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:
Sep. 16, 2008
Filed:
Oct. 03, 2002
Applicants:
Wai C. Chu, San Jose, CA (US);
Khosrow Lashkari, Fremont, CA (US);
Inventors:
Wai C. Chu, San Jose, CA (US);
Khosrow Lashkari, Fremont, CA (US);
Assignee:
NTT Docomo, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for energy based, non-uniform time-scale compression of audio signals includes receiving a frame of data corresponding to an input audio signal and segmenting the data into a plurality of segments. The method further includes estimating a value related to energy of the frame of data, determining a peak energy estimate for the frame, determining an energy threshold based on the peak energy estimate of the frame and comparing the value related to energy of the frame of the data with the energy threshold to control time-scale compression of the audio data.