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:
Nov. 28, 1989
Filed:
Aug. 30, 1988
Applicant:
Inventors:
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ;
U.S. Cl.
CPC ...
358 98 ; 35821324 ; 35821326 ; 35821327 ; 128-6 ;
Abstract
An endoscope apparatus has a storage-time switching circuit for shortening the charge storage time of a solid state imaging device provided with a photoelectric conversion function, and the quantity of illuminating light to be projected an object is increased in association with the operation of this switching circuit. In this transient process of increasing the quantity of illuminating light, the level of video signals obtained by imaging is compared with a proper reference level. If the level of the video signals reaches the reference level, the video signals are stored in a storage circuit. Accordingly, it is possible to obtain a frozen picture which is scarcely blurred.