Invention Grant
- Patent Title: Split pixel high dynamic range sensor
- Patent Title (中): 分割像素高动态范围传感器
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Application No.: US14554791Application Date: 2014-11-26
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Publication No.: US09571763B2Publication Date: 2017-02-14
- Inventor: Eiichi Funatsu , Yaowu Mo
- 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: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H04N5/355
- IPC: H04N5/355 ; H04N5/3745 ; H04N9/04

Abstract:
A method of reading out a pixel includes photogenerating charge carriers during a single integration time in photodetectors of each one of a plurality of sub-pixels included in the pixel. Each one of the plurality of sub-pixels of the pixel has a same color filter. A floating diffusion node of the pixel is reset. The floating diffusion node is sampled to generate a reset output sample signal. Charge carriers that were photogenerated in a first portion of the plurality of sub-pixels are transferred to the floating diffusion node. The floating diffusion node is sampled to generate a first output sample signal. Charge carriers that were photogenerated in a second portion of the plurality of sub-pixels are transferred to the floating diffusion node. The floating diffusion node is sampled to generate a second output sample signal.
Public/Granted literature
- US20150201139A1 SPLIT PIXEL HIGH DYNAMIC RANGE SENSOR Public/Granted day:2015-07-16
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