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:
Jan. 20, 2015
Filed:
Apr. 18, 2012
Tatsuya Nakajima, Yokohama, JP;
Tatsuya Nakajima, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A temperature estimating apparatus, which is provided for a backlight having a plurality of light source blocks each having one light source or a plurality of light sources so that light emission of the light source of each of the light source blocks can be regulated independently, comprises an acquiring unit which acquires a luminance of the light source for each of the light source blocks; a temperature sensor which measures a temperature of at least any one of an internal and external temperature of a casing of the image display apparatus having the backlight; and an estimating unit which estimates a temperature of the light source for each of the light source blocks on the basis of a measured value obtained by the temperature sensor and a luminance value of the light source of each of the light source blocks acquired by the acquiring unit.