公开(公告)号：CA2616067A1

公开(公告)日：2007-01-25

申请号：CA2616067

申请日：2006-07-19

Applicant: KOREA ELECTRONICS TELECOMM

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

IPC: H03M13/23

Abstract: Provided are a method of estimating an encoder for dual stream transmission, and an encoder using the same. The method includes the steps of : a) setting up the number of memories required for an encoder, a free distance condition for robust data, and a free distance condition for mixed stream of robust data and normal data; b) obtaining 1/2 rate encoder combinations that sustain backward compatibility with a typical trellis encoder; c) obtaining encoder combinations H that satisfy the free distance condition for the robust data and the free distance condition for the mixed stream from the 1/2 rate encoder combinations; d) obtaining relations between memories and input/output signals, which satisfy the encoder combinations H; and e) configuring an encoder according to the obtained relation between the memories and the input/output signals.

公开(公告)号：AU2003285803A1

公开(公告)日：2004-07-22

申请号：AU2003285803

申请日：2003-12-24

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： HAHM YOUNG-KWON ,  AHN CHIETEUK ,  CHOI YUNJUNG ,  CHO SUK-HEE ,  YUN KUG-JIN

IPC: G06T15/00 ,  G06F17/30 ,  G06K9/00

Abstract: Provided is an apparatus and method for describing three-dimensional, image data, an apparatus and method for retrieving three-dimensional image data, and a computer-readable recording media for recording the programs. An object of the present invention is to provide an apparatus and method for describing three-dimensional image data, and a computer-readable recording-medium that implements the method. Another object of the present invention is to provide an apparatus and method for retrieving three-dimensional image data suitable for various application areas and display apparatuses, and a computer-readable recording-medium that implements the method. The image description apparatus includes: a descriptor database for storing descriptors describing characteristics of the three-dimensional image data; a descriptor adding unit for reading in a descriptor describing the characteristics of the three-dimensional image data and adding it to the three-dimensional image data; and a registration unit for registering the three-dimensional image data with the descriptor in a three-dimensional image data database.

公开(公告)号：AU2003272111A1

公开(公告)日：2004-07-22

申请号：AU2003272111

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：AU2003269550A1

公开(公告)日：2004-05-04

申请号：AU2003269550

申请日：2003-10-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： JANG DAE YOUNG ,  KANG KYEONG OK ,  KIM JIN WOONG ,  AHN CHIETEUK ,  SEO JEONG IL

IPC: H04S1/00 ,  H04S7/00

公开(公告)号：AU2002356452A1

公开(公告)日：2003-07-15

申请号：AU2002356452

申请日：2002-11-13

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHOI YUNJUNG ,  CHO SUK-HEE ,  YUN KUG JIN ,  LEE JINHWAN ,  AHN CHIETEUK

IPC: H04N7/58 ,  H04N13/00 ,  H04N15/00 ,  H04N21/2343 ,  H04N21/258 ,  H04N21/4402

Abstract: Provided is a stereoscopic video encoding and/or decoding apparatus that supports multi-display modes, the encoding/decoding method thereof and computer-readable recording medium for recording a program that implements the encoding/decoding method. The encoding apparatus of this research incorporates: a field separating means for separating right and left-eye input images into an odd field of the left-eye image (LO), even field of the left-eye image (LE), odd-numbered field (RO) of the right-eye image, and even-numbered field (RE) of the right-eye image; an encoding means for encoding the fields separated in the field separating means by performing motion and disparity compensation; and a multiplexing means for multiplexing the essential fields among the fields received from the encoding means, based on the user display information.

公开(公告)号：AU2002366143A1

公开(公告)日：2003-06-10

申请号：AU2002366143

申请日：2002-11-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YUN KUG-JIN ,  CHO SUK-HEE ,  CHOI YUNJUNG ,  LEE JINHWAN ,  AHN CHIETEUK

IPC: H03M7/30 ,  H04N7/08 ,  H04N7/081 ,  H04N13/00 ,  H04N13/04 ,  H04N19/00 ,  H04N19/102 ,  H04N19/134 ,  H04N19/162 ,  H04N19/20 ,  H04N19/423 ,  H04N19/597 ,  H04N19/70 ,  H04N19/85

Abstract: An MPEG system for processing stereoscopic/multiview three-dimensional video comprises a compressor (10) for processing input stereoscopic/multiview three- dimensional video data to generate field-based elementary streams of multiple channels, and integrating the multi-channel elementary streams into a single-channel elementary stream, a packetizer (20) for receiving the sinlge-channel elementary stream from the compressor (10) per access unit and packetizing the received single-channel elementary streams into a packetized stream, and a transmitter (30) for multiplexing the packetized stream into a multipixed stream for transmitting or storing the same, wherein the multiplexed stream includes viewpoint information including the number of viewpoint that the packetized stream provides.

公开(公告)号：CA2579502C

公开(公告)日：2014-05-27

申请号：CA2579502

申请日：2005-09-15

Applicant: KOREA ELECTRONICS TELECOMM

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

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 1/4 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 1/4 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：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：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：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.