JPS5764325A - Automatic tracking device of video tape recorder - Google Patents

Automatic tracking device of video tape recorder

Info

Publication number
JPS5764325A
JPS5764325A JP55136850A JP13685080A JPS5764325A JP S5764325 A JPS5764325 A JP S5764325A JP 55136850 A JP55136850 A JP 55136850A JP 13685080 A JP13685080 A JP 13685080A JP S5764325 A JPS5764325 A JP S5764325A
Authority
JP
Japan
Prior art keywords
signal
inputted
converter
microcomputer
supplied
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
JP55136850A
Other languages
Japanese (ja)
Other versions
JPS6258046B2 (en
Inventor
Masanobu Nishikata
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP55136850A priority Critical patent/JPS5764325A/en
Publication of JPS5764325A publication Critical patent/JPS5764325A/en
Publication of JPS6258046B2 publication Critical patent/JPS6258046B2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads

Abstract

PURPOSE:To execute a tracking control exactly, by sample-holding an envelope detection signal of a reproducing FM signal, making its output pass through an A/D converter, and executing a prescribed operation processing. CONSTITUTION:A signal reproduced from video signal 3a, 3b is inputted to a sample holding circuit 8 through a preamplifier 5, a BPF 6 and an envelope detecting circuit 7. The signal sampled at every horizontal synchronizing signal is inputted to a microcomputer 10 through an A/D converter 9. On the other hand, a signal from a pulse generator 11 is supplied to a reset terminal of a counter 13 whenever the video heads 3a, 3b track a recording track, and its output is inputted to the microcomputer 10. Subsequently, a head position data is supplied to bimorph elements 2a, 2b through a D/A converter 17 and a driving circuit 18. In this way, the tracking control is executed exactly.
JP55136850A 1980-09-30 1980-09-30 Automatic tracking device of video tape recorder Granted JPS5764325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136850A JPS5764325A (en) 1980-09-30 1980-09-30 Automatic tracking device of video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136850A JPS5764325A (en) 1980-09-30 1980-09-30 Automatic tracking device of video tape recorder

Publications (2)

Publication Number Publication Date
JPS5764325A true JPS5764325A (en) 1982-04-19
JPS6258046B2 JPS6258046B2 (en) 1987-12-03

Family

ID=15184957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136850A Granted JPS5764325A (en) 1980-09-30 1980-09-30 Automatic tracking device of video tape recorder

Country Status (1)

Country Link
JP (1) JPS5764325A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035320A (en) * 1983-06-17 1985-02-23 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Signal reproduction system
JPS6038717A (en) * 1983-08-11 1985-02-28 Akai Electric Co Ltd Information reproducer
EP0194445A2 (en) * 1985-02-08 1986-09-17 Matsushita Electric Industrial Co., Ltd. Auto tracking apparatus for video tape recorder
JPS6456226U (en) * 1987-10-02 1989-04-07
JPH01165058A (en) * 1987-12-21 1989-06-29 Mitsubishi Electric Corp Automatic tracking controller for magnetic recording and reproducing device
EP0327289A2 (en) * 1988-01-30 1989-08-09 Sony Corporation Magnetic recording and playback apparatus
EP0436114A2 (en) * 1989-12-30 1991-07-10 Sony Corporation A tracking control circuit
JPH03288312A (en) * 1990-04-03 1991-12-18 Mitsubishi Electric Corp Magnetic recording and reproducing method
JPH03288313A (en) * 1990-04-03 1991-12-18 Mitsubishi Electric Corp Magnetic recording and reproducing method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035320A (en) * 1983-06-17 1985-02-23 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Signal reproduction system
JPS6038717A (en) * 1983-08-11 1985-02-28 Akai Electric Co Ltd Information reproducer
EP0194445A2 (en) * 1985-02-08 1986-09-17 Matsushita Electric Industrial Co., Ltd. Auto tracking apparatus for video tape recorder
JPS6456226U (en) * 1987-10-02 1989-04-07
JPH01165058A (en) * 1987-12-21 1989-06-29 Mitsubishi Electric Corp Automatic tracking controller for magnetic recording and reproducing device
EP0327289A2 (en) * 1988-01-30 1989-08-09 Sony Corporation Magnetic recording and playback apparatus
EP0327289B1 (en) * 1988-01-30 1996-03-13 Sony Corporation Magnetic recording and playback apparatus
EP0436114A2 (en) * 1989-12-30 1991-07-10 Sony Corporation A tracking control circuit
JPH03288312A (en) * 1990-04-03 1991-12-18 Mitsubishi Electric Corp Magnetic recording and reproducing method
JPH03288313A (en) * 1990-04-03 1991-12-18 Mitsubishi Electric Corp Magnetic recording and reproducing method

Also Published As

Publication number Publication date
JPS6258046B2 (en) 1987-12-03

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