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:
Jul. 13, 2010
Filed:
Sep. 29, 2004
Satoshi Natsume, Kanagawa, JP;
Kazumasa Yoshikawa, Tochigi, JP;
Yasuyuki Tomita, Tochigi, JP;
Katsumi Karasawa, Tochigi, JP;
Takashi Kameyama, Kanagawa, JP;
Seiji Sato, Kanagawa, JP;
Hidekazu Suto, Tokyo, JP;
Hirotsugu Terada, Kanagawa, JP;
Satoshi Natsume, Kanagawa, JP;
Kazumasa Yoshikawa, Tochigi, JP;
Yasuyuki Tomita, Tochigi, JP;
Katsumi Karasawa, Tochigi, JP;
Takashi Kameyama, Kanagawa, JP;
Seiji Sato, Kanagawa, JP;
Hidekazu Suto, Tokyo, JP;
Hirotsugu Terada, Kanagawa, JP;
Canon Kabushiki Kaisha, , JP;
Sony Corporation, , JP;
Abstract
A camera system is disclosed which allows different types of lens apparatuses to be used in combination with a single image-taking apparatus without requiring changes of focus control signals on the side of the image-taking apparatus depending on the type of a lens apparatus mounted on the image-taking apparatus. The camera system includes an image-taking apparatus which outputs a focus control signal and a lens apparatus which includes a focus lens and is mounted on the image-taking apparatus. The lens apparatus includes a controller which produces a drive signal according to a type of focus of the lens apparatus based on the focus control signal and controls drive of the focus lens based on the drive signal.