Patent ID: 11931574
Assignee: NEURODE PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 8:
9. A system, comprising:
a headset configured to be worn on a forehead of a user, the headset comprising:
a first optical sensor including a first light emitter and at least two light detectors,
a second optical sensor including a second light emitter and at least two light detectors, and
the first optical sensor and the second optical sensor configured to detect a first signal indicative of a brain blood oxygenation of the user corresponding to an activity data, and detect a second signal indicative of a scalp blood oxygenation of the user; and

a controller communicatively coupled to the first optical sensor, and the second optical sensor, the controller configured to:
receive the first signal and the second signal and determine the blood oxygenation level of the user based on the first signal, and the scalp oxygenation level of the user based on the second signal, and
modulate the light emitters of each of the first optical sensor and the second optical sensor at a flashing frequency to create a lock-in-amplifier effect to improve the signal to noise ratio (SNR) of respective reflected light signals detected by at least one of the first or the second light detector.