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1. 发明授权

US5221803A Tone signal generation from fewer circuits 失效
标题翻译：从更少的电路产生音调信号
公开(公告)号：US5221803A
公开(公告)日：1993-06-22
申请号：US761575
申请日：1991-09-18
申请人： Gen Izumisawa , Yasushi Sato , Akiko Komatsu
发明人： Gen Izumisawa , Yasushi Sato , Akiko Komatsu
IPC分类号： G10H1/08 , G10H1/18
CPC分类号： G10H1/08 , G10H1/186 , G10H1/188
摘要： A tone generating apparatus comprising a first tone signal generator including the same number of oscillators as a polyphonic number each for generating a tone signal of that tone component of tone components constituting a musical tone which has a relatively long tone-ON time; a first assigner for assigning tone generation to one of the oscillators of the first tone signal generator; a second tone signal generator including oscillators each for generating a tone signal of a different one of the tone components constituting a musical tone than the tone component having a relatively long tone-ON time, a quantity of the oscillators being less than the polyphonic number; and a second assigner for assigning tone generation to one of the oscillators of the second tone signal generator, whereby when a tone generation is specified, a tone signal output from one of the oscillators of the first tone signal generator assigned by the first assigner and a tone signal output from one of the oscillators of the second tone signal generator assigned by the second assigner are synthesized to produce a tone signal.
摘要翻译：一种乐音产生装置，包括：第一乐音信号发生器，包括与复音号相同数量的振荡器，每个振荡器用于产生构成具有相对长的音调开启时间的乐音的音调分量的音调分量的音调信号; 第一分配器，用于向第一音调信号发生器的振荡器之一分配音调生成; 第二音调信号发生器，包括振荡器，每个振荡器用于产生构成音调的不同音调分量的音调信号，而不是具有相对长的音调导通时间的音调分量，振荡器的数量小于复音数; 以及第二分配器，用于向第二音调信号发生器的振荡器之一分配音调生成，由此当指定音调生成时，从由第一分配器分配的第一音调信号发生器的振荡器之一输出的音调信号和从由第二分配器分配的第二音调信号发生器的振荡器之一输出的音调信号被合成以产生音调信号。

2. 发明授权

US5185491A Method for processing a waveform 失效
标题翻译：处理波形的方法
公开(公告)号：US5185491A
公开(公告)日：1993-02-09
申请号：US713192
申请日：1991-06-10
申请人： Gen Izumisawa , Yasushi Sato
发明人： Gen Izumisawa , Yasushi Sato
IPC分类号： G10H7/00 , G10H7/02
CPC分类号： G10H7/02 , G10H7/008 , G10H2250/631
摘要： A method for processing a waveform includes the steps of dividing an original musical tone into head data, mix data, and loop data. The data is subjected to several processing steps, including cross-fade mixing. All processing steps are carried out before the processed waveform is stored in memory. Therefore, when the stored data is read out to reproduce the original musical tone, no interpolation steps are required to link the head, mix, and loop data together because that data has been smoothly linked together prior to storage in the memory. As each musical tone is read out, the head data is read out first, followed by the mix data, and then the loop data is read out in alternating directions. The smoothly linked head, mix, and loop portions of the musical tone provide a pleasing reproduction of the original musical tone.
摘要翻译：一种用于处理波形的方法包括以下步骤：将原始乐谱划分为头数据，混合数据和循环数据。数据经过几个处理步骤，包括交叉淡入淡出混合。所有处理步骤在处理后的波形存储在存储器中之前执行。因此，当存储的数据被读出以再现原始乐曲时，由于在存储器中存储之前数据已被平滑地链接在一起，所以不需要插值步骤来将头部，混合和循环数据链接在一起。当每个音调被读出时，首先读出头部数据，随后是混合数据，然后在交替的方向上读出循环数据。音调的平滑连接的头部，混合部分和环形部分提供了原始乐曲的令人愉快的再现。

