Patent №
US 5,771,297
Granted
1998-06-23
Filed 1995
Owner
MOTOROLA, INC., A CORP. OF DE
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08514546
An electronic audio device, such as a radio having an audio loudspeaker is described, as well as a method of operation of such a device. The device has an audio stage (6) having an audio output for providing an audio output signal, an acoustic transducer (12) coupled to the audio output for outputting an acoustic signal and a microphone element (13) acoustically coupled to the acoustic transducer to provide a feedback signal representative of the output of the acoustic transducer. A comparison circuit (15) compares parameters of the audio output signal and parameters of the feedback signal; and a control circuit (16, 24, 50) responsive to the comparison circuit controls the audio stage when a parameter of the feedback signal differs from that parameter of the audio output signal by a predetermined amount.
AI classification
Ownership
MOTOROLA, INC., A CORP. OF DE
assignment · 76140256
Assignors
RICHARDSON, JULIAN HOWARD
On an employer assignment, the assignors are typically the inventors.