Motion-Based Wireless Pairing for Security and Simplicity
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Solution Overview
Problem
Existing pairing methods for wireless devices require complex sequences and numeric key exchanges, making them unintuitive and inconvenient for devices without display or input capabilities, and lack security against unauthorized pairing.
Innovation Solution
A method and system using pairing motion events, such as tapping or proximity patterns, to establish a secure communication link between Bluetooth Low Energy (BLE) enabled devices, eliminating the need for numeric keys and ensuring only intended devices can pair by satisfying specific motion-based conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pairing methods using numeric key exchange are used, then security against unauthorized pairing is improved, but device complexity and ease of operation deteriorate due to requiring displays and input devices
Solution Approach 1:
The patent replaces the mechanical/visual system of numeric key exchange (requiring displays and input devices) with a motion-based pairing system using accelerometers and gyroscopes to detect physical movements like tapping or proximity patterns, eliminating the need for complex display and input hardware while maintaining security
Solution Approach 2:
The pairing system uses the device's own motion sensors (accelerometer and gyroscope) to detect pairing motions, making the device self-sufficient for pairing operations without requiring external displays or input devices, thus reducing device complexity while maintaining security
2Reliability
If conventional pairing methods with six-digit key exchange are used, then security is improved, but ease of operation deteriorates due to non-intuitive sequences and key entry requirements
Solution Approach 1:
The patent substitutes the manual key entry process with automatic detection of pre-defined physical motion events (such as tapping the device or bringing it close to another device), which are then translated into pairing commands, making the operation intuitive and eliminating the need for users to remember or enter numeric sequences
Solution Approach 2:
The patent creates a physical copy or representation of the pairing authentication through motion patterns (e.g., tapping motion or proximity pattern) that mirrors the security function of numeric key exchange but is more intuitive to perform, as users naturally understand physical gestures better than memorizing digit sequences
3Device complexity
If devices without display or input capabilities are used, then device simplicity is improved, but pairing capability deteriorates as these devices cannot perform conventional key exchange
Solution Approach 1:
The patent enables pairing capability in simple devices without displays or input devices by replacing the visual-keyboard interface with motion-based authentication using built-in accelerometers and gyroscopes, allowing devices like speakers or wearables to pair securely through physical gestures
Solution Approach 2:
The patent makes the motion sensors (accelerometer and gyroscope) serve multiple functions: they are used for both device operation control and for authentication during pairing, allowing simple devices to gain pairing capability without adding dedicated pairing hardware, thus maintaining simplicity while improving adaptability
Data Source
AI summary
Some embodiments of the present invention include pairing two wireless devices by placing at least one of two devices in a pairing mode; performing at least one pairing motion event with at least one of the wireless devices to satisfy at least one pairing condition; detecting satisfaction of the at least one pairing condition; and pairing the two wireless devices in response to detecting satisfaction of the at least one pairing condition. Numerous other aspects are provided.