公开(公告)号：US4653374A

公开(公告)日：1987-03-31

申请号：US702469

申请日：1985-02-19

申请人： Akio Iba

发明人： Akio Iba

IPC分类号： G10H7/02 ,  G10H1/02 ,  G10H1/053 ,  G10H1/043 ,  G10H1/055

CPC分类号： G10H1/02

摘要： A digital pitch bend signal is supplied from an A/D converter to a first coefficient multiplier for every predetermined sampling period. An output of the first coefficient multiplier is added with an output of a second coefficient multiplier at an adder an output of which is delivered, as a digital pitch bend signal in the present cycle, from a buffer for the tone generation. The output of the adder is also fed back to an input of the second coefficient multiplier. Thus, from the buffer, a converted pitch bend signal having a value corrected during the respective sampling periods is produced.

摘要翻译： 每个预定采样周期，数字音调弯曲信号从A / D转换器提供给第一系数乘法器。 第一系数乘法器的输出在其加法器中加上第二系数乘法器的输出，作为当前周期中的数字音调弯曲信号从其缓冲器输出。 加法器的输出也反馈到第二系数乘法器的输入端。 因此，从缓冲器产生具有在各个采样周期期间被校正的值的转换的音调弯曲信号。

公开(公告)号：US5025703A

公开(公告)日：1991-06-25

申请号：US256398

申请日：1988-10-07

申请人： Akio Iba ,  Yoshiyuki Murata ,  Hajime Manabe

发明人： Akio Iba ,  Yoshiyuki Murata ,  Hajime Manabe

IPC分类号： G10H1/46 ,  G10H1/00 ,  G10H1/02 ,  G10H1/043 ,  G10H1/053 ,  G10H1/10 ,  G10H1/14 ,  G10H1/34 ,  G10H3/18

CPC分类号： G10H1/0091 ,  G10H1/10 ,  G10H1/342 ,  G10H3/18 ,  G10H2210/066 ,  G10H2210/191 ,  G10H2210/225 ,  G10H2210/235 ,  G10H2210/251 ,  G10H2210/281 ,  G10H2220/181 ,  G10H2220/301

摘要： An electronic stringed instrument employs a plurality of sensors or monitors for instrument performance. Preferred sensors or monitors include a detector for detecting that a string of the instrument is vibrated, an apparatus for evaluating a string-vibration strength or a string touch, an apparatus for discriminating a fret operation position on a fingerboard or a fundamental frequency of a vibration of the vibrated string, a tremolo arm sensor, and a string-bending sensor. These performance input parameters are assigned to various control functions for musical tones generated by a sound source and/or various control functions for effects added to these musical tones by an effector. The function assignment is preferably programmable. In an operation, a music control apparatus control the sound source and/or effector in response to a performance monitor so that musical tones for the strings can be distinguished from each other or effects for the musical tones can be distinguished from each other. Therefore, a performance with the stringed instrument by a player can be fully expressed.

摘要翻译： 电子弦乐器采用多个传感器或监视器进行仪器性能。 优选的传感器或监视器包括用于检测仪器的琴弦振动的检测器，用于评估琴弦振动强度或琴弦触摸的装置，用于识别指板上的颤动操作位置或振动基频的装置 的振动弦，颤音臂传感器和弦弯曲传感器。 这些性能输入参数被分配给用于由声源产生的乐音的各种控制功能和/或用于通过效果器添加到这些乐音的效果的各种控制功能。 功能分配最好是可编程的。 在操作中，音乐控制装置响应于演奏监视器来控制声源和/或效果器，从而可以将琴弦的音调彼此区分开，或者可以将乐音的效果彼此区分开。 因此，可以充分表达玩家用弦乐器演奏。

公开(公告)号：US5069105A

公开(公告)日：1991-12-03

申请号：US471835

申请日：1990-01-29

申请人： Akio Iba ,  Kenichi Tsutsumi

发明人： Akio Iba ,  Kenichi Tsutsumi

IPC分类号： G10H1/02 ,  G10H7/00

CPC分类号： G10H7/008 ,  G10H1/02

摘要： Disclosed is a musical tone signal generating apparatus for an electronic musical instrument. When waveforms are switched to change a tone color in correspondence with a change in pitch, waveforms are switched not simultaneously with a change in pitch but when waveform data corresponding to a loop end address is read out, and a peak value of the waveform falls within a predetermined range or a zero-crossing point is detected, thereby smoothly switching waveforms. The pitch is also changed at the above-mentioned timing to prevent generation of an unnecessary tone color upon switching. Furthermore, waveforms are switched by cross-fade control to more smoothly switch output waveforms.

