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1. 发明授权

US06350943B1 Electric instrument amplifier 有权
标题翻译：电动乐器放大器
公开(公告)号：US06350943B1
公开(公告)日：2002-02-26
申请号：US09750861
申请日：2000-12-28
申请人： Michio Suruga , Yoshihiro Suzuki , Kentaro Matsumoto
发明人： Michio Suruga , Yoshihiro Suzuki , Kentaro Matsumoto
IPC分类号： G10H112
CPC分类号： H03F1/327 , G10H1/12 , G10H3/187 , Y10S84/09 , Y10S84/10
摘要： An electric instrument amplifier emulates an audio characteristics of a traditional vacuum-tube type amplifier. The electric instrument amplifier is formed in a single housing for amplifying an audio signal from an electric instrument. The electric instrument amplifier includes an A/D (analog-to-digital) converter for converting a first analog signal from the electric instrument to a digital signal, a digital signal processing circuit for processing the digital signal to add an intended effect to the digital signal, a D/A (digital-to-analog) converter for converting the digital signal processed by the digital signal processing circuit to a second analog signal, a tube amplifier having at least one vacuum-tube for amplifying the second analog signal, and a virtual power circuit formed with semiconductor devices for amplifying or attenuating an audio signal produced by the tube amplifier.
摘要翻译：电动放大器模拟传统真空管式放大器的音频特性。电子仪器放大器形成在用于放大来自电子仪器的音频信号的单个外壳中。电子仪器放大器包括用于将来自电子仪器的第一模拟信号转换为数字信号的A / D（模拟 - 数字）转换器，用于处理数字信号以将数字信号增加到数字信号的预期效果的数字信号处理电路信号，用于将由数字信号处理电路处理的数字信号转换为第二模拟信号的D / A（数/模）转换器，具有至少一个用于放大第二模拟信号的真空管的管放大器，以及形成有用于放大或衰减由管放大器产生的音频信号的半导体器件的虚拟电源电路。

2. 再颁专利

USRE37422E1 Electronic musical instrument 失效
标题翻译：电子乐器
公开(公告)号：USRE37422E1
公开(公告)日：2001-10-30
申请号：US08724968
申请日：1996-10-03
申请人： Hideo Yamada , Masahiro Shimizu
发明人： Hideo Yamada , Masahiro Shimizu
IPC分类号： G10H112
CPC分类号： F16H57/04 , G10H5/007 , G10H7/004 , G10H2250/441 , G10H2250/461 , G10H2250/535
摘要： An electronic musical instrument, which is configured to simulate one or more instruments, provides a sound source, a display unit and a control portion. Herein, under control of the control portion, the display unit displays the predetermined graphic pattern corresponding to the tone-generation mechanism, i.e., tone-generation algorithm of an instrument to be simulated. The sound source contains a drive portion, a tone-generation portion and a resonance-radiation portion, each of which further contains a digital signal processor (DSP). All of these portions function to create a digitized musical tone signal corresponding to a simulated sound of the instrument by combining operation data outputted from the DSPs. By controlling the display unit, it is possible to arbitrarily vary the contents of the displayed tone-generation algorithm, so that the performer can easily and freely perform a music on this electronic musical instrument.
摘要翻译：被配置为模拟一个或多个仪器的电子乐器提供声源，显示单元和控制部分。这里，在控制部分的控制下，显示单元显示与色调生成机构相对应的预定图形，即要被模拟的乐器的色调生成算法。声源包括驱动部分，色调产生部分和谐振辐射部分，每个部分还包含数字信号处理器（DSP）。所有这些部分用于通过组合从DSP输出的操作数据来创建对应于仪器的模拟声音的数字化乐音信号。通过控制显示单元，可以任意地改变所显示的音调生成算法的内容，使得演奏者可以容易且自由地在该电子乐器上执行音乐。

3. 发明授权

US06175073B1 Tone synthesizing device and method based on physical model tone generator 有权
标题翻译：基于物理模型音调发生器的音调合成装置和方法
公开(公告)号：US06175073B1
公开(公告)日：2001-01-16
申请号：US09356733
申请日：1999-07-19
申请人： Toru Kitayama
发明人： Toru Kitayama
IPC分类号： G10H112
CPC分类号： G10H1/16 , G10H5/007 , G10H2250/445 , G10H2250/521
摘要： Physical model tone generator, which includes a loop section with a signal delay element, generates a driving signal by modifying a loop output signal from the loop in accordance with a performance parameter such as a bowing velocity, and introduces the generated driving signal to the loop. This way, the tone generator generates a tone signal with a characteristic controlled by the performance parameter, in a pitch period corresponding to a time delay of the loop. To generate the driving signal, a nonlinear conversion section performs a nonlinear conversion on an input signal based on the loop output signal and performance parameter. The conversion section switches an input-output characteristic, to be used for converting the input signal, into one of at least first and second input-output characteristics in accordance with intensity of a signal based on the loop output signal or the input signal, so that a desired nonlinear conversion characteristic is achieved. Control section restrains a period, in which the first input-output characteristic shifts to the second input-output characteristic, from becoming shorter than the pitch period of a tone based on the loop output signal. This arrangement can prevent the shift from the first input-output characteristic to the second input-output characteristic from taking place frequently within a single period of the tone pitch and thereby avoid a high-order vibration mode.
摘要翻译：包括具有信号延迟元件的环路部分的物理模型音产生器通过根据诸如弓形速度的性能参数修改来自环路的环路输出信号来产生驱动信号，并将产生的驱动信号引入到环路。这样，音调发生器产生具有由性能参数控制的特性的音调信号，该音调信号对应于环路的时间延迟。为了产生驱动信号，非线性转换部分基于环路输出信号和性能参数对输入信号执行非线性转换。转换部分根据基于环路输出信号或输入信号的信号强度，将用于将输入信号转换的输入 - 输出特性切换成至少第一和第二输入 - 输出特性之一，因此实现了期望的非线性转换特性。控制部根据环路输出信号，抑制第一输入输出特性向第二输入输出特性移动的期间变得短于音调的音调周期。这种布置可以防止在音调的单个周期内频繁地发生从第一输入 - 输出特性到第二输入 - 输出特性的偏移，从而避免高阶振动模式。

