EP1645125A1 - Systeme de transmission de diffusion numerique a capacite de reception amelioree et procede de traitement de signaux - Google Patents

Systeme de transmission de diffusion numerique a capacite de reception amelioree et procede de traitement de signaux

Info

Publication number
EP1645125A1
EP1645125A1 EP04773905A EP04773905A EP1645125A1 EP 1645125 A1 EP1645125 A1 EP 1645125A1 EP 04773905 A EP04773905 A EP 04773905A EP 04773905 A EP04773905 A EP 04773905A EP 1645125 A1 EP1645125 A1 EP 1645125A1
Authority
EP
European Patent Office
Prior art keywords
signal
pilot
input signal
transmission system
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04773905A
Other languages
German (de)
English (en)
Inventor
Joon-Soo Kim
Dong-Hoon Lee
Jung-Won Kwak
Chan-Sub Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020030062836A external-priority patent/KR20050008429A/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1645125A1 publication Critical patent/EP1645125A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0091—Continuous signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Circuits Of Receivers In General (AREA)
  • Packages (AREA)

Abstract

L'invention concerne un système de transmission de diffusion numérique et son procédé de traitement de signaux qui offrent une capacité de réception améliorée. Le système de transmission comprend une unité de codage de correction d'erreur permettant de coder un signal d'entrée d'après un procédé de correction d'erreur prédéterminé ; une unité d'insertion de signal synchrone permettant d'insérer un signal synchrone dans le signal d'entrée après le codage de correction d'erreur ; une première unité d'insertion pilote permettant d'insérer un premier signal pilote dans le signal d'entrée contenant le signal synchrone ; une seconde unité d'insertion pilote permettant d'insérer une pluralité de seconds signaux pilotes dans le signal d'entrée contenant le premier signal pilote, un filtre de formation par impulsion permettant de former par impulsion le signal d'entrée avec les premier et second signaux pilotes d'après le facteur prédéterminé d'affaiblissement ; et une unité de radiofréquence RF permettant de transmettre le signal d'entrée formé par impulsion vers la bande de canal de transmission. L'insertion d'une pluralité de signaux pilotes dans les données transmises permet de résoudre les problèmes liés à la disparition du signal pilote en raison d'un environnement de canal insuffisant.
EP04773905A 2003-07-10 2004-06-10 Systeme de transmission de diffusion numerique a capacite de reception amelioree et procede de traitement de signaux Withdrawn EP1645125A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US48573703P 2003-07-10 2003-07-10
KR1020030062836A KR20050008429A (ko) 2003-07-10 2003-09-08 수신 성능을 향상시킨 디지털 방송 송/수신 시스템 및그의 신호처리방법
PCT/KR2004/001382 WO2005006749A1 (fr) 2003-07-10 2004-06-10 Systeme de transmission de diffusion numerique a capacite de reception amelioree et procede de traitement de signaux

Publications (1)

Publication Number Publication Date
EP1645125A1 true EP1645125A1 (fr) 2006-04-12

Family

ID=36939068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04773905A Withdrawn EP1645125A1 (fr) 2003-07-10 2004-06-10 Systeme de transmission de diffusion numerique a capacite de reception amelioree et procede de traitement de signaux

Country Status (3)

Country Link
EP (1) EP1645125A1 (fr)
MX (1) MXPA06000241A (fr)
WO (1) WO2005006749A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100708479B1 (ko) 2005-03-24 2007-04-18 삼성전자주식회사 디지털 방송 송신 장치 및 방법 그리고 디지털 방송 수신장치 및 방법
WO2006101359A1 (fr) * 2005-03-24 2006-09-28 Samsung Electronics Co., Ltd. Dispositifs de transmission et reception en diffusion numerique et procedes
US8260292B2 (en) 2007-02-15 2012-09-04 Lg Electronics Inc. Hierarchical service list

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5519730A (en) * 1990-06-12 1996-05-21 Jasper; Steven C. Communication signal having a time domain pilot component
US6307896B1 (en) * 1998-04-03 2001-10-23 Tektronix, Inc. Instrumentation receiver for digitally modulated radio frequency signals
KR100326120B1 (ko) * 1999-07-20 2002-03-07 윤종용 멀티 캐리어 코드분할다중접속 비동기전송모드의 송수신시스템
KR20010055543A (ko) * 1999-12-10 2001-07-04 박종섭 고화질 텔레비전의 티시엠을 이용한 브이에스비 송/수신장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005006749A1 *

Also Published As

Publication number Publication date
MXPA06000241A (es) 2006-07-03
WO2005006749A1 (fr) 2005-01-20

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