公开(公告)号：US11733765B2

公开(公告)日：2023-08-22

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

CPC classification number: G06F1/3287 ,  G06F13/4022 ,  G06F13/4282 ,  H04L12/10 ,  G06F2213/0016

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.

公开(公告)号：US11632257B2

公开(公告)日：2023-04-18

申请号：US17970022

申请日：2022-10-20

Applicant: IC Plus Corp.

Inventor： Chef Hsiao

IPC: G06F1/26 ,  H04L12/10 ,  H04L12/40 ,  G06F1/30

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.

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：US20240243946A1

公开(公告)日：2024-07-18

申请号：US18177757

申请日：2023-03-03

Applicant: IC Plus Corp.

Inventor： Chun-Ying Huang

IPC: H04L12/413 ,  H04L12/40

CPC classification number: H04L12/413 ,  H04L12/40143

Abstract: Embodiments of the disclosure provide a physical layer collision avoidance (PLCA) device and a method for performing emergency transmission thereof. The method includes: in response to determining that the PLCA device enters an emergency transmission mode, finding a first PLCA device that is performing a corresponding first packet transmission; in response to determining that a first transmission priority of the first PLCA device is lower than a transmission priority of the PLCA device, suspending the first packet transmission of the first PLCA device; and in response to determining that it is the PLCA device's turn to perform a corresponding packet transmission, sending an emergency packet corresponding to the emergency transmission mode.

公开(公告)号：US20220376935A1

公开(公告)日：2022-11-24

申请号：US17386611

申请日：2021-07-28

Applicant: IC Plus Corp.

Inventor： Chef HSIAO ,  Daniel KUO

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

Abstract: Power-good detection device for a PoE system with multiple power source devices having multiple power source devices comprises an input to connect multiple power source devices, power state detection circuit to measure power state signals received by the input and power-good threshold generation circuit to generate a threshold value in response to an input control signal. The power-good detection device determines a power-good (normal) and a failure state of the power source devices based on the threshold value and provides a power-good state signal.

公开(公告)号：US10447488B2

公开(公告)日：2019-10-15

申请号：US15467229

申请日：2017-03-23

Applicant: IC Plus Corp.

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

IPC: G01R31/04 ,  H04L12/10 ,  G01R31/44

Abstract: The present invention relates to device and method for detecting powered devices connected to a power source equipment in a Power over Ethernet system that provides multiple signal/power channels. A series of inspection signals including one discriminative signal is applied to the respective channels and response signals to the discriminative signal and other detection signals are compared in order to determine whether multiple channels are connected to one single powered device.

公开(公告)号：US20170230080A1

公开(公告)日：2017-08-10

申请号：US15077245

申请日：2016-03-22

Applicant: IC Plus Corp.

Inventor： Hann Yun TARN

IPC: H04B3/54 ,  H04L12/10

CPC classification number: H04B3/54 ,  H04L12/10 ,  H04L43/08

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.

公开(公告)号：US11509492B2

公开(公告)日：2022-11-22

申请号：US17383467

申请日：2021-07-23

Applicant: IC Plus Corp.

Inventor： Chef Hsiao

IPC: G06F1/26 ,  H04L12/10 ,  H04L12/40 ,  G06F1/30

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.