DE10139069A1 - Method for regional mixing of local programs in digital video broadcast common wave network feeds in programs transmitted nationally and locally instead of one program transmitted nationally. - Google Patents
Method for regional mixing of local programs in digital video broadcast common wave network feeds in programs transmitted nationally and locally instead of one program transmitted nationally.Info
- Publication number
- DE10139069A1 DE10139069A1 DE2001139069 DE10139069A DE10139069A1 DE 10139069 A1 DE10139069 A1 DE 10139069A1 DE 2001139069 DE2001139069 DE 2001139069 DE 10139069 A DE10139069 A DE 10139069A DE 10139069 A1 DE10139069 A1 DE 10139069A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
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- 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
- H04N21/21—Server components or server architectures
- H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
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- 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
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- 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
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
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- 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
- H04N21/23611—Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate
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- 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
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
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- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
Abstract
Description
Die Erfindung betrifft ein Verfahren zum regionalen Einblenden mindestens eines Lokalprogrammes anstelle mindestens eines der mehreren landesweit über ein DVB- Gleichwellennetz ausgestrahlten Programme zur synchronen Ausstrahlung über mehrere Sender und eine Anordnung zum Ausführen dieses Verfahrens. The invention relates to a method for regional Show at least one local program instead at least one of the several nationwide via a DVB Radio broadcasting programs for synchronous Broadcast over several transmitters and an arrangement for Perform this procedure.
Bei einem sogenannten DVB-T SFN (Digital Video Broadcasting Terrestrial Single Frequency Network) ist es oftmals wünschenswert, in einem Teil des landesweiten Sendegebietes eines der landesweiten Programme gegen ein anderes beispielsweise lokales Regionalprogramm auszutauschen. Wenn das Lokalprogramm nur über einen Sender ausgestrahlt wird, ist ein Austausch direkt auf der Ebene der dem Sender zugeführten MPEG-2-Transportstrom-Pakete möglich (MPEG: Motion Pictures Experts Group, Weltstandard für die Quellcodierung von Video- und Audiosignalen nach ISO/IEC 13818). Wenn das Lokalprogramm jedoch wie die ursprünglichen landesweiten Programme über mehrere Sender eines sogenannten Gleichwellennetzes ausgestrahlt werden soll, muß die Eintastung auf der Ebene der Transportstrompakete synchronisiert werden. In einem üblichen DVB- Gleichwellennetz wird der MPEG-Transportstrom von einem zentralen Punkt aus den einzelnen Sendern zugeführt und so sichergestellt, daß alle Sender das Programm synchron abstrahlen. Wenn eines oder mehrere der landesweiten Programme durch ein oder mehrere lokale Programme ersetzt werden, so muß auch hierfür diese Synchronität im DVB- Gleichwellennetz gewährleistet sein. Dies wird bisher dadurch erreicht, daß auch das einzublendende Lokalprogramm von einem zentralen Punkt aus den in einem Teil des Sendegebietes arbeitenden lokalen Sendern zugeführt wird. Die Schaffung dieses zentralen Einspeisepunktes für das lokale Programm bedeutet hohe Kosten in Bezug auf Zuführungsleitungen und einen Remultiplexer. With a so-called DVB-T SFN (Digital Video Broadcasting Terrestrial Single Frequency Network) it is often desirable in part of the nationwide broadcasting area one of the nationwide programs against another for example, to exchange local regional programs. If the local program is only broadcast on one station, is an exchange directly at the level of the sender supplied MPEG-2 transport stream packets possible (MPEG: Motion Pictures Experts Group, world standard for Source coding of video and audio signals according to ISO / IEC 13818). However, if the local program is like the original nationwide programs on several channels of a so-called If the same wave network is to be broadcast, the Keying in at the level of the transport stream packages be synchronized. In a usual DVB The MPEG transport stream is from a single-frequency network central point fed from the individual transmitters and so ensured that all stations synchronized the program radiate. If one or more of the nationwide Programs replaced by one or more local programs this synchronicity in the DVB- Single-wave network can be guaranteed. So far thereby achieved that the local program to be faded in from a central point in a part of the Broadcasting area working local channels is supplied. The creation of this central entry point for the local program means high costs in terms of Supply lines and a remultiplexer.
