MULTI-PULSE TYPE CODING SYSTEM WITH CORRELATION CALCULATION BY BACKWARD-FILTERING OPERATION FOR MULTI-PULSE SEARCHING
Patent №
US 5,202,953
Granted
1993-04-13
Filed 1992
Owner
NEC CORPORATION
Lab
—
AI components
1
speech
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07823615
Speech signal encoding at a low bit rate is realized by decreasing the number of arithmetic operations required to determine LPC parameters in a backward processing unit. These parameters are determined and updated by filtering, rather than by impulse response. In this manner, it is not necessary to use previously-calculated parameters in updating.
AI classification
Speech1.00
Machine learning0.22
Natural language0.01
AI hardware0.00
Vision0.00
Knowledge representation0.00
Evolutionary computation0.00
Planning0.00
Ownership
NEC CORPORATION
assignment · 63140566
Assignors
TAGUCHI, TETSU
On an employer assignment, the assignors are typically the inventors.
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