Photodiode light sensor

  • US 6,359,274 B1
  • Filed: 05/07/1999
  • Issued: 03/19/2002
  • Est. Priority Date: 01/25/1999
  • Status: Expired due to Term
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First Claim
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1. A light sensor comprising:

  • a photodiode light transducer exposed to light, the exposed light transducer operative to accumulate charge in proportion to light incident over an integration period; and

    a sensor logic in communication with the exposed light transducer, the sensor logic operative to (a) determine a light integration period prior to the beginning of integration, (b) reset the charge accumulated in the exposed light transducer at the beginning of the determined light integration period, (c) measure the charge accumulated by the exposed light transducer over the determined light integration period, and (d) determine a pulse having a width based on the measured accumulated exposed light transducer charge.

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