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91.发明申请METHOD OF ANALOG MATH PROCESSING FOR CONTROLLED DISTORTION OF AN ELECTRIC AUDIO SIGNAL AND DEVICE 审中-公开用于控制电声信号和装置的失真的模拟数学处理方法公开(公告)号：US20050195983A1
公开(公告)日：2005-09-08
申请号：US10906644
申请日：2005-02-28
申请人： ILITCH CHILIACHKI
发明人： ILITCH CHILIACHKI
CPC分类号： H03G3/3005 , G10H1/16 , G10H3/187 , G10H2210/311
摘要： This invention is relating to an active, all analog electronic device, for performing a controlled distortion processing over an electric audio signal applied to its input. As a result an output electric audio signal, corresponding to the input electric audio signal is produced. The output electric audio signal is distorted, and contains the dynamics, harmonics, phase shifting and time relations between the components of the input signal. The Method of Analog Math Processing for Controlled Distortion of an electric audio signal and Device consists gain, gain controlling, signal attenuating, buffering and summing stages, blending, tone and level variable controls. The summing stages are arranged to receive signal portions from the gain stages, through their corresponding attenuating stages. These signal portions are summed, based on the analog math processing principles and a distorted electric audio signal is produced with a wide range of smooth and controlled overdrive and distortion effect.
摘要翻译： 本发明涉及一种主动全模拟电子设备，用于对施加到其输入端的电音频信号执行受控失真处理。 结果，产生对应于输入电音频信号的输出电音频信号。 输出电音频信号失真，并包含输入信号分量之间的动力学，谐波，相移和时间关系。 用于电子音频信号和设备的受控失真的模拟数学处理方法包括增益，增益控制，信号衰减，缓冲和求和级，混合，色调和电平变量控制。 相加级被布置成通过其相应的衰减级从增益级接收信号部分。 这些信号部分基于模拟数学处理原理相加，并且产生具有宽范围的平滑和受控的过驱动和失真效应的失真电音频信号。
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公开(公告)号：US20050175195A1
公开(公告)日：2005-08-11
申请号：US10776937
申请日：2004-02-10
申请人： Maynard Cheney , Lewis Cronis
发明人： Maynard Cheney , Lewis Cronis
CPC分类号： G01R31/041 , H04R29/001 , H04R2420/05
摘要： There are techniques described to determine connectivity of a speaker. An amplifier is driven in a predefined manner. A change in power delivered to a power input of the amplifier (or an electrical apparatus in which the amplifier is incorporated) as a result of the predefined driving is sensed. A value indicative of a state of connection of one or more speakers to an output of the amplifier is determined, based on the sensed change in power.
摘要翻译： 描述了确定扬声器连接性的技术。 以预定的方式驱动放大器。 感测到由于预定义的驱动而传送到放大器（或其中放入放大器的电气设备）的功率输入的功率变化。 基于感测到的功率变化，确定表示一个或多个扬声器与放大器的输出的连接状态的值。
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公开(公告)号：US20050147263A1
公开(公告)日：2005-07-07
申请号：US11016320
申请日：2004-12-17
申请人： Naoki Shimamura
发明人： Naoki Shimamura
CPC分类号： H04R3/007 , H04R2430/01
摘要： There is provided a low-cost loudspeaker system which can adjust attenuation and provide protection against an excessive input. Between input terminals and a loudspeaker unit is provided a serial circuit including a plurality of resistor elements. A switch is provided which can switch between connected and disconnected states of two points, which includes one or more resistor elements of the serial circuit therebetween, through an over-current protection element.
摘要翻译： 提供了低成本扬声器系统，其可以调节衰减并提供防止过大输入的保护。 在输入端子和扬声器单元之间提供包括多个电阻元件的串联电路。 提供一种开关，其可以通过过电流保护元件在两个点的连接状态和断开状态之间切换，这两个点包括其间的串联电路的一个或多个电阻元件。
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94.发明授权公开(公告)号：US06914987B2
公开(公告)日：2005-07-05
申请号：US10034239
申请日：2001-12-19
CPC分类号： H03G7/06
摘要： Audio signals are reproduced with consistent perception of total harmonic distortion even with varying spectral content of a particular audio signal without separately limiting different frequency bands within the audio signal. A distortion threshold representative of an amount of distortion to be allowed to be introduced by a power amplifier is determined in response to a frequency content of the audio signal. A distortion trigger compares a measured average distortion signal and the distortion threshold and reduces the controllable gain of the amplifier if the average distortion signal exceeds the distortion threshold.
