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System and method for maintaining presence and communicating over a computer network using the HTTP protocol

  • US 7,631,087 B2
  • Filed: 01/04/2007
  • Issued: 12/08/2009
  • Est. Priority Date: 11/17/1999
  • Status: Expired due to Fees
First Claim
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1. A method for providing online presence of a user using a client device on a computer network, the method comprising:

  • receiving an HTTP request initiated by the user using the client device at a chat server to establish an online presence for the user to communicate with other users;

    establishing and maintaining a socket and an HTTP connection between the client device and the chat server through a firewall;

    adding a socket file descriptor of the HTTP connection for the user using the client device to a table of the chat server;

    maintaining online presence of the user by determining the status of the socket of the HTTP connection for the user; and

    wherein the socket being open serves to indicate the online presence of the user.

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