公开(公告)号：US4817484A

公开(公告)日：1989-04-04

申请号：US184099

申请日：1988-04-20

申请人： Akio Iba ,  Shigeru Uchiyama

发明人： Akio Iba ,  Shigeru Uchiyama

IPC分类号： G10H1/00 ,  G10H3/12 ,  G10H3/18 ,  G10H1/06 ,  G10H1/40

CPC分类号： G10H3/125 ,  G10H1/0066 ,  G10H3/188 ,  G10H2210/066 ,  Y10S84/12 ,  Y10S84/30

摘要： An electronic stringed instrument includes a mode selecting section for selectively setting a normal play mode and at least one other selection mode. When picking of a string under a pitch designation operation status is performed after the normal play mode is selected by the mode selecting section, generation of a musical tone with the designated pitch can be started. When picking of a string also under the pitch designation operation status is performed after another selection mode is selected by the mode selecting section, a desired musical tone parameter such as a timbre corresponding to the designated pitch or a rhythm pattern can be easily set. The content of the set musical tone parameter can be confirmed by a sound.

摘要翻译： 电子弦乐器包括用于选择性地设置正常播放模式和至少一个其他选择模式的模式选择部分。 当在模式选择部分选择正常播放模式之后执行在音调指定操作状态下选择字符串时，可以开始产生具有指定音调的乐音。 当在模式选择部分选择另一选择模式之后，当在音调指定操作状态下也选择字符串时，可以容易地设置诸如与指定音高或节奏模式相对应的音色等所需的乐音参数。 可以通过声音来确定设定的乐音参数的内容。

公开(公告)号：US5018429A

公开(公告)日：1991-05-28

申请号：US332803

申请日：1989-04-03

申请人： Hideo Yamaya ,  Akio Iba

发明人： Hideo Yamaya ,  Akio Iba

IPC分类号： G10H1/08 ,  G10H1/12 ,  G10H7/00

CPC分类号： G10H7/00 ,  G10H1/08 ,  G10H1/125 ,  G10H2250/591 ,  G10H2250/595 ,  Y10S84/09

摘要： Waveform data is read out from a memory which stores the waveform data at a rate corresponding to a designated pitch. The readout data is supplied to digital filters, and two or more different filtering operations are executed in the digital filters. Two or more waveform data obtained as a filtering result are synthesized at a rate determined in response to a breath input signal output from a breath sensor, and the synthesized data is output as a musical tone waveform signal. The filter performs the filtering operation while a cut-off frequency is changed in response to the breath input signal.

摘要翻译： 从存储波形数据的存储器读出波形数据，该波形数据以与指定音调相对应的速率。 读出数据被提供给数字滤波器，并且在数字滤波器中执行两个或多个不同的滤波操作。 作为滤波结果获得的两个以上的波形数据以响应于从呼吸传感器输出的呼吸输入信号确定的速率合成，并且合成数据被输出为乐音波形信号。 滤波器执行滤波操作，同时根据呼吸输入信号改变截止频率。

公开(公告)号：US4413543A

公开(公告)日：1983-11-08

申请号：US331972

申请日：1981-12-18

申请人： Akio Iba

发明人： Akio Iba

IPC分类号： G10H1/00 ,  G10H1/26 ,  G10H1/36 ,  G10H7/00 ,  G10H1/42

CPC分类号： G10H7/002 ,  G10H1/26 ,  G10H1/36 ,  Y10S84/12

摘要： A series of musical tone codes for musical performances and synchro start codes are stored in a main memory. A series of musical tone codes for one-key play or an automatic play are stored in a submemory. In the course of playing music on the basis of said musical tone codes read out from the main memory, when the synchro start code is read out, an automatic play on the basis of musical tone codes stored in the submemory is performed accompanied by the musical tone codes stored in the submemory under control of a CPU, if necessary.

