External Bluetooth Speaker Audio Balance Adjustment
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Solution Overview
Problem
Conventional Bluetooth-enabled speakers cannot automatically adjust their audio balance based on their location relative to a vehicle, which limits the ability to replicate the in-vehicle audio experience externally.
Innovation Solution
A method and system that utilize direction finding signals and location determination techniques, such as angle of arrival and trilateration, to adjust the left/right balance of external Bluetooth speakers relative to a vehicle reference point, allowing for automatic or manual adjustment of audio balance to mimic the in-vehicle audio experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external Bluetooth speakers output audio via an in-vehicle Bluetooth-enabled audio system, then audio sharing capability is improved, but audio balance cannot be automatically adjusted based on speaker location
Solution Approach 1:
The audio system receives direction finding signals from external Bluetooth speakers to continuously determine their location, and automatically adjusts audio balance based on this location information. This feedback loop enables automatic adaptation of audio balance without manual intervention.
Solution Approach 2:
The external Bluetooth speaker performs self-location determination using direction finding signals and automatically communicates its position to the audio system, which then automatically adjusts the audio balance. The system serves itself by autonomously determining location and adjusting balance without user intervention.
2Adaptability or versatility
If manual adjustment of audio balance is implemented for external speakers, then adaptability is improved, but ease of operation deteriorates due to additional manual configuration steps
Solution Approach 1:
The system continuously receives direction finding signals from external speakers to determine their location, and automatically adjusts audio balance based on this real-time location information. This eliminates manual configuration while maintaining adaptability to different speaker positions.
Solution Approach 2:
The patent replaces manual mechanical adjustment of audio balance with an automated electronic system that uses direction finding signals and location determination to automatically adjust balance, eliminating the need for manual configuration steps.
3Measurement precision
If location determination techniques such as angle of arrival and trilateration are implemented, then measurement precision of speaker location is improved, but device complexity increases
Solution Approach 1:
The in-vehicle Bluetooth-enabled audio system performs multiple functions: it serves as both the audio output system and the location determination system by receiving direction finding signals from external speakers. This multi-functionality reduces overall system complexity while maintaining high location measurement precision.
Solution Approach 2:
The patent uses Bluetooth direction finding signals as an intermediary to convey location information from external speakers to the audio system. This intermediary mechanism enables precise location determination without requiring complex dedicated hardware, as the Bluetooth protocol itself provides the direction finding capability.
Data Source
AI summary
Systems and methods are provided for using one or more external Bluetooth speakers in conjunction with an in-vehicle Bluetooth-enabled audio system. Locational features or aspects of the external Bluetooth speakers and the in-vehicle Bluetooth-enabled audio system can be leveraged in a manner that allows for automatic or manual adjustment of the one or more external Bluetooth speakers, e.g., adjusting left/right balance of the one or more external Bluetooth speakers based on the position or location of the or more external speakers relative to the vehicle, in-vehicle Bluetooth-enabled audio system, etc.