CN220155172U - Keyboard for playing electronic percussion music and electronic equipment - Google Patents

Abstract

The utility model discloses a keyboard for playing electronic percussion music and electronic equipment. The keyboard comprises a keyboard body; a plurality of keys, each of which is arranged on the keyboard body and is for receiving a stroke from a player; a plurality of transducers each of which is arranged at an upper portion, a lower portion, or an inside of a corresponding key and is for: sensing mechanical energy generated by the player's stroke of the key, and performing energy conversion of the mechanical energy into electric energy to obtain an electric signal corresponding to the stroke; and the transmission interface is used for outputting the electric signals to an external device connected with the keyboard. The scheme can improve the sensitivity of the keyboard to the pressure signal receiving of the key to be struck, thereby solving the problem of insensitive pressure recognition.

Description

Keyboard for playing electronic percussion music and electronic equipment

Technical Field

The present utility model relates generally to the field of musical instruments. More particularly, the present utility model relates to a keyboard for electronic percussion performance and an electronic apparatus.

Background

A conventional percussion melody instrument emits sounds by beating keys made of a vibrating material on its keyboard, and amplifies the sounds through a resonance box or the like. Since some of the vibration materials are selected from very precious wood, the musical instrument as a whole is expensive.

During playing, the keyboard of the existing electronic percussion melody instrument controls the conduction of the circuit switch by the striking of the key, so that the electronic percussion melody instrument generates an electric signal related to the sound of the musical instrument. The electric signal generated in this way generally does not well reflect the influence of the key depression or the key stroke force on the tone and the tone color, thereby affecting the performance of the electronic percussion melody instrument.

Disclosure of Invention

To at least partially solve the technical problems mentioned in the background art, the scheme of the present disclosure provides a keyboard for electronic percussion performance and an electronic apparatus.

In a first aspect, the present utility model provides a keyboard for electronic percussion music performance, comprising:

a keyboard body;

a plurality of keys, each of which is arranged on the keyboard body and is for receiving a stroke from a player;

a plurality of transducers, each of which is arranged at an upper portion, a lower portion, or an inside of a corresponding key and is for:

sensing mechanical energy generated by the player's stroke of the key; and

performing energy conversion of the mechanical energy into electrical energy to obtain an electrical signal corresponding to the tap;

and the transmission interface is used for outputting the electric signals to an external device connected with the keyboard.

In one embodiment, the transducer comprises a sensor selected from one or both of a vibration sensor and a piezoceramic sensor.

In one embodiment, the plurality of keys are respectively arranged with key skins at least for the function of identification.

In one embodiment, the key skin is replaceable and is arranged to wrap around or cover an upper surface of the corresponding key.

In one embodiment, a plurality of supporting pieces are further included, which are arranged between the key body and the key lower portion, for connecting and supporting the key.

In one embodiment, the plurality of keys are arranged in a row and include at least two rows, wherein a first row is a semitone region for performance and a second row is a whole tone region for performance.

In one embodiment, the transmission interface includes one or more input-output ports for transmitting signals to and from an external device, wherein the plurality of input-output ports includes wired transmission ports and/or wireless transmission ports.

In one embodiment, a control panel is also included that is disposed on the keyboard body and includes one or more input options to enable configuration and control of the keyboard and/or the external device.

In a second aspect, the present utility model provides an electronic device comprising one or more keyboards according to any of the preceding claims, wherein when a plurality of said keyboards are included, said keyboards are interconnected by said transmission interface to enable joint operation of the plurality of keyboards.

In one embodiment, one or more of the following devices are included:

a sound box device;

a computer;

an audio device; and

and the sound source equipment.

Based on the above description of the solution of the present utility model, it will be appreciated by those skilled in the art that the solution described in the above embodiment can improve the sensitivity of the keyboard to the reception of the pressure signal from the key being struck, so as to solve the problem of insensitivity of pressure recognition. Meanwhile, the scheme of the utility model can also adopt various transmission interfaces (such as MIDI ports and the like) to communicate with external equipment, and is also provided with a multifunctional control panel, so that the volume of the keyboard can be greatly reduced, and the keyboard is convenient for players to play. Furthermore, the scheme of the utility model can reduce the cost, improve the tone quality and the playing hand feeling and improve the anti-interference capability.

