JP2000278663A - Broadcasting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system that can efficiently distribute music via a satellite by a synchronized broadcasting service. SOLUTION: In this broadcasting system, an edit server 150 and a program edit terminal 152 conduct management, verification and timing adjustment of a music source and a picture being a source to edit a program. An MHEG management server 162 and an MHEG authoring terminal 164 conduct processing to generate a graphic image. A storage server 102 receives and stores data required for broadcasting from the edit server 150 and the MHEG management server 162. A data converter 103 converts data of the music source from the storage server 102 into data of a required form such as MUSICA and ATRAC. Transmission sub-systems 104a, 104b, 106a, 106b, 109a, 109b-112a, 112b, 118a, 118b encode and transmit sound source data, graphic image data and main video data converted into the form of MUSICA and ATRAC.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting system suitable for use in a broadcasting system in which digital data such as music and computer programs is distributed using satellites by a synchronous broadcasting service.

[0002]

2. Description of the Related Art Television broadcasting has started with terrestrial waves as a transmission medium, and has since expanded to cables, satellites and transmission media. The modulation method has been used for a long time in an analog method. However, recently, MPEG (Moving Pic)
Television broadcasting is about to change to a digital system in all transmission media, such as satellites, cables, and terrestrial waves, due to the establishment of a digital band compression technology represented by a system such as a network expert. In analog television broadcasting, attempts have been made to increase transmission efficiency by combining with band compression technology, but it has not been widely used. In contrast, band compression technology in digital television broadcasting has been rapidly developed in recent years because it has become possible to obtain extremely high transmission efficiency.

One example is satellite television broadcasting. The transmission band of one transponder (repeater) of a general broadcasting satellite or communication satellite is 27 MHz. When an SDTV (Standard Definition TV) is transmitted by analog FM modulation using this transponder, only one television broadcast can be relayed practically. But the same 27M
Hz with a transponder with a transmission band of
In the case of transmission by PSK (Quadrature Phase Shift Keying) modulation, the capacity for information transmission can be secured at about 24 Mbps (depending on the line design) even if redundancy such as control codes is subtracted. For this reason, when the SDTV is digitally compressed to 4 Mbps by the MPEG2 system, it is possible to relay 6-channel television broadcasts.

[0004] Similarly, digital music signals can be obtained with a higher transmission efficiency by being combined with a band compression technique. Therefore, using the digital method,
Music broadcasts can be performed efficiently as well. When information is compressed to 192 kbps using MPEG (in this case, MPEG1 Layer 2 = MUSICAM, hereinafter referred to as MUSICAM system) with an information transmission capacity of 24 Mbps using the same satellite band, 1
The transponder can relay 125-channel audio broadcasts.

[0005] Further, in the digital system, there is an advantage that the quality of the transmission side can be faithfully transmitted by being combined with an error correction technique, almost without being affected by distortion in the transmission path.

As digital broadcasting combined with band compression technology and error correction technology has become mainstream, new forms of broadcasting services can be created by broadcasting digital data other than video and audio. It has become to. One is called independent data broadcasting,
For example, it broadcasts a game program of a personal computer, and broadcasts only data. The other is a synchronous data broadcast in which a video program or a music program is linked to a data broadcast. This synchronous data broadcasting is M
HEG (Multimedia and Hyper Information Coding Ex
GUI (Graphics Use) represented by the perts Gruop method
r Interface), and broadcasts data synchronized with the service while watching a video or music program.

The applicant of the present application has proposed an EMD service as a service of such a synchronous data broadcasting. A system for distributing music data electronically is collectively called an EMD (Electric Music Distribution) service, and the broadcasting system is called an EBS (EMD Broadcasting Syst
em). The outline of the EBS service is as shown in FIG.

[0008] This allows music to be downloaded and purchased while watching television on a music distribution channel using satellites. First, the receiver (IRD: Integra
When this EMD channel is selected with the tedReceiver Decoder, an image appears as shown in FIG. A video (moving image) is displayed on a part of the screen shown in 501 and a GUI screen (generally a still image) using MHEG appears in a surrounding part 502. The image on the screen 501 is called a main image. In the conventional IRD that cannot receive the new service, only the screen 501 is displayed on the screen. The reproduced sound at this time is a sound accompanying the main video and is called a main sound. This MHEG GUI
At this time, a list 503 of ten songs that can be purchased by the IRD is displayed on the screen. Further, information 504 including images, lyrics, and other texts for each music is displayed.

[0009] The viewer knows information of music that can be purchased while watching the program. In general, the main video program is often related to the music to be sold, and for example, the program frame of the EPG (Electric Program Guide) is one hour and is “the best 20 songs of the week”. In this 30 minutes, 10 songs from the 20th to 11th places of the week are introduced, and in the latter half 30 minutes, the 10th to 1st places in the week are introduced. Viewers can watch the main video and preview the music they want to purchase. That is, the music is reproduced by the IRD by pointing the location corresponding to the music in the GUI with the pointer of the IRD, and the listening for a certain period of time is possible. Furthermore, music can be downloaded at the same time during the trial listening period. Images, lyrics, and text data are also displayed. Purchase (download) of music is performed by clicking a button 505 in FIG.

There are two methods for purchasing (downloading) music. One is to record music in real time using an analog terminal or a PCM (Pulse Code Modulation) digital terminal using a tape recorder or DAT (Digital Audio Tape).
Recoder), MD (Mini Disc), etc. Purchase (download) music in this case
The procedure is as follows.

1. Connect the recording device to the IRD and wait in the recording standby state.

2. Perform purchase procedure on the GUI screen of IRD.

3. Know the timing until music starts on the IRD GUI screen.

4. While watching the timing, set the recording device to the recording state just before the music starts.

As described above, the analog terminal or PCM (Puls
When recording using a digital terminal of e Code Modulation), recording is generally performed on a normal recording device, so recording is performed in real time (4 minutes of music is 4 minutes). When downloading to a recording device having a double speed dubbing function, it is also possible to record at double speed (4 minutes of music is 2 minutes).

Another method is to download to a recording device having an interface terminal which can be controlled by each other, for example, an interface terminal of IEEE-P1394 standard (in this case, not only a music device such as an MD but also a device such as a PC). It is. The music purchase (download) procedure in this case is as follows.

1. Connect the recording device to the IRD and wait in the recording standby state.

2. Perform purchase procedure on the GUI screen of IRD.

3. Recording timing is automatically recorded by this interface.

The feature of this method is that the music can be downloaded according to the data format of the recording destination without decoding the music to the baseband. Further, by transmitting the music as data, the music can be transmitted at a transmission speed not related to the real time of the music. It is possible to download. For example, ATRAC (Adaptive Transform Acousti) which is an MD recording method
c Coding) Without decoding the recording method data,
Download RAC data. The data transmission speed is about 4 times speed (4 minutes of music is 1 minute), and music can be purchased in a short time.

