公开(公告)号：AT440447T

公开(公告)日：2009-09-15

申请号：AT03721110

申请日：2003-04-24

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE BONG-HO ,  LEE HYUN ,  LEE SOO-IN ,  AHN CHIETEUK

IPC: G10L13/04 ,  G10L15/26 ,  H04N5/445

Abstract: Disclosed is a system for providing an electronic program guide and a method of providing the same, the electronic program guide (EPG) being about a plurality of programs supplied through a digital broadcasting system, including the steps of receiving service information transmitted from the digital broadcasting system, and extracting the EPG information from the service information to store the EPG information; analyzing a user's request and extracting EPG information that meets the user's request from the stored EPG information to produce tailored EPG information; converting the tailored EPG information into speech EPG information; and reproducing the speech EPG information as speech to provide users with the EPG information.

公开(公告)号：CA2614866A1

公开(公告)日：2007-01-18

申请号：CA2614866

申请日：2006-07-11

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE HO-KYOUNG ,  KIM SUNG-HOON ,  AHN CHIETEUK ,  LEE SOO-IN ,  LEE JAE-YOUNG ,  KIM CHANG-JOONG ,  KIM SEUNG-WON

IPC: H04N7/24

Abstract: Provided is a method for searching for an optimal coder suitable to a dual stream transmission method of a DTV transceiving apparatus, and an encoder and a decoder employing the optimal coder searching method. The optimal coder searching method includes the steps of: a) determining a mixed pattern of normal stream and robust stream; b) determining a trellis structure of the robust stream which is applied to the mixed pattern based on how coders are connected; c) forming a dual stream trellis by mixing a trellis of the normal stream, which is a normal stream trellis, and a trellis of the robust stream, which is a robust stream trellis; d) computing a free distance at departing points of the dual stream trellis structure based on a dual stream free distance computation termination condition; and e) determining the optimal coder based on the free distance.

公开(公告)号：CA2579502A1

公开(公告)日：2006-03-23

申请号：CA2579502

申请日：2005-09-15

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N7/12 ,  H04N5/00 ,  H04N7/24

Abstract: Provided is a Vestigial Side Band Digital Television (DTV) transmitter/receiver based on Advanced Television System Committee A/53. The invention provides DTV transmitter/receiver having a dual stream structure through generation of robust data which has a transmission rate a fourth as fast as that of normal data, and a method thereof. The DTV transmitter includes: input means for receiving digital video data stream including normal and robust data; encoding means for performing ¼ rate coding on the digital video data stream so that one bit can be transmitted through two symbols; and transmitting means for modulating/transmitting output signals of the encoding means. This invention can reduce SNR and satisfy TOV of robust data by performing additional FEC on robust data, transmitting/receiving ¼ rate coded robust data, which are capable of transmitting one-bit data for two symbols, and improving decoding ability of an equalizer and a trellis decoder of a DTV receiver.

公开(公告)号：AU2003269524A1

公开(公告)日：2004-05-13

申请号：AU2003269524

申请日：2003-10-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： AHN CHIETEUK ,  HAN KYU SEO ,  CHUN BYUNG TAE ,  LEE JAE YEON ,  CHUNG YUN KOO

IPC: H04N7/32 ,  H04N7/26 ,  H04N7/36

Abstract: In a method for motion estimation using adaptive patterns in a video sequence compression system, an initial search pattern located at a center of a search window in a block of a video frame is determined. A location of a minimum block distortion measure (BDM) is searched in the initial search pattern. A horizontal search pattern for functioning on the search window is determined in the horizontal direction to search a location of a minimum BDM in the horizontal search pattern. A vertical search pattern for operating on the search window is determined in the vertical direction to search a location of a minimum BDM in the vertical search pattern. The location of the minimum BDM in each pattern is designated to be a motion vector. A search pattern to be used in a subsequent searching stage is determined based on the location of the minimum BDM in each pattern.

