Method of videophone data transmission

Details Method of videophone data transmission Method of videophone data transmission

2006-10-03

2006-10-03

Ramakrishnaiah, Melur (Department: 2614)

Television

Two-way video and voice communication

C348S014020, C455S558000

Reexamination Certificate

active

07116349

ABSTRACT:
A method of videophone data transmission based on the PKI (Public Key Infrastructure) is executed with a videophone and a user. The method includes the steps of performing a connection procedure, performing a data download procedure and performing a disconnection procedure. While performing the connection procedure, a smart key, which stores at least one piece of user identification data, is connected to a videophone. The user identification data contains an ID code, a password and a private key of the user. While performing the data download procedure, the user identification data is encrypted and transmitted to a service server for verifying the user. Then, at least one service provided by the service server is encrypted and downloaded to the videophone. After decryption, the at least one service can be executed in the videophone. While performing a disconnection procedure, the smart key is disconnected from the videophone.

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