| 摘要 |
PURPOSE:To transmit various common messages to a specific receiver device group without being attended with complicated collation circuit by using a common call signal and another call signal selecting further a common call receiver group depending on the content of a message signal transmitted succeedingly. CONSTITUTION:In transmitting message information common to a selective call receiver group belonging to the frame No.1, e.g., stock share information, the common call signal calling a specific receiver group as an address signal and a selection signal selecting the receiver group called in common depending on the message signal transmitted succeedingly are stored in a signal format, which is transmitted to the frame No.1. Further, a signal SC is a synchronizing signal. As to the common call signal, the 1st bit is an identification flag and a [0] indicating an address signal is inserted. Succeedingly, a selection bit 7 of the common message information representing the content of the common message transmitted next is transmitted to the 2nd bit - 21st bit, a parity bit is transmitted to the 22nd - 31st bit, and an even parity bit is transmitted respectively to the 32nd bit. |
