Position detecting circuit and imaging apparatus

Details Position detecting circuit and imaging apparatus Position detecting circuit and imaging apparatus

2008-04-16

2010-06-15

Koval, Melissa J (Department: 2862)

Photography

Camera shake sensing

Having stabilization system

C396S263000, C348S208990, C348S208400, C324S207120, C324S207200

Reexamination Certificate

active

07738781

ABSTRACT:
A position detecting circuit provided in an imaging apparatus having an optical system that images a subject image, an imaging element that performs photoelectric conversion of the subject image, and a release switch capable of setting states of two stages includes: a plurality of magnetic field change detecting elements that detect the intensity of a magnetic field formed by a magnetic field generating body attached to either the optical system or the imaging element and that are provided so as to be separated from each other; a position detecting portion that detects the position of the magnetic field generating body on the basis of outputs from the plurality of magnetic field change detecting elements; and a standby portion that stops a function of at least one of the position detecting portion and the plurality of magnetic field change detecting elements until a first stage of the release switch is set.

REFERENCES:
patent: 6327433 (2001-12-01), Ishikawa et al.
patent: 7132824 (2006-11-01), Masuda et al.
patent: 2008/0292297 (2008-11-01), Fushida et al.
patent: 2005-331399 (2005-12-01), None

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