US 12,446,787 B2
Adaptive light sensor
Assim Boukhayma, Neuchâtel (CH); and Antonino Caizzone, Milvignes (CH)
Assigned to Senbiosys, Neuchatel (CH)
Filed by Senbiosys, Neuchâtel (CH)
Filed on Sep. 3, 2021, as Appl. No. 17/466,557.
Claims priority of provisional application 63/075,104, filed on Sep. 5, 2020.
Prior Publication US 2022/0071500 A1, Mar. 10, 2022
Int. Cl. A61B 5/024 (2006.01)
CPC A61B 5/02416 (2013.01) 20 Claims
OG exemplary drawing
 
1. A sensing system, comprising:
a set of light-to-digital converters in which each of the light-to-digital converters includes an array of pixels and an analog to digital converter for digitizing the output from the array of pixels;
switches to connect each of the light-to-digital converters to a power supply to selectively activate each of the light-to-digital converters, and
a control unit for analyzing the output from the light-to-digital converters to determine photoplethysmography (PPG) information,
wherein the control unit detects light from a user via the set of light-to-digital converters and adapts system resolution and power consumption in response to a signal-to-background ratio by selectively powering each of the light-to-digital converters via the switches and the power supply to selectively activate each of the light-to-digital converters.