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:
Jun. 23, 2026
Filed:
Mar. 28, 2024
Applicant:
Motorola Solutions, Inc., Chicago, IL (US);
Inventors:
Lian Kooi Ng, Taiping, MY;
Boon Kheng Hooi, Gelugor, MY;
Kah Khoon Khoo, Butterworth, MY;
Wai Mun Lee, Ipoh, MY;
Yu Sheng Lim, Bayan Lepas, MY;
Teik Seng Saw, Sungai Petani, MY;
Chen Kok Yeoh, Bukit Mertajam, MY;
Assignee:
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H04R 29/001 (2013.01); H03F 3/245 (2013.01); H03F 2200/03 (2013.01);
Abstract
One example provides a portable communications device including a speaker, a power amplifier configured to provide audio signals to the speaker, a sensing circuit configured to sense a variable parameter of the speaker, and a control circuit coupled to the sensing circuit. The control circuit is configured to selectively connect a resistive load between the power amplifier and the speaker based on the variable parameter.