JPS57103135A - Optical disk and optical disk device - Google Patents

Optical disk and optical disk device

Info

Publication number
JPS57103135A
JPS57103135A JP55179166A JP17916680A JPS57103135A JP S57103135 A JPS57103135 A JP S57103135A JP 55179166 A JP55179166 A JP 55179166A JP 17916680 A JP17916680 A JP 17916680A JP S57103135 A JPS57103135 A JP S57103135A
Authority
JP
Japan
Prior art keywords
optical disk
tracks
address information
groove
rotation
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.)
Pending
Application number
JP55179166A
Other languages
Japanese (ja)
Inventor
Isao Sato
Tomio Yoshida
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 JP55179166A priority Critical patent/JPS57103135A/en
Priority to DE8181305910T priority patent/DE3172850D1/en
Priority to EP81305910A priority patent/EP0054438B1/en
Priority to US06/331,326 priority patent/US5119363A/en
Publication of JPS57103135A publication Critical patent/JPS57103135A/en
Pending 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2587—Laser Discs; Optical disc using analog recording

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To know the starting terminal of rotation easily by employing phase structure of unevenness for a rotation starting position mark for detecting one turn of an optical disk. CONSTITUTION:An optical disk 1 consists of a track part 7 having groove- shaped guide tracks, track address information parts 8 formed on interior tracks, and a rotation starting position mark 9. The address information parts 8 are arrayed on arcs which have an angle alpha to an optical disk center 0 in the radius direction of the optical disk 1, and pieces of address information on the tracks are recorded as uneven pits in the form of FM-modulated or PE modulated signals. Thus, a groove-shaped phase variation structure similar to the tracks is formed, improving the producibility of optical disks.
JP55179166A 1980-12-17 1980-12-17 Optical disk and optical disk device Pending JPS57103135A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP55179166A JPS57103135A (en) 1980-12-17 1980-12-17 Optical disk and optical disk device
DE8181305910T DE3172850D1 (en) 1980-12-17 1981-12-16 Optical disk having an index mark
EP81305910A EP0054438B1 (en) 1980-12-17 1981-12-16 Optical disk having an index mark
US06/331,326 US5119363A (en) 1980-12-17 1981-12-16 Optical disk having an index mark

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55179166A JPS57103135A (en) 1980-12-17 1980-12-17 Optical disk and optical disk device

Publications (1)

Publication Number Publication Date
JPS57103135A true JPS57103135A (en) 1982-06-26

Family

ID=16061086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55179166A Pending JPS57103135A (en) 1980-12-17 1980-12-17 Optical disk and optical disk device

Country Status (1)

Country Link
JP (1) JPS57103135A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134733A (en) * 1984-07-25 1986-02-19 Hitachi Ltd Optical disc device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134733A (en) * 1984-07-25 1986-02-19 Hitachi Ltd Optical disc device

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