ES2113967T3 - Receptor qam con medio de deteccion del tamaño de la constelacion. - Google Patents

Receptor qam con medio de deteccion del tamaño de la constelacion.

Info

Publication number
ES2113967T3
ES2113967T3 ES93104294T ES93104294T ES2113967T3 ES 2113967 T3 ES2113967 T3 ES 2113967T3 ES 93104294 T ES93104294 T ES 93104294T ES 93104294 T ES93104294 T ES 93104294T ES 2113967 T3 ES2113967 T3 ES 2113967T3
Authority
ES
Spain
Prior art keywords
qam
synchronization
detected
tests
receiver
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.)
Expired - Lifetime
Application number
ES93104294T
Other languages
English (en)
Inventor
Woo H Paik
Scott A Lery
John M Fox
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.)
Arris Technology Inc
Original Assignee
Arris Technology Inc
General Instrument Corp
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 Arris Technology Inc, General Instrument Corp filed Critical Arris Technology Inc
Application granted granted Critical
Publication of ES2113967T3 publication Critical patent/ES2113967T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Systems (AREA)

Abstract

SE PONE A DISPOSICION UN SISTEMA DE COMUNICACION DE MODULACION DE AMPLITUD DE CUADRATURA (QAM) EN EL CUAL LOS DATOS PUEDEN SER COMUNICADOS EN CUALQUIERA DE UNA PLURALIDAD DE MODOS QAM, TALES COMO 16-QAM, 32-QAM Y 64-QAM (30). UN RECEPTOR (70) DETECTA EL MODO QAM PARTICULAR TRANSMITIDO SOBRE UN ENSAYO Y BASE DE ERROR MEDIANTE EL INTENTO DE DECODIFICACION DE LOS DATOS RECIBIDOS UTILIZANDO DIFERENTES MODOS QAM HASTA QUE ES DETECTADO UNA CONDICION DE SINCRONIZACION. LA CONDICION DE SINCRONIZACION PUEDE REQUERIR QUE SE CUMPLAN UNA PLURALIDAD DE DIFERENTES PRUEBAS DE SINCRONIZACION. EN UNA INCORPORACION ESPECIFICA, UN TESTS PRIMERO DE SINCRONIZACION SE CUMPLIMENTA CUANDO UNA TASA DE RENORMALIZACION DE UN DECODIFICADOR (90) ENREJADO ESTA POR DEBAJO DE UN VALOR UMBRAL. UN SEGUNDO TESTS DE SINCRONIZACION SE CUMPLE CUANDO UNA PRIMERA PALABRA DE SINCRONIZACION ES DETECTADA EN LOS DATOS RECIBIDOS. UNA TERCERA Y FINAL PRUEBA DE SINCRONIZACION SE CUMPLE CUANDO UNA SEGUNDA PALABRA DE SINCRONIZACION ES DETECTADA EN LOS DATOS RECIBIDOS. A FIN DE REDUCIR EL COSTE DEL RECEPTOR, LA MAYORIA DE LOS COMPONENTE (76,80,84,90,98,102) DEPENDIENTES DEL MODO QAM SON IMPLANTADOS UTILIZANDO TABLAS DE CONSULTA ALMACENADAS EN PROMS.
ES93104294T 1992-03-24 1993-03-16 Receptor qam con medio de deteccion del tamaño de la constelacion. Expired - Lifetime ES2113967T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/852,330 US5363408A (en) 1992-03-24 1992-03-24 Mode selective quadrature amplitude modulation communication system

Publications (1)

Publication Number Publication Date
ES2113967T3 true ES2113967T3 (es) 1998-05-16

Family

ID=25313055

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93104294T Expired - Lifetime ES2113967T3 (es) 1992-03-24 1993-03-16 Receptor qam con medio de deteccion del tamaño de la constelacion.

Country Status (9)

Country Link
US (1) US5363408A (es)
EP (1) EP0562422B1 (es)
JP (2) JP3511388B2 (es)
KR (1) KR0152450B1 (es)
AU (1) AU660136B2 (es)
CA (1) CA2091814C (es)
DE (1) DE69316415T2 (es)
ES (1) ES2113967T3 (es)
NO (1) NO931053L (es)

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Also Published As

Publication number Publication date
NO931053L (no) 1993-09-27
CA2091814C (en) 2000-08-08
DE69316415D1 (de) 1998-02-26
US5363408A (en) 1994-11-08
KR0152450B1 (ko) 1998-11-02
DE69316415T2 (de) 1998-08-06
AU660136B2 (en) 1995-06-08
EP0562422A1 (en) 1993-09-29
JPH06120994A (ja) 1994-04-28
JP3511388B2 (ja) 2004-03-29
JP3431919B2 (ja) 2003-07-28
CA2091814A1 (en) 1993-09-25
JP2003179659A (ja) 2003-06-27
KR930020882A (ko) 1993-10-20
EP0562422B1 (en) 1998-01-21
AU3401693A (en) 1993-09-30
HK1008454A1 (en) 1999-05-07
NO931053D0 (no) 1993-03-23

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