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11.发明申请公开(公告)号：US20170228006A1
公开(公告)日：2017-08-10
申请号：US15077339
申请日：2016-03-22
Applicant: IC Plus Corp.
Inventor： Hann Yun TARN
Abstract: An inspection device installed in the power source equipment of a Power over Ethernet system for inspection of multiple powered devices connected to a plurality of connecting ports provided in the power source equipment. The inspection device applies an inspection signal to the connecting ports, samples a response signal at the connecting ports and determines whether a qualified powered device is connected to the connecting port, based on the response signal. The inspection device comprises a control means to prevent the inspection device from sampling the response signal at one connecting port, during the time when the inspection device is sampling a response signal at another connecting port. A method performing the inspection of the inspection device is also disclosed.
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公开(公告)号：US20170104602A1
公开(公告)日：2017-04-13
申请号：US14981358
申请日：2015-12-28
Applicant: IC Plus Corp.
Inventor： Chef Hsiao
IPC: H04L12/10
CPC classification number: 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.
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13.发明公开公开(公告)号：US20240244674A1
公开(公告)日：2024-07-18
申请号：US18180141
申请日：2023-03-08
Applicant: IC Plus Corp.
Inventor： Chun-Ying Huang
CPC classification number: H04W74/085 , H04W56/00
Abstract: A physical layer collision avoidance (PLCA) device and a method for automatically determining a node identity for the PLCA device are provided. The method includes: generating a random number as identification information of the PLCA device, wherein the PLCA device maintains an identification information table and a device count; receiving a first synchronization packet, wherein the first synchronization packet includes first identification information of a first PLCA device; determining a first comparison result between the identification information of the PLCA device and the first identification information of the first PLCA device; updating the identification information table and the device count based on the first comparison result; sending a synchronization packet corresponding to the PLCA device based on the first comparison result; and determining the node identity of the PLCA device in a PLCA network based on the identification information table.
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14.发明申请公开(公告)号：US20220209972A1
公开(公告)日：2022-06-30
申请号：US17383467
申请日：2021-07-23
Applicant: IC Plus Corp.
Inventor： Chef HSIAO
Abstract: Control device for power over Ethernet system having multiple power source devices controls power distribution to a plurality of communication ports. Master controller provides a power supply to power consumption look-up-table to a plurality of control circuits in various manners via a series bus. When one power source device shuts down, each control circuit can rapidly shut off selected port switches connected thereto.
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公开(公告)号：US10972079B2
公开(公告)日：2021-04-06
申请号：US16719998
申请日：2019-12-19
Applicant: IC Plus Corp.
Inventor： Wen-Wei Chen
IPC: H03L5/00 , H03K3/0233
Abstract: A common mode voltage level shifting and locking circuit is provided. The common mode voltage level shifting and locking circuit includes an operational amplifier, a source follower, a first feedback circuit, and a second feedback circuit. The operational amplifier generates a first common mode voltage. The source follower shifts the first common mode voltage to generate a second common mode voltage. The first feedback circuit generates a first control signal according to the second common mode voltage. The operational amplifier adjusts the first common mode voltage according to the first control signal. The second feedback circuit generates a second control signal according to an external reference voltage provided by a next stage circuit. The source follower adjusts the second common mode voltage according to the second control signal such that the next stage circuit reaches a maximum input common mode range.
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Patent Agency Ranking
公开(公告)号：US20200350897A1
公开(公告)日：2020-11-05
申请号：US16719998
申请日：2019-12-19
Applicant: IC Plus Corp.
Inventor： Wen-Wei Chen
IPC: H03K3/0233
Abstract: A common mode voltage level shifting and locking circuit is provided. The common mode voltage level shifting and locking circuit includes an operational amplifier, a source follower, a first feedback circuit, and a second feedback circuit. The operational amplifier generates a first common mode voltage. The source follower shifts the first common mode voltage to generate a second common mode voltage. The first feedback circuit generates a first control signal according to the second common mode voltage. The operational amplifier adjusts the first common mode voltage according to the first control signal. The second feedback circuit generates a second control signal according to an external reference voltage provided by a next stage circuit. The source follower adjusts the second common mode voltage according to the second control signal such that the next stage circuit reaches a maximum input common mode range.
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公开(公告)号：US09831913B2
公开(公告)日：2017-11-28
申请号：US15077245
申请日：2016-03-22
Applicant: IC Plus Corp.
Inventor： Hann Yun Tarn
Abstract: A power source equipment for Power over Ethernet system continues to inspect power consumption of all connecting ports, in order to adjust power allocation to the communication ports. When the power consumption of a particular connecting port shows a trend of increase, its power allocation is increased; otherwise, decreased. After a total power allocation is decreased, additionally available power may be generated and provided to an additional communication port. A method for adjusting the power allocation is also disclosed.
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公开(公告)号：US20230046723A1
公开(公告)日：2023-02-16
申请号：US17970022
申请日：2022-10-20
Applicant: IC Plus Corp.
Inventor： Chef HSIAO
Abstract: Power over Ethernet system having multiple power source devices comprising a control device that controls power distribution to a plurality of communication ports. In the control device, a master controller provides a power supply to power consumption look-up-table to a plurality of control circuits in various manners via a series bus. When one power source device shuts down, each control circuit can rapidly shut off selected port switches connected thereto.
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19.发明申请公开(公告)号：US20220321365A1
公开(公告)日：2022-10-06
申请号：US17356600
申请日：2021-06-24
Applicant: IC Plus Corp.
Inventor： Chef HSIAO
Abstract: Control device for PoE system having multiple power source devices comprises power supply state code generator in connection with the power source devices to convert a power supply state signal into a serial power supply state code; plural control circuits to generate power consumption control signals corresponding to said power supply state code by reference to a power supply to power consumption look-up-table, to control the ON/OFF of plural port switches; a signal bus connecting the power supply state code generator and the control circuits.
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20.发明申请公开(公告)号：US20220206560A1
公开(公告)日：2022-06-30
申请号：US17368874
申请日：2021-07-07
Applicant: IC Plus Corp.
Inventor： Chuan Ching YU
IPC: G06F1/3287 , H04L12/10 , G06F13/42 , G06F13/40
Abstract: Control device for a power over Ethernet system having multiple power source devices comprises plural control circuits and a signal bus connecting them. Each control device connects plural power source devices and plural port switches, which controls power supply to a port to be connected by a power consuming device. Detection circuit detects at least one power supply state combination. Control signal generator picks up a power control combination signal corresponding to a detected power supply state combination from a power supply to power control look-up-table, upon change in the power supply state and provides the power control signals to corresponding port switches.
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