JPS57147139A - Optical recorder and reproducer - Google Patents

Optical recorder and reproducer

Info

Publication number
JPS57147139A
JPS57147139A JP3074181A JP3074181A JPS57147139A JP S57147139 A JPS57147139 A JP S57147139A JP 3074181 A JP3074181 A JP 3074181A JP 3074181 A JP3074181 A JP 3074181A JP S57147139 A JPS57147139 A JP S57147139A
Authority
JP
Japan
Prior art keywords
signal
recording
address signal
disc
address
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
JP3074181A
Other languages
Japanese (ja)
Other versions
JPS649655B2 (en
Inventor
Tomio Yoshida
Isao Sato
Shunji Harikae
Kenji Koishi
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 JP3074181A priority Critical patent/JPS57147139A/en
Publication of JPS57147139A publication Critical patent/JPS57147139A/en
Publication of JPS649655B2 publication Critical patent/JPS649655B2/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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00745—Sectoring or header formats within a track

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To achieve efficient use of a recording medium through recording and reproduction of signals on an address signal, by providing address signal areas on each groove track of an optical recording disc with unevenness and coating an optical recording member on it uniformly. CONSTITUTION:On a disc base 101, uneven address signals P1 and P2 and a groove area P3 are provided, and on the said base 101, the layer of a photo sensing recording member 102 is formed in the process of vapor deposition and the like. At signal reproduction, a reflecting light or a transmitting light from a disc is amplified at a reproducing amplifier 28, and a video signal in FM modulation is separated at a high pass filter 201 and applied to a recording signal reproducing processing circuit 202. On the other hand, a signal in low frequency component is picked up at a low pass filter 203 and decoded into an address signal at an address signal processing circuit 204.
JP3074181A 1981-03-03 1981-03-03 Optical recorder and reproducer Granted JPS57147139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3074181A JPS57147139A (en) 1981-03-03 1981-03-03 Optical recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3074181A JPS57147139A (en) 1981-03-03 1981-03-03 Optical recorder and reproducer

Publications (2)

Publication Number Publication Date
JPS57147139A true JPS57147139A (en) 1982-09-10
JPS649655B2 JPS649655B2 (en) 1989-02-20

Family

ID=12312092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3074181A Granted JPS57147139A (en) 1981-03-03 1981-03-03 Optical recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS57147139A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271628A (en) * 1985-05-25 1986-12-01 Nec Home Electronics Ltd Recording and reproducing method for optical disk
JPH01162251A (en) * 1987-12-18 1989-06-26 Sharp Corp Optical disk
US4907216A (en) * 1987-07-10 1990-03-06 U.S. Philips Corporation Optical record carrier having position indentifying track modulation
WO2003060889A1 (en) * 2002-01-11 2003-07-24 Fujitsu Limited Optical information recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271628A (en) * 1985-05-25 1986-12-01 Nec Home Electronics Ltd Recording and reproducing method for optical disk
US4907216A (en) * 1987-07-10 1990-03-06 U.S. Philips Corporation Optical record carrier having position indentifying track modulation
JPH01162251A (en) * 1987-12-18 1989-06-26 Sharp Corp Optical disk
WO2003060889A1 (en) * 2002-01-11 2003-07-24 Fujitsu Limited Optical information recording medium

Also Published As

Publication number Publication date
JPS649655B2 (en) 1989-02-20

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