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1. 发明授权

US09413245B2 Power converter with low ripple output 有权
公开(公告)号：US09413245B2
公开(公告)日：2016-08-09
申请号：US13945889
申请日：2013-07-18
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H02M7/08 , H02M3/22 , H02M1/14 , H02M3/07 , H02M7/10
CPC分类号： H02M3/22 , H02M1/14 , H02M3/07 , H02M7/10
摘要： A power supply includes two or more input waveforms being shaped or selected so that after being separately level-shifted and rectified, their additive combination results in a DC output waveform with substantially no ripple. The power supply may comprise a waveform generator, a level conversion stage for step up or down conversion, a rectification stage, and a combiner. The waveform generator may generate complementary waveforms, preferably identical but phase offset from each other, such that after the complementary waveforms are level-converted, rectified and additively combined their sum will be constant, thus requiring no or minimal smoothing for generation of a DC output waveform. The level conversion may be carried out using transformers or switched capacitor circuits. Feedback from the DC output waveform may be used to adjust the characteristics of the input waveforms.

2. 发明授权

US09363586B2 Narrow profile speaker configurations and systems 有权
标题翻译：窄型扬声器配置和系统
公开(公告)号：US09363586B2
公开(公告)日：2016-06-07
申请号：US13798006
申请日：2013-03-12
申请人： Lawrence R. Fincham
发明人： Lawrence R. Fincham
IPC分类号： H04R25/00 , H04R1/02 , H04S1/00 , H04S3/00
CPC分类号： H04R1/02 , H04R1/288 , H04R1/345 , H04R25/00 , H04R2499/13 , H04S1/002 , H04S3/002
摘要： A narrow profile speaker unit comprises at least one speaker outputting sound towards an internal surface and through a duct with an output terminus, such as a slot, having a narrow dimension, effectively changing the cross-section of the speaker's audio output wave. A pair of speakers may face one another, outputting sound towards a common output slot. Multiple pairs of speakers may be used to form an inline speaker unit for increased sound output. A slotted speaker unit may include multiple speakers facing the same direction, towards a groundplane or reflecting surface, and having parallel apertures for allowing sound radiation. The speaker units may be integral with or attached to electronic appliances such as desktop computers or flatscreen devices, or may be used in automobiles or other contexts.
摘要翻译：窄型扬声器单元包括至少一个扬声器，其向内表面输出声音，并且通过具有窄尺寸的输出端（例如狭槽）的导管，有效地改变扬声器的音频输出波的横截面。一对扬声器可能面对另一个，向共同的输出插槽输出声音。可以使用多对扬声器来形成用于增加声音输出的在线扬声器单元。开槽扬声器单元可以包括面向相同方向的多个扬声器，朝向接地面或反射表面，并且具有用于允许声辐射的平行孔。扬声器单元可以与电子设备（例如台式计算机或平板设备）集成或连接到电子设备，或者可以用于汽车或其他上下文中。

3. 发明授权

US09071201B2 Low dissipation amplifier 有权
标题翻译：低耗散放大器
公开(公告)号：US09071201B2
公开(公告)日：2015-06-30
申请号：US13848005
申请日：2013-03-20
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H03F3/68 , H03F3/21 , H03F1/02 , H03F1/32 , H03F1/34 , H03F1/52 , H03F3/187 , H03F3/30 , H03F3/45
CPC分类号： H03F3/211 , H03F1/0205 , H03F1/3217 , H03F1/34 , H03F1/52 , H03F3/187 , H03F3/21 , H03F3/3069 , H03F3/3076 , H03F3/45475 , H03F2200/129 , H03F2200/135 , H03F2200/144 , H03F2200/405 , H03F2200/408 , H03F2200/411 , H03F2200/426 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/504 , H03F2203/30031 , H03F2203/30033 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528
摘要： A low dissipation, low distortion amplifier includes a driver amplifier stage and a main output stage, with a plurality of impedance networks providing, among other things, feedback paths from outputs of the driver and main output stages to the input of the driver stage. The impedance networks also provide coupling paths from the outputs of the driver and main output stages to the load. The impedance networks can all be formed of resistors, capacitors, or network combinations thereof. An additional feedback path can be added from the load to the driver stage to flatten out the frequency response at low frequencies. The driver and main output stages may be operated in Class AB and B modes respectively, and/or in Class G or H modes. An intermediate amplifier driver stage may be added between the driver and main output stages.
摘要翻译：低耗散低失真放大器包括驱动器放大器级和主输出级，多个阻抗网络尤其提供从驱动器和主输出级的输出到驱动器级的输入的反馈路径。阻抗网络还提供从驱动器和主输出级的输出到负载的耦合路径。阻抗网络都可以由电阻器，电容器或其网络组合形成。可以从负载向驱动器级添加额外的反馈路径，以在低频率下平坦化频率响应。驱动器和主输出级可以分别在AB类和B模式中和/或在G或H类模式下操作。可以在驱动器和主输出级之间添加中间放大器驱动器级。

