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:
Aug. 18, 2015
Filed:
May. 23, 2012
Taijiro Morihisa, Yokohama, JP;
Taijiro Morihisa, Yokohama, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An imaging device determines an in-focus position by contrast autofocus. The device includes a first optical system including a first lens and a first image sensor, a second optical system including a second lens and a second image sensor, a signal processing unit to read an image signal from at least one of the first image sensor and the second image sensor and generate an image for display, and a display unit to display the generated image. In the contrast autofocus, the signal processing unit reads a part of the image signal from the first image sensor and calculates a contrast value based on the read part of the image signal, and generates the image for display from the image signal read from the second image sensor.