At the same time, JPE
Download images, lyrics, and text data from G (Joint Photographic Experts Group). Also,
All of the data other than the music has a timing signal synchronized with the music, so that presentation can be made in time with the music. One example is lyrics, and the characters can be displayed in time with the music.

FIG. 5 shows the component structure of the EMD service. As shown in FIG. 5, the EMD service has a concept of a main service and a sub service. The main service consists of four components (TV
Video, TV audio, MHEG data for GUI, MH for reservation
EG data), and music can be selected by directly inputting a channel number from an IRD remote controller.

The four components collectively form one E
It is enclosed by a CM (Entitlement Control Message), and the viewing format is a FLAT contract. The unit of the event is the same as the unit of the EPG, and is one hour in this example. MHEG for GUI as in the first and second half within one hour
Can be changed, but the event ID of the main service does not change. The MHEG data for reservation provides a GUI for making a purchase reservation for music scheduled to be broadcast within the next week. Display contents are updated once a day.

The sub service is a music download service, for example, a maximum of 10 services. NIT (Netw
This service ID is not included in the orkInformation Table. Also, it is not possible to select music directly from the remote control of the IRD.

As shown in FIG. 6, the component configuration and PID (Packet ID) of the sub service are SMT (Sub-P
rogram map table (PMT)
) Is described in the same format table. The PID of the SMT is the linkage_desc in the PMT of the main service.
Described in riptor ().

The following three components belong to the sub service.

1. 1. MPEG Audio data (for music preview / purchase. 1x speed) 2. ATRAC data (for downloading music. 4x speed) Audio additional information MPEG audio data and ATRAC data are grouped together in one ECM, and the viewing format is IPPV.
(Impulse Pay Per View). The unit of the ECM is not the unit of the EPG (1 hour) but may be, for example, a unit obtained by dividing the unit into the first half and the second half (30 minutes in this case). The audio additional information is non-scrambled. The information about the elapsed time of the music flows in the audio additional information so that the time information can be read before the purchase.

As shown in FIG. 5, the same music is repeatedly played in one event. Since the number of sub-services is, for example, a maximum of ten, the number of music pieces that can be played in one event is a maximum of ten. Therefore, 20 songs can be played in one event (one hour).

Once purchased, the key is kept open during the event (30 minutes in this case), so that the same song can be downloaded many times at the price of one song. So the same song
The receiver has a function that can be downloaded only once.

[0030]

As described above, in order to realize an EMD service such as music distribution using satellite broadcasting, a system capable of efficiently organizing program materials, a program material for broadcasting, Systems that hold data,
A conversion system for converting PCM data to data in the MUSICAM or ATRAC format, and components for performing main services (TV video, TV audio, GUI MHE)
It is necessary to construct G data, MHEG data for reservation), and components (MPEGAudio data) and ATRAC data for performing a sub service. In addition, a system for storing broadcast data is required. Further, there is a need for a system that monitors each signal of a broadcasted program and issues a warning when an abnormality occurs. Further, there is a need for a system that appropriately charges a user who downloads music data.

Accordingly, it is an object of the present invention to provide a system capable of efficiently performing digital data such as music and computer programs using satellites by a synchronous broadcasting service.

[0032]

According to a first aspect of the present invention, there is provided a knitting means for organizing a program based on first material data and second material data, and a graphic screen for performing processing for forming a graphic screen. Forming means, holding means for transferring necessary first material data and second material data from the knitting means, and data for converting the first material data from the holding means into data of a required format Converting means, the first material data, the graphic screen data, and the second
And a transmitting means for transmitting the first material data, and the first material data and the second material data are linked by the data of the graphic screen to broadcast.

According to a fourteenth aspect of the present invention, material data,
A knitting means for organizing a program with data accompanying the material data, material means necessary for broadcasting from the knitting means and holding means for transferring and holding data accompanying the material data, and material from the holding means Data conversion means for converting data into data in a required format, data providing screen forming means for performing processing for forming a screen for providing a user with material data converted into a required format, and data conversion means A broadcasting system comprising: material data converted into an appropriate format; data accompanying the material data; and a transmitting unit for transmitting data of a data providing screen.

According to a twenty-fifth aspect of the present invention, there is provided a knitting means for organizing a program by using material data and data accompanying the material data, and transferring material data necessary for broadcasting and data accompanying the material data from the knitting means. Holding means held and held, data conversion means for converting the material data from the holding means into data of a required format, material data converted to a required format by the data conversion means, and data attached to the material data Empty with the sending means to send the data,
This is a broadcasting system that performs synchronous data broadcasting by linking the material data converted into a required format and data accompanying the material data.

According to a thirty-sixth aspect of the present invention, there is provided a knitting means for organizing a program using material data and data accompanying the material data, and the necessary material data and data accompanying the material data are transferred from the knitting means. Holding means to be held, data conversion means for converting the material data from the holding means into a required format, and provision for performing processing for forming a message for providing the user with the material data converted to the required format A broadcast system comprising: a message forming unit; material data converted into a required format by a data converting unit, data accompanying the material data, and a sending unit that sends a data providing message.

The program composition is performed at the composition terminal and transferred to the composition server. The composition server holds the music information and the composition data, and the interface file is transferred to the commissioned broadcaster NMD by the specified date before the broadcast. Music general information, image information, and lyrics information are registered in the sound source management system, and medium management of the music is performed. Content used in MHEG is transferred from the composition server to the MHEG management server.

In the MHEG management server, the MHEG template is received from the MHEG template consignment company, and the MHEG template is matched with the contents. Authoring of the MHEG is performed by the MHEG authoring system, and the main video is taken in and the transmission of the program is confirmed in advance.

The composition table from the composition server is sent to the possession server. As for the music material in the composition table, the material registration, the PCM material registration, the lyrics timing registration are performed by the material audition system, and the audition is further performed. Based on this composition table, the possession server converts the PCM data to the sound source conversion system using MUSI
Control is performed to convert the data into CAM format and ATRAC format data.

The holding server holds one week of program data such as a composition table and music data, and transfers the PCM music data whose broadcasting has been completed to the archive system. In the archive system, PCM music data is recorded in a large-capacity hierarchical management.

