JP3186564B2 - Method for interrupting commercial screen in data broadcasting system and method for displaying screen on receiving side in data broadcasting system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for interrupting a commercial screen in a data broadcasting system and a method for displaying a screen on a receiving side in the data broadcasting system.

[0002]

2. Description of the Related Art FM multiplex broadcasting is to broadcast audio, text, graphics, etc. together with stereo sound. That is,
It multiplexes sound, text, and graphics on a normal FM broadcast and broadcasts it.

[0003] Typical representatives of FM multiplex broadcasting standards include:
There are three systems: DARC (Data Radio Channel), fixed reception system, and RDS (Radio Data System). Among them, DARC is the newest and has been adopted as an international standard. DARC is based on ITU-R (International Tele
communication Union), and is described in accordance with Recommendation 807 “Reference Model for Data Broadcasting”.

The DARC converts characters and figures into digital information, modulates a subcarrier frequency of 76 kHz, frequency-multiplexes the stereo baseband signal, and performs FM modulation for broadcasting.

FIG. 16 shows a hierarchical structure representing a DARC character / graphic encoding method.

[0006] In layer 1, transmission path characteristics are specified. The multiplex signal is superimposed on a higher frequency side than the L + R signal and the LR signal which are the normal FM stereo broadcast signals. This superposition scheme, taking into account that the interference with the multiplex signal or et audio signal becomes significant when a small voice modulation, LMSK to control the level of the multiplexed signal by the modulation of the L-R signal (Level Controlled Minimum Shi
ft Keying) method is adopted.

[0007] The layer 2 defines a data frame configuration including an error correction method. Each frame is composed of 272 blocks in the column direction, and a 16-bit block identification code (BIC) is added at the beginning, and frame synchronization and block synchronization are performed based on the block identification code. Of the 272 blocks in the column direction, 190 blocks are packets for transmitting data, and 82 blocks are parity packets for transmitting parity in the column direction. Each packet is 1 in the row direction
It is composed of a 76-bit data part, a 14-bit CRC (Cyclic Redundancy Code) that is an error detection code, and an 82-bit parity part.

[0008] The transmission data is subjected to error correction at this hierarchical stage with this one frame as a basic unit.
Actually, as shown in FIG. 17, transmission data is transmitted in a frame configuration in which packets and parity packets are rearranged in a predetermined order in the vertical direction.

[0009] Layer 3 defines the structure of a data packet. The data packet is one of each row in the frame.
It consists of 176 bits excluding BIC, CRC and parity. A data packet is composed of a prefix and a data block.

Level 4 shows the structure of a data group. A data group is composed of one or a plurality of data blocks. This data group also includes a CRC which is an error detection code, and transmission data is subjected to error detection also in this layer. One data group corresponds to one page of data.

The layer 5 defines a group of information transmitted by FM multiplex broadcasting, that is, a structure of program data.

FIG. 18 shows the structure of a data packet of the third layer.

The prefix in the data packet includes:
A service identification code is included. As shown in Table 1, this service identification code is composed of 4 bits b1 to b4, and identifies the program contents (general information, traffic information, additional information, auxiliary information, operation signals).

[0014]

[Table 1]

FIG. 19 shows the structure of the program data of layer 5.

The program data is composed of a plurality of data groups. The first group is program management data including information on the entire program such as the program number and the total number of pages. The second and subsequent groups are page data. Each page data includes data for each page.

The program management data includes a program data header,
It is composed of one or more data units (data unit group) of program management data. Each page data is composed of a page data header and one or a plurality of page data units (data unit group).

FIG. 20 shows the structure of the program data header.

The program data header comprises a data header identification code and data header data. The data header data includes the program number, total number of pages, presentation function, information type,
It consists of a display format and a program content update flag.

The program number is composed of 8 bits, and indicates the program number by a binary value. Program numbers are from 0 to 255. That is, a maximum of 256 types of programs can be broadcast for one service identification code (see FIG. 18).

The program content update flag is composed of two bits.
This shows update of a program unit. Each time it is updated, it is incremented by 2 bits. That is, the sequence is repeated as 00 → 01 → 11 → 00.

The total number of pages is composed of 6 bits, and the number of pages constituting a program is indicated by a binary value. The total number of pages excluding the program management data is shown. The total number of pages is 0
If the total number is up to 63 and the total number of pages is 0, it indicates that there is no page data. That is, the maximum number of pages of one program is 63.

The presentation function consists of 8 bits and indicates the type of code and the type of presentation included in the program. The information type is composed of 4 bits and identifies the genre of the program contents. The display format is composed of 4 bits and specifies a display mode.

FIG. 21 shows the structure of a data unit of the program management data.

