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:
Feb. 07, 2012
Filed:
Aug. 06, 2008
Shih-yuan Lee, Taipei County, TW;
Chih-kung Lee, Taipei, TW;
Wen-ching Ko, Kaohsiung, TW;
Jia-lun Chen, Tainan, TW;
Ing Yih Leu, Taipei, TW;
Wen-hsin Hsiao, Taoyuan County, TW;
Wen-jong Wu, Taipei, TW;
Shih-Yuan Lee, Taipei County, TW;
Chih-Kung Lee, Taipei, TW;
Wen-Ching Ko, Kaohsiung, TW;
Jia-Lun Chen, Tainan, TW;
Ing Yih Leu, Taipei, TW;
Wen-Hsin Hsiao, Taoyuan County, TW;
Wen-Jong Wu, Taipei, TW;
National Taiwan University, , TW;
Abstract
A speaker comprises at least one electrode electrically coupled with an audio signal input and a film comprising at least one electret layer. The film is configured to interact with the electrode in response to an audio signal supplied by the audio signal input and to vibrate to generate sound waves. The electret layer is formed from a polymer-containing solution.