The video encoder inputs and encodes a video signal from a cart of a commissioned broadcaster. MUSICA
The M / ATRAC transmission server group receives the organization table from the possessed server, and according to the contents, the MUSICAM / ATR
The multiplexing / transmission of AC data and the multiplexing / transmission of voice additional data are performed. The PTS of the TS packet of the encoder and the audio signal is synchronized by the PTS synchronizer. MH
The EG data transmission server receives the composition table and performs multiplexing of packets and transmission of the DSM-CC system according to the contents.

The output of each sending server and PTS synchronizer is multiplexed by a primary multiplexing device, and is interfaced to an encoder chain of a contract broadcaster. The transmission monitoring system in the EBS system monitors transmission of MUSICAM voice, ATRAC data, and MHEG data.

[0042]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an EBS system 100 to which the present invention is applied.
The EBS system 100 to which the present invention is applied includes an archive subsystem, a holding subsystem, a sound source conversion subsystem, a transmission subsystem, a monitoring subsystem,
It is composed of subsystems consisting of an alarm subsystem, an organization subsystem, a business subsystem, and a GUI subsystem.

In FIG. 1, reference numeral 101 denotes an archive subsystem. The archive system 101 is a system for storing PCM music data in a large capacity. This is a recording apparatus 101a for physically managing a tape medium to be digitally recorded on a plurality of cassette tapes by a cart, and a hierarchical management server 101 for starting software for hierarchically managing the large-capacity files.
b.

The total recording capacity of the archive subsystem 101 is, for example, 5.4 terabytes, and the user recording capacity is 2.7 terabytes by performing full double recording. The purpose of double recording is to ensure that even if the recording medium (tape) is damaged,
This is to enable restoration with another recording medium. The capacity can be expanded by adding more carts in the future.
In the case of 16-bit, 48 kHz sampling, stereo music for 5 minutes, the information amount per song is 16 (bit) x 48 (kHz) x 2 (ch) x 60 (sec) x 5 (mi
n) ÷ 8 (bit) = 57.6 (Mbyte) 2.7 (Tbyte) ÷ 57.6 (Mbyte) = 46,875
(Songs) This is a capacity that can store about 50,000 songs.

The hierarchical management software of the hierarchical management server 101b manages most files efficiently. As described above, in order to access a file of as many as 50,000 songs, a file that may be frequently used is left on the local disk of the hierarchical management server 101b to obtain high accessibility. Conversely, files that are infrequently used are recorded on the tape of the recording device 101b,
b is deleted from the local disk. For tape management, the storage position on the cart is controlled from the tape drive according to the setting conditions.

Reference numeral 102 denotes a holding server that forms a holding subsystem. The holding server 102 includes a composition table, music material PCM data, and music material MUS necessary for program transmission.
ICAM format data, music material ATRAC format data,
The MHEG data is stored on the hard disk for about one week in the future including the day. MUSICAM, A after the broadcast
The TRAC and MHEG data are deleted, and the PCM data is deleted from the hard disk of the possession server 102 after being stored in the archive system 101. The PCM data transferred to the archive system 101 can be reused later.

When the holding server 102 stops, the music material registration work stops, and the sound source conversion processing also stops in the transmission system processing, and the program cannot be changed. ing. In the event of a hardware failure of the possession server 102, it automatically switches to the standby server within a few minutes. Hard disks are RAID (Redundant Array of Inexpensive D) to ensure reliability.
isc) has a structure.

Since the archive system 101 is a large-scale device, it does not support duplication. Recording device 101
If a fails or the hierarchical management server 101b goes down due to a hardware error, it takes time to recover. For this reason, even if the archive system 101 is in a stopped state for a long time, the holding server 102 can operate for about one week so as not to hinder the program transmission, organization and registration work.

Reference numeral 103 denotes a data conversion device constituting a data conversion subsystem. This data converter 103 is an ATRAC / MUSICAM encoder. The data conversion device 103 receives a PCM data file on the possession server 102 according to an instruction from the possession server 102 transmitted via the SCH LAN 131, and
The data is converted into TRAC format data and MUSICAM format data and output to the possession server 102. Data conversion device 10
The number of encoders required in 3 is determined by the conversion speed of the encoder and the amount of music material to be broadcast. In this example, there are five units. The ATRAC / MUSICAM encoders of the holding server 102 and the data conversion device 103 have a relationship of 1: 5, and the holding server 102 manages the order of the conversion processing and the state management of the ATRAC / MUSICAM encoder.

Reference numerals 104a and 104b denote video encoders, 1
06a and 106b are MUSICAM voice transmission servers, 1
08a, 108b to 112a and 112b are ATRAC data transmission servers, 118a and 118b are MHEG data transmission servers, and 120a and 120b are primary multiplexers.
22a and 122b are encoder and multiplexer controllers, and 123a and 123b are PTS synchronizers.
These constitute a transmission subsystem.

The video encoders 104a and 104b encode the main video and audio transmitted by the cart device 170 in the commissioned broadcaster 140. The control parameters of the encoder are as follows.

Audio mode (STEREO / BILINGAL) Event unit Bit rate Event unit.

The video encoders 104a and 104b are operated independently of each other in standby mode and standby mode.
Switching device 105 at the time of inspection for periodic maintenance
Can be switched immediately.

MUSICAM voice transmission server 106a,
106b is the composition data and MUS
The ICAM format audio data is obtained via the SCH LAN 131, and the MUSICAM audio transmission server 106a, 1
PES (Program Elemen)
Tary Stream), TS (Transport Stream) packetization, and multiplexing for 10 systems, and audio additional information packets of time information for cueing are multiplexed, and the TS output I / F board uses the TS packet stream (ASI: Asynchro).
nous Serial Interface).

The MUSICAM voice transmission server 106a,
By storing the organization / transmission data for the future three days including the current day on the hard disk 106b, transmission is guaranteed for three days even if the possessed server 102 goes down.
If the holding server 102 goes down, change information from the composition is not transmitted. MUSICAM voice transmission server 106
The switching devices 107a and 106b are operated independently and in standby and can be switched instantaneously by the switching device 107, for example, when a hardware failure occurs or when inspection is performed for periodic maintenance.

ATRAC data transmission server 108a, 1
08b to 112a and 112b acquire the organization data and the ATRAC format audio data for MD download from the possession server 102, and send the data to the inside of the transmission server 108a, 108b.
8b-112a, PES by software of 112b
, TS packetization, multiplexing for two systems, and TS at 4x speed
The output I / F board outputs TS packets (ASI). In this example, ATRAC data transmission server 1
08a, 108b to 112a, 112b
A system TS packet stream has been obtained.

