TWOODIMENSIONAL INFORMATION READING DEVICE

摘要

PURPOSE:To realize the operation among the obtained corresponding signals which are continuous every fixed period, by extracting the information charge stored in the two-dimensional way in the form of the signal charge with every row and with the mutual relation. CONSTITUTION:The charge transferred into vertical transfer channel 21 is transferred into the depletion layer of the horizontal transfer channel which is formed within the semiconductor substrate under transfer electrodes a1-an, and horizontal transfer pulses H1 and H2 featuring the different polarities are applied to the channel alternately. This transferred charge is then transferred up to charge detection part 214 via the pulse applied to gate electrode 211. Then the charge is detected in the form of the voltage value through load resistance 213 to then detect signals E1 and E2, and signal E2 is applied to voltage-current converter 23. The output of converter 23 is applied to the 2nd possessing transfer electrodes b1-bn with the alternate application of pulses H1 and H2, and furthermore the pulse to be applied to gate electrode 217 is applied to charge converter 218. And the output of converter 218 is detected through load resistance 220 to deliver signal E2. Thus the operation is given between the corresponding and continuous signals E1 and E2 and with every fixed period.