Drawings

The above-described features of the present utility model will be better understood, and its numerous objects, features, and advantages made apparent to those skilled in the art by referencing the accompanying drawings. The drawings in the following description are only some embodiments of the present utility model and other drawings may be derived from them without inventive effort for a person skilled in the art, wherein:

fig. 1 is a schematic view showing a keyboard for electronic percussion music performance according to an embodiment of the present utility model;

fig. 2a and 2b are exemplary structural diagrams respectively showing keys according to an embodiment of the present utility model;

fig. 3 is a schematic view showing a key arrangement according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating a keyboard body according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating an electronic device according to an embodiment of the utility model;

fig. 6 is a schematic diagram showing an electronic device according to another embodiment of the present utility model;

fig. 7 is a schematic structural diagram showing an electronic device according to an embodiment of the present utility model;

fig. 8 is a schematic structural view showing an electronic device according to another embodiment of the present utility model;

fig. 9 is a schematic diagram showing an electronic device according to another embodiment of the present utility model; and

fig. 10 is a schematic diagram showing an electronic device according to another embodiment of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Fig. 1 is a schematic diagram showing a keyboard 100 for electronic percussion music performance according to an embodiment of the present utility model. As shown in fig. 1, the keyboard 100 of the present utility model may include a keyboard body 101, a plurality of keys 102, a plurality of transducers 103, and a transmission interface 105. For simplicity of description, only two keys 102 and two transducers 103 are exemplarily shown in fig. 1. It is to be understood that the number of keys 102 and transducers 103 of the present embodiment is not limited thereto, and those skilled in the art may set more keys 102 and more transducers 103 as needed, for example, ten or twenty keys 102 may be provided, and ten or twenty transducers 103 may be provided adaptively.

In one embodiment, the keyboard body 101 may be made of metal or composite material, and may include a cavity for placing various circuit modules, etc. to which the keyboard 100 is connected. As can be seen from fig. 1, each of the keys 102 described above may be arranged on the keyboard body 101 for receiving a stroke from a player. In one implementation, the key 102 may be made of one or more composite materials, such as synthetic plastics. Alternatively or additionally, it may also be made of natural materials, such as rubber or plastic. In addition to the two materials listed here, the key 102 may be made of other materials, such as wood, which are not listed here.

In the embodiment shown in fig. 1, each of the transducers 103 described above is disposed at the upper, lower or inside of the corresponding key 102, which can be used to sense mechanical energy generated by a player's stroke of the key 102 and perform energy conversion of the mechanical energy into electric energy to obtain an electric signal corresponding to the stroke. In one implementation, the transducer 103 may include a sensor. The sensor may be selected from one or more of a flexible bending sensor, a pressure sensing sensor, a vibration sensor, and a piezoelectric ceramic sensor according to the application scene.

The various sensors described above may utilize their own energy conversion characteristics to generate and output electrical signals. Taking a piezoelectric ceramic sensor as an example, it can convert mechanical energy obtained by pressing (or straining) the key 102 into electric energy in the form of electric current (or electric charge) by using the piezoelectric effect of an internal piezoelectric ceramic plate, and output the electric current. Piezoelectric ceramic wafers are a key component in piezoelectric ceramic sensors, which from a signal conversion perspective, are equivalent to a charge generator. The charge generator deforms when subjected to an external force (i.e., in the form of mechanical energy applied to the charge generator). Due to the deformation, the piezoelectric ceramic plate releases charges, so that the mechanical energy is converted into electric energy, and finally, current is generated and corresponding electric signals are output.

The magnitude of the current generated by the piezoelectric ceramic plate is related to the magnitude of the external force received by the piezoelectric ceramic plate, so that when the key 102 is struck with different striking forces, external devices connected with the keyboard 100, such as an electronic percussion melody instrument, can generate musical sounds with different magnitudes, thereby generating sound effects more similar to those when the traditional musical instrument is struck.

