Wireless Headphone Battery Endurance via Dynamic Power Management
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Solution Overview
Problem
Wireless headphones often have differing battery life between the left and right headphones, with the right headphone typically consuming more power and having shorter battery life, limiting overall listening time without affecting the user's experience.
Innovation Solution
Implementing a method where the processor in each headphone or the connected electronic device adjusts the volume and sound quality of the audio signal by calculating the difference between the audio signals and reducing power consumption by lowering the volume and high-frequency energy in segments with significant differences, thereby extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the right headphone is used as the main headphone for communication with higher power consumption, then the communication function is improved, but the battery life of the right headphone deteriorates
Solution Approach 1:
The patent dynamically adjusts the working state of the main headphone based on real-time battery level comparisons. When the right headphone's battery level is lower than the left headphone's, the system switches the left headphone to be the main headphone for communication, thereby balancing power consumption and extending overall battery life while maintaining communication functionality.
2Use of energy by moving object
If the volume and high-frequency energy are reduced in segments with significant differences, then the power consumption is reduced, but the sound quality may deteriorate
Solution Approach 1:
The patent applies local quality adjustment by selectively modifying only specific segments of the audio signal where significant differences exist between left and right channels. The processor identifies these differential segments and reduces volume and high-frequency energy only in those portions, rather than uniformly across the entire audio signal, thereby minimizing impact on overall sound quality while achieving power savings.
3Duration of action of moving object
If the battery level difference between left and right headphones is utilized to switch main headphone role, then the overall battery endurance is extended, but the system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the processor continuously monitors and compares battery levels between left and right headphones. Based on this real-time feedback, the system automatically switches the main headphone role to ensure the headphone with higher battery level handles communication tasks. This closed-loop control extends overall battery endurance while keeping the switching logic relatively simple.
Data Source
AI summary
Wireless headphones with battery life effectively extended includes first and second headphones. The first and second headphones each with respective low battery levels remaining or very different battery levels remaining receive audio signals from an electronic device and output the sound of the audio signal after adjustments are applied to volume level and to sound quality on one side or on both sides, to reduce the consumption of battery level. Each of the first and second headphones carries a processor for intercommunication in addition to communication with the electronic device performing playback.