Optical Barcode Authentication for Wireless Device Pairing
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Solution Overview
Problem
Conventional systems for establishing wireless connections between devices, such as Bluetooth protocols, require authentication handshakes that prolong the connection process and can be cumbersome, especially when trying to automatically activate functions between mobile devices.
Innovation Solution
A system where a first device with an illumination component generates a signature light, which is detected by a second mobile device's light sensor, activating a function and displaying a barcode for configuration information, allowing the devices to establish a wireless connection over a personal area network like Bluetooth, ZigBee, or Wireless USB, thereby bypassing traditional inquiry and authentication processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional Bluetooth inquiry and authentication handshakes are used to establish wireless connections, then device authentication and connection establishment are achieved, but the connection process is prolonged and becomes cumbersome
Solution Approach 1:
The patent applies preliminary action by pre-generating and displaying barcodes containing device identification and configuration information before the actual connection process. When the second device scans the barcode, the authentication data is already prepared and available, eliminating the need for time-consuming real-time handshakes and authentication exchanges during connection establishment
Solution Approach 2:
The patent replaces the mechanical/multi-step authentication handshake process with an optical information transfer system. Instead of exchanging multiple authentication packets through wireless communication, the first device displays a barcode that visually encodes authentication information, which the second device captures through its camera or light sensor, substituting the complex wireless authentication protocol with a simpler optical scanning mechanism
2Reliability
If manual authentication processes are required for wireless connections, then security is maintained, but user convenience and ease of operation are reduced
Solution Approach 1:
The patent implements self-service by enabling automatic authentication through barcode scanning. The authentication information is embedded within the barcode itself, allowing the second device to automatically extract and process the credentials without requiring user intervention for manual authentication. The system serves itself by containing all necessary authentication data in the barcode, eliminating the need for users to manually enter passwords or confirm authentication dialogs
Solution Approach 2:
The patent uses copying by creating a visual copy (barcode) of the device's authentication information. Instead of requiring direct interaction between devices for authentication, the first device creates a static visual representation of its identity and configuration data in barcode format. The second device copies this information by scanning the barcode, and this copied data is then used to automatically establish the wireless connection without manual authentication steps
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
This method significantly reduces the time required to establish a wireless connection by automatically configuring devices to communicate, enhancing efficiency and user experience by eliminating the need for manual authentication and lengthy handshakes.
Implementation Method 1
A second mobile device includes a display and a light sensor. A function of the second mobile device is activated in response to the light sensor receiving the illumination having the signature.
Implementation Method 2
The illumination component can be a laser. The signature can be a frequency, duration, and/or intensity of a laser scanning beam from the laser.
Data Source
AI summary
A system for automatically activating a function of a mobile device with a remote device is described. The system includes a first device having an illumination component for generating illumination having a signature. A second mobile device includes a display and a light sensor. A function of the second mobile device is activated in response to the light sensor receiving the illumination having the signature.