Skill Judging Device for Virtual Instruments Using Sensor Feedback

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Solution Overview

Problem

Virtual musical instruments struggle to provide clear feedback on proper playing technique, making it difficult for users to improve their skills as they lack visual and tactile cues to guide their actions.

Innovation Solution

A skill judging device equipped with state and variations sensors, along with a notification system, that detects and analyzes the player's performance actions, determining the degree of skill based on variations in action states and providing feedback to enhance practice.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If virtual musical instruments are used to enable casual playing without actual instruments, then ease of operation and accessibility are improved, but the ability to provide feedback on playing technique deteriorates

Engineering Contradiction:

Improveease of playingVSAvoidfeedback on playing technique

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent implements a skill judging device that detects performance actions through sensors (state sensor), analyzes variations in the detected states (variations sensor), and provides feedback to the user about their playing skill level. This feedback loop resolves the contradiction by enabling users to receive technical guidance while maintaining the ease of virtual instrument play.

Inventive Principle:

Principle #23Feedback

2Device complexity

If virtual instruments are used to eliminate actual instruments, then device complexity and space requirements are reduced, but measurement precision of playing accuracy deteriorates

Engineering Contradiction:

Improvesimplicity of setupVSAvoidaccuracy of performance detection

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent replaces the mechanical precision requirements of actual instruments with sensor-based detection systems. Instead of relying on physical contact with real instrument surfaces, the system uses sensors to detect performance actions and analyzes state variations to determine playing accuracy, maintaining measurement precision while reducing physical complexity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If no actual performance area is provided, then adaptability and creativity are improved, but difficulty of detecting and measuring performance accuracy worsens

Engineering Contradiction:

Improveflexibility of performance spaceVSAvoiddetection of performance accuracy

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces an intermediary detection system that bridges the gap between the virtual performance space and accuracy measurement. The state sensor detects performance actions, the variations sensor analyzes state changes, and the skill judging portion evaluates accuracy - creating a measurement chain that works effectively in virtual spaces without physical constraints.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9406242B2Skill judging device, skill judging method and storage medium

Publication Date: 2016.08.02 CASIO COMPUTER CO LTD

AI summary

Every time a performance action is played with a performance appliance, a state of each performance action is detected. A degree of variations of the states of the performance actions is detected by using a variations sensor and a degree of skill of the performance action is judged and notified based on the result detected by the variations sensor.