The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Dec. 05, 2012
Harris Corporation, Melbourne, FL (US);
James A. Norris, Fairport, NY (US);
Brian J. Taylor, Webster, NY (US);
William L. Tyler, Rochester, NY (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A communications device includes a demodulator configured to demodulate a received communications signal into complex time domain samples. A processor is coupled to the demodulator and configured to determine the variance over time domain magnitude samples, perform a complex Fast Fourier Transform (cFFT) on the complex time domain samples as magnitude and phase to obtain frequency domain samples and determine the variance over the frequency domain samples. A comparator compares a variance ratio of the time domain magnitude samples and the frequency domain samples with a threshold to determine if a RF interferer is present, indicative that the communications channel is busy.