Method to adjust the signal level of an active pixel and...

Details Method to adjust the signal level of an active pixel and... Method to adjust the signal level of an active pixel and...

2007-05-29

2007-05-29

Srivastava, Vivek (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

Reexamination Certificate

active

09906418

ABSTRACT:
An active pixel comprises a sensor circuit for collecting radiation induced charges and transducing them to a measurement signal corresponding to the amount of charge collected, and a capacitor element with two nodes, where the measurement signal is present on a node of the capacitor element. The memory circuit is clocked, i.e. driven by a pulsed signal. The pulse on the memory circuit will rise the reset level at the output, which is lowered due to threshold voltage losses in the active pixel circuit, thus restoring a large signal swing. Arrays of the pixels are described, as well as a method for reading out such a pixel.

REFERENCES:
patent: 5128534 (1992-07-01), Wyles et al.
patent: 5461425 (1995-10-01), Fowler et al.
patent: 5990948 (1999-11-01), Sugiki
patent: 6166367 (2000-12-01), Cho
patent: 6836291 (2004-12-01), Nakamura et al.
Yadid-Pecht, “A random access photodiode array for intelligent image capture”, IEEE Transactions of Electron Devices, vol. 38, No. 8, Aug. 1991, p. 1772.

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