Method for preventing illegal use of mobile communication terminal
First Claim
Patent Images
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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Accused Products
Abstract
A method for preventing an illegal use of a mobile communication terminal includes the steps of: transmitting a short message service (SMS) message to a lost terminal when a user requests a phone-locking service; and analyzing the received SMS message to set a phone-locking state for the lost terminal. When a terminal is lost, an SMS message containing a ciphered string is transmitted to the lost terminal to set a phone-locking or forcefully turn off an LCD power, so that the lost terminal can be prevented from illegally using by a third party or a stranger and user'"'"'s personal information can be effectively prevented from leaking.
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Citations
17 Claims
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1. A method for preventing use of a mobile communication terminal comprising:
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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; andconverting 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. - View Dependent Claims (2, 3)
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4. A method for preventing use of a mobile communication terminal comprising:
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transmitting an SMS message to the mobile communication terminal from an exchange when a phone-locking service is requested; receiving the SMS message at the mobile communication terminal; analyzing the received SMS message and turning off a display power by the mobile communication terminal; and storing an indication to keep the display power off while maintaining power to remaining portions of the mobile communication terminal; wherein the display power off state setting comprises; controlling a GPIO port of a MSM 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. - View Dependent Claims (5, 6)
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7. A method for preventing use of a mobile communication terminal comprising:
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a first step in which when a user requests a phone-locking service, an SMS message is transmitted to the mobile communication terminal; and a second step in which the received SMS message is analyzed to set a phone lock function by a display power off function, wherein the display power off setting comprises; controlling a general purpose input/output (GPIO) port of a mobile station modem (MSM) and cutting off power to the display, and converting a data variable of a memory to prevent the power to the display when power to the terminal is subsequently provided. - View Dependent Claims (8, 9, 10, 11)
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12. A method for preventing use of a mobile communication terminal comprising:
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receiving an SMS message from a base station; checking whether a ciphered string exists in the received SMS message; discriminating a type of the ciphered string if a ciphered string exists in the SMS message, and processing a general SMS message if a ciphered string does not exist in the received SMS message; and setting a phone-locking state or turning off a display power off state for the mobile communication terminal according to the discriminated ciphered string type, wherein the display power off state setting comprises; cutting off power applied to the display, and controlling a GPIO port of an MSM; 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. - View Dependent Claims (13, 14)
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15. An apparatus for preventing use of a mobile communication terminal, comprising:
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receiving means for receiving an SMS message from a base station; checking means for checking whether a ciphered string exists in a received SMS message; discriminating means for discriminating a type of the ciphered string if a ciphered string exists in the SMS message, and processing a general SMS message if a ciphered string does not exist in the received SMS message; setting means for setting a phone-locking state using a display power off state for the mobile communication terminal according to the discriminated ciphered string type; and storing means for storing an indication to keep the display power off while maintaining power to remaining portion of the mobile communication terminal in the display power off state, wherein the setting means includes control means for controlling a GPIO port of a MSM. - View Dependent Claims (16, 17)
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Specification