FR2373086A1 - Appareil de formation magnetique d'images - Google Patents

Appareil de formation magnetique d'images

Info

Publication number
FR2373086A1
FR2373086A1 FR7736430A FR7736430A FR2373086A1 FR 2373086 A1 FR2373086 A1 FR 2373086A1 FR 7736430 A FR7736430 A FR 7736430A FR 7736430 A FR7736430 A FR 7736430A FR 2373086 A1 FR2373086 A1 FR 2373086A1
Authority
FR
France
Prior art keywords
frequency
training device
image training
magnetic image
multiplied
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.)
Granted
Application number
FR7736430A
Other languages
English (en)
French (fr)
Other versions
FR2373086B1 (Direct
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of FR2373086A1 publication Critical patent/FR2373086A1/fr
Application granted granted Critical
Publication of FR2373086B1 publication Critical patent/FR2373086B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/06—Angle-modulation recording or reproducing
    • 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
    • G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Control Of Electric Motors In General (AREA)
FR7736430A 1976-12-03 1977-12-02 Appareil de formation magnetique d'images Granted FR2373086A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/747,284 US4115786A (en) 1976-12-03 1976-12-03 Constant wavelength magnetic recording

Publications (2)

Publication Number Publication Date
FR2373086A1 true FR2373086A1 (fr) 1978-06-30
FR2373086B1 FR2373086B1 (Direct) 1983-03-18

Family

ID=25004441

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736430A Granted FR2373086A1 (fr) 1976-12-03 1977-12-02 Appareil de formation magnetique d'images

Country Status (3)

Country Link
US (1) US4115786A (Direct)
CA (1) CA1082803A (Direct)
FR (1) FR2373086A1 (Direct)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512303A1 (fr) * 1981-08-27 1983-03-04 Rca Corp Tourne-videodisque ayant un generateur auxiliaire de synchronisation verticale

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118444A (en) * 1981-01-14 1982-07-23 Toshiba Corp Processor of transmitted signal
TWI383599B (zh) * 2008-06-02 2013-01-21 Univ Nat Taiwan 雙二位元式收發器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465349A (en) * 1965-10-22 1969-09-02 Potter Instrument Co Inc Incremental stepper for tape transports
US3582812A (en) * 1968-01-22 1971-06-01 Iwatsu Electric Co Ltd Frequency dividing and multiplying circuits using a sampling technique
US3749833A (en) * 1972-02-14 1973-07-31 Pelorex Corp Facsimile transmission system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441687A (en) * 1964-04-01 1969-04-29 Victor Company Of Japan Channel mixing system for multiple rotating heads
GB1060147A (en) * 1964-08-04 1967-03-01 Rank Bush Murphy Ltd Transducer head switching arrangements
US3499997A (en) * 1965-03-19 1970-03-10 Victor Company Of Japan System for controlling the levels of magnetically recorded and reproduced signals in a video tape recorder
US4004205A (en) * 1973-12-06 1977-01-18 Hitachi Electronics, Ltd. Hybrid servo control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465349A (en) * 1965-10-22 1969-09-02 Potter Instrument Co Inc Incremental stepper for tape transports
US3582812A (en) * 1968-01-22 1971-06-01 Iwatsu Electric Co Ltd Frequency dividing and multiplying circuits using a sampling technique
US3749833A (en) * 1972-02-14 1973-07-31 Pelorex Corp Facsimile transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512303A1 (fr) * 1981-08-27 1983-03-04 Rca Corp Tourne-videodisque ayant un generateur auxiliaire de synchronisation verticale

Also Published As

Publication number Publication date
FR2373086B1 (Direct) 1983-03-18
CA1082803A (en) 1980-07-29
US4115786A (en) 1978-09-19

Similar Documents

Publication Publication Date Title
FR2358071A1 (fr) Appareil de reproduction de signaux video
FR2396323A1 (fr) Dispositif a miroir tournant, notamment pour appareil de reprographie
CH513701A (fr) Dispositif rotatif pour exécuter sur une bande continue en déplacement continu une ligne de fentes courtes s'étendant en travers de cette bande
FR2321137A1 (fr) Dispositif d'affichage a cristal liquide dispose derriere une fenetre
OA05772A (fr) Procédé et dispositif pour déterminer le point de coincement d'une colonne dans un forage.
FR2345742A1 (fr) Dispositif pour l'affichage numerique de donnees de prises de vues photographiques
FR2374617A1 (fr) Dispositif pour indiquer une direction moteur horizontale et un ou plusieurs secteurs angulaires autour de cette direction
PT66033A (fr) Procede et dispositif pour le controle de la marche d'une turbine hydraulique
BE859845A (fr) Dispositif reflecteur pour la concentration d'un flux d'ondes
FR2383447A1 (fr) Appareil-indicateur du sens de rotation
FR2373086A1 (fr) Appareil de formation magnetique d'images
FR2313262A1 (fr) Dispositif pour le montage et le demontage d'une helice immergee
BE852177A (fr) Appareil et procedes pour l'extrusion continue d'une piece a travailler
OA06148A (fr) Dispositif et procédé pour déterminer la vitesse d'ondes acoustiques dans des formations terrestres.
FR2337589A1 (fr) Dispositif d'excitation d'ondes notamment d'ondes ultra-sonores incluant une lentille
CH452664A (fr) Procédé et dispositif pour régler le rapport entre l'amplitude et la fréquence d'une tension appliquée à un moteur électrique à induction
FR2563025B1 (fr) Dispositif pour l'obtention de traces continus sur l'ecran d'une console de visualisation commandee par un processeur graphique
FR2279109A1 (fr) Procede et dispositif pour mesurer la vitesse de giration d'un navire
FR2331008A1 (fr) Dispositif pour determiner la valeur d'un couple
BE854120A (fr) Dispositif pour le calcul et l'affichage du prix d'un service
FR2329992A1 (fr) Procede et dispositif de determination et d'affichage de la position angulaire du balourd d'une machine d'equilibrage
FR2336701A1 (fr) Appareil pour l'agrandissement de microfilms comportant un dispositif pour regler automatiquement la quantite de lumiere
BE850918A (fr) Dispositif pour separer des pieces finies dans une finisseuse vibratoire
BE793785A (fr) Procede et dispositif de determination du balourd rotatif d'une piece tournante
BE778655A (fr) Dispositif pour afficher une image, formee par des images partielles, sur l'ecran d'un appareil de visualisation de donnees

Legal Events

Date Code Title Description
ST Notification of lapse