Patent ID: 7184724

Claim:
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 each of said first single sideband mixer and said second single sideband mixer comprise: a first phase shifter accepting an signal input thereto and splitting said input signal into at least two input signal components, wherein said at least two input signal components have a predetermined non-zero phase differential there between; a second phase shifter accepting a carrier signal input thereto and splitting said carrier signal into at least two carrier signal components, wherein said at least two carrier signal components have a predetermined non-zero phase differential there between; a first mixer accepting a first input signal component of said at least two input signal components and a first carrier signal component of said at least two carrier signal components thereby providing a first mixed signal and a first image signal; a second mixer accepting a second input signal component of said at least two input signal components and a second carrier signal component of said at least two carrier signal components thereby 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.