Focus detection apparatus and control method thereof

Details Focus detection apparatus and control method thereof Focus detection apparatus and control method thereof

2005-11-29

2008-10-21

Koval, Melissa Jan (Department: 2862)

Photography

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

Optical detail with photoelement system

C396S121000, C396S123000, C396S125000, C348S345000, C348S350000, C348S353000, C348S354000, C348S356000

Reexamination Certificate

active

07440690

ABSTRACT:
An output from an auto focus sensor is converted into a digital signal by an A/D converting section, and an output from the A/C converting section is stored in a memory section. Further, a second AF arithmetic section is used to concurrently execute a plurality of focus detection arithmetic operations based on data in the memory section.

REFERENCES:
patent: 6430370 (2002-08-01), Nonaka
patent: 6606322 (2003-08-01), Mitchem et al.
patent: 6822801 (2004-11-01), Yahagi et al.
patent: 2002/0097995 (2002-07-01), Nakata et al.
patent: 2004/0140981 (2004-07-01), Clark
patent: 2004/0202461 (2004-10-01), Nakahara

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