WO2023282538A1 - Système et procédé de reconnaissance automatique pour carte esclave de piano numérique - Google Patents

Système et procédé de reconnaissance automatique pour carte esclave de piano numérique Download PDF

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Publication number
WO2023282538A1
WO2023282538A1 PCT/KR2022/009428 KR2022009428W WO2023282538A1 WO 2023282538 A1 WO2023282538 A1 WO 2023282538A1 KR 2022009428 W KR2022009428 W KR 2022009428W WO 2023282538 A1 WO2023282538 A1 WO 2023282538A1
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WIPO (PCT)
Prior art keywords
board
slave
slave board
master
line
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PCT/KR2022/009428
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English (en)
Korean (ko)
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김인헌
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김인헌
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Publication of WO2023282538A1 publication Critical patent/WO2023282538A1/fr

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments

Definitions

  • the present invention relates to a system and method for automatically recognizing a slave board connected to a master board in a digital piano.
  • a digital piano is a type of keyboard designed as an alternative to the traditional piano playing method and sound. This piano provides an accurate simulation of an acoustic piano (analogue piano). Digital pianos are designed to look like regular pianos, such as upright pianos or grand pianos. The sound of the digital piano is made by using synthetic emulation or real piano samples to match the stored sound with the position of the touched key, and then transmits the stored sound through a speaker. Although there are three types of keyboards of digital pianos, 88, 76, and 61, 88 keys are mainly used.
  • Digital pianos have the advantages of lower maintenance costs than acoustic pianos, sound implemented in MIDI, built-in functions to help learning and composition, no need to use a microphone, and easy portability.
  • the keys of the digital piano are designed to give a feeling similar to that of an acoustic piano, and are velocity-responsive, so the volume and timbre of the sound played depend on the velocity of the keys.
  • Digital pianos have hammers to give the same feel as the touch of a real piano.
  • An analog sensor is placed to detect the pressing of a key, which is different from a typical electronic keyboard or synthesizer.
  • Some digital pianos have built-in pedals, but those equipped with a function of adjusting the damper by pressing the pedal for resonance, such as an acoustic piano, are very expensive.
  • Patent No. 10-1014809 suggests a keyboard structure of a digital piano.
  • the keyboard structure of the digital piano includes a frame 120' accommodating a keyboard 130', a hammer 140' rotatably installed in the keyboard 130', and a hammer 140'.
  • It is composed of a rubber switch (150') installed adjacent to the pivot point.
  • the keyboard modules are arranged side by side at regular intervals with one octave as one module to form 7 octaves.
  • FIG. S1', S2', ...Sn' are connected in series and connected to one master board (M').
  • the master board (M') identifies the unique code of the slave board governing the pressed key and the unique code of the key transmitted by the slave board, reads the corresponding sound from the memory, and transmits the sound through the volume transmission unit. output to an external output device.
  • Patent Publication No. 10-2007-0035340 discloses a keyboard keypad, a memory in which sounds are stored, and a pressure sensor for detecting and outputting the intensity of pressure generated when a specific key is input on the keyboard keypad. It is proposed to adjust the size of the volume.
  • Patent Publication No. 10-2007-0035340 discloses a keyboard keypad, a memory in which sounds are stored, and a pressure sensor for detecting and outputting the intensity of pressure generated when a specific key is input on the keyboard keypad. It is proposed to adjust the size of the volume.
  • 10-2016-59281 connects an electronic device that can be linked to a digital piano or master keyboard, communicates with a device running an application for piano playing practice, and a device through a wired or wireless communication network, and according to the request of the device
  • a digital piano that includes a web server that provides data necessary for the execution of applications, and a DB server that stores data related to applications and provides data to the web server according to requests from the web server.
  • the above patent relates to wireless communication with the keyboard of a digital piano or an external device or server of a digital piano, and does not focus on the problem of master and slave boards specific to digital pianos. If this problem is solved, it will be possible to improve the expression of the unique sound of the keyboard or communication with external devices and servers.
  • the present invention was devised to solve the problems of the prior art and prior patents described above at once.
  • an object of the present invention is to provide a system and method by which a slave board can quickly and accurately automatically recognize its own code in a digital piano, particularly a block connection type digital piano.
  • the present invention is an automatic recognition system for a slave board of a digital piano.
  • the system includes a master board and a plurality of slave boards connected in series, and respective control units are installed on each slave board.
  • a semiconductor element connected to each control unit is installed, and each semiconductor element is connected by a line connected in series to represent a physical property unique to each slave board, so that each slave board has the physical property to provide a system that automatically recognizes its own unique code by reading
