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:
Nov. 22, 2005
Filed:
Oct. 31, 2000
Applicants:
Jari Mäkinen, Tampere, FI;
Hannu Mikkola, Tampere, FI;
Janne Vainio, Lempäälä, FI;
Jani Rotola-pukkila, Tampere, FI;
Inventors:
Jari Mäkinen, Tampere, FI;
Hannu Mikkola, Tampere, FI;
Janne Vainio, Lempäälä, FI;
Jani Rotola-Pukkila, Tampere, FI;
Assignee:
Nokia Mobile Phones Ltd., Espoo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L019/04 ;
U.S. Cl.
CPC ...
Abstract
A method and system for concealing errors in one or more bad frames in a speech sequence as part of an encoded bit stream received in a decoder. When the speech sequence is voiced, the LTP-parameters in the bad frames are replaced by the corresponding parameters in the last frame. When the speech sequence is unvoiced, the LTP-parameters in the bad frames are replaced by values calculated based on the LTP history along with an adaptively-limited random term.