IT1183872B - Sistema di distribuzione di segnali a larga banda - Google Patents

Sistema di distribuzione di segnali a larga banda

Info

Publication number
IT1183872B
IT1183872B IT67509/85A IT6750985A IT1183872B IT 1183872 B IT1183872 B IT 1183872B IT 67509/85 A IT67509/85 A IT 67509/85A IT 6750985 A IT6750985 A IT 6750985A IT 1183872 B IT1183872 B IT 1183872B
Authority
IT
Italy
Prior art keywords
distribution system
signal distribution
broadband signal
broadband
signal
Prior art date
Application number
IT67509/85A
Other languages
English (en)
Other versions
IT8567509A1 (it
IT8567509A0 (it
Inventor
Alfredo Fausone
Agostino Moncalvo
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of IT8567509A0 publication Critical patent/IT8567509A0/it
Priority to IT67509/85A priority Critical patent/IT1183872B/it
Priority to US06/861,074 priority patent/US4716587A/en
Priority to ES555185A priority patent/ES8707397A1/es
Priority to JP61121423A priority patent/JPS61281728A/ja
Priority to EP86107441A priority patent/EP0204296A3/en
Priority to CA000510648A priority patent/CA1273103A/en
Priority to NO862181A priority patent/NO862181L/no
Priority to DE198686107441T priority patent/DE204296T1/de
Priority to DK259686A priority patent/DK259686A/da
Publication of IT8567509A1 publication Critical patent/IT8567509A1/it
Application granted granted Critical
Publication of IT1183872B publication Critical patent/IT1183872B/it

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365Multiplexing of several video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2368Multiplexing of audio and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4341Demultiplexing of audio and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347Demultiplexing of several video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382Demodulation or channel decoding, e.g. QPSK demodulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/141Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148Interfacing a video terminal to a particular transmission medium, e.g. ISDN
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/24Systems for the transmission of television signals using pulse code modulation
    • H04N7/52Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
IT67509/85A 1985-06-03 1985-06-03 Sistema di distribuzione di segnali a larga banda IT1183872B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT67509/85A IT1183872B (it) 1985-06-03 1985-06-03 Sistema di distribuzione di segnali a larga banda
US06/861,074 US4716587A (en) 1985-06-03 1986-05-08 Broadband-signal broadcasting system
ES555185A ES8707397A1 (es) 1985-06-03 1986-05-21 Sistema de distribucion de senales de banda ancha
JP61121423A JPS61281728A (ja) 1985-06-03 1986-05-28 広帯域放送システム
EP86107441A EP0204296A3 (en) 1985-06-03 1986-06-02 Broadband-signal broadcasting system
CA000510648A CA1273103A (en) 1985-06-03 1986-06-02 Broadband signal broadcasting system
NO862181A NO862181L (no) 1985-06-03 1986-06-02 Brebaands-signal kringkastningssystem.
DE198686107441T DE204296T1 (de) 1985-06-03 1986-06-02 Breitbandsignal-uebertragungssystem.
DK259686A DK259686A (da) 1985-06-03 1986-06-02 System til transmission af bredbaandssignaler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67509/85A IT1183872B (it) 1985-06-03 1985-06-03 Sistema di distribuzione di segnali a larga banda

Publications (3)

Publication Number Publication Date
IT8567509A0 IT8567509A0 (it) 1985-06-03
IT8567509A1 IT8567509A1 (it) 1986-12-03
IT1183872B true IT1183872B (it) 1987-10-22

Family

ID=11303011

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67509/85A IT1183872B (it) 1985-06-03 1985-06-03 Sistema di distribuzione di segnali a larga banda

Country Status (9)

Country Link
US (1) US4716587A (it)
EP (1) EP0204296A3 (it)
JP (1) JPS61281728A (it)
CA (1) CA1273103A (it)
DE (1) DE204296T1 (it)
DK (1) DK259686A (it)
ES (1) ES8707397A1 (it)
IT (1) IT1183872B (it)
NO (1) NO862181L (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908859A (en) * 1986-09-19 1990-03-13 M/A-Com Government Systems, Inc. Receiver access interface to service components in television channel
JPH02108386A (ja) * 1988-10-18 1990-04-20 Pioneer Electron Corp Catvシステム
FR2691030B1 (fr) * 1992-05-06 1995-03-17 Telediffusion Fse Procédé et système de transmission d'un signal numérique codé sur N bits par une interface d'émission-réception de signaux codés sur N+M bits, et leur utilisation en télévision numérique.
US5243647A (en) * 1992-06-10 1993-09-07 Scientific-Atlanta, Inc. Method and apparatus for broadband signal distribution

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952735A (en) * 1955-04-18 1960-09-13 Paramount Pictures Corp Secrecy system
US3789131A (en) * 1972-08-03 1974-01-29 Oak Industries Inc Selective coding system for subscription television
US3975585A (en) * 1973-01-31 1976-08-17 Columbia Pictures Industries, Inc. Electronic communications system for supplementary video program distribution
US3914534A (en) * 1973-10-29 1975-10-21 Magnavox Co Methods and apparatus for scrambling and unscrambling premium television channels
JPS55127777A (en) * 1979-03-24 1980-10-02 Pioneer Electronic Corp Scramble method of catv system
US4464678A (en) * 1982-01-21 1984-08-07 Rca Corporation Time window key system for video scrambling
US4611242A (en) * 1984-05-07 1986-09-09 Zenith Electronics Corporation Two mode scrambling system using identifier pulse in vertical blanking interval

Also Published As

Publication number Publication date
NO862181D0 (no) 1986-06-02
JPS61281728A (ja) 1986-12-12
EP0204296A3 (en) 1988-09-28
US4716587A (en) 1987-12-29
NO862181L (no) 1986-12-04
DK259686A (da) 1986-12-04
DE204296T1 (de) 1989-01-26
DK259686D0 (da) 1986-06-02
IT8567509A1 (it) 1986-12-03
CA1273103C (en) 1990-08-21
EP0204296A2 (en) 1986-12-10
CA1273103A (en) 1990-08-21
ES8707397A1 (es) 1987-07-16
IT8567509A0 (it) 1985-06-03
ES555185A0 (es) 1987-07-16

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