ATRAC data transmission server 108a, 1
By storing the organization and transmission data for the future three days including the current day in the hard disks 08b to 112a and 112b, transmission is guaranteed for three days even if the possessed server 102 goes down. If the holding server 102 goes down, change information from the composition is not transmitted. The ATRAC data transmission servers 108a, 108b to 112a, 112b are currently used and operated independently of standby, and can be switched instantly by the respective switching devices 113 to 117 at the time of hardware failure, inspection for periodic maintenance, and the like. is there.

MHEG data transmission server 118a, 11
8b acquires the organization data and the MHEG transmission data from the holding server 102 via the SCH LAN 131, and uses the software in the transmission server to execute the DSM-CC (Digital
(Strage Media-Command and Control) format processing, forming TS packets and outputting them at a predetermined speed in a TS packet stream (ASI) by a TS output I / F board. MHE
G data is content MH for GUI for main video
EG data and MH for reservation to make reservation for one week
Since there is EG data, a TS packet stream (AS
I) is output in two systems.

MHEG data transmission servers 108a, 10
By storing the organization and transmission data for the future three days including the current day on the hard disk 8b, transmission is guaranteed for three days even if the possession server 102 goes down. If the holding server 102 goes down, change information from the composition is not transmitted. MHEG data transmission server 118a, 11
The switch 8b operates in a standby mode and a stand-by mode, and can be switched immediately by the switching devices 119x and 119y when a hardware failure occurs or when an inspection is performed for periodic maintenance.

The primary multiplexing devices 120a and 120b are the secondary multiplexing devices 18 in the limited broadcasting service provider 140.
In order to physically convert the signal interfaced to the input port 0 to one ASI signal, the video encoder 10
4a, 104b, MUSICAM audio transmission server 106
a, 106b, ATRAC data transmission server 108a,
The outputs of the 108b-112a, 112b and the MHEG data transmission servers 118a, 118b are multiplexed into a single transport stream. The multiplexed signal is supplied to the secondary multiplexing device 180 of the commissioned broadcaster 140 via the switching device 121 and the distributor (not shown). The primary multiplexing devices 120a and 120b are working,
The switching device 121 operates in a stand-alone and independent manner, and can be switched immediately by the switching device 121, for example, when a hardware failure occurs, or when an inspection is performed for periodic maintenance.

The controllers 122a and 122B include the video encoders 104a and 104b and the primary multiplexing device 1
20a and 120b, the initial settings of the primary multiplexing devices 120a and 120b and the video encoder 10
The audio modes 4a and 104b are controlled in event units, and the video encoders 104a and 104b and the primary multiplexing devices 120a and 120b collect alarms and the like.

The PTS synchronizers 123a and 123b are used to synchronize the video and the MUSICAM audio.
The value of S (Program Time Stamp) is changed.
The MPEG decoder in the IRD is one STC (System Ti
me Clock). For this reason, the video encoder 10
MUSICAM audio transmission server 10 while decoding the main video stream multiplexed in 4a and 104b.
To simultaneously decode the audio streams for viewing multiplexed in 6a and 106b, it is necessary to synchronize the PTS values. Therefore, the PTS synchronizers 123a and 123b
Reads the PCR (Program Clock Reference) value created by the video encoders 104a and 104b at
The PTS values created by the MUSICAM sending servers 106a and 106b are replaced with corresponding PTS values. P
The TS synchronizers 123a and 123b are in operation and stand-alone independent and operate. When a hardware failure occurs or when a check is performed for periodic maintenance, etc., the primary multiplexing device 1 by EMC is used.
Switching can be performed immediately by controlling the input ports of 20a and 120b.

Each output switching device 105, 107, 11
3, 114, 115, 116, 117, 119x, 11
9y, 121 are video encoders 104a, 104b,
MUSICAM audio transmission server 106a, 106b, A
TRAC data transmission server 108a, 108b to 112
a, 112b, MHEG data transmission server 118a, 1
18b, the primary multiplexing devices 120a and 120b are switched between the active and standby TS (ASI) outputs, respectively. These switching devices 105, 107, 113, 11
4, 115, 116, 117, 119x, 119y, 1
The hardware 21 is a simple toggle switching by a relay, and the contacts are held even when the power is turned off. Since the housing has a dual power supply and high reliability, the housing and the switch circuit are not duplicated. Control is controlled by a contact interface of a SWO (switchover) controller (SOC). In an emergency, it is also possible to switch directly on the front panel of the switching device.

Reference numerals 124a and 124b are transport stream monitor devices, and the transport stream monitor devices 124a and 124b constitute a monitoring subsystem. The main video and audio transmitted by the EBS system 100 and the output of the MUSICAM transmission server can be monitored by decoding. However, ATRAC, M transmitted by EBS system 100
For content that cannot be monitored visually or audibly, such as HEG data, monitoring at the transport stream (TS) level is required.

The following items are simultaneously monitored in real time by the transport stream monitor devices 124a and 124b.

Main video, video, audio, and MUS
Decoding of the output server output of the ICAM system. Check of TS packet continuity (Continuity Counter) and notification of alarm. Check of packet passing (transmission) interval and notification of alarm. Check of section CRC and notification of alarm.

The monitoring subsystem and the alarm subsystem will be described later in detail.

Reference numeral 150 denotes a composition server; 152, a program composition terminal; 153, a CD material management terminal; 154, a VTR material management terminal; 155 to 157, a sound source listening terminal;
The RAC / MUSICAM viewing terminal 159 is an OA monitor terminal. These constitute a knitting subsystem.

The composition server 150 stores all composition information in 1
Centralized management in two databases. The knitting server 150 sends a BDPS (Broadcast Data Processing System) file via the trunk LAN 133 to a facility NMD (Network Management Database) in the entrusted broadcaster 140.
) 151. The interface file is as follows.

Service Information File Event Information File Operation Data File Scheduling File

When the composition server 150 is stopped, the program composition,
Important functions such as material registration are stopped, it has a great impact on production work, there are many interfaces with the outside, and it is desirable that it is visible to one machine from the outside,
The hardware is duplicated by a cluster. In the event of a hardware failure of the organization server 150, it automatically switches to the standby server within several minutes. The hard disk has a RAID structure to ensure reliability.

The programming terminal 152 can receive the main service (main video) with a conventional receiver, and is treated in the same manner as other services (channels). NMD (Network Management Databas
e) The interface is the BDP within the contract broadcaster 140
It has exactly the same format as S. The sub-service cannot be received by the conventional receiver, and the EPG information is not registered because it is attached to the main service. CA (Condition
Access) information is set for both the main service and the sub service.

The components and service modes of each service are as follows.

