JP3392315B2 - Data broadcast system and data broadcast receiving terminal device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data broadcasting system for transmitting data by utilizing a gap between television video signals, restoring received data to a directory structure for storage and management, and data used for the data broadcasting system. The present invention relates to a broadcast receiving terminal device.

[0002]

2. Description of the Related Art Recently, Intel Corporation of the United States uses a specific area of a gap (VBI = vertical blanking period) of a television video signal to match a television broadcast content and transmit data related thereto. The technology was proposed, and even in Japan, the VBI is used to
Based on B), a data broadcast has been proposed that transmits a data (Html data and image) signal, a TCD (transmission control data) signal, and a time signal. In such data broadcasting technology, the data to be broadcast is data such as text and images of the contents of a television program, the contents are classified within one program, and a file is created for each data of the classified contents. Is created. For example, referring to FIG. 1, in one news program, program contents are classified into news, weather forecast, traffic information, etc., and the news is further classified into news 1, news 2, news 3 according to the contents. To create a file. And
The broadcasting station manages the above files in a directory structure by classifying them on a daily basis, for example.

[0003]

However, in the conventional data broadcasting technology, it is not possible to transmit the data classified and managed by the broadcasting station by the directory structure by the data signal as the number of characters in the file name. However, if the receiving terminal device receives and saves the data as it is, data management becomes difficult.
Therefore, in order to receive a data file transmitted from a broadcasting station while maintaining the directory structure, it is possible to archive the directory information including the directory information and transmit it as one file. However, even if the file content is changed, it cannot be easily replaced by the changed one, and there is a problem in that it cannot be received and managed for each necessary information when needed.

The present invention has been made in order to solve such a problem, and in data broadcasting, by transmitting a file list including a directory structure together with the data, the data managed by the directory structure in the broadcasting station can be obtained. It is an object of the present invention to provide a data broadcasting system and a data broadcasting receiving terminal device capable of storing and managing data by restoring the directory structure in the receiving terminal device even when transmitted without archiving.

[0005]

In order to solve the above problems, a data broadcast receiving terminal device according to the present invention (Claim 1) is provided.
The data is transmitted from the broadcasting station to the data broadcasting receiving terminal device.
Data file is transmitted and the data file is transmitted
File name and storage in the data broadcast receiving terminal device
Corresponds to the file name including the directory structure at the time
Transmit the file list as one map file
Data broadcasting used in data broadcasting systems
Receiving terminal device, the data file and map
Data broadcasting data for receiving data broadcasting including files
The receiving means and the received data file are
Data file storage that stores the file name when sending the file
Information on the file list from the loading means and the received files.
File list extraction to find the map file containing the information
The transmission means and the broadcast from the received data
Broadcaster identification that extracts the broadcaster identification code of the transmitting station
The code extraction means and the received data file are
File name according to the above file list in the above directory
In addition to changing the file name including the configuration, the above broadcasting business
Broadcaster identification extracted by the person identification code extraction means
Create a directory for each code and under that directory
And a data file saving means for saving the data in the file .

Data according to the present invention (claim 2)
The broadcast receiving terminal device receives the data broadcast according to claim 1.
In the terminal device, the data file storage means is
Directory with broadcaster identification code as directory name
It creates a tree .

A data broadcast receiving terminal device according to the present invention (claim 3 ) is a data broadcast receiving terminal device according to claim 1.
In the terminal device, the broadcaster identification code and the broadcast
Data that correlates with the name of the broadcasting station that has the carrier identification code
Database, the above broadcaster identification code
A station name conversion means for converting the station name is further provided, and
The data file saving means is the above broadcasting station name converting means.
Directory with converted station name as directory name
Is to create .

[0008]

[0009]

[0010]

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Embodiment 1. FIG. 1 is a diagram for explaining the outline of the data broadcasting system according to the first embodiment of the present invention. In the figure, at the broadcasting station, news 1, news 2, news 3,
Of the information (data file) of today's weather, tomorrow's weather, city area, highways, etc., News 1, News 2,
News 3 is classified into news, today's weather and tomorrow's weather are classified into weather forecasts, and city areas and highways are classified into traffic information, forming a directory structure. In the receiving terminal device, the directory structure formed by the broadcasting station is stored in a different directory for each broadcasting station as it is. Here, since the data file is not archived but is transmitted for each data file, it is packetized and transmitted. That is, three data (HTML data and image) signals, TCD, which are standardized (ARIB) by the radio industry.
Among the (transmission control data) signal and the time signal, the packetized data file is transmitted as a data signal together with the TCD signal and the time signal.

