公开(公告)号：US20220174253A1

公开(公告)日：2022-06-02

申请号：US17538362

申请日：2021-11-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soon Choul KIM ,  Joon Young JUNG ,  Dong Joon CHOI

IPC: H04N13/194 ,  H04N13/139 ,  H04N13/366

Abstract: An image receiving method includes receiving, from a plenoptic server, a high-quality image stream of a first viewpoint; requesting, from the plenoptic server, information on a second viewpoint to be shifted when a user's view is shifted, and requesting, from an edge server, a medium-quality image stream of the shifted second viewpoint; receiving, from the edge server, the medium-quality image stream of the second viewpoint and playing the received medium-quality image stream; and receiving information on the second viewpoint and subsequently playing a high-quality image stream of the second viewpoint received from the plenoptic server.

公开(公告)号：US20200220573A1

公开(公告)日：2020-07-09

申请号：US16737760

申请日：2020-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Myung-Sun BAEK ,  Jin Hyuk SONG ,  Joon Young JUNG ,  Heung Mook KIM ,  Eun Hee HYUN

IPC: H04B3/02 ,  H04L27/34

Abstract: An apparatus and a method for processing an uplink signal of cable broadcasting network including: modulating uplink data to be transmitted to a broadcasting station which is located at an end of the cable broadcasting network into a plurality of symbols; performing a correlation-coding on the plurality of symbols; and outputting an analog radio frequency (RF) signal corresponding to the plurality of correlation-coded symbols are provided.

公开(公告)号：US20190090029A1

公开(公告)日：2019-03-21

申请号：US16135373

申请日：2018-09-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Young JUNG ,  Soon Choul KIM ,  Heung Mook KIM

IPC: H04N21/643 ,  H04N21/2381 ,  H04N21/434 ,  H04L1/00 ,  H04L27/00

CPC classification number: H04N21/64322 ,  H04L1/0003 ,  H04L27/0008 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/4345

Abstract: Disclosed is a method of transmitting broadcasting data and apparatus for the same. According to an embodiment of the present disclosure, the method of transmitting broadcasting data includes: determining at least one IP-based data packet provided in different lengths received from a higher layer; generating a media transport packet having a fixed length by converting the at least one IP-based data packet; and generating broadcasting data by modulating the generated media transport packet on the basis of a broadcasting data modulation scheme and transmitting the broadcasting data.

公开(公告)号：US20170257468A1

公开(公告)日：2017-09-07

申请号：US15403616

申请日：2017-01-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Joon Young JUNG ,  Dong Joon CHOI ,  Nam Ho HUR

IPC: H04L29/08 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H04N21/854 ,  H04N21/434

CPC classification number: H04L69/324 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/27 ,  H03M13/2906 ,  H04L67/2823 ,  H04L69/22 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4382 ,  H04N21/854

Abstract: An apparatus and method for transmitting moving picture experts group (MPEG)-2 transport stream (TS) broadcasting data for a broadcasting service based on a physical layer transmission standard defined in a Data over Cable Service Interface Specification (DOCSIS) 3.1. The apparatus includes a converter configured to receive an input of broadcasting data including a plurality of MPEG-2 TS packets and to convert the broadcasting data to a first file with a forward error correction (FEC) codeword structure, and an encoder configured to encode the first file.

公开(公告)号：US20150121445A1

公开(公告)日：2015-04-30

申请号：US14303715

申请日：2014-06-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Young JUNG ,  Dong Joon CHOI ,  Namho HUR

IPC: H04N21/2362 ,  H04N21/2365 ,  H04N21/81 ,  H04N21/235 ,  H04N21/84 ,  H04N21/434 ,  H04N21/236 ,  H04N13/00

CPC classification number: H04N21/2362 ,  H04N21/2353 ,  H04N21/23614 ,  H04N21/2365 ,  H04N21/4343 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/816 ,  H04N21/84

Abstract: A broadcasting transmitting apparatus configures one broadcasting channel as at least two video streams, generates a program map table (PMT) representing configuration information of a stream included within the broadcasting channel, sets a program type provided through the corresponding broadcasting channel within the PMT, multiplexes the at least two video streams and signaling information, and transmits the multiplexed two video streams and signaling information through a broadcasting network.

Abstract translation: 广播发送装置将一个广播信道配置为至少两个视频流，生成表示广播信道中包含的流的配置信息的节目映射表（PMT），设置通过PMT内的相应广播信道提供的节目类型，复用 至少两个视频流和信令信息，并且通过广播网络发送多路复用的两个视频流和信令信息。

公开(公告)号：US20230199267A1

公开(公告)日：2023-06-22

申请号：US17895973

申请日：2022-08-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Eun Hee HYUN ,  Kwan Woong RYU ,  Je Won LEE ,  Joon Young JUNG ,  Dong Joon CHOI

IPC: H04N21/6373 ,  H04N21/238 ,  H04N21/24 ,  H04N21/218 ,  H04N21/437 ,  H04N21/239

CPC classification number: H04N21/6373 ,  H04N21/437 ,  H04N21/2393 ,  H04N21/2402 ,  H04N21/21805 ,  H04N21/23805

Abstract: An adaptive multi-view streaming processing method and apparatus for a multi-view stream is disclosed. Specifically, disclosed herein is a method and apparatus for adaptively processing or transmitting adaptive streaming by reflecting network states and changes in transmission environments in a multi-view streaming service environment where several or more multiple videos are simultaneously transmitted at an arbitrary moment. An adaptive streaming processing method for a multi-view stream may comprise selecting and downloading an i-th segment of a main view stream with a first quality level, inferring a size of an i-th segment of downloadable neighboring view streams based on a download time and transfer rate of the i-th segment of the main view stream, and selecting a second quality level corresponding to the inferred size of the i-th segment of the neighboring view streams and downloading the i-th segment of the neighboring view streams based on the selected second quality level.

