JPS5778650A - Optical recording body - Google Patents

Optical recording body

Info

Publication number
JPS5778650A
JPS5778650A JP55151375A JP15137580A JPS5778650A JP S5778650 A JPS5778650 A JP S5778650A JP 55151375 A JP55151375 A JP 55151375A JP 15137580 A JP15137580 A JP 15137580A JP S5778650 A JPS5778650 A JP S5778650A
Authority
JP
Japan
Prior art keywords
optical disk
recording unit
area
information
constitution
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
JP55151375A
Other languages
Japanese (ja)
Inventor
Teruo Murakami
Koji Izawa
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55151375A priority Critical patent/JPS5778650A/en
Publication of JPS5778650A publication Critical patent/JPS5778650A/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
    • G11B7/007—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
    • 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

  • 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)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To retrieve information easily, by dividing the information by a recording unit, and formatting an address of the recording unit in advance when an optical disk is prepared, so that this recording unit has a tree structure. CONSTITUTION:An optical disk is roughly divided into a large sort area 101, a middle sort area 102 and a small sort area 103, each area is also divided into a sector 206 consisting of a preformat part 204 and a data part 205, and in each preformat part, a pit sequence is formed in advance by a conventional optical disk tecnique such as a stamper, so that said sector forms a tree structure. According to such a constitution, an optical disk which is excellent in its retrieving capacity of information is manufactured in a large quantity in a short time.
JP55151375A 1980-10-30 1980-10-30 Optical recording body Pending JPS5778650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151375A JPS5778650A (en) 1980-10-30 1980-10-30 Optical recording body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151375A JPS5778650A (en) 1980-10-30 1980-10-30 Optical recording body

Publications (1)

Publication Number Publication Date
JPS5778650A true JPS5778650A (en) 1982-05-17

Family

ID=15517177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151375A Pending JPS5778650A (en) 1980-10-30 1980-10-30 Optical recording body

Country Status (1)

Country Link
JP (1) JPS5778650A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968883A (en) * 1982-10-13 1984-04-18 Sharp Corp Video disc information retrieval system
CN104238960A (en) * 2014-08-28 2014-12-24 华为技术有限公司 Hard disk formatting method, block data storage method based on hard disk and block data storage device based on hard disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968883A (en) * 1982-10-13 1984-04-18 Sharp Corp Video disc information retrieval system
CN104238960A (en) * 2014-08-28 2014-12-24 华为技术有限公司 Hard disk formatting method, block data storage method based on hard disk and block data storage device based on hard disk
CN104238960B (en) * 2014-08-28 2017-11-24 华为技术有限公司 Formatting hard disk method and data block storage method and device based on hard disk

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