JPS57118485A - Variable speed control circuit of magnetic picture recorder and reproducer - Google Patents

Variable speed control circuit of magnetic picture recorder and reproducer

Info

Publication number
JPS57118485A
JPS57118485A JP56003767A JP376781A JPS57118485A JP S57118485 A JPS57118485 A JP S57118485A JP 56003767 A JP56003767 A JP 56003767A JP 376781 A JP376781 A JP 376781A JP S57118485 A JPS57118485 A JP S57118485A
Authority
JP
Japan
Prior art keywords
signal
sawtooth wave
head
suddenly
moment
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
JP56003767A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6324594B2 (enrdf_load_stackoverflow
Inventor
Nobuo Azuma
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56003767A priority Critical patent/JPS57118485A/ja
Publication of JPS57118485A publication Critical patent/JPS57118485A/ja
Publication of JPS6324594B2 publication Critical patent/JPS6324594B2/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 Velocity Or Acceleration (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP56003767A 1981-01-16 1981-01-16 Variable speed control circuit of magnetic picture recorder and reproducer Granted JPS57118485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003767A JPS57118485A (en) 1981-01-16 1981-01-16 Variable speed control circuit of magnetic picture recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003767A JPS57118485A (en) 1981-01-16 1981-01-16 Variable speed control circuit of magnetic picture recorder and reproducer

Publications (2)

Publication Number Publication Date
JPS57118485A true JPS57118485A (en) 1982-07-23
JPS6324594B2 JPS6324594B2 (enrdf_load_stackoverflow) 1988-05-21

Family

ID=11566313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003767A Granted JPS57118485A (en) 1981-01-16 1981-01-16 Variable speed control circuit of magnetic picture recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS57118485A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950677A (ja) * 1982-09-17 1984-03-23 Hitachi Ltd ビデオテ−プレコ−ダの可変速再生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950677A (ja) * 1982-09-17 1984-03-23 Hitachi Ltd ビデオテ−プレコ−ダの可変速再生装置

Also Published As

Publication number Publication date
JPS6324594B2 (enrdf_load_stackoverflow) 1988-05-21

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