Bluetooth Audio Stream Segmentation for Multi-Device Sync
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Solution Overview
Problem
Current Bluetooth technology does not support synchronized point-to-multipoint transmission of audio streams to multiple multimedia devices, limiting the ability to control and synchronize multiple wireless audio devices, especially when they are from different manufacturers.
Innovation Solution
A Bluetooth device with a wireless communication circuit that receives identifiers from each audio device, applies independent audio effects based on device characteristics, and allocates modified audio streams to respective devices for synchronized transmission, using a modified A2DP profile that enables point-to-multipoint connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Bluetooth A2DP profile is used for audio transmission, then wireless audio streaming is enabled, but synchronized point-to-multipoint transmission to multiple devices is not supported
Solution Approach 1:
The patent divides the audio stream into multiple synchronized streams, each intended for a respective Bluetooth multimedia device. The single Bluetooth chip segments the audio data transmission by creating multiple logical connections (point-to-multipoint) while maintaining synchronization through a unified control mechanism, resolving the contradiction between multi-device connectivity and synchronization reliability.
2Reliability
If multiple Bluetooth chips are used to control multiple multimedia devices, then synchronized transmission is possible, but device complexity increases
Solution Approach 1:
The patent makes a single Bluetooth chip perform multiple functions by enabling it to establish point-to-multipoint connections with multiple multimedia devices simultaneously. The chip universally handles audio streaming to multiple devices through a modified A2DP profile, eliminating the need for multiple dedicated Bluetooth chips while maintaining synchronization reliability.
3Adaptability or versatility
If wireless speakers from different manufacturers are connected, then device compatibility increases, but synchronization becomes impossible due to unknown characteristics
Solution Approach 1:
The patent enables wireless speakers to self-identify and self-describe their characteristics through the modified A2DP profile. Each speaker communicates its own capabilities and status information to the Bluetooth device, allowing automatic synchronization configuration without requiring pre-knowledge of device characteristics or manufacturer-specific setup procedures.
Data Source
AI summary
A Bluetooth device controlling a plurality of wireless audio devices, includes: a wireless communication circuit, to receive a wireless audio device identifier from each wireless audio device; a sound processing circuit to apply independent audio effects on a main audio stream such that the sound processing circuit outputs as many modified audio streams as the wireless communication circuit has received identifiers of wireless audio devices, on the basis of the characteristics of each wireless audio device; an allocation circuit to allocate each modified audio stream to a respective wireless audio device; and a transmission circuit to wirelessly transmit through a Bluetooth usage each modified audio stream to the respective wireless audio device for emission by the wireless audio devices.