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. 08, 2014
Filed:
Sep. 20, 2011
Chung-chun Chen, Hsin-Chu, TW;
Cheng-chiu Pai, Hsin-Chu, TW;
Chung-Chun Chen, Hsin-Chu, TW;
Cheng-Chiu Pai, Hsin-Chu, TW;
AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
The invention provides a circuit for determining positions of contacts on a capacitive position detecting panel. The capacitive position detecting panel includes a plurality of sensing lines and driving lines. The circuit includes a plurality of first amplifiers and second amplifiers. The first amplifiers respectively connect to the sensing lines, and the second amplifiers respectively connect to the driving lines. Input nodes of the first amplifiers are connected to a first input signal source, and input nodes of the second amplifiers are selectively connected to the first input signal source or a second input signal source. When the circuit is operated under a first operation mode, the input nodes of the second amplifiers are connected to the first input signal source; and when the circuit is operated under a second operating mode, the input modes of a plurality of specific second amplifiers are connected to the second input signal source.