Next, the file list used to restore the directory structure of the data file transmitted in packets will be described. FIG. 2 is a diagram showing a file list transmitted in the data broadcasting system according to the first exemplary embodiment of the present invention. In the figure, 1 is a file name at the time of transmission used for distinguishing the data files at the time of transmitting the data file, and the number of characters is limited. Reference numeral 2 is a file name at the time of storage including a directory structure when the directory structure of the received data file is restored and stored, and 3 is a directory structure.
4 is a file length indicating the capacity of the data file, 5 is an output date and time indicating the date and time when the content of the television program corresponding to the data file is output, 6 is a file at the time of storage including the file name 1 at the time of transmission and the directory structure 3 This is data file configuration information unique to each data file, which is composed of a name 2, a file length 4, and an output date / time 5, and associates a file name at the time of transmission with a file name at the time of storage and a directory structure. File configuration information 6
Are described on separate lines. A map file 7 is a file list in which the data file configuration information 6 of a plurality of data files is arranged.

Here, as shown in FIG. 1, the map file is a file separate from the data files of news 1, news 2, news 3, today's weather, tomorrow's weather, city areas, expressways, etc. It is transmitted with the file.

Next, the process of creating the file list and the process of restoring the directory structure of the data file by the file list will be described. FIG. 3 shows the first embodiment of the present invention.
FIG. 6 is a diagram showing an outline of a process in which a file group transmitted in the data broadcasting system according to the first embodiment restores a directory structure by a file list. Explaining the operation based on the figure, the broadcasting station, when transmitting the data file,
Data file configuration information (directory structure information) is created for each data file and described in one file, thereby creating a file list (map file) corresponding to a file group including a number of data files. The data file is data-converted together with the created map file, multiplexed, and transmitted from the transmitter. The receiving terminal device selects the file transmitted by the tuner, converts the decoded data into data, and completes file reception. Among the received files, the map file is sent to the directory structure restoration unit, and the data file is received according to the description of the map file together with the file group that has been received and restored and stored in the directory structure in the file group storage unit. The directory structure is restored and stored.

Further, the directory structure restoring process in the receiving terminal device will be described based on the configuration of the receiving terminal device. FIG. 4 is a block diagram showing the configuration of the receiving terminal device according to Embodiment 1 of the present invention. In FIG. 4, reference numeral 10 is a data broadcast data receiving unit for receiving packetized data transmitted by data broadcasting, and 11 is a hard disk 1 as a file with a name upon reception by concatenating the received data.
2 is a data file storage unit for storing, 12 is a hard disk for storing newly received files and data files already restored to the directory structure, and 13 is a file for extracting a file list (map file) from files stored in the hard disk 12. The list extracting unit 14 is a data file saving unit that changes the name of the data file received according to the map file extracted by the file list extracting unit 13 and saves it in a predetermined directory.

Next, the operation will be described. The data broadcasting data receiving unit 10 receives the data of the data file and the map file transmitted in packets, and these data are linked by the data file storage unit 11 and stored in the hard disk 12 as a file.
Next, the file list extraction unit 13 searches for and extracts a map file from the newly received data file, map file, and saved data file in the hard disk 12, and the data file storage unit 14
According to the contents of the extracted map file, the newly received data file of the remaining data files is restored to a predetermined directory, and the hard disk 12 is restored.
Save to.

Regarding the map file, as described with reference to FIG. 2, the map file transmitted from the broadcasting station corresponds to a data file group when a data file group related to one program is transmitted. Not only the data file configuration information 6 but also the latest one in which all the data file configuration information 6 transmitted up to that day are described.

A special identifier is attached to the map file so that it can be easily distinguished from the data file.

In the first embodiment, a data file to be transmitted by data broadcasting is packetized together with a map file including a file name at the time of transmitting the data, a file name at the time of storing the data, and a directory structure to use the VBI. The receiver terminal device receives the packetized and transmitted data file with the file name at the time of transmission, and changes the file name at the time of storage according to the map file transmitted at the same time to restore the directory structure. As a result, it is possible to transmit each data file without archiving and restore the directory structure. In addition, since the data is not compressed, it is possible to easily change the data content during transmission. For example,
A local broadcasting station can replace a part of the data file group created by the central broadcasting station. Furthermore, if you receive a data file with the same directory structure,
You can overwrite the old one and save the new one by overwriting. For example, if you receive a data file whose directory structure is weather forecast / tomorrow's weather in the morning, and receive the same directory's weather forecast changed in the afternoon, do not save unnecessary information. It is possible to update by overwriting and saving the data file. Further, since the map file is transmitted as a file separate from the data file, there is no limitation on the directory structure or the number of characters in the file name, and the degree of freedom is high.

