In-Flight Entertainment Bluetooth Pairing via Wired Docking
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Solution Overview
Problem
In-flight entertainment systems face interference and connectivity issues due to high concentrations of wireless transceivers competing for the same frequency band, leading to degraded or intermittent operation, especially when establishing and re-establishing Bluetooth connections.
Innovation Solution
Implementing a docking station with wired interfaces for wireless controllers and display units to establish Bluetooth connections through wired communications, reducing interference and ensuring secure pairing by bypassing wireless congestion and potential unauthorized interceptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless transceivers use Bluetooth communication to establish connections in high-density environments, then connectivity between display units and wireless controllers is enabled, but communication interference and frequency band congestion increase
Solution Approach 1:
The patent introduces a wired connection as an intermediary medium during the Bluetooth pairing process. The wired interface acts as a mediator that carries pairing messages between the display unit and wireless controller, avoiding the use of the congested wireless channel for this critical establishment phase. This resolves the contradiction by enabling Bluetooth connectivity while eliminating wireless interference during connection setup.
2Reliability
If wireless transceivers increase transmission power to respond to link degradation, then communication reliability is improved, but signal noise floor in the cabin escalates and further degrades operation
Solution Approach 1:
The patent replaces the wireless electromagnetic field-based communication mechanism with a wired electrical connection mechanism for the pairing process. This substitution eliminates the need for high-power wireless transmissions that contribute to noise floor escalation, while maintaining reliable communication through the stable wired interface during the critical connection establishment phase.
3Adaptability or versatility
If hundreds of transceivers simultaneously perform Bluetooth connection establishment and re-establishment operations, then device pairing capability is enabled, but connection establishment becomes difficult or intermittently impossible due to frequency band congestion
Solution Approach 1:
The wired interface serves as an intermediary communication channel during the pairing establishment phase, allowing hundreds of devices to simultaneously perform connection setup operations without interfering with each other. This mediator approach enables reliable one-to-one pairing between display units and wireless controllers even in high-density environments where wireless channels would be congested.
Data Source
AI summary
An entertainment system includes a docking station having a wired interface, a display unit, and a wireless controller. The display unit includes a video display device and a processor that communicates through a Bluetooth transceiver and the wired interface of the docking station. The wireless controller includes a processor that communicates through a wired interface and a Bluetooth transceiver. The wireless controller is releasably docked in the docking station to communicatively connect the wired interfaces of the wireless controller and the docking station. While docked in the docking station the processors of the wireless controller and the display unit communicate through the wired interfaces of the wireless controller and the docking station to establish a Bluetooth connection between the Bluetooth transceivers of the wireless controller and the display unit. The processor of the wireless controller does not operate to establish the Bluetooth connection using communications through the Bluetooth transceiver.