Korea Electronics Technology Institute

Ki Won Kwon

Kyung Won Park

Jung Wook Wee

Won Gi Jeon

Yong Hwan Kim

Dong Sun Kim

Jeong Wook Seo

Jong Ho Paik

Byoung Chul Song

The described technology generally relates to a scalable high efficiency video coding (SHVC)-based ultra-high definition (UHD) image data transmission and reception system. The SHVC-based UHD image data transmission and reception system includes an image data collector configured to collect various kinds of image data and additional data of the image data. The system also includes an image data coder configured to code the image data and the additional data by using an HEVC-based scalable video coding scheme, and an image data transmitter configured to transmit at least one of a portion of the coded image data and the coded additional data to a terminal via a communication network.

SHVC-based UHD image data transmission and reception system

A method for transmitting device indicator data in a network-based AV system is provided. The method for transmitting the device indicator data records device indicator data on a data unit which is used in an AV transmission protocol, and transmits the data unit. Accordingly, the indicator data which changes in real time in a network AV device can be rapidly transmitted to a management platform.

Method for transmitting device indicator data in network-based AV system

The present invention relates to a method and apparatus for detecting STBC-OFDM signals in time-variant channels. The method includes a step of demodulating STBC-OFDM modulation signals into OFDM reception symbols using Fast Fourier Transform (FFT); a step of estimating a frequency response for each sub-channel; an STBC decoding step of calculating decision variables determining the A transmit data symbols that are transmitted during the B OFDM symbol periods for each sub-channel; and a step of determining the transmit data symbols based on the decision variables calculated at the STBC decoding step. In this case, the decision variables are calculated using a linear equation that allows a squared Euclidean distance from OFDM reception symbols, which are demodulated during the B symbol periods, to have a local minimum for each decision variable when the STBC encoding and the frequency responses estimated during the B OFDM symbol periods are applied.

Method and apparatus for detecting STBC-OFDM signals in time-variant channels

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Seongnam-si, South Korea

Ki Won Kwon