In addition to the above-mentioned configuration, the receiving terminal device may basically have a video recording device in a personal computer with a television tuner.

As described above, in the data broadcasting system according to the first embodiment, the data file is transmitted from the broadcasting station to the data broadcasting receiving terminal device using radio waves,
A file list in which a file name at the time of transmitting the data file and a file name including the directory structure at the time of storage in the data broadcast receiving terminal device are associated with each other is transmitted as one map file. A data broadcast receiving terminal device,
A data broadcast data receiving means for receiving a data broadcast including the data file and the map file, a data file storing means for storing the received data file with the file name at the time of transmitting the data file, and a file from the received files A file list extracting means for searching for a map file containing list information and a data file saving means for saving the received data file by changing the file name to a file name including the directory structure according to the file list. Since the data file is provided, the data file has a high degree of freedom with no restrictions on the directory structure and the number of characters of the file name, and the directory structure can be restored by transmission. Further, it is possible to update by saving the saved data file by overwriting.

Embodiment 2. The second embodiment is an example in which, in the data broadcasting system according to the first embodiment, a data file whose directory structure has been restored is stored in the directory of the channel number for each channel.

Referring to FIG. 1, in the data broadcasting system according to the first embodiment, the directory structure surrounded by the dotted line on the broadcasting station side is restored to the directory structure surrounded by the dotted line on the receiving terminal side. Therefore, when receiving a data broadcast from a plurality of broadcasting stations, the directory structure formed for each broadcasting station is restored to the directory structure for each broadcasting station even on the receiving terminal side. Here, when the format of the map file is different for each broadcasting station, the directory structure of each broadcasting station is restored as a different directory structure for each broadcasting station, but each broadcasting station uses the map file of the same format. In this case, it becomes difficult to restore the directory structure for each broadcasting station. That is, in the figure, the directory structure of News / News 2 is in each broadcasting station of XX broadcasting, △△ TV, and TV □□, and no distinction is made, and that of XX broadcasting is △△. There may be situations where the television directory structure is entered or no broadcast station directory structure is entered. Therefore, in the second embodiment, in the data broadcasting system according to the first embodiment, the data file can be stored in the directory of the channel number for each channel that receives the data file.

FIG. 5 is a block diagram showing the configuration of the receiving terminal device according to the second embodiment of the present invention. In the figure,
4 that are the same as those in FIG. 4 are the same or corresponding parts. Also, 15
Is a channel selector that is provided in the data broadcast data receiving unit 10 and determines the channel number that received the data.

Next, the operation will be described. The data broadcast data receiving unit 10 receives the data of the data file and the map file transmitted in packets, and the channel selector 15 determines the channel number of the data received. The above data is linked by the data file storage unit 11 for each channel number and stored as a file in the hard disk 12. Next, the file list extraction unit 13 searches for and extracts a map file from the newly received data file, map file, and saved data file of the hard disk 12, and the data file storage unit 14 extracts this map file. According to the contents of the map file, newly received data files of the remaining files are restored to a predetermined directory, and for each channel number obtained by the channel selector 15, the data files stored under the directory of the channel number are stored. The directory structure is stored in the hard disk 12.

In the second embodiment, in addition to the effect obtained by the same configuration as that of the first embodiment, the channel number which received the data file is determined by the channel selector 15, and the data file is sorted by the channel number. The data files can be saved without being mixed because the channel is processed and saved under the directory of the channel number.

As described above, in the data broadcasting system according to the second embodiment, the data file is transmitted from the broadcasting station to the data broadcasting receiving terminal device by utilizing the gap of the television video signal, and the data file is transmitted. Data broadcasting reception used in a data broadcasting system, which transmits a file list in which a file name at the time of transmitting files and a file name including a directory structure at the time of storage in a data broadcasting receiving terminal device are associated as one map file In the terminal device, the data broadcast data receiving means for receiving the data broadcast including the data file and the map file, the receiving channel number obtaining means for obtaining the channel number during the reception of the data broadcast, and the received data file Data file to be stored under the file name when the data file was sent File accumulating means, a file list extracting means for searching a map file containing the information of the file list from the received files, and a received data file whose file name includes the directory structure according to the file list. In addition to changing the name, it is provided with a data file saving means for creating a directory having the channel number as a directory name for each channel number acquired by the receiving channel number acquiring means and saving the directory under the directory. The data file has a high degree of freedom with no restrictions on the directory structure and the number of characters in the file name, and can be transmitted to restore the directory structure. Further, it is possible to update by saving the saved data file by overwriting. Further, it is possible to save the data files without being mixed.