Main service: FLAT contract Video1, Audio1, Data1 (MHEG data for GUI), Data1 (MHEG
for Scheduling)-Subservice # 1 to # 10: IPPV contract Audio1 (MUSICAM), Data1 (ATRAC), Data2 (Audio Informati
on).

The CD material management terminal 153 is a terminal for managing CD materials. Here, the medium of the CD is managed, and information accompanying the music such as title, artist, lyrics, etc. is input for each music, and the database is registered. The registration of the image in the JPEG format is also performed at the same time. Further, peripheral devices such as a form printer and a bar code printer are provided.

The VTR material management terminal 154 is a terminal for managing VTR materials. Here, the VTR media management is performed, and the database registration of information on the video material is performed. Furthermore, a form printer, a bar code printer, V
Peripheral devices such as a TR and a TV monitor are provided.

The sound source listening terminals 155 to 157 have a PCM sound source recording function, a PCM sound source listening function, a lyrics timing input function, and a sound source adjustment input function. Sound source listening terminal 155, 1
56 is a PCM sound source recording function, PCM
It has a sound source audition function and a lyrics timing input function. The sound source listening terminal 155 is located in the sound-insulating listening booth and has high-performance sound equipment. The sound source listening terminal 156 is arranged in a normal office space, and is suitable for performing a simple operation. The sound source listening terminal 157 is a special sound source listening terminal, has all functions including a sound source adjustment input function, is located in a listening booth, and has high-performance sound equipment.

The sound source listening terminals 155 to 157 search for music necessary for broadcasting, and read the external CD-RO from the corresponding CD.
The M drive drives PCM data at high speed as data without reproducing sound on the internal hard disk of the terminal. Then, the P once stored in the hard disk of the terminal
The CM music data is transferred to the possession server 102 via the SCH LAN 131 (PCM sound source recording function).

Depending on the sound source, such as the applause of live recording music, music that has no breaks or extremely different sound levels, and music that is inconsistent with other music, is played back once on a CD player and then played on a mixer or the like. PC after processing
M data is captured in real time. This work is performed by the special sound source listening terminal 157 (sound source adjustment input function).

[0097] The PCM sound source recording operation allows the possessed server 10
There is a possibility that the PCM music data stored in No. 2 may cause an error and the data is not taken in correctly, or a CD version may be set incorrectly. Therefore, the data is transferred to a hard disk in the terminal, the sound is reproduced, and it is checked over a real time whether the sound is correctly input (PCM sound source audition function).

Only the PCM music data that has been listened to by these sound source listening terminals 155 to 157 are transmitted by ATRA in the transmission system.
It can be converted to C / MUSICAM format data and broadcast. In addition, the sound source listening terminals 155 to 157 include:
The timing according to the music is input to the lyrics data stored in the composition server 150 by the CD material management operation (lyric timing input function).

ATRAC / MUSICAM listening terminal 15
Reference numeral 8 denotes a case where the data after conversion to the ATRAC / MUSICAM format is presumed to be abnormal before and after the broadcast, and before the possession server 102 deletes the data, the corresponding ATRAC or MUSICAM format data is stored in the possession server 102. Function to transfer the sound to the terminal and play the sound. Further, the ATRAC data has a function of copying to the MD.

The OA monitor terminal 159 has the ATRAC / M
This is a device for displaying the progress schedule of the USICAM data, and makes a presentation according to the time information of the terminal.

Reference numeral 160 denotes a billing server. Billing server 1
Reference numeral 60 denotes a business processing subsystem. Music content is IPPV (Impulse buy P
ay Per View). The ViewLog (VL) is recorded on the IC card of the IRD, and the SMS (Subscriber Management Sys
tem) 161 to collect fees from the customer. However, VL has a card ID and service I
D. Since there is only information of the event ID, a link with the copyright holder cannot be made. Therefore, the VL is obtained from the SMS 161 and the service ID, the event ID, and the link to the copyright holder are linked by the EBS charging server 160.

Reference numeral 162 denotes an MHEG management server, and 164 denotes M
The HEG authoring terminal 165 is a video input terminal. The MHEG management server 162, the MHEG authoring terminal 164, and the video input terminal 165 constitute a GUI subsystem.

The MHEG management server 162 constitutes a GUI construction subsystem. EBS system 100
It is assumed that the MHEG that forms the GUI of the IRD is created in advance using a basic type as a template. This template is delivered from an external contractor via the MHEG LAN 132 via the router 163, and enters the MHEG management server 162 once. Further, information necessary for program composition and content to be downloaded using MHEG are input from the composition server 150, and are linked to templates in the MHEG management server 162. Specifically, the information necessary for the program organization is, for example, a music title, which is linked to a hole in the template. One of the contents is JP
An EG image, which is arranged in a directory linked by MHEG.

The MHEG authoring terminal 164 transmits the MH
After the EG management server 162 fills the holes in the template with information, it has a function of processing and confirming the final design. For example, there is a hole in the title part, and the title is linked as information there, but that part is not considered in design. Therefore, a design is performed in consideration of the peripheral portion using an image processing tool or the like.

When a design linked to an image is performed by MHEG, it is necessary to load a main image on a computer. It is not necessary to capture a full moving image, and generally, a lower resolution and lower frame frequency may be used to reduce memory. The video input terminal 165 has this function. Furthermore, it has a function of checking the finally completed MHEG data together with the main video.

FIG. 2 shows details of the monitoring subsystem and the alarm subsystem. The numbers in FIG. 2 correspond to the numbers in FIG.

In FIG. 2, a video baseband signal is transmitted by a serial digital interface (SDI) and is divided into three by an SDI distributor 215. Two of them are input to each of the video encoders 104a and 104b.

The outputs of the video encoders 104a and 104b are of three ASI systems. The output of the first system is supplied to the switching device 105, the output of the second system is supplied to the patch 201 for signal check, and the output of the third system is supplied to the encoder monitor devices 202a and 202b. In FIG. 2, signal connection lines are indicated by labels.

MUSICAM voice transmission server 106a,
The output of 106b is two systems of ASI. The output of the first system is supplied to the switching device 107, and the output of the second system is supplied to the patch 201 for signal check. The PTS synchronizers 123a and 123b connect the output I / F board with 27
MHz clock is input.

ATRAC data transmission server 108a, 1
The outputs of 08b to 112a and 112b are two systems of ASI. The output of the first system is switched to each of the switching devices 113 to
117, and the output of the second system is supplied to a patch 201 for signal check.

