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. 31, 2009
Filed:
Dec. 08, 2003
Applicants:
Fumiaki Itoh, Kanagawa, JP;
Haruyuki Kitawaki, Tokyo, JP;
Inventors:
Fumiaki Itoh, Kanagawa, JP;
Haruyuki Kitawaki, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
Abstract
A router obtains a network address generated by a PC connected to a LAN, and the identification data (MAC address) unique to the PC. When the obtained network address does not match the network address (EUI-64) generated from the obtained identification data unique to the PC according to a predetermined rule, the router sends a collision message.