|Publication number||CN106104671 A|
|Application number||CN 201580014303|
|Publication date||9 Nov 2016|
|Filing date||9 Mar 2015|
|Priority date||18 Mar 2014|
|Also published as||CA2945916A1, EP2959472A1, EP2959472A4, EP2959472B1, WO2015140783A1|
|Publication number||201580014303.1, CN 106104671 A, CN 106104671A, CN 201580014303, CN-A-106104671, CN106104671 A, CN106104671A, CN201580014303, CN201580014303.1, PCT/2015/50244, PCT/IL/15/050244, PCT/IL/15/50244, PCT/IL/2015/050244, PCT/IL/2015/50244, PCT/IL15/050244, PCT/IL15/50244, PCT/IL15050244, PCT/IL1550244, PCT/IL2015/050244, PCT/IL2015/50244, PCT/IL2015050244, PCT/IL201550244|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Classifications (5), Legal Events (2)|
|External Links: SIPO, Espacenet|
本发明一般涉及一种用于弦乐器的检测系统，尤其涉及一种检测和传输数据的检测系统和方法，该数据表示在弦乐器的指板上弹奏的弦乐。  The present invention relates generally to a detection system for a stringed musical instrument, in particular, relates to a method for detecting and transmitting data detection system and method, the data representing the fretboard playing stringed musical instrument string.
背景技术 Background technique
存在多种公知的设置有检测系统的弦乐器，该检测系统检测弹奏的音符。  There are many well-known stringed instrument is provided with a detection system, the detection system detects the note being played. US4635518公开了一种具有电绝缘指板的电弦乐器。 US4635518 discloses an electric stringed instrument having an electrically insulating fingerboard. 指板在沿其长度的所需点处设置有横跨其上表面附接的若干分段音柱(fret)。 Plate means disposed at a desired point along its length with a plurality of fret segments (FRET) across the upper surface of the attachment. 每一音柱包括彼此电绝缘的若干导电音柱段。 Each fret fret comprising a plurality of conductive segments electrically insulated from each other. 乐器上可设置任意数量的弦，每根弦相邻设置且与每一分段音柱的单个音柱段关联。 Any number of strings may be provided on the instrument, and disposed adjacent to each string associated with a single fret segment of each fret segment. 使用上音阶发生器(octave generator)和八度音制造器(octave dividers)来选择性提供其中一条音柱的音柱段，其至少一种公知参考频率的具有电信号。 Using the scale generator (octave generator) and octave maker (octave dividers) to selectively provide a fret wherein fret segment, at least one electrical signal having a known reference frequency. 这些弦以相对于音柱段呈间隔关系地附接至乐器上。 These strings with respect to fret segments was attached to the instrument in spaced relation. 将一弦移动来接触其中一个音柱段完成具有至少一种频率的电路，该频率等于提供给音柱段的信号频率。 The movement of a string to contact the fret segment wherein a complete circuit having at least one frequency, the frequency is equal to the frequency of the signal supplied to the fret segments. 将相同的弦移动来接触不同的音柱段完成具有至少一种不同频率的不同电路。 The same string to contact the mobile different fret segment having a different circuit is completed at least one different frequency. 同时按下多根弦同时完成若干电路，每一电路能够产生若干不同的频率。 A plurality of strings while simultaneously pressing a plurality of complete circuits, each circuit can produce several different frequencies. 乐器的幅值输出依赖于施加至每根弦的电压且通过手操作的换能器(tranducer)控制。 Depends on the magnitude of the output voltage of the instrument is applied to each string and the control by the transducer (tranducer) hand-operated.
 US2012017748公开了一种数字乐器，包括指板以及在指板上方延伸的一根或多根弦。  US2012017748 discloses a digital instrument, the finger comprising a finger plate, and one or more side plate extending strings. 该乐器进一步包括一电路以及一收发器，电路根据与弦在指板上的触点相关的位置产生数字信号，收发器将数字信号传输至基于该数字信号产生五线谱(musical notat1n)的处理装置。 The instrument further comprises a circuit and a transceiver circuit generates digital signals in accordance with the contact position of the finger plate associated string, the transceiver transmits the digital signals to the processing means for generating a staff (musical notat1n) based on the digital signal.
 US8454418公开了一种用于计算机游戏应用程序的游戏控制器，其具有一根或多根弦。  US8454418 discloses a game controller for a computer game application program, which has one or more strings. 能够将多条音柱设置在指板上以及在弦的下层。 It can be provided at a plurality of frets on the fingerboard and the lower chord in. 音柱可包括能够彼此电绝缘的导电区，且每一区域对应不同的弦。 Fret can include a conductive regions electrically insulated from each other, and each region corresponds to a different string. 能够包括复调拾取，其具有耦合至相应磁返回的多个线绕线圈，该复调拾取能够适用于由游戏控制器的用户来检测至少一根弦的弹奏。 Can include a polyphonic pickup, having a respective magnetic return coupled to a plurality of wound coils, the pickup can be applied to polyphony by the user, the game controller to detect at least one chord playing. 输出信号可从控制器发送至游戏应用程序，该游戏应用程序指示游戏控制器的指法以及弹奏游戏控制器的时刻。 Output signal may be sent from the controller to the game application, the game application indicates fingering playing time of the game controller and the game controller. 还描述了多模式设备。 Also describes a multi-mode devices. 带弦设备可用作为游戏控制器以及乐器。 The stringed device can be used as a game controller, and musical instruments.
