JP2008217124A - Code generation device and code generation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately decode a two-dimensional code in a code reader. <P>SOLUTION: This code generation device is configured so that reading performance information RP showing the performance of reading two-dimensional codes TDC1 to TDC3 is acquired by an acquisition part 26, and an encoding part 28 encodes registration screen acquisition addresses GF1 to GF3 based on reading performance information RP, and generates the two-dimensional codes TDC1 to TCD3 with code resolution Cmm and code size CS corresponding to the code reading performance of the code reader 14, thereby a data acquisition device 11 displays the two-dimensional codes TDC1 to TDC3 with the code resolution Cmm and the code size CS corresponding to the code reading performance of the code reader 14, and the code reading device 14 easily reads the two-dimensional codes TDC1 to TDC3, and thus the code reader 14 accurately decodes the two-dimensional codes TDC1 to TDC3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a code generation device and a code generation program, and is suitable for application to a data provision and acquisition system that provides and acquires various data using a two-dimensional code that expresses information as a two-dimensional graphic pattern, for example. .

  The two-dimensional code expresses information by expanding it in two directions, the horizontal direction and the vertical direction. As a result, the two-dimensional code can significantly increase the amount of information to be expressed as compared to a so-called bar code that develops information in one direction such as the horizontal direction and expresses it as a one-dimensional graphic pattern. Along with it, not only alphanumeric characters but also kana, kanji and sentences can be expressed. For this reason, two-dimensional codes have been rapidly spread in recent years for providing various information.

  Various two-dimensional codes such as QR (Quick Response) code (registered trademark), DATA MATRIX (registered trademark), Maxi Code (registered trademark), and PDF417 (registered trademark) are standardized. ing. Taking QR code (registered trademark) as an example of such a two-dimensional code, the QR code (registered trademark) has a plurality of square cells, which are the minimum constituent units, and these cells are arranged in the horizontal direction. In addition, they are arranged in a matrix in the vertical direction. The QR code (registered trademark) expresses information in a pattern of white cells and black cells, for example, by setting each cell to one of white and black.

  Some QR codes (registered trademark) have a plurality of versions in which the total amount of information that can be expressed and the total number of cells that express the information are different. Actually, the QR code (registered trademark) increases the number of cells by 4 each in the horizontal direction and the vertical direction each time the version is increased, and the maximum amount of information that can be expressed increases. Therefore, a version of the QR code (registered trademark) is selected according to the information amount of information to be expressed, thereby expressing the information by the number of cells corresponding to the information amount.

  That is, as described with reference to the QR code (registered trademark) as an example, in the two-dimensional code, when the version of the two-dimensional code increases, the number of minimum structural units used to represent information is increased accordingly. The amount of information to be increased can be increased. The two-dimensional code expresses information in the minimum structural unit, for example, white and black patterns, and can actually provide various information by printing on paper or displaying on a display unit. Yes.

Here, as a device that provides information by displaying a two-dimensional code on a display unit, there is a communication system as shown below. In such a communication system, an access point encodes communication setting information to generate a two-dimensional code. In the communication system, the access point displays a two-dimensional code on the display unit in response to a user operation. In this state, in the communication system, the digital camera images and reads the two-dimensional code displayed on the display unit of the access point. In the communication system, the digital camera decodes the read two-dimensional code and stores the setting information obtained as a result. As described above, in the communication system, the digital camera easily obtains the setting information and uses the setting information for communication with the access point (see, for example, Patent Document 1).
JP 2006-251938 A (20th page, 21st page, 22nd page)

  By the way, in recent years, a plurality of types of digital cameras having different reading performance for reading a two-dimensional code (hereinafter referred to as code reading performance) have become widespread. However, in a communication system, a two-dimensional code is generated and displayed in one arbitrarily selected size in advance at the access point without considering a plurality of types of code reading performance.

  For this reason, in a communication system, for example, when a two-dimensional code is generated and displayed at a relatively small size at an access point, for a digital camera with relatively low code reading performance, The white and black patterns may be crushed (that is, the boundary between the white minimum structural unit and the black minimum structural unit is blurred), and the two-dimensional code may not be read accurately. Also, in a communication system, for example, when a two-dimensional code is generated and displayed in a relatively large size, for a digital camera having a relatively high code reading performance, the entire two-dimensional code is captured in an imaging range depending on the installation environment of the access point. In some cases, it cannot be accurately read without being contained.

  As described above, in the conventional communication system, since the size of the two-dimensional code is uniquely determined without considering a plurality of types of code reading performance, the two-dimensional code can be used for any digital camera having different code reading performance. Cannot be read easily, and as a result, it is difficult to say that the digital camera can accurately decode the two-dimensional code.

  The present invention has been made in consideration of the above points, and intends to propose a code generation device and a code generation program capable of accurately decoding a two-dimensional code.

  In order to solve such a problem, in the present invention, a reading performance indicating a code reading performance of reading a two-dimensional code of a code reading device that reads a two-dimensional code generated by encoding predetermined information by an acquisition unit in the code generating device. The information is acquired, and the encoding unit encodes predetermined information based on the reading performance information to generate a two-dimensional code having a resolution and a size corresponding to the code reading performance of the code reading device.

  Therefore, in the present invention, in the code generation device, the code display device that displays the two-dimensional code can display the two-dimensional code with a resolution and a size corresponding to the code reading performance of the code reading device. The reading device can easily read the two-dimensional code displayed on the code display device.

  According to the present invention, the acquisition unit in the code generation device acquires the reading performance information indicating the code reading performance of reading the two-dimensional code of the code reading device that reads the two-dimensional code generated by encoding the predetermined information, The encoding unit encodes predetermined information based on the reading performance information, and generates a two-dimensional code having a resolution and size corresponding to the code reading performance of the code reading device, thereby displaying the two-dimensional code. The code display device can display a two-dimensional code with a resolution and size corresponding to the code reading performance of the code reading device. As a result, the two-dimensional code displayed on the code display device to the code reading device Can be easily read, and thus the code reader and code reader can accurately decode the two-dimensional code. It is possible to realize the generation program.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Outline of Code Generating Device In FIG. 1, 1 indicates an outline of the configuration of a code generating device according to the present invention as a whole. In the code generation device 1, the acquisition unit 2 acquires reading performance information indicating the code reading performance of reading a two-dimensional code of a code reading device that reads a two-dimensional code generated by encoding predetermined information. Further, in the code generation device 1, the encoding unit 3 encodes predetermined information based on the reading performance information, and generates a two-dimensional code having a resolution and a size corresponding to the code reading performance of the code reading device.

  With this configuration, the code generation device 1 can display the two-dimensional code with a resolution and size corresponding to the code reading performance of the code reading device on the code display device that displays the two-dimensional code. The device can easily read the two-dimensional code displayed on the code display device. Thereby, the code generation device 1 can accurately decode the two-dimensional code read by the code reading device.

(2) First Embodiment (2-1) Configuration of Data Providing / Acquiring System According to First Embodiment In FIG. 2, reference numeral 10 denotes a data providing / acquiring system according to the first embodiment as a whole. In such a data provision and acquisition system 10, a code generation in which a stationary data acquisition device 11 as a code display device that displays a square two-dimensional code such as a QR code, for example, generates the two-dimensional code via the network 12. It can communicate with the data providing device 13 as a device. In the data provision acquisition system 10, a portable code reading device 14 that reads a two-dimensional code displayed on the data acquisition device 11 can also communicate with the data provision device 13 via the network 12.

  A detailed hardware configuration of the functional circuit block of the data providing apparatus 13 will be described with reference to FIG. In the data providing apparatus 13, the control unit 20 controls the entire apparatus in an integrated manner and executes various processes. Accordingly, the data providing device 13 provides a service related to music to the user via the data acquisition device 11. Further, when the data providing apparatus 13 is charged for purchase of music data as a result of providing a service to the user via the data acquisition apparatus 11, the data providing apparatus 13 also executes a charging process for the user.