摘要翻译： 即使在特定音频信号的频谱含量变化的情况下，音频信号仍然具有一致的总谐波失真感觉，而不需要分别限制音频信号内的不同频带。 响应于音频信号的频率内容来确定表示功率放大器允许引入的失真量的失真阈值。 如果平均失真信号超过失真阈值，失真触发将测得的平均失真信号和失真阈值进行比较，并降低放大器的可控增益。
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公开(公告)号：US20050113947A1
公开(公告)日：2005-05-26
申请号：US10716660
申请日：2003-11-20
申请人： Raymond LeBlanc , Angelo Arcaria
发明人： Raymond LeBlanc , Angelo Arcaria
摘要： A digitally enabled speaker amplifier system not only offers substantial numbers of analog loudspeaker outputs in response to a command to emit a selected tone or alarm signal but also supports regionalized and unit-by-unit control of the selected signals. The functionality disclosed herein further allows external command signals to configure a master system panel that controls the speaker amplifier system.
摘要翻译： 数字使能的扬声器放大器系统不仅提供大量的模拟扬声器输出，以响应发出所选音调或报警信号的命令，而且还支持所选信号的区域化和单位控制。 本文公开的功能还允许外部命令信号来配置控制扬声器放大器系统的主系统面板。
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公开(公告)号：US06897725B2
公开(公告)日：2005-05-24
申请号：US10106854
申请日：2002-03-27
申请人： Jun Honda
发明人： Jun Honda
CPC分类号： H03G5/165 , H03G3/3026
摘要： A class D amplifier is provided with a frequency characteristic compensation function. An automatic frequency characteristic compensation circuit is disposed at an input unit of a class D amplifier. The frequency characteristic of the class D amplifier is automatically measured while a load is connected, using a test signal having a predetermined frequency and signal level. An inverse characteristic is computed for compensating the frequency characteristic to the design frequency characteristic, and the inverse characteristic is set in the automatic frequency characteristic compensation circuit.
摘要翻译： D类放大器具有频率特性补偿功能。 自动频率特性补偿电路设置在D类放大器的输入单元处。 使用具有预定频率和信号电平的测试信号，在连接负载时自动测量D类放大器的频率特性。 计算用于补偿设计频率特性的频率特性的逆特性，并且在自动频率特性补偿电路中设置逆特性。
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97.发明授权Power control and modulation of switched-mode power amplifiers with one or more stages 有权具有一个或多个阶段的开关式功率放大器的功率控制和调制公开(公告)号：US06844776B2
公开(公告)日：2005-01-18
申请号：US10431976
申请日：2003-05-07
CPC分类号： H03F1/0227 , H03C5/00 , H03F1/0205 , H03F1/0211 , H03F1/0222 , H03F1/0244 , H03F1/025 , H03F3/217 , H03F3/2178 , H03F2200/324 , H03F2200/351 , H03F2200/405 , H03F2200/504 , H03G3/3047
摘要： This invention controls and modulates switched-mode power amplifiers to enable the production of signals that include amplitude modulation (and possibly, but not necessarily, phase modulation), the average power of which may be controlled over a potentially wide range.
摘要翻译： 本发明控制和调制开关模式功率放大器以使得能够产生包括幅度调制（并且可能但不一定是相位调制）的信号，其平均功率可以在可能的宽范围内被控制。
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98.发明授权公开(公告)号：US06842527B2
公开(公告)日：2005-01-11
申请号：US09737688
申请日：2000-12-15
申请人： Rocky Caldwell
发明人： Rocky Caldwell
CPC分类号： H03F3/181 , H03F1/0211 , H03F2200/03 , H03F2200/504
摘要： The power voltage supply for a power amplifier is switched between an operational full power mode and a reduced power mode by the switching of a dual state impedance device connected in series between the power amplifier and the power supply. A control circuit detects the level of a signal to be amplified by that amplifier and switches the impedance states thus reducing the power output capability of the power amplifier and placing the power amplifier into a reduced power mode. In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable. Additionally, the gain of the amplifier can be reduced for high level signals.
