JPS57186235A - Crosstalk detecting device for recorded information reproducing device - Google Patents

Crosstalk detecting device for recorded information reproducing device

Info

Publication number
JPS57186235A
JPS57186235A JP56070031A JP7003181A JPS57186235A JP S57186235 A JPS57186235 A JP S57186235A JP 56070031 A JP56070031 A JP 56070031A JP 7003181 A JP7003181 A JP 7003181A JP S57186235 A JPS57186235 A JP S57186235A
Authority
JP
Japan
Prior art keywords
crosstalk
signal
detection
detect
output
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
JP56070031A
Other languages
Japanese (ja)
Other versions
JPH0320829B2 (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 JP56070031A priority Critical patent/JPS57186235A/en
Publication of JPS57186235A publication Critical patent/JPS57186235A/en
Publication of JPH0320829B2 publication Critical patent/JPH0320829B2/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)
  • Optical Recording Or Reproduction (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To detect the direction of the occurrence of crosstalk on a basis of the direction of oscillation of a pickup spot for detection of crosstalk, by oscillating minutely the pickup spot in a direction approximately orthogonal to the track at a period of about 30Hz. CONSTITUTION:Only the horizontal synchronizing signal period of a detection signal is gated by a gate circuit 3, and beat components to luminance signals of adjacent tracks included in the signal are extracted by a BPF and are subjected to envelope detection. This output B has the peak held at every horizontal period in a holding circuit 6. An output C of the circuit 6 is subjected to synchronous detection to detect a crosstalk quantity. Meanwhile, DC cut components of the peak holding output C and a tracking mirror driving signal (pickup spot oscillating signal) are multiplied in a synchronous detector 7 to detect the direction of the occurrence of crosstalk.
JP56070031A 1981-05-09 1981-05-09 Crosstalk detecting device for recorded information reproducing device Granted JPS57186235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070031A JPS57186235A (en) 1981-05-09 1981-05-09 Crosstalk detecting device for recorded information reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070031A JPS57186235A (en) 1981-05-09 1981-05-09 Crosstalk detecting device for recorded information reproducing device

Publications (2)

Publication Number Publication Date
JPS57186235A true JPS57186235A (en) 1982-11-16
JPH0320829B2 JPH0320829B2 (en) 1991-03-20

Family

ID=13419809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070031A Granted JPS57186235A (en) 1981-05-09 1981-05-09 Crosstalk detecting device for recorded information reproducing device

Country Status (1)

Country Link
JP (1) JPS57186235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008207275A (en) * 2007-02-26 2008-09-11 Okuma Corp Turret tool post and machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008207275A (en) * 2007-02-26 2008-09-11 Okuma Corp Turret tool post and machine tool

Also Published As

Publication number Publication date
JPH0320829B2 (en) 1991-03-20

Similar Documents

Publication Publication Date Title
DE3370393D1 (en) Disc playback apparatus
KR850003027A (en) Apparatus for reproducing optically readable record carrier information
JPS57186235A (en) Crosstalk detecting device for recorded information reproducing device
JPS5764325A (en) Automatic tracking device of video tape recorder
JPS5788532A (en) Recording error detection method in optical type recorder
JPS54155007A (en) Information recorder
JPS53124018A (en) Signal detector circuit for video disc player
JPS55135332A (en) Track deviation detector
JPS543507A (en) Magnetic recorder and magnetic reproducer
JPS6423472A (en) Track seek device
KR930014516A (en) Recorder
JPS53149301A (en) Optical recorder-reproducer
JPS57143724A (en) Track shift detection system
JPS5589919A (en) Information recorder
KR910003616Y1 (en) Rf synchronizing signal rectifying circuit
JPS5428107A (en) Drop-out detecting system
JPS53100202A (en) Optical reproducer
JPS53118012A (en) Automatic tracking device
JPS543509A (en) Magnetic reproducer
JPS57147141A (en) Optical type recorder and reproducer
FR2347741A1 (en) Signal suppression system for record player - has stereo playback head for generating pair of correlated signals which attenuate source signal
JPS57212647A (en) Method and device for recording and reproducing signal
JPS6435247A (en) Flaw detection of power transmission line
JPS5399909A (en) Magnetic recorder-reproducer
JPS5714263A (en) Mode discriminating circuit for video tape recorder