Invention Grant
- Patent Title: Self-triggering CMOS image sensor
- Patent Title (中): 自触发CMOS图像传感器
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Application No.: US11928285Application Date: 2007-10-30
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Publication No.: US07812879B2Publication Date: 2010-10-12
- Inventor: Xinqiao Liu , Hung Do
- Applicant: Xinqiao Liu , Hung Do
- Applicant Address: US CA Milpitas
- Assignee: Fairchild Imaging
- Current Assignee: Fairchild Imaging
- Current Assignee Address: US CA Milpitas
- Agent Calvin B. Ward
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/335
Abstract:
An image sensor and method for using the image sensor to capture an image are disclosed. The image sensor includes an imaging array, a first block amplifier and a controller. A first plurality of pixels in the imaging array includes pixels having a photodiode connected to a first node by a gate transistor, a reset transistor connected between the first node and a reset node, a pixel amplifier having an input connected to the first node and an output, and an output gate for connecting the pixel amplifier output to an output bus. The sensor has a monitoring mode and an image capture mode. In the monitoring mode the reset node is connected to the first block amplifier whose output is monitored and used to trigger the image capture mode when the output exceeds a predetermined threshold.
Public/Granted literature
- US20090109313A1 Self-Triggering CMOS Image Sensor Public/Granted day:2009-04-30
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