The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2012
Filed:
Jul. 10, 2009
Applicant:
Hideharu Ono, Fujisawa, JP;
Inventor:
Hideharu Ono, Fujisawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); H04N 5/238 (2006.01);
U.S. Cl.
CPC ...
Abstract
Even when a point light source is present in a subject or a normal subject is erroneously determined as a point light source in determination of the presence or absence of a point light source, the following is implemented: the driving time of a focus lens is shortened and quick focusing operation is provided. The optimum focus lens stroke is computed based on information on a high-brightness region and a low-brightness region in an image. Then the focus lens is driven while the focus lens stroke is continuously varied based on the amount of change in high-brightness region and low-brightness region.