Patent №
US 4,390,747
Granted
1983-06-28
Filed 1980
Owner
HITACHI, LTD.
Lab
—
AI components
3
nlp · vision · speech
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06191294
A speech analyzer for extracting spectrum information and pitch information from natural speech wherein an accuracy of pitch extraction is enhanced by sampling pitch at a sampling frequency which is higher than a sampling frequency for analyzing the spectrum information.
AI classification
Natural language1.00
Speech1.00
Vision0.82
Planning0.02
Evolutionary computation0.00
Machine learning0.00
AI hardware0.00
Knowledge representation0.00
Ownership
HITACHI, LTD.
assignment · 38190940
Assignors
SAMPEI TOHRU, ASADA AKIHIRO, OHTA YOSHIHIRO, IWASAKI SYUNJI
On an employer assignment, the assignors are typically the inventors.
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