Electronic Musical Instrument Key Operation Detection Method
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Solution Overview
Problem
Electronic wind instruments face low operability due to the difficulty in accurately pressing and avoiding incorrect key presses, especially when multiple keys need to be operated simultaneously, leading to finger slippage and incorrect pitch changes.
Innovation Solution
The implementation of restriction parts on the operation surfaces of key pairs surrounding a predetermined region, such as inclined operation surfaces and rubber parts, to prevent finger escape and ensure precise key pressing, enhancing the tactile feedback and reducing the likelihood of incorrect key activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple keys are provided on the external surface of the instrument body, then the functionality and pitch control capability are improved, but the operability deteriorates due to finger slippage and difficulty in accurately pressing specific keys
Solution Approach 1:
The operation surfaces of the keys are provided with restriction parts at specific locations to create localized tactile feedback. This local modification provides directional guidance to the player's finger, making it easier to accurately press the intended key while preventing accidental pressing of adjacent keys, thus resolving the contradiction between having multiple keys for pitch control and maintaining ease of operation
Solution Approach 2:
Restriction parts act as an intermediary element between the key operation surface and the player's finger. These restriction parts provide tactile feedback and physical guidance, mediating the interaction between the player and the keys to improve pressing accuracy without requiring changes to the overall key layout or functionality
2Speed
If keys are arranged closely to enable rapid pitch changes, then the speed of pitch modification is improved, but the reliability deteriorates due to increased likelihood of incorrect key presses
Solution Approach 1:
By providing restriction parts at specific locations on key operation surfaces, the patent creates localized tactile features that guide finger placement. This allows keys to be arranged closely for rapid pitch changes while maintaining reliability through the tactile feedback that prevents accidental pressing of wrong keys
Solution Approach 2:
The restriction parts on key operation surfaces provide tactile feedback to the player's finger. This feedback mechanism allows the player to quickly locate and press the correct key even when keys are closely arranged, maintaining both speed of pitch change and reliability of key press accuracy
Data Source
AI summary
An electronic musical instrument includes an instrument body and a plurality of keys, each of which has an operation surface operated by a player's finger is provided on an external surface of the instrument body. Among the plurality of keys, at least two keys are disposed to be adjacent to each other, and the operation surfaces of the at least two keys are configured to be inclined to descend toward between the at least two keys when viewed from a left-right direction of the electronic musical instrument.