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Method and Apparatus for Controlling a Dispenser and Detecting a User

  • US 20070158359A1
  • Filed: 12/04/2006
  • Published: 07/12/2007
  • Est. Priority Date: 12/08/2005
  • Status: Active Grant
First Claim
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1. An automatic product dispenser comprising:

  • a housing adapted to receive a dispensable product;

    an electrically-powered dispensing mechanism adapted to dispense the product from the dispenser; and

    a proximity detector operable to;

    generate a first digital signal which changes at a first rate responsive to a user proximate the dispenser;

    convert the first digital signal to a second digital signal which changes at a second rate responsive to the user;

    difference the signals; and

    trigger operation of the dispensing mechanism when the difference attains a threshold.

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