JPS5736431A - Automatic tracking device - Google Patents

Automatic tracking device

Info

Publication number
JPS5736431A
JPS5736431A JP11258080A JP11258080A JPS5736431A JP S5736431 A JPS5736431 A JP S5736431A JP 11258080 A JP11258080 A JP 11258080A JP 11258080 A JP11258080 A JP 11258080A JP S5736431 A JPS5736431 A JP S5736431A
Authority
JP
Japan
Prior art keywords
supplied
signals
video
amplifiers
heads
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
JP11258080A
Other languages
Japanese (ja)
Other versions
JPS6326457B2 (en
Inventor
Masaaki Kobayashi
Seiji Fujisawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11258080A priority Critical patent/JPS5736431A/en
Publication of JPS5736431A publication Critical patent/JPS5736431A/en
Publication of JPS6326457B2 publication Critical patent/JPS6326457B2/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

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To reproduce a high-quality picture, by securing an accurate scan on a recorded video track with a video head during reproduction. CONSTITUTION:The output signals (RF signals) of video heads 1 and 2 are supplied to amplifiers 9 and 10 via rotary transformers 7 and 8, respectively and then supplied to an output terminal 34 through a video head changeover switch 11 and then an FM demodulator 33 as well as to a synchronous wave detector 13 functioning as a multiplying means via an envelope wave detector 12. The output signal of the detector 13 is supplied to low-pass filters 16-19, and the output signals of these filters are added at 36 and 40 together to be supplied to high pressure resistant amplifiers 31 and 32. These outputs are then supplied to electromechanical transducers 21 and 22 in the form of the displacement signals. In such way, a scanning period of the heads 1 and 2 is divided into two sections respectively to ensure the highly efficient correction of a shift of track.
JP11258080A 1980-08-14 1980-08-14 Automatic tracking device Granted JPS5736431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11258080A JPS5736431A (en) 1980-08-14 1980-08-14 Automatic tracking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11258080A JPS5736431A (en) 1980-08-14 1980-08-14 Automatic tracking device

Publications (2)

Publication Number Publication Date
JPS5736431A true JPS5736431A (en) 1982-02-27
JPS6326457B2 JPS6326457B2 (en) 1988-05-30

Family

ID=14590273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11258080A Granted JPS5736431A (en) 1980-08-14 1980-08-14 Automatic tracking device

Country Status (1)

Country Link
JP (1) JPS5736431A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992482A (en) * 1982-11-16 1984-05-28 Seiichiro Sogo Sound recording card

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992482A (en) * 1982-11-16 1984-05-28 Seiichiro Sogo Sound recording card

Also Published As

Publication number Publication date
JPS6326457B2 (en) 1988-05-30

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