The data unit of the program management data includes a data unit identification code indicating the type of the data unit, a data unit ring flag (DUL) indicating the connection between the data units, a data unit size indicating the data unit length, and a data unit size. And data unit data composed of data of the number of data indicated by the unit length.

FIG. 22 shows the structure of the page data header.

The page data header is composed of a data header identification code and data header data. The data header data includes a program number, a page number, a presentation function, an information type, a display format, and a page content update flag.

The program number, presentation function, information type and display format are the same as the program number, presentation function, information type and display format of the program management data header.

The page content update flag is composed of 2 bits, and indicates the update of the content of each page. Each time it is updated, it is incremented by 2 bits. That is, 00 → 01 → 11
→ It is repeated like 00.

The page number is composed of 6 bits and indicates the page of the program by a binary value. The presentation function consists of 8 bits, and indicates the type of code included in the program and the type of presentation.

FIG. 23 shows the structure of a data unit of page data.

The data unit of the page data includes a data unit identification code indicating the type of the data unit, a data unit ring flag (DUL) indicating the connection between the data units, a data unit size indicating the data unit length, and a data unit size. And data unit data including data of the number of data indicated by the length.

[0033]

SUMMARY OF THE INVENTION The present applicant has developed an FM multiplex broadcast program which conforms to DARC, which is a standard for FM multiplex broadcast, and which has a different taste from the current FM multiplex broadcast program. Advanced. For example, TV broadcasting, F
A quiz program related to the progress of a sports program provided by a broadcast other than the multiplex broadcast such as the M broadcast is broadcast by the FM multiplex broadcast in real time. At this time, both a program execution program for executing the program and program configuration data (data such as characters, graphics, audio, etc.) constituting the program are transmitted by FM multiplex broadcasting.

The user is allowed to input the answer to the quiz presented in the quiz program, and then the correct answer is broadcast by FM multiplex broadcasting. Then, the response result is recorded on a card or the like in the receiving terminal, and the user presents the card to a convenience store or the like so that the user can receive a predetermined service.

For example, when a music program is broadcast by radio broadcasting, the FM multiplex broadcast asks "Who is the singer singing this song?" And "(1) singer name 1,
(2) Singer name 2 and (3) Singer name 3 "are displayed.

Alternatively, when a baseball broadcast program is being broadcast on a television broadcast, the FM multiplex broadcast asks, "Can a batter go to the base?" And "(1)
Hit, (2) home run, and (3) out ".

It is also conceivable that a quiz program unrelated to broadcasting other than multiplex broadcasting is broadcast by FM multiplex broadcasting.

As a problem in performing such FM multiplex broadcasting, there are the following problems. (A) To provide a program executed by the transmitted program by multiplex broadcasting. In particular, the provision of programs related to the progress of broadcast programs other than multiplex broadcasting by multiplex broadcasting. (B) To increase the number of programs. Previously, the maximum number of programs was
It was 25 6. (C) The number of data in one screen may be small, but the number of screens in one program is increased. Conventionally, one page data = 1
A screen data, the maximum number of screens in one program was 6 4 screen. (D) A commercial program including a plurality of types of commercial screens is transmitted in advance and stored in the terminal, and a predetermined number of commercial screens are interrupted and displayed after a predetermined screen displayed by another program. In other words, the screen of another program is interrupted and displayed after the screen displayed for an arbitrary program.

According to the present invention, while a data broadcast program is being displayed, the CM data already received and held is stored.
It is an object of the present invention to provide a commercial screen interrupting method for a data broadcasting system and a receiving-side screen display method in a data broadcasting system, which can interrupt a commercial screen of a broadcasting program .

[0040]

Means for Solving the Problems] Commercial screen interrupt process the data broadcasting system according to the invention is especially
In the middle of the constant of the data broadcast program is being displayed, already
Of commercial data broadcast programs received and held by
Komashi of data broadcasting system to interrupt the turbocharger Le screen
A screen interrupt method for a CM data broadcast program which should be interrupted and displayed on a specific screen data among screen data constituting a specific data broadcast program after the screen is displayed. put commercial screen interrupt command data for specifying a commercial <br/> screen and sends the screen data, the receiving side, the data broadcast program that contains the screen data including the commercial screen interrupt instruction data by the user when selected and the screen data including the commercial screen interrupt command data is displayed, the next, the frame
The corresponding frame based on the
C specified by the initial screen interrupt command data
A commercial screen of an M data broadcast program is displayed.

