FR2345049B1 - - Google Patents

Info

Publication number
FR2345049B1
FR2345049B1 FR7707939A FR7707939A FR2345049B1 FR 2345049 B1 FR2345049 B1 FR 2345049B1 FR 7707939 A FR7707939 A FR 7707939A FR 7707939 A FR7707939 A FR 7707939A FR 2345049 B1 FR2345049 B1 FR 2345049B1
Authority
FR
France
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
FR7707939A
Other versions
FR2345049A1 (fr
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Publication of FR2345049A1 publication Critical patent/FR2345049A1/fr
Application granted granted Critical
Publication of FR2345049B1 publication Critical patent/FR2345049B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/1071—Piezoelectric or electrostrictive devices with electrical and mechanical input and output, e.g. having combined actuator and sensor parts
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Drive or control circuitry or methods for piezoelectric or electrostrictive devices not otherwise provided for
FR7707939A 1976-03-19 1977-03-17 Montage d'excitation pour la commande d'une tete video mobile Granted FR2345049A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66858176A 1976-03-19 1976-03-19
US05/677,828 US4106065A (en) 1976-03-19 1976-04-16 Drive circuitry for controlling movable video head

Publications (2)

Publication Number Publication Date
FR2345049A1 FR2345049A1 (fr) 1977-10-14
FR2345049B1 true FR2345049B1 (fr) 1980-05-09

Family

ID=27099944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7707939A Granted FR2345049A1 (fr) 1976-03-19 1977-03-17 Montage d'excitation pour la commande d'une tete video mobile

Country Status (10)

