Bluetooth Audio Clock Scaling Based on RSSI and Speaker Load
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Solution Overview
Problem
Conventional wireless earphones using Bluetooth communication technology face increased power consumption due to supporting additional functions like noise cancellation and AI services, which reduces battery life and compromises wearing comfort and ease of use.
Innovation Solution
An electronic device adjusts the driving clock of its processor based on the received signal strength indication (RSSI) to balance power consumption and performance by switching between different frequency values depending on the electric field strength and the functions being executed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional functions (noise cancellation, AI services) are supported beyond basic music output, then functionality and performance are improved, but power consumption increases
Solution Approach 1:
The processor dynamically adjusts its driving clock frequency based on the currently executed function and RSSI conditions. When executing functions requiring high processing power (noise cancellation, AI services) under weak electric field conditions, the clock frequency is increased to a first frequency value. When executing the same functions under strong electric field conditions, the frequency is reduced to a second frequency value, optimizing power consumption while maintaining functionality.
Solution Approach 2:
The system changes the operating parameter (driving clock frequency) based on the combination of executed function and RSSI. The processor identifies the current function being executed and the RSSI value, then selects an appropriate frequency value from multiple available frequencies, thereby adapting power consumption to actual operational requirements.
2Speed
If a higher driving clock frequency is used to ensure performance of added functions, then processing speed is improved, but power consumption increases and use time decreases
Solution Approach 1:
The driving clock frequency is dynamically adjusted based on real-time conditions (executed function and RSSI). The processor switches between multiple frequency values, using higher frequencies only when necessary for maintaining performance under weak electric field conditions, and reducing to lower frequencies when electric field strength is sufficient, thereby extending battery life while ensuring processing speed when needed.
Solution Approach 2:
The system applies partial action by using high processing power only partially - specifically when the electric field is weak and the function requires it. When the electric field is strong, the system uses reduced processing power, avoiding excessive power consumption while still maintaining adequate performance for the executed function.
3Duration of action of moving object
If a high-capacity battery is mounted to extend use time, then power capacity is improved, but wearing comfort and ease of use deteriorate
Solution Approach 1:
The electronic device serves itself by intelligently managing its own power consumption through dynamic clock frequency adjustment. The processor monitors the executed function and RSSI, then autonomously selects the appropriate driving clock frequency, eliminating the need for a larger battery while maintaining extended use time and preserving wearing comfort.
Data Source
AI summary
An electronic device is provided. The electronic device includes a speaker, a communication module for supporting Bluetooth communication, one or more processors and, memory storing one or more programs including computer-executable instructions that, when executed by the one or more processors, cause the electronic device to identify the received signal strength indication (RSSI) of a Bluetooth communication signal received from an external electronic device via the communication module, during executing a first function using the speaker, identify whether a second function using the speaker is executed together with the first function, control a frequency value of a driving clock of the one or more processor based on the RSSI and the first function and the second function being executed together, adjust the driving clock of the one or more processor to the first frequency value when the RSSI is included in a first range indicating a weak electric field, and adjust the driving clock to a second frequency value that is lower than the first frequency value when the RSSI is included in a second range indicating a strong electric field.