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Controller arrangement

  • US 20060208821A1
  • Filed: 01/31/2006
  • Published: 09/21/2006
  • Est. Priority Date: 11/09/2004
  • Status: Abandoned Application
First Claim
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1. A control circuit, comprising:

  • a single input terminal for receiving digital control signals and analog control signals;

    said digital signals being in a first digital state when below a first level, and being in a second digital state when above a second level;

    said analog signals being within a range that is greater than said first level and less than said second level;

    a comparator circuit coupled to said single input terminal for providing a first output when the level at said single input terminal is below said first level or when the level at said single input terminal is above said second level;

    said comparator circuit providing a second output when the level at said single input terminal is between said first level and said second level;

    whereby said first output indicates that a signal at said single input terminal is a digital signal and said second output indicates that a signal at said single input terminal is an analog signal.

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