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Keypad apparatus with integral display indicators

  • US 6,011,961 A
  • Filed: 06/20/1996
  • Issued: 01/04/2000
  • Est. Priority Date: 10/01/1990
  • Status: Expired due to Fees
First Claim
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1. In a radiotelephone having radiotelephone circuitry operative to receive manually-generated input signals generated by way of a plurality of keypad pushbuttons integrally molded with a keypad, the keypad further having a surface positioned in tandem with a surface of the circuit board, a combination with the radiotelephone circuitry and the keypad of an assembly for visually indicating selected signals generated by the radiotelephone circuitry, said combination comprising:

  • at least one light-generating device coupled to the radiotelephone circuitry and disposed upon the surface of the circuit board, wherein the at least one light-generating device is operative to emit light responsive to a signal generated by the radiotelephone circuitry;

    a sheet of translucent material integrally molded with the keypad, extending beyond an edge surface thereof and positioned above the at least one light-generating device when the keypad is positioned upon the surface of the circuit board; and

    at least one light-diffusing indicator integrally molded with the sheet of translucent material, the least one light-diffusing indicator extending beyond a top surface of the sheet of translucent material, wherein the least one light-diffusing indicator is positioned above corresponding ones of the least one light-generating device to diffuse light generated therefrom when the keypad is positioned upon the surface of the circuit board.

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