公开(公告)号：CA2564236C

公开(公告)日：2013-04-02

申请号：CA2564236

申请日：2004-12-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JAE-HYUN ,  LEE YONG-TAE ,  KIM HEUNG-MOOK ,  EUM HO-MIN ,  PARK SUNG-IK ,  KIM SEUNG-WON ,  LEE SOO-IN

IPC: H04N7/015 ,  H04B7/155 ,  H04L25/03 ,  H04L25/24 ,  H04N5/21 ,  H04N5/38

Abstract: Provided are an on-channel repeater and a method thereof. The repeater receives signals on one channel and distributes the signals on the same channel by converting RF signals from a main transmitter into baseband signals; equalizing them in a high-performance equalizer; adding a repeater identifier to them; modulating the baseband signals with the repeater identifier into RF signals. The repeater includes: a receiver for receiving RF signals; a demodulator for demodulating the RF signals into baseband signals; an equalizer for equalizing the baseband signals; an adder for adding a repeater identifier to the baseband signals; a modulator for modulating the baseband signals with the repeater identifier added in the adder into RF signals; and a transmitter for transmitting the RF signals modulated in the modulator. The technology of the present invention is used to form an on-channel repeating network in an arbitrary transmission system including a digital television broadcasting system.

公开(公告)号：CA2561185C

公开(公告)日：2012-05-29

申请号：CA2561185

申请日：2005-04-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE JAE-YOUNG ,  JI KUM-RAN ,  KIM SUNG-HOON ,  KIM SEUNG-WON ,  LEE SOO-IN ,  AHN CHIETEUK

IPC: H04N7/015

Abstract: Provided are a Vestigial Side Band (VSB) Digital Television (DTV) transmitter and receiver based on the Advanced Television System Committee (ATSC) A/53, and a method thereof. The present invention provides 8-VSB DTV transmitter and receiver that can improve reception performance of the receiver by transmitting and receiving robust data mixed with P-2VSB, E-4VSB, and/or E-8VSB. The DTV transmitter includes an input means for receiving a digital video data stream including normal data and robust data; an encoding means for coding the digital video data stream into data symbols; and a transmitting means for modulating and transmitting an output signal of the encoding means, wherein the encoding means performs trellis coding on the robust data by sequentially applying a plurality of trellis coding methods.

公开(公告)号：DE60334504D1

公开(公告)日：2010-11-18

申请号：DE60334504

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YUN KUG-JIN ,  AHN CHUNG-HYUN ,  KANG HOON-JONG ,  HUR NAM-HO ,  CHO SUK-HEE ,  LEE SOO-IN

IPC: H04L12/56 ,  A63J5/00 ,  A63J17/00 ,  A63J25/00 ,  A63J99/00 ,  H04N7/52

公开(公告)号：CA2668058A1

公开(公告)日：2008-05-08

申请号：CA2668058

申请日：2007-10-12

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LIM JONG-SOO ,  PARK SUNG-IK ,  LEE SOO-IN ,  LEE JAE-YOUNG ,  KIM HEUNG-MOOK ,  EUM HO-MIN ,  SEO JAE-HYUN

IPC: H04B7/14

Abstract: Provided is an apparatus and method for analyzing identification (ID) sig nals by converting radio frequency (RF) signals which are transmitted with a n ID signal added thereto by a transmitting part, e.g., a plurality of trans mitters or repeaters, into signals of a desired band; creating ID signals th at are identical to the ID signals added to the RF signals; calculating corr elation values between the converted signals and the created ID signals base d on partial correlation; and extracting channel profile of multi-path signa ls caused by a channel between the transmitting part and the ID signal analy zing apparatus from the correlation value. The technology of the present res earch is applied to broadcasting and communication.

公开(公告)号：MXPA06013060A

公开(公告)日：2007-02-14

申请号：MXPA06013060

申请日：2004-12-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO JAE-HYUN ,  PARK SUNG-IK ,  LEE YONG-TAE ,  KIM HEUNG-MOOK ,  EUM HO-MIN ,  KIM SEUNG-WON ,  LEE SOO-IN

IPC: H04L27/00 ,  H04B7/155 ,  H04N7/015 ,  H04L25/03 ,  H04L25/24 ,  H04N5/21 ,  H04N5/38 ,  H04N7/00

Abstract: Se proporcionan un repetidor de canal activo y un metodo del mismo. El repetidor recibe las senales en un canal y distribuye las senales en el mismo canal mediante convertir las senales RF desde un transmisor principal en las senales de banda base; ecualizandolas en un ecualizador de alto rendimiento, agregando un identificador del repetidor a ellas, modulando las senales de banda base con el identificador del repetidor en las senales RF. El repetidor incluye: un receptor para recibir las senales RF; un demodulador para demodular las senales RF en las senales de banda base, un ecualizador para ecualizar las senales de banda base; un agregador para agregar un identificador del repetidor a las senales de banda base, un modulador para modular las senales de banda base con el identificador del repetidor agregado en el agregador en base senales RF y un transmisor para transmitir las senales RF moduladas en el modulador. La tecnologia de la presente invencion se usa para formar una red de repeticion de canal activo en un sistema de transmision arbitrario incluyendo un sistema de transmision de television digital.

