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:
Oct. 10, 2000
Filed:
May. 19, 1997
Applicant:
Inventors:
Hideyuki Arai, Kawasaki, JP;
Kenji Kyuma, Yokohama, JP;
Koji Tajima, Musashino, JP;
Ryunosuke Iijima, Ebina, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
348360 ; 348222 ; 348333 ;
Abstract
In a video camera apparatus having a camera main-body unit and a lens unit detachably mounted on the camera main-body unit, a state of the lens unit attached to or detached from the camera main-body unit is determined. If the lens unit is not accurately attached to the camera main-body unit, display of the picked up image is prohibited on the camera main-body unit side, and a nonmounting state of the lens is displayed by switching to a predetermined video signal pattern.