Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2011-07-19
2011-07-19
Ruddock, Ula C (Department: 1759)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S401000
Reexamination Certificate
active
07981264
ABSTRACT:
The present invention discloses a method and an apparatus of the drift calibration of sensors. The method includes shifting the sensing signal and differential technology to remove the drift signal by time during a long measuring. The apparatus includes two voltage sensors and readout circuits, a signal-shifting circuit and a differential circuit, and the apparatus is used for outputting the response signal without time drifting.
REFERENCES:
patent: 6370941 (2002-04-01), Nakamura et al.
patent: 2003/0218194 (2003-11-01), Chou et al.
patent: 2004/0185591 (2004-09-01), Hsiung et al.
patent: 2005/0139490 (2005-06-01), Chou et al.
Chou Jung-Chuan
Hsung Shen-Kan
Pan Chung-We
Sun Tai-Ping
Tsai Chu-Neng
Bacon & Thomas PLLC
Chung Yuan Christian University
Kaur Gurpreet
Ruddock Ula C
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