ELECTRONIC ENDOSCOPE SYSTEM WITH ELECTRONIC ENDOSCOPE DEVICE FOR OUTPUTTING DIGITAL VIDEO SIGNAL AND DECODER FOR RECEIVING DIGITAL VIDEO SIGNAL

摘要

PROBLEM TO BE SOLVED: To display an image with superior image quality on a monitor, and at the same time to selectively send a plurality of digital video signals to the monitor. SOLUTION: In a video process circuit 13 in a processor, a digital signal separated for each color of R, G, and B read from frame memories 31R, 31G, and 31B is converted to luminance and color difference Y, Cb, and Cr digital component video signals multiplied by a matrix circuit 35 and a multiplexer 36A, and at the same time is converted to R, G, and B digital component video signals by a multiplexer 36B. The video-blanking period of the digital component video signal is set to a high-impedance state, and a switch circuit SW is changed based on a signal regarding the format of the video signal inserted in a video decoder.