Image pickup apparatus and method for controlling the same

Details Image pickup apparatus and method for controlling the same Image pickup apparatus and method for controlling the same

2006-08-29

2009-11-17

Koval, Melissa J. (Department: 2862)

Photography

With exposure objective focusing means, focusing aid, or...

Lens resetting

C348S357000

Reexamination Certificate

active

07620307

ABSTRACT:
An image pickup apparatus includes a relative phase detecting unit operable to detect an amount of change in a relative phase associated with movement of a movable portion; an origin point position detecting unit operable to detect that the position of a reference part passes through an origin point; a relative position deriving unit operable to derive information on a relative position of the movable portion; a relative detection position retaining unit operable to retain a relative detection position of the movable portion based on the information on the relative position obtained at the time of the detection by the origin point position detecting unit; a calculating unit operable to calculate an absolute detection phase based on the relative detection position of the movable portion and to generate a drive signal based on the absolute detection phase; and a driving unit operable to move the movable portion to the reset position based on the drive signal.

REFERENCES:
patent: 5495309 (1996-02-01), Shiina et al.
patent: 6029010 (2000-02-01), Miyanari
patent: 7130536 (2006-10-01), Ito
patent: 2005/0220449 (2005-10-01), Hirai
patent: 2007/0133970 (2007-06-01), Honjo et al.
patent: 2001-087989 (2001-04-01), None

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