Screen Control Transfer in Video Calls Using Secure Device Links
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Solution Overview
Problem
Current methods for transferring screen operation rights in multi-party video communication, such as remote conferences or distance learning, are cumbersome and insecure, often requiring voice calls or sharing passwords, and can lead to simultaneous operations causing errors or privacy risks.
Innovation Solution
A method and apparatus for establishing a separate communication connection between electronic devices to transfer screen control rights, allowing users to hand over, withdraw, or hand back control operations securely and efficiently, with features like encryption and gesture-based inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice call or password sharing is used for remote control, then control transfer is achieved, but operation complexity and security risks increase
Solution Approach 1:
The patent introduces a control right management module as an intermediary that handles control transfers through predefined gestures or buttons. This mediator abstracts the complex authentication and control transfer process, allowing users to simply perform gestures (like spreading fingers apart) or click buttons to transfer control, eliminating the need for voice calls or password sharing while maintaining security and simplicity
2Adaptability or versatility
If multiple users share credentials for remote control, then control access is enabled, but security risks and privacy leakage increase
Solution Approach 1:
The patent extracts the authentication and control transfer process from the main application flow, implementing it in a separate control right management module. This module uses device-level authentication (fingerprint, face recognition, or password) that is already secured by the operating system, rather than sharing application credentials. The control rights are transferred through secure in-app gestures or buttons, eliminating the need to share usernames and passwords while maintaining versatile control access
Solution Approach 2:
The system uses the device's existing authentication mechanisms (fingerprint sensor, face recognition camera, or password input) to verify control transfer requests. Each user authenticates independently through their own biometric or password credentials, eliminating the need to share credentials with others. The control right management module automatically handles the authentication and transfer process without requiring users to manually share login information
3Measurement precision
If manual control transfer is used, then control precision is maintained, but time loss and operational inefficiency increase
Solution Approach 1:
The patent implements preliminary action by pre-configuring control transfer triggers (specific gestures like spreading fingers apart, or dedicated buttons) within the application interface. When a user wants to transfer control, they simply perform the predetermined gesture or click the pre-placed button, and the control right management module immediately processes the transfer. This eliminates the need for real-time negotiation or manual credential sharing, reducing transfer time while maintaining precise control over who gains access
4Reliability
If separate communication connection is established for control, then security is improved, but device complexity increases
Solution Approach 1:
The patent merges the control right management functionality into the existing video communication application interface. The control right management module uses the same communication channels and data transmission protocols already established for the video call, rather than creating separate communication infrastructure. Control gestures, buttons, and data packets are integrated into the existing user interface and network communication flow, achieving secure control transmission without adding structural complexity to the device or communication architecture
Data Source
AI summary
A screen control method and an apparatus are provided. A first electronic device includes: a memory storing computer-readable instructions; and a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations including: in response to a first input by a first user, establishing a first communication connection between the first electronic device and a second electronic device; in response to an inquiry request sent by the second electronic device and a determination input of the inquiry request by the first user, establishing a second communication connection with a third electronic device, wherein the inquiry request comprises an identifier of the third electronic device; and performing a control operation corresponding to a control instruction sent by the third electronic device, for controlling a screen display content of the first electronic device.