Bluetooth Chip Point-to-Multipoint Audio Streaming

The patent divides the audio stream into multiple separate Bluetooth transmissions, each handled by a distinct Bluetooth chip. Instead of attempting point-to-multipoint transmission from a single chip, the system segments the transmission task across multiple chips, where each chip independently transmits to one or more multimedia devices. This segmentation resolves the contradiction by maintaining compliance with the Bluetooth standard's point-to-point transmission requirement while achieving multipoint distribution capability.

The patent combines multiple Bluetooth chips into a single controlling device to achieve synchronized point-to-multipoint transmission. By merging the capabilities of multiple chips within one device, the system can simultaneously transmit audio streams to multiple multimedia devices while maintaining the required point-to-point transmission mode for each chip. This merging allows the controlling device to overcome the limitation of individual chips and provide the desired versatility.

The patent makes each Bluetooth chip multi-functional by enabling it to handle both audio data transmission and synchronization signal transmission. Instead of requiring separate chips for different functions, each chip is designed to perform multiple roles: transmitting the audio stream and simultaneously receiving/send synchronization signals. This multi-functionality reduces the overall number of chips needed while maintaining synchronized transmission capability across multiple multimedia devices.

The patent introduces a synchronization signal as an intermediary mechanism that coordinates transmission across multiple Bluetooth chips. This synchronization signal acts as a mediator that ensures all chips transmit audio data in sync with each other and with the respective multimedia devices. By using this intermediary synchronization mechanism, the system achieves coordinated multipoint transmission without requiring complex inter-chip communication protocols.

The patent segments the audio distribution task into multiple independent A2DP transmission channels, each operating between a single Bluetooth chip and one or more multimedia devices. By maintaining separate A2DP connections rather than attempting a single point-to-multipoint connection, the system preserves the reliability and audio quality guarantees of the A2DP profile while achieving multipoint distribution through parallel segmented connections.

The patent combines multiple A2DP transmission channels from multiple Bluetooth chips to achieve the effect of point-to-multipoint distribution. Each chip maintains its own A2DP connection(s) to ensure audio quality, and by merging these parallel connections at the device level, the system achieves synchronized distribution to multiple multimedia devices while preserving the reliability benefits of the A2DP profile.

The patent implements a self-service synchronization mechanism where each Bluetooth chip autonomously handles its own synchronization timing and transmission scheduling. Instead of requiring a central controller to manage synchronization across all chips, each chip independently monitors and adjusts its transmission based on received synchronization signals, reducing the implementation complexity of centralized control while maintaining synchronization accuracy.

The patent employs feedback mechanisms where synchronization status and timing information are continuously monitored and used to adjust transmission parameters. Each Bluetooth chip receives feedback about synchronization state from the system and automatically adjusts its transmission timing to maintain accuracy. This feedback loop enables reliable synchronization while keeping implementation complexity manageable through automated adjustment rather than manual configuration.