Camera QR Service Triggering Without App Switching
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Solution Overview
Problem
Existing QR code scanning methods in mobile terminals are cumbersome, requiring users to find and launch specific applications for each QR code, limiting flexibility and necessitating internet connectivity for verification, especially when the QR code content is a URL link.
Innovation Solution
A method where a camera application on the mobile terminal extracts a regular expression from an optical tag, matches it with a target rule associated with a target application, and processes it to launch and perform the desired service without requiring internet connectivity, using a set of rules and components hosted locally or remotely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users launch dedicated applications to scan QR codes, then the service can be performed accurately, but the operation becomes cumbersome and time-consuming
Solution Approach 1:
The patent combines the QR code scanning function with the camera application interface. When a QR code is scanned, the system automatically recognizes it and launches the corresponding application without requiring the user to manually navigate to the dedicated scanning application. This merging of functions allows the camera app to serve as a universal entry point for all QR code-related services.
Solution Approach 2:
The system performs preliminary registration of application information (package names, service types, verification file locations) in advance. This pre-configured information is stored and used automatically when QR codes are scanned, enabling the system to quickly determine which application to launch and what service to perform without requiring real-time user input or manual searching.
2Reliability
If URL links are used in QR codes for verification, then service authentication is improved, but internet connectivity is required even when not necessary
Solution Approach 1:
The patent implements a hierarchical verification approach where the verification file location is extracted from the QR code content and used locally if available. The system first attempts to use the verification file specified in the QR code data, and only falls back to internet-based verification if the local file is not found or verification fails. This allows offline services to operate without requiring internet connectivity while maintaining security for services that need it.
Solution Approach 2:
The verification mechanism is made dynamic by adapting the verification method based on the service type and availability of local resources. The system can switch between offline verification (using locally stored verification files) and online verification (accessing JSON files via URL) depending on the specific requirements of each service and the current connectivity status, providing flexibility rather than a fixed verification approach.
3Adaptability or versatility
If multiple applications are installed for different QR code services, then service functionality is comprehensive, but device complexity increases
Solution Approach 1:
The camera application is designed to serve as a universal scanner for all types of QR codes, regardless of which application ultimately needs to handle the service. The system extracts application information from the QR code content and automatically routes to the appropriate application, making the camera app a multi-functional entry point that eliminates the need for users to manually select between multiple dedicated scanning applications.
Solution Approach 2:
The camera application acts as an intermediary between the QR code and the various service applications. It receives the QR code, extracts the embedded application information, determines the target application and service type, and then launches the appropriate application with the necessary parameters. This intermediary role simplifies the user interface while maintaining comprehensive service functionality.
Data Source
Figure 1
Figure 2(a)~2(d)
AI summary
The present invention relates to a method for operating a terminal (1), the method comprising performing by a processing unit (11) of the terminal (1): extracting (a) a character sequence from an optical tag scanned with a camera (14) of the terminal (1), wherein said character sequence defines a service to be performed by a target application of the terminal (1); determining (b) that said character sequence matches a target rule associated to the target application; and processing (c) the character sequence so as to trigger said target application to perform said service.