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Sensing device with inductive charging

  • US 20050017958A1
  • Filed: 08/17/2004
  • Published: 01/27/2005
  • Est. Priority Date: 05/25/1999
  • Status: Active Grant
First Claim
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1. A sensing device for sensing coded data disposed on or in a surface, the sensing device including:

  • operative circuitry including sensing means for sensing the coded data and processing means for processing the sensed coded data;

    an internal power supply for supplying electrical power to the operative circuitry; and

    a first inductor connected, or connectable, to the internal power supply to enable charging thereof whilst the first inductor is electromagnetically coupled with an external electromagnetic field generator.

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