JPS57210411A - Discoidal information recording medium and its reproducing device - Google Patents

Discoidal information recording medium and its reproducing device

Info

Publication number
JPS57210411A
JPS57210411A JP56096354A JP9635481A JPS57210411A JP S57210411 A JPS57210411 A JP S57210411A JP 56096354 A JP56096354 A JP 56096354A JP 9635481 A JP9635481 A JP 9635481A JP S57210411 A JPS57210411 A JP S57210411A
Authority
JP
Japan
Prior art keywords
mixer
supplied
recording medium
information recording
chrominance 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
JP56096354A
Other languages
Japanese (ja)
Inventor
Hiroyuki Sugiyama
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
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP56096354A priority Critical patent/JPS57210411A/en
Publication of JPS57210411A publication Critical patent/JPS57210411A/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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1803—Error detection or correction; Testing, e.g. of drop-outs by redundancy in data representation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To compensate a dropout by delaying one of two sound signals of two channels behind the other by certain time, and repeatedly recording two channel sound signals up to the one-turn period of a discoidal information recording medium during a plural-turn period. CONSTITUTION:A sound signal arriving at an input terminal 1 is branched into two and supplied to frequency modulators 3 and 4 respectively. The output of the modulator 3 is supplied directly to a mixer 5, and that of the modulator 4 is supplied to the mixer 5 through a one horizontal scanning period (1H) delay circuit 6. A color video signal arriving at an input terminal 2 is separated into a luminance and a chrominance signal by a luminance and chrominance signal separating circuit 7; the luminance signal is band-limited and the chrominance signal is converted into a low frequency converted chrominance signal, which is supplied to a mixer 9. The output of the mixer 9 is supplied to the mixer 5. The output of the mixer 5 is modulated by a frequency modulator 10 and supplied to a discoidal information recording medium.
JP56096354A 1981-06-22 1981-06-22 Discoidal information recording medium and its reproducing device Pending JPS57210411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096354A JPS57210411A (en) 1981-06-22 1981-06-22 Discoidal information recording medium and its reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096354A JPS57210411A (en) 1981-06-22 1981-06-22 Discoidal information recording medium and its reproducing device

Publications (1)

Publication Number Publication Date
JPS57210411A true JPS57210411A (en) 1982-12-24

Family

ID=14162654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096354A Pending JPS57210411A (en) 1981-06-22 1981-06-22 Discoidal information recording medium and its reproducing device

Country Status (1)

Country Link
JP (1) JPS57210411A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188011A (en) * 1975-01-29 1976-08-02
JPS5189710A (en) * 1975-02-05 1976-08-06 Kirokubaitai oyobi sonokirokuhoho
JPS5334885U (en) * 1976-09-01 1978-03-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188011A (en) * 1975-01-29 1976-08-02
JPS5189710A (en) * 1975-02-05 1976-08-06 Kirokubaitai oyobi sonokirokuhoho
JPS5334885U (en) * 1976-09-01 1978-03-27

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