公开(公告)号：US11133961B2

公开(公告)日：2021-09-28

申请号：US17147495

申请日：2021-01-13

申请人： REALTEK SEMICONDUCTOR CORPORATION

发明人： Chien-Ming Wu ,  Chung-Ming Tseng

IPC分类号： H04L25/02 ,  H04B3/03 ,  H04L25/49

摘要： The present disclosure discloses a communication apparatus including a receiver circuit and a transmitter circuit having a signal processing circuit and a DAC circuit having a primary conversion circuit and a first hybrid conversion circuit. The primary conversion circuit converts and transmits a transmission signal from the signal processing circuit to a signal transmission path. The first hybrid conversion circuit converts the transmission signal to a first receiver resistor to generate a voltage drop. The receiver circuit receives a first actual receiving signal through the signal transmission path and the first receiver resistor. The primary conversion circuit operates according to a first current including a first and a second part currents and the first hybrid conversion circuit operates according to a second current. The first part current does not change according to a resistive change. The second part current and the second current change according to the resistive change.

公开(公告)号：US11509324B2

公开(公告)日：2022-11-22

申请号：US17319051

申请日：2021-05-12

申请人： REALTEK SEMICONDUCTOR CORPORATION

发明人： Shun-Ta Wu ,  Chun-Hsiung Chang ,  Chung-Ming Tseng ,  Shih-Hsiung Huang

IPC分类号： H03M1/38 ,  H03M1/12

摘要： An analog-to-digital conversion system includes an analog-to-digital converter and a power supply. The analog-to-digital converter is configured to convert an analog input signal to generate a digital output signal, and configured to generate a control signal according to a state of converting the analog input signal. The power supply is configured to provide a supply voltage to the analog-to-digital converter, and change the ability to provide the supply current of the power supply according to the control signal to stabilize the supply voltage.