Electronics and Telecommunications Research Institute

Hun Hee Lee

Namho Hur

Hyoungsoo Lim

Yun Jeong Song

Joungil Yun

Young Su Kim

Kyu Tae Yang

Byungjun Bae

Nam Ho Hur

Hyoung Soo Lim

Myung Sun Beak

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

Disclosed is a receiver including: a partial filter generating unit selecting a signal as large as a predetermined magnitude among sampled signals and extracting a filter coefficient for the selected signal magnitude to perform QR resolution for the filter coefficient; a partial ML setting unit determining the lengths and the number of candidate symbol combinations of a signal to be detected and generating a candidate ML symbol combination based on the determined lengths and number of candidate symbol combinations; a signal detecting unit detecting residual symbols in a predetermined part of the sampled signal based on the generated candidate ML symbol combination; and a final signal selecting unit choosing a candidate symbol closest to the sampled signal among the detected candidate symbols as a finally detected signal.

System for detecting signal based on partial maximum likelihood and method thereof

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.

Growing community of inventors

Daejeon, South Korea

Hun Hee Lee