CA1106494A - Automatic head tracking system utilizing transducer deflecting means and synchronous demodulation of the envelope signal - Google Patents

Automatic head tracking system utilizing transducer deflecting means and synchronous demodulation of the envelope signal

Info

Publication number
CA1106494A
CA1106494A CA304,116A CA304116A CA1106494A CA 1106494 A CA1106494 A CA 1106494A CA 304116 A CA304116 A CA 304116A CA 1106494 A CA1106494 A CA 1106494A
Authority
CA
Canada
Prior art keywords
signal
transducer
head
deflection
track
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.)
Expired
Application number
CA304,116A
Other languages
English (en)
French (fr)
Inventor
Hitoshi Sakamoto
Yoshiaki Wakisaka
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1106494A publication Critical patent/CA1106494A/en
Expired 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)
CA304,116A 1977-06-04 1978-05-25 Automatic head tracking system utilizing transducer deflecting means and synchronous demodulation of the envelope signal Expired CA1106494A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP72050/77 1977-06-04
JP1977072050U JPS54307U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-06-04 1977-06-04

Publications (1)

Publication Number Publication Date
CA1106494A true CA1106494A (en) 1981-08-04

Family

ID=13478156

Family Applications (1)

Application Number Title Priority Date Filing Date
CA304,116A Expired CA1106494A (en) 1977-06-04 1978-05-25 Automatic head tracking system utilizing transducer deflecting means and synchronous demodulation of the envelope signal

Country Status (4)

Country Link
US (1) US4163994A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS54307U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1106494A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SU (1) SU986302A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113308A (en) * 1978-02-23 1979-09-04 Sony Corp Tracking device for magnetic head
US4318142A (en) * 1978-03-23 1982-03-02 Ampex Corporation Automatically compensated movable head servo circuit and method
JPS55102981A (en) * 1979-01-31 1980-08-06 Matsushita Electric Ind Co Ltd Rotary-head type magnetic recording and reproducing device
US4285017A (en) * 1979-02-05 1981-08-18 International Business Machines Corporation Stripe following in a helical scan device
US4290088A (en) * 1979-06-04 1981-09-15 Texas Instruments Incorporated System and method for erasing information from a flexible information storage media
US4280023A (en) * 1979-07-09 1981-07-21 Rca Corporation Stylus position sensing apparatus for video disc player
US4382292A (en) * 1979-07-09 1983-05-03 Rca Corporation Video disc player having stylus position sensing apparatus
US4277796A (en) * 1979-10-22 1981-07-07 Rca Corporation Slow down color processor for video disc mastering using a special mode VTR
US4320490A (en) * 1979-12-17 1982-03-16 Rca Corporation Video disc cartridge having a self retaining electrode
US4313189A (en) * 1979-12-20 1982-01-26 Rca Corporation Stylus position sensor for video disc player apparatus
FI803867A7 (fi) * 1979-12-20 1981-06-21 Rca Corp Videolevyn neulan aseman ilmaisinjärjestelmä.
JPS6139509Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1979-12-28 1986-11-12
JPS56105322A (en) * 1980-01-19 1981-08-21 Matsushita Electric Ind Co Ltd Driving device of electromechanical conversion element
JPS56156924A (en) * 1980-05-08 1981-12-03 Sony Corp Track following device
JPS57140083A (en) * 1981-02-24 1982-08-30 Sony Corp Video signal reproducing device
JPS57135583A (en) * 1981-02-14 1982-08-21 Sony Corp Video signal reproducing device
EP0304634B1 (en) * 1982-09-17 1993-01-20 Ampex Corporation An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus
JPS60158781A (ja) * 1984-01-27 1985-08-20 Sony Corp ビデオテ−プレコ−ダ−
US4670800A (en) * 1985-05-03 1987-06-02 Eastman Kodak Company Edge guided magnetic tape tracking
US4652945A (en) * 1985-05-03 1987-03-24 Eastman Kodak Company Flux sensitive tracking
US4611249A (en) * 1985-05-03 1986-09-09 Eastman Kodak Company Flux sensitive tracking
US4818948A (en) * 1986-08-05 1989-04-04 Pratt & Whitney Canada Inc. Capacitive bridge-type probe for measuring blade tip clearance
FR2608825B1 (fr) * 1986-12-19 1994-12-30 Enertec Dispositif pour la detection de la position d'une tete magnetique
US4795965A (en) * 1987-10-14 1989-01-03 Pratt & Whitney Canada Inc. Capacitance to voltage conversion circuit including a capacitive bridge and a capacitive offset
EP0372481B1 (en) * 1988-12-06 1995-08-09 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus
JPH0567315B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-12-19 1993-09-24 Sankyo Co
US6438360B1 (en) * 1999-07-22 2002-08-20 Motorola, Inc. Amplifier system with load control to produce an amplitude envelope
FI20041344A7 (fi) * 2004-10-15 2006-04-16 Valtion Teknillinen Tutkimuskeskus Anturi ja menetelmä komponenttiin kohdistuvan suureen mittaamiseksi

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126535A (en) * 1961-12-27 1964-03-24 Transducer positioning system
DE1275580B (de) * 1964-06-25 1968-08-22 Grundig Max Verfahren und Einrichtung zur Verminderung der Abweichung des Videokopfes von der Aufzeichnungsspur bei der Abtastung von Video-Magnetbandaufzeichnungen
US3526726A (en) * 1967-09-27 1970-09-01 Ampex Piezoelectric transducer assembly for positioning a magnetic record/reproduce head
US3706861A (en) * 1969-09-18 1972-12-19 Rca Corp Apparatus for mounting and spacing a signal transducer with respect to a recording medium
SU387423A1 (ru) * 1971-06-07 1973-06-21 УСТРОЙСТВО дл КОМПЕНСАЦИИ ПЕРЕКОСА МАГНИТНОЙ ЛЕНТЫ
US3787616A (en) * 1972-06-05 1974-01-22 Newell Ind Time base error correction system and method
SU421041A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-06-09 1974-03-25
JPS5633772B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-12-20 1981-08-06
NL7409513A (en) * 1974-07-15 1976-01-19 Philips Nv Servo system for controlling position of magnetic reading head - has selection signals written into data tracks with simultaneous reading of adjacent tracks
JPS598891B2 (ja) * 1974-11-26 1984-02-28 ソニー株式会社 回転磁気ヘッド装置
US4093885A (en) * 1976-03-19 1978-06-06 Ampex Corporation Transducer assembly vibration sensor
US4080636A (en) * 1976-03-19 1978-03-21 Ampex Corporation System for damping vibrations in a deflectable transducer
US4106065A (en) * 1976-03-19 1978-08-08 Ampex Corporation Drive circuitry for controlling movable video head
US4099211A (en) * 1976-09-13 1978-07-04 Ampex Corporation Positionable transducing mounting structure and driving system therefor
GB1560023A (en) * 1976-10-05 1980-01-30 Sony Corp Automatic magnetic-head scan tracking arrangements

Also Published As

Publication number Publication date
JPS54307U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-01-05
SU986302A3 (ru) 1982-12-30
US4163994A (en) 1979-08-07

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Legal Events

Date Code Title Description
MKEX Expiry