Patent ID: 6288578
Filing Date: 2001-09-11
Classification: G11C,H03K,H04N

Abstract:
A signal processor connected to a charge-coupled device, said signal processor having:a plurality of delay lines connected to a node on a signal line extending from said charge-coupled device to an output terminal of said signal processor, said delay lines having individually different delay times;a selector connected to said plurality of delay lines for selecting an optimum one of said plurality of delay lines, so that an effective signal time period of a time delay free inputted signal into an input terminal of a selected one of said delay lines is superimposed with a field through time period of a delayed signal reciprocally transmitted through said selected one of said delay lines and returned to said input terminal of said selected one of said delay lines; anda signal generator connected to said charge-coupled device for generating both one of plural driving frequencies to be transmitted to said charge-coupled device and a selecting control signal to be transmitted to said selector, so that said selector is operated to select an optimum one of said plurality of delay lines in accordance with said received selecting control signal.