Adaptive Sound Collection Control for Online Conference Privacy
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Solution Overview
Problem
Existing communication systems during online conferences often face issues where unintended sounds are transmitted to communication partners, leading to security concerns and unwanted information leakage.
Innovation Solution
An information processing apparatus that adjusts sound collection based on the state of the user's upper body region as photographed, using processors in terminal devices to control microphone functions in accordance with the direction, inclination, and movement of the user's face and neck, ensuring that sounds are only transmitted when the user is actively engaged in the conference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound collection is continuously performed during communication, then audio transmission is maintained, but unintended sounds may be transmitted causing security issues
Solution Approach 1:
The patent applies dynamics by making the sound collection control adaptive and changeable based on real-time upper body state detection. The system dynamically adjusts microphone activation based on detected face direction, neck inclination, and body movement, transitioning between active listening and muted states according to user posture changes rather than using a fixed continuous collection mode
Solution Approach 2:
The system implements feedback by continuously monitoring the user's upper body region through imaging devices and using this information to control sound collection. The detected upper body state (face direction, neck angle, movement) feeds back to the sound collection control unit, which adjusts microphone activation in response to these observations, creating a closed-loop control system that prevents unintended sound transmission
2Object-generated harmful factors
If sound collection is restricted based on upper body state, then unintended sound transmission is prevented, but legitimate communication may be interrupted
Solution Approach 1:
The patent applies parameter changes by monitoring specific parameters of the upper body state (face direction angle, neck inclination angle, movement magnitude) and comparing them against predetermined thresholds. When these parameters indicate the user is facing away from the communication device or making sudden movements, sound collection is restricted. This parameter-based control allows legitimate communication to continue when parameters are within normal ranges while preventing unintended transmission when parameters indicate problematic states
Data Source
AI summary
An information processing apparatus includes a processor configured to change control of sound collection in accordance with a state of an upper body region of a user who is photographed, during a communication of transmitting a sound.