公开(公告)号：US20160294344A1

公开(公告)日：2016-10-06

申请号：US14970357

申请日：2015-12-15

Applicant: J. CRAIG OXFORD ,  PATRICK TAYLOR ,  D. MICHAEL SHIELDS

Inventor： J. CRAIG OXFORD ,  PATRICK TAYLOR ,  D. MICHAEL SHIELDS

IPC: H03G9/18 ,  H04R3/04

CPC classification number: H04R3/04 ,  G10H1/16 ,  G10H3/187 ,  G10H2210/311 ,  H03G9/005 ,  H03G9/18 ,  H04R5/04

Abstract: Circuit and associated methods for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content through the systematic introduction of amplitude asymmetry. In one embodiment, the method comprises a spectral modification of an analog audio signal in which the high-frequency content is reduced as a function of the signal amplitude and spectral distribution. The audio signal is subjected to a complementary pre-emphasis and de-emphasis of the high frequencies.

Abstract translation: 用于动态调整音频信号的频谱含量的电路和相关方法，其通过系统地引入振幅不对称来增加谐波含量。 在一个实施例中，该方法包括模拟音频信号的频谱修改，其中高频内容作为信号幅度和频谱分布的函数被减小。 音频信号经受高频的互补预加重和去加重。

公开(公告)号：US09401134B2

公开(公告)日：2016-07-26

申请号：US14338373

申请日：2014-07-23

Applicant: Donald L. Baker

Inventor： Donald L. Baker

IPC: G10H3/18 ,  G10H3/22 ,  G10D1/08

CPC classification number: G10H3/22 ,  G10D1/085 ,  G10H3/143 ,  G10H3/146 ,  G10H3/183 ,  G10H3/187 ,  G10H2220/481 ,  G10H2220/505

Abstract: An electric-acoustic stringed instrument has a removable, adjustable and acoustic artwork top with a decorative bridge and tailpiece; a mounting system for electric string vibration pickups that allows five degrees of freedom in placement and orientation of each pickup anyplace between the neck and bridge; a pickup switching system that provides K*(K−1)/2 series-connected and K*(K−1)/2 parallel-connected humbucking circuits for K matched single-coil pickups; and an on-board preamplifier and distortion circuit, running for over 100 hours on two AA cells, that provides control over second-and third-harmonic distortion. The switched pickups, and up to M=12 switched tone capacitors provide up to M*K*(K−1) tonal options, plus a linear combination of linear, near second-harmonic and near-third harmonic signals, preamp settings, and possible additional vibration sensors in or on the acoustic top.

Abstract translation: 电声弦乐器具有可移动，可调节和声学的艺术品顶部，具有装饰桥和尾座; 用于电动串振动拾取器的安装系统，其允许在颈部和桥梁之间​​任何位置的每个拾音器的放置和定向的五个自由度; 提供用于K匹配单线圈拾取器的K *（K-1）/ 2串联和K *（K-1）/ 2并联连接电路的拾取开关系统; 以及板载前置放大器和失真电路，在两个AA电池上运行超过100小时，可以控制二次和三次谐波失真。 开关式拾音器和多达M = 12个开关音调电容器可提供高达M * K *（K-1）色调选项，以及线性，近二次谐波和近三次谐波信号，前置放大器设置和 在声学顶部中或之上可能的附加振动传感器。

公开(公告)号：US20160191008A1

公开(公告)日：2016-06-30

申请号：US14909706

申请日：2014-08-14

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA ,  THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

Inventor： Adam Johan Bergren ,  Richar McCreery

IPC: H03G7/08 ,  H03G11/00 ,  H03F3/45

CPC classification number: H03G7/08 ,  G10H1/0091 ,  G10H3/187 ,  G10H2210/311 ,  H03F1/34 ,  H03F1/342 ,  H03F3/4508 ,  H03F3/45179 ,  H03F3/45475 ,  H03G11/00

Abstract: A clipping circuit for an amplifier, the clipping circuit using a tunneling junction. A molecular or other tunneling electronic-based component within a hybrid analog-tunneling circuit is used to produce soft or hard clipping capability with enhanced control over the output. The circuit may be used as a distortion circuit for an electric guitar signal or other electronic signals.

Abstract translation: 用于放大器的限幅电路，使用隧道结的限幅电路。 使用混合模拟隧道电路中的分子或其他隧道电子元件来产生软或硬限幅能力，并增强对输出的控制。 电路可以用作电吉他信号或其他电子信号的失真电路。

公开(公告)号：US20160111071A1

公开(公告)日：2016-04-21

申请号：US14851503

申请日：2015-09-11

Applicant: Onkyo Corporation

Inventor： Naoto ISHIZU

IPC: G10H1/16

CPC classification number: G10H1/16 ,  G10H3/187 ,  G10H2210/311

Abstract: To provide an effect circuit that can give round-shaped distortion effect to a music signal.An effect circuit 1 includes a input resistor R2 that is connected to a negative input terminal of an operational amplifier U1, a feedback resistor VR1 that is provided between a positive input terminal of the operational amplifier U1 and an output terminal of the operational amplifier U1, zener diodes D1 and D2 in each of which cathodes are connected and that are provided in parallel with the feedback resistor VR1, and diodes D3 and D4 that are connected in parallel so that each cathode and each anode are connected and are provided between cathodes of the zener diodes D1 and D2.

