JP5697266B2 - Two-dimensional code image display method, data broadcasting system, and program - Google Patents

Description

  The present invention relates to a method for displaying a two-dimensional code in which predetermined information is embedded on a digital broadcast receiver.

  In recent years, with the development of digital broadcasting networks, the use of data broadcasting programs has become popular using digital television. For example, a television image signal of a barcode embedded with a URL sent out by a television station is received by the television and the barcode is displayed, and the mobile phone captures the URL and obtains the URL to access the general reservation center server. , A service for making a reservation.

  By the way, the data broadcasting program creates a data broadcasting screen in accordance with the data broadcasting operation rule “ARIB-STD-B24” defined by ARIB (Japan Radio Industry Association). The number of DOM elements that can be held in one screen of data broadcasting is up to 512, which defines BML operation rules.

  Therefore, a technique for generating a two-dimensional code that can reflect information necessary for an interactive service (viewer information or information created by the viewer) on a barcode in the above-described operational rules is disclosed in Patent Document 1. Is disclosed.

  The technology of Patent Document 1 broadcasts image pattern data (material data) representing all 2D black and white binary two-dimensional array patterns by data broadcasting. Then, the receiver side generates two-dimensional code data, and generates a two-dimensional code image corresponding to the two-dimensional code data by combining the material data. Accordingly, an attempt is made to generate a two-dimensional code in which the number of cells on one side exceeds 25 cells on data broadcasting. Note that a cell is a white or black square image constituting a two-dimensional code image.

  The two-dimensional code specifications include two-dimensional code type 1 (21 x 21 cells), two-dimensional code type 2 (25 x 25 cells), two-dimensional code type 3 (29 x 29 cells), and two-dimensional code type 4. (33 × 33 cells).

JP 2009-077006 A

Standard name “Data broadcasting encoding and transmission system in digital broadcasting”, Standard number “ARIB-STD-B24”, published by Japan Radio Industry Association (ARIB)

  By the way, the data broadcasting operation regulation “ARIB-STD-B24” defines the number of nodes in addition to the number of elements and the number of materials, and the upper limit of the number of nodes is 1024. However, there is no clear definition of how to count nodes.

  In such a situation, the technique of Patent Document 1 increases the number of elements as the number of cells on one side increases as the type of the two-dimensional code increases to 2, 3, 4, 5 and so on. For example, in the case of a 3 type two-dimensional code, a 29 × 29 cell is filled with 15 × 15 material data, so the number of elements is 225. Furthermore, in the case of a 4 type two-dimensional code, a 33 × 33 cell is filled with 17 × 17 material data, so the number of elements is 289. Thus, the number of elements increases as the type of the two-dimensional code increases. Since the number of nodes increases in proportion to the number of elements, as a result, the higher the type of the two-dimensional code, the larger the number of nodes. Depending on how the nodes are counted, the upper limit of 1024 nodes may be exceeded. . This means that some receivers may fail to present a two-dimensional code image depending on a difference in interpretation.

  On the other hand, it is necessary for television broadcasters to avoid broadcast accidents in which terrestrial digital broadcasting and BS / CS digital broadcasting require that all broadcast data broadcasting programs can be presented normally by all receivers. .

  Therefore, the present invention has been invented in view of the above problems, and generates a two-dimensional code without violating the limit on the number of nodes in data broadcasting even for a two-dimensional code having a large number of cells on one side. It is to provide technology to do.

In the present invention, the total number of cells is n (n = 6, 7, 8, 9), and a ²ⁿ black and white binary two-dimensional array pattern representing a material image pattern and a two-dimensional code image An instruction description for causing the digital broadcast receiver to execute generation is transmitted using data broadcasting, and the digital broadcast receiver receives the data broadcast and converts predetermined information into two-dimensional code data based on the instruction description. This is a two-dimensional code image display method for converting, generating a two-dimensional code image corresponding to the two-dimensional code data by combining the material image patterns, and displaying the two-dimensional code image.

In the present invention, the total number of cells is n (n = 6, 7, 8, 9), and a ²ⁿ black and white binary two-dimensional array pattern representing a material image pattern and a two-dimensional code image A command description that causes the digital broadcast receiver to execute generation is transmitted using data broadcasting, and the command description causes the digital broadcast receiver to convert predetermined information into two-dimensional code data, and the two-dimensional code data This is a two-dimensional code image display method for generating a corresponding two-dimensional code image by combining the material image patterns and displaying the two-dimensional code image.

