Backpack Speaker with Vent Plenum for Targeted Low Frequency Sound
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Solution Overview
Problem
Current sound systems fail to effectively produce low-frequency sound that can create a realistic sensory experience by generating high pressure areas directly accessible to users, while minimizing unwanted sound in the surrounding environment.
Innovation Solution
A sound system comprising a low-frequency speaker without a rear enclosure, positioned to direct sound energy directly to the user, often integrated into seating or wearable forms, utilizing a vent system to enhance sound pressure and reduce energy waste by creating individual plenums for each user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a speaker produces low frequency sound to create high pressure areas for tactile and auditory response, then the sensory experience is improved, but unwanted sound spreads to the surrounding environment
Solution Approach 1:
The patent creates localized high pressure sound areas through strategically positioned speakers that generate tactile and auditory responses only in specific zones where users are positioned, while other areas remain free from unwanted sound. This is achieved by directing sound energy to specific locations rather than omnidirectional propagation.
Solution Approach 2:
The sound system divides the space into distinct zones: areas with high pressure sound for tactile response and areas without sound. Multiple speakers are positioned to create segmented sound fields, allowing different spatial regions to have different acoustic characteristics.
2Adaptability or versatility
If sound energy is distributed to fill larger spaces, then more users can be reached, but power consumption increases
Solution Approach 1:
Rather than distributing sound energy uniformly throughout large spaces, the system concentrates energy in localized zones where users are positioned. This targeted approach maintains effective user coverage while significantly reducing the total power required compared to omnidirectional sound distribution.
Solution Approach 2:
The system applies sound energy partially and selectively to specific zones rather than excessively filling entire spaces. By providing sufficient sound pressure only where needed (at user positions), the system achieves effective coverage with reduced overall energy consumption.
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
This approach allows for a more impactful auditory and tactile experience with reduced power consumption and minimized disturbance to others, as each user receives targeted sound energy, reducing the need for high power output to fill larger spaces.
Implementation Method 1
A speaker may be provided which may produce sound energy below 200 Hertz, or even below 100 Hertz... produce a low frequency output to produce a high pressure area
Data Source
AI summary
A sound system is shown in the form of a speaker with or without a speaker box. A front member may be used with an elongate open portion with a top end and a bottom end and a speaker support with the speaker mounted to the speaker support. The speaker support may be coupled to the front member with a front of the speaker facing the front member and the front of the speaker substantially aligned with the bottom end of the elongate open portion. The bottom end of the elongate open portion may be positioned adjacent to a lower portion of the back of the torso of a user and the top end of the open portion is positioned higher near the back of the torso of the user. This combination may be used in a backpack, a chair or any other similar device.