Wearable Voice Processing System Noise Filtering

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Solution Overview

Problem

Wearable microphone-speaker devices face challenges in maintaining convenience due to the transmission of ambient noise, leading to uncomfortable user experiences and unsmooth conversations.

Innovation Solution

A voice processing system that includes a first acquisition processor for collecting voice data, a second acquisition processor for acquiring authentication information, and a control processor that executes processing on the voice data based on the authentication information, thereby improving the convenience of the wearable device by filtering out unwanted noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the microphone-speaker device transmits all acquired voice data, then the device can capture all sounds in the environment, but ambient noise from other users is transmitted causing uncomfortable feelings and unsmooth conversations

Engineering Contradiction:
Improvevoice capture capabilityVSAvoidambient noise transmission
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the relevant voice data corresponding to the wearer's speech from the total voice data collected by the microphone. The authentication information is used to identify and separate the wearer's voice from ambient noise, extracting only the useful signal for transmission while discarding harmful ambient sounds.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The authentication information acts as an intermediary between the raw voice data and the transmission process. It mediates by providing identification criteria that allow the control processor to distinguish the wearer's voice from ambient noise, enabling selective transmission of only relevant audio data.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If authentication processing is added to filter ambient noise, then convenience is improved by transmitting only wearer's speech, but device complexity increases

Engineering Contradiction:
Improveconversation smoothnessVSAvoidprocessor structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control processor performs multiple functions: it processes voice data from the microphone, handles authentication information from the authentication information acquirer, and controls the speaker output. By making the control processor multi-functional, the patent avoids adding separate dedicated hardware for authentication processing, thus managing device complexity while improving ease of operation.

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

3Productivity

If voice data is transmitted without authentication, then the transmission process is simple and fast, but ambient noise is transmitted causing degradation of convenience

Engineering Contradiction:
Improvetransmission speedVSAvoiduser comfort
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The authentication information is acquired and processed in advance before the voice transmission occurs. The control processor performs preliminary authentication processing to identify the wearer's voice characteristics, so that when voice data is collected and needs to be transmitted, the authentication criteria are already prepared, enabling quick and accurate filtering without significantly delaying transmission speed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12205597B2Voice processing system and voice processing method
Publication Date: 2025.01.21 SHARP KK
  • US12205597B2 patent drawing
  • US12205597B2 patent drawing
  • US12205597B2 patent drawing

AI summary

A voice processing system includes: a first acquisition processor that acquires voice data corrected by a microphone installed in a microphone-speaker device; a second acquisition processor that acquires authentication information of a wearer who wears the microphone-speaker device, the authentication information being acquired by an authentication information acquirer installed in the microphone-speaker device; and a control processor that executes predetermined processing related to the voice data, which is acquired by the first acquisition processor, on the basis of the authentication information acquired by the second acquisition processor.