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Advanced sleep timer

  • US 7,437,578 B2
  • Filed: 07/13/2005
  • Issued: 10/14/2008
  • Est. Priority Date: 07/13/2004
  • Status: Expired due to Fees
First Claim
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1. A sleep timer for changing a power state of a device related to a sleep interval, comprising:

  • a detector that detects user interactions with the device while the device is in an active state;

    a memory coupled to the detector that stores a user interaction data history;

    an evaluation unit coupled to the memory that performs a statistical evaluation of the stored user interaction data history;

    an input coupled to the evaluation unit that receives instructions, the instructions comprise sleep timer parameters;

    a sleep interval setting unit that adjusts the sleep interval based on the stored user interaction data history;

    a timer coupled to the memory and to the detector that determines a power state changing point in time based on the sleep interval; and

    a power unit coupled to the timer that initiates a power state change of the device.

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