Embodiment 3. The third embodiment is an example of a case where the data broadcasting system according to the first embodiment stores a data file whose directory structure is restored in a separate directory for each broadcasting station.

In the second embodiment, the data file can be stored in the directory of the channel number for each channel that receives the data file. However, when the receiving device moves, for example, when a user receiving a data broadcast moves from Tokyo to Osaka, the broadcasting station M that was receiving on channel 3 in Tokyo is received.
Since BK Tokyo will receive on channel 12 in Osaka, MBK Tokyo is saved under a directory with different channel numbers before and after moving. Not only that, but in Tokyo, we are receiving from other broadcasting stations on channel 12,
When receiving from another broadcasting station on channel 3 in Osaka, data files are mixed. Therefore, in the third embodiment, in the data broadcasting system according to the first embodiment, the data file can be stored in a separate directory for each broadcasting station instead of for each channel.

First, a broadcaster identification code (PV code) used to distinguish each broadcasting station will be described.
As shown in FIG. 6, each broadcasting station has one PV code corresponding to its broadcasting company name.
The V code is a T code which is different from the V code at the same time as the data is transmitted by the data (Html data and image) signal.
It is transmitted by a CD (transmission control data) signal. Therefore, one PV code transmitted from the same broadcasting station does not overlap between broadcasting stations, and is naturally common throughout the country.

Next, the structure of the receiving terminal device for storing the data file received using the PV code in the directory of the PV code name for each broadcasting station will be described. FIG. 7 is a block diagram showing a configuration of a receiving terminal device according to Embodiment 3 of the present invention. In the figure, the same reference numerals as those in FIG. 4 indicate the same or corresponding parts. Reference numeral 20 is a PV code extraction unit that extracts the PV code in the TCD signal from the signals received by the data broadcast data reception unit 10.

Next, the operation will be described. As for the data file and the map file, the data file storage unit 14 restores the newly received data file to a predetermined directory in accordance with the extracted map file, as in the first embodiment. On the other hand, the data broadcast data receiving unit 10 receives the TCD signal simultaneously with the data signals of the data file and the map file, and the PV code extracting unit 20 extracts the PV code in the TCD signal. Next, the data file storage unit 14 restores the data file to a predetermined directory, creates a directory having a PV code name corresponding to the broadcasting station to which the data file is transmitted, and stores the directory under the directory. .

In the third embodiment, in addition to the effect obtained by the same configuration as the first embodiment, the PV code extracting unit 20 extracts the PV code transmitted at the same time as the data file, and the data file saving unit At 14, the data file is restored to a predetermined directory, and a directory having a PV code name corresponding to the broadcasting station to which the data file is transmitted is created and stored under the directory. Even if you move to receive data files from different broadcast stations on the same channel, the data files will not be mixed,
Malfunctions can be prevented.

As described above, in the data broadcasting system according to the third embodiment, in the data broadcasting receiving terminal device according to claim 4, the data file saving means uses the broadcaster identification code as a directory name. Since the directory is created, the data file is
There is no limit to the number of characters in the directory structure or file name, and the degree of freedom is high, and the directory structure can be restored by transmission. Further, it is possible to update by saving the saved data file by overwriting. Furthermore, even if the receiving device moves, data files do not coexist, and malfunctions can be prevented.

Fourth Embodiment The fourth embodiment is an example in which, in the data broadcasting system according to the third embodiment, a data file whose directory structure has been restored is stored under the directory of the broadcasting station name for each broadcasting station.

FIG. 8 is a diagram showing a correspondence table of PV codes and broadcasting station names used for creating a directory of the broadcasting station name for each broadcasting station. In the figure, 30 is PV
A code / broadcast station name correspondence table, 31 is a PV code, 32 is a broadcast station name, and 33 is a directory broadcast station name. Referring to FIG. 8, the broadcasting station whose PV code 31 is 001 is MBK Tokyo, and this is the official broadcasting station name 32. MBK_TKYO of directory name 33
Is an official broadcasting station name of up to 8 letters and 32
MBK Tokyo is easily recalled and set so as not to be mistaken for other broadcasting stations.