MHEG data transmission servers 118a, 11
The output of 8b is four ASI systems. The output of the first system is supplied to the switching device 119x, the output of the second system is supplied to the switching device 119y, and the outputs of the third and fourth systems are supplied to the patch 201 for signal checking. 1st system and 3rd system
The system is the content MHEG for the main video GUI
Output a TS packet stream of data,
The fourth system is a reservation MHEG for making a reservation for one week.
It outputs a TS packet stream of data.

The outputs of the first-order multiplexers 120a and 120b are two systems of ASI. Switching system 120 for first system
a, 120b, and the second system is connected to the TS monitor 12
4a and 124b.

203 is a satellite receiving antenna, 204 is an IF
It is a signal distributor. A transport stream monitor device (TS monitor) 124c also monitors MUSICAM audio received from a satellite.

The transport stream monitor device 12
4c simultaneously decodes, for example, 10 systems of audio and supplies it to the switching console 215. The switching console 215 outputs the audio signal (On Air Sub Audio) of the satellite return, and the audio peak level display device 216a displays the peak levels of the ten systems.

[0098] The decoded video is displayed on the monitor television 212 by the receiver (IRD) 205, and the sound is supplied to the switching console 215. On the other hand, the transport stream monitor devices 124a and 124b simultaneously decode the audio of the main video and the audio of the eleven sub-system audios and supply the decoded audio to the switch 215.

In the switching console 215, the primary multiplexing device 1
The audio signals (MUX-A, B out Audio) of 20a and 120b are output, and the audio peak levels of 11 systems are displayed on the peak level display devices 216a and 216b, respectively.

The switching console 215 has a baseband SDI signal (audio output of the monitor television 209) input to the EBS system 100, an encoder monitor 202
The audio signals decoded at a and 202b are supplied.

The switching console 215 outputs these signals, the audio decoded by the receiver 205, and the main audio signal (Main Audio with Video) decoded by the transport monitor devices 124a and 124b, respectively, to output the peak level. The display device 220 displays the audio peak levels of the six systems, respectively.

Further, an arbitrary video supplied from the switching console 215 is selected and displayed on the waveform monitor 218, and an arbitrary supplied audio is selected and displayed on the XY monitor 219, and at the same time, the speaker 217 is used. Can monitor audio.

The main video signals reproduced by the TS monitor devices 124a and 124b are displayed on the monitor televisions 211 and 212 as primary multiplex device output confirmation videos, respectively.

The control of the TS monitor devices 124a and 124b and the notification of the alarm are performed through the AlarmLAN 250. The monitor locations are three locations of the primary multiplexing device: the working, standby output, and received radio waves.

Reference numerals 206a and 206b denote TS storage devices. If a failure occurs in a stream, fact confirmation and analysis are required. For this purpose, the outputs of the working primary multiplexing devices 120a and 120b always store the transport stream distributed by the distributor 208.

The 207a and 207b endlessly record on the large-capacity hard disk supplied to each of the TS storage devices 206a and 206b, and perform storage for several tens of minutes before and after the failure. Two units are currently installed in parallel and used for extracting data to a backup device.

Reference numerals 202a and 202b denote encoder monitor devices. Encoder monitor devices 202a, 202b
Is the TS (AS) of the video encoders 104a and 104b.
I) An encoder monitor device that receives an output and decodes video and audio. The video decoded by the encoder monitor device 202a is displayed on the monitor TV 210, and the video decoded by the encoder monitor device 202b is displayed on the monitor TV 213. On the other hand, the baseband signal of the input video passes through the distributor 215,
The image is displayed directly on the monitor television 209. By comparing these images, the image encoders 104a,
4b can be identified.

Reference numeral 221 denotes SWO (Switch Over Controlle).
r) Control device. The SWO control device 221 controls various TS switching devices. The relay contacts of the switching device are controlled by the built-in interface board and an external contact box (not shown), and the status of the switching device is obtained.
It also controls the main video monitoring monitor TV tally in the audio monitor room. These switching instructions and status monitoring are controlled by the AlarmLAN 250.

Reference numeral 222 denotes an alarm redundant control device,
223 is an alarm redundant terminal). All alarms in the EBS go through the Alarm LAN 250,
Collected by the alarm redundant control device 222.
The alarm redundant terminal 223 performs graphics processing on the data collected by the alarm redundant control device 222 and displays the data on a large-screen high-definition display 224. In addition, a warning sound is output from the speaker 225 according to the failure state.

Reference numeral 226 denotes a network monitoring terminal, which is an SNM.
The network is monitored by P (Simple Network Management Protocol) and displayed on the display device 227.

Reference numeral 228 denotes a maintenance terminal for the entire EBS, which can log in to each device. 229 is the display device.

FIG. 3 shows the system in the commissioned broadcaster 140 in detail. Contract broadcasting companies 140 and E
The BS 100 is connected to the NMD interface IF1, the baseband interface IF2, and the transport interface IF3.

The NMD interface IF1 is an interface for transferring files between the EBS system 100 and the commissioned broadcaster 140. The composition server 150 in the EBS 100 transmits the EMD-BDPS (Broadcasting
Data Processing System), and after temporarily passing through the possession server 102 in the EBS system 100, the following files are
Interface via the run LAN 103.
Note that the file format and communication specifications are
It is the same as DPS.

PGS LAN in the commissioned broadcaster 140
EMD encoder chain 305 via 350
Is connected. PGS in encoder chain 305
(Program Guide System) Schedule 305-1
EPG and conditional access (CA) information are generated. SRC (Sub Re) in the encoder chain 305
dundant Controller) 305-2 collects alarms. EPG-FC305 in encoder chain 305
At -3, the transmission of the EPG is performed.

The MCS (Mu) in the encoder chain 305
The secondary multiplexers 305-5a and 305-5b are controlled by the ltiplexer controller system 305-4. PSI, EP in the secondary multiplexers 305-5 and 305-5b
G information and ECM are generated, program selection and conditional access control are performed, and customer management is performed by an EMM generator (not shown).

[0116] The baseband interface IF2 is for transmitting baseband video and audio signals. The main video / audio is the cart device 1 of the contract broadcaster 140
70 and is sent to the EBS system 100 by one SDI signal. The signals are distributed to the required number of systems by the SDI distributor 215 of the EBS system 100 and input to the video encoders 104a and 104b.

The transport stream interface IF3 transmits a TS signal. Video encoders 104a, 104b, MUSICAM audio transmission servers 106a, 106b, ATRAC data transmission server 1
08a, 108b to 112a, 112b, MHEG transmission servers 118a, 118b, PTS synchronizer 123
a, 123b are output from the first-order multiplexers 120a, 120a.
b to be one TS (ASI) signal. Transport stream interface IF3
After that, a normal TS monitored by the monitoring equipment 301 is selected by the switching device 121, and one system of TS packet is output. The TS packet is distributed to the required number of systems on the contract broadcaster 140 side and used.

