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:
Sep. 13, 2016
Filed:
Jun. 11, 2008
Hiroki Shouno, Kawasaki, JP;
Hiroki Shouno, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A communication apparatus stores a first address in association with a second address of an apparatus which is targeted to permit or restrict processing of a received packet. The communication apparatus detects first and second addresses of a transmission apparatus which is a source of a packet received through a network, and if the detected first address of the transmission apparatus is stored, then the processing of the received packet is permitted or restricted. If the detected first address of the transmission apparatus is not stored in association with the second address of the transmission apparatus and the detected second address is stored, then the communication apparatus updates the stored first address with the detected first address.