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:
Oct. 11, 2011
Filed:
Jun. 29, 2007
Applicants:
Phillip A. Hetherington, Port Moody, CA;
Shreyas A. Paranjpe, Vancouver, CA;
Inventors:
Phillip A. Hetherington, Port Moody, CA;
Shreyas A. Paranjpe, Vancouver, CA;
Assignee:
QNX Software Systems Co., Ottawa, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speech enhancement system improves the perceptual quality of an aural signal. A receiver detects and receives an unvoiced signal, a fully voiced signal, or a mixed voice remote signal. A coherence processor identifies the similarities or differences between a local signal and the remote signal. A cancellation processor or controller dampens reflected signals that may be part of the local signal.