Television – Camera – system and detail – Optics
Reexamination Certificate
2005-02-18
2008-12-30
Villecco, John M (Department: 2622)
Television
Camera, system and detail
Optics
C348S348000, C396S080000, C396S139000
Reexamination Certificate
active
07471330
ABSTRACT:
A lens controlling apparatus is disclosed, which is capable of preventing an execution of irrelevant AF control in a combination of TV-AF method and an AF method other than the TV-AF method. The lens controlling apparatus comprises: a first signal generating section generating a first signal showing a contrast state of an object image on the basis of a predetermined frequency component of a signal; a second signal generating section generating a second signal by a focus detecting method different from that in the first signal generating section; and a controller, which selects one of a first focus control operation based on the first signal and a second focus control operation based on the second signal in accordance with each change amount of the first and second signals.
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European Office Action date Jul. 17, 2006 issued in European Patent Application No. 05 003 414.9-1524.
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Villecco John M
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