CPC G01J 1/44 (2013.01) | 20 Claims |
1. A device, comprising:
a flicker detector circuit configured to detect light radiation signals from a light source and generate successive samples representing the light radiation signals; and
a processor coupled to the flicker detector circuit, the processor comprising a phase lock loop (PLL) circuit, the processor configured to:
determine a frequency of the light radiation signals using the PLL circuit and the successive samples generated by the flicker detector circuit, and
generate a periodic digital signal synchronized in phase with the light radiation signals and having a frequency equal to the frequency of the light radiation signals.
|