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公开(公告)号：US20130177099A1
公开(公告)日：2013-07-11
申请号：US13673126
申请日：2012-11-09
申请人： BROADCOM CORPORATION
发明人： Neven Pischl , Ahmad Chini
IPC分类号： H04B15/00
CPC分类号： H04B15/00 , H04L25/0276 , H04L25/0282 , H04L25/0294
摘要： Common-mode termination within communication systems. Termination is implemented with respect to two respective portions of a system: the intentional signaling within a communication system as well as any unintentional signaling which may be coupled into the system. Such unintentional signaling may be incurred in a variety of ways including via interference which may be generated by the system itself or by other devices or components external to the system. In addition, such unintentional signaling made be characterized as common-mode (CM) signaling, in that, it generally affects different respective portions of the system similarly or in the same manner. Various communication systems may include two or more devices implemented therein, that effectuate signaling via one or more communication links there between. Appropriate termination is made with respect to both the intentional and unintentional signaling portion of the system using any of a variety of impedance types (e.g., resistors, capacitors, inductors, etc.).
摘要翻译： 通信系统中的共模终止。 关于系统的两个相应部分实现终止：通信系统内的有意信号以及可以耦合到系统中的任何无意信令。 这种无意的信令可能以各种方式发生，包括可能由系统本身或由系统外部的其他设备或组件产生的干扰。 此外，这种无意的信令被表征为共模（CM）信令，因为它通常以类似的方式或以相同的方式影响系统的不同的各个部分。 各种通信系统可以包括其中实现的两个或更多个设备，其通过其间的一个或多个通信链路来实现信令。 使用各种阻抗类型（例如，电阻器，电容器，电感器等）中的任何一种来对系统的有意和无意的信令部分进行适当的终止。
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公开(公告)号：US10135626B2
公开(公告)日：2018-11-20
申请号：US15098251
申请日：2016-04-13
申请人： Broadcom Corporation
摘要： A circuit for power on data line (PoDL) injection includes a power source, a first and a second coupling component, and an interface. The power source provides one or more DC voltage levels. The first coupling component couples the power source to an interface for coupling to a transmission medium. An Ethernet device is coupled through the second coupling component to the interface. The first coupling component is a balanced component, and the Ethernet device is isolated from the power source via a pair of DC blocking capacitors connected between the first coupling component and the second coupling component.
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3.发明授权Method and system for mitigating transformer saturation in a communication interface 有权用于减轻通信接口中变压器饱和度的方法和系统公开(公告)号：US09100070B2
公开(公告)日：2015-08-04
申请号：US14253531
申请日：2014-04-15
申请人： Broadcom Corporation
发明人： Neven Pischl
CPC分类号： H04B1/0475 , G01R27/06 , H03F3/24 , H04B2001/0408 , H04L25/0266 , H04L25/0288
摘要： A method and system for mitigating transformer saturation in a communication interface is provided. The method may include detecting a change in impedance resulting from transformer saturation of at least one isolation transformer utilized in a network path of a network. The network may conform to an IEEE 802.3af specification where power may be delivered through the network. The method may further comprise generating a pulse at a one end of the network and measuring a reflection at that end to detect the transformer saturation. In response to the impedance change, a transmitter signal may be pre-distorted in order to compensate for the detected transformer saturation, or the power delivered over the network may be disabled.
摘要翻译： 提供了一种减轻通信接口中变压器饱和度的方法和系统。 该方法可以包括检测在网络的网络路径中使用的至少一个隔离变压器的变压器饱和导致的阻抗变化。 网络可以符合IEEE 802.3af规范，其中可以通过网络传送电力。 该方法还可以包括在网络的一端产生脉冲并测量该端的反射以检测变压器饱和度。 响应于阻抗变化，发射机信号可以被预失真，以便补偿检测到的变压器饱和，或者可以禁用在网络上传递的功率。
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公开(公告)号：US08903009B2
公开(公告)日：2014-12-02
申请号：US13673126
申请日：2012-11-09
申请人： Broadcom Corporation
发明人： Neven Pischl , Ahmad Chini
CPC分类号： H04B15/00 , H04L25/0276 , H04L25/0282 , H04L25/0294
摘要： Common-mode termination within communication systems. Termination is implemented with respect to two respective portions of a system: the intentional signaling within a communication system as well as any unintentional signaling which may be coupled into the system. Such unintentional signaling may be incurred in a variety of ways including via interference which may be generated by the system itself or by other devices or components external to the system. In addition, such unintentional signaling made be characterized as common-mode (CM) signaling, in that, it generally affects different respective portions of the system similarly or in the same manner. Various communication systems may include two or more devices implemented therein, that effectuate signaling via one or more communication links there between. Appropriate termination is made with respect to both the intentional and unintentional signaling portion of the system using any of a variety of impedance types (e.g., resistors, capacitors, inductors, etc.).
摘要翻译： 通信系统中的共模终止。 关于系统的两个相应部分实现终止：通信系统内的有意信号以及可以耦合到系统中的任何无意信令。 这种无意的信令可能以各种方式发生，包括可能由系统本身或由系统外部的其他设备或组件产生的干扰。 此外，这种无意的信令被表征为共模（CM）信令，因为它通常以类似的方式或以相同的方式影响系统的不同的各个部分。 各种通信系统可以包括其中实现的两个或更多个设备，其通过其间的一个或多个通信链路来实现信令。 使用各种阻抗类型（例如，电阻器，电容器，电感器等）中的任何一种，对系统的有意和无意的信令部分进行适当的终止。
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5.发明申请Method And System For Mitigating Transformer Saturation In A Communication Interface 有权通信接口中减轻变压器饱和度的方法和系统公开(公告)号：US20140226753A1
公开(公告)日：2014-08-14
申请号：US14253531
申请日：2014-04-15
申请人： Broadcom Corporation
发明人： Neven Pischl
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , G01R27/06 , H03F3/24 , H04B2001/0408 , H04L25/0266 , H04L25/0288
摘要： A method and system for mitigating transformer saturation in a communication interface is provided. The method may include detecting a change in impedance resulting from transformer saturation of at least one isolation transformer utilized in a network path of a network. The network may conform to an IEEE 802.3af specification where power may be delivered through the network. The method may further comprise generating a pulse at a one end of the network and measuring a reflection at that end to detect the transformer saturation. In response to the impedance change, a transmitter signal may be pre-distorted in order to compensate for the detected transformer saturation, or the power delivered over the network may be disabled.
摘要翻译： 提供了一种减轻通信接口中变压器饱和度的方法和系统。 该方法可以包括检测在网络的网络路径中使用的至少一个隔离变压器的变压器饱和导致的阻抗变化。 网络可以符合IEEE 802.3af规范，其中可以通过网络传送电力。 该方法还可以包括在网络的一端产生脉冲并测量该端的反射以检测变压器饱和度。 响应于阻抗变化，发射机信号可以被预失真，以便补偿检测到的变压器饱和，或者可以禁用在网络上传递的功率。
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