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ES2108711T3 - Procesador de datos radiofrecuencia para television por cable. - Google Patents

Procesador de datos radiofrecuencia para television por cable.

Info

Publication number
ES2108711T3
ES2108711T3 ES91906937T ES91906937T ES2108711T3 ES 2108711 T3 ES2108711 T3 ES 2108711T3 ES 91906937 T ES91906937 T ES 91906937T ES 91906937 T ES91906937 T ES 91906937T ES 2108711 T3 ES2108711 T3 ES 2108711T3
Authority
ES
Spain
Prior art keywords
data
cable television
data processor
radio frequency
frequency data
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
ES91906937T
Other languages
English (en)
Inventor
Jay Cauthern Mcmullan Jr
Douglas John Hoder
Donald Randolph Huntley
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.)
Scientific Atlanta LLC
Original Assignee
Scientific Atlanta LLC
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 US07/498,084 external-priority patent/US5155590A/en
Priority claimed from US07/498,083 external-priority patent/US5235619A/en
Application filed by Scientific Atlanta LLC filed Critical Scientific Atlanta LLC
Application granted granted Critical
Publication of ES2108711T3 publication Critical patent/ES2108711T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2035—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using a single or unspecified number of carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • Computer Graphics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Television Systems (AREA)

Abstract

UN PROCESADOR DE DATOS DE FRECUENCIA DE RADIO DE TELEVISION POR CABLE (322) PARA RECIBIR Y PROCESAR DATOS TRANSMITIDOS DESDE UN TERMINAL DE TELEVISION POR CABLE (315) A UNA CABEZA (312) DE UN SISTEMA DE TELEVISION POR CABLE COMPRENDE UNA SERIE DE RECEPTORES DE DATOS (810-813) PARA RECIBIR LOS DATOS DEVUELTOS, DETECTORES ASOCIADOS CON CADA RECEPTOR PARA DAR UNA INDICACION DE LA INTENSIDAD DE SEÑAL RECIBIDA Y UN PROCESADOR DE DATOS (840). EL PROCESADOR DE DATOS (840) SENSIBLE A LOS RECEPTORES DE DATOS (810-813) ELIMINA DATOS REDUNDANTES Y RECOGE ESTADISTICAS SOBRE VOLUMEN DE DATOS Y, SENSIBLE A LOS DETECTORES, RECOGE ESTADISTICAS SOBRE LA INTENSIDAD DE SEÑAL RECIBIDA. EL PROCESADOR DE DATOS (840) PUEDE ENTONCES INICIAR LA RECALIBRACION DE NIVELES DE SEÑAL TRASMITIDA O UNA SELECCION APROPIADA DE CANALES DE TRANSMISION DE DATOS COMO SEA NECESARIO.
ES91906937T 1990-03-20 1991-03-20 Procesador de datos radiofrecuencia para television por cable. Expired - Lifetime ES2108711T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/498,084 US5155590A (en) 1990-03-20 1990-03-20 System for data channel level control
US07/498,083 US5235619A (en) 1990-03-20 1990-03-20 Cable television radio frequency subscriber data transmission apparatus and rf return method
US07/503,422 US5142690A (en) 1990-03-20 1990-04-02 Cable television radio frequency data processor

Publications (1)

Publication Number Publication Date
ES2108711T3 true ES2108711T3 (es) 1998-01-01

Family

ID=27414086

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91906937T Expired - Lifetime ES2108711T3 (es) 1990-03-20 1991-03-20 Procesador de datos radiofrecuencia para television por cable.

Country Status (11)

Country Link
US (1) US5142690A (es)
EP (1) EP0532504B1 (es)
JP (1) JPH05505913A (es)
CN (1) CN1056788A (es)
AU (1) AU659372B2 (es)
BR (1) BR9106267A (es)
CA (1) CA2078562A1 (es)
DE (1) DE69126432T2 (es)
ES (1) ES2108711T3 (es)
MX (1) MX174456B (es)
WO (1) WO1991015062A1 (es)

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DE69126432T2 (de) 1998-01-08
BR9106267A (pt) 1992-12-01
AU659372B2 (en) 1995-05-11
JPH05505913A (ja) 1993-08-26
DE69126432D1 (de) 1997-07-10
EP0532504B1 (en) 1997-06-04
MX174456B (es) 1994-05-17
EP0532504A4 (en) 1993-08-04
CN1056788A (zh) 1991-12-04
US5142690A (en) 1992-08-25
WO1991015062A1 (en) 1991-10-03
EP0532504A1 (en) 1993-03-24
CA2078562A1 (en) 1991-09-21
AU7564291A (en) 1991-10-21

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