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

IPC: H04L12/10 ,  G06F1/26 ,  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：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

IPC: H04L12/10 ,  H04L12/12 ,  G06F1/26

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.

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.

公开(公告)号：US09819501B2

公开(公告)日：2017-11-14

申请号：US15077425

申请日：2016-03-22

Applicant: IC Plus Corp.

Inventor： Chung Cheng Chen ,  Chuan Ching Yu

IPC: H04L12/10

CPC classification number: H04L12/10

Abstract: A power source equipment for Power over Ethernet system provides an adjustment mechanism for the maximum allowable power of communication port connected to the power source, whereby when a device requests to join as a powered device but a maximum allowable power of a corresponding class is greater than the difference of the total supplied power and the sum of maximum allowable power designated to the then connected powered devices, the maximum allowable power of the respective powered devices may be adjusted, to generate sufficient allowable power for the requesting device. A power supplying method using the adjustment mechanism is also disclosed.

公开(公告)号：US08368458B2

公开(公告)日：2013-02-05

申请号：US13038387

申请日：2011-03-02

Applicant: Ting-Ko Liao ,  Tsu-Chun Liu

Inventor： Ting-Ko Liao ,  Tsu-Chun Liu

IPC: G05F1/10 ,  G05F3/02

CPC classification number: H03H7/38

Abstract: An impendence tuning apparatus is disclosed. The impendence tuning apparatus includes an operation amplifier, a reference resistor, a tuned resistor, a switching module, a current generator, a current detector and a controller. A first input terminal of the operation amplifier receives a basic voltage and the second terminal of the operation amplifier coupled to a first end. The switching module receives a control and coupled the first end to the tuned resistor or the reference resistor accordingly for generating a tuned current or a reference current separately. The current generator receives and mirrors the reference current or the tuned current to generate a first current and a second current. The current detector receives the first and the second currents and outputs current values the first and the second currents to the controller. The controller tunes an impendence of the tuned resistor according to the first and the second currents.

Abstract translation: 公开了一种阻抗调节装置。 阻抗调节装置包括运算放大器，参考电阻器，调谐电阻器，开关模块，电流发生器，电流检测器和控制器。 运算放大器的第一输入端子接收基本电压，并且运算放大器的第二端耦合到第一端。 开关模块接收控制，并将第一端耦合到调谐电阻器或参考电阻器，以分别产生调谐电流或参考电流。 电流发生器接收并镜像参考电流或调谐电流以产生第一电流和第二电流。 电流检测器接收第一和第二电流，并将第一和第二电流的电流值输出到控制器。 控制器根据第一和第二电流调谐调谐电阻的阻抗。

公开(公告)号：US08295476B2

公开(公告)日：2012-10-23

申请号：US12259796

申请日：2008-10-28

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04M9/08

CPC classification number: H04B3/23

Abstract: An echo canceller and an echo cancellation method are provided. In the echo cancellation method, a transmitting data sequence is received, and M taps are provided accordingly. In addition, the M taps are received, and N taps are output according to an echo distribution information, in which the M and N are natural numbers, and M>N. Besides, the N taps are multiplied by N tap coefficients respectively to generate N products. Further, the N products are summed up to generate an echo cancellation signal. Thereby, the cost of the echo cancellation is decreased.

Abstract translation: 提供回声消除器和回声消除方法。 在回波消除方法中，接收发送数据序列，并相应地提供M个抽头。 另外，接收M个抽头，根据回波分布信息输出N个抽头，其中M和N是自然数，M> N。 此外，N个抽头分别乘以N个抽头系数，以产生N个乘积。 此外，总结N个乘积以产生回波消除信号。 因此，回波抵消的成本降低。

公开(公告)号：US08229038B2

公开(公告)日：2012-07-24

申请号：US12265987

申请日：2008-11-06

Applicant: Tsu-Chun Liu

Inventor： Tsu-Chun Liu

IPC: H04L27/06 ,  H03D1/00

CPC classification number: H04L27/01 ,  H04L1/0053 ,  H04L1/201

Abstract: A transceiver apparatus, a receiver and a power saving method thereof are provided. The receiver includes an analog-to-digital converter, an equalizer, a slicer, a delay unit, a decoder, a select unit and a control unit. The analog-to-digital converter transforms a received signal into a digital signal. The equalizer adjusts the digital signal to generate an equalized signal. The slicer receives and slices the equalized signal and generates a sliced signal. The delay unit delays the sliced signal. The decoder determines whether to decode the equalized signal or not according the control signal. The select unit selects one of the output of the delayed sliced signal and the output of the decoder to be an output signal according to a second control signal. The control unit determines whether to enable the control signal and the second control signal according to the state of the sliced signal and the output signal.

Abstract translation: 提供收发器装置，接收器和省电方法。 接收机包括模数转换器，均衡器，限幅器，延迟单元，解码器，选择单元和控制单元。 模数转换器将接收的信号转换为数字信号。 均衡器调整数字信号以产生均衡的信号。 切片器接收并切片均衡信号并产生切片信号。 延迟单元延迟切片信号。 解码器根据控制信号确定是否解码均衡信号。 选择单元根据第二控制信号选择延迟分片信号的输出和解码器的输出之一作为输出信号。 控制单元根据分片信号和输出信号的状态确定是否启用控制信号和第二控制信号。

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

IPC: H04W74/08 ,  H04W56/00

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.

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

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

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.

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.