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:
Jul. 01, 2014
Filed:
Mar. 01, 2010
Atsushi Nagata, Tokyo, JP;
Atsushi Nagata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
For establishing a VPN connection in the call-back type, a VPN server establishes an always-on connection through a unique protocol different from the electronic mail delivery system. A client generates a client authentication data used for the client authentication implemented by the VPN server, and establishes the relay server through the unique protocol to transmit the client authentication data. The relay server device relays the client authentication data to the VPN server through the unique protocol. The VPN server implements the client authentication based on the relayed data. The VPN server establishes the VPN connection with the client based on the result of the authentication.