The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2017
Filed:
Mar. 08, 2016
Motorola Solutions, Inc., Schaumburg, IL (US);
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Abstract
Method, device, and system for identifying a howling source and suppressing howling. One system includes a first communication device including a microphone, a first transceiver, and an electronic processor. The system also includes a second communication device including a second transceiver transmitting a radio signal and a speaker transmitting an acoustic signal. The electronic processor determines a first distance between the first communication device and the second communication device based on the radio signal received by the first transceiver. When the first distance is less than a first threshold, the electronic processor determines a second distance between the first communication device and the second communication device based on the acoustic signal received by the microphone. When the second distance is less than a second threshold, the electronic processor instructs at least one selected from the group consisting of the first communication device and the second communication device to suppress howling.