Bluetooth Device Dynamic Parameter Adjustment for Audio Latency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bluetooth devices experience latency issues during audio transmission due to hardware and software limitations in existing Advanced Audio Distribution Profile (A2DP) standards, which affect synchronization in multimedia playback.
Innovation Solution
A Bluetooth device and method that allow for the alteration of executing parameters through setting data received via a control channel, modifying operating environments to reduce latency, including adjusting buffer sizes, digital signal processor initialization, and communication link priorities, enabling dynamic configuration modes like BLE and BR/EDR to optimize audio playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional A2DP hardware and software configurations are used, then Bluetooth devices can maintain standard compatibility, but audio playback latency increases
Solution Approach 1:
The patent implements dynamic configuration of Bluetooth communication parameters by receiving setting data through a control channel and altering executing parameters based on this data. This allows the system to switch between different operating modes (e.g., different packet lengths, interval settings) to optimize for low latency while maintaining standard compatibility when needed.
Solution Approach 2:
The patent changes physical and operational parameters of the Bluetooth communication system by modifying executing parameters such as packet length, interval settings, and processing timing based on received setting data. These parameter changes enable the system to reduce audio playback latency while maintaining compatibility with the A2DP standard framework.
2Productivity
If executing parameters are altered to reduce latency, then audio playback performance improves, but device complexity increases
Solution Approach 1:
The patent implements a self-service mechanism where the Bluetooth device automatically receives setting data through a control channel and autonomously alters its executing parameters based on this data. This self-configuration approach reduces the need for complex manual setup and simplifies the user interface while enabling optimized audio playback performance.
3Loss of time
If dynamic parameter adjustment is implemented, then latency is reduced, but control channel communication overhead increases
Solution Approach 1:
The patent implements partial action by selectively adjusting only the specific executing parameters that have the greatest impact on audio playback latency, rather than modifying all possible Bluetooth communication parameters. This targeted approach reduces the amount of setting data that needs to be transmitted through the control channel while still achieving significant latency reduction.
Data Source
AI summary
A Bluetooth device and a method of operating the Bluetooth device are provided. The Bluetooth device includes a communication circuit and a processor coupled to the communication circuit. The communication circuit is configured to receive a setting data through a control channel. The processor is configured to alter, by the setting data, at least one of executing parameters to modify operating environments, and the processor is further configured to perform operations of Bluetooth communications according to the operating environments which have been modified.