In the present invention, the total number of cells is n (n = 6, 7, 8, 9), and a ²ⁿ black and white binary two-dimensional array pattern representing a material image pattern and a two-dimensional code image A broadcasting station that transmits a command description that causes a digital broadcast receiver to execute generation using a data broadcast; receives the data broadcast; and converts predetermined information into two-dimensional code data based on the command description; A data broadcast system including a digital broadcast receiver that generates a two-dimensional code image corresponding to the two-dimensional code data by combining the material image patterns and displays the two-dimensional code image.
In the present invention, the total number of cells is n (n = 6, 7, 8, 9), and a ²ⁿ black and white binary two-dimensional array pattern representing a material image pattern and a two-dimensional code image And means for transmitting a command description for causing the digital broadcast receiver to execute generation using data broadcasting. The command description causes the digital broadcast receiver to convert predetermined information into two-dimensional code data. A broadcast station is one that generates a two-dimensional code image corresponding to the three-dimensional code data by combining the material image patterns and displays the two-dimensional code image.

The present invention, the total number of cells is n (n = 6,7,8,9) number, include material image pattern representing all of the two-dimensional array pattern of black and white binary 2 ^n, predetermined information This is a program for causing a computer to execute processing for converting into two-dimensional code data, generating a two-dimensional code image corresponding to the two-dimensional code data by combining the material image patterns, and displaying the two-dimensional code image.

  The present invention can generate a two-dimensional code image without violating the limitation on the number of nodes of data broadcasting. This is because the number of material image patterns increases, but the number of elements decreases. As a result, the increase in the number of nodes can be suppressed, and the number of elements does not exceed the ARIB regulations.

FIG. 1 shows an example of a material image pattern of 1 cell × 9 cells. FIG. 2 is a diagram showing an example of a 4 type two-dimensional code image (33 cells × 33 cells). FIG. 3 is a diagram for explaining the outline of the two-dimensional code generation system according to the embodiment of the present invention. FIG. 4 is a block diagram of the broadcasting station 1. FIG. 5 is a block diagram of the digital broadcast receiver 2. FIG. 6 is a flowchart of the overall operation of the two-dimensional code creation / display system according to the present invention. FIG. 7 is a flowchart of an operation for generating a two-dimensional code image. FIG. 8 shows an example of a script.

The present invention, the total number of cells is n (n = 6,7,8,9) number, and the material image pattern representing all of the two-dimensional array pattern of black and white binary 2 ^n, the two-dimensional code image data And a command description for causing the digital broadcast receiver to generate the data using a data broadcast. The digital broadcast receiver converts predetermined information into two-dimensional code data based on the command description, and A two-dimensional code image corresponding to the code data is generated by combining the material image patterns, and the digital broadcast receiver displays the generated two-dimensional code image.

Here, the most characteristic feature of the present invention is that a material image pattern for generating a two-dimensional code image has n (n = 6, 7, 8, 9) cells as one material, and 2 ^The material image pattern representing all the two-dimensional array patterns of ⁿ black and white binary values is used. Note that a cell is a white or black square image constituting a two-dimensional code image.

Examples of the material include, for example, 1 cell × 6 cell, 1 cell × 7 cell, 1 cell × 8 cell, 1 cell × 9 cell horizontally long material, 2 cell × 3 cell, 3 cell × 3 cell material. is there. In the case of the material of 1 cell × 6 cells, there are 2 ⁶ = 64 material image patterns, and in the case of the material of 1 cell × 7 cells, there are 2 ⁷ = 128 material image patterns. In the case of a material of × 8 cells, there are 2 ⁸ = 256 material image patterns, and in the case of a material of 1 cell × 9 cells, there are 2 ⁹ = 512 material image patterns.
1 cell x 6 cell, 1 cell x 7 cell, 1 cell x 8 cell, 1 cell x 9 cell horizontally long material is the 2D code data that is the source of the 2D code, and the corresponding material image pattern When the image is replaced with the next image, the data can be divided into horizontally long cells from the beginning of the data. Therefore, the processing load on the receiver side is larger than the material image pattern of 2 cells × 3 cells, 3 cells × 3 cells. Can be reduced.

  FIG. 1 shows an example of a material image pattern of 1 cell × 9 cells. The material image pattern is composed of file name information and image data. The image data is an aggregate of binary pixel data (white pixels or black pixels) combined.

  In the example of FIG. 1, white cells or black cells are arranged in 1 cell × 9 cells, and file names associated with the values of the arranged binary pixels are given. For example, if the value of the white cell is “1” and the value of the black cell is “0”, since the first material image pattern has nine white cells arranged, the file name Is “111111111.png”. Since the second image pattern has black cells arranged only at the beginning, the file name is “0111111111.png”. Then, 512 such material image patterns are prepared.