  • the physical property may be a voltage value.
  • the semiconductor device may include a diode.
  • the slave unique code recognized by each slave board may be transmitted to the master board.
  • each slave board includes at least one pair of receiving and transmitting lines arranged in pairs of transmitting and receiving lines, and each slave board includes at least two switches connected to each of the receiving and transmitting lines. And, when the control unit recognizes the unique code, the switch is connected to each of the receiving line and the transmission line in a normal state to switch to a state in which data is transmitted or received with the master board.
  • Each switch control unit can include
  • the present invention is an automatic recognition system for a slave board of a digital piano, the system includes a master board and a plurality of slave boards connected in series, each slave board is provided with a respective control unit, and each slave board A semiconductor element connected to each controller is installed, and each semiconductor element is connected by a line connected in series to indicate a physical property unique to each slave board, so that each slave board reads the physical property and has its own
  • the code is automatically recognized, and the slave unique code (Ak) recognized by each slave board is transmitted to the master board, and each slave board has a slave board unique code and a keyboard unique code ( (Ak, Bj) data composed of Bj) is transmitted to the master board so that the master board (M) recognizes which key of which slave board is pressed, and the control unit of each slave board is arranged in pairs of transmission and reception lines.
  • At least one pair of receiving and transmitting lines, and each slave board includes at least two switches connected to each of the receiving and transmitting lines, and the switch is set to a normal state to each of the receiving and transmitting lines. and each switch control unit for switching to a state in which data is transmitted or received by being connected to the master board, and the switches connected to the receive line and the transmit line are different for each slave board, so that the master board is a slave board. It provides a system that recognizes.
  • the master board in a digital piano, can immediately recognize which key of a slave board is pressed only by receiving data, thereby reducing the load on the master board, and at the same time as pressing a key, the corresponding sound is accurately transmitted to the outside in real time. It can be sent to, and it has the effect that data processing is quick and reasonable.
  • FIG. 1 is a diagram showing the keyboard structure of a prior art digital piano
  • FIG. 2 is a diagram showing the electronic structure of a current digital piano
  • FIG. 3 is a structural diagram of the electronic system of the digital piano of the present invention.
  • Fig. 4 shows an example of an electronic circuit of a block type digital piano
  • FIG. 5 is a view continuing from FIG. 4 and structurally included in FIG. 4 .
  • the present invention may be composed of a combination of at least one or more of individual components and individual functions included in each embodiment.
  • FIG. 3 is a structural diagram of the electronic system 10 of the digital piano 1 of the present invention.
  • the electronic system 10 of the present invention includes one master board (M), first, second, ... , a slave module S including an n-th slave board (S1, S2, ..., Sn). Each slave board (S1, S2, ..., Sn) is connected in series, and the first slave board (S1) is directly connected to the master board (M). Each of the keyboards 100 in charge is electrically and structurally connected to each slave board (S1, S2, ..., Sn). The number of keys can be made by dividing them into 12, 24 or any suitable number.
  • the digital piano 1 of the present invention can be said to be a piano composed of a plurality of blocks.
  • Each of the control units C1, C2, ..., Cn is installed on each slave board S1, S2, ..., Sn.
  • semiconductor elements D1, D2, ..., Dn connected to respective controllers C1, C2, ..., Cn are installed on each slave board S1, S2, ..., Sn.
  • the semiconductor elements D1, D2, ..., Dn are connected from the first slave board S1 to the nth slave board Sn by a line L. If the line L is connected to, for example, a 5V external power source for driving the digital piano 1, voltages applied to the respective semiconductor elements D1, D2, ..., Dn are different.
  • the semiconductor device is a diode, the voltage values are D1, D2, ... , which increases as Dn increases.
  • the controller (C1, C2, ..., Cn) of each slave board (S1, S2, ..., Sn) detects and recognizes the voltage value applied to the semiconductor element (D1, D2, ..., Dn) in real time.
  • the control units C1, C2, ..., Cn refer to respective memories not shown. A unique voltage value corresponding to its own slave board is stored in the memory. Therefore, each slave board (S1, S2, ..., Sn) always has its own unique code ( Ak) can be found.
  • k is 1, 2, ... It is one of n, and it can be said that it is a code that informs which slave board it is.
  • a unique semiconductor device (D0) is also installed on the master board (M), which is connected to the MCU (20) of the master board (M).
  • M master board
  • the need to assign its own code is not as great as that of the slave board, and therefore, it is not an essential requirement of the present invention.
  • each slave board (S1, S2, ..., Sn) of the present invention connects to the MCU (20) of the master board (M) through each transmission line (T1, T2, ..., Tn). Connected.
