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Power saving of a portable computer using human sensing device

  • US 6,418,536 B1
  • Filed: 04/07/1999
  • Issued: 07/09/2002
  • Est. Priority Date: 04/07/1998
  • Status: Expired due to Term
First Claim
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1. A portable computer having a panel display, comprising:

  • a sensor for sensing a computer user within a predetermined sensing range, said sensor being mounted in the housing of the panel display facing the computer user when said panel display is opened, to produce a first signal representative of absence of the user within the sensing range; and

    a controller in response to said first signal of said sensor to produce a control signal which allows the supply power directed to the panel display to be interrupted, wherein said controller determines whether a user monitoring function option associated with operation of said sensor is enabled, and inactivates said sensor when the user monitoring function option is not enabled.

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