公开(公告)号：US20240235588A9

公开(公告)日：2024-07-11

申请号：US18334334

申请日：2023-06-13

Applicant: MediaTek Inc.

Inventor： Solti Peng ,  Jenwei Ko

IPC: H04B1/04

CPC classification number: H04B1/0475

Abstract: Described herein are systems with switchable circuitry configured to selectively couple transmitter outputs to processing hardware, which may selectively route subsets of distortion measurements from transmitters for DPD processing that compensates for the measured distortion. The switchable nature of the distortion measurement propagation paths permits the paths to be made substantially shorter than static paths, resulting in improved (e.g., reduced and/or more uniform) attenuation and/or phase change across a transceiver array. In one example, measurement propagation paths may be no longer than a row or column of the array. In some embodiments, systems described herein may be suitable for implementation at mmW transmit and/or receive frequencies, where the length of measurement paths may have a significant impact on attenuation and phase changes.

公开(公告)号：US11929767B2

公开(公告)日：2024-03-12

申请号：US17888475

申请日：2022-08-16

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: H04W52/52 ,  H04B1/00 ,  H04B17/345

CPC classification number: H04B1/0057

Abstract: A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.

公开(公告)号：US20200287574A1

公开(公告)日：2020-09-10

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: 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：US20240137054A1

公开(公告)日：2024-04-25

申请号：US18334334

申请日：2023-06-12

Applicant: MediaTek Inc.

Inventor： Solti Peng ,  Jenwei Ko

IPC: H04B1/04

CPC classification number: H04B1/0475

Abstract: Described herein are systems with switchable circuitry configured to selectively couple transmitter outputs to processing hardware, which may selectively route subsets of distortion measurements from transmitters for DPD processing that compensates for the measured distortion. The switchable nature of the distortion measurement propagation paths permits the paths to be made substantially shorter than static paths, resulting in improved (e.g., reduced and/or more uniform) attenuation and/or phase change across a transceiver array. In one example, measurement propagation paths may be no longer than a row or column of the array. In some embodiments, systems described herein may be suitable for implementation at mmW transmit and/or receive frequencies, where the length of measurement paths may have a significant impact on attenuation and phase changes.

公开(公告)号：US20220393704A1

公开(公告)日：2022-12-08

申请号：US17888475

申请日：2022-08-16

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: H04B1/00

Abstract: A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.

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：US10476451B2

公开(公告)日：2019-11-12

申请号：US15872740

申请日：2018-01-16

Applicant: MediaTek Inc.

Inventor： Xiaochuan Guo ,  Jenwei Ko ,  Wen-Chang Lee ,  Changhua Cao ,  Caiyi Wang

IPC: H03F3/217 ,  H03F3/191 ,  H03F3/45 ,  H03F3/24 ,  H03F1/56 ,  H03F1/02 ,  H03F3/195 ,  H03H7/01

Abstract: A class-F power amplifier (PA) with a matching network is disclosed herein. The class-F PA comprises a first switch and a second switch operating in differential mode, with a second harmonic trap circuitry selectively terminating the drain terminals to ground at a second harmonic frequency. The second harmonic trap circuitry comprises a plurality of lumped inductive and capacitive components. The PA further comprises a common mode trap and a matching network to reduce the imbalance of the drain terminal impedance between first harmonics and third harmonics.