 W02013109657公开了一种电弦乐器练习装置，其能够配置为用于执行以下步骤中的一个或多个:  W02013109657 discloses an electric stringed instrument exercise device that can be configured in the steps for performing one or more of:
检测手指位置和/或弦到手指或指板上的音柱触点何时形成合适的音符或和弦、直观地表示手指或指板上的合适位置以形成音符或和弦、以及检测何时选择弦(例如，弹奏)。  detecting the position of the finger and / or the string on the fingerboard fret or finger when a form suitable contact notes or chords, visually showing the position of a finger or suitable to form the fretboard notes or chords, and detecting any when you select string (eg, play). 电弦乐器练习装置能够以音符以及和弦形式发出声音。 Electric stringed instrument practice device can sound the note and chord forms. 电弦乐器练习装置能够包括通信模块，用于与其它计算装置进行通信，其它计算装置包括手机和平板电脑。 Electric stringed instrument exercise device can comprise a communication module for communicating with other computing devices, including mobile phones and other computing devices tablet. 电弦乐器练习装置能够与其它计算装置上的应用程序交互，以进一步协助用户学习如何弹奏弦乐器。 Electric stringed instrument training devices to interact with applications on other computing devices, to further help users learn how to play stringed instruments.
 US2013247744公开了一种配有电导体的弦乐器，该电导体与安装在弦乐器的指板中的音柱电连接。  US2013247744 discloses a stringed instrument with an electrical conductor, the electrical conductor means mounted in the stringed instrument fret board electrically connected. 所述弦乐器还配有电源、与乐器的弦电接触的发光元件(在一个实施例中，发光二极管)以及将该发明的元件电连接在一起的其它电导体。 The stringed instrument also has power supply, a light-emitting element (embodiment In one embodiment, a light emitting diode) is electrically in contact with the string instrument and the electrical elements of the invention other electrical conductors connected together. 通过将能够传输电流的任一弦按下抵靠能够传输电流的任一音柱，该音柱连接至包括所述电子元件的电路，所述电路闭合且使发光元件发光，该发光元件与被按下抵靠音柱的弦关联。 The current can be transmitted by any of a chord can be pressed against a fret transmit any current, which is connected to fret the electronic device comprises a circuit, the circuit is closed and the light emitting element emits light, the light emitting element and are associated press against the string frets.
 JP2009271484公开了一种用于感测接触/非接触的感测装置，其通过使弦和音柱处于导电状态而构成，且通过与感测装置联锁的性能装置来在用于弦乐器的性能装置中产生预设光。  JP2009271484 discloses a sensing device for sensing a contact / non-contact, by making the strings and frets is configured in a conductive state, and the performance of the device by the sensing means to the interlock for stringed musical instruments predetermined light generation performance of the apparatus.
根据本发明的一方面，提供一种与检测系统组合的弦乐器指板，所述指板具有沿其长度设置在不同位置的多条导电音柱以及在上方延伸且沿着指板长度与音柱间隔开的至少一根导电弦。  According to an aspect of the present invention, there is provided a detection system in combination with a stringed instrument fretboard, said plate means having a plurality of conductive frets along the length thereof and disposed at different positions extending over and along the length of the fretboard fret spaced apart from the at least one electrically conductive string. 所述检测系统包括连接至每一音柱的沿指板长度设置的至少一个导体；反相器，具有连接至所述导体的第一端和连接至所述至少一根导电弦的第二端，且配置为用于对从中传输通过的信号进行逻辑反相，使得当将所述至少一根导电弦按下抵靠其中一条音柱时，由此允许信号从中传输通过，所述信号以一频率在两种逻辑状态之间按顺序反相，所述频率取决于反相器和音柱之间的距离;频率检测器，用于测量所述频率；以及控制器，用于根据所述频率确定所述音柱沿指板的位置。 The detection system comprises at least one conductor coupled to each of the frets along the length of the plate means disposed; inverter having a second end connected to the first terminal conductor and connected to at least one electrically conductive string and configured to transmit a signal therethrough by logically inverted, such that when the at least one electrically conductive string is pressed against one of the fret, thereby allowing therethrough transmission of signals through the signal at a frequencies between the two logic states sequentially inverting said frequency depends on the distance between the fret and the inverter; frequency detector for frequency measurements; and a controller for determining according to the frequency refers to the position along the fret board.
所述指板能够包括多根导电弦。  The finger plate can comprise a plurality of conductive strings.
所述导体能够包括相对所述多根导电弦中的每一根设置的两个导体，使得对于全部所述多根导电弦，所述两个导体与所述多根导电弦中每一根的平均距离是相同的。  The conductors can include a plurality of conductive strings relative to said each of the two conductors arranged, such that for all of the plurality of conductive strings, said two conductors of said plurality of conductive strings each an average distance is the same.
所述导电弦能够配置为用于振动，由此产生乐音。  The electrically conductive strings can be configured for vibration, thereby generating musical tone. 所述导电弦能够包括绕在非导电芯上的导电材料。 The electrically conductive strings can include a non-conductive core wound on a conductive material. 所述导电弦和所述多条导电音柱配置为，允许从中传输低电压电流，使得不受用户手指的影响。 The electrically conductive strings and the plurality of conductive frets configured to allow the transmission from the low voltage and current, so that is not affected by a user's finger. 所述多根导电弦中的每一根能够配置为用于接收来自反相器的信号。 Each of the plurality of strings can be electrically conductive configured for receiving a signal from the inverter.
所述反相器能够配置为用于选择其中一条数据输出线，每一数据输出线连接至所述多根导电弦中的其中一根。  The inverter can be configured to select for a data output line, each data output line is connected to the plurality of conductive strings in which a.
所述组合能够包括具有输入和输出的多路分解器，所述输入配置为用于接收来自所述反相器的输入信号，所述输出配置为用于选择其中一条数据输出线，每一数据输出线连接至所述多根导电弦中的其中一根。  The composition can include a demultiplexer having an input and an output, the input configured to receive an input signal from the inverter for the output configuration selects one output line for the data, each data line is connected to the output wherein a plurality of electrically conductive string.
