JPS57142094A - Optical information recorder and reproducer - Google Patents

Optical information recorder and reproducer

Info

Publication number
JPS57142094A
JPS57142094A JP56029065A JP2906581A JPS57142094A JP S57142094 A JPS57142094 A JP S57142094A JP 56029065 A JP56029065 A JP 56029065A JP 2906581 A JP2906581 A JP 2906581A JP S57142094 A JPS57142094 A JP S57142094A
Authority
JP
Japan
Prior art keywords
signal
mark
region
address
location
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
JP56029065A
Other languages
Japanese (ja)
Inventor
Tasuku Baba
Shunji Kanamaru
Hideo Okamura
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 JP56029065A priority Critical patent/JPS57142094A/en
Publication of JPS57142094A publication Critical patent/JPS57142094A/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
    • 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
    • G11B27/26—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 by photoelectric detection, e.g. of sprocket holes

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To prevent a reproducing address signal from being mixed with a luminance signal via a color signal processing circuit system, by stopping a color signal reproducing circuit for an address signal period. CONSTITUTION:A mark 35 for an address location detection is provided at an address signal region 20 on a disc 9 and at a region other than an information region 21, e.g. nonrecording region at the center of the disc 9. The relation of location between the mark 35 and the address signal region 20 is a location which can detect the mark 35 faster. This mark 35 reflects light, for example, and the detection of the mark 35 is made by a photodiode. Through this detection signal, a stop circuit 34 grounds a color signal component temporarily and forms a temporal stop signal of a color signal reproducing circuit 32.
JP56029065A 1981-02-27 1981-02-27 Optical information recorder and reproducer Pending JPS57142094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56029065A JPS57142094A (en) 1981-02-27 1981-02-27 Optical information recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56029065A JPS57142094A (en) 1981-02-27 1981-02-27 Optical information recorder and reproducer

Publications (1)

Publication Number Publication Date
JPS57142094A true JPS57142094A (en) 1982-09-02

Family

ID=12265957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56029065A Pending JPS57142094A (en) 1981-02-27 1981-02-27 Optical information recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS57142094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60232795A (en) * 1984-05-01 1985-11-19 Matsushita Electric Ind Co Ltd Recording and reproducing device of color video signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60232795A (en) * 1984-05-01 1985-11-19 Matsushita Electric Ind Co Ltd Recording and reproducing device of color video signal
JPH0374877B2 (en) * 1984-05-01 1991-11-28

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