The decoding device design of IRIG-B format time code

IRIG-B format time code (the B-code) is widely used in various systems of the time synchronization as an international common time coding sequence. A decoding circuit is presented for decoding IRIG-B format time code which utilizes the method that takes single chip processor as core and combines peripheral control circuit with D/A converting circuit. This circuit decodes the temporal information of the year, month, day, hour, minute, second and transmits to the equipment located in different parts in the way to a serial port output in order to realize the time synchronization between various equipment and export normative second pulse information.