公开(公告)号：US20240176004A1

公开(公告)日：2024-05-30

申请号：US18060093

申请日：2022-11-30

Applicant: MEDIATEK Inc.

Inventor： Wei-Hsuan CHANG ,  Cheng-Han LEE ,  Chih-Wei LEE

IPC: G01S13/08 ,  G01S7/03 ,  G01S7/40

CPC classification number: G01S13/08 ,  G01S7/034 ,  G01S7/4013

Abstract: An electronic device comprises: a radio frequency (RF) front end circuit for generating wireless signals; an antenna array for transmitting the wireless signals generated by the RF front end circuit and receiving the wireless signals transmitted by the antenna array; and a control unit coupled to the RF front end circuit. In the embodiments, a receiving power or a receiving power difference is estimated based on the wireless signals received by the RF front end circuit; and a distance information between an external object and the electronic device is determined based on the receiving power difference, or whether the external object is within a detection area of the electronic device is determined based on the receiving power.

公开(公告)号：US20240258712A1

公开(公告)日：2024-08-01

申请号：US18161108

申请日：2023-01-30

Applicant: MEDIATEK Inc.

Inventor： Wei-Hsuan CHANG ,  Cheng-Han LEE ,  Chih-Wei LEE

IPC: H01Q21/06 ,  H01Q1/24 ,  H01Q21/08

CPC classification number: H01Q21/065 ,  H01Q1/241 ,  H01Q21/08

Abstract: The invention provides an antenna subsystem with improved radiation performances. The antenna subsystem may comprise an antenna-in-module (AiM), an auxiliary structure being conductive, and a support structure being nonconductive and disposed between the AiM and the auxiliary structure. The AiM may comprise a base, and one or more radiators being conductive. The antenna subsystem may provide a spherical coverage by a combination of a first component of gain and a second component of gain. The auxiliary structure may be insulated from the one or more radiators, and may be configured for orienting a radiation pattern of the first component of gain and a radiation pattern of the second component of gain to two different directions respectively; and/or, causing the spherical coverage provided by the antenna subsystem to be broader than a spherical coverage provided by the AiM alone.

公开(公告)号：US20240204411A1

公开(公告)日：2024-06-20

申请号：US18067926

申请日：2022-12-19

Applicant: MEDIATEK Inc.

Inventor： Wei-Hsuan CHANG ,  Cheng-Han LEE ,  Chih-Wei LEE

IPC: H01Q9/04 ,  H04B5/00

CPC classification number: H01Q9/0428 ,  H04B5/0043

Abstract: The invention provides method and apparatus augmenting functionality of an antenna-in-module (AiM) of a user equipment (UE) to proximity detection (and more) besides wireless communication. The AiM may comprise a radiator set and a channel circuit set. The radiator set may comprise one or more radiators, and the channel circuit set may comprise one or more channel circuits. The method may comprise: causing a first subset of the channel circuit set to transmit outgoing electromagnetic (EM) waves by circular polarization of a first rotation sense, causing a second subset of the channel circuit set to receive incoming EM waves by circular polarization of a second rotation sense different from the first rotation sense, accordingly obtaining one or more received detection signals, and executing the proximity detection according to the one or more received detection signals.

公开(公告)号：US20250030446A1

公开(公告)日：2025-01-23

申请号：US18354933

申请日：2023-07-19

Applicant: MEDIATEK INC.

Inventor： Cheng-Han LEE ,  Yu-Han CHENG ,  Chih-Wei LEE

IPC: H04B1/3827 ,  H04W52/22 ,  H04W52/36

Abstract: A method for TA-SAR optimization with an antenna tuner is provided. The antenna tuner has multiple tuner states. An instant SAR level that is higher than a threshold SAR level is calculated. A suitable tuner among the multiple tuner states is determined based on the instant SAR level. The tuner is switched to the suitable tuner state to transmit signals with the TX power level corresponding to the suitable tuner state.

公开(公告)号：US20240088930A1

公开(公告)日：2024-03-14

申请号：US17930501

申请日：2022-09-08

Applicant: MEDIATEK INC.

Inventor： Chun-Yen WU ,  Cheng-Han LEE

IPC: H04B1/3827 ,  H04W52/36

CPC classification number: H04B1/3838 ,  H04W52/36

Abstract: Dynamic tuning method for a specific absorption rate (SAR) is provided. The dynamic tuning method is applied to user equipment (UE). The dynamic tuning method may include the following steps: the UE may determine the back-off value corresponding to the current antenna state; and the UE may tune the conducted power of the radio frequency (RF) circuit of the UE based on the back-off value.