JPS57141030A - Optical recording of reproducing or reproducing device - Google Patents

Optical recording of reproducing or reproducing device

Info

Publication number
JPS57141030A
JPS57141030A JP2734481A JP2734481A JPS57141030A JP S57141030 A JPS57141030 A JP S57141030A JP 2734481 A JP2734481 A JP 2734481A JP 2734481 A JP2734481 A JP 2734481A JP S57141030 A JPS57141030 A JP S57141030A
Authority
JP
Japan
Prior art keywords
disc
switch
unit
track
irradiated
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
JP2734481A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0319623B2 (enrdf_load_stackoverflow
Inventor
Tomio Yoshida
Tamotsu Matsuo
Noboru Wakami
Haruo Yamashita
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 JP2734481A priority Critical patent/JPS57141030A/ja
Publication of JPS57141030A publication Critical patent/JPS57141030A/ja
Publication of JPH0319623B2 publication Critical patent/JPH0319623B2/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2734481A 1981-02-25 1981-02-25 Optical recording of reproducing or reproducing device Granted JPS57141030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2734481A JPS57141030A (en) 1981-02-25 1981-02-25 Optical recording of reproducing or reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2734481A JPS57141030A (en) 1981-02-25 1981-02-25 Optical recording of reproducing or reproducing device

Publications (2)

Publication Number Publication Date
JPS57141030A true JPS57141030A (en) 1982-09-01
JPH0319623B2 JPH0319623B2 (enrdf_load_stackoverflow) 1991-03-15

Family

ID=12218426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2734481A Granted JPS57141030A (en) 1981-02-25 1981-02-25 Optical recording of reproducing or reproducing device

Country Status (1)

Country Link
JP (1) JPS57141030A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528600A (en) * 1978-08-22 1980-02-29 Philips Nv Disk type record carrier reading device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528600A (en) * 1978-08-22 1980-02-29 Philips Nv Disk type record carrier reading device

Also Published As

Publication number Publication date
JPH0319623B2 (enrdf_load_stackoverflow) 1991-03-15

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