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Use of one LED to represent various utility rates and system status by varying frequency and/or duty cycle of LED

  • US 8,421,647 B2
  • Filed: 12/10/2009
  • Issued: 04/16/2013
  • Est. Priority Date: 12/10/2009
  • Status: Active Grant
First Claim
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1. A demand supply system, comprising:

  • a data transmitter associated with a utility, wherein the data transmitter emits data;

    an appliance in communication with the data transmitter, the appliance comprising a demand/supply module adapted to receive the data to operate a single light source in response thereto,wherein the demand/supply module has at least three distinct modes and is operative in only one of the three modes at any one time, the module cycles through a first mode indicative of cost of energy use, a second mode indicative of signal strength, and a third mode indicative of module status,wherein the single light source is operatively associated with and included with the demand/supply module, andwherein operation of the single light source conveys information relating to at least two of cost of energy use, signal strength, and module status.

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