公开(公告)号：US11368681B2

公开(公告)日：2022-06-21

申请号：US16302462

申请日：2017-07-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Ho Lee ,  Sung Chang Lim ,  Jung Won Kang ,  Hyun Suk Ko ,  Dong San Jun ,  Ha Hyun Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/107 ,  H04N19/176 ,  H04N19/117 ,  H04N19/147 ,  H04N19/119 ,  H04N19/11 ,  H04N19/105 ,  H04N19/30 ,  H04N19/91 ,  H04N19/146 ,  H04N19/44 ,  H04N19/126 ,  H04N19/52

Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.

公开(公告)号：US11343530B2

公开(公告)日：2022-05-24

申请号：US16461388

申请日：2017-11-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ha Hyun Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/537

Abstract: The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.

公开(公告)号：US11336899B2

公开(公告)日：2022-05-17

申请号：US16321173

申请日：2017-08-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong San Jun ,  Ha Hyun Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/159 ,  H04N19/513 ,  H04N19/463 ,  H04N19/105 ,  H04N19/13 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593 ,  H04N19/96

Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

公开(公告)号：US11206407B2

公开(公告)日：2021-12-21

申请号：US17038332

申请日：2020-09-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Dong San Jun ,  Hyun Suk Ko ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/139 ,  H04N19/117 ,  H04N19/51 ,  H04N19/52 ,  H04N19/124 ,  H04N19/91

Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.

公开(公告)号：US10951320B2

公开(公告)日：2021-03-16

申请号：US16599357

申请日：2019-10-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Joon Young Kim ,  Min Kyu Sung ,  Jong Hyun Lee ,  Seung Hyun Cho

IPC: H04B10/50 ,  H04B7/04 ,  H04B10/2575

Abstract: An apparatus for generating a broadband single-sideband signal based on a laser diode includes a first optical coupler configured to receive an optical carrier signal to divide the optical carrier signal into signals corresponding to a plurality of paths, a hybrid coupler configured to perform Hilbert transform on a radio frequency (RF) signal, a first slave laser and a second slave laser each configured to modulate optical output powers of the divided optical carrier signals by using a Hilbert-transformed RF signal, and a second optical coupler configured to receive an optical output power-modulated optical carrier signal to output a single-sideband signal.

公开(公告)号：US20140003819A1

公开(公告)日：2014-01-02

申请号：US13930320

申请日：2013-06-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Hyun Cho ,  Seung Il Myong ,  Kyeong Hwan Doo ,  Jie Hyun Lee ,  Sang Soo Lee ,  Jong Hyun Lee

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/2602 ,  H04L27/265 ,  H04L27/2655 ,  H04L27/2697 ,  H04L27/3405 ,  H04L27/3455

Abstract: Disclosed is a cloud base station in an orthogonal frequency division multiplexing (OFDM)-based fixed-mobile converged access network and an operation method thereof. The cloud base station may include a physical (PHY) layer unit to perform a quadrature amplitude modulation (QAM) of a parallel signal received from a media access control (MAC) layer per subcarrier, and an optical orthogonal frequency division multiplexing (OFDM) transceiver to transform the QAM modulated subcarriers into a time domain to generate an OFDM sample per subcarrier, add a cyclic prefix (CP) and control information to for operating an enhanced radio unit (eRU) to the OFDM sample per subcarrier to generate a downstream signal, and transmit the downstream signal.

Abstract translation: 公开了一种基于正交频分复用（OFDM）的固定移动融合接入网络中的云基站及其操作方法。 云基站可以包括用于执行从每个子载波的媒体访问控制（MAC）层接收的并行信号的正交幅度调制（QAM）的物理（PHY）层单元，以及光学正交频分复用（OFDM）收发器 将QAM调制的子载波变换成时域以产生每个子载波的OFDM样本，添加循环前缀（CP）和控制信息，以用于对每个子载波的OFDM样本操作增强型无线电单元（eRU）以生成下行信号， 并发送下行信号。