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21. 发明申请

WO2006099613A2 METHOD AND APPARATUS FOR CURRENT SHARING ETHERNET POWER ACROSS FOUR CONDUCTOR PAIRS 审中-公开
标题翻译：通过四导体配对电流共享以太网功率的方法和装置
公开(公告)号：WO2006099613A2
公开(公告)日：2006-09-21
申请号：PCT/US2006/010023
申请日：2006-03-16
申请人： CISCO TECHNOLOGY, INC. , LUM, Meilissa, Rui Ming , KARAM, Roger
发明人： LUM, Meilissa, Rui Ming , KARAM, Roger
IPC分类号： H04L12/413
CPC分类号： H04L12/40032 , H04L12/10 , H04L12/413
摘要： Methods and apparatus for delivering power down all conductors of an Ethernet connection are disclosed. Embodiments include control circuitry coupled to both conductor of an Ethernet cable. The control circuitry is configured to sense the current flowing through power switches coupled inline with the respective conductors and control the switch in order to maintain the current flow through the power switch below a predetermined level. The circuitry prevents Ethernet ports from being shutting down due to conditions caused by imbalances in the effective resistance of Ethernet conductors and circuit paths.
摘要翻译：公开了用于将以太网连接的所有导线断电的方法和装置。实施例包括耦合到以太网电缆的两个导体的控制电路。控制电路被配置为感测流过与相应导体在线耦合的功率开关的电流并控制开关，以便将电流流过电源开关保持在预定水平以下。该电路防止以太网端口由于以太网导体和电路路径的有效电阻不平衡引起的条件关闭。

22. 发明申请

WO2006052360A1 PHY-BASED CURRENT IMBALANCE COMPENSATION FOR MAGNETICS IN A WIRED DATA TELECOMMUNICATIONS NETWORK 审中-公开
标题翻译：有线数据电信网络中基于PHY的电流不平衡补偿
公开(公告)号：WO2006052360A1
公开(公告)日：2006-05-18
申请号：PCT/US2005/036392
申请日：2005-10-07
申请人： CISCO TECHNOLOGY, INC. , KARAM,Roger, A. , WAKERLY, John, F.
发明人： KARAM,Roger, A. , WAKERLY, John, F.
IPC分类号： H04L12/10
CPC分类号： H04L12/10
摘要： In a circuit delivering common mode inline power over a pair of conductors imbalance in the current carried by the first and second conductors of the pair of conductors is detected and compensated with a bias current applied to counter the imbalance.
摘要翻译：在通过一对导体提供共模电力的电路中，由一对导体的第一和第二导体承载的电流的不平衡被检测并用施加以抵消不平衡的偏置电流来补偿。

23. 发明申请

WO2004073254A1 ENABLING CISCO LEGACY POWER EQUIPMENT TO SUPPORT IEEE 802.3 AF STANDARD POWER TERMINALS 审中-公开
标题翻译：启用思科电力设备来支持IEEE 802.3 AF标准电源终端
公开(公告)号：WO2004073254A1
公开(公告)日：2004-08-26
申请号：PCT/US2004/003189
申请日：2004-02-04
申请人： CISCO TECHNOLOGY, INC. , KARAM, Roger
发明人： KARAM, Roger
IPC分类号： H04L12/10
CPC分类号： H04L12/10
摘要： An apparatus and method for enabling Cisco legacy power to support IEEE 802.3 AF standard power. A network power system capable of delivering data terminal equipment power via a media dependent interface includes power source equipment according to Cisco legacy power and at least one powered device according to IEEE standard power. A power compatibility module is inserted between the power source equipment and the powered device to enable the power source equipment to appear according to IEEE standard power and the powered device to appear according to Cisco legacy power. The module includes switches, a DC/DC converter, an IEEE power source equipment circuit, and an isolator. The module optionally includes a user signaling device for communicating operating conditions of the module to a user. The module may be connected to two ports of the power source equipment to supply adequate power levels to the powered device.
摘要翻译：一种用于支持Cisco传统功率支持IEEE 802.3 AF标准功率的设备和方法。能够通过媒体相关接口提供数据终端设备电力的网络电力系统包括根据思科传统功率的电源设备和根据IEEE标准功率的至少一个供电设备。在电源设备和供电设备之间插入一个电源兼容性模块，以使电源设备能够根据IEEE标准电源出现，并且受电设备根据思科传统功率出现。该模块包括开关，DC / DC转换器，IEEE电源设备电路和隔离器。该模块可选地包括用于向用户通信模块的操作条件的用户信号装置。模块可以连接到电源设备的两个端口，以向被动设备提供足够的功率电平。

