公开(公告)号：US20210351165A1

公开(公告)日：2021-11-11

申请号：US17077302

申请日：2020-10-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongsoo LEE ,  Seogho LIM ,  Changho SHIN ,  Jongpil WON ,  Sangsu LEE

IPC: H01L25/075 ,  H01L33/60 ,  G02F1/13357 ,  H05K1/02

Abstract: A light emitting device includes a printed circuit board (PCB) substrate, a first ink layer covering the PCB substrate, the first ink layer having a first refractive index, light emitters on the first ink layer, and a second ink layer on the first ink layer and spaced apart from the light emitters, the second ink layer having a second refractive index different from the first refractive index.

公开(公告)号：US20230006724A1

公开(公告)日：2023-01-05

申请号：US17940454

申请日：2022-09-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwonyeol PARK ,  Dongwoo KIM ,  Minho SHIN ,  Changho SHIN ,  Jonghun RHEE

IPC: H04B7/06 ,  H04L12/18 ,  H04L1/00 ,  H04W4/06 ,  H04L5/00 ,  H04W52/16

Abstract: A method of receiving multicast transmission from a base station includes receiving allocation information about a feedback channel including a plurality of resources shared by another terminal, determining feedback information based on an estimated channel with the base station, determining a plurality of transmission power levels respectively corresponding to the plurality of resources based on the feedback information, and transmitting channel feedback to the base station on the feedback channel based on the plurality of transmission power levels.