FIG. 9 is a block diagram showing the structure of the receiving terminal device according to the fourth embodiment of the present invention. 9, the same reference numerals as those in FIG. 7 indicate the same or corresponding parts. Also,
Reference numeral 41 is a broadcast station name conversion unit that converts the PV code extracted by the PV code extraction unit 20 into the corresponding broadcast station name.

Next, the operation will be described. Regarding the data file and the map file, in the same way as in the third embodiment, the data file storage unit 14 restores the newly received data file to a predetermined directory according to the extracted map file, while receiving the data broadcast data. The section 10 receives the TCD signal at the same time as the data signal of the data file and the map file, and the PV code extracting section 20 extracts the PV code in the TCD signal.
Next, in the broadcasting station name conversion unit 41, the above PV code is converted into a broadcasting station name corresponding to the PV code based on the PV code / broadcasting station name correspondence table 30 stored in advance in the hard disk, and the data file is converted. It is sent to the storage unit 14. Therefore, the data file saving unit 14 restores the data file to a predetermined directory and saves it under the directory of the broadcasting station name to which the data file was transmitted. As described above, the directory structure shown in FIG. 10 is saved.

Here, it is preferable that the PV code is converted into an official broadcasting station name 32 corresponding to the PV code, and the broadcasting station name 32 is used as it is as a directory name.
If the hardware of the receiving terminal device is limited, the directory broadcast station name 33 is used. Also in this case, the directory broadcasting station name 33 is set so that the formal broadcasting station name 32 is easily recalled as described above and is not misidentified as another broadcasting station. The same effect as when the broadcast station name 32 is used as the directory name is obtained.

In the fourth embodiment, in addition to the same effect as in the third embodiment, a PV code name directory for each broadcasting station is used by using the PV code transmitted at the same time as the data file in the third embodiment. Was created and the data file was stored for each broadcasting station. The PV code / broadcasting station name correspondence table is used to create a broadcasting station name directory for each broadcasting station from the PV code. Since the data files are saved for each directory, the data files do not mix even when the receiving device moves, preventing malfunctions and saving the data files under the directory of the broadcasting station name. Then, it can be managed easily.

As described above, in the data broadcasting system according to the fourth embodiment, in the data broadcasting receiving terminal device according to claim 4, the broadcasting company identification code and the broadcasting station name having the broadcasting company identification code. Further comprising a broadcasting station name conversion means for converting the broadcasting company identification code into the broadcasting station name by a database associating with, and the data file storage means stores the broadcasting station name converted by the broadcasting station name conversion means. Since the directory having the name is created, the data file has a high degree of freedom with no limitation in the directory structure and the number of characters of the file name, and the directory structure can be transmitted to restore the directory structure. Further, it is possible to update by saving the saved data file by overwriting. Further, even when the receiving device is moved, the data files do not coexist, the malfunction can be prevented, the data can be stored in an easy-to-understand manner, and the management can be easily performed.

[0042]

As described above, according to the data broadcasting receiving terminal device of the present invention (Claim 1), the data file is transmitted from the broadcasting station to the data broadcasting receiving terminal device ,
In addition, the file name at the time of sending the data file and the data
Directory structure when stored in a data broadcasting terminal device
One file list that is associated with the file name including
Data broadcasting system that transmits as a map file of
A data broadcast receiving terminal device used in
Data release including the above data files and map files
The data broadcasting data receiving means for receiving the transmission and the received data
Data file is the file used when the data file was sent.
Data file storage means to store by name and received file
Map that contains the information of the file list from the file
File list extraction means to search for files and received data
Broadcaster identification code of the broadcasting station where the data was broadcast from
A broadcaster identification code extracting means for extracting a code and receiving
The data file that was created
To the file name including the above directory structure according to the list
In addition to changing the broadcaster identification code extraction means
Direct for each broadcaster identification code extracted
Data files to be created and saved under the directory
Data file
Limits the number of characters in the directory structure and file name.
There is a high degree of freedom, and this is transmitted and data is received.
It is possible to restore the directory structure on the terminal device.
Wear. Also, save the saved data file by overwriting.
It is possible to update by doing. In addition,
Even if the communication device moves, the data files may not be mixed.
It has the effect of preventing malfunctions .