  Next, the two-dimensional code data converted from the predetermined information is replaced with the corresponding material image pattern image. For example, if the two-dimensional code data is “0111111111”, the two-dimensional code data “0111111111” is an image with the file name “0111111111.png” “black, white, white, white, white, white, white, white, white , White ”. This process is performed until all the cells of the two-dimensional code image are filled, and a two-dimensional code image is generated.

  FIG. 2 is a diagram showing an example of a 4 type two-dimensional code image (33 cells × 33 cells). In the case of a 4 type two-dimensional code image, when a material image pattern of 1 cell × 9 cells is used, 33 material images in a row direction and 4 in a column direction are filled with images of a total of 132 material image patterns. . Two-dimensional code data “000000100” corresponding to (9 rows, 1 column) to (9 rows, 9 columns) of the two-dimensional code data is “black,” which is an image of the file name “000000100.png” of the material image pattern. Replace with "black, black, black, black, black, white, black, black".

  In the case of a 4 type two-dimensional code image (33 cells × 33 cells), there are only 33 cells per side, and there is no two-dimensional code data in the 34th cell, 35th cell, and 36th cell. If four material image pattern images are arranged in the row direction, three cells are left (9 cells × 4 cells−33 cells = 3 cells). Therefore, the last material image pattern in the row direction is a material image pattern in which the last three cells are “white”. For example, in the example of FIG. 2, the two-dimensional code data “000000” corresponding to (1 row, 28 columns) to (1 row, 33 columns) is used, but this two-dimensional code data “000000” is changed to “00000011”. And “black, black, black, black, black, black, white, white, white”, which is an image of “00000011.png”.

  Thus, in the present invention, the number of materials is increased but the number of elements can be reduced as compared with the technique described in Patent Document 1. For example, in the case of a 4 type two-dimensional code, the technique of Patent Document 1 fills a 33 × 33 cell with 17 × 17 material data, so the number of elements is 289. On the other hand, in the present invention, 33 × 33 cells are filled with 33 × 4 material data, so the number of elements is 132. As described above, according to the present invention, the number of material image patterns increases, but the number of elements decreases. As a result, an increase in the number of nodes can be suppressed, and the number of elements does not exceed the provisions of ARIB. .

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. In the following description, a case where a 4-type two-dimensional code image is generated and displayed using a material of 1 cell × 9 cells as a material image pattern will be described.

  FIG. 3 is a diagram for explaining the outline of the two-dimensional code generation system according to the embodiment of the present invention. The two-dimensional code generation system includes a broadcast station 1 and a digital broadcast receiver 2.

  FIG. 4 is a block diagram of the broadcasting station 1. The broadcast station 1 includes a data broadcast transmission unit 10 for transmitting BML content including a material image pattern and BML that is a command description for causing the digital broadcast receiver to generate two-dimensional code image data, and a data broadcast transmission unit And a broadcasting unit 11 that multiplexes and broadcasts the material image pattern and BML content sent from 10 and the video / audio on the main line side.

  FIG. 5 is a block diagram of the digital broadcast receiver 2. The digital broadcast receiver 2 used by the viewer is connected to a BS / CS 110 ° antenna or a UHF antenna. And it has the receiving part 20, the control part 21, the two-dimensional code image generation part 22, and the display part 23.

  The control unit 21 performs various controls such as reception of information from the TV remote controller and display of the generated two-dimensional code image on the display unit 23.

  The two-dimensional code image generation unit 22 includes a memory area. The BML contents of the received data broadcast are stored in the memory area, and a two-dimensional code image obtained by converting predetermined information is generated by interpreting the BML script. Here, the predetermined information is, for example, information such as a URL necessary for two-way communication, an identification number of a Bcas card, a password input by a viewer, and the like.

  Next, the overall operation of the present embodiment will be described. FIG. 6 is a flowchart of the overall operation of the two-dimensional code creation / display system according to the present invention.

In the case of a material of 1 cell × 9 cells, the broadcasting station 1 has 2 ⁹ = 512 material image patterns and BML contents that are command descriptions for causing the digital broadcast receiver to generate two-dimensional code image data. Broadcast (Step 100).

  When the digital broadcast receiver 2 selects the data broadcast, the BML content is cached (stored) in the working memory of the digital broadcast receiver (Step 101).

  The two-dimensional code image generation unit 22 reads the corresponding script from the BML content cached in the working memory and executes the following processing.

  Information to be embedded in the two-dimensional code is read (Step 102).

  The two-dimensional code generation script generates two-dimensional code data (Step 103).

