JPH11261979A - Data broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data broadcast receiver with which the contents of programs in the past can be automatically preserved with a little preservation capacity and the preserved program contents can be displayed. SOLUTION: This receiver is provided with a data file storage part 3 for connecting the data of packet units and storing data files, data update discriminating part 4 for judging whether the file stored in a display data storage part 6 is updated or not, past data storage part 7 for storing data file groups in the past, current data storage part 8 for storing current latest data files and stored data managing part 5 for reporting the update of the stored display data file before the update to the part 7, performing the extraction, update and preservation of the required data files and waking the desired data into a display data file.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data broadcast capable of displaying past program data as necessary for data of a broadcast program whose contents are successively updated in a data broadcast utilizing a gap between television video signals. It relates to a receiving device.

[0002]

2. Description of the Related Art In recent years, characters and graphic data are broadcast using gaps between television broadcast signals (vertical erase blanking interval = VBI), and a receiver can receive the data and display it on a browser screen. Available data broadcasting services are beginning to spread. Currently, the data broadcasting programs provided with the service include news, weather, serial reading, and the like.

In general, these data broadcast programs are configured by arranging independent data files such as figures and characters on a plurality of HTML format data files. Immediately after reception, each data file is temporarily stored in a storage directory with a temporary name, then converted from the temporary name to a real name for display, and stored in a display directory for each program. The real name is described in the display name description file broadcast for each broadcast unit, and when the display name description file is received by the receiving device, the name conversion of a plurality of data files described therein is performed at the same time. The data is stored in the specified directory in the display directory described in the display name description file.

A plurality of data file groups stored in an independent directory for each program are broadcast periodically on a program basis, and the data file group received this time is in the same directory as the data file group received last time. For the data file with the same name, the previous one is deleted and replaced with the current one. As described above, the contents of the specific directory are sequentially updated for each program, and the latest information is displayed to the user.

[0005]

However, the user does not always browse the display contents of the program every time the program is updated, and the program contents that have been missed are already overwritten with new contents. You cannot view it later. Although there is no problem with the contents of programs that require immediacy such as weather and news, the above-mentioned missed situation occurs because serial readings and programs that the user wants to save are also sequentially updated. To avoid this, it is feasible to save all the received data, but it needs to store a huge amount of data files that are broadcast sequentially and received, which requires a very large storage capacity. Not realistic.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and is a data broadcast receiving apparatus capable of automatically storing past program contents with a small storage capacity and displaying the stored program contents thereafter. The purpose is to provide.

[0007]

In order to solve the above-mentioned problems, a data broadcast receiving apparatus according to the present invention provides a data broadcast program in a data broadcast using a vertical blanking interval of a terrestrial television broadcast. A data packet receiving unit for receiving the data and displaying the data on a display screen, wherein the data packet decoding unit combines the data signals transmitted in the form of packets and outputs the data in packet units, and connects the data in packet units. A data file storing means for storing the data file, and extracting the converted file information described in the display name description file in the data file and updating the data file stored in the display data storage location. Data update determining means for determining whether or not the data file has been updated, and a table storing a data file group to be displayed on the display screen A data storage unit, a past data storage unit for storing a past data file group, a current data storage unit for storing a current latest data file, and a stored display data file in which contents newly received are updated. Notifying the past data storage means before updating to the data file, and notifying the newly received latest data file to the current data storage means, extracting necessary data files from the past data file and the current data file, It is provided with storage data management means for updating and storing data and using desired data as a display data file.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention receives data of a program broadcasted in a data broadcast using a vertical blanking interval of a television broadcast and displays the data on a display screen. A data broadcast receiving apparatus, comprising: a data packet decoding means for outputting a packet-by-packet data by combining a packetized and transmitted data signal;
A data file storage means for storing the data file by concatenating the data in packet units, extracting the converted file information described in the display name description file in the data file, and storing it in the display data storage location Data update determining means for determining whether or not a data file being updated has been updated, display data storing means for storing a data file group to be displayed on a display screen, and past data for storing a past data file group Storage means;
A current data storage unit for storing a current latest data file, and a notification to the past data storage unit before the stored display data file is updated to an updated data file of newly received content; and Notifying the current data storage unit of the newly received latest data file, extracting, updating, and saving necessary data files from the past data file and the current data file, and storing the desired data as a display data file. A data broadcast receiving apparatus provided with a management means, which can automatically save and display past several generations of program contents with a small storage capacity.

The invention according to claim 2 is a similar data broadcast receiving method. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a data broadcast receiving apparatus according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a tuner, which selects a desired broadcasting station from radio waves of data broadcasting.

Reference numeral 2 denotes a data packet decoding unit, which combines data signals transmitted from the signal selected by the tuner 1 in a packet form and outputs them as data packets.

Reference numeral 3 denotes a data file storage unit, which concatenates data in packet units output from the data packet decoding unit 2 and stores the data as a data file.

Numeral 4 denotes a data update judging unit, which stores a data file in a directory where the converted file name described in the display name description file stored in the data file storage unit 3 should be stored. It is determined whether a data file having the same content exists, that is, whether the program content has been updated.

