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.:

US 8149219 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 03, 2012

Filed:

Nov. 16, 2005
Applicants:

Jia-yih Lii, Taichung, TW;

Yen-chang Chiu, Linkou Shiang, TW;

Yung-lieh Chien, Taoyuan, TW;

Inventors:

Jia-Yih Lii, Taichung, TW;

Yen-Chang Chiu, Linkou Shiang, TW;

Yung-Lieh Chien, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a touchpad with single-layered PCB structure, a PCB has a bottom layer with a sensor area and a component area thereon, the sensor area includes two directional traces directly connected to the component area, respectively, and carbon film wires in the sensor area for interconnecting one or more of the directional traces.


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Lii, Jia-Yih. (2012). Touchpad with single-layered printed circuit board structure (U.S. Patent No. 8149219). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8149219

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