JPS5617586A - Signal writing system for static picture of optical disk - Google Patents

Signal writing system for static picture of optical disk

Info

Publication number
JPS5617586A
JPS5617586A JP9339479A JP9339479A JPS5617586A JP S5617586 A JPS5617586 A JP S5617586A JP 9339479 A JP9339479 A JP 9339479A JP 9339479 A JP9339479 A JP 9339479A JP S5617586 A JPS5617586 A JP S5617586A
Authority
JP
Japan
Prior art keywords
picture
signal
puseudo
frame
picture signal
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
JP9339479A
Other languages
Japanese (ja)
Inventor
Shigeru Arai
Koichi Ogawa
Miyozou Maeda
Tadatoshi Suenaga
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9339479A priority Critical patent/JPS5617586A/en
Publication of JPS5617586A publication Critical patent/JPS5617586A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras

Abstract

PURPOSE:To ensure an accurate control of the reading head at the prescribed position, by setting the rotational cycle of the optical disk longer than the 1-frame cycle of the static picture and then recording the puseudo picture signal after recording the 1-frame picture signal. CONSTITUTION:The picture signal is generated from picture signal generating part 2 based on the picture obtained through video camera 1 and then extracted out of the 1st gate 3 by an amount equivalent to one frame. These extracted picture signals are then applied to optical modulator 7 after the FM modulation and the shaping of waveform. The laser beam is transmitted to modulator 7 and then modulated based on the above-mentioned picture signal to be condensed on optical disk 9 and then form the optical signal recording hole. Gate circuit 3 generates the control signal to the 2nd gate circuit 11 after transmitting the picture signals equivalent to one frame, and then generates the puseudo picture signals. The puseudo picture signals are extinguished with one rotation of disk 9. The track servo control becomes possible for the reading head by the optical recording hole based on the puseudo picture signal.
JP9339479A 1979-07-23 1979-07-23 Signal writing system for static picture of optical disk Pending JPS5617586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9339479A JPS5617586A (en) 1979-07-23 1979-07-23 Signal writing system for static picture of optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9339479A JPS5617586A (en) 1979-07-23 1979-07-23 Signal writing system for static picture of optical disk

Publications (1)

Publication Number Publication Date
JPS5617586A true JPS5617586A (en) 1981-02-19

Family

ID=14081079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9339479A Pending JPS5617586A (en) 1979-07-23 1979-07-23 Signal writing system for static picture of optical disk

Country Status (1)

Country Link
JP (1) JPS5617586A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158987U (en) * 1983-04-08 1984-10-25 三建産業株式会社 Rapid aluminum melting furnace
JPH0864890A (en) * 1995-08-04 1996-03-08 Hitachi Ltd Drive method for semiconductor laser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158987U (en) * 1983-04-08 1984-10-25 三建産業株式会社 Rapid aluminum melting furnace
JPH0864890A (en) * 1995-08-04 1996-03-08 Hitachi Ltd Drive method for semiconductor laser

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