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:
Jan. 31, 2017
Filed:
Feb. 20, 2015
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventor:
Xiaoxue Li, Sunnyvale, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2013.01); G10L 21/0208 (2013.01);
U.S. Cl.
CPC ...
G10L 21/0208 (2013.01);
Abstract
Features are disclosed for estimating reverberation an audio signal without prior knowledge of the sound captured in the audio signal and without prior knowledge of the environment in which the sound was captured. This reverberation estimation may be referred to as 'blind estimation.' The reverberation may be blindly estimated using autocorrelation of the sound intensity of the signal with respect to time. The blind estimation can be used to decide whether or not to mitigate the effects of reverberation in the signal prior to performing subsequent processes, such as automatic speech recognition.