[0041]

A method for displaying a screen on the receiving side in a data broadcasting system according to the present invention is a method for displaying a specific
While is displayed, already received and held
Commercial screen of commercial data broadcast program
A screen display method on a receiving side, wherein a commercial screen of a CM data broadcast program to be interrupted and displayed after the screen is displayed on a specific screen data of the screen data constituting the specific data broadcast program and commercial screen interrupt command data is put for specifying, the screen data are transmitted from the transmitting side, the data broadcast program that contains the screen data including the commercial screen interrupt instruction data by the user is selected and when the screen data including the commercial screen interrupt command data is displayed, the next, the commercial
Based on Le screen interrupt command data, the Commercial
And displaying a commercial screen of a CM data broadcast program specified by the screen interrupt command data.

[0043]

[0044]

Embodiments of the present invention will be described below with reference to the drawings.

[1] Description of transmission system

FIG. 1 shows the configuration of a transmission system provided on the broadcast station side.

This transmission system includes an FM multiplex broadcast program (hereinafter, referred to as a general FM multiplex broadcast program) having a service type different from that of a general FM multiplex broadcast program, in addition to an FM multiplex broadcast program conventionally broadcasted. (A specific FM multiplex broadcast program).

The programs provided by the specific FM multiplex broadcast program include a program execution program (hereinafter simply referred to as a program) for executing the program, such as a quiz program and a game program, and program configuration data constituting the program. There are information service programs such as a program type program in which both (data such as characters and graphics) are transmitted, a weather forecast, and a coma-shar program described later.

The program-type programs include program-linked program-type programs in which program data is transmitted in predetermined transmission units in accordance with the progress of broadcast programs other than multiplex broadcasting such as television broadcasting and FM broadcasting. There is a stored program type program in which program data is sequentially transmitted in a predetermined transmission unit regardless of the progress of the broadcast program.

The FM broadcast program production / transmission device 11
Produce and send out broadcast programs. General program input terminal 12
Is for inputting data of a general FM multiplex broadcast program. The general program scheduling transmission control unit 13 organizes data input from the general program input terminal 12 and
The multiplex broadcast program is formed, and the formed data is formed into a transmission format and transmitted.

The specific program input terminal 14 is for inputting data of a specific FM multiplex broadcast program. The specific program scheduling transmission control section 15 organizes the data input from the specific program input terminal 14, forms a specific FM multiplex broadcast program, and forms and transmits the organized data in a transmission format.

The combining and sending control section 16 combines the general FM multiplex broadcasting program sent from the general program scheduling sending control section 13 with the specific FM multiplex broadcasting program sent from the specific program scheduling sending control section 15 and sends it. I do.

The LMSK modulator 17 is provided with the composite transmission control unit 1
The multiplexed signal transmitted from the FM broadcast program production / transmission device 11 is adjusted according to the level of the audio signal transmitted from the FM broadcast program
Perform SK modulation.

The adder 18 adds the output of the FM broadcast program production / transmission device 11 and the output of the LMSK modulator 17. The FM modulator 19 FM-modulates the output of the adder 18. The transmitter 20 transmits the output of the FM modulator 19.

[2] Description of receiving system

FIG. 2 shows the appearance of the receiving system.

The receiving system includes a receiving device 21 and a remote controller 22. A display 31 such as a fluorescent display tube for displaying characters and graphics transmitted by FM multiplex broadcasting, and a card insertion / ejection port 32 for inserting / ejecting the card 30 are provided on the front surface of the receiving device 21. , Various indicator lights, various operation keys, and the like. The remote controller 22 is for remotely operating the receiving device 21.

FIG. 3 shows an electrical configuration of the receiving device 21.

Here, for convenience of explanation, the receiving device 21
Is to store only a specific FM multiplex broadcast program of a general FM multiplex broadcast program and a specific FM multiplex broadcast program and display the same on a display.

The audio signal is reproduced through an amplifier 43 and a speaker 44 after a high frequency component is removed from an output signal of the FM tuner 41 by an LPF (low-pass filter) 42.

From the output signal of the FM tuner 41, the audio component and the noise component are removed from the output signal of the FM tuner 41 by the band-pass filter (BPF) 45, and the multiplex signal (LMSK signal) is extracted. The extracted multiplexed signal is supplied to the LMSK demodulation circuit 4
6 undergoes MSK demodulation.

The signal obtained by the LMSK demodulation circuit 46 is sent to an error correction circuit 47, where error correction is performed. After this error correction, the obtained data is temporarily stored in the first R
It is stored in AM53. Thereafter, the CPU 50 executes the first R
Only the specific FM multiplex broadcast program is selected from the data stored in the AM 53, the data is reorganized for each program, and stored in the second RAM 54. The ROM 51 includes a CPU 50
And the like are stored. Also, the kanji ROM 52
Stores the font displayed on the display 31.