On the contract broadcasting company 140 side, TS (AS)
I) Distribution is performed by the distributor 304 into six systems. The distributed TS signals are used in the EMD encoder chain 305 for working and spare secondary multiplexing devices 305-5a and 305-5b.
And a working and spare secondary multiplexing device 306 in the global redundant chain (# 1) 306.
-5, 306-5b, working and spare secondary multiplexing devices 307 in the global redundant chain (# 2) 307
−5a, 305-5b.

The schedule, EPG, and conditional access (CA) information are generated by the PGS 306-1 in the global redundant chain 306. Alarms are collected at SRC 306-2 in the global redundant chain. EPG transmission is performed by the EPG-FC 306-3. 306-4 is an MCS for controlling the secondary multiplexing device. An ECS 306-6 controls the video encoder 306-7. Since the global redundant chain functions as a standby system for services other than the EMD broadcast, the ECS and the video encoder are required in the chain.

Using the EBS100 system described above,
Broadcasting of music distribution is performed as follows.

In FIG. 1, a program is organized by the program organization terminal 152, and music information and organization data are transferred to the organization server 150. The composition server 150 holds the music information and the composition data, and sends the interface file to the NMD of the commissioned broadcaster 140 by the designated date before the broadcast.
151.

The music material general information, image information, and lyrics information are registered and managed by the CD material management terminal 153 and the VTR material management terminal 154. Also, from the composition server 150, the MH
The content used in the MHEG is transferred to the EG management server 162.

The MHEG management server 162 receives the MHEG template from the MHEG template contractor,
Make a match with the content. Thereafter, the MHEG authoring terminal 162 performs MHEG authoring, captures the main video, and confirms the advance transmission of the program.

The composition table from the composition server 150 is SCH
It is sent to the possession server 102 via the LAN 131.
For the music material in the composition table, the sound source listening terminal 155
By 157, PCM material registration and lyrics timing registration are performed, and listening is further performed.

The possessing server 102 sends PCM data to the data conversion device 103 based on the organization table, and controls the PCM data to convert the PCM data into MUSICAM format and ATRAC format data.

The holding server 102 holds, for example, one week's worth of program data such as a composition table and music data. The PCM music data that has finished broadcasting is stored in the archive system 101.
Is forwarded to The archive system 101 manages and records PCM music data in a large-capacity hierarchy.

The video encoders 104a and 104b have
A video signal is sent from the cart 170 of the commissioned broadcaster 140. The video signals are encoded by the video encoders 104a and 104b.

The MUSICAM transmission system 106a, 1
06b, ATRAC delivery systems 108a, 108b-
The organization table is sent from the possession server 102 to 112a and 112b. According to the contents of this composition table, MUSICA
M data multiplexing / transmission, audio additional data multiplexing / transmission,
ATRAC data is multiplexed / transmitted.

The video encoders 104a and 104b and M
The PTS of the audio signal TS packet from the USICAM sending server is synchronized by the PTS synchronizers 123a and 123b.

The MHEG data transmission server 118
a, 118b, the organization table is sent from the possession server 102. The MHEG data transmission servers 118a, 118b
When the composition table is received, multiplexing of the packet and transmission of the DSM-CC system are performed according to the contents.

Each sending server 108a, 108b-112
a, 112b, 118a, 118b, and the outputs of the PTS synchronizers 123a, 123b are output from the primary multiplexer 120a,
120b, and is interfaced to the entrusted broadcaster's encoder chain.

[0132] The TS monitor 124a, 124b
The transport stream transmitted from the BS system 100 is monitored. At the same time, the receiver 205
The transmission signal is received in (FIG. 2), and this TS is monitored by the TS monitor 124c.

The video of the EBS system 100 can be monitored by the monitor televisions 209 to 214. Each audio signal can be switched by the switching console 215 and visually monitored by the audio peak level display devices 216a to 216c and 220. In addition, this sound can be directly heard by the speaker 217.

The alarm in the EBS 100 is collected by the alarm redundant terminal 223. When a failure occurs, an alarm is displayed on the display 224, and a warning sound is generated from the speaker 225.

In this example, the data transmission unit is M
Although the description is made by performing various processes such as packetization and multiplexing specified by PEG2 Systems, it may be transmitted as a file without packetization and multiplexing via the Internet or a computer LAN.

Although a satellite is used as a transmission medium in this example, it goes without saying that the present invention can be applied to other transmission media such as terrestrial waves and cables.

Further, in this example, the MHEG technology has been described as an example of GUI construction, but other GUI construction technologies such as HTML and ATVEF may be applied.
Instead of sending I from the broadcast system, a GUI may be constructed on the receiver side, or a simple configuration such as a button having no GUI may be used.

In this example, a video synchronous data broadcasting system in which music is downloaded as data to a television image is described. However, even in the case of music synchronous data broadcasting, such as downloading an image as data to music, further downloading is performed. Even if the data is video, image, text, or any program content, the content is compressed /
It goes without saying that the present invention can be easily applied irrespective of data formats such as non-compression and conversion / non-conversion.

[0139] In this embodiment, the service in which the video is the main program and the music is the sub is described.
The sub-relationship is not limited to this. It is also possible to apply the present invention to a broadcasting system that provides a video that is highly compressed by, for example, MPEG1 as a main program and uses the music as a sub as a sub program. is there.

Furthermore, the present invention can be applied to radio broadcasting as it is. For example, the speaker is introduced as a radio program while introducing music that is voice, and the music is played in the background, so that the introduced music can be downloaded as data. In this example, the previewer is introduced to music that is being viewed on a radio program. Just watching this program mixes introductory sounds and does not broadcast all the music, so recording it has no value. Therefore, when the viewer is interested in the music and wants to listen to all the music, the music data can be downloaded. In this case, M
It is not always necessary to apply the GUI construction technology by an HEG engineer or the like. For example, a simple configuration such as a button having no GUI may be used.

[0141]

As described above, according to the present invention, material data such as music and computer programs and material data such as video and text are linked and broadcasted. Digital distribution of music, computer programs, and the like can be performed efficiently. In addition, the user can receive digital data such as desired music and a computer program while viewing video, music and the like that are actually being broadcast.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an EBS system to which the present invention has been applied.

FIG. 2 is a block diagram showing a configuration of a monitoring and alarm system in the EBS system to which the present invention is applied.

