Method and apparatus for separating and individually...

Details Method and apparatus for separating and individually... Method and apparatus for separating and individually...

H - Electricity

04

N

352/18.3

H04N 9/89 (2006.01) H04N 9/896 (2006.01)

Patent

CA 1281813

ABSTRACT OF THE DISCLOSURE Velocity errors in a video signal are sampled at scan line rate and are averaged over a selected plurality of frames to enhance the repetitive velocity errors while cancelling the random velocity errors. The resulting separated repetitive velocity errors then are subtracted from the initial combined velocity errors to provide sep- arated random velocity errors. A repetitive error interlace technique is used to generate an improved repetitive error frequency control signal, while a second order correction technique provides a corresponding random error frequency control signal. The two frequency control signals are combined and the combined signal is used to provide compensa- tion for the initial velocity errors.

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