3. 发明申请

US20080245213A1 MUSIC SOUND GENERATOR 失效
标题翻译：音乐发声器
公开(公告)号：US20080245213A1
公开(公告)日：2008-10-09
申请号：US11874166
申请日：2007-10-17
申请人： Gen Izumisawa
发明人： Gen Izumisawa
IPC分类号： G10H7/00
CPC分类号： G10H1/0575 , G10H1/125 , G10H7/02 , G10H2210/271
摘要： A music sound generator imitates released key string vibration sounds (RKSV) and cabinet resonances of an acoustic piano. When a key is pressed, waveform is readout from a normal music sound waveform memory 15. The normal sound waveform is inputted into a filter 21, and inputted into a filter 22 through a band-pass filter 33. Output waveform of a cabinet resonance waveform memory 17 is inputted into a filter 23 when the key is pressed. Outputs of the filters are synthesized by an adder 27 through multipliers 24 through 26. When the key is pressed, a cut-off frequency of the filter 22 is sufficiently low and RKSV is not generated. If the damper is not on when key-releasing, the cut-off frequency is returned to normal and RKSV is generated. A level controller 32 attenuates the RKSV and the cabinet resonance for a longer time than the normal music sound.
摘要翻译：音乐声音发生器模仿声学钢琴的释放的键盘振动声音（RKSV）和机柜谐振。当按下一个键时，从普通音乐波形存储器15读出波形。正常声音波形被输入到滤波器21中，并通过带通滤波器33输入到滤波器22。当按下键时，机柜谐振波形存储器17的输出波形被输入到滤波器23中。滤波器的输出由加法器27通过乘法器24至26合成。当按下键时，滤波器22的截止频率足够低，并且不产生RKSV。如果松开键时阻尼器不亮，则截止频率恢复正常，产生RKSV。电平控制器32比正常音乐声音衰减RKSV和机柜谐振更长的时间。

4. 发明授权

US5541357A Electronic instrument for synthesizing sound based on waveforms of different frequencies 失效
标题翻译：基于不同频率波形合成声音的电子乐器
公开(公告)号：US5541357A
公开(公告)日：1996-07-30
申请号：US252769
申请日：1994-06-02
申请人： Hiroshi Sato , Gen Izumisawa , Jiro Tanaka , Kiyomichi Kushimiya
发明人： Hiroshi Sato , Gen Izumisawa , Jiro Tanaka , Kiyomichi Kushimiya
IPC分类号： G10H1/053 , G10H1/057 , G10H7/00 , G10H7/02 , G01P3/00 , G10H1/02
CPC分类号： G10H1/0575 , G10H7/02
摘要： In the sound source system, the waveform sampled from the sounds of keys pressed down with two or more kinds of intensity are synthesized in a specified rate, thereby forming the waveform of the sounds of keys pressed down with the other kind of intensity. Thus, almost the actual instrumental deep sounds can be reproduced. The sound waveform sampled from weak key presses is passed through a low pass filter, and the filtered waveform composed only of low order harmonic components is transformed to weak press data in the pulse code modulation system for the storage. Similarly, the sound waveform sampled from strong key presses are passed through a high pass filter, thereby removing the low order harmonic components. The filtered waveform composed only of the high order harmonic components are transformed to strong press data in the pulse code modulation system for the storage. The high pass filter can remove the frequency components which pass through the low pass filter. By mixing the weak and strong press data in the rate determined by the key press intensity, the sound waveform signal of optional key press intensity is formed.
摘要翻译：在声源系统中，以规定的速度合成以两种以上的强度按下的按键的声音取样的波形，从而形成用另一种强度按下的键的声音的波形。因此，几乎可以复制实际的工具深层的声音。从弱键按下的声音波形通过低通滤波器，仅由低次谐波分量构成的滤波波形转换为用于存储的脉冲编码调制系统中的弱压数据。类似地，从强键按压采样的声音波形通过高通滤波器，从而去除低次谐波分量。仅由高次谐波分量构成的滤波波形被转换成用于存储的脉冲编码调制系统中的强压数据。高通滤波器可以去除通过低通滤波器的频率分量。通过按照按键强度确定的速率混合弱和强的按压数据，形成可选按键强度的声音波形信号。

5. 发明授权

US07642445B2 Music sound generator 失效
标题翻译：音乐发声器
公开(公告)号：US07642445B2
公开(公告)日：2010-01-05
申请号：US11874166
申请日：2007-10-17
申请人： Gen Izumisawa
发明人： Gen Izumisawa
IPC分类号： G10H1/06
CPC分类号： G10H1/0575 , G10H1/125 , G10H7/02 , G10H2210/271
摘要： A music sound generator imitates released key string vibration sounds (RKSV) and cabinet resonances of an acoustic piano. When a key is pressed, waveform is readout from a normal music sound waveform memory 15. The normal sound waveform is inputted into a filter 21, and inputted into a filter 22 through a band-pass filter 33. Output waveform of a cabinet resonance waveform memory 17 is inputted into a filter 23 when the key is pressed. Outputs of the filters are synthesized by an adder 27 through multipliers 24 through 26. When the key is pressed, a cut-off frequency of the filter 22 is sufficiently low and RKSV is not generated. If the damper is not on when key-releasing, the cut-off frequency is returned to normal and RKSV is generated. A level controller 32 attenuates the RKSV and the cabinet resonance for a longer time than the normal music sound.
摘要翻译：音乐声音发生器模仿声学钢琴的释放的键盘振动声（RKSV）和机柜谐振。当按下键时，从普通音乐波形存储器15读出波形。正常声波形被输入到滤波器21中，并通过带通滤波器33输入到滤波器22.机柜谐振波形的输出波形当按下键时，存储器17被输入到滤波器23中。滤波器的输出由加法器27通过乘法器24至26合成。当按下该键时，滤波器22的截止频率足够低并且不产生RKSV。如果松开键时阻尼器不亮，则截止频率恢复正常，产生RKSV。电平控制器32比正常音乐声音衰减RKSV和机柜谐振更长的时间。

