Electrical resistors – Resistance value responsive to a condition – Magnetic field or compass
Reexamination Certificate
2007-09-28
2009-11-10
Pizarro, Marcos D. (Department: 2814)
Electrical resistors
Resistance value responsive to a condition
Magnetic field or compass
C257S536000, C257S537000, C257S538000, C330S075000, C338S03200R, C338S295000
Reexamination Certificate
active
07616089
ABSTRACT:
A resistive circuit includes a first terminal and a second terminal and polycrystalline first and second resistive segments coupled between the first and second terminals. A third terminal A is coupled to the first resistive segment, and a third terminal B is coupled to the second resistive segment. The third terminal A has a first voltage with respect to the first terminal, and the third terminal B has a second voltage with respect to the second terminal. With this arrangement, the non-linearity of resistance of the first resistive segment at least partially compensates for non-linearity of resistance of the second resistive segment.
REFERENCES:
patent: 6911896 (2005-06-01), Nicholson et al.
patent: 2006/0027894 (2006-02-01), Harada
patent: 2008/0278213 (2008-11-01), Morini
patent: 2000150778 (2000-05-01), None
patent: WO 23777 (2000-04-01), None
Melanson John L.
Prasad Ammisetti
Yang Hua
Cirrus Logic Inc.
Dillon & Yudell LLP
Gupta Raj
Pizarro Marcos D.
Russell Brian F.
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