公开(公告)号：AU2003224465A1

公开(公告)日：2004-05-04

申请号：AU2003224465

申请日：2003-04-24

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： AHN CHIETEUK ,  LEE BONG-HO ,  LEE HYUN ,  LEE SOO-IN

IPC: G10L13/04 ,  G10L15/26 ,  H04N5/445

Abstract: Disclosed is a system for providing an electronic program guide and a method of providing the same, the electronic program guide (EPG) being about a plurality of programs supplied through a digital broadcasting system, including the steps of receiving service information transmitted from the digital broadcasting system, and extracting the EPG information from the service information to store the EPG information; analyzing a user's request and extracting EPG information that meets the user's request from the stored EPG information to produce tailored EPG information; converting the tailored EPG information into speech EPG information; and reproducing the speech EPG information as speech to provide users with the EPG information.

公开(公告)号：AU2002356458A1

公开(公告)日：2003-06-10

申请号：AU2002356458

申请日：2002-11-26

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： AHN CHIETEUK ,  CHEONG WON-SIK ,  KIM KYUHEON ,  PARK GWANG HOON ,  LEE YOON JIN ,  KIM JINWOONG

IPC: H04N19/102 ,  H04N7/12 ,  H04N7/24 ,  H04N19/167 ,  H04N19/172 ,  H04N19/189 ,  H04N19/196 ,  H04N19/34 ,  H04N19/503 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: Provided are intelligent water ring scan apparatus and method thereof, image encoding/decoding apparatus using the water ring scanning and method thereof, and a computer-readable recording medium for recording a program that implements the methods. The apparatus or method of this research selectively improves the image quality of a particular image part that needs to be encoded with priority by transmitting the image data of the particular image part suitably for a human visual system so as to provide a visually improved image. The encoding apparatus of this research differentiates the amount of image data depending on the significance of a certain image part to process the image in various qualities suitably for the human visual system. The methods of this research can be applied to an image encoding/decoding process.

公开(公告)号：CA2512670C

公开(公告)日：2012-03-20

申请号：CA2512670

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SUNG-HOON ,  JI KUM-RAN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  SHIM YONG-HOON ,  KIM DAE-JIN ,  OH YOUNG-HO

IPC: H04N7/015 ,  H04N7/173 ,  C07C67/52 ,  C07C67/54 ,  C07C69/82 ,  G01S1/02 ,  G01S5/02 ,  G01S5/06 ,  G01S5/12 ,  G01S19/27 ,  G02B26/10 ,  G03B5/00 ,  G03B7/093 ,  G03B11/00 ,  G03B17/02 ,  G04G7/02 ,  G06F1/16 ,  G06F3/00 ,  G06F9/46 ,  G06F11/00 ,  G06F11/10 ,  G06F12/10 ,  G06F13/00 ,  G06F13/12 ,  G06F13/36 ,  G06F13/362 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  G06F21/24 ,  G06K9/00 ,  G06K9/62 ,  G06K17/00 ,  G06K19/00 ,  G06T9/00 ,  G08C19/16 ,  G09C1/00 ,  G09G3/02 ,  G10L19/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B20/22 ,  H01L27/00 ,  H01L27/146 ,  H01Q1/24 ,  H01Q21/24 ,  H03L7/091 ,  H03M13/03 ,  H03M13/13 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H04B1/16 ,  H04B1/707 ,  H04B7/005 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04B14/00 ,  H04B17/00 ,  H04H60/72 ,  H04J3/06 ,  H04J13/00 ,  H04J13/16 ,  H04L1/00 ,  H04L1/18 ,  H04L7/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32 ,  H04L12/08 ,  H04L12/16 ,  H04L12/28 ,  H04L12/417 ,  H04L12/46 ,  H04L12/54 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/497 ,  H04L27/02 ,  H04L27/10 ,  H04L27/156 ,  H04L27/18 ,  H04L27/34 ,  H04L47/2416 ,  H04L69/40 ,  H04M1/00 ,  H04M1/66 ,  H04M1/715 ,  H04M1/73 ,  H04M3/00 ,  H04M3/16 ,  H04M3/22 ,  H04M3/42 ,  H04M11/00 ,  H04M11/06 ,  H04N1/028 ,  H04N1/031 ,  H04N1/191 ,  H04N5/04 ,  H04N5/073 ,  H04N5/12 ,  H04N5/225 ,  H04N5/232 ,  H04N5/38 ,  H04N5/44 ,  H04N5/46 ,  H04N5/60 ,  H04N5/64 ,  H04N5/66 ,  H04N5/74 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/907 ,  H04N5/91 ,  H04N5/92 ,  H04N7/01 ,  H04N7/08 ,  H04N7/16 ,  H04N7/24 ,  H04N7/26 ,  H04N7/36 ,  H04N7/52 ,  H04N9/31 ,  H04N9/64 ,  H04N9/79 ,  H04N9/804 ,  H04N17/00 ,  H04N21/41 ,  H04N21/414 ,  H04N101/00 ,  H04Q3/00 ,  H04R3/12 ,  H04W4/06 ,  H04W4/10 ,  H04W4/12 ,  H04W4/14 ,  H04W4/16 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W8/16 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W24/00 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/04 ,  H04W28/08 ,  H04W28/16 ,  H04W28/22 ,  H04W36/02 ,  H04W36/04 ,  H04W36/18 ,  H04W36/30 ,  H04W40/22 ,  H04W48/06 ,  H04W48/08 ,  H04W48/14 ,  H04W48/16 ,  H04W52/02 ,  H04W52/24 ,  H04W56/00 ,  H04W60/00 ,  H04W64/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04 ,  H04W76/06 ,  H04W80/06 ,  H04W84/04 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/12 ,  H04W88/18 ,  H04W92/12

