Invention Grant
- Patent Title: Method of switching control voltage of photo sensor cell and related switching circuit and photo sensor
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Application No.: US16290948Application Date: 2019-03-03
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Publication No.: US11112302B2Publication Date: 2021-09-07
- Inventor: Jung-Chen Chung , Chi-Ting Chen
- 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: G01J1/44
- IPC: G01J1/44 ; H03K3/356
Abstract:
A method of switching a control voltage of a photo sensor cell for a photo sensor includes when the photo sensor cell is switched from a turned-off state to an turned-on state, sequentially switching the control voltage to at least one first voltage provided by at least one first voltage supply, and switching the control voltage to a first target voltage provided by a first charging pump circuit; and when the photo sensor cell is switched from the turned-on state to the turned-off state, sequentially switching the control voltage to at least one second voltage provided by at least one second voltage supply or a ground voltage, and switching the control voltage to a second target voltage provided by a second charging pump circuit.
Public/Granted literature
- US20200278246A1 Method of Switching Control Voltage of Photo Sensor Cell and Related Switching Circuit and Photo Sensor Public/Granted day:2020-09-03
Information query
