It is more than seven years since the advent of the electronic still video (SV) cameraY)It gave a pretty big impact to the conventional film and camera-relating industry at first The market of still video cameras, however, did not grow as rapidly as expected. So far, only a commercial market has been created, where instantness and ability to display on TV screen and to transmit by telephone cable are considered to be important. For a new consumer market, not only above mentioned advantages, but also better picture quality, smaller camera size, and lower price are reqired. Those requirements have been fullfilled step by step by improving CCD and signal processing circuit, and production technology. Here, we tried further improvement of picture quality of still video camera by developing a digital still video camera.