Optical apparatus with motor drive control selected based on...

Details Optical apparatus with motor drive control selected based on... Optical apparatus with motor drive control selected based on...

2009-01-23

2011-12-27

Cutler, Albert (Department: 2622)

Television

Camera, system and detail

Still and motion modes of operation

C348S345000, C396S132000

Reexamination Certificate

active

08085311

ABSTRACT:
An optical apparatus having a recording mode that is switchable between motion picture recording and still picture recording includes an optical element, a motor that includes a rotor having a magnet, and a stator having a coil configured to provide a rotational force to the magnet, the motor being configured to drive the optical element, a position sensor configured to detect a position of the rotor of the motor, and a driving circuit configured to select, in accordance with the recording mode, first driving configured to switch an electrization to the coil in the motor in accordance with a determined time interval, or second driving configured to switch an electrization to the coil in the motor in accordance with an output of the position senor.

REFERENCES:
patent: 5136324 (1992-08-01), Tsuboi et al.
patent: 5614982 (1997-03-01), Yasukawa
patent: 5815742 (1998-09-01), Hamada et al.
patent: 6603929 (2003-08-01), Ishikawa et al.
patent: 2004/0057712 (2004-03-01), Sato et al.
patent: 2007/0279516 (2007-12-01), Ishii
patent: 09-331666 (1997-12-01), None
patent: 10-062679 (1998-03-01), None
patent: 2004-004362 (2004-01-01), None
The above reference was cited in a Mar. 24, 2011 Chinese Office Action, enclosed with an English Translation, that issued in Chinese Patent Application No. 200910001189.5.
The above reference was cited in a Oct. 4, 2011 Japanese Office Action, a copy of which is not enclosed, that issued in Japanese Patent Application No. 2008-015531.

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