Invention Grant
- Patent Title: Capacitive image sensing device
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Application No.: US15993613Application Date: 2018-05-31
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Publication No.: US10706250B2Publication Date: 2020-07-07
- Inventor: Chi-Ting Chen
- Applicant: Novatek Microelectronics Corp.
- Applicant Address: TW Hsinchu
- Assignee: Novatek Microelectronics Corp.
- Current Assignee: Novatek Microelectronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: JCIPRNET
- Main IPC: G06K9/20
- IPC: G06K9/20 ; G06K9/00 ; G01D5/24 ; H03F3/70 ; H03F3/45 ; H03F1/34

Abstract:
A capacitive image sensing device is provided. The capacitive image sensing device includes a first charge amplifier, a second charge amplifier and a differential amplifier. The first charge amplifier is coupled to one of sensing electrodes of a sensor array. The differential amplifier has a first input terminal, a second input terminal and a differential output terminal pair. The first input terminal of the differential amplifier is coupled to the first charge amplifier. The second input terminal of the differential amplifier is coupled to the second charge amplifier.
Public/Granted literature
- US20180349666A1 CAPACITIVE IMAGE SENSING DEVICE Public/Granted day:2018-12-06
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