Infrasonic Transducer Alerts Through Building Surface Vibration

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Solution Overview

Problem

Conventional assistive technology devices for individuals with hearing or visual impairments often require frequent charging and can startle non-impaired individuals with loud sounds or bright lights, failing to provide effective alerts to a broad audience.

Innovation Solution

An infrasonic alert system using transducers to generate low-frequency vibrations through surfaces like floors or walls, allowing individuals to feel alerts without the need for hearing or sight, and adaptable modes for detecting movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If mobile assistive devices are used to provide alerts, then portability and ease of use are improved, but the devices require frequent charging which reduces reliability

Engineering Contradiction:
ImproveportabilityVSAvoidoperational continuity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces electronic alert mechanisms (speakers, displays) with a mechanical vibration system. Transducers convert electrical signals into physical vibrations that travel through building structures (floors, walls, ceilings), eliminating the need for portable battery-powered devices while maintaining alert delivery reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If high-intensity sound or light alerts are used, then alert effectiveness for impaired individuals is improved, but non-impaired individuals are startled which reduces acceptability

Engineering Contradiction:
Improvealert effectivenessVSAvoidstartle effect
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent creates localized vibration alerts that travel through specific building structures (floors, walls, ceilings) to reach occupants. The vibrations are confined to the building structure rather than propagating as airborne sound waves, providing targeted alert delivery to specific locations without creating widespread disruptive effects.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses mechanical vibrations transmitted through building structures as the alert mechanism. These vibrations are perceptible to individuals with hearing or visual impairments but do not produce the loud airborne sounds or bright lights that cause startle effects in non-impaired individuals.

Inventive Principle:
Principle #18Mechanical vibration

3Adaptability or versatility

If conventional alert systems are used, then alerts are provided through traditional sensory channels, but they fail to reach individuals with both hearing and visual impairments

Engineering Contradiction:
Improvesensory channel coverageVSAvoidalert delivery to all users
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent creates a universal alert system that can be perceived through multiple sensory modalities. The vibration alerts transmitted through building structures can be felt by individuals with hearing impairments, seen by individuals with visual impairments (as structural movement), and perceived by non-impaired individuals, making the system universally accessible regardless of sensory abilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 broad audience notification of events without startling effects, ensuring alerts are received by individuals with disabilities and others in the vicinity, regardless of their sensory abilities.

Implementation Method 1

A transducer in a room or an area generates a vibration pattern in response to an alert message

Methodology Applied
Scientific EffectElectromagnetic transduction: Electromagnetic Induction

Implementation Method 2

the vibration pattern is a low-frequency vibration pattern that informs a person about the alert event when the person is in contact with a surface in the building or vehicle

Methodology Applied
Scientific EffectMechanical vibration: Vibration

Data Source

PatentUS12490230B1Infrasonic alert and notification system
Publication Date: 2025.12.02 UNITED SERVICES AUTOMOBILE ASSOCIATION (USAA)
  • US12490230B1 patent drawing
  • US12490230B1 patent drawing
  • US12490230B1 patent drawing

AI summary

The systems, methods, and devices disclose a transducer system located in a room or in an area to provide an alert to one or more persons. The transducer system includes at least a receiver, a processor and a speaker. The receiver receives an alert message sent from an alarm system or from another transducer system. The processor is configured to determine, from a plurality of notification messages, a notification message based on the alert event indicated by the alert message. Each of the plurality of notification messages corresponds to a different alert event, and each of the plurality of notification messages includes information to vibrate a speaker according to a different pre-determined vibration pattern. The speaker is moveable to generate a vibration pattern according to the determined notification message to inform a person about the alert event, wherein the speaker generates the vibration pattern in a low-frequency range.