VTR Circuit arrangement for recording index signal

Details VTR Circuit arrangement for recording index signal VTR Circuit arrangement for recording index signal

1983-12-01

1986-02-18

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 18, 360 722, G11B 503, G11B 602

Patent

active

045716439

ABSTRACT:
In a video tape recorder of a helical scan type, a low frequency index signal and a high frequency signal are simultaneously applied to a full erase head (FE) with the high frequency signal acting as a bias prior to the recording of a video program. After the index signal has been recorded, the application of the high frequency signal is continued to erase a prerecorded material. The high frequency biasing prevents the index signal from interfering with the video signal during playback.

REFERENCES:
patent: 4005481 (1977-01-01), Lackner
DD-Buch SCHOLZ, Christian: Magnetbandspeichertechnik, Berlin 1969, p. 19.

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