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:
Aug. 21, 2018
Filed:
Aug. 05, 2016
Raydium Semiconductor Corporation, Hsinchu, TW;
Chang-Ching Chiang, Taichung, TW;
Kun-Pei Lee, Miaoli County, TW;
Raydium Semiconductor Corporation, Hsinchu County, TW;
Abstract
A capacitive fingerprint sensing apparatus includes sensing electrodes, a sensing driver, and a processing module. In a self-capacitive sensing mode, the sensing driver performs self-capacitive sensing on at least one sensing electrode to obtain a first fingerprint sensing signal. In a mutual-capacitive sensing mode, the sensing driver performs mutual-capacitive sensing on at least two adjacent sensing electrodes to obtain a second fingerprint sensing signal. The processing module generates a first fingerprint pattern and a second fingerprint pattern according to the first fingerprint sensing signal and the second fingerprint sensing signal and combines the first fingerprint pattern and the second fingerprint pattern into a combined fingerprint pattern. The resolution of the combined fingerprint pattern along at least one direction is larger than that of the first fingerprint pattern and the second fingerprint pattern along the at least one direction.