Es ist daher Aufgabe der Erfindung, ein Verfahren und eine Anordnung aufzuzeigen, mit dem bzw. der auf einfache und preiswerte Weise solche Lokalprogramme anstelle von landesweiten Programmen in DVB-Gleichwellennetzen eingeblendet werden können. It is therefore an object of the invention, a method and a Show arrangement with which on the simple and cheap such local programs instead of nationwide programs in DVB single-frequency networks can be displayed.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 bzw. die Merkmale des Anspruchs 5 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen. This object is achieved by the features of claim 1 and solved the features of claim 5. advantageous Further training results from the subclaims.
Die Erfindung geht aus von der Erkenntnis, daß der Nachteil des erhöhten Aufwandes für die Signalzuführung vermieden werden kann, wenn dafür gesorgt wird, daß alle für den Austauschvorgang benötigten Programme jeweils an den Standorten der einzelnen Sender, an denen ein Austausch durchgeführt werden soll, zur Verfügung stehen. Dies ist beispielsweise der Fall, wenn sowohl das landesweite als auch das lokale Programm über Satellit den einzelnen Sendern zugeführt wird. Eine andere Möglichkeit besteht darin, daß die einzelnen Sender eines Ballungsraumes, über welche ein Lokalprogramm abgestrahlt werden soll, unmittelbar über Leitungen, beispielsweise Glasfaserverbindungen, mit dem Studio des Lokalprogramms verbunden sind und so die Sender des landesweiten DVB-Gleichwellennetz, die im Ballungsraum das Lokalprogramm abstrahlen sollen, sowohl die landesweiten als auch die lokalen Programme zur Verfügung haben. Es ist dann nur noch erforderlich, im Sinne der Erfindung die Transportstrompakete des auszublendenden und zu ersetzenden landesweiten Programms durch die Transportstrompakete des lokalen Programms an jedem der Sender des Ballungsraumes synchronisiert zu ersetzen. The invention is based on the knowledge that the disadvantage the increased effort for the signal supply avoided can be, if it is ensured that all for the Exchange process required programs to the Locations of each transmitter where an exchange should be carried out. This is for example, when both the nationwide and also the local program via satellite to the individual stations is fed. Another possibility is that the individual stations of a metropolitan area, via which one Local program to be broadcast immediately above Lines, for example fiber optic connections, with the Studio of the local program are connected and so the transmitter of the nationwide DVB single-frequency network operating in the metropolitan area to broadcast the local program, both nationwide as well as the local programs. It is then only necessary in the sense of the invention Transport stream packages of the to be hidden and replaced nationwide program through the transport stream packages of the local program on each of the metropolitan broadcasters to replace synchronized.
Der beim erfindungsgemäßen Verfahren benutzte sogenannte Continuity-Count (CC) ist Bestandteil des oben erwähnten MPEG-Standards und wird dort näher erklärt und definiert. Dieser Continuity-Count zählt jeweils kontinuierlich die Datenpakete jedes Teil-Datenstroms (identifiziert durch den Paket-Identifier PID). Der für die Synchronisierung des Gleichwellennetzes erforderliche Standard für DVB (TS 101190) definiert Mega-Frames, in welche der insgesamt zu übertragende Transportstrom unterteilt ist. The so-called used in the inventive method Continuity Count (CC) is part of the above MPEG standards and is explained and defined in more detail there. This continuity count continuously counts the Data packets of each sub-data stream (identified by the Package identifier PID). The one for the synchronization of the Commonwave network required standard for DVB (TS 101190) defines mega frames in which of the total to transmitting transport stream is divided.
Gemäß der Erfindung wird der bisher nur im Empfänger und sonst zu Kontrollzwecken ausgenutzte Continuity-Count für die Synchronisation der ein- und auszublendenden Programme benutzt und dadurch wird eine zentrale Einspeisestelle für die Sender des Lokalprogrammes überflüssig. According to the invention, the so far only in the receiver and continuity count otherwise used for control purposes the synchronization of the programs to be shown and hidden used and thereby a central feed point for the channels of the local program superfluous.
Die einzutastenden Lokalprogramme (typisch Video, Audio und andere Daten) besitzen im allgemeinen eine Datenrate, die etwas geringer ist als die Datenrate der ausgetasteten landesweiten Programme. In diesem Fall hat es sich als vorteilhaft erwiesen, innerhalb eines Mega Frames die fehlenden Datenpakete des lokalen Programms durch Nullpakete zu ersetzen. The local programs to be keyed in (typically video, audio and other data) generally have a data rate that is slightly lower than the data rate of the blanked nationwide programs. In this case it turned out to be proven to be beneficial within a mega frame missing data packets of the local program due to zero packets to replace.
