Patent №
US 4,935,952
Granted
1990-06-19
Filed 1988
Owner
A SYSTEMS, INC., A FLORIDA CORP.
+1 more
Lab
—
AI components
1
speech
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07218638
A method and apparatus for detecting a fire-alarm acoustic signal includes an energy discriminator to segregate the desired acoustic tone from background noise. Digital circuitry responds to the active output of the energy discriminaton to dial into a telephone network and execute verification operations before repeating the cycle while the acoustic tone of the fire alarm continues to be detected.
AI classification
Ownership
A SYSTEMS, INC., A FLORIDA CORP.
assignment · 49240152
B WARNED, INC.
assignment · 51230105
Assignors
DUTRA, JONATHAN A.
On an employer assignment, the assignors are typically the inventors.