Reference numeral 5 denotes a stored data management unit which stores data as one generation previous program data in the past data storage unit 7 before the data file determined by the data update determination unit 4 to be updated is updated. 8 is stored as the latest program information data. In addition, in accordance with an instruction from the control unit 10, the data stored in the past data storage unit 7 is stored in the display data storage unit 6.

Reference numeral 6 denotes a display data storage unit, and a browser 9
Stores data displayed as a data broadcast program.

Reference numeral 7 denotes a past data storage unit for storing a past data file which has been updated with the latest broadcast data and stored before its contents are deleted.

Reference numeral 8 denotes a current data storage unit, which stores the latest program information currently being broadcast.

Reference numeral 9 denotes a browser, and a display data storage unit 6
Displays the data stored in on the screen.

A control unit 10 receives a request for changing display information from a user. Next, the operation of the data broadcast receiving apparatus configured as described above will be described.

The data packet decoding unit 2 combines data signals transmitted from the data broadcast received by the tuner 1 into packets, and outputs data in packet units.
The data file storage unit 3 concatenates the data in packet units output from the data packet decoding unit 2 and stores the data as a data file. The name given to the data file is the name described at the beginning when the data in the packet unit is linked. This storage operation is performed until the display name description file is stored.

When the linked data file has a name indicating that it is a display description file, the data file storage unit 3 notifies the data update determination unit 4 of the name.

The data update determination unit 4 extracts the converted file names and converted storage directories for all the data files described in the display name description file, and assigns the same file name to the directory to be stored from now on. To check whether data files with different contents exist. When data files having the same file name but different contents exist, the storage data management unit 5 is notified that the data file is about to be updated.

The stored data management unit 5 stores the data file to be updated notified from the data update determination unit 4 in the past data storage unit 7. At this time, the data file group described in one display name description file is stored in an individual directory or the like so that it can be known when the data file was stored and in what order. After storing the data file in the past data storage unit 7, the data file received this time is stored in the directory described in the display name description file in the display data storage unit 6. At the same time, the data file received this time is also stored in the current data storage unit 8. The same determination and storage are performed for all data files described in the display name description file. If a data file having the same file name does not exist in the directory described in the display name description file, the data file is stored only in the display data storage unit 6. The operation of storing data in the past data storage unit 7 and the current data storage unit 8 is not performed for data files having the same file name and the same contents. This can save unnecessary data files.

The browser 9 displays the data stored in the display data storage 6 on the screen.

When the user gives an instruction to view past program data, the control unit 10 notifies the stored data management unit 5 via the control unit 10. The stored data management unit 5 is a past data storage unit 7
Is stored in the display data storage unit 6 in ascending order from the newest data, and the storage of data desired by the user is stored in the display data storage unit 6 by repeating storage until a desired generation. You. The past data stored in the display data storage 6 is displayed on the browser 9. When returning the display data to the current latest data again, the data currently stored in the data storage unit 8 is stored in the display data storage unit 6 to return to the latest data.

[0027]

As described above, according to the data broadcast receiving apparatus of the present invention, the program contents over the past multiple generations are automatically saved with a small storage capacity, and the saved programs can be easily read at any time thereafter. There is an effect that it can be displayed, and the effect is great.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a data broadcast receiving device according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 Tuner 2 Data packet decoding unit 3 Data file storage unit 4 Data update determination unit 5 Stored data management unit 6 Display data storage unit 7 Past data storage unit 8 Current data storage unit 9 Browser 10 Control unit

Claims (2)

[Claims] 1. A data broadcast receiving apparatus for receiving data of a program broadcasted in a data broadcast using a vertical blanking interval of a television broadcast and displaying the data on a display screen, wherein the data broadcast receiving apparatus is packetized and transmitted. A data packet decoding unit for combining the data signals to output data in packet units, a data file storage unit for connecting the data in packet units to store a data file, and a display name description file in the data file. Data update determining means for extracting the converted file information described in the above section, and determining whether the data file stored in the display data storage location has been updated, and a data file group for displaying on the display screen Display data storage means for storing the past data file group, past data storage means for storing the past data file group, A current data storage unit for storing the data file, and a notification to the past data storage unit before the stored display data file is updated to the updated data file of the newly received content, Notifying the current data storage unit of the updated latest data file, extracting, updating, and storing necessary data files from the past data file and the current data file, and storing data management unit as a display data file with desired data. A data broadcast receiving device comprising: 2. A data broadcast receiving method for receiving data of a program broadcasted in a data broadcast using a vertical blanking interval of a television broadcast and displaying the data on a display screen, wherein the data broadcast is transmitted in a packetized form. A data packet decoding step of combining data signals to output data in packet units, a data file storing step of connecting the data in packet units to store a data file, and a display name description file in the data file. A data update determining step of extracting the converted file information described in, and determining whether the data file stored in the display data storage location has been updated, and a data file group for displaying on the display screen A display data storing step of storing the past data file group, a past data storing step of storing a past data file group, A current data storing step of storing the data file, and notifying the past data storing step before the stored display data file is updated to the updated data file of the newly received content, and further receiving the newly received data file. Notifying the latest data file to the current data storage step, extracting, updating, and storing a necessary data file from the past data file and the current data file, and performing a stored data management step of setting desired data as a display data file. A data broadcast receiving method, comprising: