Patent №
US 9,704,501
Granted
2017-07-11
Filed 2014
Owner
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Lab
—
AI components
2
speech · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
14354881
The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.
AI classification
Ownership
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
assignment · 327720049
Assignors
LEE, MI-SUK
On an employer assignment, the assignors are typically the inventors.