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:
Aug. 01, 2017
Filed:
Dec. 18, 2014
Huawei Device Co., Ltd., Shenzhen, Guangdong, CN;
Hailong Liu, Shenzhen, CN;
Jin Zhou, Shanghai, CN;
Huawei Device Co., Ltd., Shenzhen, CN;
Abstract
The present invention provides a touch signal detection circuit. The touch signal detection circuit includes: a processing unit, at least one linear transmitting electrode, and at least two linear receiving electrodes; the transmitting electrode is perpendicular to the receiving electrode, the receiving electrode is perpendicular to a source driver line of a display screen, and each receiving electrode and each transmitting electrode form one node mutual capacitance; the processing unit acquires capacitance change values of at least two node mutual capacitances, and acquires a location of a touch signal according to the capacitance change values of the at least two node mutual capacitances.