Patent ID: 7814559
Filing Date: 2010-10-12
Classification: G06Q,H04N

Abstract:
1. A teleconference system comprising: an on-site server, having a processor, provided in a site to control a device in the site; a management server that connects a plurality of sites to generate a shared workspace, the shared workspace managing a task to realize collaboration between a plurality of the on-site servers; and a user database that stores user information to identify a user and authenticates user information transferred from the on-site server based on the user information in the user database, wherein: the on-site server registers access control information that limits a user who is allowed to use the shared workspace, in the shared workspace, the user database transfers to the on-site server, certificate data that allows an access to the management server, if the authentication is successful, the on-site server logs onto the management server with the certificate data and sends the user information to the management server when the shared workspace is selected by a user of the on-site server, the management server determines whether or not the user of the on-site server is an authenticated user of the shared workspace by referring to the access control information and the sent user information, and transmits a list of file references that is retained by the shared workspace to the on-site server when the user of the on-site server is determined to be the authenticated user of the shared workspace, when the management server requests a generation of a session key from the on-site server, the on-site server generates the session key for connecting to the on-site server and registers the session key in the shared workspace to be connected by another on-site server, and the session key is transferred from the management server to the another on-site server when the another on-site server is to be connected to the on-site server in order to utilize the shared workspace generated by the management server.