  • Each of the slave boards (S1, S2, ..., Sn) transmits the slave board unique code and keyboard unique code, that is, (Ak, Bj) data to the MCU 20 through the transmission line assigned to it. Then, the master board (M) can immediately recognize which key is pressed only by receiving the data, thereby reducing the load on the master board (M), and at the same time as the key is pressed, the corresponding sound is accurately transmitted to the outside in real time. be able to send out.
  • the slave specific code does not necessarily mean data to be actively read, but is a broad concept including, for example, a signal that is converted according to a transmission/reception path of data as described below.
  • FIG. 4 shows a first slave board S1
  • FIG. 5 shows a second slave board S2 directly connected to the first slave board S1 of FIG. 4 .
  • the external configuration of the slave boards S1 and S2 is the same.
  • the master board (M) and the slave boards (S1, S2) are each connected by a connector 30 to form an electrical connection.
  • Each semiconductor device (D0, D1, D2) is installed on the master board (M) and the slave boards (S1, S2). As shown, the semiconductor devices are connected side by side by a line (L) through the connection of the connector (30). connected consistently. Since the semiconductor elements are independently connected to each other in series regardless of their own or other circuits or elements of other boards, detection values (voltage values) specific to each slave board can be accurately detected without errors.
  • the control unit C1 of the first slave board S1 includes a first receiving line 500, a first transmitting line 502, a second receiving line 504, a second receiving line 500, a first receiving line 502, a second receiving line 504, and a second receiving line 500, in which transmission and reception lines are arranged in pairs in order from the top. It includes a second transmission line 506, a third reception line 508 and a third transmission line 510. Data is received or transmitted through each line.
  • a control unit 308 and a third transmission switch control unit 310 are installed.
  • a total of six switches are arranged next to the control unit C1, and in order from the top, the first receive switch 400, the first transmit switch 402, the second receive switch 404, and the second transmit switch 406 , a third receiving switch 408 and a third transmitting switch 410.
  • the structure of each switch is the same. Normally, it defaults to contact NC (normally closed), but when the slave board recognizes its own code, it is converted to contact NO (normally open).
  • the first reception and transmission switch controllers 300 and 302 are driven so that the first reception and transmission switches 400 and 402 come into contact with NO. Therefore, the first receiving and transmitting lines 500 and 502 can transmit and receive data with the master board M. Data of the first slave may be transmitted to the master board M through the first transmission line 502 . Conversely, data necessary for the first slave board S1 can be received from the master board M through the first receiving line 500 .
  • the remaining four switches of the first slave board (S1) are connected to the master board (M) through NC and distinguished from the transmission route through NO, so the master board (M) is connected to the master board (M) from the first slave board (S1). It can be quickly and easily recognized as a signal. This process naturally becomes a process in which the master board M recognizes the unique code of the first slave board.
  • the second slave board (S2) is the same as the first slave board (S1), but when the slave board (S2) recognizes its own code (A2), it drives the second reception and transmission switch controllers (304, 306). Therefore, the second receiving and transmitting switches 404 and 406 are in contact with NO, and the remaining four switches are connected to the master board M through NC and distinguished from the transmission route through NO, so the master board M can be easily It can be recognized that the signal is from the second slave board S2 (see FIG. 5).
  • the switches 400 and 402 unique to the first slave board become NO
  • the other switches become NC
  • the second slave board has its own switches (404, 406) become NO
  • the remaining switches become NC
  • the third slave board has its own switches 408, 410 become NO
  • the remaining switches become NC
  • each slave board will have 2n switches. Although the external structure of each slave board looks the same, it will be understood that data transmitted to the master board is different according to self-recognition of the slave board.
  • FIG. 4 shows an example of a circuit diagram, and various changes are possible at the level of those skilled in the art, such as leaving only switches related thereto in each slave board and deleting the remaining switches.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La présente invention concerne un système de reconnaissance automatique pour une carte esclave d'un piano numérique, le système comprenant : une carte maître ; et une pluralité de cartes esclaves connectées en série, chacune des cartes esclaves comportant, installés sur cette dernière, une unité de commande et un dispositif à semi-conducteur connecté à chaque unité de commande, chaque dispositif à semi-conducteur étant connecté par une ligne connectée en série pour exprimer une valeur de propriété unique à chaque carte esclave, de telle sorte que chaque carte esclave reconnaît automatiquement son propre code unique en lisant la valeur de propriété.
PCT/KR2022/009428 2021-07-09 2022-06-30 Système et procédé de reconnaissance automatique pour carte esclave de piano numérique WO2023282538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0090242 2021-07-09
KR1020210090242A KR102442903B1 (ko) 2021-07-09 2021-07-09 디지털 피아노의 슬레이브 보드의 자동 인식 시스템 및 방법

