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:
Mar. 09, 2021
Filed:
Oct. 28, 2016
Applicants:
Focaltech Electronics, Ltd., Grand Cayman, KY;
Yunn-hwa Wang, Guangdong, CN;
Inventor:
Yunn-Hwa Wang, Guangdong, CN;
Assignee:
FOCALTECH ELECTRONICS, LTD., Grand Cayman, KY;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); H01L 27/10 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
H01L 27/101 (2013.01); G06F 3/044 (2013.01); G06K 9/0002 (2013.01);
Abstract
A fingerprint sensing chip and a terminal device are provided. The fingerprint sensing chip includes a first signal, a second signal and a driving signal. The second signal is generated based on the first signal, and the driving signal is generated by performing a ground raise process on the second signal. The driving signal is used to provide a driving voltage for fingerprint sensing.