Active Pixel Sensors
نویسنده
چکیده
A new type of image sensor is emerging from the most advanced image sensor R&D laboratories in Japan. This sensor, termed an active pixel sensor (APS), may one day supplant charge-coupled devices (CCDs) in many applications. The charge-coupled device relies on the shifting of charge to read out the image. The active pixel sensor acts like a random access memory (RAM) device wherein each pixel contains its own selection and readout transistors. The readout of the signal takes place then over metallic wires rather than by shifting the charge in the semiconductor. This gives the APS several advantages over the APS.
منابع مشابه
CMOS Image Sensors: Electronic Camera On A Chip - Electron Devices Meeting, 1995., International
Recent advancements in CMOS image sensor technology are reviewed, including both passive pixel sensors and active pixel sensors. On-chip analog to digital converters and on-chip timing and control circuits permit realization of an electronic camera-on-a-chip.
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تاریخ انتشار 2007