Patent ID: 7539474
Filing Date: 2009-05-26
Classification: H03C,H03D,H04B

Abstract:
1. An apparatus for down-converting an input signal, comprising: a first frequency down-conversion module that receives an input signal, wherein the first frequency down-conversion module down-converts the input signal according to a first control signal and outputs a first down-converted signal; a second frequency down-conversion module that receives the input signal, wherein the second frequency down-conversion module down-converts the input signal according to a second control signal and outputs a second down-converted signal; and a combining module that combines the second down-converted signal with the first down-converted signal and outputs a single channel down-converted signal; wherein the first frequency down-conversion module comprises a first switch and a first storage element, wherein the first switch is coupled to the first storage element at a first node and coupled to a first reference potential; and wherein the second frequency down-conversion module comprises a second switch and a second storage element, wherein the second switch is coupled to the second storage element at a second node and coupled to a second reference potential.