JPS56153528A - Detector for height of head in magnetic recorder and reproducer - Google Patents

Detector for height of head in magnetic recorder and reproducer

Info

Publication number
JPS56153528A
JPS56153528A JP5391280A JP5391280A JPS56153528A JP S56153528 A JPS56153528 A JP S56153528A JP 5391280 A JP5391280 A JP 5391280A JP 5391280 A JP5391280 A JP 5391280A JP S56153528 A JPS56153528 A JP S56153528A
Authority
JP
Japan
Prior art keywords
rotating
head
heads
recording
height
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
JP5391280A
Other languages
Japanese (ja)
Inventor
Toshio Kaneshiro
Yasuo Hachi
Seisuke Hirakuri
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP5391280A priority Critical patent/JPS56153528A/en
Publication of JPS56153528A publication Critical patent/JPS56153528A/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

Landscapes

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

Abstract

PURPOSE:To keep the head to a given height, by providing the magnetic detector in the vicinity of the rotating head at the position of rotating range where the signal recording for the rotating heat is not possible, and using the result of detection of the magnetic field causing by the recording signal current as the head height detection signal. CONSTITUTION:The magnetic shield plate 23 clipped between the upper and lower detection heads 6a, 6b is provided in contact with each other so as to align to the rotating magnetic heads A, B at a given height. The set position is in an angle range where no recording is made for the rotating heads A, B. When the rotating head comes to the position of the rotating head 6 during revolution, the difference of the output of the detecting heads 6a, 6b due to the magnetic field based on the recording signal current is detected via the amplifiers 25a, 25b, detection circuits 26a, 26b and differential amplifier 27, the error signal is fed to the driving coil 21 to keep the heads A, B at a given height.
JP5391280A 1980-04-23 1980-04-23 Detector for height of head in magnetic recorder and reproducer Pending JPS56153528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5391280A JPS56153528A (en) 1980-04-23 1980-04-23 Detector for height of head in magnetic recorder and reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5391280A JPS56153528A (en) 1980-04-23 1980-04-23 Detector for height of head in magnetic recorder and reproducer

Publications (1)

Publication Number Publication Date
JPS56153528A true JPS56153528A (en) 1981-11-27

Family

ID=12955919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5391280A Pending JPS56153528A (en) 1980-04-23 1980-04-23 Detector for height of head in magnetic recorder and reproducer

Country Status (1)

Country Link
JP (1) JPS56153528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03503692A (en) * 1988-04-08 1991-08-15 アムペクス　コーポレイション Improved mounting structure for magnetic transducers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03503692A (en) * 1988-04-08 1991-08-15 アムペクス　コーポレイション Improved mounting structure for magnetic transducers

Similar Documents

Publication Publication Date Title
JPS56119917A (en) Track deviation detecting system in magnetic recording and reproducing device
JPS57176505A (en) Bias magnetic field applying system
JPS56153528A (en) Detector for height of head in magnetic recorder and reproducer
JPS55125532A (en) Magnetic recorder/reproducer
JPS5668923A (en) Tracking device of magnetic reproducing device
JPS5654617A (en) Automatic gain control system
JPS53118012A (en) Automatic tracking device
JPS56117328A (en) Information reproducing device
JPS57120209A (en) Setting device for optimum operation characteristics of magnetic recorder and reproducer
GB1267434A (en) Apparatus and method of testing a magnetic recording medium
JPS543507A (en) Magnetic recorder and magnetic reproducer
JPS5737789A (en) Readout system for index of magnetic recording medium
JPS57203264A (en) Magnetic disc driving device
JPS5641535A (en) Recording track detection circuit of optical disk
JPS57176506A (en) Recording system of tape recorder
JPS56127961A (en) Signal level measuring device
JPS5589919A (en) Information recorder
JPS5718068A (en) Detector of maximum recording level for magnetic tape
JPS56122961A (en) Rotation speed detecting device
JPS5718007A (en) Reproducing device of magnetic sheet
JPS5647944A (en) Magnetic tape feed controlling system
JPS5758212A (en) Magnetic disk defect detecting device
JPS6489094A (en) Recording and reproducing device for magnetic tape identifying signal
JPS5641538A (en) Tracking control circuit of optical disk memory unit
JPS57183670A (en) Position shift detector for magnetic head