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Method and apparatus for optically enabling a circuit component in a large scale integrated circuit

  • US 6,903,325 B2
  • Filed: 09/25/2003
  • Issued: 06/07/2005
  • Est. Priority Date: 06/30/2000
  • Status: Expired due to Fees
First Claim
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1. A large scale integrated circuit (IC) comprising:

  • a light sensing device to produce a signal in response to sensing light;

    an optic function subcircuit integrated on the IC and coupled to the light sensing device to provide an interface between the light sensing device and communications circuitry of the IC; and

    a switch integrated on the IC and connected to the light sensing device and to the optic function subcircuit to alternately enable and disable an input subcircuit of the optic function subcircuit, when light is sensed.

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