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:
Dec. 02, 2025
Filed:
Feb. 13, 2025
G2touch Co., Ltd., Seongnam-si, KR;
G2touch Co., Ltd., Seongnam-si, KR;
Abstract
Provided is a touch signal detection apparatus configured to calibrate a quantization error of a touch signal including a first digital-to-analog converter (DAC) configured to provide a first calibration voltage, a first calibration amplifier configured to amplify and output a difference between a touch signal generated by detecting touch input and the first calibration voltage using gain greater than 1, a second DAC configured to provide a second calibration voltage, a second calibration amplifier configured to sample and hold a difference between output of the first calibration amplifier and the second calibration voltage, and an analog-to-digital converter (ADC) configured to convert output of the second calibration amplifier into a digital code, wherein bit resolutions of the first DAC and the second DAC are the same.