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. 07, 1992
Filed:
Jul. 18, 1990
Fumihito Arai, Tokyo, JP;
Yoshihiko Mori, Tokyo, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An exposure control apparatus receives a video signal from a scene pick-up image sensor and performs a divided brightness measuring for an image free. In accordance with the brightness distribution or a change amount of a scene obtained by the divided brightness measuring, the adjustment speed for a diaphragm is switched. In another embodiment, a scene brightness value for use as the exposure control is corrected to thereby obtain a smooth exposure control for continuous scenes. Scene pick-up by panning is detected by a built-in acceleration sensor in a video camera. Therefore, if the video camera is moved abruptly, then the exposure control is made slowly.