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:
Dec. 04, 2012
Filed:
May. 22, 2009
Applicants:
Phillip A. Hetherington, Port Moody, CA;
Shreyas Paranjpe, Vancouver, CA;
Xueman LI, Burnaby, CA;
Inventors:
Assignee:
QNX Software Systems Limited, Kanata, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/02 (2006.01); G10L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speech enhancement system enhances transitions between speech and non-speech segments. The system includes a background noise estimator that approximates the magnitude of a background noise of an input signal that includes a speech and a non-speech segment. A slave processor is programmed to perform the specialized task of modifying a spectral tilt of the input signal to match a plurality of expected spectral shapes selected by a Codec.