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WO2023282538A1 true WO2023282538A1 (fr) 2023-01-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930014250A (ko) * 1991-12-06 1993-07-22 이헌조 전자악기의 자동반주시 필-인 제어장치
JPH07101345B2 (ja) * 1987-02-06 1995-11-01 ヤマハ株式会社 電子楽器
KR101014809B1 (ko) * 2009-04-15 2011-02-14 (주)우림 디지털 피아노용 건반
KR20110035627A (ko) * 2009-09-30 2011-04-06 (주)지능형빌딩시스템기술연구소 제어 시스템 및 이의 신호 전달 방법
JP2011155356A (ja) * 2010-01-26 2011-08-11 Denso Corp 通信用スレーブ及び通信ネットワークシステム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7101345B2 (ja) * 2018-07-27 2022-07-15 株式会社リコー 現像装置、プロセスカートリッジ、及び、画像形成装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101345B2 (ja) * 1987-02-06 1995-11-01 ヤマハ株式会社 電子楽器
KR930014250A (ko) * 1991-12-06 1993-07-22 이헌조 전자악기의 자동반주시 필-인 제어장치
KR101014809B1 (ko) * 2009-04-15 2011-02-14 (주)우림 디지털 피아노용 건반
KR20110035627A (ko) * 2009-09-30 2011-04-06 (주)지능형빌딩시스템기술연구소 제어 시스템 및 이의 신호 전달 방법
JP2011155356A (ja) * 2010-01-26 2011-08-11 Denso Corp 通信用スレーブ及び通信ネットワークシステム

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