  The conversion script converts the two-dimensional code data into an image object (two-dimensional code image) using an image pattern of 1 cell × 9 cells (Step 104). That is, by using an image pattern of 1 cell × 9 cells, a two-dimensional code of 33 cells × 33 cells can be expressed by 33 × 4 image objects. Incidentally, in the QR code (registered trademark) of a 4 type two-dimensional code (33 cells × 33 cells), the number of characters that can be embedded is 78 characters in binary notation.

  The BML browser displays the image pattern (two-dimensional code image) of the image object on the display unit 23 of the digital broadcast receiver 2 (Step 105).

  Next, the operation from Step 102 to Step 104 described above, that is, the operation for generating a two-dimensional code image will be described in detail.

  FIG. 7 is a flowchart of an operation for generating a two-dimensional code image.

  First, 33 row × 4 column = 132 object materials are reset (step 200). That is, the material image pattern is entirely white.

  The generated 33-dimensional × 33-cell two-dimensional code data is acquired (step 201).

  The value of the counter “j” in the row direction is initialized (value = “0”) (step 202).

  The value of the counter “i” in the column direction is initialized (value = “0”) (step 203).

  It is determined whether the value of the counter “j” is smaller than “33” (step 204). If so, go to Step 205. If not, it ends.

  It is determined whether the value of the counter “i” is smaller than “33” (step 205). If so, go to Step 206. If not, add 1 to j and return to step 203.

  In step 206, the two-dimensional code data array (i + 0, j) (i + 1, j), (i + 2, j) ... (i + 7, j), (i + 8, The value 1 or 0 is taken out from j) and assigned from the highest file name. If i exceeds 33, that is, if there is no array value in the i direction, no assignment is made. Then, it is replaced with a material image corresponding to the fill name.

  Subsequently, 9 is added to i (step 207), and the process returns to step 205.

  FIG. 8 shows an example of a script for executing the above-described operation.

  As described above, by using the material image pattern of 1 cell × 9 cells, 33 cells × 33 cells are filled with 33 × 4 = 132 material data, so the number of elements is 132. On the other hand, when a material image pattern of 2 cells × 2 cells is used as in Patent Document 1, 33 cells × 33 cells are filled with 17 × 17 = 289 material data, so the number of elements is 289. It becomes a piece. Therefore, according to the present invention, the number of elements can be reduced, and as a result, an increase in the number of nodes can be suppressed. In the above-described embodiment, an example of 1 cell × 9 cells has been described. However, a horizontally long material of 1 cell × 6 cells, 1 cell × 7 cells, 1 cell × 8 cells, 2 cells × 3 cells, 3 cells, 3 cells, Needless to say, the material image pattern of the cell × 3 cell material is the same.

Furthermore, although the example using the material image pattern of one type of material has been described in the above embodiment, the present invention is not limited to this, and material image patterns of a plurality of materials may be used.

  Specifically, in the current digital broadcasting, the ARIB system occupies a considerable share, but it is considered that the reception share in the IPTV system and the new RMP system will increase in the future. However, since the number of digits of the terminal ID is different in each method, it is assumed that the type of the two-dimensional code is different. Therefore, a hybrid method for coexisting different types of two-dimensional codes in one content as data broadcasting content is required.

  On the other hand, although it is the upper limit (768) of the number of content materials specified by ARIB, the contents specified by ARIB are specified as the number of materials that can be memory locked at one time. Therefore, the data broadcasting contents are, for example, 3 type 1 cell × 8 cell material image pattern (256 material patterns) and 4 type 1 cell × 9 cell material image pattern (512 material patterns). Even if you keep both, you won't violate the ARIB rules unless you lock both at the same time as content creation.

  For example, considering that the terminal ID of the TV receiver is encrypted to provide redundancy, the two-dimensional code type is 3 types because the ARIB format is 12 hexadecimal digits, and the IPTV format is 16 hexadecimal digits. Since there are 3 types, the new RMP system has 24 hexadecimal digits, so it can be considered to be 4 types.

Therefore, in the data broadcasting content using the two-dimensional code, since the 3 type and the 4 type coexist, a material image pattern of a plurality of types of material ( a material image pattern of 3 types of 1 cell × 8 cells ( 2 material codes (256 material patterns) and 4 type 1 cell × 9 cell material image patterns (512 material patterns)), as well as identifying the terminal ID of the television receiver and matching the two-dimensional code Include a script to generate

  With the above configuration, the present invention can be flexibly applied to a plurality of methods.

  In the above-described embodiment, each unit is configured by hardware, but may be configured by a program that causes the information processing apparatus (CPU) to perform the above-described operation processing.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea.

