Television – Camera – system and detail – Solid-state image sensor
Patent
1994-05-19
1995-11-28
Yusko, Donald J.
Television
Camera, system and detail
Solid-state image sensor
348307, H04N 314
Patent
active
054712459
ABSTRACT:
An image array with improved dynamic range has at least one photosite, at least one column sense line and at least one column clamp transistor. A source of the photosite is coupled to the column sense line. A source of the column clamp transistor is coupled to the photosite source. A drain of the column clamp transistor is coupled to a drain of the photosite. A gate of the column clamp transistor is provided for application of a .phi..sub.cc signal. The .phi..sub.cc signal is coupled through a capacitance to the column sense line.
REFERENCES:
patent: 4819070 (1989-04-01), Hynecek
patent: 4901129 (1990-02-01), Hynecek
patent: 5083016 (1992-01-01), Wyles
patent: 5093727 (1992-03-01), Kakinuma et al.
patent: 5128534 (1992-07-01), Wyles
A Bulk Charge Modulated Device (BCMD) Image Sensor, Neal Cooper, et al., Image Technology, TI Technical Journal, Sep.-Oct. 1991, pp. 14-19.
BCMD-An Improved Photosite Structure for High-Density Image Sensors, IEEE Transactions on Electron Devices, vol. 38, No. 5, May 1991, Jaroslav Hynecek, pp. 1011-1020.
Cooper Alan N.
Hynecek Jaroslav
McCracken William P.
Day Michael
Donaldson Richard L.
Hiller William E.
Stewart Alan K.
Texas Instruments Incorporated
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