Bluetooth Hub Relay for Multi-Speaker Audio Connectivity
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Solution Overview
Problem
Current Bluetooth technologies are inadequate for connecting multiple Bluetooth speakers to an audio source simultaneously or multiple audio sources to one or more Bluetooth speakers, as most devices only allow one-to-one connections.
Innovation Solution
A hub-based system with two chips, where one chip connects to physical sink devices and creates virtual sink devices detectable by physical source devices, allowing data relay between source and sink devices via Bluetooth connections, enabling multiple speakers to connect to a single audio source or multiple sources to connect to speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one-to-one Bluetooth connection is used, then connection simplicity is maintained, but device connectivity versatility deteriorates
Solution Approach 1:
The patent introduces a hub device as an intermediary between audio sources and Bluetooth speakers. The hub receives audio data from one or more source devices and relays it to one or more sink devices (speakers), enabling many-to-many connectivity without requiring direct peer-to-peer connections between all devices. This mediator approach resolves the contradiction by providing versatility while maintaining connection simplicity through centralized management.
Solution Approach 2:
The hub device performs multiple functions: it acts as a Bluetooth controller, creates virtual sink devices, manages multiple audio streams, and coordinates data relay between sources and sinks. This multi-functionality allows a single device to handle various connection scenarios (one-to-many, many-to-one, many-to-many), thereby improving adaptability without proportionally increasing overall system complexity.
2Adaptability or versatility
If multiple Bluetooth speakers are connected to a single audio source, then audio playback versatility is improved, but connection management complexity increases
Solution Approach 1:
The hub device automatically manages connections and data routing without requiring user intervention. It autonomously pairs with audio sources and speakers, creates appropriate virtual devices, and routes audio streams based on pairing information. This self-service capability improves ease of operation by eliminating manual connection management while enabling versatile audio playback across multiple speakers.
Solution Approach 2:
The hub pre-establishes virtual sink devices and pairing configurations before actual audio playback is needed. By preparing connection frameworks in advance, the system enables rapid deployment of multi-speaker audio playback without requiring complex real-time setup, thereby improving ease of operation while maintaining versatility.
3Difficulty of detecting and measuring
If virtual sink devices are created, then device detectability is improved, but system complexity increases
Solution Approach 1:
The hub creates virtual copies of sink devices that appear as real Bluetooth devices to source devices. These virtual sink devices replicate the characteristics and detectability of physical speakers, allowing sources to discover and connect to them using standard Bluetooth protocols. This copying approach improves detectability while containing complexity within the hub, as the virtual devices are software constructs rather than physical hardware additions.
Data Source
AI summary
Various data (e.g., audio) relay devices and methods are disclosed. An exemplary data relay device may comprise a first chip configured to wirelessly connect to one or more physical sink devices, and a second chip. The second chip may be configured to create one or more virtual sink devices configured to be wirelessly detectable by one or more physical source devices, in response to the one or more physical source devices wirelessly connecting to the second chip, obtain data from the one or more physical source devices, and transmit the data to the first chip, causing the first chip to relay the data to the one or more physical sink devices.