Headrest Wing Position Detection for Dynamic Audio Signal Adjustment
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Solution Overview
Problem
Current audio output systems in vehicles fail to optimize sound distribution based on the position of audio devices, leading to suboptimal audio experience for passengers, particularly in headrests where speakers are placed.
Innovation Solution
A method and apparatus that detect the position of a headrest wing using sensors like potentiometers, encoders, or proximity sensors, adjust the audio signal based on this position, and output the adjusted signal to speakers placed within the headrest, incorporating noise cancellation and dynamic equalization to enhance sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If speakers are placed in headrests, then audio output is provided to passengers, but sound distribution is not optimized based on speaker position
Solution Approach 1:
The system dynamically adjusts audio signal parameters based on the detected headrest wing position. The controller modifies audio output in real-time as the headrest position changes, transforming a static speaker installation into a dynamic audio delivery system that adapts to varying listener positions.
Solution Approach 2:
A position sensor detects the headrest wing position and provides feedback to the controller. This feedback loop enables the system to continuously monitor and adjust audio output based on the actual physical state of the headrest, optimizing sound distribution according to the detected position.
2Adaptability or versatility
If headrest wing position is detected using sensors, then audio signal adjustment is enabled, but device complexity increases
Solution Approach 1:
The position sensor serves multiple functions: it detects headrest wing position for audio adjustment, and can potentially be used for other vehicle seat adjustment systems. By selecting a sensor with multi-functionality, the patent reduces the need for additional dedicated components, thereby limiting the increase in device complexity.
Solution Approach 2:
The controller acts as an intermediary that processes sensor data and translates it into audio signal adjustments. This mediator component simplifies the overall system architecture by centralizing the logic for position-based audio adjustment, rather than requiring complex direct coupling between sensor and speaker systems.
3Manufacturing precision
If audio signal is adjusted based on headrest position, then sound quality is improved, but processing requirements increase
Solution Approach 1:
The system adjusts audio output by modifying signal parameters such as volume, frequency response, or phase based on detected headrest position. These parameter changes are computationally efficient operations that improve sound quality without requiring intensive processing power or complex algorithms.
Data Source
AI summary
A method and apparatus that adjust audio output are provided. The method includes detecting a position of a wing of a headrest, adjusting an audio signal based on the detected position of the wing of the headrest, and outputting the adjusted audio signal.