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:
Nov. 09, 2021
Filed:
Jun. 11, 2020
Dexin Electronic Ltd., Guangdong, CN;
Dexin Corporation, New Taipei, TW;
Ho-Lung Lu, New Taipei, TW;
Shun-Chieh Chang, New Taipei, TW;
DEXIN ELECTRONIC LTD., Guangdong, CN;
DEXIN CORPORATION, New Taipei, TW;
Abstract
An annular radiation speaker structure includes an external speaker enclosure, an internal speaker enclosure and a speaker unit. The external speaker enclosure has a bottom portion and an outer wall, the outer wall extends upward from a periphery of the bottom portion and jointly defines an outer cavity, an inner wall surface of the outer wall has a supporting portion, a height difference between a top end of the supporting portion and a top end of the outer wall is defined as a built-in height, and the bottom portion forms a sound cone. The internal speaker enclosure has an inner cylinder wall, the inner cylinder wall has an upper opening and a lower opening and defines an inner cavity, and a bottom end of the inner cylinder wall is disposed on the supporting portion and forms a resonant cavity between the supporting portion and the sound cone.