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System, method, and apparatus for communicating information encoded in a light -based signal using a fob

  • US 20020145043A1
  • Filed: 03/21/2002
  • Published: 10/10/2002
  • Est. Priority Date: 11/20/2000
  • Status: Active Grant
First Claim
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1. A method of communicating transmission information data to a light-based data receiving device with a fob device, the method comprising:

  • encoding the transmission information data into a bar code format;

    generating a signal from the bar code format to simulate a reflection of a scanning beam being moved across a static visual image of the bar code format; and

    actively transmitting the signal as light pulses from a fob device.

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