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:
Oct. 19, 2021
Filed:
Aug. 13, 2020
Applicant:
Novatek Microelectronics Corp., Hsinchu, TW;
Inventor:
Yen-Cheng Cheng, Hsinchu, TW;
Assignee:
Novatek Microelectronics Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); H03F 1/34 (2006.01); H03F 3/68 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/0412 (2013.01); H03F 1/34 (2013.01); H03F 3/68 (2013.01);
Abstract
A touch analog front-end circuit includes a current conveyor and an accumulator. The current conveyor receives a first voltage as an operation voltage, and generates a current signal according to a touch sensing signal received from a touch display panel. The accumulator is coupled to the current conveyor, receives a second voltage as an operation voltage, and generates an accumulating result according to the current signal and a reference voltage. The first voltage is higher than the second voltage.