发明名称 MOBILE WIRELESS COMMUNICATIONS DEVICE HAVING LOW IF RECEIVERCIRCUITRY THAT ADAPTS TO RADIO ENVIRONMENT
摘要 A mobile wireless communications device, system and associated method includes a housing and circuit board that includes radio frequency (RF) circuitry and processor operative with each other. The RF circuitry includes a low-IF receiver circuit that is operative for maintaining an interferer signal at a same frequency side as a wanted signal relative to a local oscillator frequency setting, creating an interferer image signal, and filtering the image signal as substantially baseband frequency.
申请公布号 CA2588357(A1) 申请公布日期 2007.09.04
申请号 CA20072588357 申请日期 2007.05.08
申请人 RESEARCH IN MOTION LIMITED 发明人 KRAVETS, OLEKSIY
分类号 H04B1/16;H04B1/26;H04Q7/32 主分类号 H04B1/16
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