Adaptive Multi-Antenna Cross-Linking for Wireless Earbuds
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Solution Overview
Problem
Wearable electronic devices face signal interference due to their small form factor, which can lead to degraded or lost data transmission between components, particularly in truly wireless earbuds, affecting user experience by causing synchronization issues or delays in audio playback.
Innovation Solution
Implementing a system with diversity antennas and adaptive switching mechanisms that monitor and maintain wireless connections by establishing and updating cross-links between antennas on both the wearable device and host device, using processors to determine integrity thresholds and switch to candidate cross-links with higher integrity, and utilizing sensors to trigger adaptive changes based on usage and location data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is positioned in close proximity to other components to achieve small form factor, then the device size is reduced, but signal interference with conductive components increases
Solution Approach 1:
The patent divides the antenna system into multiple separate antennas (first antenna and second antenna) positioned at different locations within the wearable device. This segmentation allows each antenna to operate independently with reduced interference from conductive components, while maintaining a compact overall device form factor.
Solution Approach 2:
The patent positions different antennas at specific locations within the device housing to optimize their respective performance. The first antenna is positioned to minimize interference from certain conductive components, while the second antenna is positioned to avoid interference from different components, creating local optimization of signal quality in different regions of the device.
2Device complexity
If a single antenna is used to simplify the device structure, then the device complexity is reduced, but connection reliability deteriorates due to interference
Solution Approach 1:
The patent implements a dynamic antenna selection mechanism where the processor monitors signal quality from multiple antennas and adaptively switches between them based on current interference conditions. This dynamic approach maintains high connection reliability by selecting the optimal antenna in real-time, while the underlying structure remains relatively simple.
Solution Approach 2:
The patent changes the operational parameter of the antenna system by enabling multiple antennas to operate simultaneously or alternately, rather than using a single fixed antenna. The processor monitors signal integrity parameters and switches between antennas based on these parameter changes, thereby maintaining reliable connections without significantly increasing device complexity.
3Reliability
If multiple antennas are implemented to improve connection reliability, then signal interference is reduced, but the device complexity increases
Solution Approach 1:
The patent implements a self-service antenna management system where the processor automatically monitors signal quality and performs adaptive switching between antennas without user intervention. The system self-diagnoses interference conditions and selects the optimal antenna configuration, reducing the perceived complexity for the user while maintaining high reliability.
Solution Approach 2:
The patent makes the antenna system multi-functional by enabling it to perform both primary communication functions and adaptive interference mitigation. The same antenna structure serves multiple purposes: maintaining connection reliability through diverse antenna options and dynamically adapting to different interference environments, thereby reducing the need for additional specialized components.
4Reliability
If adaptive switching between antennas is implemented to maintain connection integrity, then connection reliability is improved, but the processing complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-establishing multiple antenna connections and their respective integrity thresholds before actual data transmission begins. The processor monitors these pre-configured connections and switches antennas based on predetermined criteria, reducing the need for complex real-time decision-making and simplifying the processing requirements during active communication.
Solution Approach 2:
The patent employs feedback mechanisms where the processor continuously monitors the integrity of wireless connections and uses this feedback to trigger adaptive switching when thresholds are breached. This feedback-driven approach simplifies processing by using clear threshold-based decision rules rather than complex continuous optimization algorithms, maintaining reliability while managing processing complexity.
Data Source
AI summary
Systems, methods, and apparatuses, including electronic devices and computer-readable storage media, for adaptively switching wireless connections between antennas of a wearable electronic device and a host electronic device. One device includes a wearable electronic device with a first and second housing, each housing including two or more antennas. The wearable electronic device is configured to establish and monitor a wireless cross-link between two antennas in different housings, or between antennas in one housing and antennas of a host electronic device. The wearable electronic device can monitor the integrity of the wireless cross-link, and establish an updated cross-link in response to the wireless cross-link not meeting a predetermined integrity threshold. The wearable electronic device can monitor a wireless cross-head link between housings of a wearable electronic device at the same time as a wireless cross-body link between the wearable electronic device and the host electronic device.