Patent ID: 8406719

Claim:
A receiver comprising: a first amplifier configured to amplify, based on a first gain, a radio frequency signal to generate a first amplified signal, wherein the radio frequency signal is received by the receiver on a first channel; a second amplifier configured to generate, based on the first amplified signal and a second gain, a second amplified signal; an output circuit configured to generate a baseband signal based on the second amplified signal; a first detection circuit configured to compare the baseband signal to (i) a first threshold in response to the first gain being at a first level, and (ii) a second threshold in response to the first gain being at a second level, wherein the first detection circuit is configured to generate a first detection signal in response to the comparison; and a controller configured to, in response to the first detection signal, (i) adjust the second gain, or (ii) change the receiver from the first channel.