FR2472298B1 - - Google Patents

Info

Publication number
FR2472298B1
FR2472298B1 FR7931486A FR7931486A FR2472298B1 FR 2472298 B1 FR2472298 B1 FR 2472298B1 FR 7931486 A FR7931486 A FR 7931486A FR 7931486 A FR7931486 A FR 7931486A FR 2472298 B1 FR2472298 B1 FR 2472298B1
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
FR7931486A
Other languages
French (fr)
Other versions
FR2472298A1 (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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7931486A priority Critical patent/FR2472298A1/fr
Priority to US06/212,549 priority patent/US4381556A/en
Priority to DE19803047880 priority patent/DE3047880A1/de
Priority to NL8006870A priority patent/NL8006870A/nl
Publication of FR2472298A1 publication Critical patent/FR2472298A1/fr
Application granted granted Critical
Publication of FR2472298B1 publication Critical patent/FR2472298B1/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/34—Guiding record carriers during transducing operation, e.g. for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
FR7931486A 1979-12-21 1979-12-21 Dispositif permettant de deplacer longitudinalement un moteur de rotation, et lecteur de video-disque comprenant un tel dispositif Granted FR2472298A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7931486A FR2472298A1 (fr) 1979-12-21 1979-12-21 Dispositif permettant de deplacer longitudinalement un moteur de rotation, et lecteur de video-disque comprenant un tel dispositif
US06/212,549 US4381556A (en) 1979-12-21 1980-12-03 Videodisc reader with longitudinally displaced turntable
DE19803047880 DE3047880A1 (de) 1979-12-21 1980-12-18 Vorrichtung zur laengsverschiebung eines rotationsmotors und damit versehene videoplatten-lesevorrichtung
NL8006870A NL8006870A (nl) 1979-12-21 1980-12-18 Inrichting voor het in de lengterichting verplaatsen van een rotatiemotor en videoplaatafleesinrichting die een dergelijke inrichting bevat.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931486A FR2472298A1 (fr) 1979-12-21 1979-12-21 Dispositif permettant de deplacer longitudinalement un moteur de rotation, et lecteur de video-disque comprenant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2472298A1 FR2472298A1 (fr) 1981-06-26
FR2472298B1 true FR2472298B1 (https=) 1982-10-22

Family

ID=9233094

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931486A Granted FR2472298A1 (fr) 1979-12-21 1979-12-21 Dispositif permettant de deplacer longitudinalement un moteur de rotation, et lecteur de video-disque comprenant un tel dispositif

Country Status (4)

Country Link
US (1) US4381556A (https=)
DE (1) DE3047880A1 (https=)
FR (1) FR2472298A1 (https=)
NL (1) NL8006870A (https=)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186237A (en) * 1981-05-12 1982-11-16 Pioneer Video Corp Crosstalk eliminating device for recorded information reproducing device
US4394667A (en) * 1982-03-26 1983-07-19 Xerox Corporation Radial access drive for an optical disk recorder
NL8300133A (nl) * 1983-01-14 1984-08-01 Philips Nv Inrichting voor het met behulp van een stralingsbundel inschrijven en/of uitlezen van informatie.
US4553230A (en) * 1984-08-20 1985-11-12 Paulson Rollie W Vibration free turntable apparatus
US5319622A (en) * 1990-02-09 1994-06-07 Ast Research, Inc. Control and information disk for disk recording system
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
US7149173B2 (en) * 2000-10-17 2006-12-12 Thales Medium for recording optically readable data, method for making same and optical system reproducing said data
FR2824905B1 (fr) * 2001-05-15 2003-08-29 Thomson Csf Gyrometre a fibre optique
US7587766B2 (en) * 2004-11-18 2009-09-08 Starz Entertainment Group Llc Flexible digital content licensing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1212692A (en) * 1914-03-06 1917-01-16 Albert Ruckgaber Speed-regulator for phonographs.
US3138669A (en) * 1961-06-06 1964-06-23 Rabinow Jacob Record player using light transducer and servo
US3391255A (en) * 1962-05-16 1968-07-02 Minnesota Mining & Mfg Transducing system
GB1413142A (en) * 1972-04-19 1975-11-05 Rca Corp Speed control system for video disc drives
FR2222718B1 (https=) * 1973-03-19 1977-02-11 Thomson Brandt

Also Published As

Publication number Publication date
DE3047880A1 (de) 1981-09-17
NL8006870A (nl) 1981-07-16
FR2472298A1 (fr) 1981-06-26
US4381556A (en) 1983-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse