×

Information terminal and information leakage prevention method

  • US 8,978,156 B2
  • Filed: 04/19/2012
  • Issued: 03/10/2015
  • Est. Priority Date: 04/19/2011
  • Status: Active Grant
First Claim
Patent Images

1. An information terminal comprising:

  • a nonvolatile storage unit configured to store a flag that indicates whether or not said information terminal is in a state in which information leakage should be prevented;

    a start control unit configured to start said information terminal and manage a power source of said information terminal;

    a plurality of devices which operate upon starting of said information terminal;

    a device operation control unit configured to control an operation of at least one device of said plurality of devices;

    a data storage unit configured to store data; and

    a data recording unit configured to record and delete data on said data storage unit, wherein;

    said data recording unit is configured to;

    check the flag stored in said nonvolatile storage unit after said information terminal is automatically started from a non-operating state of said information terminal or automatically shut-down and restarted from an operating state of said information terminal, andwhen the checked flag indicates the state in which information leakage should be prevented, delete said data on said data storage unit,said device operation control unit is configured to, while deleting said data, lower a level of or prevent at least one operation of;

    displaying an image on a display device;

    lightening a backlight;

    lightening an LED disposed on a body of said information terminal;

    rotating a blast fan;

    emitting sound from a speaker;

    an external input and output device that is connected to an external input and output port or an external input and output slot; and

    receiving user input operation,so as not to notify a person around said information terminal of deletion of said data, when the flag stored in said nonvolatile storage unit indicates the state in which information leakage should be prevented,the information terminal further comprises a communication unit configured to receive a command indicating that said information terminal should be put in a state in which information leakage should be prevented,said start control unit is configured to;

    when said communication unit receives said command during a period that said information terminal is operating, automatically shut-down and restart said information terminal; and

    when said communication unit receives said command during a period that said information terminal is not operating, automatically start said information terminal, and said data recording unit is configured to;

    when said communication unit receives said command during a period that said information terminal is operating, check the flag stored in said nonvolatile storage unit after said information terminal is automatically shut-down and restarted; and

    when said communication unit receives said command during a period that said information terminal is not operating, check the flag stored in said nonvolatile storage unit after said information terminal is automatically started.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×