所述反相器配置为用于将对应逻辑I的输入电压反相为对应逻辑O的输出电压。  configured for the inverter input voltage corresponding to Logic I corresponding inverted logic O output voltage.
所述组合能够进一步包括一控制器，所述控制器配置为用于检测所述多根导电弦中的哪一根正在被按下抵靠其中一条音柱。  The composition can further include a controller configured to detect which one of said plurality of conductive strings being pressed against one of the fret.
所述控制器和所述频率检测器能够集成进CPU模块中。 The  controller and the frequency detector can be integrated into the CPU module.
所述组合能够进一步包括一电子元件，所述电子元件连接至所述反相器，且配置为用于对所述信号进行延迟，由此增加该信号的波长。  The composition can further include an electronic component, the electronic component is connected to the inverter and configured delay for the signal, thereby increasing the wavelength of the signal. 所述电子元件能够是电容器。 The electronic device can be a capacitor.
根据本发明的另一方面，提供一种检测系统，用于对在具有指板的弦乐器上弹奏的音符进行检测，所述指板设置有多条导电音柱和沿指板延伸的至少一根导电弦。  In another aspect, there is provided a detection system for playing a stringed instrument having a finger on the detecting plate note, the finger plate is provided and a plurality of conductive frets extending along the fingerboard according to the present invention the at least one conductive string. 所述检测系统包括连接至每一音柱的至少一个导体;反相器，具有连接至所述导体的第一端和连接至所述导电弦的第二端，所述反相器配置为用于对从中传输通过的信号进行逻辑反相，使得当将所述导电弦按下抵靠其中一条音柱时，由此允许信号从中传输通过，所述信号以一频率在两种逻辑状态之间按顺序反相，所述频率取决于反相器和音柱之间的距离;频率检测器，配置为用于测量所述频率；以及控制器，配置为用于根据所述频率确定所述音柱沿指板的位置，由此检测所述音符。 Coupled to said detection system comprises at least one conductor of each fret; inverter having a first end connected to the conductor and a second end connected to the conductive string, the inverter is configured to use in which the signal transmitted by logically inverted, so that when the string is pressed against the conductive fret wherein one, thereby allowing the signal transmitted therethrough by the frequency of a signal between the two logic states sequentially inverting said frequency depends on the distance between the fret and the inverter; determined according to the frequency of said frets and a controller configured to; frequency detector, configured for measuring the frequency position along the fingerboard, thereby detecting the note.
所述反相器能够配置为用于选择其中一条数据输出线，每一数据输出线配置为用于连接至乐器的一根导电弦，所述乐器具有沿其指板延伸的多根导电弦。  The inverter can be configured to select one of the data output lines for each of the data output lines configured for connection to a conducting string instrument, said instrument having a finger along which a plurality of extending plate conductive strings.
所述检测能够进一步包括具有输入和输出的多路分解器，所述输入配置为用于接收来自所述反相器的输入信号，所述输出配置为用于选择其中一条数据输出线，每一数据输出线连接至所述多根导电弦中的其中一根。  The detector can further include a demultiplexer having an input and an output, the input configured to receive an input signal from the inverter is used, configured to select one of said output data output lines for , each data output line is connected to an electrically conductive wherein said plurality of string.
所述反相器的第一端能够是输入端，所述第二端为输出端。  The first terminal of the inverter can be input, the second terminal is an output terminal. 所述反相器配置为用于将对应逻辑I的输入电压反相为对应逻辑O的输出电压。 The inverter is configured for the corresponding logical I voltage at the inverting input of a voltage corresponding to a logical O output.
所述检测系统能够进一步包括一控制器，所述控制器配置为用于检测所述多根导电弦中的哪一根正在被按下抵靠其中一条音柱。  The detection system can further include a controller configured to detect which of the more than one of the plurality of conductive strings being pressed against one of the fret.
 所述检测系统能够进一步包括一电容器，所述电容器连接至所述反相器，且配置为用于在所述信号中形成信号谐振，由此用于使信号延迟，由此增加信号波长。  The detection system can further include a capacitor, the capacitor is connected to said inverter, and configured for forming a resonance signal in the signal, whereby the signal is delayed for, thereby increasing the signal wavelength.
所述检测系统能够进一步包括一电源，用于产生通过导电弦的信号。 The  detection system can further include a power source, for generating a signal through the conductive string.
所述检测系统能够进一步包括具有输入和输出的多路分解器，所述输入配置为用于接收来自所述反相器的输入信号，所述输出配置为用于选择其中一条数据输出线，每一数据输出线连接至所述多根导电弦中的其中一根。  The detection system can further include a demultiplexer having an input and an output, the input configured to receive an input signal from the inverter is used, the output configured to select a data output line, each data line is connected to the output wherein a plurality of electrically conductive string.
所述反相器能够配置为用于选择其中一条数据输出线，每一数据输出线配置为用于连接至乐器的一根导电弦，所述乐器具有沿其指板延伸的多根导电弦。  The inverter can be configured to select one of the data output lines for each of the data output lines configured for connection to a conducting string instrument, said instrument having a finger along which a plurality of extending plate conductive strings. 所述检测系统能够进一步包括具有输入和输出的多路分解器，所述输入配置为用于接收来自所述反相器的输入信号，所述输出配置为用于选择其中一条数据输出线，每一数据输出线连接至所述多根导电弦中的其中一根。 The detection system can further include a demultiplexer having an input and an output, the input configured to receive an input signal from the inverter is used, configured to select one of said output lines for data output, each a data output line is connected to an electrically conductive wherein said plurality of string.
