| 摘要 |
<p>PROBLEM TO BE SOLVED: To minimize current consumption and to simplify the configuration of a receiver so as to reduce the manufacturing and development cost in the case of inversely converting data that are spread-spectrum-processed. SOLUTION: The data receiver that receives a spread signal generated by spread spectrum processing and applies inverse spread to the spread signal so as to extract an original signal, is provided with an analog system matched filter consisting of a sampling means 7 that samples the spread signal, a storage means 10 that stores spread signal replica data, a multiplier means 8 that multiplies sampling data by the spread signal replica data, and an adder means 9 that sums data obtained from the multiplier means 8, to configure an inverse spread circuit. The inverse spread circuit 4 consists of the analog system matched filter to much simplify the circuit configuration and to minimize the current consumption.</p> |
