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:
Oct. 07, 1986
Filed:
May. 31, 1983
Takaaki Hashimoto, Noda, JP;
Kazushi Minagawa, Yokohama, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
A color video camera white balance control apparatus including light sensors for sensing the color temperature of a light illuminating an object. The apparatus has an automatic follow-up mode for automatically effecting the white balance adjustment by controlling the gains of the color signal amplifiers of the color video camera in accordance with the detection outputs of the light sensors and a standard mode for controlling the gains of the amplifiers in accordance with preset values irrespective of the output values of the lights sensors, and also the apparatus is so designed that the standard mode is selected automatically or manually upon indication of a warning when the luminous intensity of the illuminating light becomes lower than a fixed level (or when the light sensor output values become lower than a certain value).