Patent ID: 7099688

Claim:
A radio receiver for receiving signals of at least two different communication standards, including a narrow band signal having a narrow bandwidth and a wide band signal having a wide bandwidth, comprising: a shared radio frequency (RF) front-end, said shared RF front-end receiving said wide band signal during at least one period of operation and downconverting, in a single downconversion, said wide band signal directly to baseband, said shared RF front-end receiving said narrow band signal during at least another period of operation and downconverting, in a single downconversion, said narrow band signal to a low intermediate frequency (Low-IF) no more than a few times the bandwidth of the narrow band signal; a baseband processing chain coupled to said shared RF front-end and operating on said downconverted wide band signal to extract desired data from said downconverted wide band signal; and a Low-IF processing chain, separate from the baseband processing chain, coupled to said shared RF front-end in parallel to said baseband processing chain and operating on said downconverted narrow band signal to extract desired data from said downconverted narrow band signal.