Patent Document ID: 20130243061
Application ID: 13887186
Patent Flag: 0

Claim One:
1. A computer-implemented method for estimating a DC scaling of a signal path between an I/Q modulator of a transmitter and a demodulator of a receiver, the method comprising: receive a first response signal that has been captured from the I/Q demodulator in response to a transmitter supplying a zero signal as input to the I/Q modulator; receive a second response signal that has been captured from the demodulator in response to the transmitter supplying a constant signal as input to the I/Q modulator, wherein the constant signal equals a non-zero complex constant; averaging the first response signal to obtain a first average and averaging the second response signal to obtain a second average; and computing the DC scaling based on a difference value and the non-zero complex constant, wherein the difference value is a difference between the second average and the first average.