| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulse signal communication system capable of realizing e.g., a full duplex two-way communication by reducing the effect of signals other than a pulse signal transmitted from a communication opposite party onto pulse signal communication. SOLUTION: A pulse processing circuit 28 of a transmission apparatus converts a transmission signal into a pulse signal whose amplitude changes within a prescribed phase range for each period of a transmission reference signal, and the transmission apparatus transmits the pulse signal to a space transmission path 16. A reception apparatus receives the pulse signal, and a restoration circuit 68 converts the pulse signal into the original transmission signal. An oscillation circuit 50, a synchronous control circuit 74, and a second phase shift circuit 70 generate a reception control signal to particularize the prescribed phase range of the transmission reference signal of the transmission apparatus on the basis of the transmission signal received from the transmission apparatus. A switch circuit 72 controls the reception of the pulse signal on the basis of the reception control signal. COPYRIGHT: (C)2004,JPO&NCIPI
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