JP2002290351A - Function expansion method of digital data broadcasting system - Google Patents

Abstract

(57) [Summary] [Problem] To provide a mechanism that records personal information received by a viewer in a data broadcast program and can be referenced / deleted at any time, and a mechanism that can also perform personal authentication at the time of reference / deletion. The task is to In a digital data broadcasting system, information obtained from the data center is recorded in the nonvolatile storage unit of a receiver in accordance with a viewer's interactive operation,
Further, a received information record reference unit for displaying information recorded in the nonvolatile storage unit on a TV screen connected to the receiver or deleting information recorded in the nonvolatile storage unit,
Prepared as data broadcast program data described by a script, broadcast the received information record reference means from the digital broadcasting station as data broadcast program data, and interpret and execute the script by a central processing processor of a digital data broadcast receiver. Solves the above problem.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for expanding functions in a digital data broadcasting service, such as storing received information obtained through a communication line interface of a receiver in the receiver.

[0002]

2. Description of the Related Art In digital data broadcasting services, mail-order interactive programs such as television shopping, and financial interactive programs such as bank transfer and balance inquiry using a television are broadcast.

[0003]

[0005] In the above-mentioned mail-order interactive program or financial interactive program, etc., the data received by the viewer (purchase application acceptance notice, card statement, balance inquiry of bank account, etc.) is received by the receiver. And could not be referenced at any time. The present invention has been made in view of such inconvenience of the current data broadcasting, a mechanism for recording personal information received by a viewer in a data broadcasting program, a mechanism for referencing and deleting when necessary, An object of the present invention is to provide a mechanism that can perform personal authentication at the time of reference and deletion.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a digital broadcasting station for performing a data broadcasting service, a nonvolatile storage unit for storing data, a communication line interface, and a data broadcasting program data transmitted from the broadcasting station. Digital data broadcasting receiver equipped with a central processing processor that interprets them and generates a data broadcasting screen, and accepts data transmitted from this receiver via a communication network if necessary, and And a data center that returns an appropriate response, in a digital data broadcasting system configured including, according to the interactive operation of the viewer, record information obtained from the data center in the nonvolatile storage unit of the receiver, Also, the information recorded in the non-volatile storage unit is displayed on a TV screen connected to the receiver, or is stored in the non-volatile storage unit. A receiving information recording reference means for deleting the information being provided is prepared as data broadcasting program data described by a script, and the receiving information recording referring means is broadcast as data broadcasting program data from the digital broadcasting station, The central processing processor of the receiver interprets and executes the script, so that the viewer can record the data obtained from the data center to the receiver, display the recorded content, and delete the recorded content while the data broadcast program is being received. It is an object of the present invention to solve the above-mentioned problem by a method of extending the function of a digital data broadcasting system which enables the above.

[0005] By utilizing a mechanism for interpreting and executing a script provided in a digital broadcast receiver, recording and recording of the obtained data in the receiver can be performed without installing a special hardware device in the receiver. The contents can be displayed and the recorded contents can be deleted on the receiver. In addition, since the broadcasting station broadcasts data broadcast program data including a script that brings such a function extension to the receiver, it is not necessary to install special software in the receiver. Also, if the broadcasting station broadcasts such data broadcasting program data including the script all day, it is possible to refer to the received data substantially at any time.

In a second preferred aspect of the present invention, in the method for expanding a function of the digital data broadcasting system, the received information record reference means is configured to view the received data in the nonvolatile storage unit when recording the acquired data in the receiver. Recording the authentication information corresponding to the user identification information, and performing the personal authentication of the viewer when displaying the recorded content or deleting the recorded content. Operation is permitted.

[0007] If the reception information recording and referencing means is configured as described above, when a plurality of viewers share a digital broadcast receiver, such as one per household, a certain viewer records the digital broadcast receiver. It is possible to prevent the data from being viewed or deleted by other viewers.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A BS digital broadcasting system utilizing the method of the present invention will be described below. FIG.
FIG. 2 is a diagram illustrating components of an S digital broadcasting system. Reference numeral 60 denotes a broadcasting station. The broadcast signal is sent from the broadcast antenna 5 to the broadcast satellite 6. The broadcasting satellite is a geostationary satellite located above the southwest (110 degrees east, north latitude). The broadcast satellite 6 emits the broadcast signal toward the receiving antenna 7. 10 is a receiver. The viewer is the receiver 10
Is connected to the TV monitor 20 and the IC card 3
0 is inserted to receive the program. The viewer can use the remote control 40
To select and enjoy the desired program.
During data broadcast reception, the contents of the remote control
The data can be transmitted to the data center 50 via the two-way service center 51 which is a gateway through the uplink network 9. The uplink can be used as a communication channel for transmitting a request for data from a viewer or a questionnaire response, depending on the content of the program of the broadcasting station. Data center 50
Is provided with a plurality of management servers 52 according to programs.

