Wearable biosensor devices with adaptive power consumption

Patent metadata

Field	Value
Publication number	US-12364400-B2
Application number	US-202117457504-A
Country	US
Kind code	B2
Filing date	Dec 3, 2021
Priority date	Dec 10, 2020
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

One disclosed example method includes receiving sensor data from a biosensor; determining an event using a first analysis based on the sensor data, the first analysis having a first power cost; determining to perform a second analysis based on the event; in response to determining to perform the second analysis, performing the second analysis based on the sensor data, the second analysis having a second power cost greater than the first power cost; and wirelessly transmitting results of the second analysis to a remote device.

First claim

That which is claimed is:

1. A method comprising:
receiving sensor data from a biosensor;
determining an event using a first analysis based on the sensor data, the first analysis having a first computational complexity and a first power cost;
determining to perform a second analysis based on the event;
in response to determining to perform the second analysis, performing the second analysis based on second sensor data received from the biosensor, the second analysis having a second computational complexity greater than the first computational complexity and having a second power cost greater than the first power cost; and
wirelessly transmitting results of the second analysis to a remote device.

2. The method of claim 1 , further comprising:
determining an urgency of the results of the second analysis;
in response to determining that the urgency meets or exceeds a threshold, activating a radio subsystem; and
wherein the wirelessly transmitting occurs in response to determining the urgency meets or exceeds the threshold, the wirelessly transmitting using the radio subsystem.

3. The method of claim 2 , further comprising deactivating the radio subsystem after the wirelessly transmitting the results to the remote device completes.

4. The method of claim 2 , wherein the radio subsystem comprises a Bluetooth transceiver.

5. The method of claim 1 , further comprising:
in response to determining to perform the second analysis:
changing a mode of operation of the biosensor from a first resolution to a second resolution, the second resolution higher than the first resolution;
receiving high-resolution sensor data; and
wherein the second sensor data comprises the high-resolution sensor data.

6. The method of claim 5 , further comprising, after completing the second analysis, changing the mode of operation of the biosensor to the first resolution from the second resolution.

7. The method of claim 6 , wherein the first resolution comprises a first sampling rate and the second resolution comprises a second sampling rate, the second sampling rate higher than the first sampling rate.

8. The method of claim 1 , wherein the biosensor comprises a temperature sensor, a pulse sensor, an SpO 2 sensor, a blood pressure sensor, or an accelerometer.

9. The method of claim 1 , further comprising storing the first or second sensor data.

10. A device comprising:
a biosensor;
a radio subsystem;
a non-transitory computer-readable medium; and
a processor communicatively coupled to the biosensor, the radio subsystem, and the non-transitory computer-readable medium, the processor configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to:
receive first sensor data from a biosensor;
determine an event using a first analysis based on the sensor data, the first analysis having a first computational complexity and a first power cost;
determine to perform a second analysis based on the event;
in response to a determination to perform the second analysis, perform the second analysis based on second sensor data received from the biosensor, the second analysis having a second computational complexity greater than the first computational complexity and having a second power cost greater than the first power cost; and
wirelessly transmit, using the radio subsystem, results of the second analysis to a remote device.

11. The device of claim 10 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to:
determine an urgency of the results of the second analysis;
in response to a determination that the urgency meets or exceeds a threshold, activate the radio subsystem; and
wherein the wirelessly transmitting occurs in response to determining the urgency meets or exceeds the threshold, the wireless transmitting using the radio subsystem.

12. The device of claim 11 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to deactivate the radio subsystem after the wirelessly transmitting the results to the remote device completes.

13. The device of any of claim 11 , wherein the radio subsystem comprises a Bluetooth transceiver.

14. The device of claim 10 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to:
in response to a determination to perform the second analysis:
change a mode of operation of the biosensor from a first resolution to a second resolution, the second resolution higher than the first resolution;
receive high-resolution sensor data; and
wherein the second sensor data comprises the high-resolution sensor data.

15. The device of claim 14 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to, after completing the second analysis, change the mode of operation of the biosensor to the first resolution from the second resolution.

16. The device of claim 15 , wherein the first resolution comprises a first sampling rate and the second resolution comprises a second sampling rate, the second sampling rate higher than the first sampling rate.

17. The device of claim 10 , wherein the biosensor comprises a temperature sensor, a pulse sensor, an SpO 2 sensor, a blood pressure sensor, or an accelerometer.

18. The device of claim 10 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to store the sensor data in the non-transitory computer-readable medium.

19. A non-transitory computer-readable medium comprising processor executable instructions configured to cause a processor to:
receive first sensor data from a biosensor;
determine an event using a first analysis based on the first sensor data, the first analysis having a first computational complexity and a first power cost;
determine to perform a second analysis based on the event;
in response to a determination to perform the second analysis, perform the second analysis based on second sensor data received from the biosensor, the second analysis having a second computational complexity greater than the first computational complexity and having a second power cost greater than the first power cost; and
wirelessly transmit results of the second analysis to a remote device.

20. The non-transitory computer-readable medium of claim 19 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to:
determine an urgency of the results of the second analysis;
in response to a determination that the urgency meets or exceeds a threshold, activate a radio subsystem; and
wherein the wirelessly transmitting occurs in response to determining the urgency meets or exceeds the threshold, the wireless transmitting using the radio subsystem.

21. The non-transitory computer-readable medium of claim 20 , wherein the processor is further configured to execute processor-executable instructions stored in the non-transitory computer-readable medium to deactivate the radio subsystem after the wirelessly transmitting the results to the remote device completes.

22. The non-transitory computer-readable medium of claim 20 , wherein the radio subsystem comp

Assignees

• Verily Life Sciences Llc

Inventors

• Nicholson Charles
• He David
• Schiffer Brian

Classifications

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• G06F1/3206 Primary

  Monitoring of events, devices or parameters that trigger a change in power modality · CPC title

• A61B5/6823

  Trunk, e.g., chest, back, abdomen, hip · CPC title

• H04W4/38

  for collecting sensor information · CPC title

• A61B5/0026

  characterised by the transmission medium · CPC title