RF Logic Portion for Continuous Glucose Monitoring Data Stream
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Solution Overview
Problem
Existing continuous glucose monitoring systems face challenges with high gate count, high power consumption, and induced digital noise in their radio frequency data stream generation, which interferes with the operation of medical devices used for insulin therapy.
Innovation Solution
The implementation of a data stream generator with a radio frequency logic portion that includes finite state machines and discrete digital logic circuits to control the generation of a radio frequency data stream for wireless communication, reducing gate count and power consumption while minimizing digital noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If typical ASICs are used for radio frequency data stream generation, then wireless communication capability is achieved, but gate count increases and power consumption increases
Solution Approach 1:
The patent divides the radio frequency data stream generation system into separate functional modules: a data stream generator that produces the data stream and a radio frequency logic portion that generates the RF signal. This segmentation allows each module to be optimized independently, reducing overall gate count while maintaining wireless communication capability.
Solution Approach 2:
The patent extracts the radio frequency logic portion as a separate functional block from the data stream generation process. By taking out the RF logic as a distinct module with its own finite state machines and digital logic circuits, the design reduces the gate count burden on the main processor while preserving wireless communication functionality.
2Reliability
If typical ASICs are used for radio frequency data stream generation, then wireless communication capability is achieved, but power consumption increases
Solution Approach 1:
By segmenting the system into a data stream generator and a separate radio frequency logic portion, the patent enables independent power optimization. The RF logic portion can be designed with low-power finite state machines and digital logic circuits that activate only when needed, reducing overall power consumption while maintaining wireless communication capability.
Solution Approach 2:
The radio frequency logic portion operates in periodic cycles, generating data streams only when communication is required. The finite state machines control the timing and duration of RF signal generation, allowing the system to enter low-power states between transmissions, thereby reducing average power consumption.
3Reliability
If typical ASICs are used for radio frequency data stream generation, then wireless communication capability is achieved, but digital noise increases and interferes with device operation
Solution Approach 1:
By extracting the radio frequency logic as a separate physical and functional module, the patent isolates the digital noise-generating circuits from the sensitive data stream generation circuits. This spatial and functional separation reduces digital noise interference while preserving wireless communication capability.
Solution Approach 2:
The patent introduces carefully designed digital logic circuits and finite state machines as intermediary elements between the data stream generator and the RF output. These intermediaries are designed to minimize switching activity and digital noise, acting as buffers that protect the sensitive monitoring functions from RF-generated interference.
Data Source
AI summary
Method and apparatus for providing a data stream generator that generates a data stream associated with a monitored analyte level, and a radio frequency logic portion operatively coupled to the data stream generator, the radio frequency logic portion configured to generate a radio frequency data stream based on the data stream generated from the data stream generator, the radio frequency logic portion further including one or more finite state machines and a plurality of discrete digital logic circuits, the one or more finite state machines configured to control the plurality of digital logic circuits to generate the radio frequency data stream for wireless communication are provided. Systems and kits incorporating the same are also provided.