Invention Grant
- Patent Title: Fingerprint detecting system and related method
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Application No.: US16789448Application Date: 2020-02-13
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Publication No.: US11250232B2Publication Date: 2022-02-15
- Inventor: Hung-Kai Chen , Ting-Hsuan Hung , Chih-Yuan Chang , Feng-Lin Chan
- Applicant: NOVATEK Microelectronics Corp.
- Applicant Address: TW Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
A fingerprint detecting system comprises a fingerprint module, for receiving a fingerprint driving signal and performing a frequency modulation on the fingerprint driving signal, to correspondingly outputting a fingerprint signal with a first frequency based on the fingerprint driving signal, and a signal processing circuit, coupled to the fingerprint module, for receiving the fingerprint signal with the first frequency, performing a frequency demodulation to shift the first frequency of the fingerprint signal to a second frequency, and filtering the fingerprint signal with the second frequency based on the first frequency, whereby the filtered fingerprint signal is used for a fingerprint data analysis.
Public/Granted literature
- US20210256240A1 Fingerprint Detecting System and Related Method Public/Granted day:2021-08-19
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