Interactive Language Coaching for Automated Pronunciation Feedback

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Solution Overview

Problem

Language learning for children is challenging due to the difficulty in providing one-on-one attention, feedback, and scoring by teachers, especially when live feedback is required for effective learning.

Innovation Solution

A language coaching apparatus equipped with sensors, a user interface, and a controller that interacts audibly and visually to facilitate language learning by presenting words, evaluating recitations, generating scores, and providing feedback, including facial expressions and gestures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If teachers provide one-on-one attention and live feedback to each student, then language learning effectiveness is improved, but teacher workload and time requirements increase significantly

Engineering Contradiction:
Improvelanguage learning effectivenessVSAvoidteacher time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system enables students to receive automated pronunciation feedback and evaluation without requiring direct teacher intervention. The speech recognition technology allows students to practice independently, with the system automatically assessing their recitation and providing corrective feedback, thus making the learning process self-service oriented.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements automated feedback mechanisms where the speech recognition system continuously monitors student recitation, compares it with correct pronunciations, and provides immediate feedback on pronunciation accuracy. This creates a closed-loop feedback system that was previously only available through direct teacher-student interaction.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If teachers evaluate and score each student's performance individually, then assessment accuracy is improved, but the complexity of the evaluation process increases

Engineering Contradiction:
Improveperformance evaluation accuracyVSAvoidevaluation system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system replaces the manual mechanical evaluation process with automated speech recognition technology. The speech recognition system objectively measures pronunciation accuracy by comparing student recitation against reference phonemes, eliminating the need for manual teacher assessment while maintaining or improving measurement precision.

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

Solution Approach 2:

The system creates digital copies of correct pronunciations and student recitations, allowing for repeated comparison and evaluation. The speech recognition system generates phoneme-level transcriptions of student speech that can be automatically compared with reference phoneme sequences, enabling precise automated scoring.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If multiple sensors and interactive features are added to the language coaching apparatus, then user engagement and learning effectiveness are improved, but device complexity increases

Engineering Contradiction:
Improveinteractive learning capabilityVSAvoidapparatus structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system integrates multiple sensors (microphone for speech recognition, camera for facial expression analysis, touch screen for user interaction) into a single multi-functional language coaching apparatus. Each sensor serves multiple purposes: the microphone captures both pronunciation for evaluation and ambient sound for context, the camera monitors both facial expressions for engagement analysis and can guide user attention, and the touch screen provides both input and visual feedback.

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

Data Source

PatentUS12488700B2Learning coaching apparatus and system
Publication Date: 2025.12.02 THE EDUCATION UNIV OF HONG KONG
  • US12488700B2 patent drawing
  • US12488700B2 patent drawing
  • US12488700B2 patent drawing

AI summary

A language coaching apparatus includes a chassis, one or more sensors disposed on or within the chassis, wherein the one or more sensors are configured to record an audible recitation by a user, a user interface disposed on the chassis, wherein the user interface is configured to present one or more words on the user interface, wherein the language coaching apparatus is configured to interact audibly and/or visually with the user to assist with learning a language.