983-06-14

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