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. 14, 2010
Filed:
Aug. 30, 2004
Takayuki Miura, Tokyo, JP;
Jouji Abe, Kanagawa, JP;
Taizo Shirai, Tokyo, JP;
Masafumi Kusakawa, Tokyo, JP;
Takayuki Miura, Tokyo, JP;
Jouji Abe, Kanagawa, JP;
Taizo Shirai, Tokyo, JP;
Masafumi Kusakawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed herein is a device authentication system capable of authenticating devices efficiently using the common key system. When a CE device requests service offerings from a service server, the service server in turn requests the CE device to be authenticated by a device authentication server. Given the request, the CE device causes the device authentication server to perform device authentication on that device and transmits the result of the device authentication to the service server. Upon receipt of the device authentication result from the CE device, the service server causes the device authentication server to check that the authentication has been performed correctly and then starts offering services to the CE device. The CE device and device authentication server share a pass phrase, and each of the two parties checks that the other party indeed retains the pass phrase for mutual authentication.