6. 发明授权

US5637821A Storing and interpolating means for a musical sound generating device 失效
标题翻译：用于音乐声产生装置的存储和内插装置
公开(公告)号：US5637821A
公开(公告)日：1997-06-10
申请号：US597353
申请日：1996-02-06
申请人： Gen Izumisawa , Yutaka Washiyama
发明人： Gen Izumisawa , Yutaka Washiyama
IPC分类号： G10H7/02 , G10H7/00 , G10H7/04 , G10H7/08 , G10H1/02
CPC分类号： G10H7/04 , G10H7/08 , G10H2250/621
摘要： A musical sound generating device has a waveform memory to store musical sound waveform data to be read-out repeatedly between a loop-top address (integral address) and a loop-end address (integral address). The same musical sound waveform data is stored at the loop-top address and the loop-end address. An address computing circuit computes a read-out address, including a decimal part, to repeatedly read out the musical sound waveform data stored between the loop-top address and the loop-end address in the waveform memory. An interpolating circuit carries out interpolation if the read-out address generated by the address computing circuit includes a decimal part. Interpolation is carried out by dividing in proportion the musical sound waveform data read out from the waveform memory using an integral part of the read-out address and the musical sound waveform data read out from the waveform memory using a value obtained by adding 1 to the integral part of the read-out address according to the decimal part.
摘要翻译：音乐声音产生装置具有波形存储器，用于在循环顶部地址（积分地址）和循环结束地址（积分地址）之间重复地存储要读出的音乐声音波形数据。相同的音乐声波形数据存储在环回地址和循环结束地址。地址计算电路计算包括小数部分的读出地址，以重复地读出存储在波形存储器中的循环顶部地址和循环结束地址之间的音乐声音波形数据。如果由地址计算电路产生的读出地址包括小数部分，则内插电路执行插值。通过使用从波形存储器读出的整体部分和从波形存储器读出的音乐声音波形数据，将从波形存储器读出的音乐声音波形数据与比例相加，从而将比例加1 根据小数部分，读出地址的组成部分。

7. 发明授权

US5478968A Stereophonic sound generation system using timing delay 失效
标题翻译：立体声发声系统采用定时延时
公开(公告)号：US5478968A
公开(公告)日：1995-12-26
申请号：US813933
申请日：1991-12-27
申请人： Hiroshi Kitagawa , Gen Izumisawa
发明人： Hiroshi Kitagawa , Gen Izumisawa
IPC分类号： G10H1/00 , G10H7/00 , G01P3/00 , G10H1/02
CPC分类号： G10H1/0091 , G10H2210/251 , G10H2210/305 , Y10S84/27
摘要： A moment at which each of a plurality of pieces of sound data is generated in response to one sounding operation is controlled, and the plurality of pieces of sound data are output to different sounding units. Consequently, differences occur among moments at which sounds are radiated by the sounding units, resulting in an occurrence of differences among lengths of time taken by the sounds to reach the ears of a listener, whereby a stereophonic sound can be produced and the listener can localize a sound image. A stereophonic sound system provided with a sound generating unit for generating sound data, a generation control unit for controlling a generation of sound data in the sound generating unit in such a manner that a plurality of pieces of sound data are generated in parallel with one another in response to a sounding operation, a generation moment control unit for controlling a moment at which each piece of the sound data generated in parallel with one another is produced, and an output unit for outputting the plurality of pieces of sound data generated by the sound generating unit under control of the generation control unit, at moments controlled by the generation moment control unit, to different sounding units.
摘要翻译：响应于一次发声操作而产生多个声音数据中的每一个的时刻被控制，并且多个声音数据被输出到不同的探测单元。因此，在发声单元辐射声音的时刻之间出现差异，导致声音到达听者的耳朵所花费的时间长度之间的差异，由此可以产生立体声，听众可以定位一个声像。一种设置有用于产生声音数据的声音产生单元的立体声系统，用于以彼此并行地生成多个声音数据的方式控制声音产生单元中的声音数据的生成的生成控制单元响应于探测操作，产生时刻控制单元，用于控制产生彼此并行产生的每条声音数据的时刻;以及输出单元，用于输出由声音产生的多条声音数据在由发电控制单元控制的瞬间的发电单元处于不同的发声单元的控制下。