所述检测系统能够进一步包括一控制器，所述控制器配置为用于检测所述多根导电弦中的哪一根正在被按下抵靠其中一条音柱。  The detection system can further include a controller configured to detect which of the more than one of the plurality of conductive strings being pressed against one of the fret.
所述检测系统能够进一步包括一电子元件，所述电子元件连接至所述反相器，且配置为用于对所述信号进行延迟，由此增加该信号的波长。  The detection system can further include an electronic component, the electronic component is connected to the inverter and configured delay for the signal, thereby increasing the wavelength of the signal. 所述电子元件为电容器，所述电容器配置为用于在所述信号中形成信号谐振，由此使该信号延迟。 The electronic component is a capacitor configured to form a resonance signal in the signal, whereby the signal delay.
根据本发明的再一方面，提供一种对在具有指板的弦乐器上弹奏的乐符进行检测的方法，所述指板设置有多条导电音柱和沿指板长度延伸的至少一根导电弦，每一导电音柱连接至一导体。  According to another aspect of the present invention, there is provided a stringed instrument played on a musical note having a finger plate method of detecting the finger plate provided with a plurality of conductive frets and extending along the length of the fretboard at least one electrically conductive string, each conductor connected to a conductive fret. 所述方法包括产生通过导电弦的电信号，当将导电弦按下抵靠音柱时，所述电信号能够传输通过其中一条音柱;通过反相器对所述信号进行逻辑反相，所述反相器具有连接至导体的第一端和连接至导电弦的第二端，使得当将所述导电弦按下抵靠其中一条所述音柱时，由此允许所述信号传输通过导体，所述信号以一频率在两逻辑状态之间按顺序反相，所述频率取决于所述反相器和所述音柱之间的距离;通过频率检测器检测所述频率;根据所述频率来计算所述音柱沿指板的位置；以及根据所述位置确定在乐器上弹奏的音符。 The method includes generating an electrical signal by electrically conductive string when the string is pressed against the conductive fret, wherein the electrical signal can be transmitted through a fret; logically inverted by the signal inverter, the said inverter having a first end and a second end connected to a conductor connected to the conductive strings, such that when the string is pressed against the conductive wherein said one fret, thereby allowing the signal transmission conductor the signal at a frequency between the two logic states inverted order, the frequency depends on the distance between the fret and the inverter; frequency by said frequency detector; according to the calculating the frequency of the position along the fingerboard fret; and determining the notes played on the instrument according to the location.
根据本发明的再一方面，提供一种检测系统，用于对在具有指板的弦乐器上弹奏的音符进行检测，所述指板设置有多条间隔开的导电音柱和在所述音柱上方延伸的至少一根导电弦，每一导电音柱连接至一导体。  According to another aspect of the present invention, there is provided a detection system for playing a stringed instrument having a finger on the detecting plate note, the finger plate is provided a plurality of spaced apart electrically conductive frets and a extending over said at least one conductive fret string, each conductor connected to a conductive fret. 所述检测系统包括一电源，用于产生通过导电弦的信号。 The detection system comprises a power source, for generating a signal through the conductive string. 反相器，具有连接至导体的第一端和连接至导电弦的第二端;频率检测器，配置为用于测量所述频率；以及控制器，配置为用于根据所述频率来确定所述音柱沿指板的位置。 An inverter connected to the conductor having a first end and a second end connected to the electrically conductive string; frequency detector, configured for measuring the frequency; and a controller configured for determining based on the frequency of the said finger position along the fret board. 所述反相器配置为用于将传输通过该反相器的信号进行逻辑反相，使得当将导电弦按下抵靠其中一根所述音柱时，由此允许所述信号从中传输通过，所述信号以一频率在两种逻辑状态之间按顺序反相，所述频率取决于所述反相器和所述音柱之间的距离。 The inverter is configured for transmitting a signal logically inverted by the inverter, so that when the string is pressed against the conductive wherein said one fret, thereby allowing the signals transmitted therethrough by the signal at a frequency between the two logic states sequentially inverting said frequency depends on the distance between the inverter and the frets.
附图说明 BRIEF DESCRIPTION
为了理解本公开内容以及了解其在实际中可以如何实施，现在将参考附图仅通过非限制性示例来描述实施例，其中:  In order to understand the present disclosure, and see how it may be carried out in practice, reference will now be described an embodiment only by way of non-limiting example, wherein:
图1为根据本发明一实施例构造和操作的指板和检测系统的框图；  FIG. 1 is a finger plate and the detection system block diagram of a configuration and operation of the embodiment of the present invention;
图2为根据本发明另一实施例构造和操作的指板和检测系统的框图；  FIG. 2 is a finger plate and the detection system block diagram of a further embodiment constructed and operative in accordance with the present invention;
图3为通过图1中的检测系统来产生的示例性信号的图解表示；以及  FIG. 3 is an exemplary illustration of generating a signal by the detection system represented in FIG. 1; and
图4为通过图2中的检测系统来产生的示例性信号的图解表示。  FIG. 4 is a graphical representation of exemplary signals generated by the detection to the system 2 in FIG.
具体实施方式 detailed description
图1示出了乐器(未示出)的指板10的示意图，包括基板11，其具有横向安装在其上的多个导电音柱14a至14f以及在不接触音柱的情况下在音柱上方沿着指板的长度延伸的多根导电弦12a-12f。  FIG. 1 shows a musical instrument (not shown) of the plate means 10 a schematic view, includes a substrate 11 having a transversely mounted at 14a to 14f and the case does not contact the plurality of conductive fret fret thereon a plurality of conductive strings 12a-12f extending along the length of the fingerboard fret above. 导电弦12a-12f以及导电音柱14a-14f能够配置为，允许通过它们传输低电压电流，例如，用户感测或者影响不到的电流。 Conductive string 12a-12f and 14a-14f can be a conductive fret configured to allow transmission of the low-voltage current through them, e.g., the user or not affect the sensing current.
