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:
Jun. 05, 2012
Filed:
Aug. 26, 2009
Tobias Wolff, Neu-Ulm, DE;
Markus Buck, Biberach, DE;
Gerhard Schmidt, Ulm, DE;
Olga González Valbuena, Carrion de los Condes, ES;
Günther Wirsching, Eischstätt, DE;
Tobias Wolff, Neu-Ulm, DE;
Markus Buck, Biberach, DE;
Gerhard Schmidt, Ulm, DE;
Olga González Valbuena, Carrion de los Condes, ES;
Günther Wirsching, Eischstätt, DE;
Nuance Communications, Inc., Burlington, MA (US);
Abstract
A method of locating a sound source based on sound received at an array of microphones comprises the steps of determining a correlation function of signals provided by microphones of the array and establishing a direction in which the sound source is located based on at least one eigenvector of a matrix having matrix elements which are determined based on the correlation function. The correlation function has first and second frequency components associated with a first and second frequency band, respectively. The first frequency component is determined based on signals from microphones having a first distance, and the second frequency component is determined based on signals from microphones having a second distance different from the first distance.