  That is, in the data providing apparatus 13, the control unit 20 stores a large number of music data such as ATRAC3 (Adaptive Transform Acoustic Coding 3) format and MP3 (MPEG Audio Layer-3) format for purchase in the music data storage unit 21. ing. In addition, the control unit 20 stores music related information related to each of the large number of music data in the music data storage unit 21 in association with the music data.

  Incidentally, the music-related information includes a network address (hereinafter referred to as a music acquisition address) that is a URL (Uniform Resource Locator) that makes it possible to individually identify and acquire the corresponding music data on the network 12, Music title based on the music data to be played, artist name, album title of the album containing the music, playback time of the music data as a whole, image data of the jacket photo of the album containing the music (hereinafter referred to as the jacket) Network address (hereinafter referred to as a photographic image acquisition address), which is a URL that can be individually identified and acquired on the network 12.

  Further, the control unit 20 provides the screen data storage unit 22 with the music introduction screen data of the music introduction screen for introducing the music data for purchase to the user via the data acquisition device 11 and a desired one of the introduced items. The music purchase screen data of the music purchase screen for purchasing music data, and the network address (hereinafter referred to as “URL”) that enables these music introduction screen data and music purchase screen data to be individually identified and acquired on the network 12. This is referred to as a music screen acquisition address) and stored. Incidentally, in the music introduction screen data, a music screen acquisition address of music purchase screen data for purchasing the music data is embedded in association with each of a plurality of music data introduced via the music introduction screen. The music purchase screen data is embedded with a music acquisition address corresponding to the music data that can be purchased via the music purchase screen.

  In this state, the control unit 20 reads the music screen acquisition address of the music introduction screen data from the screen data storage unit 22 when requested to receive the provision of music-related services from the data acquisition device 11. Then, the control unit 20 transmits the music screen acquisition address to the data acquisition device 11 via the network 12 by the communication unit 23.

  As a result, when the introduction screen request information requesting the music introduction screen data is transmitted from the data acquisition device 11 according to the music screen acquisition address via the network 12, the control unit 20 transmits the introduction screen request information to the communication unit 23. Receive and capture by. At this time, the control unit 20 reads the music introduction screen data from the screen data storage unit 22 in accordance with the introduction screen request information. Then, the control unit 20 transmits the music introduction screen data to the data acquisition device 11 via the network 12 by the communication unit 23.

  Thereby, the control unit 20 causes the data acquisition device 11 to display a music introduction screen based on the music introduction screen data. Thus, the control unit 20 introduces music data for purchase to the user via the music introduction screen displayed on the data acquisition device 11.

  By the way, in the data acquisition device 11, when the user selects and instructs desired music data on the music introduction screen, the corresponding music screen acquisition address is extracted from the music introduction screen data. Then, the data acquisition device 11 transmits purchase screen request information for requesting music purchase screen data according to the music screen acquisition address to the data providing device 13 via the network 12.

  Accordingly, when the control unit 20 receives and takes in the purchase screen request information transmitted from the data acquisition device 11 according to the music screen acquisition address by the communication unit 23, the control unit 20 responds from the screen data storage unit 22 according to the purchase screen request information. Read music purchase screen data. Then, the control unit 20 transmits the music purchase screen data to the data acquisition apparatus 11 via the network 12 by the communication unit 23.

  Thereby, the control unit 20 causes the data acquisition device 11 to display a music purchase screen based on the music purchase screen data. Thus, the control unit 20 causes the user to input various information related to the purchase of music data on the music purchase screen in the data acquisition device 11.

  When various kinds of information related to purchase of desired music data are input by the user on the music purchase screen, the data acquisition device 11 extracts a music acquisition address corresponding to the desired music data from the music purchase screen data. Further, the data acquisition device 11 generates music purchase request information for requesting purchase of desired music data based on various pieces of information regarding purchase input by the user. Then, the data acquisition device 11 transmits the music purchase request information to the data providing device 13 via the network 12 according to the music acquisition address.

  Therefore, the control unit 20 receives and imports the music purchase request information transmitted from the data acquisition apparatus 11 via the network 12 at this time by the communication unit 23. Then, the control unit 20 reads out corresponding music data and music related information from the music data storage unit 21 in accordance with the music purchase request information. As a result, the control unit 20 transmits the music data and the music related information to the data acquisition device 11 via the network 12 by the communication unit 23. At this time, the control unit 20 performs a billing process for the user according to the music data distributed to the data acquisition device 11 using the music purchase request information. In this way, the control unit 20 can cause the user to purchase music data using the data acquisition device 11.

  In addition to this configuration, the control unit 20 of the data providing apparatus 13 prepares a plurality of presentation information to be displayed and presented to the user together with other information in the data acquisition apparatus 11. In this case, the presentation information includes, for example, information that introduces music according to the season, time, event, and the like, information that introduces music recommended by the information provider, and the like. In addition, the presentation information includes news for notifying the release of new singles and albums by a specific artist, news for notifying of a service to be newly started, and for purchase newly prepared in the data providing device 13. There are also news that introduce music data.

  Further, as the presentation information, information that introduces the upper predetermined number of music data having a large number of distributions in a specific period such as a week or month, or a service suspension period due to maintenance of the data providing device 13 is notified. There is information. The presentation information includes a character string representing the content (hereinafter referred to as a presentation character string) and an image (hereinafter referred to as a presentation image).

  Actually, the control unit 20 collectively stores these pieces of presentation information in the provision information storage unit 24 as provision information for provision to the data acquisition apparatus 11. Here, as shown in FIG. 4, the provision information RE is configured by listing a plurality of presentation usage information BU1 to BUN used for presenting a plurality of presentation information. In the presentation usage information BU1 to BUN, there is a corresponding presentation information specific title (hereinafter referred to as a presentation information title) BT and identification information specific to the presentation information (hereinafter referred to as presentation identification information) BD. include.

  Further, the presentation usage information BU1 to BUN includes presentation character string information BW for displaying a presentation character string constituting the corresponding presentation information. Further, in the presentation usage information BU1 to BUN, a network that is a URL that makes it possible to individually identify and acquire presentation image data constituting the corresponding presentation information (hereinafter referred to as presentation image data) on the network 12. An address (hereinafter referred to as a presentation image acquisition address) BP is also included.

  Incidentally, the presented image data is image data such as a jacket photo, an artist photo, a service mark, and the like, and is stored in the provided information storage unit 24, for example. The presentation usage information BU1 to BUN also includes music information EM such as a music title, artist name, and genre name of the music when the corresponding presentation information is information related to music.

  In addition to this, the control unit 20 also prepares screen data (hereinafter referred to as detailed screen data) for presenting the detailed contents of the presentation information to the user for each presentation information. That is, the control unit 20 causes the screen data storage unit 22 to acquire the plurality of detailed screen data and the network address (URL) that enables the plurality of detailed screen data to be individually identified and acquired on the network 12. Hereinafter, this is referred to as a detailed screen acquisition address) and stored. Further, as shown in FIG. 5, the control unit 20 acquires, from the provided information storage unit 24, the detailed screen data of the presentation identification information BD (BD 1 to BDN) of the individual presentation information and the detailed screen data corresponding to the presentation information. A data table for detailed screen search (hereinafter referred to as a detailed screen search table) DT associated with addresses PL (PL1 to PLN) is also stored.

