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:
Apr. 19, 2011
Filed:
Feb. 24, 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 fact that devices connected on a home network are located in home, that is, at close range and therefore a user can physically access the devices within a relatively short period of time, identifying whether or not a home server for distributing the contents and a client terminal using the contents are connected to the same home network based on whether or not they can share access to the same physical medium within a short period of time. The authenticity of devices connected on a home network connected to an external network via a router is authenticated.