Display Device Ultrasonic Pairing for Secure Auto-Connection
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Solution Overview
Problem
Current wireless communication technologies for display devices require manual user intervention and expose authentication information, posing inconvenience and security risks.
Innovation Solution
A system involving a display device, terminal device, and cloud server, where the display device broadcasts an audio signal with an identifier code, allowing the terminal device to connect to the cloud server and obtain connection information, using ultrasonic signals for secure and automatic device pairing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual user actions are used to establish wireless connection (activate WLAN, switch networks, search for devices, input authentication), then connection establishment is possible, but user convenience deteriorates and authentication information security risks increase
Solution Approach 1:
The patent introduces an audio signal as an intermediary carrier to transmit device identification information. Instead of direct device-to-device communication requiring manual authentication, the display device converts its identification into an audio signal that the terminal device can automatically receive and process, eliminating the need for manual authentication input and improving both convenience and security
Solution Approach 2:
The patent replaces the mechanical/manual operation of typing authentication information with an automated acoustic field-based identification system. The terminal device automatically captures audio signals containing device identification, eliminating the need for manual keyboard input and reducing authentication security risks while improving operational ease
2Reliability
If manual authentication input is required for device connection, then secure connection can be established, but time consumption increases and user convenience decreases
Solution Approach 1:
The display device pre-encodes its identification information into an audio signal format before the connection process begins. This preliminary preparation allows the terminal device to automatically retrieve and process the identification information without requiring real-time manual authentication input, significantly reducing connection establishment time while maintaining security
Solution Approach 2:
The patent substitutes the time-consuming manual authentication process with an automated audio-based identification system. The terminal device automatically receives, decodes, and processes the audio signal containing device identification, eliminating the need for manual typing and大幅 reducing connection establishment time
3Ease of operation
If wireless local area network switching and device searching are performed manually, then device connection can be established, but operational complexity increases
Solution Approach 1:
The patent extracts the device identification information from the complex wireless network configuration process and encapsulates it into a simple audio signal. This extraction eliminates the need for manual WLAN switching and device searching, as the terminal device can directly receive the identification through audio, significantly simplifying the connection process
Solution Approach 2:
The audio signal serves as an intermediary that carries device identification information without requiring the terminal device to navigate complex wireless network configurations. This intermediary approach bypasses the need for manual WLAN switching and device searching, reducing operational complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure, automatic, and efficient connection of terminal devices to display devices within the same space, preventing connections to incorrect devices and reducing manual intervention.
Implementation Method 1
the audio signal may include an ultrasonic signal that is supported by sound transmission data technology. In one or more embodiments, the frequency of the ultrasonic signal may be greater than 20KHz
Data Source
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AI summary
A display device, a display device connection system, and a method for display device connection are provided. The method includes the following steps. An audio signal including an identifier code is broadcasted by the display device. The audio signal is received by a terminal device to obtain the identifier code. A cloud server is accessed by the terminal device to obtain connection information corresponding to the identifier code. The terminal device is communicatively connected to the display device according to the connection information.