公开(公告)号：US20170180049A1

公开(公告)日：2017-06-22

申请号：US15275280

申请日：2016-09-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Kyoon KIM ,  Joon Young JUNG ,  Dong Joon CHOI ,  Yong Seong CHO ,  Nam Ho HUR

IPC: H04B10/2575 ,  H04N21/236 ,  H04N21/458 ,  H04N21/434 ,  H04N21/61 ,  H04N21/438

CPC classification number: H04B10/25751 ,  H04N21/236 ,  H04N21/23614 ,  H04N21/434 ,  H04N21/4383 ,  H04N21/44222 ,  H04N21/458 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6582

Abstract: Provided are an apparatus and method for broadcasting-communications convergence in a hybrid fiber coax (HFC) network. The apparatus includes an optical connector configured to receive broadcast data and communication data from a cable broadcasting station through an optical cable, a channel switch configured to receive the broadcast data from the optical connector and select a piece of broadcast data to be transmitted to a subscriber from among pieces of the broadcast data, and a convergence processor configured to receive the communication data from the optical io connector, receive the selected piece of broadcast data from the channel switch, generate broadcasting-communications convergence data by multiplexing the received communication data and the selected piece of broadcast data, and transmit the broadcasting-communications convergence data.

公开(公告)号：US20170102757A1

公开(公告)日：2017-04-13

申请号：US15197016

申请日：2016-06-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong Oh KANG ,  Chang Seok BAE ,  Joon Young JUNG ,  Jang Ho CHOI

IPC: G06F1/32 ,  H04L12/803 ,  G06F9/455 ,  H04L12/24

CPC classification number: G06F9/45558 ,  G06F1/189 ,  G06F1/3206 ,  G06F9/50 ,  G06F9/5094 ,  G06F2009/45575 ,  H04L41/0893 ,  H04L41/0896 ,  H04L43/08

Abstract: A device for distributing a load and managing power of a virtual server cluster includes a monitoring unit configured to monitor a load distribution condition on server nodes included in a server cluster and a dynamic state of each of the server nodes, a server node information storage unit configured to store static state information of each of the server nodes, a policy determination unit configured to determine a load distribution policy and a power management policy for each of the server nodes using monitoring information and the static state information stored in the server node information storage unit, and a controller configured to control conversion of each of the server nodes into an active state or an inactive state according to the power management policy, and distribution of a load of a service request requested by a service client to activated server nodes according to the load distribution policy.

公开(公告)号：US20230144522A1

公开(公告)日：2023-05-11

申请号：US17940848

申请日：2022-09-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Joon Young JUNG ,  Je Won LEE ,  Dong Joon CHOI

IPC: H04N21/4385 ,  H04N21/43

CPC classification number: H04N21/4385 ,  H04N21/4307

Abstract: According to an embodiment of the present disclosure, there is provided a method and apparatus for transmitting/receiving a digital broadcast. The method for transmitting a digital broadcast, the method comprising: configuring AV data; configuring broadcast data; configuring application signaling information (ASI) by considering at least one of the AV data and the broadcast data or combination thereof; configuring an MPEG-based transport stream by multiplexing the AV data, the broadcast data and the ASI; and transmitting the MPEG-based transport stream, wherein the ASI includes data for driving an application executed by a broadcast receiver.

公开(公告)号：US20160164664A1

公开(公告)日：2016-06-09

申请号：US14959189

申请日：2015-12-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Young JUNG ,  Jae Ho LEE ,  Dong Joon CHOI ,  Nam Ho HUR

IPC: H04L7/00

CPC classification number: H04J3/0655 ,  H04B10/25751 ,  H04J14/02

Abstract: An apparatus and a method for converting an upstream radio frequency (RF) signal to a digital signal and transmitting the digital signal via an Internet protocol (IP) packet based on an optical network in a cable broadcasting network is provided. The apparatus for transmitting an upstream RF signal includes a detector configured to detect an upstream RF signal, and a transmitter configured to digitize the detected upstream RF signal and transmit the digitized RF signal to a headend via an IP packet.

Abstract translation: 提供了一种用于将上行射频（RF）信号转换为数字信号并且经由基于有线广播网络中的光网络的因特网协议（IP）分组来发送数字信号的装置和方法。 用于发送上行RF信号的装置包括被配置为检测上行RF信号的检测器和被配置为数字化所检测到的上行RF信号并经由IP分组将数字化的RF信号发送到头端的发送器。