Patent ID: 11903680
Assignee: FACENSE LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A system configured to grant passage through a doorway based on health state, comprising:
a wearable device comprising: a first sensor configured to measure a signal indicative of a photoplethysmogram signal (PPG signal) of a user, and a second sensor configured to measure a temperature of the user, and
a computer configured to:
receive current measurements of the user, taken with the wearable device;
receive baseline measurements of the user, taken with the wearable device on one or more earlier days;
calculate a health score based on a difference between the baseline measurements and the current measurements;
calculate an extent of similarity between characteristics of the PPG signal in the current measurements and characteristics of the PPG signal in the baseline measurements; and
transmit an authorization signal responsive to the health score reaching a first threshold and the extent of the similarity reaching a second threshold; whereby transmission of the authorization signal indicates a health state of the user permits passage through the doorway.