Sound Redirecting Case with Nested Channels

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Solution Overview

Problem

Mobile device cases often compromise sound quality and user access to device buttons and ports while providing inadequate handling options, leading to a diminished audio experience and increased risk of device drops.

Innovation Solution

A mobile device case design featuring a case body with parallel side walls, nested sound channels, and a handling strap that redirects sound emissions and provides secure handling without auxiliary electronic elements, ensuring improved sound distribution and reduced drop risk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a device case covers critical portions of the held device to provide impact protection, then protection efficacy is improved, but access to device buttons and ports is impeded

Engineering Contradiction:
Improveimpact protectionVSAvoidaccess to device buttons and ports
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The case body is divided into multiple walls (top, bottom, left, right side walls) that are selectively transparent or translucent at specific regions. This segmentation allows the case to provide protection where needed while maintaining access to buttons and ports through strategically placed transparent portions, resolving the contradiction between protection and accessibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the case body are assigned different optical properties - certain regions are opaque for protection while other regions are transparent or translucent for access. This local differentiation of material properties allows simultaneous achievement of protection and ease of operation without compromising either function.

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If a device case blocks or improperly directs sound emitted from speakers, then sound isolation is improved, but audio quality and surround sound experience are diminished

Engineering Contradiction:
Improvesound blockingVSAvoidaudio quality degradation
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The case body incorporates sound channels with specific acoustic properties in localized regions. These channels are designed to redirect sound waves from the device speakers to the user's ear while maintaining audio quality, rather than uniformly blocking sound throughout the case structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Sound channels act as intermediary structures that mediate between the device speakers and the user's ear. These channels properly direct and transmit sound waves, preventing direct blocking while maintaining audio fidelity and enabling surround sound experience through strategic positioning of sound transmission pathways.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If a device case lacks a suitable handle, then case simplicity is improved, but user handling security is reduced

Engineering Contradiction:
Improvecase structureVSAvoidhandling security
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The handle is merged with the case body structure itself rather than being a separate auxiliary component. The handle is formed as an integral part of the case body, combining the functions of protection and handling into a single unified structure, thereby maintaining simplicity while improving handling security.

Inventive Principle:
Principle #5Merging (Combining)

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

The case enhances sound quality by redirecting sound emissions and provides secure, easy handling, minimizing bulk and storage complexity while maintaining impact protection.

Implementation Method 1

a cavity wall associated with the case body, wherein the cavity wall is configured to form a sound chamber within the cavity, wherein the sound chamber is in sound communication with a speaker of the mobile device and the plurality of sound channels, thus allowing sound emitted from the speaker of the mobile device to be guided to the plurality of sound channels

Methodology Applied
Scientific EffectSound: Sound

Data Source

PatentUS11750238B1Sound redirecting case
Publication Date: 2023.09.05 MARTIN PAUL G
  • US11750238B1 patent drawing
  • US11750238B1 patent drawing
  • US11750238B1 patent drawing

AI summary

A mobile device case having a case body having a cavity configured to receive a mobile device, a plurality of sound channels nested within the case body and a cavity wall associated with the case body, wherein the cavity wall is configured to form a sound chamber within the cavity, wherein the sound chamber is in sound communication with a speaker of the mobile device and the plurality of sound channels, thus allowing sound emitted from the speaker of the mobile device to be guided to the plurality of sound channels. An advantage of the mobile device case is that the plurality of sound channels nested within the case may redirect sound from speakers on the device to allow sound to escape out of the front and back of the mobile device case, thus redirecting sound to a device user and preventing the mobile device case from muffling the sound.