Patent ID: 6941121
Filing Date: 2005-09-06
Classification: H03D,H04B

Abstract:
1. A method of operating a receiver having a plurality of gain settings including at least a first gain setting and a second gain setting, the method comprising: during a first phase, determining values of a plurality of system response parameters characterizing a time-dependent system response to a unit step change in the DC offset, each system response parameter being associated with a different elapsed time; during a second phase, making a plurality of first measurements of a system output in response to a change in the gain setting from the first gain setting to the second gain setting, wherein the first measurements are made at times corresponding to the elapsed times associated with the system response parameters; and computing the difference between a first DC offset corresponding to the first gain setting and a second DC offset corresponding to the second gain setting from the values of the plurality of system response parameters and the plurality of first measurements.