8. 发明申请

US20070175318A1 Resonance generator 失效
标题翻译：共振发生器
公开(公告)号：US20070175318A1
公开(公告)日：2007-08-02
申请号：US11655818
申请日：2007-01-18
申请人： Gen Izumisawa , Akihiro Fujita , Katsushi Ishii
发明人： Gen Izumisawa , Akihiro Fujita , Katsushi Ishii
IPC分类号： G10H1/02 , G10H7/00 , G01P3/00
CPC分类号： G10H1/08 , G10H1/0091 , G10H1/02 , G10H1/057 , G10H2210/271 , G10H2250/451
摘要： According to which a damper is operated before or after keying, one of two resonances is generated. A second waveform storage 18 storing original waveform data of a first resonance based on a music sound including an impact sound of keying according to a before-key-pressing pedaling, and a third waveform storage 19 storing original waveform data of a second resonance based on a music sound which does not include an impact sound of keying according to an after-key-pressing pedaling, are provided. A switch 20 is switched according to the state of the pedal at the time of key pressing to supply selected resonance waveform data to a resonance generating unit 16. The resonance signal outputted from the resonance generating unit 16 and a music sound signal of a direct sound of keying are added by an adder 24 and inputted into a sound system.
摘要翻译：根据其，在键控之前或之后操作阻尼器，产生两个共振之一。第二波形存储器18，存储基于包括按键踏板的键控冲击声的音乐声的第一共振的原始波形数据;以及第三波形存储器19，存储基于第二共振的原始波形数据，提供了不包括根据按键踩踏的键控的冲击声的音乐声音。根据按键时的踏板状态来切换开关20，以将选择的共振波形数据提供给谐振发生单元16。从谐振产生单元16输出的谐振信号和键控的直接声音的音乐声音信号由加法器24相加并输入到声音系统中。

9. 发明授权

US06184453B2 Tone generator, electronic instrument, and storage medium 失效
标题翻译：音调发生器，电子仪器和存储介质
公开(公告)号：US06184453B2
公开(公告)日：2001-02-06
申请号：US09499807
申请日：2000-02-08
申请人： Gen Izumisawa
发明人： Gen Izumisawa
IPC分类号： G10H700
CPC分类号： G10H1/125 , G10H7/002
摘要： When a low-pass filter 204 cuts a loud tone component from a waveform signal that soft and loud tone components are synthesized, and outputs a soft tone component signal, and a high-pass filter 205 cuts a soft tone component from the waveform signal that soft and loud tone components are synthesized, and outputs a loud tone component signal, the outputs at this time are switched on the basis of tone information (touch information, pitch information, tone color information, and the like).
摘要翻译：当低通滤波器204从合成软和高音分量的波形信号中切断高音分量并输出软音分量信号时，高通滤波器205从波形信号中切出软音分量，合成软音和高音分量，并输出高音分量信号，此时的输出根据音调信息（触摸信息，音调信息，音色信息等）进行切换。

10. 发明授权

US5455380A Electronic musical instrument altering tone sound effects responsive to number of channels or tone range 失效
标题翻译：电子乐器响应频道数量或音调范围改变音色效果
公开(公告)号：US5455380A
公开(公告)日：1995-10-03
申请号：US165253
申请日：1993-12-10
申请人： Eiji Matsuda , Gen Izumisawa
发明人： Eiji Matsuda , Gen Izumisawa
IPC分类号： G10H1/00 , G10H1/053 , G10H1/46
CPC分类号： G10H1/053 , G10H1/0091 , G10H2210/281 , Y10S84/26
摘要： An electronic musical instrument changes sound effects, such as resonance and reverberation, during a performance. The instrument has a tone-ON channel counter, for counting keys that are simultaneously depressed; an output channel determination unit, for determining an output channel in consonance with a count value held by the tone-ON channel counter; and an output channel selector, for designating the output channel, so as to provide a desired sound effect through the selected output channel.In a modification, the instrument has a parameter value determination unit, for determining a parameter value in consonance with a count value counted by the tone-ON channel counter; a resonant tone production unit, for adding a desired sound effect; and a controller, for employing the parameter value to control the resonant tone production unit.In a further modification, the instrument has an effect addition unit, for adding sound effects in consonance with a parameter value designated by the parameter value determination unit and the resonant tone production unit.
摘要翻译：电子乐器在表演期间改变声音效果，如共振和混响。仪器有一个音调通道计数器，用于计数同时按下的键; 输出通道确定单元，用于根据由音调通道计数器保持的计数值来确定输出通道; 以及用于指定输出通道的输出通道选择器，以便通过所选择的输出通道提供期望的声音效果。在修改中，仪器具有参数值确定单元，用于根据由tone-on通道计数器计数的计数值来确定参数值; 共振音产生单元，用于增加期望的声音效果; 以及控制器，用于采用参数值来控制共振音产生单元。在进一步的修改中，仪器具有效果添加单元，用于根据由参数值确定单元和共鸣音产生单元指定的参数值来添加声音效果。

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