In addition, the piezoceramic sensor also has different sensitivities, which refer to the ratio of the output minute current increment to the corresponding input minute pressure increment. The larger the ratio, the higher the sensitivity of the piezoelectric ceramic sensor. Accordingly, the smaller the ratio, the lower the sensitivity of the piezoceramic sensor. Based on this feature, the range of the magnitude of the received tapping force can be changed by selecting piezoelectric ceramic sensors having different sensitivities. For example, a piezo-ceramic sensor with a higher sensitivity may be selected to receive a greater range of tapping forces. Accordingly, a piezoceramic sensor with lower sensitivity can be selected, so that a knocking force with a smaller range can be received. In view of this, those skilled in the art can select the piezoceramic sensors with different sensitivities according to specific requirements of the external device, for example, different playing requirements of the electronic percussion melody instrument, so as to achieve different playing effects.

Only the energy principle and specific selection method of the piezoelectric ceramic sensor are described above. Other transducers 103 may also be selected and arranged in a similar manner by those skilled in the art to meet different requirements of the external device. In one embodiment, one transducer 103 may be provided under each key 102, as shown in fig. 1. In order to increase the sensitivity to the sensing of the striking force, in another embodiment, a plurality of transducers 103, for example, 2, 3, 4, or the like may be provided under each key 102.

In the embodiment shown in fig. 1, the transmission interface 105 may be provided on the keyboard body 101, and the transducer 103 may be connected through a processor. The processor may be configured to receive the electrical signal generated by the transducer 103 and generate an output signal corresponding to the key from the electrical signal, and the transmission interface 105 may be configured to receive the output signal and transmit the same to an external device connected to the keyboard 100. In one implementation, the processor may be built into the keyboard of the present utility model or may be external to the keyboard. For example, it may be a processor in the external device described above.

In one implementation, the transmission interface 105 may include one or more input-output ports that may be used for signal transmission to and from external devices. The input/output ports may include a wired transmission port, a wireless transmission port, or both, according to application scenarios, so as to be connected to an external device by a wired and/or wireless connection.

The wired transmission ports may include different types of ports based on the external devices to which the keypad 100 is connected. For example, it may include one or more of a music device digital port ("Musical Instrument Digital Interface, MIDI for short), a fiber optic port, etc., a General-purpose input/output (" GPIO ") port, a high-speed serial computer expansion bus (" Peripheral Component Interconnect Express, PCIE ") port, and a serial peripheral port (" Serial Peripheral Interface, SPI for short). The keyboard 100 of the present embodiment may transmit an electrical signal (i.e., the above-mentioned output signal) to various external devices, such as a sound source device, an audio device, a computer, or the like, through the wired transmission ports. When the external device is a computer, the wired transmission port may be, for example, a standard PCIE port, so as to perform transmission of data to be processed.

When the external device is an electronic musical instrument or a related device thereof, the wired transmission port may also be a MIDI port. MIDI is a standard of digital music that defines various notes or playing codes for a performance apparatus such as an electronic musical instrument, and allows the electronic musical instrument or other performance apparatus to be connected, adjusted, and synchronized with each other, thereby achieving information sharing.

In yet another embodiment, the above-mentioned wired transmission port may also be a fiber port. Specifically, an optical transmit module and an optical receive module may be included within the fiber port. When the keypad 100 transmits data to an external device, an electrical signal generated therefrom may be processed through a driving chip inside the light emitting module, thereby driving a light emitting element inside the light emitting module, such as a semiconductor Laser (LD) or a Light Emitting Diode (LED), to emit a corresponding light signal. Finally, the optical signal may be transmitted to an external device through an optical fiber.

Various wired transmission ports are described above. In another embodiment, the keyboard 100 of the present embodiment may also employ various wireless transmission ports for data transmission between the keyboard 100 and external devices. For example, the wireless transmission ports may include one or more of bluetooth ports, infrared ports, WIFI ports, and the like. The keypad 100 may realize wireless data transmission of the keypad 100 and an external device through the wireless transmission ports, so that the wiring of the electronic device may be simplified.

