公开(公告)号：US10523448B2

公开(公告)日：2019-12-31

申请号：US15588068

申请日：2017-05-05

Applicant: IC Plus Corp.

Inventor： Hann-Yun Tarn ,  Chef Hsiao

IPC: H04L12/10 ,  H04B3/54 ,  H02J4/00

Abstract: A power source equipment for power over Ethernet system comprising a plurality of power source devices, each configured to determine, after having determined the power source device is connected by an external device without a powered device (PD) signature, whether another power source device is connected by a power device with a PD signature. If the determination is positive, the two power source devices are determined having been connected by the same PD and power is supplied to the PD by the two power source devices.

公开(公告)号：US10142116B2

公开(公告)日：2018-11-27

申请号：US14988187

申请日：2016-01-05

Applicant: IC Plus Corp.

Inventor： Philip Huang ,  Chef Hsiao ,  Pai-Yi Chiu

IPC: G06F1/32 ,  H04L12/10 ,  G06F1/26 ,  G06F1/28

Abstract: An inspection device to determine whether a device connected to a Power over Ethernet system is suited for being powered, is configured to apply an inspection signal to the device and to measure a response signal thereto. The inspection signal includes a first, second, third and fourth voltage, wherein the first voltage and the third voltage are substantial the same and the second voltage and the fourth voltages are substantial the same, and an application period for applying the fourth voltage is sum of the application period for the second voltage and an extension period. The inspection device determines that the device is not suitable for being powered if a response signal exceeds predetermined ranges. A method to perform these inspections is also disclosed.

公开(公告)号：US10097361B2

公开(公告)日：2018-10-09

申请号：US14981358

申请日：2015-12-28

Applicant: IC Plus Corp.

Inventor： Chef Hsiao

IPC: H04L12/10

Abstract: A gain circuit for power sourcing equipment of Power over Ethernet is disclosed and provides a guard band for the input offset voltages of its operational amplifier. The guard band may be represented by a voltage value and may be set to be greater than the maximum input offset voltage of the input terminals of the operational amplifier. In some embodiment, the guard band allows the voltage of the negative input terminal of the operational amplifier to be greater than 0 V without sacrificing the gain precision.

公开(公告)号：US08219156B2

公开(公告)日：2012-07-10

申请号：US12247423

申请日：2008-10-08

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04W4/00

CPC classification number: H04W52/0241 ,  H04B17/336 ,  H04W52/48 ,  Y02D70/00

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes a transmitter, a receiver, and a control module. The control module is coupled to the transmitter and the receiver. After the control module lowers the output power of either the transmitter, the receiver, or both of them, the control module checks a signal transmission between the transceiver device and a far-end device is normal or not. When the signal transmission between the transceiver device and the far-end device is abnormal, the control module readjusts the output power of the transmitter, the receiver, or both of them. Thereby, the power consumption of the transceiver device is decreased.

Abstract translation: 提供收发器装置及其省电方法。 收发器装置包括发射器，接收器和控制模块。 控制模块耦合到发射机和接收机。 在控制模块降低发射机，接收机或两者的输出功率之后，控制模块检查收发器设备和远端设备之间的信号传输是否正常。 当收发器设备和远端设备之间的信号传输异常时，控制模块重新调整发射机，接收机或两者的输出功率。 从而，收发器装置的功耗降低。

公开(公告)号：US20100054258A1

公开(公告)日：2010-03-04

申请号：US12259842

申请日：2008-10-28

Applicant: Chia-Chieh Wu

Inventor： Chia-Chieh Wu

IPC: H04L12/56

CPC classification number: H04L49/602 ,  H04L49/3009 ,  H04L49/354

Abstract: A switch, an operation method thereof, and a method for updating a forwarding table thereof are provided. The method for updating the forwarding table includes receiving a packet, and determining whether the packet is one of a Join type packet and a Leave type packet for determining to adopt a first VLAN table or a second VLAN table. In the first VLAN table, a first apparatus and a second apparatus are defined in different VLANs, and in the second VLAN table, the first apparatus and the second apparatus are defined in a same VLAN. When it is determined that the packet is one of the Join type packet and the Leave type packet, the second VLAN table is adopted for updating the forwarding table for simplifying the content of the forwarding table. Further, an efficiency of the switch can be improved by using the updated forwarding table.

Abstract translation: 提供了一种开关，其操作方法和用于更新其转发表的方法。 更新转发表的方法包括接收分组，并确定分组是否为联合类型分组和用于确定采用第一VLAN表或第二VLAN表的离开类型分组之一。 在第一VLAN表中，在不同的VLAN中定义第一装置和第二装置，并且在第二VLAN表中，将第一装置和第二装置定义在同一VLAN中。 当确定分组是Join类型分组和Leave类型分组之一时，为了简化转发表的内容，采用第二个VLAN表更新转发表。 此外，可以通过使用更新的转发表来提高交换机的效率。

公开(公告)号：US20100029346A1

公开(公告)日：2010-02-04

申请号：US12247423

申请日：2008-10-08

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04B1/38

CPC classification number: H04W52/0241 ,  H04B17/336 ,  H04W52/48 ,  Y02D70/00

Abstract: A transceiver device and a power saving method thereof are provided. The transceiver device includes a transmitter, a receiver, and a control module. The control module is coupled to the transmitter and the receiver. After the control module lowers the output power of either the transmitter, the receiver, or both of them, the control module checks a signal transmission between the transceiver device and a far-end device is normal or not. When the signal transmission between the transceiver device and the far-end device is abnormal, the control module readjusts the output power of the transmitter, the receiver, or both of them. Thereby, the power consumption of the transceiver device is decreased.

Abstract translation: 提供收发器装置及其省电方法。 收发器装置包括发射器，接收器和控制模块。 控制模块耦合到发射机和接收机。 在控制模块降低发射机，接收机或两者的输出功率之后，控制模块检查收发器设备和远端设备之间的信号传输是否正常。 当收发器设备和远端设备之间的信号传输异常时，控制模块重新调整发射机，接收机或两者的输出功率。 从而，收发器装置的功耗降低。