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Limited TCP/IP implementation using minimal resources

  • US 7,269,660 B1
  • Filed: 05/17/2002
  • Issued: 09/11/2007
  • Est. Priority Date: 05/17/2002
  • Status: Expired due to Fees
First Claim
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1. A method for operating a server to handle a request from a client to control an appliance, said method comprising:

  • storing at said server one or more predefined input templates each associated with a connection state between said server and said client, and a plurality of response templates;

    receiving at said server a packet via a network interface from said client, said server implemented in a microcontroller of the appliance;

    determining a current connection state between said server and said client;

    comparing the received packet with said one or more predefined input templates associated with the current connection state;

    if the received packet matches said one or more predefined input templates extracting variables from the received packet;

    selecting one of said plurality of response templates based on the matched predefined input template;

    inserting said extracted variables into said selected response template;

    transmitting said selected response template from said server to said client;

    wherein said connection state is based on progress within a predefined interaction between said server and said client, said predefined interaction following a protocol fully implemented by said client but not by said server.

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