Biometric Screen Saver Cancellation for Multi-User Devices
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Solution Overview
Problem
In information processing devices, such as game devices, there is a need to easily control the screen state, especially when multiple users can log in, as existing screen saver mechanisms can impair usability by requiring password input for cancellation and may inadvertently turn off the display instead of activating the screen saver.
Innovation Solution
An information processing device with an input receiving section, a display control section, a registered user information retaining section, and a biometric authenticating portion that changes the screen state based on user input and biological authentication, allowing easy restoration of the display without password requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a password-based screen saver cancellation mechanism is implemented, then security is improved, but usability deteriorates due to the need for password input
Solution Approach 1:
The patent replaces the mechanical keyboard input system with an optical recognition system. The camera captures the user's face image, and the image processing unit automatically recognizes and extracts the password from the facial features or displayed elements, eliminating the need for manual keyboard input while maintaining security
Solution Approach 2:
The system performs automatic password recognition and screen saver cancellation without requiring user intervention. The image processing unit automatically detects the password from the captured image, validates it, and triggers the screen saver cancellation, making the system serve itself
2Use of energy by moving object
If a utility simply turns off the display power supply instead of activating a screen saver, then power consumption is reduced, but the ability to restore the display deteriorates
Solution Approach 1:
The system implements a feedback mechanism where the image processing unit continuously monitors for user presence or input signals even when the display is turned off. When detection occurs, the system automatically restores the display power supply and returns to normal operation, ensuring easy restoration while maintaining power savings
Data Source
AI summary
An information processing device includes: an input receiving section receiving an input; a display control section changing a display screen to a first screen when the input receiving section has not received any input for a predetermined time; a registered user information retaining section retaining biological information of a plurality of users registered in the information processing device; a biological information obtaining portion obtaining biological information; and a biometric authenticating portion determining whether a user whose biological information is obtained by the biological information obtaining portion is a registered user by comparing the obtained biological information with the biological information of the plurality of users retained in the registered user information retaining section. When the biometric authenticating portion determines that the user whose biological information is obtained is a registered user, the display control section changes the first screen to a second screen.