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. 14, 2012
Filed:
Dec. 29, 2008
Applicants:
Daniel Chang, Pa-Te, TW;
Chia-lun Tang, Pa-Te, TW;
Yan-wen Zhao, Chengdu, CN;
Jianliang Shen, Chengdu, CN;
Inventors:
Daniel Chang, Pa-Te, TW;
Chia-Lun Tang, Pa-Te, TW;
Yan-Wen Zhao, Chengdu, CN;
Jianliang Shen, Chengdu, CN;
Assignee:
Auden Techno Corp., Pa-Te, Tao-Yuan Hsien, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 9/84 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-band HAC compatible antenna module having a metal shield arranged around the built-in antenna for resonant coupling with the antenna to lower electromagnetic interference and to improves hearing aids compatibility characteristic. When compared with a reference antenna without metal shield, the multi-band HAC compatible antenna module shows 3 dB˜4 dB HAC improvement in GSM850 and GSM900, and 1 dB HAC improvement in DCS and PCS bands.