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License control at a gateway server

  • US 7,193,995 B1
  • Filed: 06/07/2000
  • Issued: 03/20/2007
  • Est. Priority Date: 06/30/1999
  • Status: Expired due to Fees
First Claim
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1. A method of controlling, at a server, access right of a message received from a terminal at the server, and where the message is processed by a protocol stack, and where the message is a data packet comprising:

  • a sender address specifying the address of the terminal,a port number specifying the application address of the instance sending the message at the terminal, anduser data including the contents of the message,and the method comprising;

    checking the right of the message to enter the server before the message is allowed to pass to the protocol stack establishing a session between the server and the terminal and for receiving the data packet within the session, and the checking of the right of the message to enter the server comprises;

    storing a number of access right licenses purchased by a licensee, and reserving a license of the licensee if the data packet arrived in a new concurrent session relating to the licensee,controlling that the number of reserved licenses does not exceed the number of purchased access right licenses,reserving a license for the session as a response to having determined existence of access right, andmonitoring the time passed since the last data packet arrived in one session, and releasing the license for the session where a predetermined time has passed since the last data packet arrived in the session.

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