 导电弦14a_14f能够自由但是可控地振动。  However, the conductive vibrating string 14a_14f freely controllable. 导电弦14a_14f能够由如钢等单一材料构成，或者能够具有一种材料的芯，该芯上缠绕其它材料，例如绕有金属线的塑料芯。 14a_14f conductive strings can be made of a single material such as steel or the like, or can have a core of one material, the other material is wound on the core, for example around a plastic core metal wire. 在后一种情形中，其中一种或两种材料都由导电材料制成。 In the latter case, one or both materials are made of a conductive material.
应当理解的是，根据在其上安装指板的乐器的特定类型的要求，弦和音柱的数量能够变化。  It should be appreciated that, in accordance with their specific type claims mounting means on the instrument panel, the number of strings and frets can vary. 指板10进一步包括检测系统20，配置为用于检测其中一根弦12a-12f被按下抵靠的音柱，使得能够检测到演奏的和弦以及音符。 It refers to the detection system 10 further includes a plate 20, configured to detect a string 12a-12f which is pressed against a fret, such can be detected, and the chord notes played.
检测系统20包括沿着指板10的长度延伸且连接至每一音柱14a_14f的至少一个导体22 ο导体22能够集成在基板11内或者能够安装在基板11上。  The detection system 20 comprises a finger extending along the length of plate 10 and connected to each of the at least one conductor fret 14a_14f 22 o conductor 22 can be integrated in the substrate 11 or can be mounted on the substrate 11.
[0041 ]检测系统20，包括安装在指板10—侧上的导体22、或者两个导体22、22a，如图1和2所示，使得每一条音柱14a-14f的一个端部连接至导体22，而另一端部则连接至另一导体22a。  The detection system 20 includes a conductor mounted on the side of the finger plate 22 of the 10-, or both the conductors 22,22a, as shown in FIGS. 1 and 2, such that each fret 14a-14f is connected to one end conductor 22, and the other end is connected to another conductor 22a. 具有多于一个导体的优点将在下文中解释。 Advantage of having more than one conductor will be explained hereinafter.
检测系统20进一步包括反相器23(也称为非逻辑)，其具有输入端24a和输出端24b且配置为用于在输出端24b输出一电压，该电压表示与输入端24a处的电压相反的逻辑电平。  The detection system 20 further comprises an inverter 23 (also referred to as non-logic), having an input terminal 24a and output terminal 24b and configured to output a voltage at the output terminal 24b, which represents the voltage at the input terminal 24a voltage of opposite logic levels. 也就是说，如果输入电压对应逻辑I，则反相器的输出电压对应逻辑0，反之亦然。 That is, if the input voltage corresponding to logic I, then the output voltage of the inverter corresponds to a logic 0, or vice versa. 反相器能够是任何公知的反相器，如NC7SZ14等，或者反向放大器。 The inverter can be any known inverter, such NC7SZ14 the like, or an inverting amplifier.
反相器23的输入端24a连接至导体22、22a，使得来自其中的电信号能够通过反相器23进行逻辑反相。  The input of the inverter 23 is connected to the conductor 24a 22,22a, so that the electrical signals from which can be logically inverted by the inverter 23. 反相器23的输出端24b能够连接至弦12a-12f，使得反相信号能够传输至弦12a-12f。 Output of the inverter 23 is capable of connecting to the chord 24b 12a-12f, so that the inverted signal can be transmitted to the string 12a-12f. 由于期望检测弦被按下抵靠的音柱以及检测哪根弦12a-12f被按下，每根弦12a-12f能够单独且独立地连接至反相器23。 Since the detection of the desired chord has been pressed against the fret and the string detector 12a-12f which is pressed, each string 12a-12f can be separately and independently connected to the inverter 23. 这能够通过如下方式来完成，例如，弦12a-12f通过多路分解器(demultiplexer )30(也称为解复用(demux))连接至反相器23的输出端。 This can be done by way of, for example, string 12a-12f through the demultiplexer (demultiplexer) 30 (also referred to as a demultiplexing (DEMUX)) connected to the output terminal of the inverter 23. 多路分解器30能够包括输入32a和输出32b，输入32a配置为用于接收来自反相器23的输出端24b的输入信号，输出32b配置为用于选择多条数据输出线34a-34f中的其中一条，每一条数据输出线连接至其中一根弦12a-l 2f的终端。 The demultiplexer 30 can include an input 32a and an output 32b, 32a input configured to receive an output from the inverter 23 is a signal input terminal 24b, the output 32b configured to select a plurality of data output lines 34a-34f for the wherein one, each data line is connected to the output terminal where a string of 12a-l 2f.
多路分解器30能够配置为用于提供一周期的实例，使得在每一实例期间，其中的输出32b仅连接至其中一条数据输出线34a-34f。  The demultiplexer 30 can be configured to provide examples for a period, such that during each instance in which the output 32b is connected to only one of the data output lines 34a-34f. 输出32b能够配置为用于按顺序选择其中一条数据输出线34a-34f，使得每一条数据输出线34a-34f按顺序接收来自反相器23的信号。 Output 32b can be configured to sequentially select one of the data output lines 34a-34f, such that each of the data output lines 34a-34f receives a signal from the inverter 23 in order. 由于每一条数据输出线34a-34f连接至其中一根导电弦12a-12f，因此由于多路分解器30的操作且输出信号能够通过多路分解器30来传输，而使得以一次一根的方式将导电弦12a-12f依次连接至反相器23的输出端24b。 Since each of the data output lines 34a-34f which is connected to an electrically conductive string 12a-12f, and therefore since the operation and the output signal 30 of the demultiplexer 30 can be transmitted by the demultiplexer, the one to one manner the conductive string 12a-12f are sequentially connected to the output terminal of inverter 23 24b.
