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Electronic apparatus having a power saving mode and method for controlling the same

  • US 20020190962A1
  • Filed: 05/17/2002
  • Published: 12/19/2002
  • Est. Priority Date: 05/17/2001
  • Status: Abandoned Application
First Claim
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1. An electronic apparatus, comprising:

  • a display device including an input device;

    a timer that calculates a specified suspend time and sampling time;

    a counter that counts a specified number of key inputs;

    a power control device that controls a power supply;

    a judging device that judges at each of the sampling time whether a key input inputted through the input device is valid or invalid; and

    a control device that controls the input device, the timer, the counter, the power control device and the judging device, wherein, based on judgment results by the judging device, the control device counts valid inputs with the counter when the key inputs inputted through the input device are judged to be valid, counts invalid inputs with the counter when the key inputs inputted through the input device are judged to be invalid, and compares the number of the valid key inputs with the number of the invalid key inputs to make a determination, wherein the control device further resets and restarts the timer that measures the specified suspend time when a ratio of the number of the valid inputs to the number of the invalid inputs is less than a specified threshold value, and controls the power control device to start a power saving mode when a measured result of the timer reaches the suspend time.

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