Continuous glucose monitor communication with multiple display devices
First Claim
1. A method for pairing a transmitter coupled to an analyte sensor of a continuous glucose monitoring system with a plurality of display devices, comprising:
- requesting to connect a first display device to the transmitter coupled to the analyte sensor over a first wireless connection;
requesting to connect a second display device to the transmitter coupled to the analyte sensor over a second wireless connection;
limiting the number of display devices connected to the transmitter by rejecting additional connection requests during a communication interval;
initiating an authentication process by exchanging two or more keys with the first display device or the second display device periodically, wherein at least one of the two or more keys is generated based on identification information associated with the transmitter;
comparing the at least one of the two or more keys with a stored key in the transmitter, wherein the at least one of the two or more keys and the stored key comprise encrypted values;
changing another of the two or more keys, wherein the another key is an application key that is generated using a software application;
transmitting analyte values generated by the analyte sensor by the transmitter to the first display device upon authenticating the first display device or to the second display device upon authenticating the second display device; and
rejecting the request from the first or the second display device to connect to the transmitter when the stored key does not match with the at least one of the two or more keys.
1 Assignment
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Accused Products
Abstract
A continuous glucose monitor for wirelessly transmitting data relating to glucose value to a plurality of displays is disclosed, as well as systems and methods for limiting the number of display devices that can connect to a continuous glucose transmitter. In addition, security, including hashing techniques and a changing application key, can be used to provide secure communications between the continuous glucose transmitter and the displays. Also provided is a continuous glucose monitor and techniques for authenticating multiple displays, providing secure data transmissions to multiple displays, and coordinating the interaction of commands and data updates between multiple displays.
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Citations
12 Claims
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1. A method for pairing a transmitter coupled to an analyte sensor of a continuous glucose monitoring system with a plurality of display devices, comprising:
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requesting to connect a first display device to the transmitter coupled to the analyte sensor over a first wireless connection; requesting to connect a second display device to the transmitter coupled to the analyte sensor over a second wireless connection; limiting the number of display devices connected to the transmitter by rejecting additional connection requests during a communication interval; initiating an authentication process by exchanging two or more keys with the first display device or the second display device periodically, wherein at least one of the two or more keys is generated based on identification information associated with the transmitter; comparing the at least one of the two or more keys with a stored key in the transmitter, wherein the at least one of the two or more keys and the stored key comprise encrypted values; changing another of the two or more keys, wherein the another key is an application key that is generated using a software application; transmitting analyte values generated by the analyte sensor by the transmitter to the first display device upon authenticating the first display device or to the second display device upon authenticating the second display device; and rejecting the request from the first or the second display device to connect to the transmitter when the stored key does not match with the at least one of the two or more keys. - View Dependent Claims (2, 3, 4)
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5. A system for pairing a transmitter coupled to an analyte sensor of a continuous glucose monitoring system with a plurality of display devices, comprising:
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a first display device configured to request to connect with the transmitter coupled to the analyte sensor over a first wireless connection; a second display device configured to request to connect with the transmitter coupled to the analyte sensor over a second wireless connection, wherein the system is configured to; limit the number of connected display devices by rejecting additional connection requests during a communication interval; initiate an authentication process by exchanging two or more keys with the first display device or the second display device periodically, wherein at least one of the two or more keys is generated based on identification information associated with the transmitter; compare the at least one of the two or more keys with a stored key in the transmitter, wherein the at least one of the two or more keys and the stored key comprise encrypted values; change another of the two or more keys wherein the another key is an application key that is generated using a software application; transmit analyte values generated by the analyte sensor by the transmitter to the first display device upon authentication of the first display device or to the second display device upon authentication of the second display device; and reject the request from the first or the second display device to connect to the transmitter when the stored key does not match with the at least one of the two or more keys. - View Dependent Claims (6, 7, 8)
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9. A non-transitory computer-readable medium comprising instructions which, when executed by one or more processors, perform a method for pairing a transmitter coupled to an analyte sensor of a continuous glucose monitoring system with a plurality of display devices, comprising:
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requesting to connect a first display device to the transmitter coupled to the analyte sensor over a first wireless connection; requesting to connect a second display device to the transmitter coupled to the analyte sensor over a second wireless connection; limiting the number of display devices connected to the transmitter by rejecting additional connection requests during a communication interval; initiating an authentication process by exchanging two or more keys with the first display device or the second display device periodically, wherein at least one of the one or more keys is generated based on identification information associated with the transmitter; changing another of the two or more keys at the beginning of each period, wherein the another key is an application key that is generated using a software application; transmitting analyte values generated by the analyte sensor by the transmitter to the first display device upon authenticating the first display device or to the second display device upon authenticating the second display device; and rejecting the request from the first or the second display device to connect to the transmitter when the stored key does not match with the at least one of the two or more keys. - View Dependent Claims (10, 11, 12)
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Specification