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:
Mar. 09, 2010
Filed:
Jun. 13, 2003
Toshiyasu Nakao, Tokyo, JP;
Atsushi Kashitani, Tokyo, JP;
Keisuke Hayakawa, Tokyo, JP;
Mie Takahashi, Tokyo, JP;
Toshiyasu Nakao, Tokyo, JP;
Atsushi Kashitani, Tokyo, JP;
Keisuke Hayakawa, Tokyo, JP;
Mie Takahashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a communications network where first and second communication terminals are interconnected via a common communication medium such as a local area network, the terminals jointly establish an infrared light private communication link if they are brought close to each other. The first and second terminals communicate their network addresses to each other either via the local area network or via the private communication link, and establish a session between the communicated network addresses via the local area network if the strength of the infrared-light private communication link at the receiving end is higher than a decision threshold.