CONTROL LOGIC CIRCUIT FOR ANALOG CHARGE-TRANSFER MEMORY SYSTEMS

The operation of analog memory systems utilizing semiconductor charge-transfer devices is controlled by a control logic circuit including clock control logic, recirculation control logic and mode selector control logic. The clock control logic includes a first switch for selecting the repetition rate of bursts of clock pulses which read the analog input information signal into the memory unit of the system and a second switch for selecting the number of clock pulses in the burst. The recirculation control logic includes a switch for obtaining recirculation of the stored information and selecting the number of recirculations between successive read-ins of new analog information. The mode selector control logic determines the mode (read-in or recirculate) of operation of the memory system.