Data according to the present invention (claim 2)
According to the broadcast receiving terminal device, the data release according to claim 1
In the transmission / reception terminal device, the data file storage means
Uses the above broadcaster identification code as the directory name
Since we decided to create a directory,
Limits the number of characters in the directory structure and file name.
There is a high degree of freedom, and this is transmitted and data is received.
It is possible to restore the directory structure on the receiving terminal.
it can. Also, save the saved data file by overwriting it.
It is possible to renew by existing. further,
Data files are mixed even if the receiving device moves
It is possible to prevent malfunction.

According to the data broadcast receiving terminal device of the present invention (claim 3 ), the data broadcast according to claim 1 is transmitted.
In the transmitting / receiving terminal device, the above broadcaster identification code and
Correlate with the broadcasting station name having the broadcasting company identification code
The above database identification code can be
Further, a broadcasting station name conversion means for converting into a broadcasting station name is further provided,
The data file storage means is the broadcasting station name conversion means.
Directory with the broadcast station name converted by
The data file is
There is no limit on the number of characters in the directory structure or file name.
The reason for this is that the data reception terminal transmits this
You can restore the directory structure on the device
It Also, overwrite the saved data file.
It is possible to update it. In addition, receive
Data files should be mixed even if the device is moved
Not only can prevent malfunctions, but also easy to understand
Can be saved and easily managed.

[0045]

[0046]

[0047]

[Brief description of drawings]

FIG. 1 is a diagram illustrating an outline of a data broadcasting system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a list of files transmitted in the data broadcasting system according to the first exemplary embodiment of the present invention.

FIG. 3 is a diagram showing an outline of a process in which a file group transmitted in the data broadcasting system according to the first exemplary embodiment of the present invention restores a directory structure by a file list.

FIG. 4 is a block diagram showing a configuration of a receiving terminal device according to the first embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a receiving terminal device according to a second embodiment of the present invention.

FIG. 6 is a diagram showing an example of a broadcaster name corresponding to a PV code used in the third embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a receiving terminal device according to a third embodiment of the present invention.

FIG. 8 is a diagram showing a correspondence table of PV codes and broadcasting station names used in Embodiment 4 of the present invention.

FIG. 9 is a block diagram showing a configuration of a receiving terminal device according to a fourth embodiment of the present invention.

FIG. 10 is a diagram showing a directory structure of a data file in the data broadcasting system according to the fourth exemplary embodiment of the present invention.

[Explanation of symbols]

1 File name when sending 2 File name when stored 3 directory structure 4 file length 5 Output date and time 6 Data file configuration information 7 map files 10 Data broadcasting data receiver 11 Data file storage 12 hard disk 13 File list extraction section 14 Data file storage 15 channel selector 20 PV code extraction unit 30 PV code / broadcast station name correspondence table 31 PV code 32 Broadcasting station name 33 Broadcasting station name for directory 41 Broadcasting station name conversion unit

Front page continued (72) Inventor Atsushi Horioka 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-7-210475 (JP, A) JP-A-56301 (JP , A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04L 29/00-29/14

Claims (3)

(57) [Claims] 1. A data file is transmitted from a broadcasting station to a data broadcast receiving terminal device, and the data file is transmitted.
Of the file name at the time of sending the
File name including the directory structure when storing
The file list that has been applied is as one map file
The data used in the data broadcasting system for transmission.
A data receiving terminal device for broadcasting data including the above data file and map file.
The data broadcasting data receiving means for receiving the transmission and the received data
Data file is the file used when the data file was sent.
Data file storage means to store by name and received file
Map that contains the information of the file list from the file
File list extraction means to search for files and received data
Broadcaster identification code of the broadcasting station where the data was broadcast from
A broadcaster identification code extracting means for extracting a code and receiving
The data file that was created
To the file name including the above directory structure according to the list
In addition to changing the broadcaster identification code extraction means
Direct for each broadcaster identification code extracted
Data files to be created and saved under the directory
Data broadcast receiving, characterized in that a Le storage means
Terminal device . 2. A data broadcast receiving terminal device according to claim 1.
In the storage , the data file storage means is the broadcaster identification code.
A data broadcast receiving terminal device , characterized in that a directory having a directory name is created . 3. The data broadcast receiving terminal device according to claim 1.
In location, the broadcaster identification code and the broadcaster identification code
With a database that correlates with the broadcasting station name you have,
Broadcast in which the broadcaster identification code is converted to the above broadcasting station name
Station name converting means, and the data file storing means is the broadcasting station name converting means.
Directory with the broadcast station name converted by
A data broadcast receiving terminal device characterized by creating a tree .