公开(公告)号：US20160188508A1

公开(公告)日：2016-06-30

申请号：US14701573

申请日：2015-05-01

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Ming-Hui Tung

IPC: G06F13/362 ,  G06F13/42 ,  G06F13/40

CPC classification number: G06F13/362 ,  G06F13/4022 ,  G06F13/4068 ,  G06F13/4282

Abstract: A multiplex module for high-speed serial transmission is provided. The multiplex module has at least one external connection terminal and at least one circuit connection terminal. The multiplex module includes a multiplexer and at least one resistor. The multiplexer includes a plurality of switches and each switch has a first end and a second end. The at least one resistor is coupled to the multiplexer. The at least one resistor is respectively coupled to the external connection terminal. The first end of each switch is coupled to the at least one external connection terminal, and the second end of each switch is coupled to the at least one circuit connection terminal. The multiplexer is configured to operatively switch among a plurality of signal links for conducting a signal transmission. The resistor is configured to correspondingly cancel a reflecting signal reflected from the external connection terminal during the signal transmission.

Abstract translation: 提供了一种用于高速串行传输的复用模块。 多路复用模块具有至少一个外部连接端子和至少一个电路连接端子。 多路复用模块包括多路复用器和至少一个电阻器。 多路复用器包括多个开关，每个开关具有第一端和第二端。 至少一个电阻器耦合到多路复用器。 至少一个电阻器分别耦合到外部连接端子。 每个开关的第一端耦合到至少一个外部连接端子，并且每个开关的第二端耦合到至少一个电路连接端子。 复用器被配置为在多个信号链路之间可操作地切换以进行信号传输。 电阻器被配置为在信号传输期间相应地消除从外部连接端子反射的反射信号。

公开(公告)号：US09621158B2

公开(公告)日：2017-04-11

申请号：US14867608

申请日：2015-09-28

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Ming-Hui Tung ,  An-Ming Lee ,  Leaf Chen ,  Chien-Wen Chen ,  Guan-Yu Chen ,  Tsung-Yen Liu

IPC: H03K17/00 ,  H03K17/693

CPC classification number: H03K17/693 ,  H03K17/102 ,  H03K17/122 ,  H03K17/162 ,  H03K2017/066

Abstract: A switch and a multiplexer including the same are provided, which are applicable to selectively transmit the high frequency signal from an input terminal to an output terminal therethrough. The switch includes a switch device and a variable resistor. The switch device is connected between the input terminal and the output terminal, and the switch device includes a control terminal and is configured to be switched between ON and OFF according to a switch controlling signal provided to the control terminal. The variable resistor is connected to the control terminal and configured to change to a first resistance while the switch device is ON, and to change to a second resistance while the switch device is OFF according to a resistor controlling signal. The first resistance is higher than the second resistance, and the resistor controlling signal is changed corresponding to the switch controlling signal.

公开(公告)号：US20200052681A1

公开(公告)日：2020-02-13

申请号：US16392702

申请日：2019-04-24

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Ming-Hui Tung ,  LI-JUN GU ,  Guan-Yu Chen ,  Bo-Yu Chen

IPC: H03K5/156

Abstract: A clock circuit has a clock input terminal, a first clock output terminal, and a second clock output terminal. The clock circuit includes a pulse width adjustment module, a sampling module, a comparing module, and a differential signal converting module. A differential input terminal is electrically connected to a pulse width output terminal of the pulse width adjustment module. A positive differential signal output terminal and a negative differential signal output terminal are electrically connected to the first clock output terminal of the clock circuit and the second clock output terminal to output two clock signals with a phase difference of 180 degrees, respectively. A second input terminal of the sampling module is electrically connected to the second clock output terminal.

公开(公告)号：US10282345B2

公开(公告)日：2019-05-07

申请号：US15080279

申请日：2016-03-24

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Chien-Wen Chen ,  Ming-Hui Tung

IPC: G06F13/42 ,  G06F13/38 ,  G06F13/40

Abstract: A combo chip is provided. The combo chip is applicable to an USB connector, and includes an USB type-C circuit, an USB non-type-C circuit, a switch unit, and a mode control unit. The switch unit is connected to the USB type-C circuit and the USB non-type-C circuit, and the mode control unit is connected to a control terminal of the switch unit. After performing one or more mode determination procedures, the mode control unit controls the switch unit to connect the USB type-C circuit to a first pin and a second pin while disconnecting the USB non-type-C circuit from the first pin and the second pin, or otherwise controls the switch unit to connect the USB non-type-C circuit to the first pin and the second pin while disconnecting the USB type-C circuit from the first pin and the second pin.