Reduced noise electric endoscope system

摘要

An electronic endoscope system includes an electronic endoscope, and a video processor. The video processor transmits a clock signal to the electronic endoscope in order to generate a driving signal for driving a CCD provided therein. The clock signal transmitted from the video processor has a sinusoidal waveform, and the electronic endoscope has a circuit which generates the driving signal based on the clock signal transmitted from the video processor. The driving signal is a periodical signal having a rectangular waveform. Further, a signal transmission line, which transmits the driving signal from the circuit to the CCD, is inserted into and wound around a ferrite material.