Dynamic magnetic information storage or retrieval – Record editing
Patent
1980-10-20
1982-10-19
Faber, Alan
Dynamic magnetic information storage or retrieval
Record editing
369 4, 358 22, 358182, H04N 576, G11B 2702
Patent
active
043553320
ABSTRACT:
A video tape editing control system is provided which is capable of controlling one or more source video tape recorders and a record video tape recorder so that video information from a first source video tape recorder may be recorded on the video tape in the record video tape recorder until a selected edit point is reached, at which point the video information from the first source video tape recorder is replaced by different video information from the same or from a different source video tape recorder. In the system of the invention, a dissolve is simulated by causing the video signals of the first video information to decrease during a predetermined number of frames until the edit point is reached without introducing the second video information to the record video tape recorder until the edit point is reached, and then by terminating the first video information at the edit point and by introducing only the second video information to the record video tape recorder after the edit point has been reached, and increasing the amplitude of the video signals of the second video information from a minimum value at the edit point to normal value throughout a predetermined number of frames after the edit point.
REFERENCES:
patent: 3673324 (1972-06-01), Ito
patent: 3721757 (1970-03-01), Ettlinger
patent: 3735038 (1973-05-01), Loper
patent: 4040098 (1977-08-01), Beeson
Television Broadcasting, by H. E. Ennes, .COPYRGT.1973, by Howard W. Sams and Co., pp. 541-543, 313, 314.
Beecher Keith D.
Convergence Corporation
Faber Alan
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