发明名称 MULTI-BAND TRANCEIVERS WITH REDUCED FREQUENCY SOURCES FOR DIGITAL TRANSMISSIONS
摘要 A system and method for using a dual band transceiver to transmit and receive in a first and second hand, while reducing the frequency sources (Fig. 2). By reducing the number of frequency sources needed to operate a dual band transceiver and using common transmitter and receiver intermediate frequencies, the invention also reduces the number of filters and other components needed for its operation. The oscillating signals from these two frequency sources (205, 210) are scaled, combined, mixed, and filtered, such that only two primary frequency sources are needed to operate the front-end and back-end of both the transmitter and receiver of this dual band transceiver.
申请公布号 WO03015300(A1) 申请公布日期 2003.02.20
申请号 WO2002US24693 申请日期 2002.08.05
申请人 MATSUSHITA MOBILE COMMUNICATIONS DEVELOPMENT CORPORATION, U.S. 发明人 PRATT, STEPHEN
分类号 H04B1/40;(IPC1-7):H04B1/40;H04B1/44;H04B1/38 主分类号 H04B1/40
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