Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2008-07-31
2011-11-22
Hollington, Jermele M (Department: 2858)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S244000, C324S262000
Reexamination Certificate
active
08063634
ABSTRACT:
An electronic circuit includes a primary magnetoresistance element for providing a first output signal proportional to a magnetic field. The primary magnetoresistance element has a primary maximum response axis. The primary magnetoresistance element also has a hysteresis characteristic. The electronic circuit also includes a reset conductor disposed proximate to the magnetoresistance element. The electronic circuit also includes a secondary magnetic field sensing element for providing a second output signal proportional to a magnetic field. The secondary magnetic field sensing element has a secondary maximum response axis, which, in some embodiments, is substantially perpendicular to the primary maximum response axis. In operation, the primary magnetoresistance is reset in accordance with an excessive magnetic field sensed by the secondary magnetic field sensing element.
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Sauber John
Taylor William P.
Allegro Microsystems Inc.
Daly, Crowley & Mofford & Durkee, LLP
Hollington Jermele M
Nguyen Trung
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