Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination
Reexamination Certificate
2006-02-28
2009-06-02
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Dimensional determination
Reexamination Certificate
active
07542870
ABSTRACT:
A level sensor includes a first transducer generating a first signal, a second transducer generating a second signal, and a processor configured to switch operation between a first mode and a second mode. In the first mode, the first transducer generates the first signal and the second transducer senses a reflection of the first signal from a surface. In the second mode, the second transducer generates the second signal and the first transducer senses a reflection of the second signal from a reference target. The processor determines a distance to the surface.
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PCT/US/62778 International Search Report dated Feb. 14, 2008.
Murphy Gregory P.
Reimer Lawrence B.
Bhat Aditya
Bui Bryan
Michael & Best & Friedrich LLP
SSI Technologies, Inc.
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