| 摘要 |
PROBLEM TO BE SOLVED: To optionally move a contour (edge) of a video signal and to delay it in the unit of several n-sec by dynamically varying a delay in the video signal at a high speed. SOLUTION: Latches 121-12n of n-stage are connected in series with an input terminal 11. Respective outputs from the latches 121-12n are fed to a selector 15. The selector 15 selects any of the outputs of the latches 121-12n based on a control signal CTLa. A sampling clock CK is fed to a delay circuit 14. The delay circuit 14 delays a clock CK by a time being fine divisions of on clock period T. A selector 17 using a control signal CTLb to select a clock fed to a D/A converter 18. The D/A converter 18 receives a digital luminance signal selected by the selector 15 via a latch 16. An analog luminance signal is extracted at an output terminal 19 of the D/A converter 18.
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