Two-Dimensional Musical Keyboard Layout for Compact Portability
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Solution Overview
Problem
Conventional piano keyboards are inefficient in terms of space usage, making them bulky and difficult to use portably, and they do not facilitate easy identification of keys, especially for playing multiple octaves or emulating other instruments like the guitar.
Innovation Solution
A two-dimensional keyboard layout with handboards featuring subdivided front and rear key areas, allowing for comfortable thumb or finger operation and enabling the playing of two octaves with one finger by pressing between keys, along with the option to connect a strumming device for emulating guitar effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional linear piano keyboard layout is used, then the keyboard can play all notes of the chromatic scale, but the keyboard becomes large and bulky requiring special furniture or stands
Solution Approach 1:
The patent transitions from a one-dimensional linear keyboard layout to a two-dimensional grid layout where keys are arranged in rows and columns. This dimensional change allows the keyboard to pack more notes into a compact space while maintaining all chromatic scale notes, directly resolving the contradiction between versatility and size.
Solution Approach 2:
The keyboard is segmented into multiple rows, each representing a different octave, with each row containing the 12 chromatic notes. This segmentation allows the keyboard to organize notes systematically in a compact grid format, enabling all notes to be played within a reduced footprint.
2Loss of information
If a conventional linear piano keyboard is used, then the keyboard can display music notation, but the visual layout does not correspond to the physical keys making it difficult to locate notes
Solution Approach 1:
The patent introduces a second dimension to the keyboard layout where rows represent octaves and columns represent chromatic notes. This creates a direct visual correspondence between the two-dimensional grid layout and the physical key positions, making it easier to locate notes compared to the traditional one-dimensional linear arrangement.
Solution Approach 2:
Each cell in the grid corresponds to a specific note and octave, providing localized identification. The visual representation directly maps to the physical key location, creating consistent local quality throughout the keyboard that aids in rapid note location.
3Productivity
If a conventional piano keyboard is used, then the keyboard can play music, but the hand must move freely left to right spanning multiple octaves causing confusion and discomfort
Solution Approach 1:
By organizing keys into a two-dimensional grid with rows representing octaves, the keyboard allows players to access different octaves by moving vertically rather than horizontally spanning the entire keyboard. This reduces the lateral hand movement required and provides more stable hand positioning during performance.
Solution Approach 2:
The keyboard segments the musical range into discrete octave rows, allowing players to work with smaller, more manageable sections vertically. This segmentation reduces the span required across the keyboard and provides more comfortable hand positioning for playing complex passages.
4Productivity
If a conventional piano keyboard is used, then the keyboard can play notes, but playing fast passages with movement between white and black keys is difficult
Solution Approach 1:
The two-dimensional grid layout allows fast passages to be played by moving vertically between rows (octaves) rather than horizontally across the entire keyboard. This vertical movement pattern is more efficient for fast passages with frequent octave changes, improving playing speed and ease.
Solution Approach 2:
By segmenting the keyboard into octave rows, fast passages can be executed by moving between segmented sections vertically. This segmentation creates more efficient finger movement patterns for rapid octave transitions compared to the continuous horizontal layout of conventional keyboards.
5Adaptability or versatility
If a conventional piano keyboard is used, then the keyboard can play chords, but common guitar chords covering three octaves cannot be played using only one hand
Solution Approach 1:
The two-dimensional grid layout with vertical octave rows allows one hand to access chords spanning multiple octaves by moving vertically across rows. This enables the playing of guitar-style chords covering three or more octaves using a single hand, as the vertical arrangement brings distant notes within reachable distance.
Solution Approach 2:
The segmentation into octave rows allows chords spanning multiple octaves to be organized vertically, making them accessible to one hand. The segmented structure creates compact vertical groups that can be reached by a single hand, enabling complex guitar chord emulation that would be impossible on a conventional linear keyboard.
Data Source
AI summary
A musical keyboard comprises one or more handboards, where each handboard has a two dimensional arrangement of keys. The columns are formed by an octave of conventional piano keys. The rows are formed by subdividing the conventional piano keys. First the keys are subdivided into a front key area with wide white keys and optionally thin extensions of the black keys, and a rear key area with white and black keys. The front and rear key areas are each further subdivided into rows of octaves. Two octaves of a note can be played with the same finger, and a hand can span a three octave range.