Jonathan M Peck

US Patent:

20130294219, Nov 7, 2013

Filed:

Jan 11, 2013

Appl. No.:

13/739088

Inventors:

Jonathan Morgan Peck - Liverpool NY, US

Assignee:

SRC, INC. - North Syracuse NY

International Classification:

H04W 72/04

US Classification:

370210

Abstract:

The present invention is directed to a method for use in a cognitive radio. A Fourier transform of a time domain signal is performed to obtain a series of frequency domain samples covering substantially the entire predetermined RF spectrum, the time domain signal corresponding to the RF waveform, each frequency domain sample being characterized by a predetermined waveform characteristic. The predetermined waveform characteristic of each frequency domain sample is evaluated in each subcarrier block to obtain a subcarrier block activity level for each subcarrier block. A subcarrier block is selected when its subcarrier block activity level is greater than a predetermined threshold.

US Patent:

20150146809, May 28, 2015

Filed:

Dec 8, 2014

Appl. No.:

14/563579

Inventors:

- North Syracuse NY, US
Jonathan M. Peck - Liverpool NY, US

Assignee:

SRC, INC. - North Syracuse NY

International Classification:

H04L 5/00
H04L 27/26

US Classification:

375260

Abstract:

The present invention is directed to a cognitive radio device. The device includes a spectrum sensing portion configured to identify idle subcarrier blocks corresponding to non-contiguous channels within the plurality of predetermined channels, a mapping portion configured to encode a transmission message signal into a series of transmit frequency domain samples and map each of the transmit frequency domain samples into an idle subcarrier block, the mapping portion being configured to map each of the transmit frequency domain samples into an idle subcarrier block on a symbol-by-symbol basis, a transmit Fourier transformer configured to transform the series of transmit frequency domain samples into a time domain signal corresponding to a transmit RF waveform, and a transmitter portion configured to upconvert the time domain signal and transmit the transmit RF waveform.