Wireless Device Pairing via Motion Vector Comparison
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Solution Overview
Problem
Existing wireless networks face challenges in securely pairing new devices without allowing unauthorized devices to join, as traditional validation methods can be breached by determined intruders and add complexity and cost to devices.
Innovation Solution
The implementation of motion-sensitive devices, such as accelerometers and gyroscopes, in wireless units that compare motion vectors to authenticate and pair with the network, ensuring only authorized devices can connect by matching motion patterns within a certain tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a button is added to the new wireless device for validation during pairing, then pairing security is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical button-pressing system with a motion sensing system using accelerometers and gyroscopes. The motion sensitive device detects and compares motion vectors to authenticate pairing, eliminating the need for physical buttons while maintaining security. This substitution reduces device complexity and cost while preserving the pairing validation function.
2Reliability
If motion sensitive devices are used for pairing validation, then unauthorized pairing is prevented, but device complexity increases
Solution Approach 1:
The motion sensitive device serves multiple functions: it detects motion for pairing validation, provides user interaction feedback, and can potentially be used for other security or interaction purposes in the future. By making the motion sensor a multi-functional component rather than a dedicated pairing-only feature, the patent reduces overall device complexity while maintaining strong security.
3Device complexity
If traditional pairing methods are used, then device complexity is reduced, but network security is compromised
Solution Approach 1:
The patent introduces motion vectors as an intermediary element in the pairing process. Instead of directly comparing device identifiers or using simple button presses, the system compares motion vectors captured by motion sensitive devices. This intermediary layer provides a secure verification mechanism that prevents unauthorized pairing while keeping the implementation relatively simple through the use of standard motion sensing technology.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides a secure and cost-effective way to pair new devices by leveraging motion-sensitive technology, making it difficult for unauthorized devices to mimic the motion vectors of trusted units, thus enhancing network security.
Implementation Method 1
The motion sensitive devices each comprise an accelerometer, an electronic compass, and/or a gyroscope
Data Source
AI summary
A wireless unit includes a first motion sensitive device; communications circuitry for wirelessly communicating with a further wireless unit; and a processing device configured to compare at least one first motion vector received from the first motion sensitive device with at least one second motion vector received from a second motion sensitive device of the further wireless unit.