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:
Apr. 21, 1992
Filed:
Jul. 24, 1990
Hideji Ueda, Yao, JP;
Keinosuke Kanashima, Osaka, JP;
Daisuke Oogawara, Itami, JP;
Hiroshi Yasumoto, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
An optical system of a video camera is moved to a plurality of positions having a minute predetermined interval, and detected video images of an object at the respective positions are memorized in a frame memory in turn, the video images are compared with each other, and the video image having the highest contrast is selected, thus the position at which the video image having the highest contrast is detected is recognized as a focused position, and the optical system is shifted to the position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile