Patent ID: 7894785
Filing Date: 2011-02-22
Classification: H03G

Abstract:
1. A receiver, comprising: a mixer configured to down-convert a radio frequency modulated signal to an intermediate frequency modulated signal; a programmable gain amplifier configured to receive and amplify the intermediate frequency modulated signal based on a programmable gain value associated therewith; a demodulator configured to receive and demodulate the amplified intermediate frequency modulated signal; and a control circuit configured to produce a gain programming control signal for dictating a gain of the programmable gain amplifier based on a level of the amplified intermediate frequency modulated signal at a beginning portion of a time slot, wherein the control circuit is configured to reset the gain of the programmable gain amplifier via the gain programming control signal to a maximum gain setting associated therewith at a beginning of the time slot, and incrementally decrease the gain of the programmable amplifier until the level of the amplified intermediate frequency modulated signal is less than a predetermined threshold value, and wherein the control circuit is further configured to maintain the gain of the programmable amplifier via the gain programming control signal at that level for a remaining portion of the time slot.