  Incidentally, when the provision information RE is newly created by the information providing side, the control unit 20 updates the provision information RE in the provision information storage unit 24 to a new one accordingly. At this time, the control unit 20 also creates detailed screen data corresponding to the provided information RE (that is, corresponding to the presentation information included in the provided information RE) in accordance with the creation of the provided information RE by the information providing side. In response to this, the detailed screen data in the screen data storage unit 22 is also updated to a new one. At this time, the control unit 20 also updates the contents of the detailed screen search table DT in the provision information storage unit 24.

  In this state, the control unit 20 receives the provision request information by the communication unit 23 each time the provision request information for requesting the provision information RE, for example, is periodically transmitted from the data acquisition device 11 via the network 12. Capture. Each time the provision request information is received, the control unit 20 reads the provision information RE stored at that time from the provision information storage unit 24, and uses the communication unit 23 to read the provided provision information RE through the network 12. To the data acquisition device 11. Thus, the control unit 20 displays the presentation information based on the individual presentation usage information BU1 to BUN in the provision information RE in the data acquisition device 11, and presents the presentation information to the user.

  In addition, when any one piece of presentation information is designated while various presentation information is being presented to the user, the data acquisition device 11 stores the presentation identification information BD corresponding to the designated presentation information. Then, detailed screen request information for requesting detailed screen data corresponding to the presentation information is generated. Then, the data acquisition device 11 transmits the detailed screen request information to the data providing device 13 via the network 12.

  Therefore, when the detailed screen request information is transmitted from the data acquisition apparatus 11 via the network 12, the control unit 20 receives and captures the detailed screen request information by the communication unit 23. Based on the presentation identification information BD stored in the detailed screen request information, the control unit 20 reads the detailed screen acquisition address PL corresponding to the presentation identification information BD from the detailed screen search table DT in the provision information storage unit 24. Search for. Thereby, the control unit 20 transmits the retrieved detailed screen acquisition address PL to the data acquisition device 11 via the network 12 by the communication unit 23.

  As a result, when the screen presentation request information requesting the presentation of the detailed screen based on the detailed screen data is transmitted via the network 12 according to the detailed screen acquisition address PL from the data acquisition device 11, the control unit 20 displays the screen. The request information is received and captured by the communication unit 23. And the control part 20 reads the corresponding detailed screen data from the screen data memory | storage part 22 according to the screen presentation request information. As a result, the control unit 20 transmits the detailed screen data to the data acquisition device 11 via the network 12 by the communication unit 23, thus displaying the detailed screen based on the detailed screen data in the data acquisition device 11 and presenting it to the user. Can be made. In this way, the control unit 20 can present the detailed contents of the presentation information to the user on the detailed screen in addition to the presentation information.

  By the way, on the information providing side, for example, various types of information related to music are posted and a magazine in a data format (hereinafter referred to as a mail magazine) that is distributed as an electronic mail is periodically issued. The control unit 20 stores the mail magazine in, for example, the screen data storage unit 22 every time the mail magazine is periodically issued. In this state, the control unit 22 registers the user who requests to subscribe to the mail magazine (that is, contracts to subscribe), whenever the mail magazine is periodically issued. The mail magazine can be distributed to the code reading device 14 used by the registered user.

  For this reason, the control unit 20 stores registration screen data for registering the user as a user for regular subscription to the mail magazine by providing it to the code reading device 14 in the screen data storage unit 22. However, there are a plurality of types of communication systems that the code reader 14 uses for communication such as acquisition of registration screen data, and the code reader 14 is any one of the plurality of types of communication systems. It is manufactured to utilize. In each type of communication system, the type of text data that can be used to generate screen data to be transmitted to the code reader 14 using its own communication system, the size of the screen based on the screen data, and the like are uniquely determined. It prescribes.

  Accordingly, the registration screen data is generated for each communication system according to different regulations for each communication system. Therefore, the control unit 20 actually stores a plurality of registered screen data corresponding to the plurality of types of communication systems in the screen data storage unit 22. In addition, the control unit 20 identifies a plurality of registration screen data on the network 12 to the screen data storage unit 22 so that the plurality of network addresses (hereinafter referred to as registration screen acquisition) can be acquired. Address is also stored in association with the plurality of registered screen data.

  Here, as shown in FIGS. 6A to 6C, the plurality of registered screen acquisition addresses GF1 to GF3 are described as character strings in which a plurality of characters are arranged in one column, and the left side is a description start side. The right side is the description end side. A part (hereinafter referred to as the first half part) FRP1 to FRP3 of the description start side in the registration screen acquisition addresses GF1 to GF3 is a domain (where the corresponding registration screen data is held and provided on the network 12). That is, the address of the device on the network 12) and a directory for managing the corresponding registration screen data are shown. Also, the remaining description end portions (hereinafter referred to as the latter half portions) BAP1 to BAP3 of the plurality of registration screen acquisition addresses GF1 to GF3 indicate identifier information of corresponding registration screen data.

  In this case, the plurality of registration screen data corresponding to the plurality of registration screen acquisition addresses GF1 to GF3 are all held and provided by the data providing device 13. For this reason, the first half portions FRP1 to FRP3 of the plurality of registration screen acquisition addresses GF1 to GF3 each include information indicating the same domain (that is, the location of the data providing device 13 on the network 12). However, the plurality of registration screen data corresponding to the plurality of registration screen acquisition addresses GF1 to GF3 have different configurations according to the regulations of the communication system, and are managed in different directories by the control unit 20 of the data providing device 13. . For this reason, the first half portions FRP1 to FRP3 of the plurality of registration screen acquisition addresses GF1 to GF3 also include information indicating different directories.

  The plurality of registration screen data corresponding to the plurality of registration screen acquisition addresses GF1 to GF3 can be given different identifiers because they have different configurations, but can be accurately distinguished on the network 12 even if the directories are different. By obtaining, the same identifier is given. For this reason, the second half portions BAP1 to BAP3 of the plurality of registered screen acquisition addresses GF1 to GF3 each include information indicating the same identifier.

  With this configuration, the first half portions FRP1 to FRP3 of the plurality of registration screen acquisition addresses GF1 to GF3 as a whole show different information (hereinafter referred to as individual information) VI1 to VI3. In the plurality of registered screen acquisition addresses GF1 to GF3, the remaining latter half portions BAP1 to BAP3 all indicate common (that is, the same) information (hereinafter referred to as common information) FI1.

  Therefore, the control unit 20 stores one common information FI1 included in each of the plurality of registered screen acquisition addresses GF1 to GF3 in the address storage unit 25. The control unit 20 also stores a plurality of different pieces of individual information VI1 to VI3 included in the plurality of registered screen acquisition addresses GF1 to GF3 in the address storage unit 25, respectively. Furthermore, the control unit 20 identifies the names of a plurality of types of communication systems (hereinafter referred to as carrier names) to the address storage unit 25 and also identifies the registration screen data generated according to the communication systems with the carrier names. Are stored in association with the individual information VI1 to VI3 of the registered screen acquisition addresses GF1 to GF3.

  Incidentally, even if the control unit 20 stores a plurality of registration screen acquisition addresses GF1 to GF3 as they are in the address storage unit 25, for example, a carrier name is associated with each other in order to identify the plurality of registration screen acquisition addresses GF1 to GF3. Need to remember. However, the control unit 20 stores one common information FI1 and a plurality of individual information VI1 to VI3 as a plurality of registered screen acquisition addresses GF1 to GF3 together with a plurality of carrier names in the address storage unit 25. Thus, the control unit 20 can store a plurality of registered screen acquisition addresses GF1 to GF3 even in the address storage unit 25 having a small storage capacity.

  Further, the acquisition unit 26 acquires information related to reading of the two-dimensional code displayed on the data acquisition device 11 (hereinafter referred to as code reading information) prior to the start of provision of the provision information RE to the data acquisition device 11. The requesting acquisition request information is transmitted to the data acquisition device 11 by the communication unit 23 via the network 12. As a result, when the code reading information is transmitted from the data acquisition device 11 via the network 12, the acquisition unit 26 receives and reads the code reading information by the communication unit 23.

