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Recharging apparatus

  • US 8,228,194 B2
  • Filed: 10/28/2004
  • Issued: 07/24/2012
  • Est. Priority Date: 10/28/2004
  • Status: Active Grant
First Claim
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1. A remote station for receipt of ambient energy from the environment and energizing energy storage devices of objects of interest comprising:

  • at least one antenna;

    circuitry for converting said ambient energy into DC energy for energizing said energy storage devices;

    circuitry for automatic search tuning to tune said antenna; and

    means for measuring the voltage of said DC energy to determine the energy harvesting effectiveness of said remote station;

    wherein the means for measuring is configured to measure a first parameter associated with the DC energy and a first tuning frequency and a second parameter associated with the DC energy and a second tuning frequency, and wherein the circuitry for automatic search tuning is configured to tune the antenna to the first tuning frequency based on the first parameter and the second parameter.

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