Die Erfindung wird im folgenden anhand schematischer Zeichnungen an einem Ausführungsbeispiel näher erläutert. In der Zeichnung zeigen: The invention will now be described more schematically Drawings explained in more detail using an exemplary embodiment. In the drawing shows:
Fig. 1 das Prinzipschaltbild einer Einrichtung zum Einblenden eines Lokalprogramms und Fig. 1 shows the basic circuit diagram of a device for showing a local program and
Fig. 2 das Schema des Continuity-Count-Vergleichs. Fig. 2 shows the scheme of the continuity count comparison.
Fig. 1 zeigt das Prinzipschaltbild einer Einrichtung zum Einblenden eines Lokalprogramms TS2 in einen landesweit über ein DVB-Gleichwellennetz abgestrahlten Datenstrom TS1, der typisch mehrere Programme enthält. Diese Einrichtung ist Bestandteil eines Senders, über den eine synchrone Einblendung eines Lokalprogramms durchgeführt werden soll und dem einerseits der ursprüngliche landesweite Transportstrom TS1 als aufbereiteter MPEG2-Transportstrom als auch das Lokalprogramm als MPEG2-Transportstrom TS2 zugeführt wird. Über Paketidentifizierungsfilter PID werden aus diesem Transportstrom jeweils die einzelnen Programme ausgefiltert und über ein MIP-Filter die Mega-Frame- Informationen. Für diejenigen landesweiten Programme, die ersetzt werden sollen, wird ein Continuity-Count CC1 durchgeführt. Der MPEG-Transportstrom TS2 der einzufügenden lokalen Programme wird ebenfalls einem Continuity-Count CC2 unterworfen, das Ergebnis wird für jeden Teil-Datenstrom des Lokalprogramms getrennt bestimmt. Die Teil-Datenströme der Lokalprogramme werden in einem Pufferspeicher 4 gespeichert. Wenn in der Synchronisationseinrichtung 5 festgestellt wird, daß der Continuity-Count CC1 für einen Teil-Datenstrom gleich groß wie der entsprechende Continuity-Count CC2 ist, erfolgt in der Einblendeinrichtung 6 der Ersatz der Datenpakete des jeweils ausgewählten Teil-Datenstroms des Transportstromes TS1 durch die Datenpakete des Transportstromes TS2. Nach der Korrektureinrichtung 8 wird der so erzeugte neue mit einem Lokalprogramm ergänzte Transportstrom TS1' über den lokalen Sender abgestrahlt. Fig. 1 shows the basic circuit diagram of a device for superimposing a local program TS2 in a nationwide via a DVB-frequency network radiated data stream TS1, which typically contains several programs. This device is part of a transmitter via which a local program is to be displayed synchronously and to which the original country-wide transport stream TS1 as processed MPEG2 transport stream and the local program as MPEG2 transport stream TS2 are supplied. The individual programs are filtered out of this transport stream via packet identification filter PID and the mega-frame information via a MIP filter. A continuity count CC1 is carried out for those nationwide programs that are to be replaced. The MPEG transport stream TS2 of the local programs to be inserted is also subjected to a continuity count CC2; the result is determined separately for each partial data stream of the local program. The partial data streams of the local programs are stored in a buffer memory 4 . If it is determined in the synchronization device 5 that the continuity count CC1 for a partial data stream is the same size as the corresponding continuity count CC2, the data packets of the respectively selected partial data stream of the transport stream TS1 are replaced in the fade-in device 6 Data packets of the transport stream TS2. After the correction device 8 , the new transport stream TS1 'thus supplemented with a local program is emitted via the local transmitter.
