×

Communication system having plural terminals and method for controlling terminal in communication system

  • US 8,621,219 B2
  • Filed: 04/21/2011
  • Issued: 12/31/2013
  • Est. Priority Date: 04/21/2010
  • Status: Expired due to Fees
First Claim
Patent Images

1. A terminal control method of a terminal management server in a communication system, comprising:

  • receiving, from a first terminal, an authorization assignment request message for assigning, from the first terminal to a second terminal, control authorization for controlling a third terminal that executes a function in response to an external command;

    checking the second terminal in response to receipt of the authorization assignment request message;

    generating a one-time secret key as a result of the checking;

    transmitting the one-time secret key to the second terminal;

    receiving, from the second terminal, a remote control request message for controlling the third terminal with a second key;

    determining whether the second key received with the remote control request message is a valid according to the one-time secret key; and

    sending, when the second key is determined to be valid, the remote control request message to the third terminal,wherein sending the remote control request message comprises;

    transmitting, when the second key is determined to be invalid, a remote control confirm request message to the first terminal for confirming whether the first terminal attempts to assign the authorization for controlling the third terminal;

    regenerating, when a response message is received in response to the remote control confirm request message, the one-time secret key; and

    transmitting the regenerated one-time secret key to the second terminal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×