  In this case, in the code reading information, the display performance information indicating the display performance of displaying the two-dimensional code of the data acquisition device 11 and the code reading device 14 that images and reads the two-dimensional code displayed on the data acquisition device 11. Is included. The display performance information includes, as the display performance of the two-dimensional code, the size of the display surface of the display unit provided in the data acquisition device 11 (hereinafter referred to as “display surface size”), the total number of pixels on the display surface (hereinafter referred to as “display surface size”). , This is referred to as the number of display surface pixels) and the resolution of the display unit (hereinafter referred to as display resolution). The display performance information is a display area for displaying one two-dimensional code on the screen displayed on the display unit of the data acquisition device 11 as the display performance of the two-dimensional code (hereinafter referred to as a code display area). ) (Hereinafter referred to as a code display area size).

  Incidentally, the display surface size is represented by, for example, a diagonal inch size on a rectangular display surface. The display resolution is calculated by the display surface size and the number of display surface pixels, and is expressed by the number of pixels per inch. Furthermore, the code display area is formed in the same shape as the two-dimensional code, for example, a square. The code display area size is represented by the number of pixels constituting one side of the code display area, for example.

  On the other hand, the reader information includes the name of the manufacturer that manufactured the code reader 14 (hereinafter referred to as the manufacturer name), the model name of the code reader 14, and the code reader 14 for communication. Device attribute information including the carrier name of the communication system to be used is included. The reading device information also includes reading performance information indicating the code reading performance of imaging and reading the two-dimensional code of the code reading device 14. Further, the reading device information includes reading environment information indicating a reading environment (hereinafter referred to as a code reading environment) when the code reading device 14 reads a two-dimensional code.

  Here, the reading performance information is the size of the light receiving surface (hereinafter referred to as the light receiving surface size) of the image sensor (that is, used for reading the two-dimensional code) provided in the code reading device 14 as the code reading performance. ), The total number of pixels on the light receiving surface (hereinafter referred to as the number of light receiving surface pixels) and the resolution of the light receiving surface (hereinafter referred to as reading resolution). The reading performance information includes, as code reading performance, a version (hereinafter referred to as an application version) of an application program (hereinafter referred to as a decoding application program) used for decoding a two-dimensional code by the code reader 14. Show.

  Incidentally, the light receiving surface size is represented by, for example, a diagonal inch size on a rectangular light receiving surface. The reading resolution is calculated by the light receiving surface size and the number of light receiving surface pixels, and is expressed by the number of pixels per inch. In addition, the decoding application program defines the reading conditions such as the accuracy of autofocus and the presence / absence and degree of zoom recommended for reading the two-dimensional code for each application version in order to accurately decode the two-dimensional code. Yes. In addition, the decryption application program has, for each application version, the highest code version (hereinafter referred to as a specified code version) among the two-dimensional code versions that can be decrypted (hereinafter referred to as code versions). One is defined.

  That is, the decryption application program can be expressed by two-dimensional codes of all code versions equal to or less than the one specified code version (that is, the two-dimensional code of the specified code version and the lower than the specified code version). Any two-dimensional code of all code versions with a small number of minimum structural units as well as an information amount of such information can be decoded. Therefore, the decryption application program is a two-dimensional code having a code version higher than the specified code version (that is, a two-dimensional code version having a large number of minimum constituent units together with the amount of information that can be expressed above the specified code version). The code) cannot be decrypted.

  In this way, the application can read the code reading performance of the decoding application program itself with respect to the two-dimensional code (i.e., how to read and decode the two-dimensional code of what configuration by the decoding application program). Property and ability).

  Further, the reading environment information is provided on the display surface of the display unit and the code reading device 14 when the code reading device 14 reads a two-dimensional code displayed on the display unit of the data acquisition device 11 as a code reading environment. The distance between the imaging element and the imaging lens (hereinafter referred to as the reading distance) is shown. Incidentally, the reading distance is arbitrarily designated by the user of the code reading device 14, for example.

  When acquiring such code reading information from the data acquisition device 11, the acquisition unit 26 issues identification information unique to the data acquisition device 11 (hereinafter referred to as device identification information). Then, as shown in FIG. 7, the acquisition unit 26 sends the device identification information MID unique to the data acquisition device 11 to the read information storage unit 27 together with the code reading information CR acquired from the data acquisition device 11. Thereby, the acquisition unit 26 associates the device identification information MID with the reading information storage unit 27 and the reading performance information RP, the device attribute information MA, the reading environment information RM, and the display performance information IP included in the code reading information CR. In addition, the data table (hereinafter referred to as a read information table) RIT is stored.

  The acquisition unit 26 transmits the device identification information MID issued at this time to the data acquisition device 11 via the network 12 by the communication unit 23. Accordingly, the acquisition unit 26 causes the data acquisition device 11 to retain device identification information MID unique to the data acquisition device 11. Incidentally, when there are a plurality of sets of the data acquisition device 11 and the code reading device 14 that can communicate with the data providing device 13 and display and read the two-dimensional code, the acquisition unit 26 includes the data acquisition device 11 and the code reading device 14. The read information table RIT for the set is stored in the read information storage unit 27.

  By the way, when the data acquisition device 11 holds the device identification information MID provided from the data providing device 13, when the presentation information is displayed thereafter, the data acquisition device 11 is generated based on the registration screen acquisition addresses GF1 and GF3 of the registration screen data. Code acquisition request information for requesting acquisition of the two-dimensional code is transmitted to the data providing apparatus 13 via the network 12 together with the apparatus identification information MID. Therefore, when the code acquisition request information and the device identification information MID are transmitted from the data acquisition device 11 via the network 12, the control unit 20 receives and captures them by the communication unit 23. The control unit 20 notifies the encoding unit 28 of the reception of the code acquisition request information, and sends out the device identification information MID received at this time.

  When receiving the reception of the code acquisition request information, the encoding unit 28 starts a two-dimensional code generation process accordingly. In this case, the encoding unit 28 specifies the reading information table RIT including the device identification information MID in the reading information storage unit 27 based on the device identification information MID given from the control unit 20. Then, the encoding unit 28 reads the code reading information CR (that is, the reading performance information RP, the device attribute information MA, the reading environment information RM, and the display performance information IP) included in the specified reading information table RIT from the reading information storage unit 27. ).

  In this state, as illustrated in FIG. 8, the encoding unit 28 reads the common information FI1 from the address storage unit 25. Further, the encoding unit 28 detects the carrier name indicated by the device attribute information MA read as the code reading information CR at this time. Then, the encoding unit 28 searches and reads one piece of individual information VI1 to VI3 corresponding to the detected carrier name from the address storage unit 25. As a result, the encoding unit 28 generates one registered screen acquisition address GF1 to GF3 to be encoded by linking the individual information VI1 to VI3 read from the address storage unit 25 and the common information FI1.

  In this way, the encoding unit 28 at this time requests the data providing apparatus 13 to generate a two-dimensional code, and the pair of code reading apparatuses 14 (that is, the two-dimensional code displayed on the data acquiring apparatus 11). A registration screen acquisition address GF1 for identifying registration screen data of a registration screen that can be displayed by a code reading device 14 that may be used for reading the following. To GF3 are generated as encoding targets at this time.

  By the way, the encoding unit 28 is selected in advance for each of the registration screen acquisition addresses GF1 to GF3, and corresponds to the optimum number representing the registration screen acquisition addresses GF1 to GF3 (that is, the information amount of the registration screen acquisition addresses GF1 to GF3). It is possible to specify the code version of a two-dimensional code (hereinafter referred to as the optimum code version) having the minimum number of minimum structural units and the registration screen acquisition addresses GF1 to GF3 expressed by the two-dimensional code of the optimum code version. For example, a data table (hereinafter referred to as a code version table) in which individual information VI1 to VI3 are associated is stored in advance.