The sound effect generator 48 generates sound signals of a plurality of predetermined sound effects.
The sound signal of the type of sound effect specified by the instruction by the command 50 is output for a specified time. Sound effect generator 48
Are output via the amplifier 43 and the speaker 44.

The card reader 55 is for reading a two-dimensional bar code recorded on the card 30 inserted into the card insertion / ejection port 32. Card writer 56
Is the card 30 inserted into the card insertion / ejection port 32
For writing two-dimensional barcodes or characters. The barcode information recorded on the card 30 or recorded in advance includes personal information relating to the user who uses the receiving device 21, information indicating a response result to a quiz program, information specifying a program, and the like.

The infrared sensor 57 receives the infrared ray transmitted from the remote controller 22 and converts it into an electric signal.

When a user selects a program by operating the remote controller 22 or by inserting a card 30 on which program designation information is recorded,
The CPU 50 decodes the data of the selected program and displays it on the display 31. If the selected program is a program-type program including a program in the program data, the CPU 50 executes the program according to the program.

[3] Data packet and program data

As described above, the prefix (see FIG. 18) in the data packet contains the service identification code. For a specific FM multiplex, the service identification code is different from the code already assigned to the general FM multiplex (see Table 1), for example, "".
0111 ”(= 7 _H ).
The service identification code in the prefix in the data packet for the specific FM multiplex broadcast program is “0111”.

As described above, the program data (FIG. 1)
9) comprises program management data and one or a plurality of page data. The program management data includes a program data header and one or more data units of the program management data. The page data includes a page data header and one or a plurality of page data data units. As described above, the program data header (see FIG. 20) and the page data header (see FIG. 22) include the information type for identifying the genre of the program contents.

For a specific FM multiplex broadcast, the information type is a code different from the code already assigned to the general FM multiplex broadcast, for example, “0010” (= 2 _H ).
Is assigned. Therefore, the information type in the program data header and the page data header in the program data is “0010”.

As described above, the data unit of the program management data (see FIG. 21) and the data unit of the page data (see FIG. 23) include data unit parameters. As a data unit parameter, a parameter Pa (for example, 60h) representing management data of a program-type program and a parameter Pb (for example, 60h) representing a program of a program-type program are provided as data unit parameters in order to provide a program with a specific FM multiplex broadcast.
61h) and a parameter Pc (for example, 62h) representing data (characters, graphic data, etc.) are added.

That is, in the data unit of the program management data including the management data of the program type program, the parameter P is used as the data unit parameter.
a is inserted. In a data unit of page data including a program of a program type program, a parameter P is set as the data unit parameter.
b is inserted. In a data unit of page data including character and graphic data of a program type program or an information service program, a parameter Pc is entered as a data unit parameter.

FIG. 4 shows the structure of the data unit data in the data unit of the program management data in which the data unit parameter is the parameter Pa indicating the management data of the program type program.

This data unit data consists of a type code (sub-program code) and one or more segments following it. The type code is a code for subdividing a program number (hereinafter, referred to as a main program number) (see FIGS. 20 and 22), and is represented by 2 bytes (16 bits). That is, the type code allows a plurality of sub-program numbers to be set for one main program number. Since the type code is represented by 16 bits, a sub-program number of 0 to 65535 can be set for each main program number, and the number of programs can be greatly increased.

Each segment is composed of a segment length, a program control number, and parameters. The program control information includes an operation mode, a program start date, a program deadline date, a program erasure date, a commercial data valid period, and the like. The operation mode includes the program link mode,
There are a storage mode, an information service mode, and the like, and these specifications are specified by parameters in the segment.

The program link mode is specified in the data unit data for the program link program. The storage mode is specified in the data unit data for the stored program type program. The information service mode is specified in data unit data for the information service program.

FIG. 5 shows the structure of data unit data in a page data data unit (hereinafter referred to as a program unit) in which the data unit parameter is a parameter Pb indicating a program of a program type program.

The data unit data in the program unit includes a type code for subdividing the program number, a module number for separating the contents of the program specified by the program number and the type code, and one or more subsequent module numbers. And segments. Each segment contains a program. That is, each segment includes a segment length indicating the length of the segment, a line number indicating a line number of the program, a command number indicating the contents of the program command, and an argument.

FIG. 6 shows the structure of data unit data in a data unit of page data (hereinafter referred to as a screen data unit) in which the data unit parameter is a parameter Pc indicating data.

The data unit data in the screen data unit includes a type code for segmenting the program number, a module number for separating the contents of the program specified by the program number and the type code, and one or more subsequent module numbers. Segment. Each segment is composed of a segment length representing the length of the segment and data for one screen.

