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Power saving method of portable internet device and portable internet device thereof, and instant messaging system using the same

  • US 20100042856A1
  • Filed: 12/30/2008
  • Published: 02/18/2010
  • Est. Priority Date: 08/12/2008
  • Status: Active Grant
First Claim
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1. A power saving method for sending and receiving instant messages from a portable Internet device using an instant messaging program comprising:

  • monitoring a display unit of the portable Internet device;

    controlling the instant messaging program to enter into a first mode, when the display unit is in a view state; and

    controlling the instant messaging program to enter into a second mode, when the display unit is in a non-view state;

    wherein the message update frequency of the instant messaging program in the second mode is lower than the message update frequency in the first mode.

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