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Portable computer/radio power management system

  • US 5,650,669 A
  • Filed: 06/17/1996
  • Issued: 07/22/1997
  • Est. Priority Date: 06/08/1993
  • Status: Expired due to Term
First Claim
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1. An electrical power management element comprising:

  • radio transmitter means for transmitting data;

    first power supply means, rechargeable, for storing electrical energy and supplying power to the radio transmitter means;

    second power supply means, self-contained, for storing electrical energy and supplying energy to recharge the first power supply means;

    means for switching electrical current output from the second power supply means to the first power supply means so as to recharge the first power supply means;

    means for controlling the recharging of the first power supply means by performing a set of programmed steps comprising;

    detecting the transmission data by the radio transmitter means; and

    activating the switch means to switch a predetermined quantity of energy output from the second power supply means to the first power supply means to charge the first power supply means.

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