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. 24, 2012
Filed:
Jan. 31, 2007
Asif Iqbal Mohammad, Rolla, MO (US);
Jack W. Stokes, Iii, North Bend, WA (US);
John C. Platt, Bellevue, WA (US);
Arungunram C. Surendran, Sammamish, WA (US);
Asif Iqbal Mohammad, Rolla, MO (US);
Jack W. Stokes, III, North Bend, WA (US);
John C. Platt, Bellevue, WA (US);
Arungunram C. Surendran, Sammamish, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Signal detectors are described herein. By way of example, a system for detecting signals can include a microphone signal detector, a loudspeaker signal detector, a signal discriminator and a decision component. When the microphone signal detector detects the presence of a microphone signal, the loudspeaker signal detector detects the presence of a loudspeaker signal and the signal discriminator determines that near-end speech dominates loudspeaker echo, the decision component can confirm the presence of doubletalk. When the microphone signal detector detects the presence of a microphone signal and the signal discriminator determines that near-end speech dominates loudspeaker echo, the decision component confirms the presence of near-end signal.