H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 17/00 (2006.01) G01R 27/28 (2006.01) G01R 31/28 (2006.01) H04N 7/10 (2006.01) H04N 7/16 (2006.01)
Patent
CA 2102404
ABSTRACT OF THE DISCLOSURE A cable television signal for example may be monitored and impairments determined and in many cases classified by grabbing at least portion of a transmitted frame of video information somewhere on the network to provide a video signal, performing a two dimensional Fourier transform on the video signal and analyzing the Fourier transform so obtained to determine the location of areas indicating above average occurrence of specific frequencies to provide an indication of an impairment.
Ward Rabab Kreidieh
Zhang Qin
Rowley C.a.
The University Of British Columbia
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