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. 21, 2000
Filed:
Oct. 08, 1997
Applicant:
Inventor:
Udo Gortz, Bochum, DE;
Assignee:
Nokia Mobile Phones, Ltd., Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L / ;
U.S. Cl.
CPC ...
704223 ; 704264 ;
Abstract
The invention describes one way of coding a speech signal without the elaborate searhing of a stochastic codebook. An 'ideal' Regular Pulse Excitation (RPE) is used as the starting point for the method. The five strongest RPE pulses are quantized with equal amplitude and differ by their sign. The other RPE pulses are set to zero. This method, which is simple and can be carried out quickly, provides the same speech quality as with considerably more elaborate closed-loop methods.