Abstract: The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing rate of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to be mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5}.

公开(公告)号：DE10393979B4

公开(公告)日：2010-03-11

申请号：DE10393979

申请日：2003-10-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHO SAMMO ,  LEE HYUN ,  LEE SOO IN ,  AHN CHIETEUK

IPC: H04N7/06 ,  H04H20/00 ,  H04H20/28 ,  H04H20/42 ,  H04J1/00 ,  H04N5/00 ,  H04N7/58

Abstract: An apparatus for transmitting data in a digital broadcasting system is disclosed. The apparatus includes: a source encoding unit for encoding data to be transmitted and generating source-coded data; a capacity managing unit for dividing the source-coded data into divided data for a plurality of channels in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of available data capacities of the multiple channels can accommodate the source-coded data, and adding header information to the divided data; a channel encoding unit for encoding the divided data according to channel environment and generating channel-coded data; and a transmitting unit for multiplexing, modulating and transmitting the channel-coded data through multiple frequency bands and multiple broadcasting sites.

公开(公告)号：MXPA06011267A

公开(公告)日：2007-01-26

申请号：MXPA06011267

申请日：2005-04-01

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N7/015 ,  H04N11/24

Abstract: Se proporcionan un transmisor y un receptor de Television Digital (DTV) de Banda Lateral Residual (VSB) basados en el A/53 del Comite de Sistema de Television Avanzado (ATSC) y un metodo para los mismos. La presente invencion proporciona un transmisor y un receptor DTV de 8-VSB que puede mejorar el funcionamiento de la recepcion del receptor mediante transmitir y recibir flujos dobles formados de datos normales y datos robustos sin incrementar un nivel de energia promedio, sin importar la proporcion de los datos normales y los datos robustos, mediante incluir una unidad de codificacion para realizar la codificacion trellis de 16 estados codificando los datos robustos cuando un flujo de datos incluye datos y un metodo para los mismos.

公开(公告)号：CA2561182A1

公开(公告)日：2006-01-12

申请号：CA2561182

申请日：2005-04-01

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H04N7/12

Abstract: Provided are a Vestigial Side Band (VSB) digital television (DTV) receiver based on is A/53 of the Advanced Television System Committee (ATSC) that can secure backward compatibility of a low-ranked DTV receiver by using parity bytes added to robust data for error correction and obtain RS coding gain fr om the robust data, and a method thereof. The DTV receiver includes: a receivin g unit for receiving a transmission signal including general data and robust data and converting the transmission signal into a base-band signal; an equalizer for determining a symbol level of the transmission signal; a trell is decoder for performing trellis decoding on a symbol of the determined level; a nonsystematic Reed Solomon (NRS) decoder for performing NRS decoding on the trellis-decoded robust data and correcting an error; and a restoring unit fo r restoring a digital video data stream with respect to the trellis-decoded general data and the NRS-decoded robust data.