Patent ID: 7983642
Filing Date: 2011-07-19
Classification: H04B

Abstract:
1. A method for reducing signal distortion and saturation in a receiver, the method comprising: selectively decreasing a maximum allowable gain of a first gain stage and a second gain stage to a predetermined lower blocker limit; monitoring a signal power at the output of said second gain stage, and a gain of a third gain stage; increasing the maximum allowable gain of said first gain stage and said second gain stage to a predetermined upper limit if no blocker is detected, wherein said lower blocker limit is below said upper limit; detecting a blocker as being present when the gain of said third gain stage is above a predetermined programmable upper threshold and a combined gain of said first gain stage and said second gain stage is below a predetermined programmable lower threshold for a predetermined period; and selectively decreasing the maximum allowable gain of said first gain stage and said second gain stage to said lower blocker limit if the blocker is detected as present.