4. 发明授权

US08723605B2 Efficient power amplifier 有权
标题翻译：高效功率放大器
公开(公告)号：US08723605B2
公开(公告)日：2014-05-13
申请号：US13365861
申请日：2012-02-03
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H03F3/04 , H03F1/02
CPC分类号： H03F1/02 , H03F1/0233 , H03F1/0255 , H03F3/20 , H03F3/68
摘要： A dynamic power supply for N amplifiers includes first and second power boost circuits which temporarily boost the positive or negative power supply rail, respectively. A control circuit monitors amplifier output signal levels and provides power boost control signals to the power boost circuits, which temporarily raise the positive supply voltage above the nominal voltage level in tandem with the highest output signal from the N amplifiers and lower the negative supply voltage below the nominal voltage level in tandem with the lowest output signal level from the N amplifiers. The power boost circuits each may be coupled to a reservoir capacitor from which current is drawn to provide the power boost. When inactive, the reservoir capacitors charge up from the respective power supply rails. The dynamic power supply is well suited for audio amplification systems.
摘要翻译： N放大器的动态电源包括分别临时提升正或负电源轨的第一和第二功率升压电路。控制电路监视放大器输出信号电平并向功率升压电路提供功率升压控制信号，这些信号暂时将正电源电压提高到额定电压电平以上，并与N个放大器的最高输出信号并联，并将负电源电压降至低于额定电压电平与N个放大器的最低输出信号电平一起。功率升压电路各自可以耦合到储存电容器，电容器从该电容器被拉出以提供功率提升。当不活动时，储存电容器从相应的电源轨充满电。动态电源非常适合音频放大系统。

5. 发明申请

US20140097033A1 EARPHONE DEVICE 审中-公开
标题翻译：耳机设备
公开(公告)号：US20140097033A1
公开(公告)日：2014-04-10
申请号：US13867956
申请日：2013-04-22
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H04R1/10
CPC分类号： H04R1/1016 , H04R25/652 , H04R25/656
摘要： An earphone device comprises an inner casing enclosing one or more miniature drive units, and a movable cap or outer casing that moves relative to the inner casing. The inner casing has an extension member, such as a hollow post, terminating in an acoustic output port. A compressible foam bulb at least partially surrounds the extension member, and is decompressed and compressed by actuation of an adjustable member. The adjustable member may take the form, for example, of a pivoting lever, a helical cam, or a push-rod mechanism, among other things. A flange may be disposed around the periphery of the movable cap, in order to provide a seal surrounding the ear canal region. The compressible material may be gripped by the hollow extension member, and abut the movable cap or flange. Through actuation of the adjustable member, the compressible material may be decompressed and thus elongated for insertion into the wearer's ear, and may be compressed and thus widened or expanded to form an adequate seal with the wearer's ear canal region.
摘要翻译：耳机装置包括封闭一个或多个微型驱动单元的内壳和相对于内壳移动的活动盖或外壳。内壳具有延伸构件，例如中空柱，终止于声输出端口。可压缩的泡沫泡沫至少部分地围绕延伸构件，并且通过可调节构件的致动被减压和压缩。可调节构件可以采取例如枢转杆，螺旋形凸轮或推杆机构等形式。可以围绕可移动盖的周边设置凸缘，以便提供围绕耳道区域的密封。可压缩材料可以由中空延伸构件夹持，并且抵靠活动盖或凸缘。通过可调节构件的致动，可压缩材料可以被减压并且因此被拉长以便插入佩戴者的耳朵中，并且可以被压缩并因此变宽或膨胀以与佩戴者的耳道区域形成适当的密封。