Die in Fig. 1 gezeigte Zusatzeinrichtung eines Senders wertet also den Continuity-Count CC der Teil-Datenströme, die in den Transportströmen TS1 und TS2 enthalten sind, aus und ersetzt jeweils die Transportstrompakete des auszublendenden Programms durch diejenigen des lokalen Programms, wenn diese denselben Wert im Continuity-Count aufweisen. Diese Prozedur wird für jede PID (Packet Identifier, Programmkennung), die zu dem entsprechenden Service gehört, separat durchgeführt. Sie ist deshalb nicht auf eine bestimmte Anzahl von Programmen beschränkt. The additional device of a transmitter shown in FIG. 1 thus evaluates the continuity count CC of the partial data streams that are contained in the transport streams TS1 and TS2, and replaces the transport stream packets of the program to be hidden by those of the local program, if these have the same value have a continuity count. This procedure is carried out separately for each PID (packet identifier, program identifier) belonging to the corresponding service. It is therefore not limited to a specific number of programs.
Der Zwischenspeicher, der die Transportstrompakete des Lokalprogramms entsprechend verzögert, hat eine Tiefe von jeweils 16 Transportstrompaketen (der Continuity-Count zählt Modulo 16). Bei einer Video-Datenrate von 3 Mb/s (entsprechend ca. 2000 Transportstrompaketen pro Sekunde) ist auf diese Weise ein Synchronisierung in einem Zeitfenster von bis zu ca. 8 ms gewährleistet. Bei Audio- Strömen ist dieses Zeitfenster wegen der niedrigen Anzahl der Transportstrompakete pro Sekunde noch wesentlich größer. The cache that stores the transport stream packets of the Local program delayed accordingly has a depth of 16 transport stream packets each (the continuity count counts Modulo 16). At a video data rate of 3 Mb / s (corresponding to approx. 2000 transport stream packets per second) is in this way a synchronization in one Time window of up to approx. 8 ms guaranteed. With audio Streaming is this time window because of the low number the transport stream packets per second even larger.
Da die Synchronisierung eines DVB-Gleichwellennetzes ohnehin auf einen Bruchteil einer Millisekunde genau sein muß, ist die Größe dieses Zeitfensters mehr als ausreichend für das beschriebene Verfahren. Die Information über die Zeitbasis (über PGS) und die individuell eingestellte Verzögerung des Modulators liegt an jedem Sendestandort ohnehin vor und wird bei der Synchronisierung der Eintastung entsprechend berücksichtigt. Since the synchronization of a DVB single-frequency network anyway must be accurate to a fraction of a millisecond the size of this time window is more than sufficient for that described method. The information about the time base (via PGS) and the individually set delay of the Modulators are already available at every broadcasting location when synchronizing the keying accordingly considered.
Fig. 2 zeigt das Schema des Continuity-Count-Vergleichs jeweils eines Teil-Datenstroms der Transportströme TS1 und TS2 und den Ersatz von fehlenden Datenpaketen des einzublendenden Transportstroms TS2 durch Nullpakete, wie dies erforderlich ist, wenn die Datenrate des einzublendenden Transportstroms TS2 pro Mega-Frame geringer ist als die Datenrate des auszublendenden Transportstromes TS1. Fig. 2 shows the scheme of the continuity count the comparison shows a respective part-stream of the transport streams TS1 and TS2, and the replacement of missing data packets of the einzublendenden transport stream TS2 by null packets, as is required when the data rate of the einzublendenden transport stream TS2 per mega Frame is less than the data rate of the transport stream TS1 to be hidden.
Der Beginn der Eintastung wird so eingestellt, daß er mit Beginn eines Megaframes zusammenfällt. Die Buffer 4 werden zu diesem Zeitpunkt auf Null gesetzt. Für das erste zu ersetzende Datenpaket eines Teildatenstroms (PID = K1) im TS1 hat der CC1-Zähler einen Wert N1. Die Eintastung erfolgt dann durch Ersetzen dieses Datenpakets (PID = K1, CC1 = N1) durch das entsprechende Datenpaket aus dem Teildatenstrom (PID = K2) aus dem TS2 mit demselben Wert CC2 = N1. The start of keying is set so that it coincides with the start of a megaframe. The buffers 4 are set to zero at this time. The CC1 counter has a value N1 for the first data packet to be replaced in a partial data stream (PID = K1) in TS1. The keying is then carried out by replacing this data packet (PID = K1, CC1 = N1) with the corresponding data packet from the partial data stream (PID = K2) from the TS2 with the same value CC2 = N1.
Am Ende des Megaframes hat der CC1-Zähler für PID = K1 den Wert CC1 = N2. Im nächsten Megaframe beginnt die Eintastung dann mit CC1 = N2 + 1 für PID = K1. At the end of the megaframes, the CC1 counter for PID = K1 has the Value CC1 = N2. The keying begins in the next mega frame then with CC1 = N2 + 1 for PID = K1.
