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.

Date of Patent:
Nov. 04, 2008

Filed:

Oct. 09, 2002
Applicants:

Atsushi Oda, Tokyo, JP;

Kazuhiko Hayashi, Tokyo, JP;

Satoru Toguchi, Tokyo, JP;

Inventors:

Atsushi Oda, Tokyo, JP;

Kazuhiko Hayashi, Tokyo, JP;

Satoru Toguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2006.01); H04B 10/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication system includes: at least one light-emitting device for emitting a light; and at least one light-receiving device for receiving the light emitted from the at least one light-emitting device. The light-emitting device further includes: at least one driver unit for generating a modified current based on an externally entered information signal; and at least one light-emitting unit operatively and functionally coupled to the at least one driver unit for receiving the modified current and emitting a modified signal light including any information based on the modified current. The at least one light-emitting unit includes at least one electroluminescence element.


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