JPS551626A - Information signal recording and reproducing system - Google Patents

Information signal recording and reproducing system

Info

Publication number
JPS551626A
JPS551626A JP7404378A JP7404378A JPS551626A JP S551626 A JPS551626 A JP S551626A JP 7404378 A JP7404378 A JP 7404378A JP 7404378 A JP7404378 A JP 7404378A JP S551626 A JPS551626 A JP S551626A
Authority
JP
Japan
Prior art keywords
signal
signals
disc
separatable
aperiodic
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
JP7404378A
Other languages
Japanese (ja)
Inventor
Toshio Kaneshiro
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP7404378A priority Critical patent/JPS551626A/en
Publication of JPS551626A publication Critical patent/JPS551626A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE: To increase a recording capacity by recording aperiodic informatio signals on a disc with periodic information added in a separatable state and separating periodic information to use it as reference signals for disc servo at a reproeucing time.
CONSTITUTION: Variable frequency generator VOSC gives signals, which correspond to control signals given from control input terminals 7 and 8, to variable speed servo circuit VVSC to control variably the number of rotations of motor M, and the relative linear speed of disc Da driven by motor M to signal converter SCr is always fixed independently of the position of signal converter SCr. When selector switch SW is switched to the fixed contact C side, the modulation signal given to optical modulator 3 becomes a signal obtained by adding information signal p, which is outputted from gate circuit 18 and has a periodic property, and aperiodic signal S, which is supplied to input terminal 12, by adder 15 in a separatable state.
COPYRIGHT: (C)1980,JPO&Japio
JP7404378A 1978-06-19 1978-06-19 Information signal recording and reproducing system Pending JPS551626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7404378A JPS551626A (en) 1978-06-19 1978-06-19 Information signal recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7404378A JPS551626A (en) 1978-06-19 1978-06-19 Information signal recording and reproducing system

Publications (1)

Publication Number Publication Date
JPS551626A true JPS551626A (en) 1980-01-08

Family

ID=13535740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7404378A Pending JPS551626A (en) 1978-06-19 1978-06-19 Information signal recording and reproducing system

Country Status (1)

Country Link
JP (1) JPS551626A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126978A (en) * 1983-12-14 1985-07-06 Hitachi Ltd Motor servo circuit of record and reproduction type video disk player
JPS6113780A (en) * 1984-06-29 1986-01-22 Hitachi Ltd Video disk device
WO1988003735A1 (en) * 1986-11-04 1988-05-19 Nippon Hoso Kyokai Three-dimensional video disc record, a recording apparatus therefor and a reproducing apparatus therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126978A (en) * 1983-12-14 1985-07-06 Hitachi Ltd Motor servo circuit of record and reproduction type video disk player
JPS6113780A (en) * 1984-06-29 1986-01-22 Hitachi Ltd Video disk device
WO1988003735A1 (en) * 1986-11-04 1988-05-19 Nippon Hoso Kyokai Three-dimensional video disc record, a recording apparatus therefor and a reproducing apparatus therefor
US5012351A (en) * 1986-11-04 1991-04-30 Nippon Hoso Kyokai Stereoscopic video disc record and recording and reproducing apparatus therefor
EP0293480B1 (en) * 1986-11-04 1995-02-08 Nippon Hoso Kyokai Three-dimensional video disc record, a recording apparatus therefor and a reproducing apparatus therefor

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