 替代地，反相器23的输出端24b能够通过如MAX459x等模拟开关连接至弦12a-12f。  Alternatively, the output of the inverter 23, 24b to function as an analog switch is connected to other MAX459x string 12a-12f through.
检测系统20进一步包括频率检测器和控制器，频率检测器配置为用于检测输出端24b的信号频率，控制器的目的在下文详细讨论。  The detection system 20 further comprises a frequency detector and a controller, a frequency detector configured to detect the signal frequency of the output terminal 24b, the purpose of the controller is discussed in detail below. 频率检测器和控制器能够集成在CPU模块35中，CPU模块35连接至反相器23的输出端24b。 Frequency detector, and a controller can be integrated in the CPU module 35, 35 is connected to the output of the inverter 23 end of the CPU module 24b. 应当理解的是，由于导电弦12a-12f、导体22以及反相器23共同形成电路，所以能够在该电路中的任何位置连接频率检测器，S卩，在输出端24b、输入端24a或者连接至导体22、22a。 It will be appreciated that, since the conductive string 12a-12f, the conductors 22 and 23 together form an inverter circuit, can be anywhere in the circuit connector frequency detector, S Jie, the output terminal 24b, 24a, or connected to an input terminal to the conductors 22,22a.
检测系统进一步包括用于产生电信号的电源(未示出)。  The detection system further includes a power source (not shown) for generating an electrical signal. 当启动检测系统时，电源传输电信号通过导电弦12a_12f。 When starting the detection system, the power transmitting electrical signals through the conductive strings 12a_12f.
 如上文所提到的，音柱14a_14f由导电材料制成，因此将其中一根导电弦12a_12f按下抵靠其中一条音柱14a-14f，促进了将通过相应导电弦、导体22以及反相器23形成的电路闭合。  As mentioned above, the fret 14a_14f made of conductive material, wherein an electrically conductive string will thus press against 12a_12f wherein a fret 14a-14f, promoted by the respective conductive strings, conductor 22 and circuit formed by the inverter 23 is closed. 例如，如果按下导电弦12f抵靠音柱14e，则电路闭合且输出信号从反相器23的输出端24b传输通过多路分解器30、导电弦12f、音柱14e以及导体22而返回至输入端24a。 For example, if the string 12f is pressed against the conductive fret 14e, the circuit is closed and the output signal from the output end 24b of the inverter 23 is transmitted through the demultiplexer 30, the electrically conductive strings 12f, 14e and a conductor fret 22 is returned to input 24a. 如果输出信号的电压对应逻辑0，则通过导电弦12f和导体22传输回输入端24a的电压也对应逻辑 If also the voltage corresponding logical output signal corresponding to a logic 0, the voltage 22 transmitted back to the string 12f, and a conductive input terminal 24a via conductors
O。 O. 作为响应，反相器23输出具有对应逻辑I的电压的输出信号。 In response, the inverter 23 outputs an output signal having a voltage corresponding to Logic I.
输出信号通过导电弦12f、音柱14e以及导体22的进一步传输在输入端24a提供对应逻辑I的电压，其接着通过反相器23在输出端反相为对应逻辑I的电压。  I provide an output signal corresponding to the logic voltage at the input terminal 24a electrically conductive strings 12f, 14e fret and further through the transmission conductor 22, which is followed by the inverter output of the inverter 23 to a voltage corresponding to the logical I. 只要导电弦12f被按下抵靠音柱He，输出端24b和输入端24a之间的输出信号的传输便继续。 As long as the conductive strings 12f is pressed against the fret He, the output end of the transmission between the output signal and the input terminal 24a 24b will continue. 因此，通过导电弦12f传输的信号在逻辑I和逻辑I之间交替。 Thus, the logic alternates between I and I by logic signal transmission conductive strings 12f.
[ΟΟδΟ]如图3的曲线图所不，输出信号能够表不为在第一相52a和第二相52b之间交替的方波，大体上命名为50，在第一相52a中，其电压对应逻辑0，在第二相52b中，其电压对应逻辑I。 [ΟΟδΟ] as shown in the graph of FIG. 3 does not, the output signal can not table 52a between the first phase and the second phase alternating Fang Bo 52b, generally designated as 50, 52a in a first phase, which is the voltage corresponding to logic 0, in the second phase 52b, which is a voltage corresponding to logic I.
在第一相52a和第二相52b之间的交替以一频率发生，该频率取决于反相器23的反相和反相器23的下一次反相之间的时间间隔。  In an alternate frequency occurs between the first phase and the second phase 52a and 52b, the frequency depends on a time interval between inverting at inverter 23 and the inverter 23 is inverted. 由于反相依次发生，一旦电流完成输出端24b和输入端24a之间的完整周期时，通过输入信号50从输出端24b传输回反相器23的输入端24a所需的时间来确定每一反相之间的时间间隔。 Time since the inverse sequence occurs, once the full cycle is completed between the current output terminal 24b and input terminal 24a, back to the inverter 23 via an input signal 50 transmitted from the output terminal 24b of the input terminal 24a to determine whether each desired trans the time interval between phases.
因此，波50的频率，即相52a和52b在给定的时间单元范围内变化的次数总数，根据输出端24a和导电弦被按下抵靠的音柱之间的距离而变化。  Thus, the frequency of wave 50, i.e., the total number of times the phase change 52a and 52b within the range of a given unit of time varies depending on the output end 24a is pressed and the conductive chordal distance between the abutment fret. 也就是说，如果将导电弦12f按下抵靠音柱He，则输出信号传输通过的距离短于当将导电弦12f按下抵靠音柱14f时的传输距离。 That is, if the string 12f pressed against the conductive fret He, the output from the signal transmission is shorter than a string 12f conductive when pressed against the transmission distance fret 14f. 因此，将导电弦12f按下抵靠音柱14e时所形成的信号频率高于将导电弦12f按下抵靠音柱Hf时所形成的信号频率。 Thus, the conductive string 12f pressed against the signal frequency is higher than the fret 14e formed conductive strings 12f pressed against the signal frequency fret Hf formed.