6. 发明申请

US20130034251A1 LOUDSPEAKER LINE ARRAY CONFIGURATIONS AND RELATED SOUND PROCESSING 审中-公开
标题翻译：扬声器线阵列配置和相关声音处理
公开(公告)号：US20130034251A1
公开(公告)日：2013-02-07
申请号：US13366215
申请日：2012-02-03
申请人： Lawrence R. Fincham
发明人： Lawrence R. Fincham
IPC分类号： H04R1/00
CPC分类号： H04R1/403 , H03G3/004 , H03G3/007 , H04R1/26 , H04R3/12 , H04R29/00 , H04R2420/09 , H04R2499/13 , H04R2499/15
摘要： A sound reproduction system includes one or more arrays of drive units, coupled with sound processing allowing improved steerability, directional control, width control, and/or beam overlay. A speaker column may comprise two arrays facing one another, the drive units being perpendicular to the speaker unit front, with the acoustic output of each line array being compressed, turned and output from an elongate slot. The drive units may be staggered with respect to those in the opposing array. The arrays may be arc-shaped else straight. Selective delays to simulate an arced pattern. Differential delays applied to the drive units in a sub-array allow beam steering. Additional drive units, such as high frequency drivers, may be added along the length of the elongate slot or elsewhere to increase the dynamic frequency range of the speaker system. A collocated sound processor and amplifier output stage may be integrated with the speaker unit.
摘要翻译：声音再现系统包括一个或多个驱动单元阵列，与声音处理相结合，允许改进的可操纵性，方向控制，宽度控制和/或波束覆盖。扬声器列可以包括彼此面对的两个阵列，驱动单元垂直于扬声器单元前部，每个线阵列的声输出被压缩，转动并从细长槽输出。驱动单元可以相对于相对阵列中的驱动单元交错。阵列可以是弧形，否则是直的。模拟延迟模式的选择性延迟。施加到子阵列中的驱动单元的差分延迟允许波束转向。附加的驱动单元，例如高频驱动器，可以沿着细长槽或其他地方的长度被添加以增加扬声器系统的动态频率范围。配置的声音处理器和放大器输出级可以与扬声器单元集成。

7. 发明申请

US20110032039A1 EFFICIENT POWER AMPLIFIER 有权
标题翻译：高效功率放大器
公开(公告)号：US20110032039A1
公开(公告)日：2011-02-10
申请号：US12910565
申请日：2010-10-22
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H03F3/04
CPC分类号： H03F1/02 , H03F1/0233 , H03F1/0255 , H03F3/20 , H03F3/68
摘要： A dynamic power supply for N amplifiers includes first and second power boost circuits which temporarily boost the positive or negative power supply rail, respectively. A control circuit monitors amplifier output signal levels and provides power boost control signals to the power boost circuits, which temporarily raise the positive supply voltage above the nominal voltage level in tandem with the highest output signal from the N amplifiers and lower the negative supply voltage below the nominal voltage level in tandem with the lowest output signal level from the N amplifiers. The power boost circuits each may be coupled to a reservoir capacitor from which current is drawn to provide the power boost. When inactive, the reservoir capacitors charge up from the respective power supply rails. The dynamic power supply is well suited for audio amplification systems.
摘要翻译： N放大器的动态电源包括分别临时提升正或负电源轨的第一和第二功率升压电路。控制电路监视放大器输出信号电平并向功率升压电路提供功率升压控制信号，这些信号暂时将正电源电压提高到额定电压电平以上，并与N个放大器的最高输出信号并联，并将负电源电压降至低于额定电压电平与N个放大器的最低输出信号电平一起。功率升压电路各自可以耦合到储存电容器，电容器从该电容器被拉出以提供功率提升。当不活动时，储存电容器从相应的电源轨充满电。动态电源非常适合音频放大系统。

8. 发明申请

US20100214024A1 LOW DISSIPATION AMPLIFIER 有权
标题翻译：低功耗放大器
公开(公告)号：US20100214024A1
公开(公告)日：2010-08-26
申请号：US12713015
申请日：2010-02-25
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H03F3/06
CPC分类号： H03F3/211 , H03F1/0205 , H03F1/3217 , H03F1/34 , H03F1/52 , H03F3/187 , H03F3/21 , H03F3/3069 , H03F3/3076 , H03F3/45475 , H03F2200/129 , H03F2200/135 , H03F2200/144 , H03F2200/405 , H03F2200/408 , H03F2200/411 , H03F2200/426 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/504 , H03F2203/30031 , H03F2203/30033 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528
摘要： A low dissipation, low distortion amplifier includes a driver amplifier stage and a main output stage, with a plurality of impedance networks providing, among other things, feedback paths from outputs of the driver and main output stages to the input of the driver stage. The impedance networks also provide coupling paths from the outputs of the driver and main output stages to the load. The impedance networks can all be formed of resistors, capacitors, or network combinations thereof. An additional feedback path can be added from the load to the driver stage to flatten out the frequency response at low frequencies. The driver and main output stages may be operated in Class AB and B modes respectively, and/or in Class G or H modes. An intermediate amplifier driver stage may be added between the driver and main output stages.
摘要翻译：低耗散低失真放大器包括驱动器放大器级和主输出级，多个阻抗网络尤其提供从驱动器和主输出级的输出到驱动器级的输入的反馈路径。阻抗网络还提供从驱动器和主输出级的输出到负载的耦合路径。阻抗网络都可以由电阻器，电容器或其网络组合形成。可以从负载向驱动器级添加额外的反馈路径，以在低频率下平坦化频率响应。驱动器和主输出级可以分别在AB类和B模式中和/或在G或H类模式下操作。可以在驱动器和主输出级之间添加中间放大器驱动器级。

