Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2006-09-26
2006-09-26
Gabor, Otilia (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C073S504040
Reexamination Certificate
active
07112793
ABSTRACT:
A measurement technique for normalizing the sensitive-axis output of a magnetoresistive (MR) sensor which greatly reduces both temperature effects and magnetic contributions from the insensitive-axis cross-terms. Specifically, the normalization techniques disclosed may be effectuated by direct measurement with no prior knowledge of the sensor constants being required and may be performed for a single sensor with multiple sensors not being required in order to estimate the cross-axis fields for each of the other sensors. The technique can additionally provide an output proportional to the insensitive-axis field as well as that of the sensitive-axis and, when combined with knowledge of ambient field strengths, can be used to determine fundamental MR sensor constants which then allows for correction of higher-order sensor non-linearities. The techniques disclosed are particularly conducive to low power supply availability applications such as battery operation.
REFERENCES:
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Gabor Otilia
Hogan & Hartson LLP
Kama-Tech (HK) Ltd.
Kubida William J.
Laser Technology, Inc.
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