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:
Nov. 12, 2019
Filed:
Jul. 01, 2013
Speech Technology & Applied Research Corporation, Bedford, MA (US);
Richard S. Goldhor, Belmont, MA (US);
Richard Goldhor, Belmont, MA (US);
Keith Gilbert, Framingham, MA (US);
Joel MacAuslan, Nashua, NH (US);
Karen Payton, Natick, MA (US);
Speech Technology & Applied Research Corporation, Bedford, MA (US);
Abstract
In environments (such as acoustic and bioelectrical environments) characterized by multiple simultaneous sources, effective blind source separation from sensor response mixtures becomes difficult as the number of sources increases—especially when the true number of sources is both unknown and changing over time. However, in some environments, non-sensor information can provide useful hypotheses for some sources. Embodiments of the present invention provide an adaptive filtering architecture for validating such source hypotheses, extracting an estimated representation of source signals corresponding to valid hypotheses, and improving the separation of the remaining 'hidden' source signals from the sensor response mixtures.