In summary, the scheme of the utility model adopts the transducer 103 with stronger sensitivity to convert the knocking force applied to the key 102 into the corresponding electric signal, thereby improving the sensitivity of the keyboard 100 to the pressure signal received by the key 102, and solving the problem of insensitive pressure identification. Meanwhile, the scheme of the utility model can adopt various transmission interfaces to communicate with external equipment, so that the volume of the keyboard 100 is reduced.

In order to identify and distinguish different keys for easy performance, the plurality of keys 102 may be respectively provided with key skins for at least the function of identification in one embodiment. In one implementation, the key skin may be provided to be replaceable, so that the key skin may be replaced according to the application scenario. There are various ways of arranging the key skins, for example, the key skins 201 may be arranged to wrap the corresponding keys 102 in the manner shown in fig. 2a, so that the keys 102 can be fully protected. The key skin 301 may also be arranged to cover the upper surface of the corresponding key 102 in a manner as shown in fig. 2b, so that costs can be saved in the case of having an identifying effect.

In order to adapt to different playing requirements, the skin of the key can display different marks. For example, the character numbers of #c, #d, #f, #g, and #a may be displayed thereon so as to perform a performance of a musical composition. In addition, the skin of the key can also display the figures or characters of the musical instruments such as xylophone, tremolo, marban and the like, so that the playing effect of different musical instruments can be achieved by pressing the corresponding key. Further, the keys can also display the figures or names of different animals, so that the corresponding animal can play the sound. It will be appreciated that the above-listed symbols are merely exemplary and not limiting, and that a person skilled in the art may provide other symbols on the skin of the key according to different playing requirements, such as various geometric figures, etc., which will not be described in detail herein.

Based on the requirements of different application occasions, the key skin can be made of different materials. For example, it may employ thermoplastic polyurethane elastomer rubber ("Thermoplastic polyurethanes, abbreviated TPU"). The material has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance and the like, and is environment-friendly, so that the service life of the key skin can be prolonged, and the key can be well protected. Besides TPU materials, the key skin can also be made of other materials, such as silica gel. The silica gel has better adsorptivity and quick exhaust, so that the attaching effect of the key skin on the keys can be improved. In addition, the silica gel also has the characteristics of high temperature resistance and acid and alkali resistance, so that the service life of the key skin can be prolonged. The thickness of the key skin may be between 1-2 mm, preferably 1.5 mm. The thickness does not affect the playing of the key, and can protect the key.

Fig. 3 is a diagram showing an arrangement of keys 302 on a keyboard body 301 according to an embodiment of the present utility model, and reference numeral 300 in the drawing is a keyboard. As shown in fig. 3, the plurality of keys 302 described above may be arranged in a row on the keyboard body 301, and include at least an upper row and a lower row as shown in fig. 3. The upper row may be a semitone region including note numbers #c, #d, #f, #g, and #a, etc., and the lower row may include a whole tone region of note numbers C, D, E, F, G, A and B …. The number of the two rows of keys 302 may be specifically set according to the performance requirements, for example, an upper row may be set to include 5 keys 302, a lower row may be set to include 6 keys 302, or an upper row may be set to include 8 keys 302, a lower row may be set to include 10 keys 302, or the like. In addition, the two rows of keys may be arranged at equal intervals as shown in fig. 3, or may be arranged at unequal intervals. For example, the spacing between the keys of the lower row may be set larger than the spacing between the keys of the upper row, etc.

Fig. 4 is a schematic diagram illustrating a keyboard body 401 according to an embodiment of the present utility model. As can be seen in fig. 4, the keyboard 400 may also include a control panel 403 disposed on the keyboard body 401 and including one or more input options to enable configuration and control of the keyboard 400 and/or external devices. The control panel 403 may be provided on one side of the key 402 and may be connected to a processor of an external device through a transmission interface. In one embodiment, control panel 403 may include, for example, a display screen and various function keys. The different function keys may be, for example, switching keys of different kinds of musical instrument, volume keys, etc. The display screen of the control panel 403 may be configured to display the performance status of the percussion melody instrument, the switching keys of different kinds of keys may be used to select the performance modes of different kinds of percussion melody instruments such as xylophone, marban or tremolo, and the volume keys may be used to control the magnitude of the musical sound signal. Since the multifunctional control panel 403 is provided, it is possible to facilitate performance by a player.

