Apparatus and method for normalizing multiple color signals

Details Apparatus and method for normalizing multiple color signals Apparatus and method for normalizing multiple color signals

1998-01-05

2000-02-15

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502081, 250214A, 348223, 358406, H04N 156

Patent

active

060255897

ABSTRACT:
Color optical sensor array (11) having a color optical sensor (13) with each color optical sensor (13) having a color photodetector (56) and an active integrator circuit. The active integrator circuit having an operational amplifier (50) and an integrating capacitor (51), the active integrator circuit operating to integrate and normalize the electrical signal from color photodetector (56).

REFERENCES:
patent: 5233180 (1993-08-01), Tsuruta et al.
patent: 5424774 (1995-06-01), Takayama et al.
patent: 5448056 (1995-09-01), Tsuruta
patent: 5506430 (1996-04-01), Ohzu
patent: 5729361 (1998-03-01), Suggs et al.

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