摘要翻译： 功率放大器的电源电压通过在功率放大器和电源之间串联连接的双态阻抗器件的切换，在运行全功率模式和降低功率模式之间切换。 控制电路检测该放大器要放大的信号的电平，并切换阻抗状态，从而降低功率放大器的功率输出能力并将功率放大器置于降低功率模式。 在一个实施例中，通过利用低通滤波器的频谱滤波产生信号，其中交叉频率是可调节的。 另外，对于高电平信号，可以减小放大器的增益。
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公开(公告)号：US6140873A
公开(公告)日：2000-10-31
申请号：US362464
申请日：1999-07-28
IPC分类号： A61B5/055 , G01R33/381 , G01R33/385 , H02M7/48 , H02M7/487 , H03F3/217 , H03K17/10 , H03K17/12 , H02M7/5387 , H03F3/38 , H03F21/00
CPC分类号： H02M7/487 , H02M2007/4811
摘要： A power amplifier for delivering large currents as well as high voltages of the order of some hundreds of amperes and 1000 or more volts, notably for MRI. The amplifier is constructed as a multilevel inverter in order to comply with the requirement of high voltages while utilizing transistors capable of withstanding lower voltages only. The amplifier is arranged for soft switching, so that the switching losses at said large currents are limited.
摘要翻译： 一种功率放大器，用于输送大电流以及大约数百安培和1000或更高电压的高电压，特别是用于MRI。 放大器被构造为多电平逆变器，以便符合高电压的要求，同时利用只能承受较低电压的晶体管。 放大器被布置用于软开关，使得在所述大电流下的开关损耗受到限制。
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公开(公告)号：US06072367A
公开(公告)日：2000-06-06
申请号：US208847
申请日：1998-12-10
申请人： Katsuyoshi Mase
发明人： Katsuyoshi Mase
CPC分类号： H03G3/001
摘要： An electronic balance adjusting circuit comprises a register for holding a balance data and capable of changing the balance data held in the register, a first ALU receiving the balance data held in the register for outputting a first digital value corresponding to a first ratio, and a second ALU receiving the balance data held in the register for outputting a second digital value corresponding to a second ratio having such an inverse increase/decrease relation to the first ratio that when the first ratio increases, the second ratio decreases and when the first ratio decreases, the second ratio increases. A first digital-to-analog converter receives the first digital value to output a first analog signal indicative of the first ratio, and a second digital-to-analog converter receives the second digital value to output a second analog signal indicative of the second ratio. A first variable attenuator receives a first input signal and is controlled by the first analog signal to output a first output signal which has been attenuated by the attenuation amount in accordance with the first analog signal, and a second variable attenuator receives a second input signal and is controlled by the second analog signal to output a second output signal which has been attenuated by the attenuation amount in accordance with the second analog signal.
摘要翻译： 一种电子天平调整电路，包括：用于保持平衡数据并能够改变保存在寄存器中的余额数据的寄存器;接收保存在寄存器中的用于输出与第一比率对应的第一数字值的余额数据的第一ALU，以及 第二ALU接收保存在所述寄存器中的所述余额数据，用于输出对应于与所述第一比率具有这样的反增减关系的第二比率的第二数字值，当所述第一比率增加时，所述第二比率减小，以及当所述第一比率减小时 ，第二比例增加。 第一数模转换器接收第一数字值以输出指示第一比率的第一模拟信号，并且第二数模转换器接收第二数字值以输出指示第二比率的第二模拟信号 。 第一可变衰减器接收第一输入信号并由第一模拟信号控制，以输出根据第一模拟信号衰减衰减量的第一输出信号，第二可变衰减器接收第二输入信号， 由第二模拟信号控制，以输出已根据第二模拟信号衰减衰减量的第二输出信号。
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