 可以理解的是，由于输出信号传输通过导电弦12f且通过导体22返回，所以在输出端24b返回至输入端24a之间的信号的传输距离约为反相器23和该弦被按下抵靠的音柱之间的距离的两倍。  It will be appreciated that, since the output signal transmitted through the electrically conductive via the conductor string 22 is returned and 12f, the flow returns to the input at the output of inverter 24b transmission distance is about 23 and the sinusoidal signal 24a is pressed between the twice the distance between the frets on the next arrived.
 CPU模块35包含频率检测器，其测量由交替信号所产生的波的频率，且能进一步检测由于信号传输距离的变化而导致的频率变化，当弦12a-12f被按下抵靠的音柱14a-14f改变时，信号传输距离发生变化。  CPU module 35 comprises a frequency detector, which measures the frequency of the wave generated by the alternating signal, and can further detect a frequency change due to changes in the signal caused by the transmission distance, when the string 12a-12f is pressed against the when changing the frets 14a-14f, the signal transmission distance is changed. 因此，CPU模块35配置为，根据所检测的频率确定导电弦被按在哪条音柱上。 Therefore, the CPU module 35 is configured to determine the string is pressed on a conductive strip which frequency according to the detected fret.
例如，如果信号以光速(C)传输且反相器23和弦被按下抵靠的音柱之间的距离为d，则由交替的输出信号所产生的方波频率能够表示为:F=IAt^to),其中为^为反相器23的内部时延，且其中to = c/(2d)。  For example, if the signal is transmitted at the speed of light (C) and the inverter 23 between the chord distance is pressed against the fret is d, the Fang Bo frequency output by the alternating signal generated can be expressed as: F = IAt ^ to), wherein ^ is the internal delay of an inverter 23, and where to = c / (2d). 因此，由于每条音柱限定了与反相器23的距离(d)，所以能够检测到弦12a-12f抵靠其中一条音柱14a-14f的按压。 Accordingly, since each defines a fret and the inverter 23 is the distance (D), it is possible to detect the string 12a-12f against which the press of a fret 14a-14f.
可以理解的是，对于任何一根弦12a_12f，能够对导电弦被按下抵靠的音柱执行检测。  It will be appreciated that any one chord 12a_12f, can be pressed against the conductive fret on the chord detection is performed. 然而，由于以与导体不同的距离来设置每一根导电弦12a-12f，该变化的距离可影响从中传输通过的信号频率。 However, since the conductor is set at different distances from each of the conductive strings 12a-12f, the variation in distance may affect the frequency of the signal transmitted through therethrough. 因此，如先前所提到的，指板10能够包括沿着指板10的外纵向边缘设置且在输入端24a处接合在一起的两个导体22和22a。 Thus, as mentioned previously, it can include a finger plate 10 disposed along the outer longitudinal edge of plate means 10 and 22 are joined together and the two conductors 22a at the input terminal 24a. 两个导体22、22a相对每一根弦12a-12f来设置，使得对于所有导电弦，两个导体与每一根导电弦12a-12f的平均距离是相等的。 Two conductors 22,22a opposite each string 12a-12f is set such that for all of the conductive string, the average distance between the two conductors and each of the conductive strings 12a-12f are equal. 因此，两个导体22、22a提供了信号平均，由此促进了频率变化的正确检测，该频率变化是由反相器23和弦被按下抵靠的音柱之间的变化距离所引起的。 Accordingly, two signal conductors 22,22a provides the average, thereby facilitating correct detection of the frequency change, the frequency variation by the inverter 23 changes the distance between the chord is pressed against the fret caused.
根据不同的示例，能够使用单个导体22，然而，CPU能够配置为，通过考虑弦和导体22之间的距离，检测正在被按下的弦以及由此计算该频率。  According to a different example, using a single conductor 22, however, can be configured as the CPU, the distance 22 between the detection of the chord being pressed and thus the frequency is calculated by considering the string and conductor. 例如，能够通过压力检测器或者通过从多路分解器30中接收反馈来执行检测正在被按下的弦。 For example, it is possible to perform detection of the chord being pressed by the pressure detector, or by receiving feedback from the demultiplexer 30. 也就是说，仅在当多路分解器30连接至当前正在被按下的导电弦时，才将信号传输回输入端24a。 That is, only when the demultiplexer 30 is connected to the conductive currently being pressed chord, it transmits a signal back to the input terminal 24a. 因此，多路分解器30能够为CPU提供与正在被按下的弦有关的数据，使得能够在考虑弦和导体22之间的距离的情况下，根据信号频率来检测正在被按下抵靠的音柱。 Thus, the demultiplexer 30 can provide the CPU with the data relating to the string being pressed, it makes it possible in consideration of the distance between the chord and the conductor 22 according to the detection signal frequency being pressed against the frets.
可以理解的是，反相器23、多路分解器30、CPU或任何其它电子元件能够设置在弦乐器上的任何位置处。  It will be appreciated that the inverter 23, the demultiplexer 30, CPU or any other electronic components can be provided at any position on the stringed instrument. 例如，这些电子元件能够集成在一模块中，该模块能够例如通过乐器上的专用接口连接至弦乐器。 For example, these electronic elements can be integrated in a module, the module can be connected, for example via a dedicated interface on the stringed instrument to instrument. 通过这种方式，当用户希望接收与正在弹奏的音符以及和弦有关的指示时，能够将模块连接至弦乐器。 When this manner, when a user desires to receive and chord notes that are playing the relevant indication, the module can be connected to the stringed instrument.
