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Universal protocol for enabling a device to discover and utilize the services of another device

  • US 6,675,196 B1
  • Filed: 08/05/1999
  • Issued: 01/06/2004
  • Est. Priority Date: 01/08/1999
  • Status: Expired due to Term
First Claim
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1. A method of communicating between a client device and a server device over a communications link, the method comprising the steps of:

  • under control of a client device, initiating establishment of a link layer connection between the client device and a specified server device;

    under control of the server device, establishing a data connection with the client device over the link layer connection by transmitting a tag line message to the client device that identifies a specified data protocol with which the server device is capable of communicating, the established data connection based on the specified data protocol; and

    subsequent to the establishment of the data connection, transmitting a service-command from the client device to the server device over the data connection, the service-command identifying a particular service to be performed by the server device; and

    in response to receiving the service-command at the server device, initiating the requested service and transmitting a status-response to the client device over the data connection.

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