Therefore, in a specific FM multiplex broadcast program, each screen data unit in each page data in the program data includes one or a plurality of screen data. That is, in a general FM multiplex broadcast program, one page, that is, data of one screen is included in each page data in the program data. In a specific FM multiplex broadcast program, each page data in the program data is included. Although the number of data for one screen is small, data for many screens can be included therein.

[4] Description of data transmission of program-linked program

FIG. 7 shows how data of a program-linked program is transmitted. The transmission unit is one module unit or a plurality of module units.
Here, it is assumed that the transmission unit is one module unit. Therefore, one unit of transmission data includes one program management data (including a program data header and a data unit data) and one page data (a program unit and a screen data unit corresponding to a page data header and one module number). Including).

When the data of the program-linked program is transmitted, the content update flag (see FIG. 20) in the program data header and the content update flag (see FIG. 22) in the page data header indicate the content of the transmission unit. Updated each time it is different. However, each transmission unit is continuously transmitted two or three times without changing the update flag.

[5] Description of data transmission of storage type program program

FIG. 8 shows a state in which data of a storage-type program program is transmitted. The transmission unit is one module unit or a plurality of module units. Here, it is assumed that the transmission unit is one module unit. However, the program management data is transmitted only at the beginning.
Therefore, the first unit of transmission data includes one program management data (including a program data header and data unit data) and one page data (a page data header and a program unit and screen data corresponding to one module number). Unit). The second and subsequent transmission units are composed of one page data (including a page data header and a program unit and a screen data unit corresponding to one module number).

When the data of the storage type program program is transmitted, the content update flag of the page data header (FIG. 2)
2) is not updated even if the content of the transmission unit changes. However, each transmission unit is 2 to 2 without changing the update flag.
It is sent out three times in a row.

[6] Description of Data Transmission of Information Service Program

FIG. 9 shows how the data of the information service program is transmitted. The transmission unit is one module unit or a plurality of module units. Here, it is assumed that the transmission unit is one module unit.
One unit of transmission data includes one program management data (including a program data header and data unit data) and one program management data.
One page data (including a page data header and a screen data unit corresponding to one module number)
Consists of

When transmitting data of the information service program, the content update flag in the program data header (see FIG. 20) and the content update flag in the page data header (FIG. 2)
2) is updated each time the content of the transmission unit is different. However, each transmission unit is 2 to 2 without changing the update flag.
It is sent out three times in a row.

[7] Description of editing and transmission processing by specific program scheduling transmission control section 15 of the transmission system

FIG. 10 shows the editing and transmission processing procedure of the specific program scheduling transmission control section 15 of the transmission system shown in FIG.

Each time a next transmission instruction is input manually or based on time (step 1), data for the next one transmission unit is edited (step 2). And
The edited transmission data for one transmission unit is continuously transmitted two or three times (step 3). When all the data to be transmitted has been transmitted (step 4), the process ends.

[8] Description of Program Data Storage Processing by CPU 50 of Receiving System

FIG. 11 shows the first RAM 53 of the receiving apparatus 21.
Shows a program data storage process that is temporarily stored in the data and is performed on data determined to be a specific FM multiplex broadcast program by the service identification code. FIG. 11 shows processing for data (including new data) whose content update flag has been updated.

First, a data unit (a data unit for program management data or a data unit for page data)
Is taken out (step 11). It is determined whether the extracted data unit is a data unit of the program management data (step 12). If the extracted data unit is not the data unit of the program management data, it is determined that the data cannot be extracted from the beginning of the program or the beginning of the transmission unit, and among the data units that are continuous with the extracted data unit, Data units having the same content update flag are discarded (step 1)
9). Then, the process returns to step 11.

If the data unit extracted in step 11 is a data unit of program management data,
The contents of the data unit of the extracted program management data are checked (step 13), and the receiving device (terminal) is used.
21 determines whether the program can be received (step 14). If the receiving device determines that the program cannot be received, the process proceeds to step 19, and among the data units that are continuous with the extracted data unit, the data unit having the same content update flag is discarded. Then, the process returns to step 11.

In step 14, the receiving device 21
If it is determined that the program can be received by
The contents of the data unit of the extracted program management data are stored in the second RAM 54 (step 15).

Then, it is determined whether there is a data unit (program data unit or screen data unit) of page data related to the data unit of the extracted program management data (step 16).
If there is a data unit of the page data to be taken out, one data unit of the page data is taken out (step 17). Then, the content of the data unit of the extracted page data is stored in the second RAM 54 (step 18).

Then, the process returns to step S16, and if there is a data unit of page data, the processes of steps S17 and S18 are repeated. In this way, data (including new data) whose content update flag has been updated is stored in the second RAM 54.

If it is determined in step 16 that the data unit of the page data does not exist, step 1
Return to 1.

