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. 18, 2014
Filed:
Dec. 11, 2012
Amazon Technologies, Inc., Reno, NV (US);
Nathan Oliver John Whitehead, Sunnyvale, CA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
Adaptive de-noise filtering of signals is disclosed. A signal may be identified and a noise level corresponding to noise associated with the signal may be determined. The noise level may be determined by isolating the noise from the signal and generating a metric indicative of the noise level. A threshold noise level may be identified. A cutoff frequency may be determined based at least in part on the noise level and the threshold noise level, and, optionally, based on one or more characteristics associated with a low pass filter. The signal may be low pass filtered based at least in part on the cutoff frequency to generate a filtered signal. Additional signals may be identified and filtered in accordance with respective corresponding cutoff frequencies such that noise levels associated with the additional filtered signals and the filtered signal may be substantially the same and at or below the threshold noise level.