[0009] B with enhanced function using the method of the present invention
Before describing the S digital broadcasting system, the broadcasting system of the BS digital broadcasting service will be described. The broadcasting system adopted for BS digital broadcasting is DVB (Digital Video Broadcasting).
casting: MPEG2-systems defined by a private standardization organization or standard for promoting and standardizing digital broadcasting systems in Europe. The broadcasting station digitizes elements (video, audio, data of data broadcasting) constituting the program in the BS digital broadcasting, multiplexes and sends out them.
These elements are sent to the receiver as a transport stream (TS), which is a stream format that can be received by the receiver by bundling several broadcast channels or programs.

Broadcast programs in digital broadcasting are composed of main video, main audio, and data of data broadcasting.
The data of the data broadcasting is BML (Broadcast Markup Lan)
guage). A plurality of BML files are collected to become data of one data broadcast program. The data broadcast program may have a content related to the main line (so-called ordinary television broadcast) and a content different from the main line. The data of these broadcast programs is transmitted as TS. The TS includes, in addition to the broadcast program data, program configuration information, program content guidance information, and control information for implementing pay broadcasting.

[0011] In data broadcasting, data of a data broadcasting program at that time is repeatedly and simultaneously broadcast so that a user can view a content no matter at which time the channel is tuned. This is called a carousel transmission method. For example, if there is a BML file (file 1,..., File 4) that forms each screen of one program composed of a top screen 1 and selection screens 2, 3, and 4, these four files have program contents. It will be broadcast all at once while it is the same.

FIG. 2 is a diagram for explaining the configuration of a basic function receiver used in BS digital broadcasting. The tuner section 102 and the demodulation section 103 perform channel selection and select one TS stream. The descrambling 104 descrambles the broadcast signal. By selecting a desired packet by the TS decoder 105, a specific program of a specific channel is selected. The main line video / audio signal is converted into a signal accepted by the TV monitor 20 by the MPEG decoder 113 and presented.

The working memory 106 is a storage area where data broadcasting data of a selected channel is cached (temporarily stored). When a channel is changed, or when a message indicating that the content of the data carousel has been changed is received from a broadcasting station, a new data carousel is fetched and held here.

Reference numeral 110 denotes an input / output port for receiving a signal from a remote controller operated by a viewer. Reference numeral 109 denotes a modem interface. 108 is a non-volatile memory,
Usable areas are determined for each broadcaster. The data recorded in the non-volatile memory is retained even when the power of the receiver 10 is turned off. 115 is a volatile memory. This is a temporary storage area where data can be stored only while the same channel is selected. When moving to another station, the data on the volatile memory 115 is erased. Reference numeral 111 denotes an IC card interface. It reads and writes data of the IC card 112 in which the identification information of the viewer, personal information, and the like are recorded. Reference numeral 107 denotes a central processing processor (hereinafter, CPU). The CPU 107 receives a remote control operation command or the like from the input / output port 110 and controls the receiver 10. When selecting data broadcasting, the CPU 107 reads and interprets the BML file cached in the working memory 106 to convert the data broadcasting screen data. And writes it to the video memory of the graphic controller 114. Thus, the data broadcast screen is displayed on the TV monitor 20.

BML stands for XML (eXtensible Markup La
nguage) is a description language dedicated to data broadcasting applications. The BML can describe a processing procedure in a procedural description language called ECMAScript in order to be able to express a dynamic operation on a data broadcast screen. ECMAScript
Is an object-oriented scripting language based on JavaScript. Also, DOM Level1 I / F is provided to dynamically operate each object in the document. DOM (D
ocument Object Model) is a document structure model defined for dynamically manipulating the content structure of an HTML document or an XML document. With the preparation up to this point, an embodiment of the present invention will be described below.

According to the method of extending the function of the receiver of the present invention, the data broadcast program data including the script is transmitted to the CPU 1 of the receiver.
07 and operates as a received information record reference unit. FIG. 3 is a view for explaining the recording process of the received information, which is the operation of the received information recording reference means. FIG. 4 is a flow chart for explaining the operation of the reference / deletion processing of the reception information, which is the operation of the reception information record reference means. 3 and 4 will be described below.

(Recording of Received Information) A viewer receives a program broadcast which operates as a received information recording reference means. The program data script is stored in the built-in CPU 10 of the receiver 10.
7 and, according to the viewer's interaction,
The data received by the viewer from the data center 50 is received and displayed on the TV monitor 20. The reception information record reference means displays on the TV monitor 20 an interactive interface that allows the viewer to select whether to record the reception information in the nonvolatile memory 108 (S10). To record the received information, the viewer operates the remote controller 40 and inputs a password (S13). Make sure that the password you entered is not duplicated by another registered viewer,
Check the nonvolatile memory 108. If there is no overlap, the viewer identification information and the password are recorded in the nonvolatile memory in the form as shown in FIG. Then, data obtained by adding the identification information of the writer in order to identify the writer to the reception information to be recorded is recorded at a predetermined address of the nonvolatile memory (S16). The received data recorded in the nonvolatile memory 108 includes, for example, an electronic order copy, a bill, a specification,
Information such as a bank account balance inquiry can be considered. FIG. 5 is a display example of the electronic reception data on the TV monitor 20.

