Biometric User Group ID for Shared Display Privacy
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Solution Overview
Problem
Shared electronic devices used by multiple users lack privacy protection when a joint user account is set, as each user's privacy is compromised, and individual log-ins become cumbersome.
Innovation Solution
A display apparatus and control method that utilize biometric information to create a user group ID, allowing for automatic log-in by recognizing biometric data such as face, fingerprint, iris, or voice, while storing metadata for each user to ensure privacy and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a joint user account is set for shared electronic devices, then multiple users can access the device together, but privacy of each user is compromised
Solution Approach 1:
The patent segments user identification into two levels: a group ID for device access control and individual biometric identifiers for privacy-preserving authentication. This segmentation allows the device to recognize multiple users within a group while maintaining their individual privacy boundaries, resolving the contradiction between shared access and privacy protection.
Solution Approach 2:
The patent introduces biometric information as an intermediary between user identity and device access. Instead of directly exposing user accounts, the system uses biometric data as a mediator that automatically identifies users and grants appropriate access rights, eliminating the need for manual log-in while preserving privacy.
2Loss of information
If each user sets his/her own account for privacy protection, then user privacy is ensured, but users suffer difficulty in logging into the electronic device every time
Solution Approach 1:
The patent implements self-service authentication where the biometric information input unit automatically captures and verifies user identity without requiring manual intervention. The system serves itself by autonomously completing the log-in process through biometric recognition, eliminating the burden of repeated manual authentication while maintaining individual user accounts for privacy.
Solution Approach 2:
The patent replaces the mechanical manual log-in process (typing passwords, pressing buttons) with an automated biometric recognition system. This substitution uses optical, acoustic, or other sensing mechanisms to automatically verify user identity, dramatically improving ease of operation while preserving the security and privacy benefits of individual accounts.
3Ease of operation
If biometric information of multiple users is stored for automatic log-in, then log-in convenience is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by using a single biometric information input unit that can handle multiple types of biometric data (face, fingerprint, iris, voice) and serve multiple users. This multi-functional approach consolidates what could be separate systems into one unified device, managing complexity while providing comprehensive automatic log-in capability for all users.
Data Source
AI summary
A display apparatus and control method are provided. The display apparatus includes a storage unit which is provided to store biometric information of an individual user and metadata corresponding to the biometric information; a biometric information input unit through which biometric information of a plurality of users is input; a display unit; and a controller which determines metadata corresponding to a first user by comparing the input biometric information of the first user with the stored biometric information, determines metadata corresponding to a second user by comparing the input biometric information of the second user with the stored biometric information, and generates information of a user group comprising the first and second users based on common metadata between the metadata of the first user and the metadata of the second user.