Infra-red sensing array

Details Infra-red sensing array Infra-red sensing array

1993-05-05

1995-05-30

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250332, 2503383, H01L 3702, G01J 534

Patent

active

054204283

ABSTRACT:
The sensing array detects an image by measuring the changes in the dielectric constant of individual capacitors in a rectangular array of capacitors. The present invention avoids the use of isolation transistors to eliminate the effects of other capacitors in the array when measuring the capacitance of a given capacitor in the array. During the measurement of any given capacitor in the array, the present invention maintains a zero potential difference across the capacitors that are not being measured, thereby eliminating any interference that might be caused by these capacitors.

REFERENCES:
patent: 3098996 (1963-07-01), Kretzmer
patent: 3118133 (1964-01-01), Meeker et al.
patent: 3350691 (1967-10-01), Faulis et al.
patent: 3370277 (1968-02-01), Van Goethem
patent: 3416143 (1968-12-01), Van Goethem et al.
patent: 4142207 (1979-02-01), McCormack et al.
patent: 4162402 (1979-07-01), Hopper
patent: 4902895 (1990-02-01), Hanson

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