| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a mobil equipment that is usable both indoors and outdoors small-sized and inexpensive and to perform higher speed data communication by using correlators and detectors which are used for RAKE receiving as correlators detectors for code multiplexing when RAKE receiving is not performed, switching the RAKE receiving and code multiplex receiving and performing it. SOLUTION: When a spread modulation signal S SS is inputted, plural correlators 21-1 to 21-N perform inverse spread of the signal S SS, the output of each correlator 21-1 to 21-N is inputted to a corresponding detector 22-1 to 22-N and a detection output is inputted to a changeover switch 23. In such a case, the switch 23 outputs the detection output as it is to a 2nd multiplexer 14-X at the time of code multiple reception. Each 2nd multiplexer 14-X multiplexes the detection output, produces a code multiplex signal and outputs it to a 3rd multiplexer 15. Thus, a code multiplex signal outputted from all of the 2nd multiplexers 14-1 to 14-M is further multiplexed and is outputted as a receiving signal S R2.</p> |
