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1. 发明授权

US11246001B2 Acoustic crosstalk cancellation and virtual speakers techniques 有权
公开(公告)号：US11246001B2
公开(公告)日：2022-02-08
申请号：US16857033
申请日：2020-04-23
申请人： THX Ltd.
发明人： Russell Gray
IPC分类号： H04S7/00
摘要： Embodiments provide methods, apparatuses, and systems for performing crosstalk cancellation and/or generation of virtual speakers. An audio processor may include a crosstalk cancellation circuit and a linearization circuit. The linearization circuit may offset the frequency response of the crosstalk cancellation circuit to provide an overall frequency response that is flat. A virtual speaker circuit may receive an input signal associated with an output channel and pass the input signal to the output channel unmodified. The virtual speaker circuit generates a virtualization signal based on the input signal and passes the virtualization signal to another physical channel. The virtualization signal may be generated further based on an ipsilateral head-related transfer function (HRTF) and a contralateral HRTF that correspond to a virtual speaker location of a virtual speaker generated by the virtual speaker circuit. Other embodiments may be described and/or claimed.

2. 发明授权

US10784827B2 Power management system for battery-powered audio device 有权
公开(公告)号：US10784827B2
公开(公告)日：2020-09-22
申请号：US16053729
申请日：2018-08-02
申请人： THX LTD.
发明人： Andrew John Mason
IPC分类号： H03F3/217 , H03F3/185 , H02J7/02 , H02J7/00 , H02J7/06 , H04R3/00 , H02J7/04 , H02J7/34 , H02M3/158
摘要： Embodiments provide a power management system for a battery-powered audio device. The system includes bi-directional power conversion and control circuitry to implement a corresponding control scheme. The system may be switchable between a charge mode, during which the power conversion and control circuitry charges the battery of the audio device and the AC/DC adapter provides an amplifier supply voltage to one or more amplifiers of the audio device, and a discharge mode, in which the power conversion and control circuitry may provide a regulated amplifier supply voltage to the one or more amplifiers that is regulated based on one or more operating conditions of the system. The system may provide reduced cost and reduced power consumption and reduced size compared with prior systems.

3. 发明授权

US10298142B2 Power conversion techniques 有权
公开(公告)号：US10298142B2
公开(公告)日：2019-05-21
申请号：US14873043
申请日：2015-10-01
申请人： THX Ltd.
发明人： Owen Jones , Andrew Mason , Lawrence R. Fincham
IPC分类号： H02M1/14 , H02M7/06 , H02M3/337
摘要： A power supply that includes a first current generator circuit that is coupled to a first transformer and generates a first waveform and a second current generator circuit that is coupled to a second transformer, and generates a second waveform that is out of phase with the first waveform. The first and second waveforms are rectified and combined into a DC output signal. The power supply includes a first coupling circuit that couples the first current generator circuit to the first transformer and a second coupling circuit that couples the second current generator circuit to the second transformer.

4. 发明授权

US08942405B2 Earphone device 有权
标题翻译：耳机设备
公开(公告)号：US08942405B2
公开(公告)日：2015-01-27
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： H04R25/00 , 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。

5. 发明申请

US20140333653A1 METHOD AND SYSTEM FOR PROVIDING ACCESS TO IMAGE SYSTEM SERVICES 有权
标题翻译：用于提供图像系统服务访问的方法和系统
公开(公告)号：US20140333653A1
公开(公告)日：2014-11-13
申请号：US14446105
申请日：2014-07-29
申请人： THX, Ltd
发明人： Peter Polit , Robert C. Carroll
IPC分类号： G06Q10/00 , G09G3/00
CPC分类号： G06Q10/20 , G06K15/00 , G09G3/006 , G09G2320/0666 , G09G2320/0693 , G09G2370/02 , H04N1/00087 , H04N5/247 , H04N17/00
摘要： A method and system according to the disclosure facilitates subscription based access to services for image systems including an image acquisition device configured to generate image data describing a target object in a target area of the image acquisition device and an image display device configured to generate a human perceptible rendering of the target object based on the image data.
摘要翻译：根据本公开的方法和系统有助于基于订阅的对图像系统的服务的访问，包括被配置为生成描述图像获取装置的目标区域中的目标对象的图像数据的图像获取装置，以及被配置为生成人基于图像数据对目标对象的可察觉的呈现。

