Information Processing Device for Verified Test Function Release
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Solution Overview
Problem
Existing scientific electronic calculators allow for the release of function restrictions during tests, enabling cheating by allowing prohibited functions to be used.
Innovation Solution
An information processing device with a communication unit and control unit that verifies the matching of external terminals to ensure legitimate release of function restrictions, preventing unauthorized release commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If function restriction mode is implemented to prevent cheating during tests, then test security is improved, but the ability to legitimately release functions when needed is worsened
Solution Approach 1:
The patent introduces an external terminal as an intermediary that mediates between the function restriction mode and the user. The external terminal receives release instructions and verifies them before allowing function release, thus maintaining test security while enabling legitimate function releases when authorized.
Solution Approach 2:
The system implements feedback by having the information processing device transmit terminal identification information to the external terminal and receive verification results. This feedback mechanism ensures that only authorized release instructions are executed, maintaining security while enabling controlled function release.
2Reliability
If function restriction is enforced during tests, then cheating prevention is improved, but the flexibility to adjust restrictions is worsened
Solution Approach 1:
The patent makes the function restriction dynamic by allowing the restriction level to change based on external terminal verification. The system can transition between restricted and unrestricted states dynamically, providing both strong cheating prevention and flexible adjustment when authorized.
Solution Approach 2:
The system changes the parameter of function availability based on verification results. When the external terminal verifies the release instruction, the system parameter changes from restricted to unrestricted state, enabling flexible adaptation while maintaining security through controlled parameter changes.
3Reliability
If terminal verification is implemented for release instructions, then unauthorized access is prevented, but system complexity is increased
Solution Approach 1:
The patent extracts the complex verification logic from the information processing device and places it in the external terminal. The information processing device only needs to transmit identification information and receive verification results, significantly reducing its complexity while maintaining security through external verification.
Solution Approach 2:
The external terminal serves as an intermediary that handles the complex verification process. By offloading this functionality to an external device, the information processing device maintains security through verification without bearing the complexity burden, as the intermediary handles the sophisticated verification logic.
Data Source
AI summary
An information processing device includes a communication unit that communicates with an external terminal, and a controller that, when receiving release instruction information instructing release of a function restriction mode from an external terminal in a state in which a usable function is restricted based on transition instruction information received from a predetermined external terminal and instructing a transition to the function restriction mode, controls release of the function restriction mode based on a result of determining as to whether the predetermined external terminal that has transmitted the transition instruction information and the external terminal that has transmitted the release instruction information match each other.