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:
Nov. 16, 2004
Filed:
Jan. 11, 2001
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Noise filtering ( ) of a signal (x) is effected by estimating ( ) a type of noise in the signal (x) and enabling ( ) one of at least two noise filters ( ), the enabled noise filter ( ) being a most suitable filter for the estimated type of noise. An approximation of the noise (z) in the signal (x) is obtained by computing ( ) a difference between the signal (x) and a noise-filtered ( ) version of the signal (x). A kurtosis of the noise is used as a metric for estimating the type of noise. If the estimated type of noise is long-tailed noise, a median filter ( ) is enabled to filter the signal. If the estimated type of noise is Gaussian noise or contaminated Gaussian noise, a spatio-temporal filter ( ) is enabled to filter the signal.