6. 发明授权

US08452028B2 Dynamic surround channel volume control 有权
标题翻译：动态环绕声道音量控制
公开(公告)号：US08452028B2
公开(公告)日：2013-05-28
申请号：US11955243
申请日：2007-12-12
申请人： John Dahl , Casey Divine
发明人： John Dahl , Casey Divine
IPC分类号： H03G3/00
CPC分类号： H04S7/00 , H04S2400/13
摘要： A dynamic surround channel volume control applies a variable gain control to the surround channels of a multi-channel system. Thus the levels of the surround channels are related to the main volume control of the system. This maintains a predictable relationship between the surround channels and the main or front channels.
摘要翻译：动态环绕声道音量控制将可变增益控制应用于多声道系统的环绕声道。因此，环绕声道的电平与系统的主音量控制有关。这保持环绕声道和主声道或前声道之间的可预测的关系。

7. 发明申请

US20120194675A1 Method and System for Providing Access to Image System Services 有权
标题翻译：提供图像系统服务访问的方法和系统
公开(公告)号：US20120194675A1
公开(公告)日：2012-08-02
申请号：US13442281
申请日：2012-04-09
申请人： Peter Polit , Robert C. Carroll
发明人： Peter Polit , Robert C. Carroll
IPC分类号： H04N7/18 , H04N17/00
CPC分类号： G06Q10/20 , G06K15/00 , G09G3/006 , G09G2320/0666 , G09G2320/0693 , G09G2370/02 , H04N1/00087 , H04N5/247 , H04N17/00
摘要： A method and system according to the disclosure facilitates subscription based access to services for image systems including an image acquisition device configured to generate image data describing a target object in a target area of the image acquisition device and an image display device configured to generate a human perceptible rendering of the target object based on the image data.
摘要翻译：根据本公开的方法和系统有助于基于订阅的对图像系统的服务的访问，包括被配置为生成描述图像获取装置的目标区域中的目标对象的图像数据的图像获取装置，以及被配置为生成人基于图像数据对目标对象的可察觉的呈现。

8. 发明申请

US20090116677A1 EARPHONE DEVICE 有权
标题翻译：耳机设备
公开(公告)号：US20090116677A1
公开(公告)日：2009-05-07
申请号：US12263145
申请日：2008-10-31
申请人： Owen Jones , Lawrence R. Fincham
发明人： Owen Jones , Lawrence R. Fincham
IPC分类号： H04R25/00
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。

9. 发明申请

US20090115531A1 EFFICIENT POWER AMPLIFIER 有权
标题翻译：高效功率放大器
公开(公告)号：US20090115531A1
公开(公告)日：2009-05-07
申请号：US12253047
申请日：2008-10-16
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。

10. 发明申请

US20080130905A1 SOUND SYSTEM AND METHOD OF SOUND REPRODUCTION 有权
标题翻译：声音系统和声音再生方法
公开(公告)号：US20080130905A1
公开(公告)日：2008-06-05
申请号：US11762725
申请日：2007-06-13
申请人： Lawrence R. Fincham
发明人： Lawrence R. Fincham
IPC分类号： H04R5/00
CPC分类号： H04R5/00 , H04S1/002 , H04S3/002
摘要： A sound reproduction system comprises a left and right speakers located in close proximity, and a sound processor which provides audio signals to the pair of speakers. The sound processor preferably derives a cancellation signal from the difference between the left and right channels. The resulting difference signal is scaled, delayed (if necessary), and spectrally modified before being added to the left channel and, in opposite polarity, to the right channel. The spectral modification to the difference channel preferably takes the form of a low-frequency boost over a specified frequency range, in order to restore the correct timbral balance after the differencing process. Additional phase-compensating all-pass networks may be inserted in the difference channel to correct for any extra phase shift contributed by the spectral modifying circuit. The technique may be used in a surround sound system.
摘要翻译：声音再现系统包括靠近的左和右扬声器，以及向该扬声器提供音频信号的声音处理器。声音处理器优选地根据左声道和右声道之间的差异来导出消除信号。所得到的差分信号被缩放，延迟（如果需要），并且在被添加到左声道之前并且以相反的极性被频谱地修改到右声道。差分信道的频谱修改优选地在特定频率范围内采取低频增强的形式，以便在差分处理之后恢复正确的平衡。可以在差分通道中插入附加的相位补偿全通网络，以校正由频谱修改电路贡献的任何额外的相移。该技术可以在环绕声系统中使用。

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