Patent №
US 4,492,824
Granted
1985-01-08
Filed 1983
Owner
BELL TELEPHONE LABORATORIES, INCORPORATED, A CORP. OF NY
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06522106
There is disclosed a precision linear comparator for a speakerphone circuit having two rectifying constant voltage nodes for separately summing two groups of signals derived from a speakerphone transmit channel and receive channel and supplying at an output terminal a signal representative of the difference between two unblocked summed signals. Each node blocks its summed signal if the signal is not representative of a true voice signal. A null signal is supplied at the output terminal during the absence of unblocked summed signals.
AI classification
Ownership
BELL TELEPHONE LABORATORIES, INCORPORATED, A CORP. OF NY
assignment · 41640915
Assignors
BELL, STEVE W., EMBREE, MILTON L.
On an employer assignment, the assignors are typically the inventors.