Invention Grant
- Patent Title: Image sensor with voltage supply grid clamping
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Application No.: US17531465Application Date: 2021-11-19
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Publication No.: US11706543B2Publication Date: 2023-07-18
- Inventor: Chengcheng Xu , Rui Wang , Bi Yuan , Liang Zuo
- Applicant: OMNIVISION TECHNOLOGIES, INC.
- Applicant Address: US CA Santa Clara
- Assignee: OmniVision Technologies, Inc.
- Current Assignee: OmniVision Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Perkins Coie LLP
- The original application number of the division: US16708135 2019.12.09
- Main IPC: H04N5/232
- IPC: H04N5/232 ; H04N25/75 ; H04N25/74 ; H04N25/76 ; H04N25/709 ; H04N25/772 ; H04N25/766 ; H04N25/50

Abstract:
An image sensing device includes an image sensing circuit, a voltage supply grid, bitlines, and a control circuit. The image sensing circuit includes pixels arranged in rows and columns. Each one of the bitlines is coupled to a corresponding one of the columns. The voltage supply grid is coupled to the pixels. The control circuit is coupled to output at least a row select signal and a transfer signal to the rows. Each one of the rows is selectively coupled to the bitlines to selectively output image data signals in response to the row select signal and the transfer signal. Each one of the rows is further selectively coupled to the bitlines to selectively clamp the bitlines in response to the row select signal and the transfer signal. Each one of the rows is selectively decoupled from the bitlines in response to the row select signal.
Public/Granted literature
- US20220078365A1 IMAGE SENSOR WITH VOLTAGE SUPPLY GRID CLAMPING Public/Granted day:2022-03-10
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