Invention Grant
US08643750B2 Reducing noise in image sensors by concurrently reading reset and image signal levels from active and reference pixels
有权
通过同时从有源和参考像素读取复位和图像信号电平，从而降低图像传感器中的噪声
- Patent Title: Reducing noise in image sensors by concurrently reading reset and image signal levels from active and reference pixels
- Patent Title (中): 通过同时从有源和参考像素读取复位和图像信号电平，从而降低图像传感器中的噪声
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Application No.: US12930015Application Date: 2010-12-22
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Publication No.: US08643750B2Publication Date: 2014-02-04
- Inventor: Yaowu Mo , Chen Xu
- Applicant: Yaowu Mo , Chen Xu
- 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: H04N5/217
- IPC: H04N5/217 ; H04N5/235
Abstract:
A method of one aspect includes reading a reset level of an active pixel, and concurrently, reading a reset level of a reference pixel. The method also includes reading an image signal level of the active pixel, and concurrently, reading an image signal level of the reference pixel. A reduced noise image signal level of the active pixel is generated based on the reset levels and the image signal levels of the active and reference pixels. Other methods are disclosed as well as apparatus and systems.
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