In one embodiment, the keyboard of the present utility model may further comprise a plurality of support members 104 as shown in FIG. 1. As can be seen from fig. 1, a support 104 is disposed between the key body 101 and the lower portion of the key 102 for connecting and supporting the key 102. In one implementation, one support 104 may be provided under each key 102, and each support 104 may include a plurality of support blocks. The plurality of support blocks may be uniformly arranged below the key 102 or may be symmetrically arranged with the center line of the key 102 as a center of symmetry, so that the key 102 may be stably supported. The support 104 may also be arranged in other ways, for example in an asymmetric way, depending on the application scenario.

The above describes one implementation of the support 104 and its arrangement under the key 102. In addition to such a structure, the support 104 may have a closed structure such as a square, triangle, or ring. Based on this, the key 102 can be stably supported by providing one support 104 under each key 102, thereby simplifying the arrangement of the supports 104.

The above-described support 104 may abut against the lower surface of the key 102 and the upper surface of the keyboard body 101, and the support 104 may be connected to the key 102 and the keyboard body 101 using a connecting member. For example, both ends of the support 104 may include a connecting lug, respectively, which is screwed or riveted with the key 102 and the keyboard body 101 by a screw or a rivet. In another embodiment, the supporting member 104 may be partially inserted into a hole reserved in the keyboard body 101, so as to fix the keyboard body 101 and the keys 102.

In one embodiment, the key 102, the keyboard body 101 and the support 104 may be a tightly combined integrated structure. When the key 102 is struck to perform a performance, the key 102 undergoes a minute deformation by a pressure, and the pressure generated by the deformation can be transmitted to the transducer 103 through the above-described closely-bonded structure, so that the transducer 103 outputs a corresponding electric signal in accordance with the pressure.

In order to prevent the transducer 103 from vibrating, thereby affecting the energy conversion effect, in one embodiment, a vibration isolator (not shown in the drawings) may be provided between the key 102 and the keyboard body 101. The vibration-proof member can stop vibrating promptly after the key is struck, and is sprung up promptly to return to the state before being struck, so as to wait for the next strike. In one implementation, the vibration isolator may be a vibration isolator composite.

Fig. 5 is a schematic diagram illustrating an electronic device 500 according to an embodiment of the utility model. As shown in fig. 5, the electronic device 500 may include one or more of the aforementioned keyboards. A structure comprising a first keypad 501 and a second keypad 502 is exemplarily shown in fig. 5, wherein the first keypad 501 and the second keypad 502 may be interconnected by a transmission interface to enable joint operation of a plurality of keypads. In one embodiment, the first keyboard 501 and the second keyboard 502 may be provided respectively to correspond to different performance effects, for example, the first keyboard 501 may perform a performance of a xylophone and a tremolo, and the second keyboard 502 may perform a performance of a maraba, or the like. It can be seen that a performance effect of more types and more richness can be achieved by means of a joint operation of a plurality of keyboards.

Fig. 6 is a schematic diagram illustrating an electronic device 600 according to another embodiment of the utility model. As shown in fig. 6, the electronic device 600 may include a first keyboard 601 and external devices connected to the first keyboard 601, which may include a speaker device 602, a computer 603, an audio device 604, and a sound source device 605 as shown in the drawing. The first keypad 601 may transmit its generated electrical signals to the processors of these external devices through the transmission interface so that it performs corresponding control and processing according to the electrical signals. For example, the speaker device 602, the audio device 604, or the sound source device 605 may emit a corresponding musical instrument according to the electrical signal control, and the computer 602 may perform corresponding data processing according to the electrical signal.

