Patent №
US 4,589,131
Granted
1986-05-13
Filed 1982
Owner
GRETAG AKTIENGESELLSCHAFT A SWISS CONFEDERATION COMPANY
Lab
—
AI components
2
ml · speech
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06421883
Speech signal is decided voiced or unvoiced by a sequence of unilateral decisions: a first test decides "unvoiced" if standardized energy E.sub.s is below a threshold, or "ambiguous" if above the threshold whereby a second test decides "unvoiced" if the number of zero crossings ZC is above a threshold, and ambiguous if below the threshold. Up to six criteria may be so tested as ambiguous before a "voiced" decision is made.
AI classification
Ownership
GRETAG AKTIENGESELLSCHAFT A SWISS CONFEDERATION COMPANY
assignment · 45120134
Assignors
HORVATH, STEPHAN, WU, YUNG-SHAIN
On an employer assignment, the assignors are typically the inventors.