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:
May. 06, 2014
Filed:
Aug. 27, 2013
Autonetworks Technologies, Ltd., Yokkaichi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Daisuke Umehara, Kyoto, JP;
Masahiro Morikura, Kyoto, JP;
Toshiya Hisada, Osaka, JP;
Shinichi Ishiko, Yokkaichi, JP;
Satoshi Horihata, Yokkaichi, JP;
Autonetworks Technologies, Ltd., Mie, JP;
Sumitomo Wiring Systems, Ltd., Mie, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
For voltage values (observed noise sequence) in an electronic power line (communication medium) which are obtained at a predetermined interval, initial values of noise characteristics based on a statistic of the observed noise sequence itself are decided by a moment method (Sto S), the noise characteristics (state transition probabilities and state noise power) for maximization of the likelihood of the observed noise sequence are obtained from the initial values by MAP (Maximum A Posteriori) estimation using a Baum-Welch algorithm (Sto S), a state sequence is estimated from the obtained noise characteristics, and an impulsive noise at each time point is detected.