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:
Jan. 17, 2023
Filed:
Sep. 07, 2021
Applicant:
Egis Technology Inc., Hsinchu, TW;
Inventors:
Assignee:
Egis Technology Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/13 (2022.01);
U.S. Cl.
CPC ...
G06V 40/13 (2022.01);
Abstract
A capacitive fingerprint sensing device is provided. A sensing pixel unit includes a capacitor, a reset circuit, and a sensing capacitor. The reset circuit provides a reset voltage during a reset period to reset a voltage on the capacitor and provides an adjustment current during a sensing period to adjust a sense voltage generated on a common junction of the capacitor and the reset circuit.