Patent ID: 8111786
Filing Date: 2012-02-07
Classification: H04L

Abstract:
1. A signal converter for converting an analog inphase signal and an analog quadrature phase signal into a digital baseband inphase signal and a digital baseband quadrature phase signal, wherein the analog inphase signal and the analog quadrature phase signal are orthogonal to each other and are carried in a predetermined intermediate frequency, and the digital baseband inphase signal and the digital baseband quadrature phase signal are carried in zero frequency, comprising: a signal combiner combining frequency component(s) of the analog inphase signal and frequency component(s) of the analog quadrature phase signal to obtain an analog combined signal; an analog to digital converter converting the analog combined signal to a digital combined signal; and a signal separator separating frequency components of the digital combined signal by frequency translating and filtering the digital combined signal to obtain the digital baseband inphase signal and the digital baseband quadrature phase signal.