| 摘要 |
<p>PROBLEM TO BE SOLVED: To heighten a data transfer speed and to easily execute demodulation concerning spread spectrum communication equipment. SOLUTION: The transmitting device of spread spectrum communication equipment is provided with a convertion circuit 6 for converting serial data into parallel data with a prescribed bit width, a gray code full adder 1, a multiplier 3 for multiplying one of differential outputs from the full adder 1 by a first diffusion code string, a selector 7 for forming the second diffusion code string based on the output of the converting circuit 6, a multiplier 4 for multiplying the other differential output from the full adder 1 by the output of the selector 7 and a modulating circuit 5 for orthogonally modulating outputs from the multipliers 3 and 4. A receiving device is provided with a SAW matched filter 9 for outputting the two strings of and a plurality of prescribed relative outputs and the multiplier 10 for multiplying the relative output which is outputted from the matched filter 9.</p> |
