Patent ID: 8514991
Filing Date: 2013-08-20
Classification: H03G,H04B

Abstract:
1. A receiver for receiving a communication channel modulated on one or more carrier frequencies, said receiver comprising: a gain adjustable radio frequency amplifier coupled to an antenna and adapted to amplify signals within a band of frequencies which includes the one or more carrier frequencies; a wideband signal power measurement circuit adapted to characterize signal strength of signals having frequencies in spectral proximity to the one or more carrier frequencies; a frequency adjustable synthesizer adapted to generate a mixing signal for down-converting a received signal including the communication channel; a baseband signal power measurement circuit adapted to measure power of a filtered baseband version of the received signal and to perform baseband signal measurements of channels in spectral proximity to the one or more carrier frequencies; and spectrum scanning control logic adapted to adjust the frequency of said synthesizer and adapted to adjust the gain of said radio frequency amplifier both adjustments being based on: (3) an output from said baseband signal power measurement circuit relating the baseband signal measurements of channels in spectral proximity to the one or more carrier frequencies.