| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a signal multiplex transmission/reception module contriving simplification of circuit configuration and miniaturization of the module by using a CDMA (code division multiple access) system as a multiplexing/ demultiplexing system of a signal. <P>SOLUTION: A multiplex signal Y formed by multiplexing four channels of signals a1 to a4 is transmitted by performing spread spectrum of the signals a1 to a4 inputted from input/output terminals 4 in the respective bi-directional multipliers 1 and outputting them to a transmission line 3 via an output/input line 5. In addition, desired signals a1 to a4 are separated from the multiple signal Y and instantaneously outputted to the respective input/output terminals 4 by performing the despreading of the multiplex signal Y received via the transmission line 3 by inputting the multiplex signal Y in the respective bi- directional multipliers 1. <P>COPYRIGHT: (C)2004,JPO |
