| 摘要 |
PROBLEM TO BE SOLVED: To obtain spread spectrum communications equipment which can perform spread spectrum communication with a simple constitution without using analog delaying devices nor analog multipliers. SOLUTION: Spread spectrum signals and delayed diffusion sequence codes are given to a transmitting signal sequence generating section 207, and the section 207 calculates not only ORs but also ANDs the spread spectrum signals and delayed diffusion sequence codes. Bits '1' and '0' are given to the section 207, and the section 207 generates a transmitting signal sequence by serially outputting '1', an OR signal, an AND signal, and '0' for every frame. A data sequence extracting section 210 obtains a data sequence from received signals, by extracting the second and third bits of each frame in response to the start of the frames in the received signals. |
