Wire communication device, wire communication apparatus, wire communications method, and wire communications system

摘要

The wire communications device 30 comprises a primary modulating portion 32, a PN code generating portion 34, a spread spectrum modulating portion 36, and a communications interface portion 38. The primary modulating portion 32 performs primary modulation of the transmission data to produces a primary modulated signal. The PN code generating portion 34 generates a PN code in synchronization with a synchronizing signal that has a predetermined period. The spread spectrum modulating portion 36 performs spread spectrum modulation of the primary modulated signal using the PN code, thereby producing a spread spectrum modulated signal. The communications interface portion 38 sends the synchronizing signal and spread spectrum modulated signal to the wire communications channel 3. Accordingly, the receiver can produce a spread spectrum code for reverse spread spectrum demodulation with respect to the synchronizing signal received from the wire communications channel 3. As a result, a wire communications device, wire communications apparatus, wire communications method and wire communications system can be provided to increase the transmission speed of data when spread spectrum communications systems are applied to wire communications channels.