A digital wireless communication system operates between a first unit and a second unit. The received digitally encoded signal is sampled to produce a first sampled digital signal. A first bank of match filters with each match filter having a different frequency range is used to pass the first sampled...http://www.google.com.tw/patents/US5491726?utm_source=gb-gplus-share專利 US5491726 - Method and apparatus to determine the frequency and time slot position in a digital wireless communication session
