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:
Jul. 02, 2019
Filed:
May. 08, 2018
Zilltek Technology (Shanghai) Corp., Shanghai, CN;
Zilltek Technology Corp., Hsinchu, TW;
Jinghua Ye, Shanghai, CN;
ZILLTEK TECHNOLOGY (SHANGHAI) CORP., Shanghai, CN;
ZILLTEK TECHNOLOGY CORP., Hsinchu, TW;
Abstract
A sound amplification system integrated with back cavity pressure sensing, including: a loudspeaker body, including: a vibrating diaphragm, a voice coil connected with the vibrating diaphragm, and a back cavity, wherein the voice coil is connected to a driving unit, a microphone is in the back cavity, and the microphone senses an internal pressure of the back cavity; a computing unit, making an estimation of a displacement of the vibrating diaphragm based on the internal pressure; and a processing unit, determining the displacement of the vibrating diaphragm when compared with a reference displacement, when it is determined that the displacement exceeds a set threshold, a pre-compensation signal is generated and provided to the driving unit.