Wireless Power Audio Playback for Hidden Cables and Bass Output
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Solution Overview
Problem
Audio playback devices mounted to walls struggle with limited bass output and unsightly power cables, while wearable devices face repairability and battery waste issues.
Innovation Solution
Implementing mountable playback devices with onboard energy storage and wireless power transfer, and energy harvesters for stationary devices, along with wearable devices receiving power from accessory power devices to extend battery life and enhance repairability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If audio playback devices are mounted to walls to eliminate power cables, then power cable visibility is reduced, but bass output capability deteriorates
Solution Approach 1:
The system divides the audio frequency range into different segments, with wall-mounted devices handling mid and high frequencies while dedicated subwoofers handle low frequencies. This segmentation allows wall-mounted devices to be cable-free while bass output capability is maintained through separate subwoofer units.
Solution Approach 2:
The patent combines multiple playback devices into a coordinated system where wall-mounted devices and subwoofers work together. The subwoofers provide bass output while wall-mounted devices provide cable-free mid and high frequency playback, merging their capabilities to resolve the contradiction.
2Ease of operation
If wearable devices use integrated batteries to enable portability, then device functionality is improved, but repairability and battery waste issues worsen
Solution Approach 1:
The wearable device system is segmented into a main device unit and a separate power device. The power device can be detached and replaced independently, allowing battery replacement without replacing the entire wearable device, thus improving repairability while maintaining portability.
Solution Approach 2:
The system allows for the discarding of depleted power devices and recovery of the main device unit. Used power devices can be recycled or replaced, separating the disposable battery component from the valuable main device, thereby improving repairability and reducing waste.
3Reliability
If wall-mounted devices use wired power connections to ensure continuous power supply, then power reliability is improved, but aesthetic appearance deteriorates due to visible cables
Solution Approach 1:
The power cable connection is extracted and relocated to a hidden location behind the wall-mounted device. The power connection point is positioned at the rear of the device, allowing cables to be concealed behind the device rather than being visible in front, thus improving aesthetic appearance while maintaining reliable power supply.
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
Enhances audio playback capabilities by maintaining bass output and reducing power cable visibility, extends battery life in wearable devices, and promotes recyclability and repairability.
Implementation Method 1
playback devices with energy harvesters
Implementation Method 2
mountable playback devices with onboard energy storage
Implementation Method 3
wireless power transfer
Data Source
AI summary
Disclosed herein are systems and methods for power transmission between playback devices, systems and methods for energy harvesting and distribution for audio playback devices, and systems and methods for wirelessly powering wearable audio playback devices.