摘要翻译： 用于音乐表演和同步起始码的一系列乐音代码被存储在主存储器中。 用于单键播放或自动播放的一系列乐音代码被存储在子存储器中。 在基于从主存储器读出的所述乐音代码播放音乐的过程中，当同步开始码被读出时，基于存储在子存储器中的乐音代码进行自动播放，伴随着音乐 如果需要，在CPU的控制下存储在子存储器中的音码。

公开(公告)号：US5166464A

公开(公告)日：1992-11-24

申请号：US777674

申请日：1991-10-15

申请人： Goro Sakata ,  Akio Iba

发明人： Goro Sakata ,  Akio Iba

IPC分类号： G10H1/00

CPC分类号： G10H1/0091 ,  G10H2210/281 ,  G10H2210/305 ,  Y10S84/26

摘要： Either the frequency of phase of an original musical sound signal is modulated, the musical sound signal is weighted, a reverberation effect is added thereto and the thus modified signal is added with the original musical sound signal.

摘要翻译： 原音乐信号的相位频率被调制，音乐声音信号被加权，混响效果被添加到其中并且由此修改的信号与原始音乐声音信号相加。

公开(公告)号：US5159141A

公开(公告)日：1992-10-27

申请号：US686030

申请日：1991-04-16

申请人： Akio Iba

发明人： Akio Iba

IPC分类号： G10H1/20

CPC分类号： G10H1/20

摘要： This invention realizes a musical instrument, automatically transposing the pitches of the sounds reproduced from the musical instruments played by a performer, based on the pitch changes of the reproduced sounds caused by the changes in the reproduction speeds of audio equipment.Thus, this invention enables a performer to play an electronic musical instrument at a desired speed without having to retune it, when performer play musical instrument accompanying music sound reproduced by audio equipment.

摘要翻译： 本发明实现了一种乐器，其基于由音频设备的再现速度的变化引起的再现声音的音调变化，自动地调换由演奏者播放的乐器再现的声音的音高。 因此，本发明能够使表演者以所需的速度播放电子乐器，而不必重新调谐，当演奏者播放伴随着音频设备再现的音乐声音的乐器时。

公开(公告)号：US5121669A

公开(公告)日：1992-06-16

申请号：US556954

申请日：1990-07-20

申请人： Akio Iba ,  Yoshiyuki Murata ,  Hajime Manabe

发明人： Akio Iba ,  Yoshiyuki Murata ,  Hajime Manabe

IPC分类号： G10H1/46 ,  G10H1/00 ,  G10H1/02 ,  G10H1/043 ,  G10H1/053 ,  G10H1/10 ,  G10H1/14 ,  G10H1/34 ,  G10H3/18

CPC分类号： G10H1/0091 ,  G10H1/10 ,  G10H1/342 ,  G10H3/18 ,  G10H2210/066 ,  G10H2210/191 ,  G10H2210/225 ,  G10H2210/235 ,  G10H2210/251 ,  G10H2210/281 ,  G10H2220/181 ,  G10H2220/301

摘要： An electronic stringed instrument employs a plurality of sensors or monitors for instrument performance. Preferred sensors or monitors include a detector for detecting that a string of the instrument is vibrated, an apparatus for evaluating a string-vibration strength or a string touch, an apparatus for discriminating a fret operation position on a fingerboard or a fundamental frequency of a vibration of the vibrated string, a tremolo arm sensor, and a string-bending sensor. These performance input parameters are assigned to various control functions for musical tones generated by a sound source and/or various control functions for effects added to these musical tones by an effector. The function assignment is preferably programmable. In an operation, a music control apparatus controls the sound source and/or effector in response to a performance monitor so that musical tones for the strings can be distinguished from each other or effects for the musical tones can be distinguished from each other. Therefore, a performance with the stringed instrument by a player can be fully expressed.