JPS5661027A - Tracking device - Google Patents

Tracking device

Info

Publication number
JPS5661027A
JPS5661027A JP13747679A JP13747679A JPS5661027A JP S5661027 A JPS5661027 A JP S5661027A JP 13747679 A JP13747679 A JP 13747679A JP 13747679 A JP13747679 A JP 13747679A JP S5661027 A JPS5661027 A JP S5661027A
Authority
JP
Japan
Prior art keywords
video
phase
rotating
track
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.)
Pending
Application number
JP13747679A
Other languages
Japanese (ja)
Inventor
Masaaki Kobayashi
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 JP13747679A priority Critical patent/JPS5661027A/en
Publication of JPS5661027A publication Critical patent/JPS5661027A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To avoid track-jump, by controlling mechanical position of magnetic head to magnetic tape, through the phase measurement of a reproduced video signal to the rotating phase of a video head. CONSTITUTION:Video heads 1, 2 are respectively fitted to the tip being a free end of electromechanical converting elements 21, 22. Another end of electromechanical converting elements 21, 22 is fitted to a rotating video disc 4, and a magnet 3 for rotating phase detection of the video heads 1, 2 and a phase detector 5 are respectively provided at the disc 4 and the fixed part side. By measuring points between a point showing the rotating phase of video heads, e.g., switching point of the video heads, and a point showing the phase of a reproduced video signal, for example, the time for a vertical synchronizing signal, it is judged whether a desired track is scanned or an adjacent track is scanned for the control, allowing to avoid track- jump.
JP13747679A 1979-10-23 1979-10-23 Tracking device Pending JPS5661027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13747679A JPS5661027A (en) 1979-10-23 1979-10-23 Tracking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13747679A JPS5661027A (en) 1979-10-23 1979-10-23 Tracking device

Publications (1)

Publication Number Publication Date
JPS5661027A true JPS5661027A (en) 1981-05-26

Family

ID=15199502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13747679A Pending JPS5661027A (en) 1979-10-23 1979-10-23 Tracking device

Country Status (1)

Country Link
JP (1) JPS5661027A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283020A (en) * 1985-05-16 1986-12-13 Sanyo Electric Co Ltd Head position detector
JPS6352362U (en) * 1986-09-24 1988-04-08

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528598A (en) * 1978-06-13 1980-02-29 Philips Nv Method and device for positioning regenerated element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528598A (en) * 1978-06-13 1980-02-29 Philips Nv Method and device for positioning regenerated element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283020A (en) * 1985-05-16 1986-12-13 Sanyo Electric Co Ltd Head position detector
JPS6352362U (en) * 1986-09-24 1988-04-08

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