24. 发明申请

WO2007106795A3 METHOD AND APPARATUS FOR CHANGING POWER CLASS FOR A POWERED DEVICE 审中-公开
标题翻译：用于更换电源的电源的方法和装置
公开(公告)号：WO2007106795A3
公开(公告)日：2008-10-02
申请号：PCT/US2007063844
申请日：2007-03-13
申请人： CISCO TECH INC , KARAM ROGER , THOMAS ROBERT
发明人： KARAM ROGER , THOMAS ROBERT
IPC分类号： G06F1/00 , G01R21/06 , G06F13/14
CPC分类号： H04L12/10
摘要： A method and apparatus for changing power class for a powered device are provided. During operation, a powered device, such as an IP telephone, receives power from a power source via a PoE device. In the event that the powered device detects connection to a second powered device, such as an IP telephone module, the powered device transmits a classification signal to the power source. Based upon the classification signal, the power source performs a powered device classification procedure to reclassify the powered device, such as according to an IEEE 802.3af standard, and provide an increase amount of power to the powered device. The powered device, in turn, provides a portion of the power to the modular device. The modular powered device, therefore, receives power directly from the first powered device and does not require additional equipment in order to operate.
摘要翻译：提供了一种用于改变供电装置的功率等级的方法和装置。在操作期间，诸如IP电话的受电设备经由PoE设备从电源接收电力。在受电设备检测到诸如IP电话模块的第二供电设备的连接的情况下，被动设备向电源发送分类信号。根据分类信号，电源根据IEEE 802.3af标准执行用电设备分类程序重新分类供电设备，并且向被动设备提供增加的功率量。动力装置又向模块化装置提供一部分动力。因此，模块化有源设备直接从第一供电设备接收电力，并且不需要额外的设备来操作。

25. 发明申请

WO2007065168A3 COAXIAL VIA IN PCB FOR HIGH-SPEED SIGNALING DESIGNS 审中-公开
标题翻译：用于高速信号设计的PCB同轴电缆
公开(公告)号：WO2007065168A3
公开(公告)日：2007-11-29
申请号：PCT/US2006061550
申请日：2006-12-04
申请人： CISCO TECH INC , CHENG WHELING , KARAM ROGER , CAMERLO SERGIO
发明人： CHENG WHELING , KARAM ROGER , CAMERLO SERGIO
IPC分类号： H01R12/04
CPC分类号： H05K1/0222 , H05K1/115 , H05K3/429 , H05K3/4614 , H05K2201/09309 , H05K2201/09809 , H05K2203/061 , Y10T29/49126 , Y10T29/49128 , Y10T29/49162 , Y10T29/49165
摘要： A method of fabricating a printed circuit board having a coaxial via is disclosed. The method includes assembling a plurality of layers configured in a stack so that the plurality of layers has a top signal layer and a bottom signal layer; forming a hollow via through the plurality of layers to connect GND layers in the printed circuit board, forming or inserting into the hollow via a conductor coated with non-conductive material, covering the top layer and bottom layer with dielectric and patterned signal layers, covering the top layer and bottom layer with a masking agent, plating the top layer and bottom layer with a conductive material that connects signal traces within via, and removing the masking agent from the top layer and bottom layer.
摘要翻译：公开了一种制造具有同轴通孔的印刷电路板的方法。该方法包括组装配置在堆叠中的多个层，使得多个层具有顶部信号层和底部信号层; 通过多个层形成中空通孔以连接印刷电路板中的GND层，经由涂覆有非导电材料的导体形成或插入到中空部中，用电介质和图案化的信号层覆盖顶层和底层，覆盖具有掩蔽剂的顶层和底层，用连接通孔内的信号迹线的导电材料电镀顶层和底层，以及从顶层和底层去除掩蔽剂。

26. 发明申请

WO2007106795A2 METHOD AND APPARATUS FOR CHANGING POWER CLASS FOR A POWERED DEVICE 审中-公开
标题翻译：用于更换电源的电源的方法和装置
公开(公告)号：WO2007106795A2
公开(公告)日：2007-09-20
申请号：PCT/US2007/063844
申请日：2007-03-13
申请人： CISCO TECHNOLOGY, INC., ET AL. , KARAM, Roger , THOMAS, Robert
发明人： KARAM, Roger , THOMAS, Robert
IPC分类号： G06F1/26
CPC分类号： H04L12/10
摘要： A method and apparatus for changing power class for a powered device are provided. During operation, a powered device, such as an IP telephone, receives power from a power source via a PoE device. In the event that the powered device detects connection to a second powered device, such as an IP telephone module, the powered device transmits a classification signal to the power source. Based upon the classification signal, the power source performs a powered device classification procedure to reclassify the powered device, such as according to an IEEE 802.3af standard, and provide an increase amount of power to the powered device. The powered device, in turn, provides a portion of the power to the modular device. The modular powered device, therefore, receives power directly from the first powered device and does not require additional equipment in order to operate.
摘要翻译：提供了一种用于改变供电装置的功率等级的方法和装置。在操作期间，诸如IP电话的受电设备经由PoE设备从电源接收电力。在受电设备检测到诸如IP电话模块的第二供电设备的连接的情况下，被动设备向电源发送分类信号。根据分类信号，电源根据IEEE 802.3af标准执行用电设备分类程序重新分类供电设备，并且向被动设备提供增加的功率量。动力装置又向模块化装置提供一部分动力。因此，模块化有源设备直接从第一供电设备接收电力，并且不需要额外的设备来操作。

