Wearable Voice Communication With Ambient Noise Filtering

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Solution Overview

Problem

Recreational vehicle users face challenges in communicating effectively due to ambient noise interference from engine, tire, and wind sounds, which hinder voice reception and detection during rides, and existing solutions do not adequately address the need for efficient noise cancellation and communication channel establishment.

Innovation Solution

A wearable device equipped with an exterior microphone, processor, and speaker that performs active noise control using machine learning algorithms to filter ambient noise, and a method for establishing communication channels with recreational vehicles using proximity detection via radiofrequency, magnetic, and sound waves, enabling efficient voice reception and communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If microphones are used to capture user's voice during rides, then voice communication is enabled, but ambient noise (engine noise, tire noise, wind noise) is also captured reducing voice clarity

Engineering Contradiction:

Improvevoice communication reliabilityVSAvoidambient noise interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The audio signal from the microphone is segmented into different frequency components using Fast Fourier Transform (FFT). This allows the system to identify and separate voice frequencies from ambient noise frequencies, enabling selective filtering of harmful noise while preserving the user's voice for clear communication

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A processor acts as an intermediary between the microphone and the communication system. The processor analyzes the audio signal, identifies ambient noise patterns, and applies filtering algorithms to remove noise before the signal is transmitted or processed further, thereby mediating between the noisy environment and the communication requirement

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If noise filtering is applied to enhance voice clarity, then voice reception quality is improved, but processing time and computational resources are increased

Engineering Contradiction:

Improvevoice detection precisionVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary analysis of the audio signal to identify ambient noise patterns before the actual voice detection and filtering process. By pre-characterizing the noise environment, the system can apply more efficient filtering algorithms during voice communication, reducing real-time processing requirements while maintaining high voice detection precision

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts filtering parameters based on the detected ambient noise characteristics. By changing filter strength, frequency ranges, and processing intensity according to the actual noise level, the system optimizes the balance between voice detection precision and processing time, applying stronger filtering only when necessary

Inventive Principle:

Principle #35Parameter changes

3Reliability

If communication channels are established with recreational vehicles using multiple detection methods, then communication reliability is improved, but device complexity is increased

Engineering Contradiction:

Improvecommunication channel reliabilityVSAvoiddetection system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The wearable device incorporates multiple detection capabilities (radiofrequency detection, magnetic field detection, and sound wave detection) within a single integrated system. This multi-functional approach allows the device to establish communication channels through various physical phenomena, ensuring reliable communication in diverse environmental conditions while consolidating detection functions into one device

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

The wearable device effectively filters ambient noise, enhancing voice clarity and establishing reliable communication channels with recreational vehicles, thereby improving user communication and navigation experiences.

Implementation Method 1

receive audio input signals from an exterior microphone of the wearable device

Methodology Applied

Scientific EffectSound wave conversion:

Implementation Method 2

detect ambient noise from the audio input signals... detecting ambient noise using machine learning algorithms

Methodology Applied

Scientific EffectMachine learning noise detection:

Implementation Method 3

deliver the filtered audio signals to the user via a speaker of the wearable device

Methodology Applied

Scientific EffectElectrical to acoustic conversion:

Implementation Method 4

detect a recreational vehicle that is in a range of the communication device... detecting using at least one of radiofrequency fields

Methodology Applied

Scientific EffectRadiofrequency detection:

Implementation Method 5

detect a recreational vehicle that is in a range of the communication device... detecting using at least one of radiofrequency fields, magnetic fields

Methodology Applied

Scientific EffectMagnetic field detection: Magnetic Field

Data Source

PatentUS20230419942A1Systems and methods for communicating information

Publication Date: 2023.12.28 POLARIS IND INC

AI summary

Systems and methods for communicating information related to a wearable device are disclosed. Exemplary information includes audio information.