DESCRIPTION OF SYMBOLS 1 Broadcasting station 2 Digital broadcast receiver 10 Data broadcast transmission part 11 Broadcasting part 20 Reception part 21 Control part 22 Two-dimensional code image generation part 23 Display part

Claims (9)

A single material is a horizontally long material of 1 cell × n (n is any one of 6, 7, 8, 9) cells, and represents all of the black and white two-dimensional array patterns arranged in each cell of the material. A material image pattern for each of two or more materials having a different total number of cells among ⁿ material image patterns and a material to be used according to predetermined information to be converted into two-dimensional code data are selected, and the material of the selected material Using data broadcasting, a command description that causes a digital broadcast receiver to generate a two-dimensional code image using the image pattern is transmitted.
Digital broadcasting receiver, receiving said data broadcasting, based on the instruction description, converts the predetermined information to the two-dimensional code data, select the material according to the predetermined information, the two-dimensional code A two-dimensional code image display method for generating a two-dimensional code image corresponding to data by combining the material image patterns of the selected material and displaying the two-dimensional code image. The two-dimensional code image display method according to claim 1, wherein the predetermined information is identification information for identifying a receiver or information used for two-way communication. A single material is a horizontally long material of 1 cell × n (n is any one of 6, 7, 8, 9) cells, and represents all of the black and white two-dimensional array patterns arranged in each cell of the material. A material image pattern for each of two or more materials having a different total number of cells among ⁿ material image patterns and a material to be used according to predetermined information to be converted into two-dimensional code data are selected, and the material of the selected material Using data broadcasting, a command description that causes a digital broadcast receiver to generate a two-dimensional code image using the image pattern is transmitted.
The instruction description, the digital broadcast receiver, to convert the predetermined information to the two-dimensional code data, to select the materials according to the predetermined information, a two-dimensional code image corresponding to the two-dimensional code data A two-dimensional code image display method for generating a combination of the material image patterns of the selected material and displaying a two-dimensional code image. The two-dimensional code image display method according to claim 3, wherein the predetermined information is identification information for identifying a receiver or information used for two-way communication. A single material is a horizontally long material of 1 cell × n (n is any one of 6, 7, 8, 9) cells, and represents all of the black and white two-dimensional array patterns arranged in each cell of the material. A material image pattern for each of two or more materials having a different total number of cells among ⁿ material image patterns and a material to be used according to predetermined information to be converted into two-dimensional code data are selected, and the material of the selected material A broadcasting station that uses a data broadcast to transmit a command description that causes a digital broadcast receiver to generate a two-dimensional code image using the image pattern ;
Receiving the data broadcast, converting the predetermined information into two-dimensional code data based on the instruction description, selecting the material according to the predetermined information, and corresponding to the two-dimensional code data A data broadcast system comprising: a digital broadcast receiver that generates a code image by combining the material image patterns of the selected material and displays a two-dimensional code image. 6. The data broadcasting system according to claim 5, wherein the predetermined information is identification information for identifying a receiver or information used for bidirectional communication. A single material is a horizontally long material of 1 cell × n (n is any one of 6, 7, 8, 9) cells, and represents all of the black and white two-dimensional array patterns arranged in each cell of the material. A material image pattern for each of two or more materials having a different total number of cells among ⁿ material image patterns and a material to be used according to predetermined information to be converted into two-dimensional code data are selected, and the material of the selected material Means for transmitting, using data broadcasting, a command description for causing a digital broadcasting receiver to generate a two-dimensional code image using an image pattern ;
The instruction description, the digital broadcast receiver, to convert the predetermined information to the two-dimensional code data, to select the materials according to the predetermined information, a two-dimensional code image corresponding to the two-dimensional code data A broadcasting station that generates a combination of the material image patterns of the selected material and displays a two-dimensional code image.   The broadcasting station according to claim 7, wherein the predetermined information is identification information for identifying a receiver or information used for two-way communication. One material obtained by broadcasting is a horizontally long material of 1 cell × n (n is any one of 6, 7, 8, 9) cells, and a black and white two-dimensional array pattern arranged in each cell of the material A program for displaying a two-dimensional code image using any one of two or more material image patterns for each material having a total number of cells of ²ⁿ material image patterns representing all of
A predetermined information is converted into two-dimensional code data, a material is selected according to the predetermined information from two or more materials obtained by the broadcast, and a two-dimensional code image corresponding to the two-dimensional code data is selected. A program for causing a computer to execute a process of generating a combination of the material image patterns of the selected material and displaying a two-dimensional code image.

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