  The encoding unit 28 also holds in advance a data table (hereinafter referred to as an application version table) that indicates a plurality of application versions of the decoding application program and the specified code versions defined by these application versions in association with each other. is doing. Furthermore, the encoding unit 28 includes all code versions of the two-dimensional code, the maximum information amount of information that can be expressed by the two-dimensional code, and the number of minimum structural units arranged on one side of the square two-dimensional code. An associated data table (hereinafter referred to as an information amount table) is also stored in advance.

  Therefore, the encoding unit 28 detects the specified code version defined by the application version based on the application version indicated by the reading performance information RP read as the code reading information CR and the application version table. Also, the encoding unit 28, based on the individual information VI1 to VI3 of one registration screen acquisition address GF1 to GF3 generated as an encoding target at this time and the code version table, the registration screen acquisition addresses GF1 to GF1 of the encoding target. The optimal code version corresponding to GF3 is also detected.

  Thereby, the encoding unit 28 compares the specified code version detected in this way with the optimum code version. As a result, when the optimal code version is a code version equal to or lower than the specified code version, the encoding unit 28 encodes the one registration screen acquisition address GF1 to GF3 to be encoded as it is without dividing it into the optimal code version. Even if the two-dimensional code is generated, it is highly possible that the two-dimensional code can be decoded by the code reading device 14 to be read and used, so that the registration screen acquisition address GF1 to be encoded based on the comparison result Through GF3 encoding conditions are set. Incidentally, the encoding unit 28 encodes the encoding condition without dividing the registration screen acquisition addresses GF1 to GF3 to be encoded at this time, and the code version of the two-dimensional code generated by the encoding is the optimum code version. Set to indicate that

  On the other hand, when the optimum code version is a code version higher than the specified code version, the encoding unit 28 encodes one registration screen acquisition address GF1 to GF3 to be encoded as it is without dividing it. Even when the two-dimensional code is generated, the two-dimensional code cannot be decoded by the code reading device 14 to be read and used, so that it is determined to divide the encoding target registration screen acquisition addresses GF1 to GF3. That is, the encoding unit 28 generates a two-dimensional code by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded as a plurality of divided portions each having a smaller amount of information, thereby generating the two-dimensional code. The registration screen acquisition addresses GF1 to GF3 are determined to be expressed by a plurality of two-dimensional codes.

  At this time, the encoding unit 28 divides the registration screen acquisition addresses GF1 to GF3 to be encoded, by using the information amount table, for example, the maximum information amount of information that can be expressed by the two-dimensional code specified by the specified code version. It is detected as the division reference maximum information amount that is a reference for this. Then, as shown in FIGS. 9A and 9B, the encoding unit 28 uses the detected division reference maximum information amount to set the registration screen acquisition addresses GF1 to GF3 to be encoded, for example, the common information FI1. As in (DP1) and individual information VI1 to VI3 (DP2), the division position and the number of divisions are sequentially determined from the description start side to the description end side.

  However, when the encoding unit 28 actually divides the registration screen acquisition addresses GF1 to GF3 to be encoded, the encoding unit 28 is a part of the registration screen acquisition addresses GF1 to GF3 for the divided portions DP1 to DP5, respectively. By indicating the number from the start side, information for connecting the divided parts DP1 to DP5 and restoring the original registration screen acquisition addresses GF1 to GF3 later (hereinafter referred to as restoration use) RS1 to RS5 are added.

  Incidentally, the encoding unit 28 reads the two-dimensional code representing the divided portions DP1 to DP5 with respect to the restoration usage information RS1 to RS5 added to the plurality of divided portions DP1 to DP5 of the registration screen acquisition addresses GF1 to GF3. In this case, for example, a message for notifying the number of the divided portions DP1 to DP5 represented by the read two-dimensional code from the description start side and the instruction information for instructing the display of the message are embedded. Yes. As a result, the encoding unit 28 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded as a plurality of divided portions DP1 to DP5 and expresses them by a plurality of two-dimensional codes. The original registration screen acquisition addresses GF1 to GF3 can be restored by reading all the dimension codes.

  Therefore, the encoding unit 28 considers adding the restoration usage information RS1 to RS5 to the plurality of division parts DP1 to DP5, respectively, and the plurality of division parts DP1 to DP5 and the restoration usage information RS1 to be added thereto. The total information amount with RS5 is equal to or smaller than the division reference maximum information amount, and the division position and the division number are determined so as to reduce the division number as much as possible with respect to the registered screen acquisition addresses GF1 to GF3, for example. As a result, the encoding unit 28 sets encoding conditions for the registration screen acquisition addresses GF1 to GF3 to be encoded based on the determined content.

  Incidentally, the encoding unit 28 sets the encoding condition at this time so as to indicate the division position and the number of divisions for the registration screen acquisition addresses GF1 to GF3 to be encoded. Further, the encoding unit 28 restores the plurality of divided portions DP1 to DP5 obtained by dividing the encoding condition from the registration screen acquisition addresses GF1 to GF3 to be encoded according to the division position and the number of divisions, respectively. The code versions of the plurality of two-dimensional codes that are encoded and generated as address partial information AP1 to AP5 together with RS5 are set so as to indicate that they are all specified code versions.

  When the encoding unit 28 sets the encoding condition in this way, the size of the two-dimensional code generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded (hereinafter, this is particularly referred to as the code size). And the resolution (hereinafter referred to as “code resolution”). By the way, the code size is expressed by, for example, the length of one side of a square two-dimensional code. The code resolution represents the size of one minimum constituent unit of a square in the two-dimensional code, for example, by the length of one side in the minimum constituent unit.

  However, as a determination method for determining the code size and code resolution of the two-dimensional code, for example, there are two first and second determination methods. Therefore, hereinafter, the first determination method will be described first, and then the second determination method will be described. Incidentally, the encoding unit 28 applies any one of the first and second determination methods, and applies one of the first and second determination methods, and according to the applied first or second determination method, The code size and code resolution of the two-dimensional code generated by encoding the registration screen acquisition addresses GF1 to GF3 are determined.

  When the first determination method is applied, the encoding unit 28 reads a plurality of application versions of the decoding application program and reading conditions (that is, a two-dimensional code) defined by the decoding application program of the application version. A data table (hereinafter, referred to as a reading condition table) in which the accuracy of autofocus, the presence / absence and degree of zooming, and the like) are associated with each other is stored in advance.

  The encoding unit 28 first executes a reading resolution detection process for detecting a reading resolution when reading the two-dimensional code with the code reading device 14 to be used for reading. At this time, the encoding unit 28 reads the two-dimensional code with the code reading device 14 to be read based on the application version indicated by the reading performance information RP read as the code reading information CR and the reading condition table. The reading condition is detected. The encoding unit 28 also detects the detected reading condition, the reading distance indicated by the reading environment information RM read as the code reading information CR, and the light receiving surface size indicated by the reading performance information RP read as the code reading information CR. Based on the number of pixels on the light receiving surface and the reading resolution, the reading resolution of the two-dimensional code in the code reading device 14 to be read is detected.

  Here, the reading resolution refers to the minimum structural unit that can be read without blurring the outline of the minimum structural unit when the two-dimensional code is read by the code reading device 14 to be read and used (in a focused state). (For example, the length of one side in a square minimum structural unit is expressed in millimeters, which is hereinafter referred to as a minimum reading size). Incidentally, in the code reading device 14 to be read and used, the reading resolution is proportional to the number of pixels on the light receiving surface (that is, the larger the number of pixels on the light receiving surface, the smaller the minimum reading unit size that can be read). The longer the is, the larger the minimum reading size is.

