FR2367396A1 - EQUIPMENT FOR REPRODUCING IMAGES FROM AN ELECTROMECHANICAL TRANSDUCER - Google Patents

EQUIPMENT FOR REPRODUCING IMAGES FROM AN ELECTROMECHANICAL TRANSDUCER

Info

Publication number
FR2367396A1
FR2367396A1 FR7730107A FR7730107A FR2367396A1 FR 2367396 A1 FR2367396 A1 FR 2367396A1 FR 7730107 A FR7730107 A FR 7730107A FR 7730107 A FR7730107 A FR 7730107A FR 2367396 A1 FR2367396 A1 FR 2367396A1
Authority
FR
France
Prior art keywords
division ratio
information carrier
divider
reproduction
carrier
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.)
Withdrawn
Application number
FR7730107A
Other languages
French (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2367396A1 publication Critical patent/FR2367396A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Control Of Velocity Or Acceleration (AREA)

Abstract

Appareil de reproduction de signaux de télévision enregistrés sur un porteur d'information dans des pistes obliques adjacentes, chaque piste contenant au moins une moitie d'image, cet appareil comprenant un transducteur tournant pour balayer les pistes du porteur d'information entraîné à une vitesse prédéterminée pour une reproduction normale dynamique, la vitesse de rotation du transducteur étant déterminée par un asservissement dans lequel, à titre de signal de consigne, on introduit un signal d'un oscillateur de référence divisé par un diviseur de fréquence pour obtenir une fréquence de consigne établie par le rapport de division du montage, remarquable en ce que le rapport de division du diviseur peut être commuté et, lorsque l'appareil reproduit à partir du porteur d'information immobile statique, le rapport de division du diviseur est au rapport de division utilisé lors d'une reproduction normale, ce que le nombre de lignes d'une piste du porteur d'information destiné à une reproduction en statique est à celui du porteur d'information destiné à une reproduction en dynamique. Application aux magnétoscopes.Apparatus for reproducing television signals recorded on an information carrier in adjacent oblique tracks, each track containing at least one half of an image, this apparatus comprising a rotating transducer for scanning the tracks of the driven information carrier at a speed predetermined for a normal dynamic reproduction, the speed of rotation of the transducer being determined by a servo-control in which, as a reference signal, a signal from a reference oscillator divided by a frequency divider is introduced to obtain a reference frequency established by the assembly division ratio, remarkable in that the division ratio of the divider can be switched, and when the apparatus reproduces from the static stationary information carrier, the division ratio of the divider is at the division ratio used in normal reproduction, that the number of lines of a track of the carrier of information intended for repro static duction is that of the information carrier intended for dynamic reproduction. Application to video recorders.

FR7730107A 1976-10-08 1977-10-06 EQUIPMENT FOR REPRODUCING IMAGES FROM AN ELECTROMECHANICAL TRANSDUCER Withdrawn FR2367396A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT749376A ATA749376A (en) 1976-10-08 1976-10-08 PLAYBACK DEVICE

Publications (1)

Publication Number Publication Date
FR2367396A1 true FR2367396A1 (en) 1978-05-05

Family

ID=3596575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730107A Withdrawn FR2367396A1 (en) 1976-10-08 1977-10-06 EQUIPMENT FOR REPRODUCING IMAGES FROM AN ELECTROMECHANICAL TRANSDUCER

Country Status (9)

Country Link
JP (1) JPS5347224A (en)
AT (1) ATA749376A (en)
AU (1) AU2947077A (en)
BE (1) BE859450A (en)
DE (1) DE2741892A1 (en)
ES (1) ES462968A1 (en)
FR (1) FR2367396A1 (en)
GB (1) GB1544057A (en)
IT (1) IT1085445B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168479A (en) * 1980-05-28 1981-12-24 Mitsubishi Electric Corp Magnetic picture recorder and reproducer
JPS5780881A (en) * 1980-11-07 1982-05-20 Matsushita Electric Ind Co Ltd Rotary head type magnetic recording and reproducing device

Also Published As

Publication number Publication date
AU2947077A (en) 1979-04-12
BE859450A (en) 1978-04-06
ATA749376A (en) 1977-12-15
ES462968A1 (en) 1978-06-16
GB1544057A (en) 1979-04-11
JPS5347224A (en) 1978-04-27
IT1085445B (en) 1985-05-28
DE2741892A1 (en) 1978-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse