| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which: in communication of the conventional spectrum diffusion communication method, only one-bit data can be transmitted for a single transmission of a spectrum diffusion code. SOLUTION: A transmission device 10 includes: a plurality of diffusion code generating units 12 and 13 for generating different diffusion codes; a transmission timing deciding unit 14 for deciding a timing for generating a diffusion code so that a value available by counting, in a one-chip unit time, a time lag between the time point of presence of different diffusion codes comes to be a numerical value of transmission data; a code synthesizing unit 15 for generating a transmission signal waveform available by synthesizing the diffusion codes generated by the diffusion code generating units; and a power line connection unit 17 for transmitting the transmission signal waveform having been modulated with a carrier wave to a power line 51. A reception device 20, after acquiring the transmission signal waveform from the power line and then demodulating and storing, reproduces the data of transmission signal waveform that has been stored, for detecting synchronous time points of different diffusion codes. A time lag at the synchronous time points is counted in one-chip unit time for acquiring reception data. COPYRIGHT: (C)2012,JPO&INPIT |
