Patent ID: 8565681

Claim:
A method for adaptive signal alignment in a communications receiver, comprising: applying a first phase shift to a first signal of interest to generate a synchronized signal; tapping or splitting the synchronized signal to generate a first phase reference signal; tapping or splitting a second signal of interest to generate a second phase reference signal; adjusting a value of the first phase shift that is applied to the first signal of interest such that the synchronized signal is driven to be either about 0 degrees in-phase or 180 degrees out-of-phase with the second signal of interest, wherein a process of adjusting the value of the first phase shift that is applied comprises: applying a second phase shift to the first phase reference signal to generate a calibrating phase shifted signal, mixing or multiplying the calibrating phase shifted signal with the second phase reference signal to generate a first mixer output, integrating or accumulating the first mixer output to generate a first integrator output, configuring the value of the first phase shift based upon the first integrator output.