Vehicle Media Playback Pause Control Using Sound Level Deviation
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Solution Overview
Problem
Existing media playback systems in vehicles are not user-friendly, as they require complex interfaces and fine motor skills to operate, are difficult to control while driving, and often drain battery power, with limited access to personalized media content due to network limitations and connectivity issues.
Innovation Solution
A personal media streaming appliance (PMSA) system designed for vehicle use, featuring a simplified interface, voice interaction, and noise-cancellation technology, which connects directly to a media content server via cellular networks or a mobile hotspot, allowing for easy control and playback of personalized media content without draining battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile devices are used for media playback in vehicles, then personalized media content access is improved, but ease of operation deteriorates due to complex interfaces and legal restrictions
Solution Approach 1:
The system separates the media playback functionality from the vehicle's existing audio system by introducing a dedicated media playback device that interfaces with the vehicle audio system through standardized connections (AUX, Bluetooth, USB). This segmentation allows the playback device to provide personalized content access while the vehicle audio system handles the complex audio processing, resolving the contradiction between personalized access and operational simplicity.
Solution Approach 2:
The media playback device acts as an intermediary between the user's personal media sources (mobile devices, streaming services) and the vehicle's audio system. It provides a simplified control interface for users while maintaining compatibility with various audio systems, thus improving ease of operation without sacrificing personalized content access capability.
2Ease of operation
If typical media sources (radios, fixed media players) are used in vehicles, then ease of operation is improved, but adaptability deteriorates due to limited media content catalogs
Solution Approach 1:
The media playback device is designed with multi-functionality to play various media formats (audio files, streaming content, Bluetooth audio) while maintaining a simple control interface. It universally interfaces with different vehicle audio systems through multiple connection types, providing both ease of operation and access to diverse media content catalogs simultaneously.
3Measurement precision
If sound level monitoring is implemented, then media playback control accuracy is improved, but device complexity increases
Solution Approach 1:
The media playback device uses the vehicle's existing audio system speakers to play test tones and monitor the output through the vehicle's own microphones. This self-service approach allows the device to measure sound level accuracy without requiring separate monitoring hardware, thus improving measurement precision while minimizing additional device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a convenient, personalized media experience in vehicles by simplifying playback control, reducing noise interference, and minimizing data and power consumption, allowing users to easily access and enjoy their preferred media content during travel.
Implementation Method 1
noise-cancellation technology
Data Source
AI summary
An example system for playing media content with a media playback device in a vehicle can be programmed to obtain a sound measurement indicative of a sound level associated with playback of the media content by the media playback device in the vehicle. The example system also can determine a deviation in an expected sound level based upon the sound measurement. Finally, the system can modify playback of the media content by the media playback device (110) based upon the deviation.