Patent ID: 7266345

Claim:
A system for receiving broad-band signals in a software defined radio (SDR) terminal, the system comprising: a signal processing unit for receiving the broad-band signal and generating a switch control signal, wherein the switch control signal is responsive to the broad-band signal frequency; a first frequency pass unit for converting an analog radio frequency (RF) signal into a direct current (DC) level signal, and for removing from said converted first analog RF signal a first DC component; a second frequency pass unit for removing a second DC component from the analog RF signal; a first switching means for connecting the signal processing unit to the first frequency pass unit or the second frequency pass unit responsive to the switch control signal; an analog to digital signal converter (A/D converter) for converting the analog RF signal into a digital RF signal; and a second switching means for connecting the first frequency pass unit or the second frequency pass unit to the A/D converter responsive to the switch control signal.