| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce power consumption by simplifying the configuration of a transmitter/receiver and processing steps in radio communication. <P>SOLUTION: This method is provided with a transmission step S1 for generating transmitting side spread codes at a chip rate corresponding to an analog signal, and transmitting the transmitting side spread codes; a receiving step S2 for synchronizing the transmitting side spread code contained in a received signal with a receiving side spread code, and obtaining a data signal from a chip rate of the receiving side spread signal. In the transmission step S1, two kinds of processes such as frequency modulation and spectrum spreading are simultaneously performed by processing for generating the transmitting side spread code at a chip rate corresponding to the data signal. Also, in the reception step S2, two kinds of processes such as spectrum despreading and frequency demodulation are simultaneously performed by synchronizing transmitting side spread code contained in the received signal with the receiving side spread code. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
