Physical Cable Pairing for Secure Conferencing Proximity
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Solution Overview
Problem
In flexible and crowded environments with multiple conferencing devices and personal devices, traditional ultrasound pairing methods become cumbersome and insecure, failing to simply and securely pair personal devices with the correct conferencing device without additional user interaction.
Innovation Solution
The method involves using a physical cable connection, such as HDMI or USB, to authenticate and pair personal devices with conferencing devices, leveraging the HDMI Display Data Channel (DDC) or Consumer Electronics Control (CEC) channel for communication and authentication, allowing for a secure and seamless combination of services without requiring users to explicitly choose between physical and virtual connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ultrasound pairing methods are used in flexible and crowded environments with multiple conferencing devices, then wireless connectivity is established, but the pairing process becomes cumbersome and insecure
Solution Approach 1:
The patent introduces a physical cable connection as an intermediary medium between the personal device and conferencing device. This physical intermediary serves dual purposes: it establishes a secure, trusted connection channel and enables automatic device pairing without requiring complex wireless authentication protocols. The cable acts as a physical mediator that inherently verifies proximity and intent, eliminating security concerns while simplifying the pairing process.
2Reliability
If physical cable connection is used to pair devices, then secure authentication is achieved, but user interaction is required to choose connection type
Solution Approach 1:
The system automatically detects when a physical cable connection is established between devices and autonomously initiates the pairing and authentication process. The devices self-configure the connection without requiring users to manually select connection types or enter authentication codes. The physical connection itself triggers the automated pairing sequence, making the system self-serving and eliminating user burden.
Solution Approach 2:
The patent establishes that the physical cable connection is made before any authentication or service configuration occurs. By requiring the physical connection as a preliminary step, the system ensures that only devices in direct physical contact can proceed with pairing. This preliminary physical action inherently verifies user intent and proximity, eliminating the need for subsequent user confirmation steps.
3Adaptability or versatility
If multiple pairing methods are supported, then device compatibility is improved, but system complexity increases
Solution Approach 1:
The patent segments the pairing process into distinct connection modes: physical cable connection mode and wireless mode. Each mode has its own dedicated protocol and authentication mechanism. By segmenting the overall pairing system into separate, specialized subsystems, the patent maintains simplicity within each mode while providing versatility across modes. The physical pairing subsystem remains simple and secure, while wireless pairing handles compatibility requirements independently.
Data Source
AI summary
A first computing device that provides a first service is configured to securely provide personalized services to a user of a second computing device. The first computing device obtains an authentication token and confirms the proximity of the user associated with the second computing device. The first computing device confirms the proximity of the user by detecting a connection of a physical cable between the first computing device and the second computing device. The first computing device provides the authentication token to the second computing device via the physical cable. The first computing device also authenticates the user of the second computing device and determines a second service available to the user of the second computing device. The first computing device combines the first service with the second service to provide a personalized service to the user at the first computing device.