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KEYBOARD WITH LIGHTING CIRCUIT

  • US 20090040747A1
  • Filed: 11/29/2007
  • Published: 02/12/2009
  • Est. Priority Date: 08/09/2007
  • Status: Abandoned Application
First Claim
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1. A keyboard comprising:

  • at least one lighting circuit that comprises;

    a power source;

    at least one light emitting diode (LED) with the cathode grounded; and

    a regulating resistor having an adjust terminal connected to the power source and a connection terminal connected to the anode of the LED; and

    a keypad mounted on the keyboard and illuminated by the lighting circuit, wherein the lighting circuit is arranged in the keypad.

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