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MXPA05003014A - Capacidad de informacion expandida adaptable para sistemas de comunicaciones. - Google Patents

Capacidad de informacion expandida adaptable para sistemas de comunicaciones.

Info

Publication number
MXPA05003014A
MXPA05003014A MXPA05003014A MXPA05003014A MXPA05003014A MX PA05003014 A MXPA05003014 A MX PA05003014A MX PA05003014 A MXPA05003014 A MX PA05003014A MX PA05003014 A MXPA05003014 A MX PA05003014A MX PA05003014 A MXPA05003014 A MX PA05003014A
Authority
MX
Mexico
Prior art keywords
data
video signal
signal
television
receivers
Prior art date
Application number
MXPA05003014A
Other languages
English (en)
Inventor
Ted E Hartson
Original Assignee
Dotcast 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 Dotcast Inc filed Critical Dotcast Inc
Publication of MXPA05003014A publication Critical patent/MXPA05003014A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03388—ASK
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • H04L2025/0363—Feature restoration, e.g. constant modulus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
  • Details Of Television Systems (AREA)

Abstract

Metodos y sistemas para la transmision simultanea de una senal de video de television analoga estandar y una senal de datos. Un sistema de transmisor comprende una trayectoria de senal de video analoga y una trayectoria de senal de datos. La trayectoria de senal de datos produce una senal de datos que se agrega, se combina o de otro modo se impone sobre la senal de video, a fin de estar sustancialmente en cuadratura con la senal de video segun se detecta por los receptores de television en la region de radiodifusion. Se genera una senal de reduccion y se aplica a la senal de video para corregir los efectos de los datos sobre la senal de video. Los receptores pueden, entre otras cosas separar los datos de la senal de video, procesar la senal de datos a fin de extraer y recuperar los datos, y dar curso a los datos para salida. Tales receptores pueden incluir o contener tambien, si se desea, salidas para receptores de television para presentar programacion de television. Tambien se describen y se reivindican otros aspectos y caracteristicas.
MXPA05003014A 2002-09-18 2003-09-17 Capacidad de informacion expandida adaptable para sistemas de comunicaciones. MXPA05003014A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/246,084 US20030112370A1 (en) 2001-12-18 2002-09-18 Adaptive expanded information capacity for communications systems
PCT/US2003/029423 WO2004028159A1 (en) 2002-09-18 2003-09-17 Adaptive expanded information capacity for television communications systems

Publications (1)

Publication Number Publication Date
MXPA05003014A true MXPA05003014A (es) 2006-02-17

Family

ID=32028944

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05003014A MXPA05003014A (es) 2002-09-18 2003-09-17 Capacidad de informacion expandida adaptable para sistemas de comunicaciones.

Country Status (8)

Country Link
US (1) US20030112370A1 (es)
EP (1) EP1540951A1 (es)
CN (1) CN1736101A (es)
AU (1) AU2003299009A1 (es)
BR (1) BR0314623A (es)
CA (1) CA2509865A1 (es)
MX (1) MXPA05003014A (es)
WO (1) WO2004028159A1 (es)

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Also Published As

Publication number Publication date
AU2003299009A1 (en) 2004-04-08
WO2004028159A1 (en) 2004-04-01
CA2509865A1 (en) 2004-04-01
CN1736101A (zh) 2006-02-15
BR0314623A (pt) 2005-08-02
US20030112370A1 (en) 2003-06-19
EP1540951A1 (en) 2005-06-15

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