JPS5766525A - Driving device for electromechanical transducer - Google Patents

Driving device for electromechanical transducer

Info

Publication number
JPS5766525A
JPS5766525A JP55141208A JP14120880A JPS5766525A JP S5766525 A JPS5766525 A JP S5766525A JP 55141208 A JP55141208 A JP 55141208A JP 14120880 A JP14120880 A JP 14120880A JP S5766525 A JPS5766525 A JP S5766525A
Authority
JP
Japan
Prior art keywords
filter
period
signal
video
switch circuit
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
JP55141208A
Other languages
Japanese (ja)
Other versions
JPS631646B2 (en
Inventor
Masaaki Kobayashi
Koichi Ikata
Akihiro Takeuchi
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 JP55141208A priority Critical patent/JPS5766525A/en
Publication of JPS5766525A publication Critical patent/JPS5766525A/en
Publication of JPS631646B2 publication Critical patent/JPS631646B2/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

Landscapes

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

Abstract

PURPOSE:To prevent unnecessary mechanical vibrations by simple constitutian by supplying a driving voltage to an electromechanical transducing element through a low-pass filter when a video head does not scan a video track. CONSTITUTION:The output signal of an arithmetic circuit 33 is applied to high-dielectric-strength amplifier 31 and 32 through filter circuits 41 and 42. For example, when a control signal for the switch circuit 104 of the filter circut 41 has a level H, switches 111-113 of the switch circuit 104 are closed. Namely, a signal supplied to an input terminal 101 is led to an output terminal 105 through an LPF102 during a period Q. In a period R, on the other hand, the signal is outputted through an LPF103 and in a period S, it is outputted directly. Using a filter having a switching type like this eliminates unnecessary high-frequency component waveforms applied to electromechanical transducing elements 21 and 22, so that the vibrations of the tips of video heads 1 and 2 are nearly eliminated. Thus, unnecessary mechanical vibrations are prevented by the simple structure.
JP55141208A 1980-10-09 1980-10-09 Driving device for electromechanical transducer Granted JPS5766525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55141208A JPS5766525A (en) 1980-10-09 1980-10-09 Driving device for electromechanical transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55141208A JPS5766525A (en) 1980-10-09 1980-10-09 Driving device for electromechanical transducer

Publications (2)

Publication Number Publication Date
JPS5766525A true JPS5766525A (en) 1982-04-22
JPS631646B2 JPS631646B2 (en) 1988-01-13

Family

ID=15286650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55141208A Granted JPS5766525A (en) 1980-10-09 1980-10-09 Driving device for electromechanical transducer

Country Status (1)

Country Link
JP (1) JPS5766525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158781A (en) * 1984-01-27 1985-08-20 Sony Corp Video tape recorder
JPS60158782A (en) * 1984-01-27 1985-08-20 Sony Corp Video tape recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158781A (en) * 1984-01-27 1985-08-20 Sony Corp Video tape recorder
JPS60158782A (en) * 1984-01-27 1985-08-20 Sony Corp Video tape recorder

Also Published As

Publication number Publication date
JPS631646B2 (en) 1988-01-13

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