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Method for preventing illegal use of mobile communication terminal

  • US 7,099,699 B2
  • Filed: 11/13/2001
  • Issued: 08/29/2006
  • Est. Priority Date: 11/14/2000
  • Status: Active Grant
First Claim
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1. A method for preventing use of a mobile communication terminal comprising:

  • transmitting a short message service (SMS) message to the mobile communication terminal when a user requests a phone-locking service;

    receiving the SMS message at the mobile communication terminal; and

    analyzing the received SMS message to set a phone-locking state for the mobile communication terminal by turning off a display power;

    wherein the display power off state setting comprises;

    controlling a GPIO port of an mobile station modem and cutting off power applied to the display; and

    converting a data variable of a memory as the applied power is cut off to prevent the power to the display when power to the terminal is subsequently provided.

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