System for editing commercial messages from recorded television

Dynamic magnetic information storage or retrieval – Record editing

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Details

360 13, 358908, H04N 5782, G11B 2708

Patent

active

046022970

ABSTRACT:
A system for producing an editing control signal for a video tape recorder at the beginning of one or more television commercial messages and which continues for the duration of the commercial messages. The system incorporates a detector circuit for automatically detecting each transition in a received television signal between the program itself and the commercial messages and for producing a control pulse indicating such transition. The video tape recorder receives a television signal, after the television signal has been delayed a predetermined time interval to permit a decision to be made as to whether or not a portion of the television signal is to be deleted and the duration of the deletion. Only when a first control pulse from the detector circuit is followed by a second or more control pulses within a predetermined time interval is the commercial portion of the television signal deleted, and the deletion occurs precisely from the start of the first commercial in a group and continues to the end of the last commercial in the group. The system is also capable of recording simultaneously from two different television channels at the same time, while viewing a third channel, and of recording pre-recorded information from one tape to another.

REFERENCES:
patent: 4167704 (1979-09-01), Sato et al.
patent: 4261020 (1981-04-01), Beeson et al.
patent: 4314285 (1982-02-01), Bonner et al.
patent: 4319286 (1982-03-01), Hanpachern
patent: 4395740 (1983-07-01), Yuen et al.
patent: 4430676 (1984-02-01), Johnson

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