The connection relationship between the keyboard 701 of the present utility model and the above-described external device and the information interaction process will be further described with reference to fig. 7. As can be seen from this figure, the electronic device 700 may include a first keyboard 701 and an external device. The keys 7011, the transducers 7012, the transmission interfaces, etc. in the first keyboard 701 are the same as those in the foregoing embodiments, and will not be described again. As can be seen from fig. 7, the external device 702 may include a transmission interface, a processor 7021, a storage unit 7023, and a sound emitting unit 7022, wherein the transmission interface, the storage unit 7023, and the sound emitting unit 7022 are respectively connected to the processor 7021.

In one embodiment, the transmission interface may be used to receive electrical signals transmitted by the keyboard 701, and the transmission interface may employ the same or similar ports as the keyboard 701 for data transmission therewith. In one embodiment, the storage unit 7023 may include an IC sound source memory. The IC sound source memory may be used to store sound source data associated with a plurality of keys. The sound source data may correspond to the keys, respectively, for example, the first sound source data may correspond to the note number B of the key shown in fig. 3, the second sound source data may correspond to the note number E of the key shown in fig. 3, or the like. In addition, the above-mentioned sound source data may include waveform data of the lowest tone to waveform data of the highest tone, where the number of sound source data is related to the number of keys. It can be understood that when the sound source data are stored in the same number of wavelengths, the bass sound occupies a larger storage space of the IC sound source memory than the sound source data corresponding to the note number of the treble sound due to the difference in the wavelength of the treble sound and the bass sound (the wavelength of the bass sound is generally longer).

In one embodiment, the sound unit 7022 may be used to output a musical sound signal corresponding to sound source data. In one implementation, the sound emitting unit 7022 may include a speaker. The speaker may include a power amplifier, a magnet, a vibrating diaphragm, a cone-shaped cone, etc., and the audio power signal may generate sound by causing the cone or diaphragm of the speaker to vibrate and resonate with the surrounding air. The speaker may be a built-in or external component of the external device 702, depending on the application scenario.

Alternatively or additionally, the power amplifier may include a first amplification circuit, a second amplification circuit, and a third power amplification circuit. The first amplifying circuit, the second amplifying circuit and the third power amplifying circuit can receive and amplify current signals of the sound source data step by step. In addition, the first amplifying circuit can receive and transmit the current signal of the sound source data with small data loss, so that the signal loss can be prevented, and the playing effect of the musical instrument sound can be ensured.

Based on the functions of the respective units described above, the processor 7021 in the external device 702 can receive an electric signal transmitted from the keyboard 701 and acquire sound source data associated with the electric signal from the storage unit 7023. After the sound source data is acquired, it can output a musical instrument sound signal corresponding to the sound source data through the sound generating unit 7022. In one embodiment, the processor 7021 may be implemented using, for example, a digital signal processor ("DSP") so that audio signals may be processed quickly in real-time.

Fig. 8 is a schematic structural diagram showing an electronic device 800 according to another embodiment of the present utility model. As can be seen from this figure, the electronic device 800 may include an a/D conversion unit 803 and a filtering unit 804 in addition to the key 801, the transducer 802, and the processor 805 described in the foregoing embodiments, and the transmission interface thereof may employ the foregoing MIDI port, and the storage unit may include a data memory 807.

In one embodiment, the a/D conversion unit 803 may include an a/D conversion chip and a peripheral circuit. The a/D conversion unit 803 may convert the analog signal output by the transducer 802, which is continuous in time and amplitude, to a discrete digital signal and transmit the digital signal to the processor 805 for processing and use thereof. In addition, the filtering unit 804 may be configured to filter the digital electrical signal and send the filtered digital electrical signal to the processor 805, so as to ensure validity of the signal received by the processor 805, and further ensure performance effect. In one implementation, the filtering unit 804 may include a filtering circuit composed of a resistor and a capacitor.

The data memory 807 may store other music data related to performance, and it may be connected to the processor 805 in various ways, such as a bus connection. Based on this, the processor 805, upon receiving the a/D converted and filtered digital signal, can acquire other music data associated with the digital electrical signal from the data memory 807, and finally output a musical instrument sound signal corresponding thereto through the sound generating unit.