Abstract translation: 提供可以对音乐信号产生圆形失真效果的效果电路。 效果电路1包括连接到运算放大器U1的负输入端的输入电阻R2，设置在运算放大器U1的正输入端和运算放大器U1的输出端之间的反馈电阻VR1， 齐纳二极管D1和D2，其中每个阴极被连接并且与反馈电阻器VR1并联设置，并且并联连接的二极管D3和D4使得每个阴极和每个阳极连接并设置在阴极之间 齐纳二极管D1和D2。

公开(公告)号：US08822802B1

公开(公告)日：2014-09-02

申请号：US13206406

申请日：2011-08-09

Applicant: James Mark McGillivary

Inventor： James Mark McGillivary

IPC: G10H1/08

CPC classification number: G10H3/187

Abstract: A guitar amplifier system is disclosed. Specific implementations for the guitar amplifier system may comprise an audio input for an audio signal, a preamplifier coupled to the audio input, a tone control element coupled to the preamplifier, a power amplifier coupled to the tone control element, and an audio output coupled to the power amplifier. In an implementation, the tone control may be configured to control at least one of sound equalization, compression distortion, chorus or reverb. In an implementation, at least one of the preamplifier and the power amplifier may comprise at least one distortion multiplier circuit. The distortion multiplier circuit may comprise an audio signal multiplier configured to amplify an audio signal and output an amplified audio signal. The distortion multiplier circuit may also comprise a first voltage clamping circuit between a Vhigh preset level and a reference node coupled to the field effect transistor drain, and a second voltage clamping circuit between the Vlow preset level and the reference node. The Vhigh preset level and Vlow preset level may be set at different distances from a center voltage to asymmetrically distort the audio signal through asymmetrically limiting gain of the audio signal above the preset level and when compared with below the preset level. The distortion multiplier circuit may also comprise a blocking element configured to block DC biases of the field effect transistor.

Abstract translation: 吉他放大器系统被公开。 吉他放大器系统的具体实现可以包括音频信号的音频输入，耦合到音频输入的前置放大器，耦合到前置放大器的音调控制元件，耦合到音调控制元件的功率放大器以及耦合到 功率放大器。 在实现中，音调控制可以被配置为控制声音均衡，压缩失真，合唱或混响中的至少一个。 在实现中，前置放大器和功率放大器中的至少一个可以包括至少一个失真乘法器电路。 失真乘法器电路可以包括被配置为放大音频信号并输出​​放大的音频信号的音频信号乘法器。 失真倍增器电路还可以包括在V high预设电平和耦合到场效应晶体管漏极的参考节点之间的第一电压钳位电路，以及Vlow预设电平和参考节点之间的第二电压钳位电路。 可以将Vhigh预设电平和Vlow预设电平设置在与中心电压不同的距离处，以通过将音频信号的增益不对称地限制在高于预设电平并且与低于预设电平相比较来不对称地使音频信号失真。 失真乘法器电路还可以包括被配置为阻挡场效应晶体管的DC偏置的阻塞元件。

公开(公告)号：US08779274B2

公开(公告)日：2014-07-15

申请号：US13331914

申请日：2011-12-20

Applicant: Jeffrey Arnold

Inventor： Jeffrey Arnold

IPC: G10H1/06 ,  G10H1/12 ,  G10H1/46 ,  H03G3/00 ,  H03G5/00 ,  G10H3/18 ,  H03G7/00 ,  H03G5/02 ,  H03F3/68

CPC classification number: G10H3/187 ,  G10H1/12 ,  G10H2210/311 ,  G10H2220/265 ,  H03F3/181 ,  H03F3/68 ,  H03F2200/03 ,  H03G3/10 ,  H03G5/025 ,  H03G7/001

Abstract: An electronic signal processor for processing signals includes a complex first filter, one or more gain stages and a second filter. The first filter is characterized by a frequency response curve that includes multiple corner frequencies, with some corner frequencies being user selectable. The first filter also has at least two user-preset gain levels which may be alternately selected by a switch. Lower frequency signals are processed by the first filter with at least 12 db/octave slope, and preferably with 18 db/octave slope to minimize intermodulation distortion products by subsequent amplification in the gain stages. A second filter provides further filtering and amplitude control. The signal processor is particularly suited for processing audio frequency signals.