Hat der Teildatenstrom K2 genau die gleiche Datenrate wie der Teildatenstrom K1, so ist auch der Wert CC2 = N2 + 1 für das erste Datenpaket im nächsten Megaframe. Has the partial data stream K2 exactly the same data rate as the partial data stream K1, so is the value CC2 = N2 + 1 for that first data packet in the next mega frame.
Ist die Datenrate von K2 jedoch geringer als die von K1, so wird aus den Informationen über den Stand des Buffers 4 abgeleitet, wieviele Nullpakete eingetastet werden müssen, um den Unterschied der Datenraten auszugleichen. Dieser Vorgang erfolgt mit demselben Algorithmus und demselben Startwert an allen betroffenen Standorten. However, if the data rate of K2 is lower than that of K1, the information about the status of the buffer 4 is used to derive how many zero packets have to be keyed in to compensate for the difference in the data rates. This process takes place with the same algorithm and the same starting value at all affected locations.
Sind zum Beispiel A Nullpakete (AnzNP = A) nötig, so werden die letzten A Datenpakete in K1 vor dem Ende des ersten Megaframes (CC1 = N2 - A + 1 bis CC1 = N2) durch Nullpakete ersetzt. Das letzte Datenpaket in K2 im ersten Megaframe hat dann den CC2-Wert CC2 = N2 - A. Die Information über die Anzahl der eingetasteten Nullpakete (AnzNP = A) wird dann benutzt, um den lückenlosen Anschluß bei der Eintastung zu gewährleisten, indem im nächsten Megaframe in K1 das Datenpaket CC1 = N2 + 1 durch das Datenpaket CC2 = N2 - A + 1 aus K2 ersetzt wird. For example, if A zero packets (AnzNP = A) are required, then the last A data packets in K1 before the end of the first Megaframes (CC1 = N2 - A + 1 to CC1 = N2) replaced by zero packets. The last data packet in K2 in the first mega frame then has the CC2 value CC2 = N2 - A. The information on the number of keyed zero packets (AnzNP = A) is then used to the to ensure seamless connection when keying in, by the data packet CC1 = N2 + 1 in the next megaframe in K1 is replaced by the data packet CC2 = N2 - A + 1 from K2.
Dieser Vorgang läuft für jeden Megaframe für die gesamte Dauer der Eintastung. Bei Störungen erkennt die Einrichtung anhand der Informationen aus den Continuity-Counts CC1 und CC2, wann eine neue Synchronisierung nötig ist. This process runs for every mega frame for the whole Duration of keying. The facility detects any faults based on information from continuity counts CC1 and CC2, when a new synchronization is necessary.
Claims (5)
mit einer Einrichtung (1) zum Trennen der landesweit auszustrahlenden Programme (TS1) nach deren Programmkennung (PID),
einer Einrichtung (2) zum Bestimmen des Continuity-Count (CC1) für einen Teil-Datenstrom der Transportstrompakete der landesweit auszustrahlenden Programme,
einer Einrichtung (3) zum Bestimmen des Continuity-Count (CC2) für einen Teil-Datenstrom der einzublendenden Lokalprogramme (TS2) mit einem nachfolgenden Zwischenspeicher (4) zum Verzögern der Transportstrompakete dieser Lokalprogramme,
einer Synchronisationseinrichtung (5), in welcher die Continaity-Counts (CC1 und CC2) verglichen werden, und einer Einblendeinrichtung (6), durch welche anstelle der Transportstrompakete eines auszublendenden landesweiten Programms die Transportstrompakete des einzublendenden Lokalprogramms in den MPEG-Transportstrom des Senders eingetastet werden. 5. Arrangement for carrying out a method according to one of the preceding claims,
with a device ( 1 ) for separating the programs to be broadcast nationwide (TS1) according to their program identifier (PID),
a device ( 2 ) for determining the continuity count (CC1) for a partial data stream of the transport stream packets of the programs to be broadcast nationwide,
a device ( 3 ) for determining the continuity count (CC2) for a partial data stream of the local programs (TS2) to be inserted with a subsequent buffer ( 4 ) for delaying the transport stream packets of these local programs,
a synchronization device ( 5 ), in which the continaity counts (CC1 and CC2) are compared, and a fade-in device ( 6 ), by means of which the transport stream packets of the local program to be faded out are keyed into the MPEG transport stream of the transmitter instead of the transport stream packets of a country-wide program ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001139069 DE10139069B4 (en) | 2001-08-09 | 2001-08-09 | Method and arrangement for regional display of local programs in a DVB common wave network |
