Video tape editor

Details Video tape editor Video tape editor

G - Physics

11

B

352/10.41

G11B 27/02 (2006.01) G11B 27/028 (2006.01) G11B 27/029 (2006.01) H04N 5/78 (2006.01)

Patent

CA 1171168

38/SO1470 S81P158 ABSTRACT OF THE DISCLOSURE Insert and assemble editing of video signals are carried out using a VTR having helically scanning rotary record/playback heads. Following the recording of a first video signal in slant tracks on the tape, the tape is stopped at an edit point where recording of a second video signal is to commence. Then the tape is run reversely while control signals associated with the locations of the tracks are reproduced. These control signals are counted and the tape is stopped when a predetermined number of such signals have been counted. Thereafter the tape is advanced to a noiseless-still-picture position, based on a counted number of oscillations associated with rotation of the tape capstan, at which an acceptably noise- free picture is obtained, notwithstanding that the head scan of the rotary heads does not completely concide with the slant tracks when the tape is stopped. After this, the tape is run at normal speed, and when the tape reaches the edit point, the VTR begins to record the second signal, which is at that time in step with the pre- viously-recorded first video signal. -i-

386829

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