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Method of remotely controlling an external appliance by a mobile radio phone system providing short message service

  • US 6,393,297 B1
  • Filed: 12/09/1999
  • Issued: 05/21/2002
  • Est. Priority Date: 12/10/1998
  • Status: Expired due to Fees
First Claim
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1. A method for remotely controlling an external appliance using a mobile terminal in a mobile radio system which supports the transmission of short message service (SMS) messages, said method comprising the steps of:

  • periodically converting the operation state of said external appliance checked by said external appliance into a first short message and encoding said first short message in accordance with a predetermined format;

    transmitting said encoded first short message to a mobile terminal;

    transmitting said encoded first short message received by said mobile terminal to a message center;

    decoding said first short message received from said mobile terminal in accordance with said predetermined format and transmitting said decoded first short message to a monitoring center;

    analyzing said decoded short message by said monitoring center and thereafter generating a control command data to be transmitted to said message center;

    encoding said control command data received from said monitoring center into a second short message in accordance with the predetermined format and transmitting said encoded second short message to said mobile terminal;

    transmitting said second short message by said mobile terminal to said external appliance; and

    , decoding said second short message from said mobile terminal for controlling said external appliance responsive to said decoded second short message.

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