  When the encoding unit 28 detects the reading resolution by the reading resolution detection process, the encoding unit 28 then executes a code resolution determination process for determining the code resolution of the two-dimensional code. In this case, the encoding unit 28 determines the pixel size of one pixel (for example, one square) on the display unit of the data acquisition device 11 based on the display resolution indicated by the display performance information IP read as the code reading information CR. The length of one side of a pixel is expressed in millimeters, and this is hereinafter simply referred to as pixel size). Incidentally, even if the pixel size has the same display surface size, for example, when compared with a plurality of display units having different display resolutions, the pixel size becomes smaller in proportion to the display resolution.

  The encoding unit 28 sets the reading resolution (that is, the minimum reading size) to Rmm, the pixel size to Pmm, and the number of pixels used to display one side of one minimum structural unit (hereinafter, this is used for display). The number of images is N, and the multiplication result of the pixel size Pmm and the display use pixel number N represents the code resolution described above (for example, the display size of one side in one square minimum configuration unit is expressed in millimeters). ), The display use pixel number N is expressed by equation (1).

  Pmm × N ≧ Rmm (1)

And the reading resolution Rmm indicated by the right side of the equation (1) and the code resolution indicated by the left side are calculated to be as close as possible. Thereby, the encoding unit 28 determines the value of the code resolution as a multiplication result of the display use pixel number N and the pixel size Pmm.

  After determining the code resolution by the code resolution determination process in this way, the encoding unit 28 then executes a code size determination process for determining the code size of the two-dimensional code. In the code size determination process, the encoding unit 28 determines the code version based on the code version (that is, the optimal code version or the specified code version) indicated by the encoding condition set as described above and the information amount table. The number of minimum constitutional units arranged on one side defined in the two-dimensional code (hereinafter simply referred to as the minimum constitutional unit number) is detected. The encoding unit 28 sets the code resolution indicated by the left side of the expression (1) to Cmm, sets the minimum number of structural units to M, and further sets the above-described code size (for example, the length of one side in a square two-dimensional code). (Expression in millimeters) as CS, formula (2)

CS = Cmm × M
= (Pmm × N) × M (2)

The code size CS is calculated by multiplying the code resolution Cmm by the minimum unit number M. When the encoding unit 28 calculates the code size CS in this manner, the code display region is based on the code display region size indicated by the display performance information IP read as the code reading information CR and the pixel size Pmm described above. The size (ie, expressed in number of pixels) is converted to a length in millimeters. Then, the encoding unit 28 compares the code display area size converted into millimeter units (hereinafter referred to as a converted code display area size) and the code size CS.

  Accordingly, the encoding unit 28 uses the registration screen acquisition addresses GF1 to GF3 to be encoded as they are or according to the encoding condition in the code display area of the display unit of the data acquisition device 11 according to the comparison result. It is determined whether or not one of the two-dimensional codes generated by encoding as the address partial information AP1 to AP5 can be displayed.

  As a result, when the code size CS is equal to or smaller than the converted code display area size, the encoding unit 28 has a registration screen acquisition address GF1 to be encoded in the code display area in the display unit of the data acquisition device 11 according to the encoding condition. One of the two-dimensional codes generated by encoding GF3 can be displayed. Therefore, the encoding unit 28 determines the code size CS at this time as the code size of the two-dimensional code generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded. Then, the encoding unit 28 adds the code size CS together with the code resolution Cmm to the above-described encoding condition, and determines the content of the encoding condition.

  On the other hand, when the code size CS is larger than the converted code display area size, the encoding unit 28 has a registration screen acquisition address to be encoded in the code display area in the display unit of the data acquisition device 11 according to the encoding condition. One of the two-dimensional codes generated by encoding GF1 to GF3 cannot be displayed. Accordingly, the encoding unit 28 erases the code size CS at this time, and once cancels the setting of the encoding condition described above.

  When the code size is deleted in the code size determination process in this way, the encoding unit 28 executes the encoding condition setting process. Accordingly, the encoding unit 28 at this time uses, for example, one code version (that is, the optimum code version or the specified code version) indicated by the encoding condition canceled by the code size determination process based on the information amount table. The maximum information amount of information that can be expressed by the two-dimensional code defined in the lower code version is detected as a new division reference maximum information amount. Thereby, the encoding unit 28 determines the division position and the number of divisions for the registration screen acquisition addresses GF1 to GF3 to be encoded using the detected new division reference maximum information amount in the same manner as described above. A new encoding condition is set based on the determined content.

  When the encoding unit 28 sets a new encoding condition in the encoding condition setting process in this way, the code resolution determined based on the new encoding condition and determined in the code resolution determination process described above. The code size determination process is executed again using Cmm. Thereby, the encoding unit 28 newly calculates the code size CS and compares the calculated new code size CS with the converted code display area size. As a result, when the new code size CS is equal to or smaller than the converted code display area size, the encoding unit 28 generates the new code size CS by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded. The code size of the two-dimensional code is determined. Then, the encoding unit 28 adds the new code size CS together with the code resolution Cmm to a new encoding condition, and determines the content of the new encoding condition.

  However, even if the encoding unit 28 executes the code size determination process again in this way, if the new code size CS is larger than the converted code display area size, the encoding unit 28 deletes the new code size CS and creates a new code size CS. The setting of the encoding condition is once canceled and the encoding condition setting process and the code size determination process are sequentially executed again in the same manner as described above. That is, when the encoding unit 28 cannot calculate the code size CS of the two-dimensional code that fits in the code display area even after executing the code size determination process after sequentially executing the reading resolution detection process and the code resolution determination process. While gradually increasing the number of divisions for the registration screen acquisition addresses GF1 to GF3 to be encoded, the code size CS is gradually reduced accordingly, and the code size CS of the two-dimensional code that fits in the code display area is set. Until it can be calculated, the encoding condition setting process and the code size determination process are repeatedly executed.

  In this way, when the first determination method is applied, the encoding unit 28 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded and generates the code size CS together with the code resolution Cmm of the two-dimensional code generated. Is determined.

  On the other hand, when the second determination method is applied, the encoding unit 28 uses a data table for detecting a reading resolution (hereinafter referred to as a reading resolution detecting table) RT as shown in FIG. keeping. In this case, in the reading resolution detection table RT, a plurality of combinations of various reading distances RL and various light receiving surface pixel numbers CP are indicated by correspondences between one reading distance RL and one light receiving surface pixel number CP, respectively. In addition, various reading resolutions Rmm determined according to the combination of the reading distance RL and the light receiving surface pixel number CP are associated with the combination of the reading distance RL and the light receiving surface pixel number CP. Incidentally, the reading resolution Rmm in FIG. 10 indicates that the reading resolution Rmm has a larger value as the number attached to “R” is larger.

  The encoding unit 28 first executes a reading resolution detection process. In this case, the encoding unit 28 uses the reading resolution detection table RT to determine one light receiving surface pixel number CP indicated by the reading performance information RP read as the code reading information CR and the reading environment read as the code reading information CR. One reading resolution Rmm corresponding to a combination with one reading distance RL indicated by the information RM (matching or a combination of close values) is detected.

  By the way, regarding the reading resolution Rmm, when the value is calculated as accurately as possible, it is necessary to consider the reading conditions defined in the application version as in the first determination method described above. However, the reading conditions differ depending on the application version. In the reading resolution detection table RT, when the reading conditions are also used for the combination of the reading distance RL and the number of light receiving surface pixels CP, for example, for each of the reading distance RL and the number of light receiving surface pixels CP of each combination, there are actually more types. Therefore, it is necessary to obtain and associate the reading resolution Rmm for each combination, and the configuration of the entire reading resolution detection table RT may become complicated.

