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:
Apr. 04, 2017
Filed:
Jun. 30, 2014
Siemens Aktiengesellschaft, Munich, DE;
University of Maryland, College Park, MD (US);
Justinian Rosca, West Windsor, NJ (US);
Heiko Claussen, North Brunswick, NJ (US);
Radu Victor Balan, Rockville, MD (US);
Yenming Lai, College Park, MD (US);
Siemens Aktiengesellschaft, Munich, DE;
University of Maryland, College Park, MD (US);
Abstract
Systems and methods are provided to determine a subset of D microphones in a set of N microphones on a perimeter of a space to monitor a target location. The space is divided into L interference locations. An equation is solved to determine microphone weights for the N microphones by minimizing the maximum gain for signals related to the target location and interference locations, further optimized over an lpenalty by applying a Lagrange multiplier to an lnorm of the microphone weights in a manner that determines a set of D non-zero microphones weights and a set of (N-D) microphone weights that are zero or close to zero. Microphone weights are determined for at least 2 different frequencies.