公开(公告)号：US20250167816A1

公开(公告)日：2025-05-22

申请号：US18950445

申请日：2024-11-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heesung LEE ,  Jaekwang KWON ,  Dongki KIM ,  Seongkyun KIM ,  Hyohyun NAM ,  Kyeongho YEOM ,  Daeyoung LEE

IPC: H04B1/00 ,  H04B1/16

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a data transmission rate higher than a 4G communication system such as LTE. An electronic device in a wireless communication system may include a PA and an SM configured to supply power to the PA, wherein the SM may include a linear SM to which a signal for an envelope tracking (ET) is input, and a first SM connected to the linear SM and comprising a first converter for direct current (DC)-DC conversion and at least one lumped element connected to the first converter, and the first SM may be configured to convert the signal for the ET into a first digital signal, to generate a first control signal for the first converter based on a change of a voltage value of the first digital signal, to generate a second digital signal by delaying the first digital signal by a predetermined clock, and to control the at least one lumped element based on the first digital signal and the second digital signal to adjust a current output from the first SM.

公开(公告)号：US20240322849A1

公开(公告)日：2024-09-26

申请号：US18305738

申请日：2023-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungsik KIM ,  Dongki KIM ,  Seongkyun KIM ,  Hyohyun NAM ,  Daeyoung LEE ,  Chaejun LEE

IPC: H04B1/04 ,  H03F1/56 ,  H03F3/21

CPC classification number: H04B1/04 ,  H03F1/565 ,  H03F3/21

Abstract: A communication device configured to transmit/receive a radio frequency (RF) signal is provided. The device includes a transceiver including an amplifier device using a multi-loop inter-stage matching (ISM) transformer, and a processor configured to control an operation of the amplifier based on a signal strength during transmission/reception of the RF signal. The transformer is disposed between a first amplifier and a second amplifier and includes a plurality of primary loops and a plurality of secondary loops, each primary loop includes an inductor component having a different size and a different Q-factor and each secondary loop includes an inductor component having a different size and a different Q-factor. The processor adjusts an attenuation level of the transformer by controlling a switching connection to the first amplifier and the second amplifier for one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops.

公开(公告)号：US20250141479A1

公开(公告)日：2025-05-01

申请号：US18923005

申请日：2024-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungjae OH ,  Hyunuk KANG ,  Daeyoung LEE

IPC: H04B1/04 ,  H04B1/00

Abstract: The disclosure relates to a fifth generation (5G) communication system or a sixth generation (6G) communication system. An electronic device in a wireless communication system can reduce or minimize the size of a power amplifier module (PAM) and can secure a relatively wide operating frequency band of the PAM.

公开(公告)号：US20150198833A1

公开(公告)日：2015-07-16

申请号：US14522787

申请日：2014-10-24

Applicant: Samsung Electronics Co., Ltd. ,  Samsung Display Co., Ltd.

Inventor： Jaeseung CHUNG ,  Dongouk KIM ,  Joonyong PARK ,  Bongsu SHIN ,  Daeyoung LEE ,  Sunghoon LEE ,  Gugrae JO ,  Sukgyu HAHM

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02F1/13362 ,  G02B5/3058 ,  G02F1/133528 ,  G02F1/133536 ,  G02F1/133555 ,  G02F1/133605 ,  G02F2001/133548 ,  G02F2001/133565

Abstract: A liquid crystal display includes a light source unit, a first substrate provided on the light source unit, an electrode layer provided on the first substrate, a second substrate separate from the electrode layer, a polarizing plate provided on a surface of the second substrate, a liquid crystal layer disposed between the electrode layer and the second substrate, a reflecting unit provided on a surface of the first substrate; and a wire grid polarizer provided on an opposite surface of the first substrate.

Abstract translation: 液晶显示器包括光源单元，设置在光源单元上的第一基板，设置在第一基板上的电极层，与电极层分离的第二基板，设置在第二基板的表面上的偏振板， 设置在电极层和第二基板之间的液晶层，设置在第一基板的表面上的反射单元; 以及设置在第一基板的相对表面上的线栅偏振器。

公开(公告)号：US20240333321A1

公开(公告)日：2024-10-03

申请号：US18615412

申请日：2024-03-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyohyun NAM ,  Jungsik KIM ,  Daeyoung LEE ,  Heesung LEE

IPC: H04B1/00 ,  H04B1/04

CPC classification number: H04B1/0078 ,  H04B1/04 ,  H04B2001/0408

Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A low noise amplifier (LNA) in a wireless communication system according to an embodiment of the disclosure includes a first transistor and a first feedback transformer in which a gate of the first transistor is connected to a primary coil of the first feedback transformer and a source of the first transistor is connected to a secondary coil of the first feedback transformer. The first feedback transformer is configured to implement positive feedback to maintain an in-phase signal at the gate of the first transistor and the source of the first transistor.