Patent ID: 8022781

Claim:
A redundancy system for a co-channel telecommunications system, the redundancy system comprising: at least a first modulator and a second modulator, the first modulator and the second modulator each comprising: a symbol mapper coupled to a parallel bit signal, the symbol mapper comprising a symbol timing clock and configured to route each of a plurality of parallel bits received through the parallel bit signal to a plurality of significant bit signals; and a plurality of significant bit signal multiplexers coupled with the plurality of significant bit signals, each of the significant bit signal multiplexers comprising a first input, a second input, and an output, the output of each of the significant bit signal multiplexers configured to correspond with either the first input or the second input; and the redundancy system further comprising a transmit symbol timing circuit coupled with the symbol timing clock in the symbol mapper of the first modulator and the symbol timing clock in the symbol mapper of the second modulator; wherein the plurality of significant bit signal multiplexers of the first modulator and of the second modulator are coupled together through a switching circuit configured to switch the correspondence of the output of each of the plurality of significant bit signal multiplexers from the first input to the second input in response to a redundancy switching signal.