Electronic time switch

An electronic time switch comprising

• a plurality of successive stages, each stage having one or more units and each unit including serially connected first and second registers operating to receive input data at different times and a switch connected to the output of each second register, the operation of said switch being controlled by a control signal;
• the units of a stage being formed as one or more groups thereof, the number of units in a stage other than the first stage being the same as the number of groups in a preceding stage;
• the switches in each group of a stage having a common connection point, the connection points of the group in a preceding stage being connected to the first registers in the units of a succeeding stage, which units correspond to the groups in said preceding stage;
• means for sequentially applying control signals having different switch connection times at predetermined time spacings to the switches in said stages;
• the first registers of the first stage sequentially storing sequentially applied data at a first time;
• means for applying a common frame pulse to the second registers of the first stage for storing the contents of respective first registers;
• the first registers of the second and succeeding stages sequentially storing data at a second time;
• and
• the second registers of the second and succeeding stages sequentially storing data at a third time which is synchronous with but different from the second time, thereby providing data, which has been stored at a predetermined time, at a different time.