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:
Mar. 02, 2010
Filed:
Jul. 26, 2006
Bhiksha Ramakrishnan, Watertown, MA (US);
Bent Schmidt-nielsen, Lexington, MA (US);
Lorenzo Turicchia, Cambridge, MA (US);
Rahul Sarpeshkar, Arlington, MA (US);
Bhiksha Ramakrishnan, Watertown, MA (US);
Bent Schmidt-Nielsen, Lexington, MA (US);
Lorenzo Turicchia, Cambridge, MA (US);
Rahul Sarpeshkar, Arlington, MA (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A method and system processes a speech signal. A fast Fourier transform is performed on a speech signal to produce a speech signal having a plurality of frequency bands in a frequency domain. For each frequency bands, filter the speech signal in the frequency domain with a spatial broadband filter, compress the broadband filtered speech signal, filter the compressed speech signal with a spatial narrowband filter; and, expand the narrowband filtered signal to an expanded signal