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Patent Agency Ranking
公开(公告)号：US11329837B2
公开(公告)日：2022-05-10
申请号：US16391021
申请日：2019-04-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shiyong Fu , Yan Zhuang , Jincan Cao , Fuguang Huang , Xueqi Chen , Rui Hua
Abstract: A network device includes a power system, a processor, a power sourcing equipment PSE chip coupled to a first forward power supply port, and a first powered device PD chip coupled to a first reverse power receiving port. A first powered device is connected to the first forward power supply port and the first reverse power receiving port. When detecting that a power failure occurs on the network device, the processor instructs the first PD chip to draw power from the first powered device; the first PD chip draws the power from the first powered device through the first reverse power receiving port, and supplies the obtained power to the power system. Therefore, when a power failure occurs, the network device can continue to obtain power and work properly when the power failure occurs.
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公开(公告)号：US11265179B2
公开(公告)日：2022-03-01
申请号：US16694184
申请日：2019-11-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Zhuang , Shiyong Fu , Jincan Cao , Fuguang Huang , Xueqi Chen , Rui Hua
IPC: G06F1/32 , H04L12/10 , G06F1/3203 , H04W84/12
Abstract: A power supply management method performed by power sourcing equipment, includes receiving a power-on request from a level-1 powered device, where the power-on request includes a port identifier of a level-2 power supply port that is detected to be valid in the level-1 powered device, determining, based on the power-on request and an outputtable power of the power sourcing equipment, a level-2 power supply port that is allowed to be powered on in the level-1 powered device, and sending a power-on instruction to the level-1 powered device, where the power-on instruction includes a port identifier of the level-2 power supply port that is allowed to be powered on in the level-1 powered device. The power sourcing equipment uses the level-1 powered device and a level-2 powered device connected to the level-1 powered device as a whole, and centrally performs power supply control and power management.
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公开(公告)号：US10951425B2
公开(公告)日：2021-03-16
申请号：US16371918
申请日：2019-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Zhuang , Shiyong Fu , Jincan Cao , Fuguang Huang , Xueqi Chen , Rui Hua
Abstract: A power over Ethernet method includes: performing, by power sourcing equipment, a plurality of detections by using an Ethernet port, connected to an intermediate device, of the power sourcing equipment, where a quantity of detections performed by the power sourcing equipment is equal to a quantity of power supply ports of the intermediate device; and if at least one detection result of the plurality of detections is effective, sending, by the power sourcing equipment, a power supply indication to the intermediate device, and supplying power to the connection port. In this way, the power sourcing equipment can supply power across the intermediate device to a powered device connected to the intermediate device, and a power loss caused by voltage conversion is avoided.
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公开(公告)号：US20200092118A1
公开(公告)日：2020-03-19
申请号：US16694184
申请日：2019-11-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Zhuang , Shiyong Fu , Jincan Cao , Fuguang Huang , Xueqi Chen , Rui Hua
IPC: H04L12/10 , G06F1/3203
Abstract: A power supply management method performed by power sourcing equipment, includes receiving a power-on request from a level-1 powered device, where the power-on request includes a port identifier of a level-2 power supply port that is detected to be valid in the level-1 powered device, determining, based on the power-on request and an outputtable power of the power sourcing equipment, a level-2 power supply port that is allowed to be powered on in the level-1 powered device, and sending a power-on instruction to the level-1 powered device, where the power-on instruction includes a port identifier of the level-2 power supply port that is allowed to be powered on in the level-1 powered device. The power sourcing equipment uses the level-1 powered device and a level-2 powered device connected to the level-1 powered device as a whole, and centrally performs power supply control and power management.
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公开(公告)号：US20190229934A1
公开(公告)日：2019-07-25
申请号：US16371918
申请日：2019-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Zhuang , Shiyong Fu , Jincan Cao , Fuguang Huang , Xueqi Chen , Rui Hua
Abstract: A power over Ethernet method includes: performing, by power sourcing equipment, a plurality of detections by using an Ethernet port, connected to an intermediate device, of the power sourcing equipment, where a quantity of detections performed by the power sourcing equipment is equal to a quantity of power supply ports of the intermediate device; and if at least one detection result of the plurality of detections is effective, sending, by the power sourcing equipment, a power supply indication to the intermediate device, and supplying power to the connection port. In this way, the power sourcing equipment can supply power across the intermediate device to a powered device connected to the intermediate device, and a power loss caused by voltage conversion is avoided.
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