An electronic device comprising a keyboard and external devices is described above in connection with fig. 5-8. It will be appreciated that the electronic device may also include a plurality of keyboards in order to provide a richer performance. For example, the electronic device 900 shown in fig. 9 may include a first keyboard 901, a second keyboard 902 through an nth keyboard 903, where N may be a positive integer greater than 2, such as 3, 4, or 5, etc. The first keyboard 901 to the nth keyboard 903 may be interconnected (sequentially connected as shown in the drawing) through a transmission interface to achieve joint operation, and may be connected to external devices such as a speaker device 904, a computer 905, an audio device 906, and a sound source device 907 through the nth keyboard 903.

In order that each keyboard can individually control performance, a plurality of keyboards of the electronic apparatus may also be connected to external apparatuses, respectively. The electronic device shown in fig. 10 may include a first keyboard 1001 and a second keyboard 1002, the first keyboard 1001 may be connected to the speaker device 1011, the computer 1012, the audio device 1013, and the sound source device 1014, and the second keyboard 1002 may be connected to the speaker device 1021, the computer 1022, the audio device 1023, and the sound source device 1024.

The structure and operation of the electronic device are described above in connection with various embodiments. It will be appreciated that these arrangements are merely illustrative and not limiting, and that those skilled in the art can make corresponding modifications in light of the teachings of the various embodiments described above to accommodate the needs of different application scenarios. Such as increasing the number of interconnected keyboards, changing or increasing the type of external device or connecting external devices with different keyboards, etc., which will not be described in detail herein.

It should be understood that the terms "first," "second," "third," and "fourth," etc. in the claims, specification and drawings of the present utility model are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprises" and "comprising" when used in the specification and claims of the present utility model are taken to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification and claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the present specification and claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As used in this specification and the claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Although the embodiments of the present utility model are described above, the descriptions are merely examples for facilitating understanding of the present utility model, and are not intended to limit the scope and application of the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.

Claims (5)

1. A keyboard for electronic percussion performance, comprising:

a keyboard body;

a plurality of keys each of which is arranged on the keyboard body and is for receiving a stroke from a player, and which are respectively arranged with key skins for at least an identification function, the key skins being replaceable and arranged to wrap around or cover an upper surface of a corresponding key;

the key comprises a key body, a plurality of keys, a plurality of supporting pieces and a plurality of supporting members, wherein the plurality of supporting pieces are arranged between the key body and the lower part of the key and are used for connecting and supporting the key, and each supporting piece comprises a plurality of supporting blocks which are uniformly arranged below the key or symmetrically arranged with the central line of the key as a symmetrical center;

the two ends of the support piece respectively comprise a connecting lug which is in threaded connection or riveting with the key and the keyboard body;

a plurality of transducers, each of which is arranged at an upper portion, a lower portion, or an inside of a corresponding key and is for:

sensing mechanical energy generated by the player's stroke of the key; and

performing energy conversion of the mechanical energy into electrical energy to obtain an electrical signal corresponding to the tap;

a transmission interface for outputting the electric signal to an external device connected to the keyboard,

the transmission interface comprises one or more input/output ports for transmitting signals to and from an external device, wherein the plurality of input/output ports comprises a wired transmission port and a wireless transmission port,

a control panel is also included that is disposed on the keyboard body and includes one or more input options to enable configuration and control of the keyboard and the external device.

2. The keyboard of claim 1, wherein the transducer comprises a sensor selected from one or both of a vibration sensor and a piezoceramic sensor.

3. The keyboard of claim 1, wherein the plurality of keys are arranged in rows and include at least two rows, a first row being a semitone region for performance and a second row being a whole tone region for performance.

4. An electronic device comprising one or more keyboards according to any of claims 1-3, wherein when a plurality of said keyboards are included, said keyboards are interconnected by said transmission interface to enable joint operation of the plurality of keyboards.

5. The electronic device of claim 4, comprising one or more of the following:

a sound box device;

a computer;

an audio device; and

and the sound source equipment.