FIG. 3 is a block diagram showing a configuration of a system between an EBS system to which the present invention is applied and a contract broadcasting company.

FIG. 4 is a schematic diagram used for describing a mode of an EMD service.

FIG. 5 is a timing diagram showing a component structure of an EMD service.

FIG. 6 is a schematic diagram illustrating a relationship between PMT and SMT.

[Explanation of symbols]

101: Archive system, 102: Owned server, 103: Data converter, 104a, 104
b ... Video encoder, 106a, 106b ... M
USICAM voice transmission server, 108a, 108b-1
12a, 112b... ATRAC data transmission server,
118a, 118b ... MHEG data transmission server,
150 ... formation server, 155-157 ... sound source inspection terminal, 162 ... MHEG management server, 164 ...
・ MHEG authoring terminal

Claims (45)

[Claims] 1. A knitting means for knitting a program based on a first material data and a second material data; a graphic screen forming means for performing a process for forming a graphic screen; Holding means for transferring and holding the first material data and the second material data; data conversion means for converting the first material data from the holding means into data of a required format; Sending means for sending the first material data converted into a required format by the data converting means, graphic screen data from the graphic screen forming means, and the second material data; A broadcasting system for performing broadcasting by linking data and the second material data by the data of the graphic screen. 2. The graphic screen forming means according to claim 1, wherein:
The broadcasting system according to claim 1, wherein the broadcasting system provides an EG type graphic screen. 3. The graphic screen forming means according to claim 1, wherein
2. The broadcasting system according to claim 1, wherein the broadcasting system provides a graphic screen created in ML language. 4. The broadcast system according to claim 1, wherein said data conversion means converts the PCM data into MPEG data and ATRAC data. 5. The broadcasting system according to claim 1, further comprising an archive unit for storing the broadcasted material data. 6. The broadcasting system according to claim 1, further comprising monitoring means for monitoring a broadcasting state. 7. The broadcasting system according to claim 1, further comprising a warning unit for notifying an abnormality. 8. The broadcasting system according to claim 1, further comprising charging management means for managing charging of the provided material data. 9. The broadcasting system according to claim 1, wherein the first material data is music data. 10. The broadcasting system according to claim 1, wherein the first material data is a computer program. 11. The broadcasting system according to claim 1, wherein the second material data is video data. 12. The broadcasting system according to claim 1, wherein the second material data is text data. 13. The broadcasting system according to claim 1, wherein said second material data is encoded as necessary and transmitted by said transmission means. 14. A knitting means for organizing a program based on material data and data accompanying the material data, and the material data and data accompanying the material data required for broadcasting from the knitting means are transferred and held. Holding means, a data converting means for converting the material data from the holding means into data in a required format, and a process for forming a screen for providing a user with the material data converted into a required format. Data providing screen forming means to be performed, and transmitting means for transmitting the material data converted into a required format by the data converting means, data accompanying the material data, and data of the data providing screen. And a broadcasting system. 15. The broadcasting system according to claim 14, wherein said data conversion means converts the PCM data into MPEG data and ATRAC data. 16. The broadcasting system according to claim 14, further comprising an archive unit for storing the broadcasted material data. 17. The broadcasting system according to claim 14, further comprising monitoring means for monitoring a broadcasting state. 18. The broadcasting system according to claim 14, further comprising warning means for notifying an abnormality. 19. The broadcasting system according to claim 14, further comprising charging management means for managing charging of the provided material data. 20. The broadcasting system according to claim 14, wherein said material data is music data. 21. The broadcasting system according to claim 14, wherein the material data is a computer program. 22. The data accompanying the material data,
The broadcast system according to claim 14, wherein the broadcast system is video data. 23. The data accompanying the material data,
The broadcast system according to claim 14, wherein the broadcast system is text data. 24. The data accompanying the material data,
15. The broadcasting system according to claim 14, wherein the data is encoded as necessary and transmitted by the transmission means. 25. A knitting means for organizing a program using material data and data accompanying the material data, and the material data and data accompanying the material data required for broadcasting are transferred and held from the knitting means. Holding means, data conversion means for converting the material data from the holding means into data in a required format, and converting the material data and the data accompanying the material data converted into the required format by the data conversion means. A broadcasting system comprising transmitting means for transmitting, wherein the material data converted into a required format and data accompanying the material data are linked to perform synchronous data broadcasting. 26. The broadcasting system according to claim 25, wherein said data conversion means converts the PCM data into MPEG data and ATRAC data. 27. The broadcasting system according to claim 25, further comprising an archive means for storing the broadcasted material data. 28. The broadcasting system according to claim 25, further comprising monitoring means for monitoring a broadcasting state. 29. The broadcasting system according to claim 25, further comprising warning means for notifying an abnormality. 30. The broadcast system according to claim 25, further comprising charging management means for managing charging of the provided material data. 31. The broadcasting system according to claim 25, wherein said material data is music data. 32. The broadcasting system according to claim 25, wherein said material data is a computer program. 33. The data accompanying the material data,
The broadcast system according to claim 25, wherein the broadcast system is video data. 34. The broadcasting system according to claim 25, wherein the data accompanying the material data is text data. 35. The data accompanying the material data,
26. The broadcasting system according to claim 25, wherein the broadcast system is encoded as necessary and transmitted by the upper transmission means. 36. Knitting means for organizing a program using material data and data accompanying the material data, and holding means for transferring and holding data necessary for broadcasting and data accompanying the material data from the knitting means. Data conversion means for converting the material data from the holding means into data of a required format; and data provision for performing processing for forming a message for providing the user with the material data converted to the required format. A broadcast system comprising: a message forming unit; and a sending unit that sends out the material data converted into a format required by the data converting unit, data accompanying the material data, and data of the data providing message. . 37. The broadcasting system according to claim 36, wherein said data conversion means converts PCM data into MPEG data and ATRAC data. 38. The broadcasting system according to claim 36, further comprising an archive unit for storing the broadcasted material data. 39. The broadcasting system according to claim 36, further comprising monitoring means for monitoring a broadcasting state. 40. The broadcast system according to claim 36, further comprising warning means for notifying an abnormality. 41. The broadcast system according to claim 36, further comprising charging management means for managing charging of the provided material data. 42. The broadcasting system according to claim 36, wherein said material data is music data. 43. The broadcasting system according to claim 36, wherein said material data is a computer program. 44. The data accompanying the material data,
The broadcast system according to claim 36, wherein the broadcast system is text data. 45. The data accompanying the material data,
37. The broadcast system according to claim 36, wherein the broadcast system is encoded as necessary and transmitted by the transmission unit.