图2为根据本发明另一示例的指板60和检测系统70的框图。  FIG. 2 is a block diagram 60 and the detection system 70 according to another example of the finger board of the present invention. 指板60与图1中的指板10基本相同且包括多根导电弦62a-62f以及连接至一个或多个导体68、68a的多条音柱64a-64f。 It refers to a plate 60 and finger plate 10 in Figure 1 and comprises a plurality of substantially identical electrically conductive strings 62a-62f and 64a-64f plurality of frets connected to one or more of the conductors 68,68a. 类似地，检测系统70与图1中的检测系统20基本相同且包括具有输入端74a、输出端74b以及多路分解器80的反相器73，多路分解器80配置为用于选择其中一条数据输出线84a-84f，每一条数据输出线84a-84f连接至导电弦62a至62f中的一根。 Similarly, the detection system 70 and the detection system 20 of FIGURE 1 having a substantially identical and comprises an input terminal 74a, an output terminal 74b and the demultiplexer 73 of the inverter 80, a demultiplexer 80 selects a configuration for the data output lines 84a-84f, each of the data output lines 84a-84f are connected to the conductive 62a of a chord to 62f.
根据本示例，检测系统70进一步包括电容器78，其连接至反相器73的输入端74a。  According to the present example, the detection system 70 further includes a capacitor 78, which is connected to the input of inverter 73 to terminal 74a. 电容器78配置为，使得通过导体68、68a传输的信号对电容器进行充电，电容器继而充回导体，从而在电容器和导体之间形成谐振。 Capacitor 78 is configured such that the capacitor is charged by the signal transmission conductor 68,68a, then charged back to the capacitor conductor to form a resonance between the capacitor and the conductor. 该谐振以电振荡的形式，该电振荡由电容器78、导体68以及正在被按下抵靠其中一条音柱64a-64f的导电弦之间的相互作用所产生。 This form of electrical oscillations of the resonator, the electric oscillation of 78, conductor 68 and a capacitor which is being pressed against an interaction between the conductive fret the strings 64a-64f produced. 由于导体68、68a和导电弦62a-62f的阻抗，电振荡产生衰减，接着信号到达反相器73的输入端74a。 Since the impedance conductor 68,68a and the conductive strings 62a-62f, the electrical oscillation attenuation, then the signal arriving at the input of the inverter 73 end 74a. 当信号进入反相器73时，该信号被反相。 When the signal enters the inverter 73, the signal is inverted. 例如，如果输入端74a的信号为对应逻辑I的电压，则反相器73将该信号反相为其相反逻辑电平，S卩O，正如上文参考图1和3所解释的。 For example, if the input signal terminal 74a corresponding logical I voltage, the inverter 73 for inverting the signal of the opposite logic level, S Jie O, as described above with reference to FIGS. 1 and 3 explained.
当对应逻辑O的电压传输通过导电弦和导体68时，产生类似的振荡。  When a voltage corresponding to a logic O and the transmission conductor 68 through the conductive strings, produce similar oscillations. 该电振荡发生衰减，跟着逻辑O的信号到达反相器73的输入端74a，其中将该信号反相回逻辑I。 The damping power oscillations occur, followed by a logic O signal input of inverter 73 reaches the end 74a, wherein the logic signal is inverted back to I.
因此，如图4的曲线图所示，信号能够表示为在第一相92a和第二相92b之间交替的方波，大体上命名为90，在第一相92a中，其电压对应逻辑0，在第二相92b中，其电压对应逻辑I。  Thus, the graph shown in FIG. 4, the signal can be represented as the phase between the first 92a and second 92b phase alternating Fang Bo, designated generally as 90, and 92a in the first phase, the voltage corresponding to logic 0, in the second phase 92b, which is a voltage corresponding to logic I. 第一和第二相92a和92b均包括一衰减时间，其能够表示为T，该衰减时间使得信号波长增加了2T，这是因为在每一波长中振荡发生两次，S卩，逻辑O相一次和逻辑I相一次。 The first and second phases 92a and 92b comprises a decay time, which can be represented by T, the decay time is increased such that the wavelength of the signal 2T, since oscillation occurs twice in each wavelength, S Jie, with the logic O and a logical phase I again. 这导致信号具有更大的波长，即，具有更低的频率，使得便于检测微小的频率变化。 This results in a signal having a greater wavelength, i.e., having a lower frequency, so as to facilitate detection of a slight change in frequency.
可以理解的是，根据其它示例，检测系统能够包括用于延迟信号由此增加波长的其它电子元件，例如串联的电感器或延迟线。  It will be appreciated that according to other examples, a delay detection system can include other electronic components thus increasing the signal wavelength, for example a delay line or an inductor in series.
本公开主题所属技术人员将轻易理解的是，这不脱离本发明精神的情况下，根据实际情况，可以进行多种变化、变形以及修改。 The  skilled in the art of the present disclosed subject matter will be readily appreciated that, without departing from the spirit of the invention, the actual situation, may make various changes, modifications and changes.
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|CN1325103A *||17 May 2001||5 Dec 2001||卡门音乐公司||Piezoelectric bridge acoustical pick-up for music stringed instrument|
|EP0340734B1 *||2 May 1989||30 Dec 1992||Casio Computer Company Limited||Control apparatus for an electronic stringed instrument|
|US3902395 *||11 Oct 1973||2 Sep 1975||William L Avant||Stringed musical instrument with electronic time division multiplexing circuitry|
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|International Classification||G10H3/00, G10H1/38|
|Cooperative Classification||G10H2220/301, G10H2220/171, G10H1/342|