Accuracy-Energy Configurable Sensor Processor and IoT Device for Long-Term Activity Monitoring in Rare-Event Sensing Applications

Figure 5

Event sampling illustrated and its circuit data path.

(a) Discrete-time sampling (active)

(b) Level-triggered interrupt-based sampling (passive)

(c) Event capture approach by determining the presence of next expected atomic event in error range (active + passive)

(d) Event-quantization based circuit data path