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
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
- H10N30/101—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—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Control Of Position Or Direction (AREA)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54307U (fr) * | 1977-06-04 | 1979-01-05 | ||
JPS5492308A (en) * | 1977-12-29 | 1979-07-21 | Sony Corp | Head tracking device in recorder-reproducer |
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 |
CA1147456A (fr) * | 1978-03-23 | 1983-05-31 | Raymond F. Ravizza | Servomecanisme a compensation automatique pour tete mobile et methode de fonctionnement |
US4163993A (en) * | 1978-03-23 | 1979-08-07 | Ampex Corporation | Continuous slow motion automatic tracking system |
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 |
DE3575033D1 (de) * | 1985-03-01 | 1990-02-01 | Sanyo Electric Co | Geraet zur wiedergabe von videosignalen und kopfpositionierungssystem mit pilotsignalen. |
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 |
US6421805B1 (en) | 1998-11-16 | 2002-07-16 | Exabyte Corporation | Rogue packet detection and correction method for data storage device |
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 |
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)
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 |
-
1976
- 1976-04-16 US US05/677,828 patent/US4106065A/en not_active Expired - Lifetime
-
1977
- 1977-03-09 NL NLAANVRAGE7702547,A patent/NL177450B/xx not_active Application Discontinuation
- 1977-03-11 IT IT48437/77A patent/IT1086791B/it active
- 1977-03-15 GB GB10991/77A patent/GB1572050A/en not_active Expired
- 1977-03-17 DE DE19772711691 patent/DE2711691A1/de not_active Ceased
- 1977-03-17 FR FR7707939A patent/FR2345049A1/fr active Granted
- 1977-03-18 BE BE175905A patent/BE852623A/fr not_active IP Right Cessation
- 1977-03-18 AT AT0187877A patent/ATA187877A/de not_active Application Discontinuation
- 1977-03-19 JP JP52031011A patent/JPS5818687B2/ja not_active Expired
- 1977-03-21 CA CA274,424A patent/CA1125910A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE852623A (fr) | 1977-07-18 |
FR2345049A1 (fr) | 1977-10-14 |
JPS5818687B2 (ja) | 1983-04-14 |
NL177450B (nl) | 1985-04-16 |
NL7702547A (nl) | 1977-09-21 |
DE2711691B2 (fr) | 1980-11-13 |
ATA187877A (de) | 1983-05-15 |
CA1125910A (fr) | 1982-06-15 |
US4106065A (en) | 1978-08-08 |
IT1086791B (it) | 1985-05-31 |
DE2711691A1 (de) | 1977-11-24 |
JPS52117108A (en) | 1977-10-01 |
GB1572050A (en) | 1980-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |