| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable stable communication even under an environment noise circumstance. <P>SOLUTION: A radio communication device comprises a synchronous signal generator 3 that radiates a modulated synchronous signal of a predetermined frequency band, modulated with a reference synchronous signal. Each of radio communication terminals 1 and 2 receives the modulated synchronous signal, and generates a clock signal and a carrier wave using the synchronous signal, so as to transmit and receive only a signal sequence based on a packet, after modulating with the carrier wave. By this, as compared with the conventional case of transmitting by adding a clock signal to a transmission data, an occupied bandwidth becomes narrow, and as a result, the pass band width of a filter on the receiving side may be narrow, which makes an environment noise hard to enter. <P>COPYRIGHT: (C)2013,JPO&INPIT |
