Circuit for processing sensor signals

Details Circuit for processing sensor signals Circuit for processing sensor signals

1993-05-10

1995-04-18

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 63, 327 65, 327 77, 327514, H03K 524

Patent

active

054081432

ABSTRACT:
A circuit for unambiguously indicating the presence and comparative values of output signals from a plurality of sensors includes first and second comparators respectively providing first and second comparison signals having high or low logic levels. A source of reference voltages provides individual reference voltages to one input terminal of each of the comparators. A first sensor is arranged between a source of operating potential and a second input terminal of the first comparator. The first sensor switches the operating potential on and off of the second input terminal in accordance with the reception of energy by the first sensor to vary the output terminal of the first comparator between high and low logic levels when the reference potential exceeds the operating potential. A second sensor arranged is between the source of operating potential and the second input terminal of the second comparator. The second sensor switches the operating potential on and off of the second input terminal in accordance with the reception of energy by the second sensor to switch the output terminal of the second comparator between high and low logic levels when the operating potential exceeds the reference potential. The operating potential is blocked from at least one of the comparators when both of the sensors receive the same energy.

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Derwent World Patent Index Record for DE 38 11 946, including English language abstract and descriptive title.
Derwent World Patent Index Record for DE 39 14 216, including English language abstract and descriptive title.

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