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:
Apr. 30, 2013
Filed:
Jan. 03, 2011
Cheng-hsiung Chen, Banqiao, TW;
Hsiang-chih Yu, Zhonghe, TW;
Chu-you Hsieh, Xizhi, TW;
Chin-chou Yang, Danshui Township, Taipei County, TW;
Cheng-Hsiung Chen, Banqiao, TW;
Hsiang-Chih Yu, Zhonghe, TW;
Chu-You Hsieh, Xizhi, TW;
Chin-Chou Yang, Danshui Township, Taipei County, TW;
Abatech Electronics Co., Ltd., Taipei County, TW;
Other;
Abstract
An ultra-thin loudspeaker structure comprises an upper drum paper, a lower drum paper, and a steel sheet. The lower drum paper defines an opening at a center thereof and is integrally formed with a surrounding raised paper section near a periphery thereof. The upper drum paper defines an opening, corresponding to the opening of the lower drum paper, at a center thereof. The upper drum paper is located within the surrounding raised paper section and adhered to the lower drum paper by its periphery. The steel sheet is provided with a sound-making member stacked by a plurality of ceramic material layer, and is sandwiched between the drum papers. Accordingly, the steel sheet can facilitate spreading sound of high and medium frequency whereas the drum papers can facilitate spreading sound of low frequency, to achieve a better reproduction of sound.