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| Application Number | Priority Date | Filing Date | Title |
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| DE2001139069 DE10139069B4 (en) | 2001-08-09 | 2001-08-09 | Method and arrangement for regional display of local programs in a DVB common wave network |
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| DE10139069A1 true DE10139069A1 (en) | 2003-02-27 |
| DE10139069B4 DE10139069B4 (en) | 2006-02-16 |
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| EP1747681A1 (en) * | 2004-05-04 | 2007-01-31 | Qualcomm, Incorporated | Method and apparatus for programming blackout and retune |
| WO2007051478A1 (en) * | 2005-11-01 | 2007-05-10 | Technische Universität Braunschweig | Method for radio broadcasting a plurality of different information offers, and transmission and reception device therefor |
| GB2418803B (en) * | 2004-09-30 | 2008-02-06 | Radioscape Ltd | Emergency message transmitter system and related method |
| EP1943847A2 (en) * | 2005-10-24 | 2008-07-16 | General Instrument Corporation | Method and apparatus for generating multiplexed signals |
| FR2926691A1 (en) * | 2008-06-30 | 2009-07-24 | Thomson Licensing Sas | Data broadcasting method for single frequency network, involves detecting missing or false data packets, and intercalating dummy data packets between data packets to complement data frames |
| EP2120375A2 (en) * | 2008-05-13 | 2009-11-18 | Electronics And Telecommunications Research Institute | Method for Providing Area-Based Broadcasting Service Using Digital Mutlimedia Broadcasting, and Apparatus and Method for Receiving Area-Based Broadcasting Service according to the same |
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| WO2006035242A3 (en) * | 2004-09-30 | 2006-06-08 | Radioscape Ltd | Method and system for trasmitting emergency messages into a region such as a tunnel or a bridge |
| GB2418803B (en) * | 2004-09-30 | 2008-02-06 | Radioscape Ltd | Emergency message transmitter system and related method |
| WO2006035242A2 (en) | 2004-09-30 | 2006-04-06 | Radioscape Limited | Method and system for trasmitting emergency messages into a region such as a tunnel or a bridge |
| US8275003B2 (en) * | 2005-10-24 | 2012-09-25 | General Instrument Corporation | Method and apparatus for generating multiplexed signals |
| EP1943847A2 (en) * | 2005-10-24 | 2008-07-16 | General Instrument Corporation | Method and apparatus for generating multiplexed signals |
| EP1943847A4 (en) * | 2005-10-24 | 2010-01-13 | Gen Instrument Corp | Method and apparatus for generating multiplexed signals |
| WO2007051478A1 (en) * | 2005-11-01 | 2007-05-10 | Technische Universität Braunschweig | Method for radio broadcasting a plurality of different information offers, and transmission and reception device therefor |
| EP2030449B1 (en) * | 2006-06-20 | 2017-09-06 | Tdf | Method of inserting at least one component into a digital stream, corresponding inserting device and computer program product |
| EP2120375A2 (en) * | 2008-05-13 | 2009-11-18 | Electronics And Telecommunications Research Institute | Method for Providing Area-Based Broadcasting Service Using Digital Mutlimedia Broadcasting, and Apparatus and Method for Receiving Area-Based Broadcasting Service according to the same |
| FR2926691A1 (en) * | 2008-06-30 | 2009-07-24 | Thomson Licensing Sas | Data broadcasting method for single frequency network, involves detecting missing or false data packets, and intercalating dummy data packets between data packets to complement data frames |
| FR2937489A1 (en) * | 2008-10-17 | 2010-04-23 | Tdf | METHOD AND DEVICE FOR MODIFYING THE FLOW OF A DATA STREAM, METHOD AND DEVICE FOR BROADCASTING A DATA STREAM, CORRESPONDING COMPUTER PROGRAMS |
| WO2010043634A1 (en) * | 2008-10-17 | 2010-04-22 | Tdf | Modification of the throughput of a data stream broadcast in a monofrequency network |
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