JPS56101624A - Autotracking system - Google Patents

Autotracking system

Info

Publication number
JPS56101624A
JPS56101624A JP429980A JP429980A JPS56101624A JP S56101624 A JPS56101624 A JP S56101624A JP 429980 A JP429980 A JP 429980A JP 429980 A JP429980 A JP 429980A JP S56101624 A JPS56101624 A JP S56101624A
Authority
JP
Japan
Prior art keywords
tracking
passed
reproducing head
head
signal
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
JP429980A
Other languages
Japanese (ja)
Inventor
Kenji Kimura
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP429980A priority Critical patent/JPS56101624A/en
Publication of JPS56101624A publication Critical patent/JPS56101624A/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

Landscapes

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

Abstract

PURPOSE:To realize the best tracking automatically by slantingly fixing a tracking detecting head, having track width greater than that of a reproducing head, to the reproducing head and by detecting as a tracking differential signal the phase shift between both signals from them. CONSTITUTION:To housing 1 of reproducing head 2, tracking detecting head 4 having track width greater than that of reproducing head 2 is slantingly fixed while their heads coincide with each other. A signal reproduced by reproducing head 2 is passed through voltage amplifier 14 to obtain reproduced signal output 17, which is also passed through synchronous separator 15, where a horizontal synchronizing signal is separated to trigger saw-tooth wave generator 16, so that a saw-tooth wave is inputted to phase comparator 18. A reproduced signal from detecting head 4, on the other hand, is sent to voltage amplifier 21 and synchronous separator 22, whose output horizontal synchronizing signal is passed through phase delay device 23 and sampling pulse generator 24 to send pulses to phase comparator 18. The output of phase comparator 18 is passed through current amplifier 19 and DC motor 9 for automatic control so that the best tracking can be performed.
JP429980A 1980-01-18 1980-01-18 Autotracking system Pending JPS56101624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP429980A JPS56101624A (en) 1980-01-18 1980-01-18 Autotracking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP429980A JPS56101624A (en) 1980-01-18 1980-01-18 Autotracking system

Publications (1)

Publication Number Publication Date
JPS56101624A true JPS56101624A (en) 1981-08-14

Family

ID=11580627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP429980A Pending JPS56101624A (en) 1980-01-18 1980-01-18 Autotracking system

Country Status (1)

Country Link
JP (1) JPS56101624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406302A1 (en) * 1988-03-22 1991-01-09 Carlisle Memory Products Group Incorporated Recording system having head transducers with controlled skew

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180213A (en) * 1975-01-10 1976-07-13 Tokyo Shibaura Electric Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180213A (en) * 1975-01-10 1976-07-13 Tokyo Shibaura Electric Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406302A1 (en) * 1988-03-22 1991-01-09 Carlisle Memory Products Group Incorporated Recording system having head transducers with controlled skew

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