Rotation detecting device

Details Rotation detecting device Rotation detecting device

2005-03-22

2005-03-22

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207190, C324S207210

Reexamination Certificate

active

06870365

ABSTRACT:
Six magneto-resistance segments are formed by film-forming on a signal processing circuit part consisting of an IC chip and are disposed in a predetermined rotation direction of a magnetic moving body, symmetrically about the centerline of a magnet perpendicular to that rotation direction. Two pairs of magneto-resistance segments, whose pitch centers are positioned symmetrically with respect to the centerline of the magnet, form first and second bridge circuits, and the remaining pair of magneto-resistance segments, which has its pitch center on the centerline of the magnet, forms a third bridge circuit.

REFERENCES:
patent: 5644851 (1997-07-01), Blank et al.
patent: 6456063 (2002-09-01), Moreno et al.
patent: 6630821 (2003-10-01), Shinjo et al.

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