Electronics and Telecommunications Research Institute

Namho Hur

Hyoungsoo Lim

Soo-In Lee

Joungil Yun

Yun Jeong Song

Jin-Woong Kim

Dong Joon Choi

Young Su Kim

Byungjun Bae

Hyun Jun Lee

Gwang-Soon Lee

Kug-Jin Yun

Hyun-Jeong Yim

Kyu Tae Yang

Jin Woong Kim

Soo In Lee

Kug Jin Yun

Joon Young Jung

Woo-Suk Kim

Jae-Young Lee

Hyun Woo Lee

Sung-Hoon Kim

Hyun Jae Lee

Hun Hee Lee

Sang-Jung Ra

Bong-Ho Lee

Kwanghee Jung

Gun Bang

Yong-Hoon Lee

Heung Mook Kim

Gwang Soon Lee

Sung Ik Park

Jong Soo Lim

Soon Choul Kim

Young-Kwon Lim

Hyoung Soo Lim

Jae-Ho Lee

Yoon-Jin Lee

Myung-Sun Baek

Jae Hyun Seo

Suk-Hee Cho

Jinwoong Kim

Gi-Mun Um

Jin Hyuk Song

Jun Ho Kim

Jae Hwui Bae

Sun Hyoung Kwon

Donghoon Kang

Wangrok Oh

Bong Ho Lee

Bongho Lee

Gwangsoon Lee

Kugjin Yun

Eun-Young Chang

Taeone Kim

Sangwoon Kwak

Tae Jin Jung

Ho Jun Kim

Disclosed are an apparatus and method for providing an offloading service. A method of providing an offloading service according to an example embodiment includes streaming, to a user terminal including a cellular network receiver and a broadcast network receiver, media content data through a cellular network, transmitting, to the user terminal, an offloading service providing signal for activating the broadcast network receiver of the user terminal through the cellular network, transmitting, to the user terminal, a broadcast signal including connection information of a broadcast network to which the user terminal is to be connected so as to receive the media content data, through the cellular network, and broadcasting the media content data through the broadcast network.

Apparatus and method for providing offloading service

A method of estimating an integer frequency offset and compensating for the integer frequency offset by an estimated error is provided. A frequency offset estimation method may include receiving a reception signal including PLC data and a physical layer link channel (PLC) preamble, detecting first position information on a position of a subcarrier of the PLC preamble in a frequency axis from the reception signal through a cross-correlation between the PLC preamble and the reception signal, detecting second position information on the position of the subcarrier of the PLC preamble defined in a transmission end by restoring the PLC data, and calculating a frequency offset by comparing the first position information with the second position information.

Frequency offset estimation and compensation method

A device for transmitting a media service in a hybrid network, which is a combination of a broadcasting network and a communication network, includes a streaming server, a streaming client, a multiplexer, and a transmitter. The streaming server generates media segments including media data and a metadata file including temporal order information and downloading and reproduction information of the media segments corresponding to a plurality of profiles. The streaming client selects a profile according to a transmission bit ratio appropriate for a broadcasting resource allocation state, requests a media segment with quality that is suitable for the broadcasting resource allocation state from the streaming server, and downloads the same. The multiplexer multiplexes part of information of the metadata file on the profile selected from among the media segment and the metadata file of the plurality of profiles to generate a baseband frame. The transmitter converts the baseband frame into a broadcasting signal and transmits the same through a broadcasting network.

Device and method for transmitting and receiving media service in hybrid network

Disclosed is a method and device for transmitting media data in a digital broadcasting system for allocating media data to a superframe, and transmitting a superframe in which a time length of media data corresponds to a time length of the superframe.

Method and device for allocating media data to a superframe and transmitting a superframe in which a time length of media data corresponds to a time length of the superframe in a digital broadcasting system

A Faster-Than-Nyquist (FTN)-based transmitting apparatus segments an input data bit string into a plurality of partial bit strings, simultaneously channel-encodes each of the plurality of partial bit strings, simultaneously modulates each of the plurality of channel encoded bit strings to generate a plurality of modulation symbol sequences, and then pulse-shapes and transmits the plurality of modulation symbol sequences at a speed faster than a Nyquist rate.

Apparatus and method for transmitting and receiving based on faster-than-nyquist

A receiving terminal in a hybrid network receives a video stream through a broadcasting network. The receiving terminal receives a high speed video stream streamed at a high speed for a defined first period from a first time when switching from the broadcasting network to a communication network depending on a receiving state of the broadcasting network is determined, receives a live video stream streamed in a live form from any one time of the first period, and generates a continuous video stream using the video stream received through the broadcasting network, the high speed video stream, and the live video stream.

Apparatus and method for receiving video service in hybrid network

A signal transmitting and receiving method and an apparatus for selecting an interference pattern from a security key and transmitting and receiving a signal based on the selected interference pattern are provided.

Method and apparatus for transmitting and receiving signal based on interference

A transmitting apparatus generates a modulation pattern code corresponding to an input security key and modulates and transmits the bit stream with a corresponding modulation method for a duration of a corresponding modulation method while changing a modulation method according to the generated modulation pattern code.

Method and apparatus for transmitting and receiving

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.

Apparatus and method for transmitting and receiving broadcasting

Disclosed is a reception apparatus including a basic service reception unit to demodulate and channel-decode a signal received through one broadcasting channel among broadcasting channels for a basic service, and to extract a transport stream, an additional service reception unit to demodulate and channel-decode a signal received through a broadcasting channel for an additional service combined with the basic service, and to extract a transport stream, an integrated demultiplexer to respectively demultiplex the transport stream provided for the basic service and the transport stream provided for the additional service in order to extract at least one transport stream, and a source decoder to respectively decode the demultiplexed transport stream provided for the basic service and the demultiplexed transport stream provided for the additional service in order to broadcast at least one of a basic source and an additional source combined with the basic source.

Method and apparatus for reception and transmission

Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled.

Multi-view video coding/decoding method and apparatus

Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.

Method and apparatus for transmitting and receiving signal

An apparatus of transmitting data in a multi-carrier system includes: a plurality of pulse-shaping filters for performing pulse shaping of incoming data symbols during a set pulse-shaping period; and a plurality of frequency converters convert signals that are pulse-shaped by the plurality of pulse-shaping filters into signals with frequency bands for a plurality of subcarriers.

Apparatus and method of transmitting data in multi-carrier system

In an orthogonal frequency division multiplexing (OFDM) wireless communication system, when path delay information is received from a reception apparatus through a return path after data transmission, a length of a cyclic prefix included in a transmitted signal is adjusted on the basis of a delay value included in the path delay information.

Method for transmitting data using variable guard interval and apparatus thereof

An apparatus and a method for synchronizing and providing a stereoscopic image are provided. The method includes storing a first image, receiving a second image that forms a stereoscopic image with the first image correlated, synchronizing the first image and the second image, and outputting the synchronized two images.

Apparatus and method for synchronizing stereoscopic image, and apparatus and method for providing stereoscopic image based on the same

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Daejeon, South Korea

Namho Hur