Apparatus for detection of a leading edge of a photo sensor output signal

A system for processing an analog signal output by a sensor, the system comprising:

• at least one analog-to-digital converter (ADC) configured to convert the analog output signal to a digital signal, the digital signal including a plurality of samples at a predetermined resolution;
• a trigger detection unit configured to detect whether a trigger condition is met by analyzing the digital signal;
• an event detection unit configured to detect an event based on trigger information from the trigger detection unit and to generate event information having time information included therein when the event is detected;
• a decimation unit configured to define one or more time windows based on the time information included in the event information and to perform decimation on the digital signal based on the defined one or more time windows to generate a decimated signal;
• and
• an output unit configured to output the decimated signal.