公开(公告)号：WO2008069392A2

公开(公告)日：2008-06-12

申请号：PCT/KR2007003479

申请日：2007-07-18

Applicant: KOREA ELECTRONICS TELECOMM ,  PARK GI-YOON ,  CHOI JIN-KYU ,  KIM TAE-JOONG ,  PARK HYEONG-JUN

Inventor： PARK GI-YOON ,  CHOI JIN-KYU ,  KIM TAE-JOONG ,  PARK HYEONG-JUN

IPC: H04B1/10 ,  H04L1/20 ,  H04L27/26

CPC classification number: H04L25/0228 ,  H04L1/20 ,  H04L27/2647

Abstract: The present invention relates to a method for estimating a noise variance (i.e., necessary information to estimate transmitted symbols from received signals) in a receiver. When a first symbol vector on a frequency domain is received, a windowing controller sets all symbols except pilot symbols of the first symbol vector to zero to make a second symbol vector. An inverse discrete Fourier transformer transforms the second symbol vector on the frequency domain into a sample vector on the time domain, a noise sample extractor extracts noise samples of a block in which much reduced signals appear from the sample vector on the time domain, and a variance calculator calculates a variance of the extracted noise samples.

Abstract translation: 本发明涉及一种用于在接收机中估计噪声方差（即，从接收信号估计发射符号的必要信息）的方法。 当接收到频域上的第一符号向量时，窗口控制器将除第一符号向量的导频符号之外的所有符号设置为零以形成第二符号向量。 逆离散傅立叶变换器将频域上的第二符号向量变换成时域上的采样向量，噪声样本提取器从时域上的样本向量中提取出大量减少信号出现的块的噪声样本， 方差计算器计算提取的噪声样本的方差。

公开(公告)号：EP2080291A4

公开(公告)日：2014-07-02

申请号：EP07833766

申请日：2007-10-31

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD

Inventor： KIM TAE-JOONG ,  PARK GI-YOON ,  PARK OK-SUN ,  LEE JAE-KYUNG ,  PARK HYEONG-JUN ,  BANG SEUNG-CHAN

IPC: H04B7/26

CPC classification number: H04B7/2637 ,  H04B7/12

Abstract: Provided are a method and apparatus for transmitting control information and packet data. The method includes generating control channels which transmit the control information; generating control indication channel which indicates whether the control channels are transmitted or not; generating data channels in order to transmit the packet data based on the control information; multiplexing the control channels, the control indication channels, and the data channels; and transmitting the control channels, the control indication channels, and the data channels. According to the present invention, when control information and packet data are transmitted in downlink, by transmitting additional information indicating whether control channels are transmitted or not, resources not actually allocated to control channels can be allocated to data channel and the mobile station can receive data channel using the control indication information.

公开(公告)号：EP1776832A4

公开(公告)日：2009-08-26

申请号：EP04808668

申请日：2004-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YUN KUG-JIN ,  CHO SUK-HEE ,  SEO JEONG-IL ,  PARK GI-YOON ,  UM GI-MUN ,  CHANG EUN-YOUNG ,  KANG KYEONGOK ,  AHN CHUNG-HYUN ,  LEE SOO-IN

IPC: H04N7/24 ,  H04N7/26 ,  H04N13/00

CPC classification number: H04N13/0059 ,  H04H20/28 ,  H04H20/46 ,  H04H20/72 ,  H04H20/89 ,  H04H40/36 ,  H04N13/0048 ,  H04N13/0051 ,  H04N19/25 ,  H04N19/597 ,  H04N21/23412 ,  H04N21/234318 ,  H04N21/235 ,  H04N21/236 ,  H04N21/435 ,  H04N21/44012 ,  H04N21/8451

Abstract: Provide is a 3-dimensional Digital Multimedia Broadcasting (3D DMB) system. The present invention can provide a 3D DMB system providing a more realistic 3D Audio/Video (AV) service to a user, while maintaining comparability with a conventional DMB system, by processing a binocular 3D image and 3D sound based on a conventional system structure. The 3D DMB system includes: a video encoder for receiving and encoding a video signal of a binocular 3D image; an audio encoder for receiving and encoding an audio signal of a 3D sound; a packetizor for packetizing the encoded video and audio signals into an Sync Layer (SL) packet; and a multiplexer for transforming and multiplexing the SL packet packetized by the packetizer. A 3D DMB receiving system includes: a demultiplexer for demultiplexing a stream including binocular 3D image information and 3D sound information; a depacketizer for depacketizing the SL packet and outputting a decoding stream of an 3D video signal and a 3D sound audio signal; a video decoder for decoding a encoding stream for a video signal of the binocular 3D image; an audio decoder for decoding a encoding stream for the 3D sound audio signal; and a scene restorer for forming and outputting a 2D AV or 3D AV scene by using a video/3D additional video and an audio/3D additional audio signal which are received from the video decoder and the audio decoder.

公开(公告)号：EP1774656A4

公开(公告)日：2011-08-31

申请号：EP05774408

申请日：2005-07-09

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JEONG-IL ,  PARK GI-YOON ,  JANG DAE-YOUNG ,  KANG KYEONG-OK ,  HONG JIN-WOO

IPC: H03M7/30 ,  H04N7/24

CPC classification number: H04N19/20 ,  H04N19/25 ,  H04N19/44 ,  H04N21/23412 ,  H04N21/44012 ,  H04N21/8106