27. 发明申请

WO2007027673A3 LOW-POWER ETHERNET DEVICE 审中-公开
公开(公告)号：WO2007027673A3
公开(公告)日：2007-03-08
申请号：PCT/US2006/033665
申请日：2006-08-28
申请人： CISCO TECHNOLOGY, INC. , KARAM, Roger
发明人： KARAM, Roger
IPC分类号： H04M1/00
摘要： In accordance with the teachings of this disclosure, an Ethernet device is provided that draws current below a predetermined voltage, and as the voltage across the device exceeds the threshold, the device transforms into a high-impedance state, appearing as a high impedance device. Once in the high-impedance state, the discovery process proceeds normally as the current drawn through the high-impedance device is no more than normally occurs due to leakage or other typical conditions. Thus, the IEEE discovery now proceeds normally in the higher voltage ranges (6V to 9V) where the device of this disclosure is effectively out of the circuit, causing no interference.

28. 发明申请

WO2007027673A2 LOW-POWER ETHERNET DEVICE 审中-公开
标题翻译：低功率以太网设备
公开(公告)号：WO2007027673A2
公开(公告)日：2007-03-08
申请号：PCT/US2006033665
申请日：2006-08-28
申请人： CISCO TECH INC , KARAM ROGER
发明人： KARAM ROGER
IPC分类号： H03M5/00
CPC分类号： H04L12/10
摘要： In accordance with the teachings of this disclosure, an Ethernet device is provided that draws current below a predetermined voltage, and as the voltage across the device exceeds the threshold, the device transforms into a high-impedance state, appearing as a high impedance device. Once in the high-impedance state, the discovery process proceeds normally as the current drawn through the high-impedance device is no more than normally occurs due to leakage or other typical conditions. Thus, the IEEE discovery now proceeds normally in the higher voltage ranges (6V to 9V) where the device of this disclosure is effectively out of the circuit, causing no interference.
摘要翻译：根据本公开的教导，提供了一种以下的以太网设备，其将电流降低到预定电压以下，并且当器件上的电压超过阈值时，器件转换成高阻抗状态，显示为高阻抗器件。一旦处于高阻抗状态，发现过程正常进行，因为通过高阻抗器件引出的电流由于泄漏或其它典型条件而不超过正常情况。因此，IEEE发现现在在本公开的设备实际上超出电路的较高电压范围（6V至9V）中正常进行，不产生干扰。

29. 发明申请

WO2007002091A3 COMMUNICATIONS SYSTEM EMPLOYING SINGLE-PAIR IDENTITY CIRCUIT FOR REMOTELY POWERED DEVICE 审中-公开
公开(公告)号：WO2007002091A3
公开(公告)日：2007-01-04
申请号：PCT/US2006/023984
申请日：2006-06-21
申请人： CISCO TECHNOLOGY, INC. , KARAM, Roger
发明人： KARAM, Roger
IPC分类号： H04M1/00
摘要： A discovery technique employs a single-conductor-pair identity circuit for a remotely powered device A communications system includes a first communications device (e g and IP telephony switch) capable of supplying power at an interface, and a second communications device coupled to the interface via a multiple-conductor-pair cable The second communications device may be a terminal device such as an IP telephone or an intermediate device such as a rewiring device or a mid-span power supply The first communications device includes a single-pair identity signal generator that generates a single-pair identity signal on one conductor pair of the cable, and a single-pair sensor operative to sense a conduction characteristic of the conductor pair indicative of the presence of a single-pair identity circuit The second communications device includes the single-pair identity circuit coupled to the conductor pair and activated by the single-pair identity signal to create the predetermined conduction characteπstic.

30. 发明申请

WO2006125023A3 FAIL-SAFE INLINE POWER IN A WIRED DATA TELECOMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2006125023A3
公开(公告)日：2006-11-23
申请号：PCT/US2006/019127
申请日：2006-05-16
申请人： CISCO SYSTEMS, INC. , KARAM, Roger, A.
发明人： KARAM, Roger, A.
IPC分类号： H02H3/093 , H04L12/10
摘要： A dynamic fuse element is provided in an inline power circuit to provide an electrical current protection level that varies in accordance with allocated current levels and that can respond to current spikes that are not expected. The dynamic fuse element comprises a processor aware of allocated current levels and an inline switch controlled by the processor to turn OFF in the event of a fault. In another aspect ferrite fuses may be provided for relatively low-current applications. In yet another aspect test fuses may be placed on the circuit board to verify that fuses used in manufacture operate at a certain current level.

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