  However, in the reading resolution detection table RT shown in FIG. 10, the reading distance RL of each combination and the reading distance RL and the number of light receiving surface pixels CP of each combination are not combined with each other without combining a plurality of types of reading conditions. The configuration is simplified by associating one reading resolution Rmm with each light receiving surface pixel number CP. In the reading resolution detection table RT, as the reading resolution Rmm associated with one set of reading distance RL and the number of light receiving surface pixels CP, actually, a plurality of types of readings are further added to the set of reading distance RL and the number of light receiving surface pixels CP. One reading resolution Rmm having a maximum value is selected from various reading resolutions Rmm required when the conditions are combined.

  Accordingly, the encoding unit 28 actually adds a reading condition to the set of reading distance RL and the number of light receiving surface pixels CP indicated by the reading environment information RM and the reading performance information RP, so that the value of the reading resolution Rmm is increased. On the other hand, even when the value is relatively large, detection of a reading resolution Rmm having a relatively small value is avoided, and reading resolution Rmm having a relatively large value is detected. Also, the encoding unit 28 compares the value of the reading resolution Rmm by actually adding further reading conditions to the set of reading distance RL and the number of light receiving surface pixels CP indicated by the reading environment information RM and the reading performance information RP. Even if it is small, a relatively large reading resolution Rmm is detected.

  That is, the encoding unit 28 detects one reading resolution Rmm that can almost certainly read the two-dimensional code when the code reading device 14 to be used for reading actually reads the two-dimensional code. Then, when the encoding unit 28 detects one reading resolution Rmm using the reading resolution detection table RT in the reading resolution detection processing as described above, the same processing as that in the case where the first determination method described above is applied is then performed. The code resolution determination process and the code size determination process are sequentially executed.

  As a result, the encoding unit 28 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded, even when the second determination method is applied, as in the case where the first determination method is applied. The code resolution Cmm and the code size CS of the two-dimensional code to be generated are sequentially determined. Then, the encoding unit 28 uses the determined code resolution Cmm and code size CS to determine the content of the encoding condition for the registration target screen acquisition addresses GF1 to GF3 to be encoded.

  As shown in FIGS. 11A and 11B, the encoding unit 28 uses the first or second determination method in this way to encode the registration conditions for one registered screen acquisition address GF1 to GF3. When the content of is determined, one registration screen acquisition address GF1 to GF3 to be encoded is encoded according to the encoding condition without being divided or divided into a plurality of pieces of address partial information AP1 to AP5. Thereby, the encoding unit 28 expresses one registration screen acquisition address GF1 to GF3 to be encoded, and generates one or a plurality of two-dimensional codes TDC1 having the previously determined code resolution Cmm and code size CS. Then, when the encoding unit 28 generates one or a plurality of two-dimensional codes TDC1 to TDC3 as described above, the encoding unit 28 sends them to the control unit 20.

  Therefore, when one or more two-dimensional codes TDC1 to TDC3 are given from the encoding unit 28, the control unit 20 transmits the one or more two-dimensional codes TDC1 to TDC3 to the data acquisition device via the network 12 by the communication unit 23. 11 to send. Thereby, the control unit 20 displays and presents one two-dimensional code TDC1 or a plurality of two-dimensional codes TDC2 and TDC3 together with the presentation information in the data acquisition device 11, and thus one or more two-dimensional codes TDC1 to TDC3 are displayed. The code reader 14 can be read.

  By the way, as will be described later, when the code reading device 14 reads one two-dimensional code TDC1 or a plurality of two-dimensional codes TDC2 and TDC3 displayed on the data acquisition device 11, the one two-dimensional code TDC1 or the plurality of two-dimensional codes TDC1 The original registration screen acquisition address GF1 can be restored using the two-dimensional codes TDC2 and TDC3. Then, the code reading device 14 transmits registration screen request information for requesting registration screen data to the data providing device 13 via the network 12 in accordance with the registration screen acquisition address GF1.

  For this reason, when the registration screen request information is transmitted from the code reading device 14, the control unit 20 receives and captures the registration screen request information by the communication unit 23. Then, the control unit 20 reads the corresponding registration screen data from the screen data storage unit 22 in accordance with the registration screen request information. As a result, the control unit 20 transmits the registration screen data to the code reading device 14 via the network 12 by the communication unit 23, and thus causes the code reading device 14 to present a registration screen based on the registration screen data to the user. it can.

  When the code reader 14 receives a user's e-mail address or the like for user registration so as to subscribe to the e-mail magazine on the registration screen, the code reader 14 stores the registration information in the network. The data is transmitted to the data providing device 13 via 12. Therefore, when the registration information is transmitted from the code reading device 14, the control unit 20 of the data providing device 13 receives and captures the registration information by the communication unit 23. Then, the control unit 20 stores the registration information in, for example, a registration information storage unit (not shown), thereby registering a user who wants to subscribe to the mail magazine as a user.

  As a result, each time the mail magazine is periodically issued and stored in the screen data storage unit 22, the control unit 20 stores the mail magazine via the network 12 according to the registration information. 14 to send. In this way, the control unit 20 can display the mail magazine with the code reader 14 of the user registered as a user, thus making the user enjoy the mail magazine.

  Next, a detailed hardware configuration of the functional circuit block of the data acquisition device 11 will be described with reference to FIG. In the data acquisition device 11, when various commands are input by a user operation to the operation unit 31 including a plurality of operation keys, the control unit 30 controls the entire device according to the input various commands, Perform various processes. Accordingly, the control unit 30 provides a media playback function for playing music data from a medium such as a CD (Compact Disc) loaded in the data acquisition device 11, a recording function for recording the music data recorded on the medium, and data provision Various functions such as a music purchase function for purchasing music data from the apparatus 13 and an acquired music reproduction function for reproducing music data acquired by recording or purchase are realized.

  Actually, when a function selection command for selecting a media playback function is input via the operation unit 31 by the user, the control unit 30 executes the media playback function accordingly. In this case, the control unit 30 causes the reproduction unit 32 to reproduce the music data recorded on the medium loaded in the data acquisition apparatus 11 and output it as music. Thereby, the control part 30 can make a user listen to the music reproduced | regenerated from the medium.

  Further, when a function selection command for selecting a recording function is input via the operation unit 31 by the user, the control unit 30 executes the recording function in response thereto. In this case, the control unit 30 causes the reproduction unit 32 to read out music data from the media loaded in the data acquisition device 11, compress and encode the music data using a predetermined compression encoding method, and then send the music data to the data storage unit 33. To do. As a result, the control unit 30 stores music data in a predetermined format such as ATRAC3 format or MP3 format in the data storage unit 33.

  Incidentally, when recording the music data from the media, the control unit 30 requests the music related information of the music data from the external related information providing device (not shown) by the communication unit 34. As a result, when the music related information transmitted from the related information providing apparatus is received and taken in by the communication unit 34, the control unit 30 sends the music related information to the data storage unit 33. Thus, the control unit 30 stores the music related information in association with the music data in the data storage unit 33.

  Further, when a function selection command for selecting a music purchase function is input via the operation unit 31 by the user, the control unit 30 executes the music purchase function accordingly. In this case, the control unit 30 transmits service provision request information for requesting to receive provision of music-related services to the data providing apparatus 13 via the network 12 by the communication unit 34. As a result, when the music screen acquisition address of the music introduction screen data is transmitted from the data providing device 13 via the network 12, the control unit 30 receives and captures the music screen acquisition address by the communication unit 34.

  Thereby, the control unit 30 transmits the introduction screen request information for requesting the music introduction screen data to the data providing apparatus 13 via the network 12 according to the music screen acquisition address. As a result, when the music introduction screen data is transmitted from the data providing device 13 via the network 12, the control unit 30 receives the music introduction screen data by the communication unit 34 and sends it to the display control unit 35. Thereby, the control unit 30 causes the display control unit 35 to display a music introduction screen based on the music introduction screen data on the display unit 36.

