JPS5798132A - Adjusting method of height of rotary head - Google Patents

Adjusting method of height of rotary head

Info

Publication number
JPS5798132A
JPS5798132A JP55174339A JP17433980A JPS5798132A JP S5798132 A JPS5798132 A JP S5798132A JP 55174339 A JP55174339 A JP 55174339A JP 17433980 A JP17433980 A JP 17433980A JP S5798132 A JPS5798132 A JP S5798132A
Authority
JP
Japan
Prior art keywords
output
signal
comparator
rotary head
playback
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
JP55174339A
Other languages
Japanese (ja)
Other versions
JPS6348082B2 (en
Inventor
Masao Tomita
Masahiro Honjo
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 JP55174339A priority Critical patent/JPS5798132A/en
Publication of JPS5798132A publication Critical patent/JPS5798132A/en
Publication of JPS6348082B2 publication Critical patent/JPS6348082B2/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 keep the maximum output of a playback pilot signal, by reproducing a pilot signal recorded at tape halt state, applying it to both inputs of a comparator via two sample hold circuits, and making switch every time when the output changes. CONSTITUTION:When a start switch 20 is depressed, a signal f1 is recorded with a rotary head 3 via FFs 41,42' and differentiation circuit 54, and the count value of a counter 27 is reset. A playback signal from a rotary head 4 is inputted to sample hold circuits SHs 44,45 via a band pass filter 31. The signal is subject to sample hold with sampling pulses from AND circuits 51,52 and the output is applied to terminals of a comparator 46. If positive input is greater than negative input, the output H of the comparator 46 is applied to an FF 47. The Q output is at H with the signal from a delay circuit 55, and an applying voltage given to a drive element 6 for the change through a differentiation circuit 48, latch circuit 33, counter 27, D/A conversion circuit 28, and amplifier 29, is increased to keep the maximum playback output.
JP55174339A 1980-12-10 1980-12-10 Adjusting method of height of rotary head Granted JPS5798132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55174339A JPS5798132A (en) 1980-12-10 1980-12-10 Adjusting method of height of rotary head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55174339A JPS5798132A (en) 1980-12-10 1980-12-10 Adjusting method of height of rotary head

Publications (2)

Publication Number Publication Date
JPS5798132A true JPS5798132A (en) 1982-06-18
JPS6348082B2 JPS6348082B2 (en) 1988-09-27

Family

ID=15976903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55174339A Granted JPS5798132A (en) 1980-12-10 1980-12-10 Adjusting method of height of rotary head

Country Status (1)

Country Link
JP (1) JPS5798132A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60500008A (en) * 1982-12-08 1985-01-10 ゲラン，モ−リス Continuous digester for producing biomethane from organic materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60500008A (en) * 1982-12-08 1985-01-10 ゲラン，モ−リス Continuous digester for producing biomethane from organic materials

Also Published As

Publication number Publication date
JPS6348082B2 (en) 1988-09-27

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