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:
Nov. 10, 2015
Filed:
Mar. 11, 2011
Akira Nishihata, Amagazaki, JP;
Hiroshi Tanabe, Tokyo, JP;
Akira Nishihata, Amagazaki, JP;
Hiroshi Tanabe, Tokyo, JP;
Other;
Abstract
In a confidential-communication system that uses a first-communication network that is Internet capable of confidential communication using VPN, and a second communication network that is an audio-circuit network, a method is implemented wherein a send/receive-processing portionof a communication control devicecompletes authentication between users by implementing a P2P connection between each communication control deviceby referencing specific information that specifies another party of a P2P connection in a memory portionon the communication devicebefore confidential communication starts using VPN; a confidential-communication preparation portionof the communication control deviceexchanges via the second communication network VPN joint information required to establish a VPN link with the first communication network; and a switching portionof the communication control devicestarts confidential communication using VPN over a first-communication network.