Electronics and Telecommunications Research Institute

Intellectual Discovery Co., Ltd.

Nextwill Co., Ltd.

Seoul, Republic of Korea

Hyoungsoo Lim

Heung-Mook Kim

Namho Hur

Joungil Yun

Soo-In Lee

Yun Jeong Song

Sung-Ik Park

Young Su Kim

Byungjun Bae

Hun Hee Lee

Kyu Tae Yang

Wangrok Oh

Donghoon Kang

Heung Mook Kim

Jae-Hyun Seo

Myung-Sun Baek

Jae Hyun Seo

Hyun-Jeong Yim

Woo-Suk Kim

Jae-Young Lee

Nam-Ho Hur

Sung-Hoon Kim

Nam Ho Hur

Jong-Suk Chae

Soo In Lee

Sung Ik Park

Ho-Min Eum

Jong-Soo Lim

Ho Min Eum

Sang-Woon Kwak

Kug-Jin Yun

Young-Su Kim

Yun-Jeong Song

So-Ra Park

Yang-Su Kim

Won Gi Seo

Young Woo Suh

Jae Kwon Lee

Sangwoon Kwak

Kyu-Tae Yang

Bongho Lee

Ha Kyun Mok

Ju Byung Kim

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

Provided is an apparatus for transmitting a signal based on a non-uniform inter-symbol interference (ISI) pattern, the apparatus that may transmit an output signal generated by modulating an input signal based on a parameter sequence to be used to control an interference pattern and a position of a transmission signal for each symbol using a faster than Nyquist (FTN) scheme.

Communication apparatus and method

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

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

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals. The apparatus includes a receiver for receiving the mixed signals and outputting mixed signals of a predetermined band, a first demodulator for receiving the mixed signals of the predetermined band and generating baseband mixed signals, an original data generator for receiving the baseband mixed signals and generating original data, an original signal generator for receiving the original data and generating baseband original signals, a modulator for receiving the baseband original signals and generating original signals of a predetermined band, a subtractor for subtracting the original and mixed signals of the predetermined band to thereby generate additional signals of a predetermined band, a second demodulator for receiving the additional signals of the predetermined band and generating baseband additional signals, and an additional data generator for receiving the baseband additional signals and generating additional data.

Method and apparatus for transmitting/receiving broadcasting-communication data

Provided are an apparatus for addition data transmission includes: an IF broadcasting signal generating unit receiving the broadcast data, and FEC and modulation of the received broadcast data to generate a broadcasting signal in an intermediate frequency (IF) band; an IF addition signal generating unit receiving the addition data to generate an addition signal in the IF band by using direct sequence spread spectrum (DSSS); an average power controlling unit controlling average power of the addition signal in the IF band; a signal combining unit combining the broadcasting signal in the IF band and the addition signal in the IF band to generate a combination signal; an RF upward converting unit upwardly converting the combination signal in a signal in a radio frequency (RF) band to a combination signal in the RF band; and a transmitting unit transmitting the combination signal in the RF band.

Method and apparatus for addition data transmission and reception in digital broadcast system

Disclosed is an apparatus and method for providing a broadcasting service in a single frequency broadcasting network, and a system thereof. The apparatus for receiving broadcasting signals includes an RF receiver configured to receive an RF broadcasting signal having identification information to identify a broadcasting signal transmitter and down-convert the received RF broadcasting signal; a reception characteristic measurer configured to measure reception characteristics of the RF broadcasting signal based on the identification information and generate reception characteristic information; and a reception characteristic transmitter configured to transmit the reception characteristic information to a broadcasting system.

Apparatus and method for providing broadcasting service and system thereof

An apparatus for transmitting broadcasting content including a control signal in a broadcasting network, the apparatus includes: a modulator configured to modulate broadcasting content by a predetermined modulation method; a control signal generator configured to generate a control signal for remote control of infrastructure; an adder configured to add the control signal to the modulated broadcasting content; and a DTV transmitter configured to convert the added signal to a DTV broadcasting signal and transmit the DTV broadcasting signal.

Apparatus and method for controlling infrastructure based on broadcasting signals

Modulating method and apparatus in a broadcasting and communication system are provided. The modulating apparatus includes: a first quadrature phase shift keying (QPSK) modulating unit QPSK-modulating first data including in-phase (I) data and quadrature (Q) data to generate a first signal; a phase rotating unit rotating a phase of the first signal by &#x3b8; to generate a phase rotated signal; a second QPSK modulating unit QPSK-modulating second data different from the first data and including I' data and Q&#x2032; data to generate a second signal; and a layer modulating unit modulating the phase rotated signal and the second signal to output a final signal.

Method and apparatus of modulating signal in broadcasting and communication system

An apparatus for transmitting and receiving broadcasting-communication data, the apparatus including an original signal generator configured to receive the original data and generate baseband original signals, a first modulator configured to receive the baseband additional signals and generate original signals of a predetermined band, an additional signal generator configured to receive the additional data and generate baseband additional signals, a second modulator configured to receive the baseband additional signals and generate additional signals of a predetermined band, an average power controller configured to control an average power of the additional signals of the predetermined band, an inserter configured to insert the additional signals of the predetermined band with a controlled average power to the original signals of the predetermined band to thereby generate mixed signals of a predetermined band, and a transmitter configured to transmit the mixed signals of the predetermined band.

A traffic light control apparatus and method is provided. The traffic light control apparatus for controlling an emergency vehicle in a traffic network includes: a traffic network control unit configured to determine overall traffic network control and traffic light control for supporting movement of the emergency vehicle during an emergency and transmit a control signal; a traffic light control unit configured to receive the control signal to control a traffic light; and an emergency vehicle control unit configured to transmits a traffic light control mode cancellation request signal to the controlled traffic light.

Apparatus and method for controlling traffic light

Growing community of inventors

Daejeon, South Korea

Hyoungsoo Lim