[0102]

[9] Description of Program Type Program Execution Processing by CPU 50 of Receiving System

FIG. 12 shows the CP of the receiving system when the channel of the program type program is designated by the user.
9 shows a program execution processing procedure performed by U50.

When the channel of the program type program is designated by the user, the program start date and the like in the contents of the data unit of the program management data stored in the second RAM 54 are checked (step 21). It is determined whether or not execution is possible (step 22).

If it is determined that the program can be executed, it is determined whether a program command of the program is stored in the second RAM 54 (step 23).
If a program command is stored, a command for one line is extracted (step 24). If the fetched command is not an end command (step 2
5), the fetched command is executed (step 2)
6). Then, the process returns to step 23.

If it is determined in step 23 that the program command of the program is not stored in the second RAM 54, the process waits for the program command of the program to be stored in the second RAM 54. If the program command of the program is stored in the second RAM 54 before the predetermined time has elapsed (NO in step 27, YES in step 23), the process proceeds to step 24, and one line of command is extracted. 2nd RAM even after a certain time
If the command is not stored in 54 (step 27
YES), an error message is displayed on the display 31 (step 28), and the process of executing the program ends.

If it is determined in step 25 that the command extracted in step 23 is an end command, the execution processing of the program ends.

[10] Description of Specific Example of Program Linked Program Type Program

FIG. 13 shows an example of a program-linked program type program. This program-linked program type program is executed in conjunction with a television baseball relay program. FIG. 13 shows a program for executing the program, screen data displayed by the program, and an overall flow.

First, each program command shown in FIG. 13 will be briefly described. In the following program commands, arguments in parentheses indicate arguments.

(1) DISP (Module No.), (Item No.), (Display Seconds), (Display Attribute) Content: Command for displaying one screen of received data. Module number: Module number of data to be displayed Item number: Item number of data to be displayed Display seconds: Data display seconds Display attributes: Data display attributes (normal display, scroll,
Opening of the curtain, dropping characters, etc.)

(2) SOUND (type), (volume), (number of repetitions) Content: Command for outputting a sound effect. Type: Sound effect type Volume: Sound effect volume Repeat count: Sound effect repeat count

(3) INPUTG (variable), (number of digits), ((FROM)
(Number), ((TO) number), (error value), (countdown seconds), (module number), ((FROM) item number), ((TO) item number), (display seconds), (display (Attribute) Contents: Command to store the input numerical value while displaying the received data for one or more screens. Variable: Variable name for storing the input result (for example, K%) Digits: Maximum input digits (FROM, TO) No .: Input range Error value: Set when a valid number is not input after countdown Countdown seconds: Input Standby time Module number: Module number of data to be displayed Item number: Item number of data to be displayed Display seconds: Data display seconds Display attribute: Data display attribute

(4) ONGOTO (variable), (line 1), (line 2) ... Content: A command for branching to a given line according to the content of a given variable. If the given variable is 1, branch to line 1; if the variable is 2, branch to line 2.

(5) GOTO (line number) Description: Command for branching to a specified line.

(6) FIELDDB (field variable), (digit length),
(Variable 1), (Digit length), (Variable 2) ... Content: Command to define print field of 2D barcode. Field variable: Print field variable name to be defined (for example, A &) Digit length: Byte length of variable to be set Variable: Variable name to be defined as a field (for example, K
%)

(7) PUTB (field variable), content: command for printing a two-dimensional barcode.

(8) LLOCATE (X position), (Y position) Contents: Command for specifying the print position. X position: X position to start printing Y position: Y position to start printing

(9) VSET (Variable 1), (Variable 2) Content: Command for copying the content of Variable 2 to Variable 1. For example, it is used to convert a numeric variable to a character variable (print data).

(10) LPRINT (character string type variable), content: command for printing a character string type variable on a card.

(11) ENDC Description: Command for ending the program. There are many other program commands in addition to those described above, but their description is omitted.

Referring to FIG. 13, the process of executing a program-linked program will be described.

First, at the start time of the program, the start of the program is displayed (step 31). The display of the start of the program is performed based on the program of module number 1 and the screen data which have already been received and stored in the second RAM 54. In FIG. 13, a in [a, b] is
A module number and b indicate an item number.

In step 31, the DISP of line 1001 is
Based on the command, "Start of professional baseball quiz" of the screen data [1, 1] is displayed, and based on the 1001 line DISP command, "" of the screen data [1, 1] is displayed.
Please wait ”is displayed.

Next, when it is time to raise a question, the sending system sends out a program and screen data for setting the question as page data of module number 2. When the page data of module number 2 is received, the following processing is performed based on the received data.

