ES2091989T3 - Procedimiento para la preparacion de señales de television sobre portadora y/o señales de tono asi como utilizacion. - Google Patents

Procedimiento para la preparacion de señales de television sobre portadora y/o señales de tono asi como utilizacion.

Info

Publication number
ES2091989T3
ES2091989T3 ES92117171T ES92117171T ES2091989T3 ES 2091989 T3 ES2091989 T3 ES 2091989T3 ES 92117171 T ES92117171 T ES 92117171T ES 92117171 T ES92117171 T ES 92117171T ES 2091989 T3 ES2091989 T3 ES 2091989T3
Authority
ES
Spain
Prior art keywords
signals
carrier
channel
frequency
transmission
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
ES92117171T
Other languages
English (en)
Inventor
Karlheinz Dipl-Ing Fh Grotz
Klaus Dipl-Ing Fh Krull
Georg Dipl-Ing Sussmeier
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of ES2091989T3 publication Critical patent/ES2091989T3/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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling 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
    • H04N21/2365—Multiplexing of several video streams
    • 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
    • H04N21/434—Disassembling 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
    • H04N21/4347—Demultiplexing of several video streams
    • 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • 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
    • H04N7/0806—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 the signals being two or more video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems 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
    • H04N7/54—Systems 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Saccharide Compounds (AREA)

Abstract

PARA EL TRATAMIENTO DE SEÑALES DE TELEVISION PORTADAS Y/O SEÑALES DE SONIDO EN UN BANDA DE FRECUENCIAS INTERMEDIA (ZF), SE DIGITALIZAN (A/D) POR CANALES EN FORMA CERRADA LAS SEÑALES PORTADORAS. PARA LA TRANSMISION POR EL SISTEMA MULTIPLEX DE DISTRIBUCION EN EL TIEMPO, SON LLEVADAS LAS SEÑALES DE LOS CANALES DIGITALIZADAS POR MEDIO DE LA TRANSFORMACION DE LA FRECUENCIA DIGITAL (DFU) A LA BANDA BASICA. DESPUES DE LA TRANSMISION PUEDE EFECTUARSE UNA RECONVERSION DE CANALES INDIVIDUALES EN UNA BANDA DE FRECUENCIAS INTERMEDIA DIGITAL, O UNA TRANSFORMACION (DFU1, DFU2, DFUN) EN DIFERENTES FRECUENCIAS PARA LA FORMACION DE UNA SEÑAL DE FRECUENCIA MULTIPLEX DIGITAL, LA CUAL PUEDE SER ENVIADA A UNA RED DE DISTRIBUCION. EL PROCEDIMIENTO SEGUN LA INVENCION, PERMITE UNA TRANSMISION DE ALTA CALIDAD Y/O UNA DISTRIBUCION CON UN COSTE REDUCIDO ESPECIALMENTE EN LA PARTE RECEPTORA.
ES92117171T 1991-11-02 1992-10-08 Procedimiento para la preparacion de señales de television sobre portadora y/o señales de tono asi como utilizacion. Expired - Lifetime ES2091989T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4136111A DE4136111A1 (de) 1991-11-02 1991-11-02 Verfahren zur aufbereitung von getraegerten fernsehsignalen und/oder tonsignalen sowie anwendung

Publications (1)

Publication Number Publication Date
ES2091989T3 true ES2091989T3 (es) 1996-11-16

Family

ID=6443940

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92117171T Expired - Lifetime ES2091989T3 (es) 1991-11-02 1992-10-08 Procedimiento para la preparacion de señales de television sobre portadora y/o señales de tono asi como utilizacion.

Country Status (4)

Country Link
EP (1) EP0545031B1 (es)
AT (1) ATE143206T1 (es)
DE (2) DE4136111A1 (es)
ES (1) ES2091989T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428606B4 (de) * 1994-08-12 2004-04-29 Deutsche Telekom Ag Verfahren und Anordnung zur Rundfunk-Übertragung von codierten Signalen
DE19703079A1 (de) * 1997-01-29 1998-07-30 Bosch Gmbh Robert Verfahren zur Aufbereitung von in einer Zwischenfrequenzlage angelieferten Bandpaßsignalen
DE19804425A1 (de) * 1998-02-05 1999-08-12 Cit Alcatel Breitbandinformationssystem für Verteildienste und interaktive Dienste

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707243A1 (de) * 1987-03-06 1988-09-15 Siemens Ag Verfahren zur digitalen uebertragung von fernsehsignalen
DE3801116A1 (de) * 1988-01-16 1989-07-27 Bosch Gmbh Robert Verfahren und vorrichtung zur gemeinsamen uebertragung von digitalisierten fernseh-, ton- und datensignalen
DE4008201A1 (de) * 1990-03-15 1991-09-26 Ant Nachrichtentech Verfahren zur aufbereitung von mehreren fernsehsignalen fuer uebertragungszwecke sowie anwendung

Also Published As

Publication number Publication date
DE4136111A1 (de) 1993-05-06
EP0545031B1 (de) 1996-09-18
ATE143206T1 (de) 1996-10-15
EP0545031A1 (de) 1993-06-09
DE59207178D1 (de) 1996-10-24

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