Electronic Percussion Instrument Displacement Detection
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Solution Overview
Problem
Conventional electronic high hat cymbals with two cymbals struggle to accurately simulate the performance feel of acoustic high hat cymbals due to errors in detecting the displacement of the top cymbal relative to the bottom cymbal, as they rely on pedal depression detection rather than direct displacement measurement.
Innovation Solution
An electronic percussion instrument with a single cymbal that includes a pedestal, a vertical shaft, a flexible striking surface, and dual detection sections to accurately detect vibrations and vertical displacement, allowing for precise simulation of the acoustic high hat cymbal experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pedal depression detection is used to detect cymbal position, then the device complexity is reduced, but the measurement precision of cymbal displacement is insufficient
Solution Approach 1:
A rolling section is introduced as an intermediary component between the cymbal and the detection section. The rolling section converts the cymbal's vertical displacement into rotational movement, which is then detected by the detection section. This intermediary mechanism enables indirect but accurate measurement of cymbal displacement without requiring direct contact or complex sensor arrays.
Solution Approach 2:
The patent replaces complex mechanical position detection systems with a simpler electrical detection mechanism. Instead of using multiple sensors or complex mechanical linkages to track cymbal position, the invention uses a rolling section coupled with an electrical detection section that measures displacement through electrical signal changes, thereby reducing overall system complexity while improving measurement precision.
2Adaptability or versatility
If two cymbals are used to simulate acoustic high hat, then the performance feel is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The invention extracts and retains only the essential functional characteristic of the acoustic high hat cymbal (the ability to produce specific timbre through displacement) while eliminating the unnecessary second cymbal component. By using a single cymbal with a pedestal that enables controlled displacement, the patent maintains the acoustic simulation capability while significantly reducing structural complexity.
Solution Approach 2:
Instead of using two physical cymbals, the patent creates a virtual representation of the acoustic high hat's displacement characteristic through a single cymbal mounted on a movable pedestal. The pedestal's movement replicates the relative displacement between two cymbals, thereby copying the essential acoustic behavior without requiring the full physical structure.
3Device complexity
If a single cymbal is used, then the device complexity is reduced, but the performance feel may be compromised
Solution Approach 1:
The patent introduces dynamic movement to the single cymbal system through the movable pedestal. The pedestal can displace vertically in response to pedal input, causing the single cymbal to move relative to the striking surface. This dynamic capability enables the single cymbal to simulate the timbral variations of a two-cymbal acoustic high hat, thereby maintaining performance feel despite the reduced component count.
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 solution enables a more accurate simulation of the acoustic high hat cymbal performance feel by directly detecting the displacement of the single cymbal, reducing component count and manufacturing costs while maintaining the fidelity of the acoustic experience.
Implementation Method 1
a first detection section that detects vibrations when the striking surface is struck
Implementation Method 2
a second detection section that detects the vertical displacement of said striking surface
Implementation Method 3
a flexible body that moves up and down in response to the movement of the vertical shaft
Data Source
AI summary
An electronic percussion instrument with a single cymbal and a displacement detection apparatus that detects the displacement of an electronic cymbal. The electronic percussion instrument is designed to allows users to simulate the performance feel of an acoustic cymbal with two cymbals. The single cymbal of the instrument moves vertically in conformance with the depression of a pedal to simulate the “open” and “closed” positions of an acoustic cymbal. The displacement detection apparatus electronically detects the vertical displacement of the cymbal in the electronic percussion instrument through measuring resistance change of the detector in conformance with the movements of the cymbal.