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:
Aug. 22, 2000
Filed:
Sep. 09, 1998
Ho-chong Park, Sungnam, KR;
Abstract
This invention relates to a method for improving performance of voice coder. A target signal is calculated for a window, and the optimal candidate codebooks and optimal candidate codebook gains from the target signal for the window are searched for all codebook indices and all codebook optimal gains. Target signals for a second subframe are then calculated from the target signal for the window, optimal candidate codebooks and optimal candidate codebook gains for the first subframe. The optimal candidate codebooks and optimal candidate codebook gains for the second subframe from the target signal for the second subframe are searched and the optimal candidate codebooks and optimal candidate codebook gains for the first subframe are searched. The optimal codebook and optimal codebook gain for two subframes are selected from the respective target signal for the window, optimal candidate gains and all possible quantized gains for the first subframe and optimal candidate codebooks and optimal candidate codebook gains for the second subframe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile