CN220155171U

CN220155171U - Key for electronic percussion music performance

Info

Publication number: CN220155171U
Application number: CN202122100144.2U
Authority: CN
Inventors: 黄志坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2023-12-08
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a key for playing electronic percussion music, which comprises a key base; a plurality of keys arranged on the key base for receiving a stroke or depression from a player; a plurality of trigger areas arranged at the upper, lower or inner part of the key, each trigger area including a respective first capacitance circuit including a circuit constituted by one or more capacitances which are triggered to generate a changed capacitance value upon striking or pressing; a sensor connected to the plurality of trigger areas for sensing the varying capacitance value and converting it into a corresponding electrical signal; and a transmission interface connected with the external device and transmitting the electric signal to the external device. Because the trigger area in this scheme adopts the capacitive circuit that constitutes by electric capacity to can produce the relevant signal of telecommunication of sound with electronic musical instrument through the change of capacitance value, and then can promote the sensitivity of key.

Description

Key for electronic percussion music performance

Technical Field

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

Background

Conventional musical instruments typically generate an electrical signal associated with the sound of a musical instrument by controlling the conduction of a circuit switch by a tap on a key, and generate a sound signal based on the electrical signal. Electronic musical instruments based on such a working principle are generally low in sensitivity, and thus affect the performance effect of players.

Further, in actual performance, it is often necessary to play different types of electronic musical instruments, such as a selection of playing a xylophone, a tremolo, and the like, depending on the scene of the performance. If the instruments are carried at the same time, the whole volume is huge, and the instruments are inconvenient to carry.

Disclosure of Invention

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

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

a key base;

a plurality of keys arranged on the key base for receiving a stroke or depression from a player;

a plurality of trigger areas arranged at an upper portion, a lower portion, or an inside of the key, and wherein each trigger area includes a respective first capacitance circuit including a circuit constituted by one or more capacitances, and is triggered to generate a changed capacitance value upon the striking or pressing;

a sensor connected to the plurality of trigger zones and configured to:

sensing the varying capacitance value; and

converting the varying capacitance value into a corresponding electrical signal; and

and the transmission interface is used for being connected with external equipment so as to transmit the electric signal to the external equipment.

In one embodiment, the plurality of trigger areas includes a first type trigger area for triggering in physical contact with the key in response to a player performing a stroke and/or a depression, and/or a second type trigger area for triggering in non-physical contact with the key in response to a player performing a stroke and/or a depression.

In one embodiment, the plurality of trigger areas are made of a flexible printed circuit board and the flexible printed circuit board is a one-piece printed circuit board, or the flexible printed circuit board includes a plurality of sub-flexible printed circuit boards which constitute the flexible printed circuit board by connection.

In one embodiment, further comprising:

and a striking member and/or a pressing member for being held by a player to perform striking and/or pressing of the key so as to trigger the plurality of trigger areas.

In one embodiment, the striking and/or pressing member comprises:

a second capacitive circuit comprising a circuit of one or more capacitors to cause the triggered trigger zone to produce the varying capacitance value when the strike and/or press trigger the trigger zone.

In one embodiment, the plurality of keys are provided with an application layer for at least marking the keys, wherein the application layer is applied to an upper surface of the keys or to an outer surface of the entire keys.

In one embodiment, the transmission interface comprises a wired transmission interface and/or a wireless transmission interface for communicatively connecting with the external device and transmitting the electrical signal to the external device.

In one embodiment, the key device further comprises a control panel disposed at the key base and configured for overall control of the key and/or for setting the external device connected via the transmission interface.

In one embodiment, the trigger zone is a strike zone of one or more of a bronze gong, a tremolo, a marbain, a xylophone, and an electronic drum.

In one embodiment, the plurality of keys are made of a composite material and arranged in rows on the key base, wherein a first row is provided as a half-tone region for performance and a second row is provided as a full-tone region for performance.

Based on the above description of the aspects of the present utility model, it will be understood by those skilled in the art that the trigger area of the key in the above aspects employs a capacitive circuit constituted by a capacitance, so that an electric signal related to the sound of the electronic musical instrument can be generated by a change in the capacitance value. Compared with the existing mode of generating an electric signal by controlling the conduction of a circuit switch, the mode has stronger sensitivity, so that the playing effect of external equipment (such as an electronic musical instrument) connected with the keys can be improved. In addition, the key of the present embodiment can realize the performance of a plurality of musical instruments through the configuration of the trigger area, so that the volume of the key can be reduced.

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 the overall structure of a key for an electronic percussion performance according to an embodiment of the present utility model;

fig. 2 is a schematic diagram showing a split structure of a key for an electronic percussion performance according to an embodiment of the present utility model;

fig. 3 is a schematic view showing a performance panel of keys according to an embodiment of the present utility model;

fig. 4 is a circuit schematic showing the trigger area of the key according to the embodiment of the present utility model;

fig. 5a and 5b are exemplary structural diagrams respectively showing keys according to an embodiment of the present utility model;

fig. 6 is a schematic view showing a key arrangement according to an embodiment of the present utility model;

fig. 7 is a schematic view showing a key base according to an 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 view showing the overall structure of a key 100 for an electronic percussion performance according to an embodiment of the present utility model, and fig. 2 is a schematic view showing the split structure of the key 100 for an electronic percussion performance according to an embodiment of the present utility model. As shown in fig. 1 and 2, the key 100 of the present utility model may include a key base 101, a plurality of keys 102, a plurality of trigger areas 103, a sensor 105, and a transmission interface 106. For simplicity of description, only four keys 102 and four trigger areas 103 are exemplarily shown in fig. 1 and 2. It is to be understood that the number of keys 102 and trigger areas 103 of the present embodiment is not limited thereto, and those skilled in the art may set more keys 102 and more trigger areas 103 as needed, for example, ten or twenty keys 102 may be provided, and ten or twenty trigger areas 103 may be adaptively provided.

In one embodiment, the key base 101 may be made of metal or composite material, and may include a cavity for placing various circuit modules or the like to which the key 100 is connected. As can be seen from fig. 1 and 2, the above-described plural keys 102 may be arranged on the key base 101 for receiving a stroke or depression 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, the key 102 may also be made of a natural material, such as rubber or the like. The use of these materials can reduce the cost of the key 100.

In the embodiment shown in fig. 1 and 2, the above-described plural trigger areas 103 may be arranged at the lower portion of the key 102 (i.e., between the key base 101 and the key 102) and may be provided in such a manner that one key 102 corresponds to one trigger area 103. Each trigger region 103 in this embodiment may include a respective first capacitance circuit, where the first capacitance circuit may include a circuit composed of one or more capacitances, and is triggered to produce a varying capacitance value upon impact or pressing (the specific circuit structure and principle of the trigger region 103 will be described in detail later).

The plurality of trigger areas 103 may include a plurality of types based on different application scenarios, for example, may include a first type of trigger area that may be used for triggering physical contact with the key in response to the player performing a stroke and/or a depression. Based on this, the first type trigger zone may be configured as a touch trigger zone of a plurality of different musical instruments, for example, may be configured as a pressing zone of a tremolo, maraba or xylophone, or as a striking zone of a bronze gong or an electronic drum (e.g., an african drum, a tambour, etc.), thereby adapting to different performance requirements. While playing, the key 102 may be directly struck, or depressed by a human body (e.g., by a palm or other part of the human body), and the trigger area 103 may be triggered by a striking instrument, such as a striking member and/or a pressing member.

In addition to the first type trigger area described above, the trigger area 103 may include a second type trigger area, which may be used for triggering non-physical contact with the key 102 in response to the player performing the stroke and/or the depression, so that the human body, the striking member, or the pressing member can trigger the trigger area 103 as long as approaching without touching the key 102. In order to meet the requirements of different application scenarios, the key 100 in this embodiment may only set the first type trigger area, the second type trigger area, or both the first and second types trigger areas.

In order to clearly describe the type and layout of the trigger zone in the key, a performance panel (panel on which the trigger zone is arranged) of the key 300 according to the embodiment of the present utility model will be described in detail with reference to fig. 3. Reference numeral 301 in the figure denotes a key base. As can be seen from fig. 3, the performance panel is a performance panel of an electronic drum, which includes striking areas 302 such as a bass drum, a snare drum, a low-pass drum, and a hi-hat, and these striking areas 302 may be arranged in the manner shown in the drawing. When the drumstick (a striking member) strikes the striking area 302, for example, the striking area 302 corresponding to the snare drum, the capacitance value of the first capacitance circuit of the striking area 302 changes, so that the external device can make the sound of the snare drum.

It will be appreciated that the performance panel shown in fig. 3 described above is merely illustrative and not restrictive, and that in practical applications, the trigger zone may be arranged according to the electronic percussion instrument implemented. For example, the above-described trigger area may also be configured as a corresponding trigger area of a bronze gong, an electronic organ, or a percussion instrument (e.g., a xylophone, a tremolo, a maroon, or the like), and may be configured as a first type trigger area and/or a second type trigger area, so that a performance function of the bronze gong, the electronic organ, or the percussion instrument may be realized by a touch or a non-touch type tap of the key. It follows that by configuring the trigger area, the playing of a plurality of musical instruments can be achieved by one key of the present scheme, so that the volume of the key can be reduced.

In one embodiment, the plurality of trigger areas 103 may be made of a flexible printed circuit board, and the flexible printed circuit board may be a monolithic printed circuit board or include a plurality of sub-flexible printed circuit boards, which may be connected to form the flexible printed circuit board. Based on this, a plurality of the above-described first capacitance circuits may be printed on the printed circuit board, thereby realizing the functions of the respective trigger areas 103. In some application scenarios, the plurality of sub-flexible printed circuit boards may be mechanically connected. The mechanical connection may be a fixed connection, such as riveting, so that a secure connection between the plurality of sub-flexible printed circuit boards may be achieved. In addition, the mechanical connection mode can also be a detachable connection mode, such as clamping connection, so that the disassembly and assembly are convenient, and the carrying and the transportation can be convenient. The trigger area of the flexible printed circuit board manufacturing scheme can be curled or disassembled when the keys are transported, so that the size and weight of the keys can be reduced, the bending resistance can be improved, and the service life of the keys can be prolonged.

The type and arrangement of the trigger zone is described in detail above. The foregoing sensor 105 will be described with reference to fig. 1. As can be seen from fig. 1, the key 100 may further include a main board 104, and the sensor 105 may be disposed on the main board 104 and connected to the plurality of trigger areas 103. In this embodiment, the sensor 105 may be configured to sense a varying capacitance value generated by the trigger zone 103 and convert the varying capacitance value into a corresponding electrical signal. Specifically, the sensor 105 may include a circuit composed of an ASIC ("Application Specific Integrated Circuit") chip or a PSoC ("Programmable System on chip" programmable system on a chip) chip, for example, so that the capacitance value output by the first capacitance circuit may be sensed and detected by a combination of software and hardware. After detecting the change in the capacitance value, the sensor 105 may transmit the electric signal converted by the change in capacitance to an external device so that it outputs the sound of the corresponding instrument according to the electric signal, thereby realizing the performance of the corresponding instrument. The sensor 105 using the present embodiment can be flexibly designed by programming, so that it can accommodate different signal conversions and transmissions.

Further, in the embodiment shown in fig. 1, the transmission interface 106 may be used to connect with an external device so as to transmit the electrical signal to the external device. In one implementation, the transmission interface 106 may include a wired transmission interface to enable wired data transmission of keys and external devices. For stable and long-distance data transmission, in one implementation scenario, the wired transmission interface may be an optical fiber interface. Specifically, the optical fiber interface may include an optical transmitting circuit and an optical receiving circuit therein. The electric signal generated by the key 100 may be processed by a driving chip inside the light emitting circuit, thereby driving a light emitting element inside the light emitting circuit, such as a semiconductor Laser (LD) or a Light Emitting Diode (LED), to emit a corresponding light signal. The optical signal may then be coupled into an optical fiber and transmitted through the optical fiber to an external device.

The type of the above-mentioned wired transmission interface can be selected correspondingly according to the external device connected to the key 100. For example, when the external device is a device such as a sound source device or an audio device, a music device digital interface ("Musical Instrument Digital Interface, MIDI") and a General-purpose input/output ("GPIO") interface may be selected. MIDI is a standard of digital music, which can define various notes or play codes for a performance apparatus such as an electronic musical instrument, so that information interaction of the key 100 with devices such as a sound source device or an audio device can be realized.

When the external device is a computer or other device, a high-speed serial computer expansion bus ("Peripheral Component Interconnect Express, abbreviated as PCIE") interface, a serial peripheral interface ("Serial Peripheral Interface, abbreviated as SPI") interface, and the like may be selected. In addition, when the external device is a computer, the above-mentioned wired transmission interface may also be a standard PCIE interface, so as to implement effective and reliable data transmission between the key 100 and the computer.

The different wired transmission interfaces are described above. In another embodiment, the transmission interface 106 may further include a wireless transmission interface. The wireless transmission interface may include one or more of a bluetooth interface, an infrared interface, a WIFI interface, etc. Wireless data transmission between the key 100 and the external device can be realized through these wireless transmission interfaces, so that wiring of the key can be simplified.

Depending on the application scenario, only the above-mentioned wired transmission interface, wireless transmission interface, or both the wired transmission interface and wireless transmission interface may be provided on the key 100. In addition, when the trigger area is a flexible circuit board formed by connecting a plurality of sub-flexible printed circuit boards, the plurality of sub-flexible printed circuit boards can also be connected through the transmission interfaces 106. It can be seen that the present utility model, due to the plurality of transmission interfaces 106, can meet different requirements of the key 100, and further reduce the volume of the key 100.

According to various application scenarios, the solution of the present utility model may further comprise a processor (not shown in the figures) for further processing the aforementioned electrical signals. In this case, in one implementation, the processor here may be built into the key 100 of the present utility model and electrically connected with the sensor 105 so that it can receive an electrical signal. After receiving the electrical signal, the processor may convert the electrical signal into a signal format required by the transmission interface 106, and may further transmit the converted signal to an external device through the transmission interface 106. Further, the processor can also determine from which trigger area it comes based on the received electric signal, and thus determine the key 102 that is depressed or struck by the player. Thus, the processor can generate a position signal regarding the specific trigger area 103 (i.e., acquire a position signal of the key 101) based on the electric signal, so that the transmission interface transmits the position signal to the external device.

In one embodiment, the processor may include a micro control unit ("MCU") and a processing unit, wherein the MCU may be used to receive and process electrical signals transmitted from the plurality of sensors 105 to distinguish and locate the trigger zone. The processing unit can be realized by a digital signal processor ("DSP"), and the DSP can process the digital signals sent by the MCU, so that the real-time and rapid processing of the signals can be ensured.

In another implementation, the processor may also be a main control unit provided on the external device, and it analyzes the electric signal received from the key 100 of the present utility model, so as to determine the triggered trigger area 103 and accordingly determine the key 102 that is being struck or depressed. Based on this, the external device can call the sound source data corresponding to the trigger area 103 (i.e., the sound source data corresponds to the key 102) from its memory (e.g., an IC sound source memory) to audibly output the sound source data. In order to facilitate the corresponding call of the sound source data according to the triggering of the triggering area 103, the sound source data in the above-mentioned IC sound source memory may be set to a form corresponding to each triggering area 103 one by one (i.e., corresponding to each key 102 one by one).

In one application scenario, the sound source data may include data related to a tone color and/or sound effect of at least one electronic musical instrument, for example. According to the foregoing embodiments, the at least one electronic musical instrument herein may include, but is not limited to, one or more of a bronze gong, a tremolo, a maraba, a xylophone, and an electronic drum. According to the relation between the trigger areas and the sound source data, the key can be provided with different numbers of trigger areas 103 and different sound source data corresponding to the trigger areas 103, so that the external equipment can present the same playing effect as the traditional various electronic musical instruments.

In summary, the trigger area 103 of the key 100 of the present utility model can employ a capacitive circuit composed of capacitances, so that the key 100 can generate an electric signal related to the sound of the electronic musical instrument by a change in capacitance value. Therefore, compared with the existing mode of generating the electric signal by controlling the conduction of the circuit switch, the mode has stronger sensitivity, so that the playing effect of the external device (such as an electronic musical instrument) connected with the key 100 can be improved.

The structure and principle of the key of the present utility model are described above in connection with the embodiments. It will be appreciated that the above-described structure is merely illustrative and not restrictive, and that the skilled person can also adapt it to the requirements of different application scenarios, as desired. The trigger area 103 may also be arranged, for example, at the upper portion or inside the key 102, which will not be described in detail here.

Fig. 4 is a circuit schematic showing the trigger zone 400 of the key according to the embodiment of the present utility model. As shown in fig. 4, the trigger zone 400 of the key of the present utility model may include a trigger zone formed by a sensing capacitor C _m And resistance R _O A first capacitive circuit is formed, and the first capacitive circuit is connected to the sensor 401. In the first capacitance circuit, a capacitance C is induced _m Is a sense capacitance formed between the key 402 disposed at the upper portion of the trigger zone 400 and the ground. When the key is pressed by a human hand, the key 402 is contacted, so that a new capacitor C can be induced between the human hand and the ground _o . The new capacitor C _o With the capacitor C _m The parallel connection makes the capacitance value of the sensing electrode on the key 402 become larger. Based on this, the processor built in or external to the key can detect the position where the key is struck or depressed by detecting the change in the capacitance value.

