| 摘要 |
PROBLEM TO BE SOLVED: To speed up processing by increasing the number of data to be sent while reducing the multiplexing of data, i.e., by increasing the number of multiplexed bits without sharping increasing an error ratio, by converting transmitting information into timing information and multiplexing the converted information. SOLUTION: The system is constituted of a synchronization means 11 for synchronizing two data groups with a spread code, an interval period spreading means 12 for periodically turning on/off the spread code, a time control means 13 for determining the output timing of the spread code by the value of 'parallel transmission data B', a modulation means 14 for executing the BPSK modulation of the time controlled spread code, a spreading means 15 for spreading 'parallel transmission data A' of the other data group, a modulation means 16 for DQPSK modulating the spread data, and an addition means 17 for adding two modulation data. In the constitution, the number of multiplexed bits can be increased by converting information to be multiplexed into multiplexing timing and much information can be quickly transmitted. |
