Systems and methods for processing and transmitting sensor data

Patent metadata

Field	Value
Publication number	US-12081287-B2
Application number	US-202117234312-A
Country	US
Kind code	B2
Filing date	Apr 19, 2021
Priority date	Mar 14, 2013
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

Systems and methods for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor, are disclosed. In an embodiment, a method for transmitting data between a first communication device associated with an analyte sensor and a second communication device configured to provide user access to sensor-related information comprises: activating a transceiver of a first communication device associated with an analyte sensor at a first time; and establishing a two-way communication channel with the second communication device; wherein the activating comprises waking the transceiver from a low power sleep mode using a forced wakeup from the second communication device.

First claim

What is claimed is:

1. A method for detecting sleep current in a sensor device using a sleep current circuit in communication with the sensor device, the method comprising:
initiating a reduced power state for the sensor device;
providing, while in the reduced power state, a sleep pulse signal to a capacitor in the sleep current circuit, wherein the sleep pulse signal at least partially charges the capacitor;
measuring a charge on the capacitor in the sleep current circuit based on the sleep pulse signal;
comparing the charge on the capacitor to a predetermined threshold to determine if the charge on the capacitor exceeds the predetermined threshold;
detecting the sleep current based on the comparison, wherein:
the sleep current is unwanted current flowing within the sensor device while the sensor device is in the reduced power state, and
the detection of the sleep current is indicative of a fault associated with the sensor device; and

taking one or more actions based on the detection to address the fault associated with the sensor device.

2. The method of claim 1 , further comprising terminating the reduced power state for the sensor device.

3. The method of claim 1 , wherein measuring the charge on the capacitor is performed after the reduced power state is terminated.

4. The method of claim 1 , further comprising terminating the sleep pulse signal while the sensor device is in the reduced power state.

5. The method of claim 1 , wherein the predetermined threshold is an expected charge on the capacitor that correlates with the sleep pulse signal.

6. The method of claim 1 , wherein the sleep current is detected by subtracting the predetermined threshold from the charge on the capacitor.

7. The method of claim 1 , wherein taking the one or more actions to address the fault comprises initiating an error routine.

8. The method of claim 7 , wherein the error routine comprises:
providing an error message to a user if the sleep current is detected.

9. The method of claim 1 , wherein the sleep pulse signal is a single pulse that does not provide power for an ongoing period of time.

10. An analyte sensor system, comprising:
a memory comprising executable instructions; and
one or more processors configured to execute the executable instructions and cause the analyte sensor system to:
initiate a reduced power state for a sensor device;
provide, while in the reduced power state, a sleep pulse signal to a capacitor in a sleep current circuit, wherein the sleep pulse signal at least partially charges the capacitor;
receive, from the sleep current circuit, a charge measured on the capacitor in the sleep current circuit based on the sleep pulse signal;
compare the charge on the capacitor to a predetermined threshold to determine if the charge on the capacitor exceeds the predetermined threshold;
detect the sleep current based on the comparison, wherein:
the sleep current is unwanted current flowing within the sensor device while the sensor device is in the reduced power state, and
the detection of the sleep current is indicative of a fault associated with the sensor device; and

take one or more actions based on the detection to address the fault associated with the sensor device.

11. The analyte sensor system of claim 10 , wherein the one or more processors are further configured to execute the executable instructions and cause the analyte sensor system to:
terminate the reduced power state for the sensor device.

12. The analyte sensor system of claim 10 , wherein the charge measured on the capacitor is measured after the reduced power state is terminated.

13. The analyte sensor system of claim 10 , the sleep pulse signal is terminated while the sensor device is in the reduced power state.

14. The analyte sensor system of claim 10 , wherein the predetermined threshold is an expected charge on the capacitor that correlates with the sleep pulse signal.

15. The analyte sensor system of claim 10 , wherein the sleep current is detected by subtracting the predetermined threshold from the charge on the capacitor.

16. The analyte sensor system of claim 10 , wherein the sleep pulse signal is a single pulse that does not provide power for an ongoing period of time.

17. The method of claim 1 , wherein taking the one or more actions to address the fault comprises monitoring possible technical issues associated with the sensor device.

18. The method of claim 1 , wherein taking the one or more actions to address the fault comprises recording an issue associated with the sensor device.

Assignees

• Dexcom Inc

Inventors

• Miller Thomas
• Dervaes Mark
• Lieu Phong
• Simpson Peter C
• Larvenz Shawn
• Leach Jacob S
• Bohm Sebastian

Classifications

• H04W4/80 Primary

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

• H04B5/20

  characterised by the transmission technique; characterised by the transmission medium · CPC title

• H04B5/73 Primary

  for taking measurements, e.g. using sensing coils · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04B5/48

  Transceivers · CPC title