Patent ID: 8259888

Claim:
A method of processing signal data, the method comprising: generating a first clock signal and a second clock signal, the first clock signal and the second clock signal having an initial phase offset; adjusting the initial phase offset of the first clock signal and the second clock signal to establish a target phase difference between the first clock signal and the second clock signal; processing the signal data using the first clock signal and the second clock signal after the target phase difference between the first clock signal and the second clock signal has been established; measuring one or more current phase differences between the first clock signal and the second clock signal during the processing of the signal data; generating at least one phase control signal in dependence upon the one or more current measured phase differences between the first clock signal and the second clock signal during the processing of the signal data; adjusting a current phase offset of at least one of the first clock signal and the second clock signal in dependence upon the at least one phase control signal, such that the target phase difference between the first clock signal and the second clock signal is maintained during the processing of the signal data; and wherein the signal data is received signal data and at least one of the first clock signal and the second clock signal is aligned with a recovered clock signal recovered from the received signal data.