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. 09, 2013
Filed:
Dec. 16, 2005
Keith Braho, Murrysville, PA (US);
Roger Graham Byford, Apollo, PA (US);
Thomas S. Kerr, Murrysville, PA (US);
Amro El-jaroudi, Pittsburgh, PA (US);
Keith Braho, Murrysville, PA (US);
Roger Graham Byford, Apollo, PA (US);
Thomas S. Kerr, Murrysville, PA (US);
Amro El-Jaroudi, Pittsburgh, PA (US);
Vocollect, Inc., Pittsburgh, PA (US);
Abstract
A wireless device for use with speech recognition applications comprises a frame generator for generating successive frames from digitized original audio signals, the frames representing portions of the digitized audio signals. An autocorrelation circuit generates a set of coefficients for each frame, the coefficient set being reflective of spectral characteristics of the audio signal portion represented by the frame. In one embodiment, the autocorrelation coefficients may be used to predict the original audio signal to be subtracted from the original audio signals and to generate residual signals A Bluetooth transceiver is configured for transmitting the set of coefficients and/or residual signals as data to another device, which utilizes the coefficients for speech applications.