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:
Sep. 09, 2003
Filed:
Oct. 02, 1998
Olympus Optical, Co., Tokyo, JP;
Abstract
In an automatic exposure control apparatus, image-capturing is performed at a double exposure time TI (I=1, 2, . . . ) and a single exposure time; a CCD output therein produced is applied with a CCD drive signal to perform an integrating operation for a signal in an AE area by using an integration circuit, and then outputs integration values 2EI+SI and EI′+SI′ to an exposure operation/control circuit; and the exposure operation/control circuit then performs an AE operation to receive 2EI+SI−(EI′+SI′)≈EI and compares the value to a target value for determining exposure conditions, and upon receipt of a shutter trigger, it uses an AE operation value containing almost no smear component to determine an appropriate exposure condition even in actual image-recording. According to the apparatus herein stated, exposure errors resulting from smears can be prevented.