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.:

US 8760567 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2014

Filed:

Dec. 21, 2011
Applicant:

Toshihiro Hamamura, Yokohama, JP;

Inventor:

Toshihiro Hamamura, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
Abstract

Photographing apparatus and method to reduce auto-focus time are disclosed. A photographing apparatus is provided that includes two imaging optical systems; an imaging device that converts images of subjects formed by the imaging optical systems into respective image signals; a subject distance calculation unit that calculates subject distances between the imaging device and the subject based on two images generated by the imaging device; and an in-focus position detection unit that detects an in-focus position based on contrast evaluation values of the image signals obtained for a plurality of focusing positions, performs preparatory focusing driving by moving the focusing positions close to the in-focus position based on the calculated subject distances, and scans the focusing positions from the position close to the in-focus position to the in-focus position.


Find Patent Forward Citations

Hamamura, Toshihiro. (2014). Photographing apparatus and method to reduce auto-focus time (U.S. Patent No. 8760567). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8760567

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…