Abstract translation: 用于处理信号的电子信号处理器包括复数第一滤波器，一个或多个增益级和第二滤波器。 第一个滤波器的特征在于频率响应曲线，其包括多个拐角频率，一些拐角频率是用户可选择的。 第一个滤波器还具有至少两个可由开关交替选择的用户预设增益电平。 较低频率信号由第一滤波器以至少12db /倍频程斜率处理，并且优选地具有18db /倍频程斜率，以通过在增益级中的后续放大来最小化互调失真产物。 第二个滤波器提供进一步的滤波和幅度控制。 信号处理器特别适用于处理音频信号。

公开(公告)号：US08542848B1

公开(公告)日：2013-09-24

申请号：US12189190

申请日：2008-08-10

Applicant: Thomas Joseph Krutsick

Inventor： Thomas Joseph Krutsick

IPC: G10H1/00 ,  H03G3/00

CPC classification number: G10H3/187

Abstract: The present invention provides embodiments of a musical instrument preamplifier. It is especially suited to acoustic and electric guitars and basses. All components, including the power source, are contained within or on the body of the instrument. The preamplifier dubbed BPTD (for Battery Powered Tube Driver) contains a vacuum tube input stage and may utilize a second stage consisting of either a vacuum tube or semiconductor device, such as a JFET. Circuitry is included to bias the cathode heater and the preamplifier circuit with no dangerous high voltages present. The tube may be mounted on the instrument body to provide for a pleasing display.

Abstract translation: 本发明提供乐器前置放大器的实施例。 它特别适用于声学和电吉他和低音。 所有组件，包括电源，都包含在仪器的主体内或其上。 称为BPTD（用于电池供电管驱动器）的前置放大器包含真空管输入级，并且可以利用由诸如JFET的真空管或半导体器件组成的第二级。 电路包括偏置阴极加热器和前置放大器电路，没有危险的高电压存在。 管可以安装在仪器主体上以提供令人愉快的显示。

公开(公告)号：US20130022210A1

公开(公告)日：2013-01-24

申请号：US13554142

申请日：2012-07-20

Applicant: Mikko Pekka Vainiala

Inventor： Mikko Pekka Vainiala

IPC: H04R29/00

CPC classification number: G10H1/16 ,  G10H3/187 ,  G10H2210/311 ,  G10H2250/111 ,  H04R29/001

Abstract: A method of measuring an impulse response of an amplifier coupled in operation to a loudspeaker arrangement includes: (a) coupling directly to a connection between the amplifier and the loudspeaker arrangement for obtaining access to a drive signal (Samp) applied to the loudspeaker arrangement to generate an acoustic output (S2); (b) disposing a microphone arrangement for receiving the acoustic output (S2) of the loudspeaker arrangement; (c) using a test signal generator to apply a test signal (Ssw) to an input of the amplifier; and (d) receiving at a digital signal processing arrangement (DSP, 210) at least the drive signal (Samp) and the acoustic output (S2) corresponding to the test signal (Ssw) and performing on these signals a signal processing operation for determining an impulse response for at least one of: the amplifier, the loudspeaker arrangement.

Abstract translation: 测量在操作中耦合到扬声器装置的放大器的脉冲响应的方法包括：（a）直接耦合到放大器和扬声器装置之间的连接，以获得对应用于扬声器装置的驱动信号（Samp）的访问 产生声输出（S2）; （b）设置用于接收扬声器装置的声输出（S2）的麦克风装置; （c）使用测试信号发生器将测试信号（Ssw）施加到放大器的输入端; 以及（d）至少在数字信号处理装置（DSP，210）处接收对应于测试信号（Ssw）的驱动信号（Samp）和声输出（S2），并对这些信号执行用于确定的信号处理操作 对于放大器，扬声器布置中的至少一个的脉冲响应。

公开(公告)号：US20120152089A1

公开(公告)日：2012-06-21

申请号：US12928842

申请日：2010-12-21

Applicant: Randall C. Smith

Inventor： Randall C. Smith

IPC: G10H3/10 ,  H03F3/28

CPC classification number: H03F3/28 ,  G10H3/187 ,  H03G1/0011 ,  H03G1/0088

Abstract: An amplifier for electric guitar including a Cut control for attenuating high frequencies whose operation is expanded via a switch to alternately function as a Master Volume control.

Abstract translation: 一种用于电吉他的放大器，包括用于衰减高频的切割控制，其操作通过开关扩展，以交替地用作主音量控制。

公开(公告)号：US08084681B2

公开(公告)日：2011-12-27

申请号：US12791760

申请日：2010-06-01

Applicant: Neal Schon

Inventor： Neal Schon

IPC: G10H1/32 ,  G10H3/00

CPC classification number: G10H3/187 ,  G10H1/348

Abstract: A combination distortion pedal and amplifier includes a foot pedal controls the distortion and the amplification of audio signals. The level of distortion and amplification are determined by the position of the foot pedal with a low level of distortion and amplification when the foot pedal is in a released position and a high level of distortion and amplification when the foot pedal is depressed. Various intermediate distortion and amplification levels are provided when the foot pedal is in positions between fully released and fully depressed.

Abstract translation: 组合失真踏板和放大器包括脚踏板控制音频信号的失真和放大。 当踏板处于释放位置时，失真和放大的脚踏板的位置由失真和放大的低水平确定，并且当踏板被压下时，失真和放大的高水平。 当踏板处于完全释放和完全压下的位置时，提供各种中间失真和放大级别。