| 摘要 |
PURPOSE:To increase the transfer efficiency of an output image and the dynamic range, by switching each switch of a multiplexer selectively with the signal obtained through the logical combination of each pulse in binary coded number. CONSTITUTION:The clock pulse 18 obtained from the clock pulse generating circuit and the pulse 19 designating the period of the signal charge transferred from the P-N junction to the cgarge transfer element, are applied to the logic level conversion circuit 20. The decoder 21 converts the binary number into ternary number. In the 3-channel multiplexer 22, either one of SW1, SW2, SW3 is switched according to each voltage of LS-L at L level of the line shift pulse which transfers the signal charge preset to the readout section, H level LS-H, and designation pulse TR-H for the period transferred from the P-N junction to the CCD for the signal charge. The waveform obtained is introduced to the waveform shaping circuit 24 and output from the output terminal 26. |
