Patent ID: 7400341
Filing Date: 2008-07-15
Classification: H04N

Abstract:
1. An electronic endoscope apparatus comprising: an electronic endoscope equipped with an image pickup device; a main unit which is connected with the electronic endoscope and includes a processor unit; a common power/signal line which connects the electronic endoscope with the main unit; a power supply circuit which is installed in the main unit and supplies power to the electronic endoscope via the common power/signal line; a scope-side waveform superimposing circuit which superimposes a video signal obtained by the image pickup device on power transmitted through the common power/signal line and superimposes an information signal about the electronic endoscope on a predetermined blanking period in the video signal; a processor-side separating circuit which separates the video signal and the information signal about the electronic endoscope superimposed on the common power/signal line; and a signal processing circuit which performs various types of processing on the video signal based on the information signal about the electronic endoscope obtained from the processor-side separating circuit.