FR2466081B1 - - Google Patents

Info

Publication number
FR2466081B1
FR2466081B1 FR7923580A FR7923580A FR2466081B1 FR 2466081 B1 FR2466081 B1 FR 2466081B1 FR 7923580 A FR7923580 A FR 7923580A FR 7923580 A FR7923580 A FR 7923580A FR 2466081 B1 FR2466081 B1 FR 2466081B1
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
FR7923580A
Other versions
FR2466081A1 (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.)
Bull SA
Original Assignee
Bull SA
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 Bull SA filed Critical Bull SA
Priority to FR7923580A priority Critical patent/FR2466081A1/fr
Priority to NL8004389A priority patent/NL8004389A/nl
Priority to JP12073280A priority patent/JPS5674869A/ja
Priority to US06/186,295 priority patent/US4379256A/en
Priority to GB8029526A priority patent/GB2060940B/en
Priority to SE8006552A priority patent/SE440956B/sv
Priority to IT24763/80A priority patent/IT1132971B/it
Priority to DE19803035473 priority patent/DE3035473A1/de
Publication of FR2466081A1 publication Critical patent/FR2466081A1/fr
Application granted granted Critical
Publication of FR2466081B1 publication Critical patent/FR2466081B1/fr
Granted 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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
    • G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
    • G05B19/231—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude
    • G05B19/232—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude with speed feedback only
FR7923580A 1979-09-21 1979-09-21 Dispositif de mesure de vitesse d'un systeme mobile par rapport a un support d'informations Granted FR2466081A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7923580A FR2466081A1 (fr) 1979-09-21 1979-09-21 Dispositif de mesure de vitesse d'un systeme mobile par rapport a un support d'informations
NL8004389A NL8004389A (nl) 1979-09-21 1980-07-31 Inrichting voor het meten van de snelheid van een beweegbaar stelsel ten opzichte van een informatie- drager.
JP12073280A JPS5674869A (en) 1979-09-21 1980-09-02 Speed measuring device for measuring speed of movinggsystem relative to data carrier
US06/186,295 US4379256A (en) 1979-09-21 1980-09-11 Apparatus and method for measuring the speed of a movable system with respect to a data carrier
GB8029526A GB2060940B (en) 1979-09-21 1980-09-12 Device for measuring the speed of a movable system with respect to a data carrier
SE8006552A SE440956B (sv) 1979-09-21 1980-09-18 Anordning for metning av en rorlig enhets hastighet relativt en informationsberare
IT24763/80A IT1132971B (it) 1979-09-21 1980-09-19 Dispositivo di misura di velocita' d'un sistema mobile rispetto ad un supporto di informazioni
DE19803035473 DE3035473A1 (de) 1979-09-21 1980-09-19 Einrichtung zum messen der bewegungsgeschwindigkeit eines abtastkopfsystems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7923580A FR2466081A1 (fr) 1979-09-21 1979-09-21 Dispositif de mesure de vitesse d'un systeme mobile par rapport a un support d'informations

Publications (2)

Publication Number Publication Date
FR2466081A1 FR2466081A1 (fr) 1981-03-27
FR2466081B1 true FR2466081B1 (fr) 1983-11-10

Family

ID=9229896

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923580A Granted FR2466081A1 (fr) 1979-09-21 1979-09-21 Dispositif de mesure de vitesse d'un systeme mobile par rapport a un support d'informations

Country Status (8)