First, a sound effect is output (step 3).
2). That is, the sound effect “jajan” is output for one second based on the 1003 line SOUND command.

Thereafter, a question is displayed and an answer input is awaited (step 33). That is, based on the INPUT command of the 1004 line, the screen data [2,
After "1. Start now, this at-bat hit or home run" is displayed and "(1) Hit (2) home run" of the screen data [2, 2] is displayed, the system waits for an answer.

Next, a confirmation display of the answer is performed (step 34). The processing in step 34 is performed on lines 1005 to 10
It is executed based on the 11th line command. If there is no answer input within the answer waiting time (countdown seconds) specified by the 1004th line INPUTG command, 100
Based on the six lines of DISP commands, screen data [2,
3) "No answer input" is displayed. And 1007
Based on the GOTO command on the line, the process proceeds to line 1012 of module number 3.

If the answer input is “1”, 100
The process proceeds to line 1008 based on the ONGOTO command of five lines, and "hit" of the screen data [2, 4] is displayed based on the DISP command of line 1008. Then, based on the GOTO command of the 1009 line, the process proceeds to the 1012 line of the module number 3.

If the answer input is “2”, 100
Proceeding to line 1010 based on the ONGOTO command of line 5, the screen data [2,5] "Home run" is displayed based on the DISP command of line 1010. Then, based on the GOTO command of the 1011 line, the process proceeds to the 1012 line of the module number 3.

In the relayed baseball game, when a result for the above problem is obtained, a program and screen data for displaying a correct answer and printing an answer are transmitted as page data of module number 3 from the transmission system. When the page data of the module number 3 is received, the following processing is performed based on the received data.

First, the correct answer is displayed (step 3
5). That is, the DIS of line 1012 of module number 3
Based on the P command, “correct answer was a home run” of the screen data [3, 1] is displayed.

The user's answer is printed on the card 30 by a two-dimensional bar code (step 36). That is, 10
After the print field is defined by the 13-line FIELDDB command, the answer of the user is printed on the card 30 by the 1014-line PUTB command.

Next, the answer of the user is printed in characters on the card 30 (step 37). That is, LL of 1015 rows
The print position is specified based on the OCATE command.
Based on the VSET command on line 1016, the user's answer is converted into a character code. LPRINT of line 1017
The user's answer is printed on the card 30 based on the command. Then, the current program is ended by the ENDC command in line 1018.

[11] Explanation of screen interruption display of other programs

In the specific FM multiplex broadcasting, a commercial program composed of a plurality of commercial (CM) screens is transmitted in advance and stored in the second RAM 54 of the receiving system, and another program, for example, an information service program such as a weather forecast is displayed. During the display of, a function to interrupt and display a commercial screen in a commercial program is provided.

FIG. 14 shows the state of the second RAM 54 received in advance.
3 shows a commercial program stored in the program. In this example, the commercial program includes CM screens 1 to N.

In a program for which a commercial program CM screen is to be interrupted during program display (hereinafter referred to as a main program), interruption of the CM screen is designated as follows. The data unit of the main program (data unit of page data whose data unit parameter is 62H) includes:
As shown in FIG. 6, data unit data is included. The data unit data includes one or a plurality of segments. Each segment has 1
Screen data is included.

[0139] When inserting the commercials screen after the display screen with a main program, as shown in FIG. 15, the head of one screen data corresponding to the display screen, for example, CM like "1F _H c" An interrupt command (other program interrupt command) is inserted in advance in the transmission system.

CM interrupt command “1F _H c” In"
c "is a variable indicating the number of screens. CM interrupt command"
“1F _H c” indicates that, after the one-screen data is displayed, the commercial screens for the number of screens designated by “c” are displayed.

Therefore, for example, when the CM interrupt command “1F _H 1” is included at the beginning of the screen data of the main program, the CPU 50 displays the latest past in the CM program after the screen is displayed. CM displayed in
The CM screen next to the screen is displayed. That is, every time a screen including the CM interrupt command at the beginning of the screen data is displayed, the screen in the CM program is displayed so as to cyclically cycle through the CM program by the designated number of sheets. .

Note that data indicating the display valid period may be included in each screen in the CM program, and display of the screen may be permitted only during the display valid period.

Note that, in the above embodiment, the present invention is
Although the case where the present invention is applied to M multiplex broadcasting has been described, the present invention can also be applied to data broadcasting other than FM multiplex broadcasting (teletext broadcasting of television broadcasting, etc.).

[0144]

According to the present invention, it is possible to interrupt the screen data of another data broadcast program while the data broadcast program is being displayed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a transmission system.

FIG. 2 is a perspective view illustrating an appearance of a receiving system.

FIG. 3 is a block diagram illustrating a configuration of a receiving system.

