EP0443933B1 - Verfahren zur Einfügung von Tonmeldungen in Lokalrundfunksendungen - Google Patents

Verfahren zur Einfügung von Tonmeldungen in Lokalrundfunksendungen Download PDF

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Publication number
EP0443933B1
EP0443933B1 EP91400430A EP91400430A EP0443933B1 EP 0443933 B1 EP0443933 B1 EP 0443933B1 EP 91400430 A EP91400430 A EP 91400430A EP 91400430 A EP91400430 A EP 91400430A EP 0443933 B1 EP0443933 B1 EP 0443933B1
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EP
European Patent Office
Prior art keywords
messages
message
local
local broadcasting
broadcast
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
EP91400430A
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English (en)
French (fr)
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EP0443933A1 (de
Inventor
Francis Desmedt
Francis Leblanc
Jean-François Lapalus
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.)
AAVS ARCOMIS GROUPE AVS, SARL
Original Assignee
AAVS ARCOMIS GROUPE AVS SARL
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Publication date
Application filed by AAVS ARCOMIS GROUPE AVS SARL filed Critical AAVS ARCOMIS GROUPE AVS SARL
Publication of EP0443933A1 publication Critical patent/EP0443933A1/de
Application granted granted Critical
Publication of EP0443933B1 publication Critical patent/EP0443933B1/de
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information

