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. 06, 2021
Filed:
Sep. 23, 2019
Elan Microelectronics Corporation, Hsinchu, TW;
Kun-Lin Hsieh, Pitou Township, Changhua County, TW;
Jyun-Yu Chen, Hsinchu, TW;
Chia-Hsing Lin, Hsinchu, TW;
ELAN MICROELECTRONICS CORPORATION, Hsinchu, TW;
Abstract
A capacitive sensing and sampling circuit and method thereof are disclosed. The capacitive sensing and sampling circuit has a voltage source, a sensing unit and a detecting circuit. The detecting unit has a first sensing output unit, a second sensing output unit and a sampling unit. The first and second sensing output units are electrically connected to an output of the sensing unit and the sampling unit. Therefore, by increasing the number of alternatively sensing the capacitive sensing component to obtain more capacitive signals, the number of sampling the sensed capacitive signal is relatively increased. Therefore, the white noise interference for the capacitive sensing and sampling circuit is effectively suppressed, so the signal-to-noise ratio is increased and accuracy of detecting coordinates of the touch object is increased.