公开(公告)号：CA2561183A1

公开(公告)日：2006-12-01

申请号：CA2561183

申请日：2005-04-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE SOO-IN ,  AHN CHIETEUK ,  JI KUM-RAN ,  KIM SUNG-HOON ,  LEE JAE-YOUNG ,  KIM SEUNG-WON

IPC: H04N7/015

Abstract: Provided are a Vestigial Side Band (VSB) Digital Television (DTV) transmitte r and receiver based on the Advanced Television System Committee (ATSC) A/53, and a method thereof. The present invention provides 8-VSB DTV transmitter a nd receiver that can improve reception performance of the receiver by transmitting and double streams formed of normal data and robust data withou t increasing an average power level, regardless of the ratio of the normal dat a and robust data, by including an encoding unit for performing 16-state trell is coding on the robust data when a data stream includes robust data, and a method thereof.

公开(公告)号：CA2597706A1

公开(公告)日：2006-08-24

申请号：CA2597706

申请日：2006-02-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： PARK HYUN-CHEOL ,  KIM JAE-BUM ,  LEE SOO-IN ,  AHN CHIE-TEUK ,  JI KUM-RAN ,  KIM SUNG-HOON ,  LEE JAE-YOUNG ,  KIM SEUNG-WON

IPC: H04N7/015 ,  H04N19/89

Abstract: Provided is an error correcting encoder and, more particularly, to an error correcting encoder used for an improved transmission method of the Advanced Television System Committee (ATSC), and a method thereof. The error correcting encoder for digital television broadcasting, which is suggested in the present research, includes a robust encoder for encoding a one-bit input into robust encoded data; a pre-coding block for receiving the robust encoded data and performing pre-coding to thereby produce a pre-coded signal; and a trellis encoding block for performing trellis encoding on the robust encoded data and the pre-coded signal.

公开(公告)号：CA2561185A1

公开(公告)日：2006-01-12

申请号：CA2561185

申请日：2005-04-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SUNG-HOON ,  LEE SOO-IN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  JI KUM-RAN ,  LEE JAE-YOUNG

IPC: H04N7/015

Abstract: Provided are a Vestigial Side Band (VSB) Digital Television (DTV) transmitte r and receiver based on the Advanced Television System Committee (ATSC) A/53, and a method thereof. The present invention provides 8-VSB DTV transmitter a nd receiver that can improve reception performance of the receiver by transmitting and receiving robust data mixed with P-2VSB, E-4 VSB, and/or E- 8 VSB. The DTV transmitter includes an input means for receiving a digital vid eo data stream including normal data and robust data; an encoding means for coding the digital video data stream into data symbols; and a transmitting means for modulating and transmitting an output signal of the encoding means , wherein the encoding means performs trellis coding on the robust data by mixing and using a plurality of methods.

公开(公告)号：AU2003289587A1

公开(公告)日：2005-06-08

申请号：AU2003289587

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE JIN-HWAN ,  BAE BYUNG-JUN ,  CHO SAM-MO ,  KIM GEON ,  LEE YONG-HOON ,  HAHM YOUNG-KWON ,  LEE SOO-IN

IPC: H04H20/57 ,  H04H20/95 ,  H04H60/07 ,  H04N7/24 ,  H04N7/26 ,  H04N7/50 ,  H04H1/00

公开(公告)号：AU2003289585A1

公开(公告)日：2005-06-06

申请号：AU2003289585

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHO SUK-HEE ,  LEE SOO-IN ,  YUN KUG-JIN ,  AHN CHUNG-HYUN ,  KANG HOON-JONG ,  HUR NAM-HO

IPC: H04L12/56 ,  A63J5/00 ,  A63J17/00 ,  A63J25/00 ,  A63J99/00 ,  H04N7/52

Abstract: Provided is a five sensory data synchronizing and transmitting apparatus and method, and an actual-feeling multimedia data providing system and method using the same. The five sensory data synchronizing and transmitting apparatus and method forms packets by describing vibration, an odor and a taste expressed in video/audio based on touch, odor and taste data descriptors and synchronizes the touch/odor/taste packets with video/audio packets on a frame basis; and then, the actual-feeling multimedia data providing system and method demultiplexes the received packets transmitted from the five sensory data synchronizing and transmitting apparatus into video data, audio data, touch data, odor data and taste data and transmits them to corresponding devices to thereby provide a user with an actual-feeling multimedia service.