Definitions

  • the present invention relates to a method for inserting audio messages into a locally broadcast program.
  • a particular, but not exclusive, application of the invention is the insertion of messages at predetermined times in a general broadcasting program. These are, for example, advertising messages or information to be inserted in a general program retransmitted by a local retransmitter, or in a program broadcast in a public place or at a workplace.
  • the aim of the invention is to allow this insertion to be carried out automatically, that is to say without requiring personnel at the local broadcasting center.
  • the method may include a step of detecting a time signal to control the reading, the conversion to analog form and the insertion of the message at the time determined by the time signal.
  • radio broadcasting programs that cover a large area using a satellite that acts as a relay between a central transmitter and re-transmitters located in local broadcasting centers.
  • a satellite that acts as a relay between a central transmitter and re-transmitters located in local broadcasting centers.
  • a local retransmitter it is interesting to insert, in the general program retransmitted by satellite, messages of interest only to the listeners of the geographic area considered, for example advertising messages for companies or local events or local information messages.
  • the insertion of messages can be carried out in response to the detection of a specific signal emitted by the central transmitter and retransmitted by the satellite. It is then necessary that the operator, in each local broadcasting center, be very attentive to the detection of this signal.
  • the method according to the invention allows automatic insertion of messages into the program broadcast locally.
  • FIG. 1 very schematically illustrates a network of radio broadcasting with a central transmitter 10, the signals of which are retransmitted by a satellite 12 to local broadcasting centers 30. These include a receiving antenna 38 receiving the signals from the satellite for their re-broadcasting by a local re-transmitter 31 and a transmitting antenna 39.
  • the audio messages to be inserted in the programs broadcast locally are converted in digital form into a central site 20, transmitted to the local centers 30 in digital form via a digital communication network 40 and are, in the various local centers 30, converted into analog form to be broadcast by the local retransmitters at the desired times.
  • a transmission of programs using a conversion of the analog signal in digital form to a central site and a conversion of the digital signal in analog form to a local broadcasting center is already known from document GB-A-2 163 628.
  • the central site 20 can be the one where the transmitter 10 is located, or be different.
  • the equipment necessary for the manufacture and for the analog recording of the messages comprises for example a tape recorder 21 with a microphone 21a and an equalizer 21b installed at the central site 20.
  • the messages are converted into digital form and stored in the memory of a computer processing unit at the central site.
  • Each message can be associated in particular with address information identifying the local broadcasting center for which it is intended as well as the time-stamped broadcasting program.
  • the output signals from the tape recorder 21 are sampled by means of a sampling circuit 22.
  • the computer processing unit comprises a microcomputer 23 equipped with a circuit 26 for analog / digital conversion, coding and compression of digital data . Such a circuit is known per se.
  • the data produced by this circuit in response to the signals received from the sampling circuit 22 are stored in memory by means of the microcomputer 23, for example on hard disk.
  • the microcomputer 23 acts as a server to ensure the transmission of messages to the local broadcasting centers via the digital network 40. This is advantageously the public integrated services digital network (ISDN).
  • ISDN public integrated services digital network
  • the microcomputer 23 is connected to the network 40 via an SO type interface circuit 24 and an ISDN access circuit 25.
  • Circuits 24 and 25 are well known. They may be made up of circuits referenced "Device SO” from the French company SCII or "PC SNET" from the French company OST.
  • Each local broadcasting center 30 comprises a slave microcomputer 33 connected to the network 40 by an SO 34 interface circuit and an ISDN access circuit 35, the circuits 34 and 35 being analogous to the circuits 24 and 25.
  • the microcomputer 33 comprises a mass memory such as a hard disk in which the messages transmitted in digital form by the network 40 are recorded.
  • the microcomputer 33 is also equipped with a circuit 36 suitable for ensuring decompression, the decoding and the digital / analog conversion of the recorded messages, that is to say a circuit carrying out the operations reverse of those carried out by the analog / digital conversion circuit, coding and compression of the microcomputer 23.
  • These two circuits 26 and 36 equipping microcomputers 23 and 33 can for example be constituted by sound digitization and compression cards using the compression method MICDA-SB (Pulse Modulation and Adaptive Differential Coding in Sub-bands) of the CNET (National Center of Telecommunications Studies) or the MASCAM process (WB48SBC) of CCETT using psychoacoustic properties in critical bands.
  • MICDA-SB Pulse Modulation and Adaptive Differential Coding in Sub-bands
  • CNET National Center of Telecommunications Studies
  • WB48SBC MASCAM process
  • the analog signals corresponding to the messages read from the mass memory of the microcomputer 33 and converted into analog form after decompression and decoding are transmitted to the re-transmitter 31.
  • the re-transmitter 31 can detect, in the signals received from the satellite 12, possible coded synchronization signals indicating the start of a message insertion. local. In response to the detection of such a synchronization signal, for example by decoding its frequency and its duration, the re-transmitter 31 produces a control signal, for example by closing a relay, which is applied to the microphone computer 33 for triggering the latter which is in standby and controlling the reading of a message or of a sequence of recorded messages. Simultaneously, the re-transmitter is switched to input to allow the broadcast of local messages.
  • the reading of a message with a view to broadcasting it is controlled at a determined time in accordance with programming information associated with the message, the time being detected by means of the internal clock of the microcomputer 33 .
  • the microcomputer 33 At the end of the broadcast of the local messages, the microcomputer 33 produces a signal which again causes the switching of the re-transmitter in order to re-connect the input of the latter to the receiving antenna 38.
  • the program executed by the server (or master) microcomputer 23 comprises modules whose sequence is illustrated in FIG. 2A.
  • the main menu 100 offers the choice between studio 110, programming 120 and network 130 modules.
  • the studio module 110 allows you to perform the functions of digitizing messages (module 112) and mixing and special effects (module 114).
  • Digitization of messages consists in triggering the reading of recorded analog messages and storage in mass memory of the scanned messages.
  • the module scanning also provides memory access for deleting unnecessary messages.
  • the mixing and special effects module allows you to work on digitized messages.
  • Special effects consist for example in the introduction of echo, inversion, amplification, reverberation, ... These are techniques well known in themselves.
  • the programming module 120 allows the creation, modification, duplication and deletion of programming files by an operator.
  • a file corresponds to a schedule for a time slot of a given day for a local broadcasting center and contains the list of messages to be broadcast with the day and the broadcasting time slot.
  • the network module 130 assumes in particular the function of transmission of programming to the local broadcasting centers. This transmission is carried out automatically, every night and for each local broadcasting center.
  • FIG. 2C shows the sequence of modules of the program executed by the slave microcomputer 33 of each local broadcasting center.
  • the program is waiting in a loop 150 and passes to the network module 160 or broadcast 170 when these modules are called.
  • the broadcasting module 170 is called when there is only a predetermined time T before the broadcasting time scheduled for the first message of the first file, this being detected by scanning an internal clock at the local broadcasting center.
  • the broadcast instant is determined by detection of the reception of this signal, and not by scanning the internal clock.
  • the available means can be used to assume other functions such as, for example, remote monitoring and remote maintenance of local broadcasting centers.
  • the method described above is remarkable in that it allows the insertion of local messages in a general broadcasting program by automatic means at each local broadcasting center. This is allowed thanks to the digital network 40 which allows downloading of the digitized messages. The download can be done for example at night, at a minimum cost. It will be noted that the means described could allow broadcasting in real time, insofar as the network 40 provides sufficient speed.
  • the digitization of audio messages not only allows them to be routed to local centers at the lowest cost, using a network such as ISDN, but also allows the reproduction of high-quality sound.
  • the network can also be used to download programs used by the microcomputers of local broadcasting centers, as well as for maintenance and possible modifications of these programs.
  • a complete reset of the hard disks of the microcomputers of the local broadcasting centers can be performed periodically to avoid excessive sectoring of these disks.
  • transmissions between the central site and a local broadcasting center may only be authorized after double identification.
  • a first identification is carried out as soon as the central site calls the local broadcasting center since the latter can identify the caller on the ISDN.
  • a second identification can then be carried out by recalling the central site by the local broadcasting center with the sending of an identification code that the central site will have generated randomly and sent beforehand to the local broadcasting center.
  • the method can be implemented not to insert messages in a program broadcast by a local rebroadcaster, but, for example, to insert messages in a program broadcast in a place such as a public place , a workplace, a shopping center ...

