Method and apparatus for real-time background illumination subtr

Details Method and apparatus for real-time background illumination subtr Method and apparatus for real-time background illumination subtr

1994-10-25

1996-12-17

Crane, Sara W.

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Charge transfer device

257223, 257233, 257239, 257234, 257229, 348243, 348245, 348250, 377 58, 377 57, 377 61, 377 62, 377 63, H01L 27148, H01L 29768, H04N 964, H03K 2346

Patent

active

055856527

ABSTRACT:
The present invention is directed to methods and apparatus for accurately detecting light energy of a signal of interest (e.g., a laser pulse) even when the signal-to-noise ratio is relatively low. The present invention is further directed to accurate detection of a signal of interest even when either or both the signal of interest and background illumination vary across plural pixels of an imaging an array. For example, a signal of interest can be accurately detected even in the presence of pixel response non-uniformity and fixed pattern noise, or when the incident signal of interest is not confined laterally to a single pixel.

REFERENCES:
patent: 3940602 (1976-02-01), Lagnado et al.
patent: 4064533 (1977-12-01), Lampe et al.
patent: 4336557 (1982-06-01), Koch
patent: 4476568 (1984-10-01), Prince
patent: 4593303 (1986-06-01), Dyck et al.
"Charge Transfer Devices", Carlo H. Sequin et al., Academic Press, Inc., 1975, Title page and Table of Contents and pp. 12-13, 163-164.

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