公开(公告)号：US11469781B2

公开(公告)日：2022-10-11

申请号：US16776513

申请日：2020-01-30

Applicant: MEDIATEK INC.

Inventor： Chieh-Hsun Hsiao ,  Ming-Chou Wu ,  Wen-Chang Lee ,  Narayanan Baskaran ,  Wei-Hsin Tseng ,  Jenwei Ko ,  Po-Sen Tseng ,  Hsin-Hung Chen ,  Chih-Yuan Lin ,  Caiyi Wang

IPC: H04L5/22 ,  H04B1/00

Abstract: A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.

公开(公告)号：US10277179B2

公开(公告)日：2019-04-30

申请号：US15721960

申请日：2017-10-01

Applicant: MEDIATEK INC.

Inventor： Jui-Chih Kao ,  Ming-Da Tsai ,  Po-Sen Tseng

IPC: H03F3/191 ,  H03F3/45 ,  H03H7/38 ,  H03F3/19 ,  H03F3/21 ,  H03F1/32 ,  H03F1/56 ,  H03F3/26 ,  H03H7/40

Abstract: A radio-frequency (RF) power amplifier includes a matching network comprising at least one matching network circuit corresponding to at least one symmetry node, at least one detector for detecting power of a detected signal at the symmetry node of the matching network, and generating at least one control signal according to the power of the detected signal, wherein the detected signal is an odd harmonic of an RF signal when the RF power amplifier operates in a differential mode or an even harmonic of the RF signal when the RF power amplifier operates in a common mode, and at least one adjusting circuit for adjusting the RF signal according to the at least one control signal.

公开(公告)号：US20170214370A1

公开(公告)日：2017-07-27

申请号：US15374992

申请日：2016-12-09

Applicant: MediaTek Inc.

Inventor： Po-Sen Tseng ,  Wei-Kai Chang ,  I-No Liao ,  Tzyuan Shiu ,  Hsin-Hung Chen ,  Caiyi Wang

IPC: H03F1/32 ,  H04L27/26 ,  H04B1/04 ,  H04W52/36 ,  H03F3/24 ,  H03F1/02

CPC classification number: H03F1/3247 ,  H03F1/0222 ,  H03F1/025 ,  H03F1/0255 ,  H03F1/3282 ,  H03F3/189 ,  H03F3/245 ,  H04B1/04 ,  H04B2001/0425 ,  H04L27/2614 ,  H04W52/365

Abstract: According to at least one aspect, a communication system is provided. The communication system includes a power amplifier configured to amplify an input signal to generate an amplified output signal and provide the amplified output signal to an antenna, a power supply coupled to the power amplifier and configured to provide power to the power amplifier based on a power supply control signal, and a controller coupled to the power supply. The controller is configured to identify a target transmit power level for transmission of a wireless signal, generate the power supply control signal based on the target transmit power level using information indicative of a relationship between the target transmit power level and a setting of the power supply, generate performance information indicative of a characteristic of the communication system when the wireless signal is transmitted, and update the information indicative of the relationship using the performance information.