Terminal Recovery Code Generation for Secure Offline Support
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Solution Overview
Problem
Existing remote support methods for mobile devices risk exposing private user information and fail to provide offline recovery support, as they require transferring screen information and direct login access, which can lead to data leakage and limited functionality during communication failures.
Innovation Solution
A terminal recovery method that generates a recovery code based on the terminal's status, allowing offline recovery without exposing private information, by extracting specific recovery items and set values and decoding them for execution on the target terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If remote support is implemented by transferring screen information, then operator can view and manipulate user terminal settings, but user private information may be leaked to operator
Solution Approach 1:
The patent extracts only the necessary recovery information (recovery items and set values) from the terminal settings and encodes them into a recovery code. This allows the operator to access specific settings without transferring the entire screen information, thereby preventing leakage of unrelated private user data while maintaining remote support capability.
Solution Approach 2:
The recovery code acts as an intermediary mechanism between the operator and the terminal settings. Instead of directly accessing or viewing terminal screen information, the operator receives and inputs the recovery code, which then triggers the terminal to apply the specified settings changes. This intermediary approach enables remote configuration without exposing private information.
2Ease of operation
If remote login is allowed for operator to manipulate user terminal, then operator can change settings, but user cannot notice data viewing and replication by operator
Solution Approach 1:
The terminal performs self-service by automatically applying the settings changes after receiving the recovery code. The terminal decodes the recovery code, identifies the recovery items and set values, and executes the configuration changes autonomously without requiring operator login or manual intervention. This eliminates the need for operator access to terminal data while maintaining configuration capability.
3Ease of operation
If screen information transfer is used for remote support, then operator can diagnose and support user terminal, but system cannot function during communication failure
Solution Approach 1:
The patent segments the remote support functionality into two independent parts: (1) the recovery code generation and transmission phase, which can occur offline through alternative communication channels, and (2) the settings application phase, which executes autonomously on the terminal. This segmentation allows the system to function during communication failures by separating the information transfer from the configuration execution.
4Manufacturing precision
If operator must understand all recovery items and procedures to generate recovery code, then precise control is achieved, but system complexity increases with multiple terminal models
Solution Approach 1:
The patent implements a universal recovery code generation mechanism that works across multiple terminal models. The terminal itself provides the recovery code based on its actual settings, eliminating the need for operators to memorize model-specific recovery procedures. This universal approach maintains precise recovery control while reducing operator complexity requirements.
Data Source
AI summary
The operator terminal receives input of the terminal status of the recovery target terminal 10 from an operator, extracts a recovery item for recovering the terminal status of the recovery target terminal 10 and a recovery set value being a value recovered corresponding to the recovery item based on the input terminal status, and generates a recovery code at least including the recovery item and the recovery set value. The recovery target terminal 10 decodes the recovery code in response to input of the recovery code to acquire the recovery item and the recovery set value and executes a recovery process for the terminal status based on the acquired recovery item and the acquired recovery set value.