Frequency multiplexed convolver communication system

Claim 1

Apparatus for recovering data from a first signal having a carrier frequency and at least one of a plurality of predetermined orthogonal modulations thereon comprising: first means for generating a plurality of spaced apart first frequencies, means for mixing said first signal with each of said plurality of spaced apart first frequencies to provide a plurality of second signals at a plurality of predetermined spaced apart second frequencies, means for combining said plurality of second signals to form a third signal, a convolver having a first and second input for convolving signals and having an output terminal, means for coupling said third signal to said first signal input of said convolver, means for generating a plurality of fourth signals at at least two of said plurality of predetermined spaced apart second frequencies, second means for generating said plurality of predetermined orthogonal modulations, means for modulating each of said fourth signals with respective ones of said plurality of orthogonal modulations to provide a plurality of fifth signals, means for combining said plurality of fifth signals to form a sixth signal, means for coupling said sixth signal to said second input of said convolver to provide a seventh signal at said output terminal indicative of the convolution of said third and sixth signals, means for dividing the power of said seventh signal to form a plurality of eighth signals, and means for filtering each plurality of eighth signals with a respective frequency bandpass to provide a plurality of ninth signals representative of the convolution of reference signals having respective orthogonal modulations with said first signal.

Claim 12

A method for recovering data from a first signal having a carrier frequency and at least one of a plurality of predetermined orthogonal modulations thereon comprising the steps of generating a plurality of spaced apart first frequencies, mixing said first signal with each of said plurality of spaced apart first frequencies to provide a plurality of second signals at a plurality of predetermined spaced apart second frequencies, combining said plurality of said second signals to form a third signal, generating a plurality of fourth signals at at least two of said plurality of predetermined spaced apart second frequencies, generating said plurality of predetermined orthogonal modulations, modulating each of said fourth signals with respective ones of said plurality of orthogonal modulation to provide a plurality of fifth signals, combining said plurality of fifth signals to form a sixth signal, convolving said third and said sixth signal to provide a seventh signal indicative of the convolution of said third and sixth signals, dividing the power of said seventh signal to form a plurality of eighth signals, and filtering each plurality of eighth signals with a respective frequency bandpass to provide a plurality of ninth signals representative of the convolution of reference signals having respective orthogonal modulations with said first signal.

Claim 13

A method for recovering data from a first signal having a carrier frequency and at least one of a plurality of predetermined orthogonal modulations thereon comprising the steps of generating a plurality of spaced apart first frequencies, mixing said first signal with each of said plurality of spaced apart first frequencies to provide a plurality of second signals at a plurality of predetermined spaced apart second frequencies, combining said plurality of said second signals to form a third signal, generating a plurality of fourth signals at at least two of said plurality of predetermined spaced apart second frequencies, generating said plurality of predetermined orthogonal modulations, modulating each of said fourth signals with respective ones of said plurality of orthogonal modulation to provide a plurality of fifth signals, combining said plurality of fifth signals to form a sixth signal, convolving said third and said sixth signal to provide a seventh signal indicative of the convolution of said third and sixth signals, dividing the power of said seventh signal to form a plurality of eighth signals, and filtering each plurality of eighth signals with a respective frequency bandpass to provide a plurality of ninth signals representative of the convolution of reference signals having respective orthogonal modulations with said first signal.