The arrangement of the sensing electrode in the form of a key as described in the above embodiment can reduce the abrasion thereof, thereby improving the service life. In addition, an insulating layer (for example, made of glass or plastic) may be provided outside the key 402, so that the safety of the human body when the human body contacts the insulating layer can be ensured. Further, a cover layer of toughened glass, polycarbonate, polyester or acrylic material may also be disposed over the key 402, thereby making it convenient to clean. Alternatively or additionally, the keys 402 may also be designed in a streamlined configuration to enhance their touch feel. Besides the above-mentioned key form, the above-mentioned sensing electrode may be designed into the form of a roller or a sliding bar, etc., and may be printed on a PCB (a flexible printed circuit board) or made into a spring member to be inserted on the PCB.

In one embodiment, the key of the present embodiment may further include a striking member and/or a pressing member. The striking member and/or the pressing member may be adapted to be held by a player to perform striking and/or pressing of the key so as to trigger the plurality of trigger areas. The striking element and/or the pressing element may comprise a second capacitive circuit in order to cooperate with the first capacitive circuit of the triggering area. The second capacitive circuit may comprise a circuit comprising one or more capacitors, such that the triggering area may be caused to have a varying capacitance value when the striking element and/or the pressing element triggers the triggering area.

A hammer type striking member is shown in fig. 1 and 2. In this embodiment, the second capacitance circuit may be arranged at the round head portion of the hammer 107. When the first capacitance circuit and the second capacitance circuit are electrified, the internal capacitances of the first capacitance circuit and the second capacitance circuit respectively have different capacitance values. When playing a musical instrument, the player hits the key 102 with the head of the hammer 107, thereby triggering the triggering area 103 at the lower portion of the key 102, so that the capacitance value of the triggering area 103 changes. Then, the sensor 105 may generate an electrical signal according to the change of the capacitance value, and transmit the electrical signal to a processor of the external device or the built-in key 100, so that the processor of the external device may calculate the position of the key 102 according to the electrical signal, or further make the processor of the external device call the relevant sound source data to make a sound.

In order to identify and distinguish different keys for easy performance, in one embodiment, the plurality of keys 102 may be provided with a coating layer for identifying at least the keys 102. Depending on the application scene, the coating layer 501 may be applied to the upper surface of the key 102 as shown in fig. 5a, so that cost can be saved in the case of having an identifying effect. The coating 502 may also be applied to the entire outer surface of the key 102 as shown in fig. 5b, thereby providing a full protection for the key 102.

Different marks can be displayed on the coating layer to adapt to different playing requirements. For example, graphics or characters of musical instruments such as a bronze gong, a tremolo, a maraba, a xylophone, an electronic drum, and the like may be displayed, so that performance effects of different musical instruments may be achieved by pressing the corresponding keys 102. The coating layer may also display character numbers of #c, #d, #f, #g, and #a, etc. for performing a musical performance of the musical composition. Further, the coating layer can also display the figures, names and other marks of different animals, so that the sound of the corresponding animal can be played. In addition to the various marks listed above, other marks may be provided on the coating layer 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 coating layer can be made of insulating paint, plastic or rubber and the like with higher cost performance, and can also be made of high-temperature-resistant boron nitride, aluminum oxide or copper fluoride and the like. In addition, the thickness of the coating layer may be between 10 and 20 microns, preferably 15 microns. The thickness does not affect the playing of the keys 102, and can exert a protective effect on the keys 102.

Fig. 6 is a diagram showing an arrangement of keys 602 on a key base 601 according to an embodiment of the present utility model, wherein reference numeral 600 is the key as a whole of the present embodiment, and reference numeral 603 is a transmission interface of the key 600. As shown in fig. 6, the above-described plural keys 602 may be arranged in a row on the key base 601, forming a first row and a second row shown in the drawing. As can be seen from the figure, the first row may be a semitone region including note numbers #a, #b, #c, #d, and #e, etc., and the second row may be a whole tone region including note numbers C, D, E, G, A and B, etc. The number of the two rows of keys may be specifically set according to the performance requirements, for example, a first row may be set to include 5 keys 602, a second row may be set to include 6 keys 602, a first row may be set to include 10 keys 602, a second row may be set to include 15 keys 602, and the like. In addition, the two rows of keys 602 may be arranged at equal intervals as shown in fig. 6, or may be arranged at unequal intervals. For example, the spacing between the keys 602 of the second row may be set smaller than the spacing between the keys 602 of the first row, or the like.

