JPS576442A - Optical data recording and reproducing system - Google Patents

Optical data recording and reproducing system

Info

Publication number
JPS576442A
JPS576442A JP7776980A JP7776980A JPS576442A JP S576442 A JPS576442 A JP S576442A JP 7776980 A JP7776980 A JP 7776980A JP 7776980 A JP7776980 A JP 7776980A JP S576442 A JPS576442 A JP S576442A
Authority
JP
Japan
Prior art keywords
track
sectors
disk
data recording
optical data
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
JP7776980A
Other languages
Japanese (ja)
Other versions
JPS631666B2 (en
Inventor
Yoshidai Kitaoka
Masateru Watanabe
Shinichi Abe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7776980A priority Critical patent/JPS576442A/en
Publication of JPS576442A publication Critical patent/JPS576442A/en
Publication of JPS631666B2 publication Critical patent/JPS631666B2/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

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To shorten a time required for checking the reproduction to be executed immediately after recording a data, by dividing the circumference of a disk into a lot of sectors, and constituting so that one track length is shorter than the circumferential length of the disk. CONSTITUTION:A lot of spiral and continuous track groups are placed on a disk 1. Now, when the circumference of the disk is equally divided into eight parts, each area 29-48 which has been equally divided is a sector, and its sector number becomes a continuous and serial number corresponding to each track. For instance, a track T1 is constituted of sectors 30-35, and a track T3 is constituted of sectors 42-47. That is to say, the track is divided at the position marked with , and also all the sectors are provided as those which are able to record and reproduce.
JP7776980A 1980-06-11 1980-06-11 Optical data recording and reproducing system Granted JPS576442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7776980A JPS576442A (en) 1980-06-11 1980-06-11 Optical data recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7776980A JPS576442A (en) 1980-06-11 1980-06-11 Optical data recording and reproducing system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP18842186A Division JPS6297179A (en) 1986-08-13 1986-08-13 Optical data recording and reproducing method

Publications (2)

Publication Number Publication Date
JPS576442A true JPS576442A (en) 1982-01-13
JPS631666B2 JPS631666B2 (en) 1988-01-13

Family

ID=13643146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7776980A Granted JPS576442A (en) 1980-06-11 1980-06-11 Optical data recording and reproducing system

Country Status (1)

Country Link
JP (1) JPS576442A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60673A (en) * 1983-06-16 1985-01-05 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS6050667A (en) * 1983-08-27 1985-03-20 Sony Corp Optical disc recording device
JPS60140572A (en) * 1983-12-28 1985-07-25 Fujitsu Ltd Recording method of data in magnetic tape device
JPS61158080A (en) * 1984-12-28 1986-07-17 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device
JPS61292269A (en) * 1985-06-18 1986-12-23 Sanyo Electric Co Ltd Data processing method
JPH0322269A (en) * 1989-03-03 1991-01-30 Matsushita Electric Ind Co Ltd Information recording method
JPH06208764A (en) * 1993-09-01 1994-07-26 Sony Corp Optical disc media
JPH076385A (en) * 1993-12-10 1995-01-10 Hitachi Ltd Optical information processing method and apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60673A (en) * 1983-06-16 1985-01-05 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS6050667A (en) * 1983-08-27 1985-03-20 Sony Corp Optical disc recording device
JPS60140572A (en) * 1983-12-28 1985-07-25 Fujitsu Ltd Recording method of data in magnetic tape device
JPS61158080A (en) * 1984-12-28 1986-07-17 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device
JPS61292269A (en) * 1985-06-18 1986-12-23 Sanyo Electric Co Ltd Data processing method
JPH0322269A (en) * 1989-03-03 1991-01-30 Matsushita Electric Ind Co Ltd Information recording method
JPH06208764A (en) * 1993-09-01 1994-07-26 Sony Corp Optical disc media
JPH076385A (en) * 1993-12-10 1995-01-10 Hitachi Ltd Optical information processing method and apparatus

Also Published As

Publication number Publication date
JPS631666B2 (en) 1988-01-13

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