Polyphonic aftertouch musical keyboard

Abstract

The invention relates to a polyphonic after-touch music keyboard with a novel structure, which is composed of keys, an X-shaped support, a rubber membrane, a balance bar, a supporting plate, function buttons, a pressure sensing film, a reinforcement plate, a mainboard and a shell, wherein the mainboard is composed of a CPU (central processing unit), a memory, an A / D converter and a high-speed serial interface. The polyphonic after-touch music keyboard with the novel structure has the advantages that an internal structure of coordinating the X-shaped support, the rubber cap and the balance bar is adopted by the music keyboard for the first time, an effect that the key is enabled to integrally sink in a balance mode no matter what part of the key is pressed, a playing force value with high consistency is triggered, the parts, which do not have a playing function, of a traditional music keyboard are eliminated under the premise of maintaining the area of a standard playing zone, thereby greatly reducing the size of the entire musical instrument, and being convenient to carry. The polyphonic after-touch keyboard adopts an energy saving design of ultralow voltage, the internal part of the keyboard adopts the pressure sensing film and the high-speed CPU which are made of a special material, a unique programmed algorithm is coordinated, an accurate force value and mutually independent high-precision continuous value polyphonic after-touch information can be acquired through triggered by using a single rubber contact by each key, and the corresponding button can acquire glide and trill control information of the high-precision continuous value. The professional polyphonic after-touch music keyboard with the novel structure is the only instrument which can be perfectly matched with a mobile intelligent terminal to carry out music play, music composition and music production.

Description

technical field [0001] The invention belongs to the field of musical instruments, in particular to a polyphonic aftertouch musical keyboard. Background technique [0002] Existing digital music keyboards all follow the internal structure of piano keys and adopt the principle of levers. Only the parts of the keys at the front end of the lever support point belong to the playable area, and the part at the rear end of the lever support point has no performance function, but occupies a large space. A musical keyboard cannot reduce the volume of the whole piano on the premise of maintaining the standard playing area, which is not conducive to carrying. In addition, the characteristic of the lever principle is that the closer to the support point, the smaller the stroke of the up and down movement of the key, so in order to obtain enough stroke for the playable part at the front end of the lever support point, the stroke of the head of the key must be increased, resulting in the i...

AI Technical Summary

Problems solved by technology

[0002] Existing digital music keyboards all follow the internal structure of piano keys and adopt the principle of leverage. Only the key parts at the front end of the lever support point belong to the playable area, and the rear end of the lever support point has no performance function, but occupies a larger space. With a musical keyboard, it is impossible to reduce the volume of the whole piano while maintaining the standard playing area, which is not conducive to portability

In addition, the characteristic of the lever principle is that the closer the key is to the support point, the smaller the stroke of the key moves up and down. In order to obtain enough stroke for the playable part at the front end of the lever support point, the stroke of the head of the key must be increased, resulting in the inability to achieve super Thin key design

[0003] The existing digital music keyboard must use conductive rubber contacts and pressure sensing strips to obtain music performance information and press control (aftertouch) information after playing. The cost of materials is high, the structure is complex, and the sensitivity is low. Fault

[0004] With the popularization of mobile intelligent terminals such as tablets and smartphones, people have more and more demands for high-performance portable digital music keyboards. However, existing products are large in size, heavy in weight, and low in performance, which cannot adapt to changes in user needs.

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