9. 发明授权

US07457425B2 Vehicle sound system 有权
标题翻译：车载音响系统
公开(公告)号：US07457425B2
公开(公告)日：2008-11-25
申请号：US10339357
申请日：2003-01-08
申请人： Lawrence R. Fincham
发明人： Lawrence R. Fincham
IPC分类号： H04R5/02 , H04R1/02
CPC分类号： H04R5/02 , H04R2205/022 , H04R2499/13 , H04S1/002 , H04S3/002
摘要： A vehicle sound system encompasses a combination of speaker configuration, speaker placement, and sound processing to improve sound quality. A pair of speakers (or rows of speakers) are placed close together and located in the front of the console or dashboard with their geometric center on or near the vehicle's central axis. A sound processor acts to “spread” the sound image produced by the two closely spaced speakers by employing a cross-cancellation technique in which the cancellation signal is derived from the difference between the left and right channels. The resulting difference signal is scaled, delayed (if necessary), and spectrally modified before being added in opposite polarities to the left and right channels. The pair of speakers may be placed on a common baffle or mounting surface or in a common housing enclosure, with sound being carried through one or more ducts and emanating out of a slot.
摘要翻译：车辆音响系统包括扬声器配置，扬声器放置和声音处理的组合，以改善声音质量。一对扬声器（或一排扬声器）靠近在一起，位于控制台或仪表板的前部，其几何中心位于车辆中心轴上或附近。声音处理器用于通过采用交叉消除技术来“扩展”由两个紧密间隔的扬声器产生的声音图像，其中消除信号是从左右声道之间的差异导出的。所产生的差分信号被缩放，延迟（如果需要），并且在以相反的极性添加到左和右声道之前进行光谱修改。一对扬声器可以放置在公共挡板或安装表面上或公共壳体外壳中，声音通过一个或多个管道传送并从槽中排出。

10. 发明授权

US07433483B2 Narrow profile speaker configurations and systems 有权
标题翻译：窄型扬声器配置和系统
公开(公告)号：US07433483B2
公开(公告)日：2008-10-07
申请号：US10937796
申请日：2004-09-08
申请人： Lawrence R. Fincham
发明人： Lawrence R. Fincham
IPC分类号： H04R1/02
CPC分类号： H04R1/02 , H04R1/288 , H04R1/345 , H04R25/00 , H04R2499/13 , H04S1/002 , H04S3/002
摘要： A narrow profile speaker unit comprises at least one speaker outputting sound towards an internal surface and through a duct with an output terminus, such as a slot, having a narrow dimension, effectively changing the cross-section of the speaker's audio output wave. A pair of speakers may face one another, outputting sound towards a common output slot. Multiple pairs of speakers may be used to form an inline speaker unit for increased sound output. A slotted speaker unit may include multiple speakers facing the same direction, towards a groundplane or reflecting surface, and having parallel apertures for allowing sound radiation. The speaker units may be integral with or attached to electronic appliances such as desktop computers or flatscreen devices, or may be used in automobiles or other contexts.
摘要翻译：窄型扬声器单元包括至少一个扬声器，其向内表面输出声音，并且通过具有窄尺寸的输出端（例如狭槽）的导管，有效地改变扬声器的音频输出波的横截面。一对扬声器可能面对另一个，向共同的输出插槽输出声音。可以使用多对扬声器来形成用于增加声音输出的在线扬声器单元。开槽扬声器单元可以包括面向相同方向的多个扬声器，朝向接地面或反射表面，并且具有用于允许声辐射的平行孔。扬声器单元可以与电子设备（例如台式计算机或平板设备）集成或连接到电子设备，或者可以用于汽车或其他上下文中。

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