Abstract: A method and apparatus for determining a color and brightness of an LED, when the LED is biased with a current pulse. The apparatus includes a sensor having a plurality of filters and an output probe connected to the sensor, the output probe providing a color output and a brightness output in a single signal. The sensor may further include an input probe connected to the sensor providing power and a ground probe connected to the sensor providing a grounded connection to the sensor. The plurality of filters in the sensor are preferably configured in a matrix array of color receptors having different colors. The method of this invention utilizes pulsing/dynamic sampling to determine a frequency and/or a brightness of the LED output.

Abstract: A method and apparatus for determining a presence, color and/or brightness of a plurality of components in a printed circuit board, where the components are biased either with constant current or with a current pulse.

Abstract: A method and apparatus for determining a presence, color and/or brightness of a plurality of components in a printed circuit board, where the components are biased either with constant current or with a current pulse.