Multi-Device Audio Control Using User Position and Gesture Recognition
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Solution Overview
Problem
Existing surround audio systems require manual reconfiguration when mobile devices are moved, and there is no effective method for automatic audio data control based on user position and gesture recognition.
Innovation Solution
Mobile devices form a wireless network using short-distance communication modules like Bluetooth and Wi-Fi, employing sensors and transceivers to detect user position and gestures, and transmit audio data control signals using inaudible high frequencies for synchronization and interference reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual reconfiguration is used for each device movement, then audio system stability is maintained, but device complexity and ease of operation deteriorate
Solution Approach 1:
The system automatically detects device positions and gestures without user intervention. The central controller receives position information from multiple mobile devices and automatically determines audio data transmission targets, eliminating the need for manual reconfiguration when devices are moved.
Solution Approach 2:
The patent replaces manual mechanical configuration with automated electronic detection and control. Sensors detect device positions and gestures, and the central controller automatically processes this information to determine audio transmission targets, substituting manual operations with electronic automation.
2Reliability
If traditional wireless communication is used, then device connectivity is achieved, but signal interference increases
Solution Approach 1:
The patent uses ultrasonic waves for position detection and gesture recognition, which operate in a specific frequency range (20kHz-100kHz) distinct from traditional wireless communication frequencies. This local quality differentiation allows simultaneous operation without interference between position detection signals and audio transmission signals.
Solution Approach 2:
The central controller acts as an intermediary that receives position information from multiple mobile devices and determines the appropriate target device for audio transmission. This intermediary processing prevents signal conflicts by coordinating communication between devices based on their spatial relationships.
3Measurement precision
If multiple sensors are deployed for position and gesture detection, then measurement precision improves, but use of energy increases
Solution Approach 1:
The patent combines multiple detection functions (position detection and gesture recognition) into a unified system using the same ultrasonic transmission and reception infrastructure. The central controller integrates information from multiple sensors to simultaneously determine both device position and user gestures, reducing redundant energy consumption.
Data Source
AI summary
A method or apparatus for multi-channel audio data control using plural mobile devices comprising steps of detecting user presence through assigned frequency, transmitting audio data to the nearest device from the user based on user presence information, and recognize user gesture to control the audio data. A remote controller held by the user may also have a priority to control audio data.