| 摘要 |
An analog screen-out displays a video signal like a hand-painted picture on a screen. The circuit is used with a video signal processor 10 having a colour killer circuit for eliminating the colour signal from an applied video signal and a pickup, and comprises an art mode selector SW1 for determining the operation or non-operation of the screen art circuit, a plurality of delay elements 20 - 40, each for delaying the signal generated from the video signal processor by a 1H period, a switch 70 for selectively switching the signal a - d generated from the video signal processor 10 and the plurality of 1H delay elements 20 - 40 when an art mode is selected by the art mode selector SW1, and a control signal generator 60 for generating a control signal f,g by the logical combination of the signal for switching the pickup and the composite sync signal generated from the video signal processor 10 in order to control the switch 70. <IMAGE> |
