Patent ID: 7684775
Filing Date: 2010-03-23
Classification: H04B

Abstract:
1. A method for operating a radio frequency RF receiver, comprising: changing a component block from a first component block state to a second component block state that is expected to induce a predetermined DC offset in a signal passing along a signal pathway by changing at least two different type components in the block each in a manner that contributes to the predetermined DC offset, wherein changing the component block from the first to the second component block state comprises at least one of changing bias of a mixer, changing bias of a filter, turning a low noise amplifier on or off and changing at least one of bias or gain of a low noise amplifier; automatically responsive to changing from the first to the second component block state, changing a compensating state of an adaptive filter block from a first compensating state to a second compensating state to compensate for the predetermined DC offset; and changing the state of the adaptive filter block back to the first compensating state.