Patent ID: 8363704

Claim:
A method of transmitting information between first and second communications devices and through a bandwidth-limited communications channel, the method comprising: providing, at the first communications device, an input data signal with a binary data rate greater than twice a Nyquist rate of the bandwidth-limited communications channel; providing, at the first communications device, a first kernel having a pulse contained within the bandwidth-limited communications channel; convolving, at the first communications device, the input data signal with the first kernel for providing a convolved signal, the convolved signal being used to modulate another signal within the bandwidth-limited communications channel; sending, from the first communications device to the second communications device, the convolved signal through the bandwidth-limited communications channel; receiving the convolved signal at the second communications device; deconvolving the received convolved signal with respect to the first kernel for providing a deconvolved signal, the deconvolving comprising deconvolving with a second deconvolving kernel, the second deconvolving kernel combining a function of the first kernel and a digital matched filter; and outputting the deconvolved signal at the second communications device.