In a compressed mode, a spread spectrum communication device interleaves bit units across multiple frames using an interleaver, reduces the spreading factor using a framing/spreading unit, outputs the compressed mode frames at a predetermined compressed mode frame timing, and increases the average transmission...http://www.google.com.tw/patents/US7286518?utm_source=gb-gplus-share專利 US7286518 - Spread spectrum communication device and spread spectrum communication method
