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. 31, 1998
Filed:
Apr. 18, 1994
Applicant:
Inventors:
Kumar Swaminathan, Gaithersburg, MD (US);
Kalyan Ganesan, Germantown, MD (US);
Prabhat K Gupta, Germantown, MD (US);
Assignee:
Hughes Electronics, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L / ;
U.S. Cl.
CPC ...
395-215 ; 395-217 ; 395-219 ; 395-232 ;
Abstract
A bit rate Codebook Excited Linear Predictor (CELP) communication system which includes a transmitter that organizes a signal containing speech into frames of 40 millisecond duration, and classifies each frame as one of three modes: voiced and stationary, unvoiced or transient, and background noise.