Patent ID: 7403761
Filing Date: 2008-07-22
Classification: H03D

Abstract:
1. A video bandwidth signal frequency converter system comprising: an input signal interface accepting a video bandwidth signal at a first frequency; an output signal interface passing said video bandwidth signal at a desired frequency; a first single sideband mixer coupled to said input signal interface and said output signal interface, wherein said single sideband mixer translates said video bandwidth signal from said first frequency to a different frequency; and a second single sideband mixer coupled to said input signal interface and said output signal interface, wherein said first single sideband mixer is disposed between said input signal interface and said second single sideband mixer, and wherein said second single sideband mixer translates said video bandwidth signal from said different frequency to said desired frequency; wherein said first single sideband mixer comprises: a first mixer accepting a first input signal component of said input signal provided to said first single sideband mixer and providing a first mixed signal and a first image signal; a second mixer accepting a second input signal component of said input signal provided to said first single sideband mixer and providing a second mixed signal and a second image signal; and a combiner accepting said first mixed signal, said first image signal, said second mixed signal, and said second image signal, wherein said first mixed signal and said second mixed signal are substantially constructively combined by said combiner and said first image signal and said second image signal are substantially destructively combined by said combiner.