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:
Jun. 26, 2012
Filed:
Aug. 27, 2009
Yuki Endo, Yokohama, JP;
Toshiyuki Tanaka, Yokohama, JP;
Toshihiro Hamamura, Yokohama, JP;
Tsuyoshi Moriya, Yokohama, JP;
Naoki Takafuji, Yokohama, JP;
Yuki Endo, Yokohama, JP;
Toshiyuki Tanaka, Yokohama, JP;
Toshihiro Hamamura, Yokohama, JP;
Tsuyoshi Moriya, Yokohama, JP;
Naoki Takafuji, Yokohama, JP;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Provided are a focusing position determining apparatus, an imaging apparatus, and a focusing position determining method, the method including setting an aperture to a first aperture value; driving a focus lens through a first range of positions as a first drive; during the first drive, obtaining images periodically, and calculating a first sampling of contrast values from the obtained images; calculating a first focus position from the first sampling of contrast values; setting the aperture to a second aperture value; driving a focus lens through a second range of positions as a second drive, the second range of positions being based on the first focus position; during the second drive, obtaining images periodically, and calculating a second sampling of contrast values from the obtained images; calculating a focusing position from the second sampling of contrast values; and driving the focus lens to the calculated focusing position.