Title:
セキュアなＶＯＩＰマルチパーティ呼出しを行うためのシステム及び方法
Document Type and Number:
Japanese Patent JP6800169
Kind Code:
B2
Abstract:
System and method for establishing secure conference calls. In one example system, a central conference call server establishes point-to-point connections with accessory devices comprising a secure element and connected to corresponding participant devices. The conference call server includes an interface to a plurality of secure elements configured to perform scrambling and unscrambling of media signals communicated to and from the accessory devices. In another example, one of the participant devices operates as the central conference call server. In other examples, participant devices communicate on a conference call via point-to-point connections between all accessory devices connected to the participant devices. The accessory devices include secure elements for decryption and encryption of media signals communicated between the accessory devices.
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Inventors:
Fel, Francois
Machete, Marco
Gautron, Laurent
Perrine, Jerome
Machete, Marco
Gautron, Laurent
Perrine, Jerome
Application Number:
JP2017561278A
Publication Date:
December 16, 2020
Filing Date:
May 27, 2016
Export Citation:
Assignee:
Nagra Vision S
International Classes:
H04L9/08; H04L12/66
Domestic Patent References:
| JP5102962A | ||||
| JP2000358023A | ||||
| JP2003250136A | ||||
| JP2015070515A |
Foreign References:
| US20070294346 | ||||
| US20080130894 | ||||
| EP2809045A1 |
Attorney, Agent or Firm:
Masayoshi Suda
Akira Murasawa
Akira Murasawa