FIG. 4 is a schematic diagram showing a configuration of data unit data in a data unit of program management data in which a data unit parameter is a parameter Pa representing management data of a program type program.

FIG. 5 is a schematic diagram showing a configuration of data unit data in a data unit of page data in which a data unit parameter is a parameter Pb representing a program of a program type program.

FIG. 6 is a schematic diagram showing a configuration of data unit data in a data unit of page data in which a data unit parameter is a parameter Pc representing data.

FIG. 7 is a time chart showing a method of transmitting a program linked with a program.

FIG. 8 is a time chart showing a method of transmitting a stored program type program.

FIG. 9 is a time chart showing a method of transmitting an information service program.

FIG. 10 is a flowchart illustrating a scheduling / transmission processing procedure by a specific program scheduling transmission control unit of the transmission system.

FIG. 11 is a flowchart showing a procedure of a program data storing process by a CPU of the receiving system.

FIG. 12 is a flowchart showing a processing procedure of executing a program of a program by a CPU of the receiving system.

FIG. 13 is a flowchart showing an execution process of a program linked with a program.

FIG. 14 is a schematic diagram showing data of a commercial program.

FIG. 15 is a schematic diagram showing one screen data area corresponding to the display screen when a commercial screen is interrupted after a display screen having a main program.

FIG. 16 is a schematic diagram showing a hierarchical structure representing a DARC character / graphic encoding method.

FIG. 17 is a schematic diagram showing a DARC frame configuration.

FIG. 18 is a schematic diagram illustrating a configuration of a data packet of layer 3;

FIG. 19 is a schematic diagram showing a configuration of program data of layer 5;

FIG. 20 is a schematic diagram showing a configuration of a program data header.

FIG. 21 is a schematic diagram showing a configuration of a data unit of program management data.

FIG. 22 is a schematic diagram showing a configuration of a page data header.

FIG. 23 is a schematic diagram showing a configuration of a data unit of page data.

[Explanation of symbols]

 14 Specific program input terminal 15 Specific program scheduling transmission control unit 17 LMSK modulator 19 FM modulator 20 Transmitter 21 Receiver 22 Remote controller 31 Display 41 FM tuner 45 BPF 46 LMSK demodulation circuit 47 Error correction circuit 50 CPU 51 ROM 52 Kanji ROM 53 First RAM 54 Second RAM

──────────────────────────────────────────────────の Continued on the front page (72) Yoshinori Tomita 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Masahiro Seto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Software Co., Ltd. (72) Inventor ▲ Yoshi ▼ Hara Ryuji 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Software Co., Ltd. (72) Inventor Hiromichi Suzuki Port of Tokyo 6-14-15 Shirokane-ku, Tokyo Media Marketing Network (56) References JP-A-8-18521 (JP, A) JP-A-63-209243 (JP, A) Toru Kuroda, " FM Teletext Multiplex Broadcasting Mechanism and Principles ", Electronics Life, No. 749, p. 16-28, January 1995 (58) Fields investigated (Int. Cl. ⁷ , DB name) H04H 1/00-1/02 H04N ⁷ /00-7/20

Claims (2)

(57) [Claims] 1. While a specific data broadcast program is being displayed, a CM data already received and held is stored.
A commercial screen interrupt method of a data broadcasting system for interrupting a commercial screen of a data broadcast program , wherein the transmitting side displays the screen on specific screen data among screen data constituting a specific data broadcast program. commercial for identifying commercial screen CM data broadcast program to be interrupt-displayed after being
The screen data is transmitted by inputting the screen interrupt command data, and the user selects a data broadcast program including the screen data including the commercial screen interrupt command data on the receiving side, and interrupts the commercial screen. when the screen data including the instruction data is displayed, the next, and characterized in that based on the commercial screen interrupt command data to display commercial screen of the CM data broadcast program specified by the commercial screen interrupt command data commerce of the data broadcasting system
Shall screen interrupt method. 2. A method in which a specific data broadcast program is displayed.
CM data already received and held
Of the receiver that interrupts the commercial screen of
A screen display method, there is a specific screen data ones of screen data constituting the specific data broadcast program, the CM data broadcasting program to be interrupt displayed after the screen is displayed Komashi
A commercial screen interrupt command data for specifying the normal screen is inserted, the screen data is transmitted from the transmitting side , and a data broadcast program including the screen data including the commercial screen interrupt command data is transmitted by the user. When the selected screen data including the commercial screen interrupt command data is displayed, the commercial
Based on the catcher Le screen interrupt command data, the Komashi
A screen display method on a receiving side in a data broadcasting system, characterized by displaying a commercial screen of a CM data broadcast program specified by a call screen interrupt command data.