Patent ID: 6829003
Filing Date: 2004-12-07
Classification: H04N

Abstract:
A sampling pulse generator utilized in an electronic endoscope which comprises an imaging device, comprising:a sampling circuit that samples image signals obtained by said image capturing device; a driving-pulse generating processor that generates driving pulses for said imaging device; a clock-pulse generator that cyclically generates clock pulses; a shift counter that comprises a predetermined number of output terminals and that cyclically counts said clock pulses within said predetermined number, wherein count numbers have one-to-one correspondence with said output terminals and a signal is only output to a terminal corresponding to a current count number; a first switch group that comprises switches connected to each of said output terminals; a second switch group that comprises switches connected to each of said output terminals; and a switch-setting processor that sets on-off states of said switches in said first and second switch groups; wherein said driving-pulse generating processor generates said driving pulses by using signals from said output terminals of said shift counter and at least two types of sample pulses that control said sampling circuit are generated by using signals from said first and second switch groups of which said on-off states are set by said switch setting processor.