AR Device Auto Pairing via Signal Intensity Threshold
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Solution Overview
Problem
Augmented reality devices face issues with unintended auto pairing with multiple wireless audio devices, leading to inconvenience and noise interference, as existing technologies lack a mechanism to restrict auto pairing to only intended devices based on a predetermined range.
Innovation Solution
An augmented reality device and system that utilize sensors and communication interfaces to determine when the device is being worn and perform auto pairing only with wireless audio devices within a predetermined signal intensity range, preventing pairing with devices outside this range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If auto pairing is enabled with all wireless audio devices in range, then connectivity convenience is improved, but unintended pairing with multiple devices causes noise interference and user inconvenience
Solution Approach 1:
The patent applies local quality by creating different pairing behaviors for different spatial zones. Devices within the predetermined signal intensity range (wearing zone) are allowed to pair automatically, while devices outside this range are blocked from pairing. This spatial differentiation resolves the contradiction by enabling convenient auto-pairing only where intended (local area near user's ear) while preventing harmful unintended pairing in other areas.
Solution Approach 2:
The patent uses parameter changes by introducing a signal intensity threshold as a controlling parameter. The communication interface measures signal intensity from pairing packets and compares it against a predetermined threshold value. When the signal intensity exceeds this parameter threshold, auto-pairing is permitted; when it falls below, pairing is blocked. This parameter-based control resolves the contradiction between convenience and interference prevention.
2Reliability
If the communication interface operates continuously to detect all pairing packets, then pairing reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies periodic action by having the communication interface scan for pairing packets at regular intervals rather than continuously operating. The interface periodically activates to detect pairing packets, processes received packets within the predetermined time window, then enters a lower-power state. This periodic scanning maintains pairing reliability by regularly checking for devices while significantly reducing overall power consumption compared to continuous operation.
Solution Approach 2:
The patent implements self-service through the sensor that automatically detects whether the augmented reality device is being worn and triggers communication interface operation accordingly. When the sensor detects the device is worn, it automatically activates the communication interface for pairing detection; when not worn, it keeps the interface dormant. This self-triggering mechanism ensures pairing reliability is maintained when needed while eliminating unnecessary power consumption when the device is not in use.
Data Source
AI summary
An augmented reality device includes a sensor, a communication interface, a memory, and a processor configured to, based on a first signal received from the sensor, control an operation of the communication interface according to whether the augmented reality device is being worn; and perform auto pairing with a wireless audio device according to whether an intensity of a second signal of a pairing packet received from the wireless audio device through the communication interface is within a predetermined range for allowing auto pairing with the wireless audio device.