Patent ID: 7865159
Filing Date: 2011-01-04
Classification: H04B

Abstract:
1. In a radio frequency communication station, a method of calibrating gain and noise of a signal, the method comprising: determining whether the calibrating of the gain and the noise is performed based at least in part on a timestamp; determining a period of a frame corresponding to a frame rate of a communication carried by the signal; selecting a period of time for a test sequence shorter than the period of the frame, over which an interruption of a signal source does not substantially interrupt the communication; switching an input to an amplifier between the signal source and a predetermined input load within the period of time; measuring a difference between an output of the amplifier corresponding to a first switch state corresponding to signals received by the amplifier from the signal source and a second switch state corresponding to the amplifier connected to the predetermined input load; determining an output of the amplifier corresponding to the first and second states, whereby the difference at the output of the amplifier, resulting from the switching the input of the amplifier, yields a calibrated measurement; and storing the calibrated measurement with the timestamp.