Country Link
US (1) US4379256A (fr)
JP (1) JPS5674869A (fr)
DE (1) DE3035473A1 (fr)
FR (1) FR2466081A1 (fr)
GB (1) GB2060940B (fr)
IT (1) IT1132971B (fr)
NL (1) NL8004389A (fr)
SE (1) SE440956B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066673B1 (fr) * 1981-03-04 1987-09-09 Hitachi, Ltd. Procédé et appareil de commande de position angulaire
JPS58151885A (ja) * 1982-03-03 1983-09-09 Hitachi Ltd モ−タの位置制御方法
US4480217A (en) * 1982-12-14 1984-10-30 Storage Technology Corporation Automatic velocity calibrator for a velocity servo loop in a magnetic disk drive
FR2557722B1 (fr) * 1983-12-30 1986-04-11 Bull Sa Procede d'ecriture d'informations sur un support d'enregistrement
US4751441A (en) * 1985-05-31 1988-06-14 Cambrian Consultants, Inc. Transducer position control system for disk storage equipment
CA1261467A (fr) * 1985-11-28 1989-09-26 Akira Minami Dispositif de commande de servomecanisme de focalisation pour lecteur de disques optiques a reglage du decalage
GB2188720B (en) * 1986-04-04 1990-12-19 Data Recording Instr Co Improved position control system
US4714866A (en) * 1986-04-28 1987-12-22 Advanced Micro Devices, Inc. Rate-of-change signal generator using sampling techniques
US4740736A (en) * 1986-07-10 1988-04-26 Advanced Micro Devices, Inc. Servo data decoder for any amplitude dependent servo data encoding scheme
US4724370A (en) * 1986-10-14 1988-02-09 Konishiroku Photo Industries Co., Ltd. Servo system for a disk drive
FR2615995A1 (fr) * 1987-05-27 1988-12-02 Bull Sa Mode d'ecriture d'informations sur un support d'enregistrement magnetique
US4949201A (en) * 1988-04-01 1990-08-14 Micropolis Corporation Disk drive head position controller with static bias compensation and plural velocity detectors
JP2642672B2 (ja) * 1988-06-29 1997-08-20 富士通株式会社 光ディスク装置
EP0431645B1 (fr) * 1989-12-08 1996-03-20 Hitachi Koki Co., Ltd. Système pour la gestion de rotors centrifuges
DE69130011T2 (de) * 1990-06-28 1999-02-04 Mitsubishi Electric Corp Vorrichtung zur Kontrolle der Lage eines beweglichen Kopfes in einem Aufnahme- und Wiedergabegerät
DE4113841C2 (de) * 1991-04-27 1997-01-09 Deutsche Forsch Luft Raumfahrt Einrichtung zur Messung einer translatorischen Wegänderung
JP7013044B2 (ja) 2020-06-25 2022-01-31 有限会社タクショー 鋼板用クリーナ装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554980A (en) * 1965-12-23 1971-01-12 Kanegafuchi Spinning Co Ltd Method for preventing stickiness of fibres consisting of or comprising copolyamide
US3504260A (en) * 1967-04-19 1970-03-31 Singer General Precision Motion system electrical controls
US3544980A (en) * 1968-03-22 1970-12-01 Peripheral Systems Corp Magnetic recording disc drive with head positioning and collision avoidance apparatus
US3629560A (en) * 1969-06-06 1971-12-21 Houdaille Apparatus for controlled deceleration in numerical positioning
FR2094610A5 (fr) * 1970-06-26 1972-02-04 Bull General Electric
US3758757A (en) * 1972-03-08 1973-09-11 Ibm Exponential predictor and sampled-data systems
DE2229395A1 (de) * 1972-06-16 1974-01-03 Ibm Deutschland Vorrichtung zur steuerung des spurzugriffs bei einem magnetplattenspeicher
JPS562669B2 (fr) * 1973-01-17 1981-01-21
JPS5249039Y2 (fr) * 1973-08-03 1977-11-08
JPS562514B2 (fr) * 1973-12-28 1981-01-20
FR2258661B1 (fr) * 1974-01-18 1977-08-26 Honeywell Bull Soc Ind
US4030132A (en) * 1975-03-27 1977-06-14 Memorex Corporation Dual mode velocity servo control for a linear actuator motor
US4031443A (en) * 1975-05-22 1977-06-21 Compagnie Honeywell Bull (Societe Anonyme) Apparatus for positionally controlling a movable head assembly
FR2336768A1 (fr) * 1975-12-24 1977-07-22 Honeywell Bull Soc Ind Procede pour deplacer un systeme mobile par rapport a un support d'enregistrement d'informations et dispositif pour le mettre en oeuvre
FR2337472A1 (fr) * 1975-12-29 1977-07-29 Telediffusion Fse Systeme de commande du positionnement de la tete d'un lecteur de disque et notamment de videodisque
US4109184A (en) * 1976-03-19 1978-08-22 Ampex Corporation Method and apparatus for providing a stable, high gain servo system
FR2346806A1 (fr) * 1976-03-31 1977-10-28 Honeywell Bull Soc Ind Mode d'ecriture d'adresses sur un support d'enregist rement magnetique
FR2349191A1 (fr) * 1976-04-23 1977-11-18 Thomson Brandt Lecteur optique de disque d'information comportant un dispositif d'acces automatique aux informations
US4200827A (en) * 1977-06-29 1980-04-29 International Business Machines Corporation Positioning system employing feedforward and feedback control

Also Published As

Publication number Publication date
US4379256A (en) 1983-04-05
IT8024763A0 (it) 1980-09-19
GB2060940B (en) 1984-01-25
SE440956B (sv) 1985-08-26
NL8004389A (nl) 1981-03-24
DE3035473C2 (fr) 1990-01-11
JPS5674869A (en) 1981-06-20
IT1132971B (it) 1986-07-09
FR2466081A1 (fr) 1981-03-27
JPS63867B2 (fr) 1988-01-08
SE8006552L (sv) 1981-03-22
DE3035473A1 (de) 1981-04-09
GB2060940A (en) 1981-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse