Patent ID: 7227916
Filing Date: 2007-06-05
Classification: H03G

Abstract:
1. An apparatus for receiving and processing a modulated signal, the apparatus comprising: an interface for interfacing with a host processor; and an automatic gain control state machine coupled to the interface for receiving control information indicative of a modulation protocol, the automatic gain control state machine receiving a signal strength of a signal, comparing the signal strength to a threshold value that defines an end point of a range of signal strength, and controlling gain of the signal according to either a first signal transfer function if the signal is less than the threshold value or a second signal transfer function if the signal is greater than the threshold value, the automatic gain control state machine controlling gain of the signal over a plurality of ranges of the signal characteristic according to a gain control function which is continuous within each of the plurality of ranges and modified to be non-continuous at an edge of each of the plurality of ranges.