Country Link
US (1) US4106065A (fr)
JP (1) JPS5818687B2 (fr)
AT (1) ATA187877A (fr)
BE (1) BE852623A (fr)
CA (1) CA1125910A (fr)
DE (1) DE2711691A1 (fr)
FR (1) FR2345049A1 (fr)
GB (1) GB1572050A (fr)
IT (1) IT1086791B (fr)
NL (1) NL177450B (fr)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5492308A (en) * 1977-12-29 1979-07-21 Sony Corp Head tracking device in recorder-reproducer
JPS54307U (fr) * 1977-06-04 1979-01-05
US4169276A (en) * 1977-10-17 1979-09-25 Ampex Corporation Drive circuit for controlling a movable magnetic head
GB2012106B (en) * 1977-12-06 1982-06-23 Sony Corp Electro-mechanical transducers
DE2801969C2 (de) * 1978-01-18 1982-11-04 Robert Bosch Gmbh, 7000 Stuttgart Sensor für Schwingungen
JPS54113308A (en) * 1978-02-23 1979-09-04 Sony Corp Tracking device for magnetic head
US4163993A (en) * 1978-03-23 1979-08-07 Ampex Corporation Continuous slow motion automatic tracking system
CA1147456A (fr) * 1978-03-23 1983-05-31 Raymond F. Ravizza Servomecanisme a compensation automatique pour tete mobile et methode de fonctionnement
US4319289A (en) 1978-03-23 1982-03-09 Ampex Corporation Movable head automatic position acquisition circuit and method
NL7805802A (nl) * 1978-05-29 1979-12-03 Philips Nv Inrichting voor het besturen van een pieezo-elektrisch positioneringselement.
US4188645A (en) * 1978-11-02 1980-02-12 Burroughs Corporation Piezoelectric servo for disk drive
JPS55102981A (en) * 1979-01-31 1980-08-06 Matsushita Electric Ind Co Ltd Rotary-head type magnetic recording and reproducing device
AU539426B2 (en) * 1979-03-15 1984-09-27 Sony Corporation Automatic head height control apparatus
DE2918259A1 (de) * 1979-05-07 1980-11-20 Sony Corp Verfahren und vorrichtung zum beseitigen der remanenten auslenkung in einer piezokeramischen kopfhalterung eines video-rekorders
GB2050671B (en) * 1979-06-09 1983-08-17 Sony Corp Rotary transducer head assemblies
JPS56153527A (en) * 1980-04-12 1981-11-27 Hitachi Denshi Ltd Piezoelectric bimorph type transducer
JPS56160085A (en) * 1980-05-14 1981-12-09 Hitachi Denshi Ltd Piezoelectric bimorph type transducer
US4374402A (en) * 1980-06-27 1983-02-15 Burroughs Corporation Piezoelectric transducer mounting structure and associated techniques
US4666315A (en) * 1981-06-12 1987-05-19 International Business Machines Corporation Planar and cylindrical oscillating pneumatodynamic bearings
GB2104283B (en) * 1981-07-24 1986-02-05 Litton Systems Inc Piezoelectric transducer
US4451859A (en) * 1982-04-02 1984-05-29 Ampex Corporation Magnetic video head position control
US4533186A (en) * 1983-02-28 1985-08-06 International Business Machines Corporation Cylindrical type squeeze bearing systems with bearing and driving elements attached in areas of maximum deflection
JPS6085753U (ja) * 1983-11-18 1985-06-13 日本ビクター株式会社 磁気テ−プ記録再生装置
EP0192800B1 (fr) * 1985-03-01 1989-12-27 Sanyo Electric Co., Ltd. Appareil de reproduction de signaux vidéo et système de positionnement des têtes employant des signaux pilotes
US4636893A (en) * 1985-09-06 1987-01-13 Eastman Kodak Company Piezoelectric driven mass storage
US5057953A (en) * 1988-03-31 1991-10-15 Applied Magnetics Corporation Head slider suspension assembly load beam having a fundamental mode vibration characteristic in the range of about 2000 hertz to about 4000 hertz
US5101309A (en) * 1988-08-23 1992-03-31 Mitsubishi Denki Kabushiki Kaisha Apparatus for automatically optimizing magnetic recording and playback
US5047883A (en) * 1990-02-07 1991-09-10 Ampex Corporation Pantograph head mount having double leaves integral with a rigid tip structure
US5050018A (en) * 1990-04-19 1991-09-17 Exabyte Corporation Apparatus and method for reading helically recorded tracks and rereading tracks as necessary
US5191491A (en) * 1990-11-09 1993-03-02 Exabyte Corporation Method and apparatus for reading distorted helical stripes
US5349481A (en) * 1993-06-10 1994-09-20 Exabyte Corporation Apparatus and method for distorted track data recovery by rewinding and re-reading the tape at a slower than nominal speed
JPH08212524A (ja) * 1994-10-31 1996-08-20 Daewoo Electron Co Ltd ビデオカセットレコーダ用ヘッドドラムアセンブリ
JP3274047B2 (ja) * 1995-10-05 2002-04-15 株式会社豊田中央研究所 圧電アクチュエータの駆動装置および駆動方法
US6307701B1 (en) 1998-10-20 2001-10-23 Ecrix Corporation Variable speed recording method and apparatus for a magnetic tape drive
US6367047B1 (en) 1998-10-20 2002-04-02 Ecrix Multi-level error detection and correction technique for data storage recording device
US6381706B1 (en) 1998-10-20 2002-04-30 Ecrix Corporation Fine granularity rewrite method and apparatus for data storage device
US6246551B1 (en) 1998-10-20 2001-06-12 Ecrix Corporation Overscan helical scan head for non-tracking tape subsystems reading at up to 1X speed and methods for simulation of same
US6308298B1 (en) 1998-11-16 2001-10-23 Ecrix Corporation Method of reacquiring clock synchronization on a non-tracking helical scan tape device
US6603618B1 (en) 1998-11-16 2003-08-05 Exabyte Corporation Method and system for monitoring and adjusting tape position using control data packets
US6421805B1 (en) 1998-11-16 2002-07-16 Exabyte Corporation Rogue packet detection and correction method for data storage device
US6367048B1 (en) 1998-11-16 2002-04-02 Mcauliffe Richard Method and apparatus for logically rejecting previously recorded track residue from magnetic media
US6364234B1 (en) 2000-03-10 2002-04-02 Michael Donald Langiano Tape loop/slack prevention method and apparatus for tape drive
US6624960B1 (en) 2000-03-10 2003-09-23 Exabyte Corporation Current sensing drum/cleaning wheel positioning method and apparatus for magnetic storage system
FR2819649B1 (fr) * 2001-01-17 2003-03-07 Sagem Moteur piezo-electrique
JP2006066655A (ja) * 2004-08-27 2006-03-09 Alps Electric Co Ltd 電気機械エネルギー変換素子の駆動方法及び前記電気機械エネルギー変換素子の駆動装置
DE102006046593B4 (de) * 2006-09-30 2009-12-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vorrichtung zur Reduktion von Schwingungen einer Struktur
DE102009023318B3 (de) * 2009-05-29 2010-12-02 Continental Automotive Gmbh Schaltungsanordnung und Verfahren zum Betätigen eines Piezoventils

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
JPS5818687B2 (ja) 1983-04-14
BE852623A (fr) 1977-07-18
ATA187877A (de) 1983-05-15
CA1125910A (fr) 1982-06-15
DE2711691B2 (fr) 1980-11-13
FR2345049A1 (fr) 1977-10-14
JPS52117108A (en) 1977-10-01
DE2711691A1 (de) 1977-11-24
GB1572050A (en) 1980-07-23
IT1086791B (it) 1985-05-31
US4106065A (en) 1978-08-08
NL7702547A (nl) 1977-09-21
NL177450B (nl) 1985-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse