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:
Jun. 20, 2023
Filed:
Mar. 05, 2020
Novatek Microelectronics Corp., Hsin-Chu, TW;
Tsen-Wei Chang, Taichung, TW;
NOVATEK Microelectronics Corp., Hsin-Chu, TW;
Abstract
A fingerprint signal processing circuit for a fingerprint sensor configured to sense light from a display panel touchable by a finger includes an analog front-end (AFE) circuit and an analog-to-digital converter (ADC). The AFE circuit is configured to receive an image signal from at least one sensing pixel of the fingerprint sensor and generate an analog output signal. The AFE circuit includes a gain circuit, which is configured to receive a compensation signal and process the image signal according to the compensation signal to generate the analog output signal, wherein a signal value of the compensation signal corresponds to a touched position of the finger in the fingerprint sensor. The ADC, coupled to the AFE circuit, is configured to convert the analog output signal into a digital code.