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1. 发明申请

US20090327766A1 Power Over Ethernet Reclassification 审中-公开
标题翻译：以太网供电重分类
公开(公告)号：US20090327766A1
公开(公告)日：2009-12-31
申请号：US12165356
申请日：2008-06-30
申请人： Sajol Ghoshal , Abbas Hage , John Camagna , Philip John Crawley
发明人： Sajol Ghoshal , Abbas Hage , John Camagna , Philip John Crawley
IPC分类号： G06F1/26
CPC分类号： G06F1/266 , H04L12/10
摘要： A power over Ethernet (PoE) system has a reclassification functionality. The illustrative PoE system comprises a powered device (PD) and a power sourcing equipment (PSE) communicatively coupled to the PD. A classification identification component coupled to the PD encodes a classification value. A classification identification component can typically be implemented as a classification resistor, although any other suitable component such as a capacitor, inductor, register, or other structure or method can otherwise be implemented. The PoE system can further comprise a reclassification register in a non-volatile memory that stores a value indicative of a new classification state and a new classification identifier and a power switch that powers the powered device to a classification voltage. A PD controller is coupled to the powered device that reads the value indicative of the new classification state and, if the new classification state is asserted, reads the new classification identifier and sets classification according to the new classification identifier. If the new classification state is not asserted, the PD controller sets classification according to the classification identification component.
摘要翻译：以太网供电（PoE）系统具有重新分类功能。说明性的PoE系统包括通信地耦合到PD的供电设备（PD）和电源设备（PSE）。耦合到PD的分类识别组件对分类值进行编码。通常可以将分类识别组件实现为分类电阻器，但是可以实现诸如电容器，电感器，寄存器或其它结构或方法的任何其它合适的组件。 PoE系统还可以包括在非易失性存储器中存储指示新分类状态的值的重新分类寄存器和新的分类标识符，以及将被供电的设备供电到分类电压的电源开关。 PD控制器耦合到被动设备，其读取指示新分类状态的值，并且如果新分类状态被断言，则读取新的分类标识符并根据新的分类标识符进行分类。如果新的分类状态未被确认，则PD控制器根据分类识别组件设置分类。

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