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公开(公告)号：DE10394289T5
公开(公告)日：2007-07-05
申请号：DE10394289
申请日：2003-12-30
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BAE BYUNG-JUN , LEE JIN-HWAN , LEE YONG-HOON , CHO SAM-MO , JEONG YOUNG-HO , HAHM YOUNG-KWON , LEE SOO-IN
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公开(公告)号：MXPA06008226A
公开(公告)日：2007-04-16
申请号：MXPA06008226
申请日：2004-12-31
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： LEE YONG-TAE , KIM SEUNG-WON , EUM HO-MIN , SEO JAE-HYUN , LEE SOO-IN , PARK SUNG-IK , KIM HEUNG-MOOK
Abstract: Se proporcionan un aparato y metodo de modulacion de un repetidor en canal. Un objeto de la presente invencion es proporcionar un aparato de modulacion de un repetidor en canal para reducir el retardo de tiempo al configurar y muestrear ascendentemente una senal de banda base, filtrar la senal de banda base muestreada ascendentemente con un filtro de Equi-Ondulacion (ER) o en un metodo de ventana, y convertir la senal de banda base filtrada en una senal de RF. El aparato de modulacion incluye: una unidad de configuracion de senal de banda base para configurar una senal de banda base al configurar un campo de entrada y una senal de sincronizacion de segmento; una unidad de adicion de piloto para agregar una senal piloto a la senal de banda base; una unidad de filtracion para filtrar la senal de banda base con la senal piloto; y una unidad de conversion ascendente de RF para convertir ascendentemente la senal filtrada en una senal de RF. La presente invencion se utiliza para formar una red de repeticion en canal en un sistema de transmision que incluye un sistema de difusion de TV digital.
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73.发明专利
公开(公告)号：MXPA05012578A
公开(公告)日：2007-03-08
申请号：MXPA05012578
申请日：2003-12-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM SEUNG-WON , PARK SUNG-IK , LEE YONG-TAE , EUM HO-MIN , SEO JAE-HYUN , LEE SOO-IN
Abstract: Se describe un repetidor y metodo para un servicio de servicio de difusion de TV digital terrestre de ATSC. El repetidor de canal activo incluye: una unidad de recepcion para recibir una senal de difusion de Radiofrecuencia (FR) desde un trasmisor principal; una unidad de conversion de enlace descendente de frecuencia para convertir la senal de difusion de RF recibida en una senal de frecuencia intermedia (IF); una unidad de desmodulacion para convertir la senal de IF convertida en una senal de banda base; una unidad de ecualizacion para remover una cierta senal innecesaria generada a partir de la senal de banda base convertida; una unidad de modulacion para convertir la senal de banda base en una senal de IF; una unidad de conversion de enlace ascendente de frecuencia para convertir la senal de IF en una senal de difusion de RF; una unidad de amplificacion de alta potencia para amplificar y repetir la senal de difusion de RF convertida; una unidad de transmision para transmitir la senal de difusion de RF producida de la unidad de amplificacion de alta potencia; y una unidad de sincronizacion de senal para generar la primera frecuencia de referencia, y generar la segunda frecuencia de referencia en la base de la primera frecuencia de referencia de manera que la senal de transmision/recepcion se sincronizan por frecuencia y fase.
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74.发明专利
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
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.
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公开(公告)号：BRPI0416017A
公开(公告)日：2007-01-02
申请号：BRPI0416017
申请日：2004-10-29
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： PARK SUNG-IK , LEE YONG-TAE , SEO JAE-HYUN , KIM SEUNG-WON , LEE SOO-IN
Abstract: Provided is an on-channel repeater and method thereof. The on-channel repeating apparatus includes: a receiving unit for receiving a Radio Frequency (RF) broadcast signal; a demodulating unit for converting the RF signal into a baseband signal; an equalizing unit for equalizing the baseband signal to generate an equalized baseband signal; a modulating unit for converting the equalized baseband signal into an RF signal; and a transmitting unit for transmitting the RF signal.
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Patent Agency Ranking76.发明专利
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.
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公开(公告)号：CA2564236A1
公开(公告)日：2005-11-17
申请号：CA2564236
申请日：2004-12-31
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： EUM HO-MIN , SEO JAE-HYUN , LEE YONG-TAE , KIM HEUNG-MOOK , PARK SUNG-IK , LEE SOO-IN , KIM SEUNG-WON
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.
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78.发明专利
公开(公告)号：AU2003289588A1
公开(公告)日：2005-06-29
申请号：AU2003289588
申请日：2003-12-30
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： YUN KUG-JIN , CHO SUK-HEE , AHN CHUNG-HYUN , LEE SOO-IN
IPC: H04N7/24
Abstract: The present invention relates to three-dimensional video processing apparatus and method using MPEG-4 object descriptor information and structures. The three-dimensional video processing apparatus and method that can support a three-dimensional video service smoothly to thereby provide a sense of reality and a cubic effect in an MPEG-4-based system by suggesting a three-dimensional video object descriptor structure and providing to a client an object descriptor, which includes information on kind of three-dimensional video, number of viewpoints, number of media streams and a plurality of display methods; and a method thereof.
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公开(公告)号：AU2003288780A1
公开(公告)日：2005-03-10
申请号：AU2003288780
申请日：2003-12-30
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BAE BYUNG-JUN , LEE JIN-HWAN , LEE YONG-HOON , CHO SAM-MO , JEONG YOUNG-HO , HAHM YOUNG-KWON , LEE SOO-IN
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80.发明专利
公开(公告)号：CA2454295A1
公开(公告)日：2004-11-20
申请号：CA2454295
申请日：2003-12-29
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM SEUNG-WON , LEE SOO-IN , LEE YONG-TAE , PARK SUNG-IK
IPC: H04N7/015 , H04H20/00 , H04H20/06 , H04N5/21 , H04N5/40 , H04N5/44 , H04N5/455 , H04N5/00 , H04H1/00 , H04B7/005
Abstract: A repeater and method for an ATSC terrestrial digital TV broadcasting service. The on-channel repeater includes: a receiving unit for receiving a Radio Frequency (RF) broadcast signal from a main transmitter; a frequency downlink converting unit for converting the received RF broadcast signal into an intermediate frequency (IF) signal; a demodulating unit for converting the converted IF signal into a baseband signal; an equalizing unit for removing noise and multi-path signals generated from the converted baseband signal; a modulating unit for converting the baseband signal into an IF signal; a frequency uplink converting unit for converting the IF signal into a RF broadcast signal; a high power amplifying unit for amplifying and repeating the converted RF broadcast signal; a transmitting unit for transmitting the RF broadcast signal outputted from the high power amplifying unit; and a signal synchronizing unit for generating the first reference frequency, and generating the second reference frequency based on the first reference frequency such that the transmission/reception signal are frequency-and-phase synchronized.
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