Fig. 7 is a schematic diagram showing a key base 701 according to an embodiment of the present utility model. As can be seen from fig. 7, the key 700 of the present embodiment may further include a control panel 704 which may be disposed on one side of the key 702 on the key base 701, and may be configured for overall control of the key 700 and/or for setting an external device connected via the transmission interface 703. The control panel 704 may be connected to an external device through a transmission interface 703 of a key, and may include one or more touch keys and a display screen thereon in order to implement the above-described control, setting, and display functions of the control panel 704.

In one implementation, the touch keys may include switching keys of different kinds of electronic musical instruments, and the different kinds of musical instruments may include the aforementioned various kinds of electronic musical instruments such as bronze gons, tremolo, maraba, xylophone, and electronic drums. In another implementation, the touch keys may also include volume keys for controlling the size of the musical instrument. Further, the display screen on the control panel 704 may be a touch display screen on which the above-described touch keys may be provided, and the display screen may be further configured to display an operation interface of each touch key, a performance state of an external device, and the like, so that the volume of the control panel 704 may be reduced and the operation may be facilitated.

In one embodiment, the touch key lower portion of the control panel 704 may also be configured as one or more trigger areas, where each trigger area may include a respective third capacitance circuit comprised of one or more capacitances. The trigger regions may be configured to produce a varying capacitance value when triggered, thereby causing the sensor to output an electrical signal related to the varying capacitance value. Further, the processor may determine the touched touch key according to the electrical signal, thereby implementing a corresponding control or setting function. It will be appreciated that the keys on the control panel 704 may be mechanical keys in addition to the touch keys described above. The multifunctional panel is arranged in the embodiment, so that the volume of the key 700 can be further reduced, and the key 700 can be more convenient to carry and transport.

The principle of operation of the key of the present utility model will be described in detail below with reference to fig. 1 to 7 by taking a bronze gong as an example.

When a player needs to perform a bronze gong using the key of the present utility model, first, the sub-flexible printed circuit board can be opened and laid flat. Then, a plurality of sub-flexible printed circuit boards are connected and connected with the key base or the like so as to constitute the key required for the gong. After the hardware connection is completed, the player needs to set the key of the present utility model as a gong by touching the key on the control panel.

At the beginning of the performance, the player strikes the key with a drumstick, for example, the key represented by the note number C. Because the drumstick is close to the trigger zone, the first capacitance circuit of the trigger zone and the second capacitance circuit inside the drumstick are recombined into a new circuit. Further, the sensor senses and detects the capacitance value in the new circuit and generates an electrical signal, and transmits the electrical signal to a processor of the external device. Subsequently, the processor receives and processes the electric signal to distinguish and locate the trigger area, and inquires in the IC sound source memory to acquire sound source data associated with the key of the sound source number C, and finally plays the sound source data through a speaker or the like.

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

1. A key for electronic percussion performance, characterized by: comprising the following steps:

a key base;

a sensor connected to the plurality of trigger zones and configured to:

sensing the varying capacitance value; and

a transmission interface for connecting with an external device so as to transmit the electric signal to the external device,

wherein the plurality of trigger areas includes a first type trigger area for triggering in physical contact with the key in response to a player performing a stroke and/or a depression, and/or a second type trigger area for triggering in non-physical contact with the key in response to a player performing a stroke and/or a depression,

wherein the plurality of keys are provided with an application layer for at least marking the keys, wherein the application layer is applied to an upper surface of the keys or to an outer surface of the entire keys,

also included is a control panel disposed at the key base and configured for overall control of the key and/or for setting the external device connected via the transmission interface.

2. The key according to claim 1, wherein: wherein the plurality of trigger areas are made of a flexible printed circuit board and the flexible printed circuit board is a monolithic printed circuit board, or the flexible printed circuit board includes a plurality of sub-flexible printed circuit boards which constitute the flexible printed circuit board by connection.

3. The key according to claim 2, wherein: further comprises:

4. A key according to claim 3, wherein: wherein the striking member and/or the pressing member comprises:

5. The key according to claim 4, wherein: wherein the transmission interface comprises a wired transmission interface and/or a wireless transmission interface so as to be in communication connection with the external device and transmit the electric signal to the external device.

6. The key according to claim 5, wherein: wherein the trigger zone is a striking zone of one or more electronic musical instruments of a bronze gong, a tremolo, a maraba, a xylophone and an electronic drum.

7. The key according to claim 6, wherein: wherein the plurality of keys are made of a composite material and are arranged in rows on the key base, wherein a first row is provided as a semitone region for performance and a second row is provided as a whole tone region for performance.