4. 发明授权

US06791023B2 Bowed stringed musical instrument for generating electric tones close to acoustic tones 有权
标题翻译：用于产生接近声学音调的电音乐的弓弦乐器
公开(公告)号：US06791023B2
公开(公告)日：2004-09-14
申请号：US10294704
申请日：2002-11-14
申请人： Hiroshi Nakaya
发明人： Hiroshi Nakaya
IPC分类号： G10H112
CPC分类号： G10H3/185 , G10H1/12 , G10H3/186 , G10H2220/471 , G10H2220/525
摘要： An electric violin has a combination of two sorts of vibration detectors for transverse vibration components and vertical vibration components, a low-pass filter connected to the vibration detector for the transverse vibration components and a high-pass filter connected to the vibration detector for the vertical vibration components, piezoelectric transducers connected in parallel to a signal processing system, or vibration detectors connected to filter circuits different in frequency characteristics for producing right-channel and left-channel signals so that the electric violin generate electric tones close to acoustic violin tones.
摘要翻译：电动小提琴组合有两种用于横向振动部件和垂直振动部件的振动检测器，连接到横向振动部件的振动检测器的低通滤波器和连接到垂直振动检测器的高通滤波器振动部件，与信号处理系统并联的压电传感器，或连接到不同频率特性的滤波器电路的振动检测器，用于产生右声道和左声道信号，使得电动小提琴产生接近于小提琴音调的电音。

5. 发明授权

US06284965B1 Physical model musical tone synthesis system employing truncated recursive filters 有权
标题翻译：使用截断递归滤波器的物理模型音乐合成系统
公开(公告)号：US06284965B1
公开(公告)日：2001-09-04
申请号：US09314609
申请日：1999-05-19
申请人： Julius O. Smith, III , Maarten Van Walstijn
发明人： Julius O. Smith, III , Maarten Van Walstijn
IPC分类号： G10H112
CPC分类号： G10H1/125 , G10H5/007 , G10H2250/121 , G10H2250/535 , Y10S84/09
摘要： A tone synthesis system employs digital filtering methods to enable the practical usage of unstable filter elements in a real-time synthesis model. Truncated infinite impulse response (TIIR) filters are used to approximate portions of the reflection impulse response of an acoustic horn such as a trumpet bell. Methods for resetting filter state enable the use of internal unstable filter poles. Similar state resetting methods enable the use of unstable one-pole filters in the scattering junction formed between two conical acoustic bores. High quality tone synthesis can be achieved without the necessity of a complicated filter representing large sections of the bore of a woodwind instrument.
摘要翻译：音调合成系统采用数字滤波方法，实现了实时合成模型中不稳定滤波器元件的实际应用。截断的无限脉冲响应（TIIR）滤波器用于近似声喇叭（如喇叭铃）的反射脉冲响应的部分。复位滤波器状态的方法可以使用内部不稳定的滤波器极。类似的状态复位方法使得能够在两个锥形声孔之间形成的散射结中使用不稳定的单极滤波器。可以实现高质量的音调合成，而不需要代表木管乐器的孔的大部分的复杂的过滤器。

6. 发明授权

US06222110B1 Simulated tone stack for electric guitar 有权
标题翻译：电吉他的模拟音堆
公开(公告)号：US06222110B1
公开(公告)日：2001-04-24
申请号：US09595273
申请日：2000-06-15
申请人： Dale Vernon Curtis , Keith Lance Chapman , Charles Clifford Adams
发明人： Dale Vernon Curtis , Keith Lance Chapman , Charles Clifford Adams
IPC分类号： G10H112
CPC分类号： G10H3/187 , G10H1/125 , G10H2250/621 , Y10S84/09
摘要： A combination of limited data, 3D linear interpolation, and a unique simulation circuit are combined to provide a programmable tone control that can simulate any desired tone stack. In accordance with one aspect of the invention, it has been found that a reduced number of data points plus interpolation provides sufficiently accurate coefficients for simulation. The data points are obtained from measurements of the actual operation of the analog tone stacks to be simulated. A second aspect of the invention is the simulation circuit controlled by the coefficients to accurately reproduce the operation of any given tone stack. The simulation circuit uses two programmable filters and three variable gain amplifiers to simulate a tone stack. The cut-off frequency of each filter and the gain of each amplifier are determined by coefficients extracted by interpolation from stored data.
摘要翻译：组合有限数据，3D线性插值和独特的模拟电路组合在一起，提供可以模拟任何所需音调堆栈的可编程音调控制。根据本发明的一个方面，已经发现减少数量的数据点加内插提供足够精确的模拟系数。从要模拟的模拟音调叠层的实际操作的测量中获得数据点。本发明的第二方面是由系数控制的模拟电路，以精确地再现任何给定音调叠层的操作。仿真电路使用两个可编程滤波器和三个可变增益放大器来模拟音调堆叠。每个滤波器的截止频率和每个放大器的增益由从存储的数据插值提取的系数确定。

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