Abstract: A time information repeating installation in a radio clock system, which receives advance notice information, distinguishes advance notice content by detecting means 9, sets a transmission start time by addition setting means 10 in accordance with the content, sets an additional period by change period setting means 11, and stores the content into transmission start time storage means 12. When the stored time agrees with the time of a main counter 8, transmission starts. Therefore, even when a sudden time change occurs, the repeating installation can perform transmission at the reception timing of a subsidiary device. The subsidiary device can effectively update time data for summer or daylight savings time.

Abstract: A time signal repeater, capable of selectively relaying standard time radio signals having different modulation frequencies and correcting the time based on the plurality of standard time radio signals without changing a radio correction clock side, including an antenna portion capable of receiving a standard time radio signal by a set resonance frequency, an oscillating circuit outputting a signal having a frequency of the received standard time radio signal in synchronization with the standard time radio signal received by the antenna portion, at least one frequency conversion circuit converting the frequency of the output signal of the oscillating circuit, a receiving circuit receiving as input the standard time radio signal received by the antenna portion and correcting a time of an internal clock according to a time code included in the received radio signal, a transmission circuit generating a time radio signal including a time code based on the internal clock based on the output signal of the oscillati

Abstract: A time signal repeater enabling a radio correction clock to receive a relayed radio signal without regard as to the position of arrangement and without complicated trouble, including a reception circuit for receiving a standard time radio signal and correcting an internal clock to a time according to the time code included in the received radio signal and a transmission circuit for generating and transmitting time radio signals which have different intensities and include time codes based on the internal clock at a plurality of predetermined times, and a time correction system using the same.