(Referring of Information) The receiver which has received the program data including the portion in which the received information recording reference means is described as a script, transmits the program data to the CPU 107 in the receiver.
And broadcast the program (S20). When the viewer selects to refer to the information in the non-volatile memory 108 in the receiver by operating the remote controller 40, the program including the reception information record reference means prompts the input of personal authentication information. Viewers
A password is input by operating the remote controller 40 (S2
2). When the same password character string as that entered is in the non-volatile memory 108, the writer identification information associated with the password is read, and the received data recorded with the same writer identification information is displayed on the TV monitor 20. (S26).

(Deletion of Information) Information to be deleted is displayed on the TV monitor 20 (so far, steps S20 to S2
6). If there are a plurality of data recorded by the same writer, one of them is selected as data to be deleted (S28). Delete that information. At this time, the registered password itself can be deleted. In this case, the password data and all information entered by the person are deleted from the non-volatile memory 108 in the receiver (S3).
0). FIG. 7 illustrates an example of deletion. FIG. 7 (A)
Then, only the statement data is deleted. In FIG. 7B, since the password of Mr. A has been deleted, all the data entered by Mr. A is deleted.

[0020]

As described above, the digital data broadcasting system using the digital data broadcasting system function expansion method of the present invention has been described in detail. Conventionally, in a mail-order interactive program or a financial interactive program, data received by a viewer (such as receipt of a purchase acceptance notice or a card statement) was recorded by a receiver and could not be referred to at any time. However, according to the method of the present invention, the information received by the viewer in the data broadcast program can be recorded in the non-volatile memory of the receiver without providing special hardware and software. Further, when a data broadcast program is being received, previously recorded data can be referenced and deleted. According to the method of the present invention, information can be recorded by further attaching a password. Therefore, when one receiver is shared and used by a family or the like, the data recorded in the non-volatile memory can be viewed by others without permission. It is possible to prevent the risk of being deleted or deleted.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a BS digital broadcast.

FIG. 2 is a block diagram illustrating a configuration of a BS digital broadcast receiver.

FIG. 3 is a flowchart illustrating a reception information recording operation of a reception information recording reference unit.

FIG. 4 is a flowchart illustrating a reception information reference / deletion operation of a reception information record reference unit.

FIG. 5 is a TV monitor 20 for receiving electronic information as received information.
It is a display example.

FIG. 6 is an explanatory diagram of personal authentication data.

FIG. 7 is a diagram illustrating a reception information deletion operation of a reception information record reference unit.

[Explanation of symbols]

 5 Broadcasting Antenna 6 Broadcasting Satellite 7 Receiving Antenna 8 Uplink 9 Uplink Network 10 Digital Broadcast Receiver 20 TV Monitor 30 IC Card 40 Remote Control 50 Data Center 51 Interactive Service Center 52 Various Management Servers 60 Broadcasting Station 101 Antenna 102 Tuning Circuit 103 Demodulation circuit 104 Descramble circuit 105 Transport stream decode circuit 106 Working memory 107 CPU 108 Non-volatile memory 109 Modem interface 110 Input / output interface 111 IC card interface 112 IC card 113 MPEG decoder 114 Graphic controller 115 Volatile memory

Continued on the front page F term (reference) 5C025 CB08 CB09 CB10 DA01 DA04 DA05 5C063 AB03 AB07 AB10 DA07 EB07 EB29 EB32 EB33 EB35 5C064 BA01 BB01 BB07 BC06 BC07 BC16 BC20 BD03 BD04 BD05 BD09

Claims (2)

[Claims] 1. A digital broadcasting station for performing a data broadcasting service, a non-volatile storage unit for storing data, a communication line interface, and data broadcasting program data transmitted from the broadcasting station. A digital data broadcast receiver having a central processing processor for generating, a data center for receiving data transmitted from the receiver via a communication network as necessary, and returning an appropriate response as necessary, In the digital data broadcasting system configured to include information recorded in the non-volatile storage unit of the receiver, the information obtained from the data center is recorded according to the interactive operation of the viewer, and is recorded in the non-volatile storage unit. Received information for displaying information on a TV screen connected to the receiver or deleting information recorded in the non-volatile storage unit The recording reference means is prepared as data broadcast program data described by a script, and the reception information recording reference means is broadcast from the digital broadcasting station as data broadcast program data, and the central processing processor of the digital data broadcast receiver executes the script. By interpreting and executing, a digital data broadcasting system that enables the viewer to record the data obtained from the data center in the receiver, display the recorded contents, and delete the recorded contents while the data broadcast program is being received. Function expansion method. 2. The method for expanding functions of a digital data broadcasting system according to claim 1, wherein said reception information record reference means stores the viewer identification information in said non-volatile storage unit when recording the obtained data in a receiver. And the step of recording the authentication information corresponding to and the step of performing the personal authentication of the viewer when displaying the recorded content or deleting the recorded content, and performing the desired operation only when the user is properly authenticated. A method for extending the functions of a digital data broadcasting system that is permitted.