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. 24, 2012
Filed:
Feb. 19, 2009
Applicants:
Kouichi Takene, Higashikurume, JP;
Tooru Takanaka, Fuchu, JP;
Inventors:
Kouichi Takene, Higashikurume, JP;
Tooru Takanaka, Fuchu, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a visible light communication system, in which the visible light emitted from the light-emitting element is superposed with a signal in order to accomplish communication. The system has a transmitter and a receiver. The transmitter has a modulation circuit whose the demodulating mode can be changed during the communication in accordance with the state of the visible light. The receiver receives the visible light emitted from the transmitter and has a demodulation circuit that demodulates the modulated signal received from the transmitter.