JPS57186233A - Crosstalk detector in recording information reproducer - Google Patents

Crosstalk detector in recording information reproducer

Info

Publication number
JPS57186233A
JPS57186233A JP56070029A JP7002981A JPS57186233A JP S57186233 A JPS57186233 A JP S57186233A JP 56070029 A JP56070029 A JP 56070029A JP 7002981 A JP7002981 A JP 7002981A JP S57186233 A JPS57186233 A JP S57186233A
Authority
JP
Japan
Prior art keywords
crosstalk
signal
mhz
component
inputted
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
JP56070029A
Other languages
Japanese (ja)
Other versions
JPH0442748B2 (en
Inventor
Hitoshi Kanamaru
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.)
YUNIBAASARU PAIONIA KK
Pioneer Video Corp
Universal Pioneer Corp
Original Assignee
YUNIBAASARU PAIONIA KK
Pioneer Video Corp
Universal Pioneer Corp
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 YUNIBAASARU PAIONIA KK, Pioneer Video Corp, Universal Pioneer Corp filed Critical YUNIBAASARU PAIONIA KK
Priority to JP56070029A priority Critical patent/JPS57186233A/en
Priority to US06/376,034 priority patent/US4491877A/en
Priority to GB8213777A priority patent/GB2098761B/en
Priority to DE3217518A priority patent/DE3217518C2/en
Publication of JPS57186233A publication Critical patent/JPS57186233A/en
Publication of JPH0442748B2 publication Critical patent/JPH0442748B2/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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To automatically detect the generation of crosstalk, by detecting signals other than a modulation signal of a prescribed frequency included in a reproducing signal at a recording section at each prescribed period of a recording track as crosstalk. CONSTITUTION:In the constant line speed system for a video disc for example, a composite video signal A is inputted to a BPF 2 picking up only a beat component appeared as crosstalk and gated at a gate circuit 3. This gate circuit 3 is operated by gating only a specific section (information section of gray level, 8.5 MHz component) in a vertical blanking period of a video signal. Thus, if a suychronizing signal (7.5 MHz) component of adjacent tracks is leaked at this operation, I MHz beat components are outputted and inputted to an envelope detector 5, peak-hold is made at a holding circuit 6, a crosstalk amount D is detected, the polarity is controlled according to the direction of generation of the crosstalk at a polarity changeover device 7 and the amount D becomes a control signal for a rejector 8.
JP56070029A 1981-05-09 1981-05-09 Crosstalk detector in recording information reproducer Granted JPS57186233A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56070029A JPS57186233A (en) 1981-05-09 1981-05-09 Crosstalk detector in recording information reproducer
US06/376,034 US4491877A (en) 1981-05-09 1982-05-07 Cross-talk detector in information-carrying disc player
GB8213777A GB2098761B (en) 1981-05-09 1982-05-10 Cross-talk detector in informationcarrying disc player
DE3217518A DE3217518C2 (en) 1981-05-09 1982-05-10 Record player for playing an information-carrying disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070029A JPS57186233A (en) 1981-05-09 1981-05-09 Crosstalk detector in recording information reproducer

Publications (2)

Publication Number Publication Date
JPS57186233A true JPS57186233A (en) 1982-11-16
JPH0442748B2 JPH0442748B2 (en) 1992-07-14

Family

ID=13419755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070029A Granted JPS57186233A (en) 1981-05-09 1981-05-09 Crosstalk detector in recording information reproducer

Country Status (1)

Country Link
JP (1) JPS57186233A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425384U (en) * 1990-06-25 1992-02-28

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53157708U (en) * 1977-05-17 1978-12-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53157708U (en) * 1977-05-17 1978-12-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425384U (en) * 1990-06-25 1992-02-28

Also Published As

Publication number Publication date
JPH0442748B2 (en) 1992-07-14

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