TIME SYNCHRONIZING SYSTEM

摘要

PURPOSE:To hold the time signal of a time generation apparatus always accurately without requiring hands in the setting of time, by correcting a clock circuit for outputting a time signal by the time signal of a broadcasting radio wave. CONSTITUTION:A receiving circuit 1 forms a time signal from a received radio wave and a detection circuit 2 detects the time from the time signal to generate a time setting signal 13. A clock circuit 3 automatically corrects the time signal generated itself in synchronous relation to the time setting signal. An operation order circuit 5 brings the circuit 1 and the circuit 2 to an operated or stopped state for a predetermined time on the basis of the time signal 15 from the circuit 3. The circuit 5 brings the circuit 1 and the circuit 2 to an operated state at a predetermined time before predetermined time on the basis of the time signal 15 and subsequently takes the time synchronism of the time signal from the circuit 3 on the basis of the time setting signal 13. By this method, the time signal of a time generation apparatus is held always accurately.