AUTOMATIC TRACKING CIRCUIT IN VIDEO TAPE RECORDER

AUTOMATIC TRACKING CIRCUIT IN VIDEO TAPE RECORDER

A first (2) and second (3) image heads having different azimuth angles reproduce the radio freq. signal recorded on the video tape. The width of the head is greater than the one of the video track. The first head (2) is placed on upper side of reference line (4) which length is as much as the track...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHIN YONG-HOO, LEE SEUNG-NAM
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A first (2) and second (3) image heads having different azimuth angles reproduce the radio freq. signal recorded on the video tape. The width of the head is greater than the one of the video track. The first head (2) is placed on upper side of reference line (4) which length is as much as the track width (9) and the second head (3) on the reference line. The magnitude and error voltage (Eu) of the video signal is detected by a differential amplifier (17) and envelope line detector (14) to control the phase of the capstan motor.