MX9702409A - Sistema de transmision para difusion de audio digital. - Google Patents

Sistema de transmision para difusion de audio digital.

Info

Publication number
MX9702409A
MX9702409A MX9702409A MX9702409A MX9702409A MX 9702409 A MX9702409 A MX 9702409A MX 9702409 A MX9702409 A MX 9702409A MX 9702409 A MX9702409 A MX 9702409A MX 9702409 A MX9702409 A MX 9702409A
Authority
MX
Mexico
Prior art keywords
symbols
digital audio
audio broadcasting
transmission system
header
Prior art date
Application number
MX9702409A
Other languages
English (en)
Other versions
MXPA97002409A (es
Inventor
Jin-Der Wang
Original Assignee
Lucent Technologies Inc
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
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of MX9702409A publication Critical patent/MX9702409A/es
Publication of MXPA97002409A publication Critical patent/MXPA97002409A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/72—Wireless systems of terrestrial networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Error Detection And Correction (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La presente invencion se refiere a un sistema de difusion de audio digital (DAB) que incluye un transmisor de radio-frecuencia (RF) y un receptor RF correspondiente. El transmisor RF formatea una señal DAB en una secuencia de cuadros, cada cuadro tiene un cabezal que comprende un agrupamiento predefinido de secuencias de numeros pseudoaleatorios que comprenden 100 símbolos. De estos 100 símbolos, 86 símbolos del cabezal se emplean para sincronizacion de cuadro y sondeo de canal (para caracterizacion de un canal de comunicaciones) mientras que los 14 símbolos restantes se emplean para sincronizacion de datos e intercalador en una forma intercalada.
MXPA/A/1997/002409A 1996-04-04 1997-04-02 Sistema de transmision para difusion de audio digital MXPA97002409A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/628,119 US5751774A (en) 1996-04-04 1996-04-04 Transmission system for digital audio broadcasting
US08628119 1996-04-04

Publications (2)

Publication Number Publication Date
MX9702409A true MX9702409A (es) 1998-03-31
MXPA97002409A MXPA97002409A (es) 1998-10-15

Family

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Also Published As

Publication number Publication date
CA2199762A1 (en) 1997-10-04
JP3219243B2 (ja) 2001-10-15
TW399376B (en) 2000-07-21
US5751774A (en) 1998-05-12
CA2199762C (en) 2001-08-07
CN1167382A (zh) 1997-12-10
IL120570A (en) 2000-01-31
IL120570A0 (en) 1997-08-14
EP0800287A2 (en) 1997-10-08
JPH1022867A (ja) 1998-01-23
EP0800287A3 (en) 2001-01-24
KR970072806A (ko) 1997-11-07

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