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. 19, 2026
Filed:
Nov. 06, 2023
Elite Semiconductor Microelectronics Technology Inc., Hsinchu, TW;
Wun-Long Yu, Hsinchu, TW;
ELITE SEMICONDUCTOR MICROELECTRONICS TECHNOLOGY INC., Hsinchu, TW;
Abstract
A device for estimating the temperature of a loudspeaker's voice coil includes a signal generator, a signal adjuster, an adder, and a temperature estimator. The signal generator generates and outputs an amplified signal to a loudspeaker according to a measurement signal and an audio signal, and senses a voltage and a current of the amplified signal to generate and output a sensory output. The signal adjuster generates and outputs an inverted signal according to the audio signal. The adder adds the sensory output and the inverted signal to generate a blended signal. The temperature estimator obtains an estimated resistance value of the loudspeaker's voice coil according to the blended signal, and generates a temperature signal according to the estimated resistance value, wherein the temperature signal indicates an estimated temperature value of the loudspeaker's voice coil. Additionally, a method for estimating the temperature of the loudspeaker voice coil is provided.