Patent Document ID: 9281907
Application ID: 13897719
Patent Flag: 1

Claim One:
1. A method for calibrating an I/O. receiver, comprising: receiving, from a tone calibration estimator, a first set of mismatch parameters indicating a mismatch between I and Q channels of the I/O. receiver, wherein the first set of mismatch parameters includes a total gain mismatch parameter and a total phase mismatch parameter, and wherein the tone calibration estimator is to inject test tones at frequencies within a test spectrum into the I/O. receiver; and estimating, by a polynomial calibration estimator, a second set of mismatch parameters from the first set of mismatch parameters using a polynomial model, wherein the second set of mismatch parameters includes a frequency-dependent gain mismatch parameter, a frequency-dependent phase mismatch parameter, and a frequency-independent phase mismatch parameter.