Video Call Display Handover With Privacy Notification Control

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Solution Overview

Problem

Existing video call systems fail to protect the privacy of users when a mobile device is substituted with a larger display device during a video call, leading to unintended exposure of the user's image to multiple viewers.

Innovation Solution

A method and system that includes generating a notification signal to inform the counterpart device about the substitution, allowing the user to accept or reject the change, and controlling the image transmission based on the response, ensuring privacy is maintained.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a mobile device is substituted with a display device during a video call to provide a larger screen, then the viewing area is improved, but the privacy of the user whose device is substituted is worsened due to unintended exposure of the user's image to multiple viewers

Engineering Contradiction:
Improveviewing areaVSAvoidprivacy exposure
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by sending a notification signal to the counterpart device before the video call screen is output on the display device. This advance notification allows the counterpart user to be aware of the substitution and make an informed decision about whether to proceed, thereby preventing unintended privacy exposure while enabling the larger viewing area benefit.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by receiving a response signal from the counterpart device after sending the notification. Based on this feedback, the system determines whether to actually perform the video call substitution. This feedback mechanism ensures that the user's privacy is protected by only proceeding with substitution when explicitly authorized.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the display device automatically performs video call substitution without notification, then the ease of operation is improved, but the privacy protection is worsened

Engineering Contradiction:
Improveoperation convenienceVSAvoidprivacy protection
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system maintains ease of operation by automating the substitution process while incorporating privacy protection through feedback. The notification signal and response mechanism provide necessary user awareness and authorization, ensuring that automatic substitution does not compromise privacy protection.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary notification to the counterpart device before executing the substitution. This preliminary action balances ease of operation with privacy protection by informing the user of the upcoming substitution, allowing them to make an informed decision while still benefiting from the convenient automated process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12489850B2Video call processing method, display device for performing same method, mobile device for performing same, server for performing same method, and computer-readable storage medium in which program for performing same method is stored
Publication Date: 2025.12.02 SAMSUNG ELECTRONICS CO LTD
  • US12489850B2 patent drawing
  • US12489850B2 patent drawing
  • US12489850B2 patent drawing

AI summary

A video call processing method includes receiving a substitution request that a video call being performed by a mobile device be performed by the display device, generating, by the display device based on the substitution request, a notification signal corresponding to the substitution request, and transmitting, before a video call screen that includes an image of a counterpart of the video call is output by the display device, the notification signal to a counterpart device, which is a mobile device of the counterpart.