Glucose Sensor Wireless Authentication for Low-Power Data Transfer

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Solution Overview

Problem

Conventional glucose monitoring systems for diabetics suffer from battery life concerns in wireless transmitters, leading to reliability issues due to intermittent data transmission, which often results in delayed alerts for hyperglycemic or hypoglycemic conditions.

Innovation Solution

Implementing a method for wireless communication of glucose data that includes establishing a connection, exchanging authentication information, and transmitting encrypted analyte values using different wireless protocols, allowing for efficient battery conservation while maintaining data reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If intermittent transmission is used to conserve battery life, then energy consumption is reduced, but data reliability deteriorates

Engineering Contradiction:
Improvebattery lifeVSAvoiddata transmission reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The system implements periodic transmission intervals where the transmitter sends data at predetermined time intervals rather than continuously. This periodic action conserves battery life by keeping the transmitter inactive between intervals while still providing regular glucose monitoring updates to the receiver device.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system performs preliminary authentication and connection establishment between the transmitter and receiver before entering intermittent transmission mode. This preliminary action ensures that when transmissions do occur, they are reliable and authenticated, maintaining data integrity even though transmissions are spaced out over time.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If continuous transmission is used to maintain data reliability, then data transmission reliability is improved, but battery life deteriorates

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidbattery life
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous transmission, the system uses periodic transmission at optimized intervals that balance reliability needs with energy conservation. The transmitter activates only at predetermined intervals to send authenticated data packets, then returns to sleep mode.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system changes transmission parameters dynamically, switching from continuous high-power transmission to intermittent low-power transmission. Authentication credentials enable the system to maintain security and reliability while operating in the lower-power intermittent mode for extended periods.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If authentication protocols are implemented to ensure secure communication, then security is improved, but device complexity increases

Engineering Contradiction:
Improvecommunication securityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Authentication credentials are exchanged and verified in advance before data transmission begins. This preliminary authentication action establishes secure communication channels upfront, allowing subsequent data transmissions to proceed with established security without repeating complex authentication routines.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses authentication tokens or credentials that can be copied and reused for subsequent transmissions. Instead of performing full authentication sequences for every data packet, the system leverages previously exchanged authentication information to maintain secure communication with reduced complexity.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12484778B2System and method for wireless communication of glucose data
Publication Date: 2025.12.02 DEXCOM INC
  • US12484778B2 patent drawing
  • US12484778B2 patent drawing
  • US12484778B2 patent drawing

AI summary

Systems, devices, and methods are disclosed for wireless communication of analyte data. One such method includes, during a first interval, establishing a first connection between an analyte sensor system and a display device. During the first connection, the method includes exchanging information related to authentication between the analyte sensor system and the display device. The method includes making a determination regarding whether authentication was performed during the first interval. During a second interval, the method may include establishing a second connection between the analyte sensor system and the display device for transmission of an encrypted analyte value, and bypassing the exchanging of information related to authentication performed during the first connection. The method also includes, during the second interval, the analyte sensor system transmitting the encrypted analyte value to the display device, if the determination indicates that the authentication was performed during the first interval.