Television – Camera – system and detail – Solid-state image sensor
Reexamination Certificate
2007-05-08
2007-05-08
Vu, Ngoc-Yen (Department: 2622)
Television
Camera, system and detail
Solid-state image sensor
C348S310000
Reexamination Certificate
active
10406698
ABSTRACT:
Compact CMOS pixel sensors containing three or four total transistors and four or five control lines provide a high percentage of sensor area for the photodiode that measures light intensity. The CMOS pixel sensors thus have good light sensitivity. The CMOS pixel sensors also provide active reset operations yielding low noise when resetting node voltages. The low transistor count is achieved using the same transistors during both reset operations and readout operation. Reversing the current direction through a pixel sensor during readout allows the row selection transistor to act as a buffer for a transistor having a gate coupled to the photodiode node.
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Beck Jeffery S.
Mentzer Ray A.
Micro)n Technology, Inc.
RatnerPrestia
Vu Ngoc-Yen
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