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:
Sep. 08, 2020
Filed:
May. 23, 2019
Shenzhen Goodix Technology Co., Ltd., Shenzhen, Guangdong, CN;
Guanliang Liao, Shenzhen, CN;
Qiu Zhou, Shenzhen, CN;
Wenhe Jin, Shenzhen, CN;
Yufeng Liu, Shenzhen, CN;
Shenzhen Goodix Technology Co., LTD., Shenzhen, Guangdong, CN;
Abstract
The present disclosure provides a touch detection chip and a touch screen detection method. The touch detection chip includes: a signal output unit configured to output a driving signal to a first channel of a touch screen; a first analog front end circuit, an inverting input end of which being connected to the first channel; a second analog front end circuit, an inverting input end of which being connected to a second channel of the touch screen; an impedance-adjustable circuit connected between a non-inverting input end of the first analog front end circuit and the signal output unit; a DC voltage unit connected to a non-inverting input end of the second analog front end circuit; and a processing unit separately connected to the signal output unit, the first analog front end circuit and the second analog front end circuit.