Wireless communication system for adapting to frequency drift
摘要
A wireless communication system with one or more remote transceivers for transmitting a wireless data signal at an actual frequency that is different than the expected frequency and a base transceiver that can automatically adjust to receive the actual frequency. Each remote transceiver is adapted to initiate a wireless data signal at a selected time that is unique to that remote transceiver. The expected frequency is sequentially pre-determined in a pseudo-random sequence with each remote transceiver having a unique sequence. The base transceiver can respond to the remote transceiver at the actual frequency. Both the remote transceiver and the base transceiver can convert the wireless signals in a single step to baseband.
申请公布号
US5909640(A)
申请公布日期
1999.06.01
申请号
US19970944832
申请日期
1997.10.06
申请人
WHISPER COMMUNICATIONS, INC.
发明人
FARRER, LELAND M.;CHAN, JOSEPH S.;GARRY, JR., ROBERT F.;GLORIOSO, CHARLES A.;KRASNER, NORMAN F.