Electronic Musical Instrument Input Timing Feedback for Power Switching
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Solution Overview
Problem
Users of electronic musical instruments face difficulty in determining the state or function to which they are switching during operations, particularly when switching between power on and off states, due to similar input operations requiring different duration times.
Innovation Solution
The electronic musical instrument incorporates an operation receiver, a notifier, and a controller that perform different processes based on the duration of input operations, with the notifier displaying a changing visual indication to inform the user whether the operation has continued for a reference time, thereby facilitating the selection of the correct switching action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single operation receiver is used for multiple switching operations, then the device complexity is reduced, but the ease of operation deteriorates because users cannot determine the state or function to which they are switching
Solution Approach 1:
The notifier provides real-time feedback during the input operation by displaying visual information that changes based on the elapsed time. This feedback loop allows users to understand the current operation state and expected outcome, resolving the ambiguity of single-operation-receiver usage.
Solution Approach 2:
The notifier displays information in advance of the operation completion, showing users what state they will transition to based on continuing the input operation for a specific duration. This preliminary indication helps users make informed decisions about whether to continue or cancel the operation.
2Adaptability or versatility
If different processes are performed based on input operation duration, then the adaptability of the device is improved, but the ease of operation deteriorates because users cannot determine the required duration
Solution Approach 1:
The notifier continuously provides visual feedback during the input operation, displaying information that changes as time elapses. This real-time feedback enables users to understand how long they need to continue the operation to achieve the desired function, making multi-function adaptability user-friendly.
Solution Approach 2:
The notifier uses visual changes (such as color changes or illumination changes) to indicate different operation states and time progressions. These visual cues provide intuitive information about the required operation duration without requiring users to memorize or calculate time thresholds.
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
An electronic musical instrument (1) includes an operation receiver (11) that receives an input operation, a notifier (60), and a controller (40). The controller (40) performs a first process upon duration of a detected continuation of the input operation being a reference time or longer. The controller (40) performs a second process upon duration of a detected continuation of the input operation being less than the reference time. The controller (40) causes the notifier (60) to notify a content from which it is determinable whether or not duration of a detected continuation of the input operation being the reference time or longer.