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Stereophonic System (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Claims (5)

  1. Verfahren zum Einfügen von Tonmeldungen zu bestimmten Zeitpunkten in eine Lokalfunksendung mit den folgenden Schritten:
    - Umwandeln einer zu einem bestimmten Zeitpunkt in eine von einer Lokalfunksendezentrale zu verbreitende Sendung einzufügenden Tonmeldung in Digitalform in einer Zentralstelle,
    - Speichern der zu übertragenden Meldungen in Digitalform in der Zentralstelle,
    - Übertragen der Meldung in Digitalform mittels eines digitalen Kommunikationsnetzes zwischen der Zentralstelle und der Lokalfunksendezentrale,
    - Speichern der empfangenen Meldung bei der Lokalfunksendezentrale in Digitalform, und
    - Umwandeln der empfangenen Meldung in Analogform bei der Lokalfunksendezentrale zu dem bestimmten Zeitpunkt und Einfügen der Meldung in die Lokalfunksendung.
  2. Verfahren nach Anspruch 1, gekennzeichnet durch einen weiteren Schritt des Erfassens eines Synchronisierungssignals bei der Lokalfunksendezentrale, um das Lesen, das Umwandeln in Analogform und das Einfügen der Meldung zu dem durch das Synchronisierungssignal bestimmten Zeitpunkt auszulösen.
  3. Verfahren nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß bei der Lokalfunksendezentrale die Meldung an einen Nebensender übermittelt wird, um in eine Sendung eingefügt zu werden, die von einem Zentralsender an den Nebensender ausgestrahlt wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Einfügen einer Meldung ausgelöst wird als Reaktion auf die Erfassung eines in den vom Nebensender empfangenen Signalen enthaltenen Synchronisierungssignals.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß für eine gegebene Lokalfunksendezentrale jeder Meldung eine auf die Tageszeit und den Sendetag bezogene Information zugeordnet ist.
EP91400430A 1990-02-21 1991-02-19 Verfahren zur Einfügung von Tonmeldungen in Lokalrundfunksendungen Expired - Lifetime EP0443933B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002145 1990-02-21
FR9002145A FR2658678A1 (fr) 1990-02-21 1990-02-21 Procede pour l'insertion de messages sonores dans un programme diffuse localement.

Publications (2)

Publication Number Publication Date
EP0443933A1 EP0443933A1 (de) 1991-08-28
EP0443933B1 true EP0443933B1 (de) 1995-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400430A Expired - Lifetime EP0443933B1 (de) 1990-02-21 1991-02-19 Verfahren zur Einfügung von Tonmeldungen in Lokalrundfunksendungen

Country Status (4)

Country Link
EP (1) EP0443933B1 (de)
AT (1) ATE129837T1 (de)
DE (1) DE69114153D1 (de)
FR (1) FR2658678A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2030369A6 (es) * 1991-03-22 1992-10-16 Garcia Barrio Miguel Angel Sistema de grabacion y reproduccion de cunas radiofonicas digital avanzado.
GB9113394D0 (en) * 1991-06-21 1991-08-07 British Broadcasting Corp Broadcast relay transmission system
US5715018A (en) * 1992-04-10 1998-02-03 Avid Technology, Inc. Digital advertisement insertion system
FR2711025B1 (fr) * 1993-10-07 1995-11-17 Telediffusion Fse Système de diffusion de programmes radiophoniques ou de télévision à décrochages locaux.
EP1363417A1 (de) * 2002-05-13 2003-11-19 Sony International (Europe) GmbH Verringerung der Spitzenleistung in Simulcast Rundfunksignalen
TW200421837A (en) 2002-12-17 2004-10-16 Koninkl Philips Electronics Nv Mobile device that uses removeable medium for playback of content
RU2317644C2 (ru) * 2003-01-10 2008-02-20 Сони Дойчланд Гмбх Одновременная передача мцв/ам сигнала
US20090046624A1 (en) 2007-08-14 2009-02-19 Canam Technology Incorporated System and method for inserting break-in signals in communication systems
US20130094426A1 (en) 2009-09-11 2013-04-18 Geo-Broadcast Solutions Llc Equipment, system and methodologies for transmitting localized auxiliary information and rds/rbds information via multiple rf frequencies, rf power, and antenna selection of boosters in a segmented listening area delivering localized auxiliary information
US8862048B2 (en) 2009-09-11 2014-10-14 Geo-Broadcast Solutions, Llc Equipment, system and methodologies for segmentation of listening area into sub-areas enabling delivery of localized auxiliary information

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1514941A (en) * 1975-09-15 1978-06-21 British Broadcasting Corp Broadcasting messages
JPS5954342A (ja) * 1982-09-21 1984-03-29 Sumitomo Electric Ind Ltd 交通情報放送メツセ−ジ自動編集装置
DE3431168A1 (de) * 1984-08-24 1986-03-06 Standard Elektrik Lorenz Ag Einrichtung zum uebermitteln allgemeinzugaenglicher nachrichten
GB2195868A (en) * 1986-08-21 1988-04-13 Gainsborough Holdings Ltd Broadcasting of map information

Also Published As

Publication number Publication date
DE69114153D1 (de) 1995-12-07
EP0443933A1 (de) 1991-08-28
FR2658678A1 (fr) 1991-08-23
ATE129837T1 (de) 1995-11-15

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