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. 24, 2011
Filed:
Oct. 05, 2010
Yasuo Kitaoka, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Hiromu Kitaura, Osaka, JP;
Ken Ichi Kasazumi, Osaka, JP;
Yasuo Kitaoka, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Hiromu Kitaura, Osaka, JP;
Ken ichi Kasazumi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An image display device and an image display system which can establish visible light communication without interfering with an image displayed at a predetermined frame rate are provided. A controller controls a spatial light modulator in accordance with an image signal to display the image, and also modulates an intensity of a visible light output from a backlight with a frequency higher than the frame rate of the image signal to have the visible light output from the backlight carry additional information. A light receiver receives the visible light and demodulates to extract the additional information. An additional information generator outputs the additional information.