Patent ID: 9432062
Filing Date: 2016-08-30
CPC Classification: H03M,H04B

Claim Text:
1. A method comprising: receiving a first error signal representative of a first noise including a first quantization noise carried by a quadrature signal; receiving a second error signal representative of a second noise including a second quantization noise carried by an in-phase signal; determining one or more least significant bits that cancel at least a portion of the first noise and the second noise represented by the first error signal and the second error signal, wherein the one or more least significant bits are determined, by at least two parallel sigma delta modulators, from at least the first error signal and the second error signal, wherein the two parallel sigma delta modulators determine, in a rectangular domain, an amount needed to cancel the first noise and the second noise, and convert, into a polar domain, the amount to the one or more least significant bits; and combining, in the polar domain, the one or more least significant bits with an amplitude signal and a phase signal to cancel the portion of the first noise and the second noise.