| 摘要 |
PURPOSE:To eliminate queuing time required for a call, by causing a transmitter to transmit the same call signal for two frames out of transmission signal frames and by causing a receiver to turn on the power source for every other frame. CONSTITUTION:Call signal A for a desired receiver is inserted to continuous frame numbers 3 and 4 of the transmission signal and is transmitted from the transmitter. Since power is supplied to the receiver of the car telephone set or the like synchronously with every other frame of the receiving signal, the receiver receives the receiving signal of frame number 3 or 4. Consequently, in this system, power consumption during the use is reduced to half, and the receiver is set to the state where it can receive the signal without delay for transmission of the call signal. |
