Position detector, camera-shake compensation mechanism, and...

Details Position detector, camera-shake compensation mechanism, and... Position detector, camera-shake compensation mechanism, and...

2006-11-07

2006-11-07

Patidar, Jay M. (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207200, C324S207240, C324S207260

Reexamination Certificate

active

07132824

ABSTRACT:
A position detector includes a magnet, a pair of Hall effect devices, and a processing circuit for detecting relative positions of the magnet and the pair of Hall effect devices. The processing circuit detects a difference in magnitude between output values of the Hall effect devices, as position outputs, with an input value to each of the Hall effect devices being controlled such that a sum of magnitudes of respective output values of the Hall effect devices is constant.

REFERENCES:
patent: 4415856 (1983-11-01), Welles
patent: 4746859 (1988-05-01), Malik
patent: 6154027 (2000-11-01), Alexander et al.
patent: 7-190800 (1995-07-01), None
patent: 2001-91298 (2001-04-01), None
patent: 2002-182846 (2002-06-01), None
patent: 2003-75108 (2003-03-01), None

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