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:
May. 08, 1990
Filed:
Oct. 07, 1988
Applicant:
Inventors:
Yoshiaki Hirao, Habikino, JP;
Ryuichiro Kuga, Katano, JP;
Masayuki Yoneyama, Takatsuki, JP;
Shusuke Ono, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358227 ;
Abstract
A video camera has an automatic focusing system provided with a focus detecting section for calculating and outputting a focus signal corresponding to a focus condition of an picked-up image from a video signal produced by an image pickup element. Either the image pickup element or a focusing lens in a photographic lens is oscillated back and forth of its present position, as needed, to detect an in-focus direction at the moment. The focusing lens is moved in the in-focus direction up to a position at which an optimum focus condition is obtained.