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. 28, 2010
Filed:
Mar. 12, 2004
Kazuhiko Takabayashi, Tokyo, JP;
Takehiko Nakano, Kanagawa, JP;
Yasuaki Honda, Chiba, JP;
Tatsuya Igarashi, Tokyo, JP;
Kazuhiko Takabayashi, Tokyo, JP;
Takehiko Nakano, Kanagawa, JP;
Yasuaki Honda, Chiba, JP;
Tatsuya Igarashi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
In view of the connection of a home network to an external network via a home router, using a mechanism that access from the same network is provided with a source MAC address whereas a source address field is rewritten to a MAC address of the router in the case of external access via the router, whether or not access is made from the home network is automatically identified by comparing a MAC address of a device on the other side of communication with a MAC address of the home router. It is capable of suitably managing so that a client terminal uses the contents legitimately acquired on a home server within the scope of private use allowed by the copyright law.