  In this state, when the user designates desired music data on the music introduction screen via the operation unit 31 by the user, the control unit 30 extracts a corresponding music screen acquisition address from the music introduction screen data. Then, the control unit 30 transmits purchase screen request information for requesting music purchase screen data according to the music screen acquisition address to the data providing apparatus 13 via the network 12 by the communication unit 34. As a result, when the music purchase screen data is transmitted from the data providing device 13 via the network 12, the control unit 30 receives the music purchase screen data by the communication unit 34 and sends it to the display control unit 35. Thereby, the control unit 30 causes the display control unit 35 to display a music purchase screen based on the music purchase screen data on the display unit 36.

  In this state, when the user inputs various pieces of information regarding purchase of desired music data on the music purchase screen via the operation unit 31, the control unit 30 responds to the desired music data from the music purchase screen data. Take out the music acquisition address. Further, the control unit 30 generates music purchase request information for requesting purchase of desired music data based on various pieces of information regarding purchase input by the user. Then, the control unit 30 transmits the music purchase request information to the data providing device 13 via the network 12 by the communication unit 34 according to the music acquisition address.

  As a result, when the accounting process for the purchase of the music data is completed from the data providing device 13 and the music data and the corresponding music related information are transmitted via the network 12, the control unit 30 receives them. The data is received by the communication unit 34 and sent to the data storage unit 33. Thereby, the control unit 30 stores the music data and the music related information in the data storage unit 33 in association with each other. In this way, the control unit 30 can purchase music data from the data providing device 13 and store it in the data storage unit 33.

  Furthermore, when a function selection command for selecting the acquired music playback function is input via the operation unit 31 by the user, the control unit 30 executes the acquired music playback function accordingly. In this case, the control unit 30 reads out music data designated by the user from the data storage unit 33, causes the reproduction unit 32 to reproduce the music data (including the decoding process), and outputs the music data. Thereby, the control unit 30 can make the user listen to the music data stored in the data storage unit 33 as music. In this way, the control unit 30 realizes a media playback function, a recording function, a music purchase function, and an acquired music playback function in accordance with a user operation.

  By the way, while the data acquisition device 11 is operating, the control unit 30 periodically transmits provision request information for requesting the provision information RE to the data provision device 13 via the network 12 by the communication unit 34. In this way, each time the provision information RE is returned from the data provision device 13 via the network 12 in response to the transmission of the provision request information, the control unit 30 receives and retrieves the provision information RE by the communication unit 34. . Then, the control unit 30 sends the provision information RE to the provision information storage unit 37 and stores it.

  Incidentally, when receiving the provision information RE transmitted from the data providing apparatus 13, the control unit 30 stores the provision information RE in the provision information storage unit 37. In the provision information storage unit 37, The provision information RE received at this time is stored over the already stored provision information RE. In this way, the control unit 30 changes the provision information RE in the provision information storage unit 37 to a new content only when provision information RE different from the provision information RE already provided from the data provision device 13 is provided. Has been updated.

  Then, the control unit 30 performs, for example, a function execution status on the display unit 36 by the display control unit 35 while executing various functions such as a media playback function, a recording function, a music purchase function, and an acquired music playback function. A function execution screen for notifying information (hereinafter referred to as function execution information) is displayed. Further, when the function execution screen is displayed on the display unit 36 in this way, the control unit 30 presents the presentation information according to the function execution information in the function execution screen based on the presentation usage information BU1 to BUN in the provided information RE. Is also displayed. Thereby, when executing various functions, the control unit 30 presents the presentation information together with the function execution status to the user via the function execution screen.

  Here, the display of the function execution screen on the display unit 36 will be specifically described by taking as an example the case of executing the acquired music playback function among the various functions executed by the control unit 30. When executing the acquired music playback function in response to a user operation, the control unit 30 reads the screen data for the acquired music playback function stored in the screen data storage unit 38. Further, the control unit 30 reads out music data designated to be played back by the user from the data storage unit 33 and sends it to the playback unit 32, and also reads out music related information corresponding to the music data. Further, the control unit 30 extracts the music title, artist name, album title, and photo image acquisition address from the music related information.

  Then, the control unit 30 transmits image request information for requesting the jacket photo image data according to the photo image acquisition address via the network 12 to the data providing device 13, for example. As a result, when the jacket photo image data is transmitted from the data providing apparatus 13 via the network 12, the control unit 30 receives and captures the jacket photo image data by the communication unit 34. As a result, the control unit 30 synthesizes the music title, artist name and album title information and the jacket photo image data as the function execution information data into the screen data, thus generating the function execution screen data.

  In addition to this, the control unit 30 reads the provision information RE from the provision information storage unit 37 at this time, and extracts the plurality of presentation usage information BU1 to BUN included therein from the read provision information RE. Further, the control unit 30 extracts the presentation character string information BW and the presentation image acquisition address BP from the presentation usage information BU1 to BUN, respectively. Further, the control unit 30 transmits the presentation image request information for requesting the presentation image data according to the presentation image acquisition address BP to the data providing device 13 via the network 12 by the communication unit 34. As a result, when the presentation image data is transmitted from the data providing apparatus 13 via the network 12, the control unit 30 receives and captures the presentation image data by the communication unit 34.

  And the control part 30 synthesize | combines the presentation character string information BW and presentation image data for every presentation use information BU1 thru | or BUN with function execution screen data suitably as presentation information data. The control unit 30 sends function execution screen data obtained by combining the presentation information data to the display control unit 35. Thereby, the control unit 30 causes the display control unit 35 to display the function execution screen 40 as shown in FIG. 13 based on the function execution screen data on the display unit 36.

  In this case, the function execution screen 40 has a music title 41, an album title 42, an artist name 43, and a jacket photo corresponding to the music data currently being reproduced as function execution information corresponding to the acquired music reproduction function. An image 44 is displayed. In addition, the function execution screen 40 is provided with a strip-like presentation information display area 45 parallel to the horizontal direction of the screen on the lower side. For example, a presentation image 46 and a presentation character string 47 are horizontally 1 in the presentation information display area 45. It is displayed as one presentation information 48 arranged in one column.

  Further, when the control unit 30 displays one presentation information 48 of one line in the presentation information display area 45 of the function execution screen 40 in this way for a predetermined time, the display control unit 35 puts the presentation information display area 45 in the presentation information display area 45. One presentation information 48 of one line structure to be displayed is switched. In this way, while the function execution screen 40 is displayed on the display unit 36, the control unit 30 sequentially switches and displays one presentation information 48 in the presentation information display area 45, and thus presents individual presentations to the user. The information 48 can be presented in order.

  By the way, the control unit 30 displays the presentation information 48 together with the function execution screen 40 on the display unit 36, and the operation unit 31 is operated by the user, and any one of the presentation information 48 is displayed on the function execution screen 40. When designated, the presentation identification information BD is extracted from the presentation usage information BU1 to BUN corresponding to the designated presentation information 48. The control unit 30 stores the presentation identification information BD, and generates detailed screen request information for requesting detailed screen data corresponding to the presentation information 48 specified by the user. Then, the control unit 30 transmits the detailed screen request information to the data providing apparatus 13 via the network 12 by the communication unit 34.

  As a result, when the detailed screen acquisition address PL is transmitted from the data providing device 13 via the network 12, the control unit 30 receives and captures the detailed screen acquisition address PL. At this time, the control unit 30 transmits screen presentation request information for requesting presentation of a detailed screen based on the detailed screen data to the data providing apparatus 13 via the network 12 according to the detailed screen acquisition address PL.

  In response to this, when the detailed screen data corresponding to the presentation information 48 designated by the user is transmitted from the data providing apparatus 13 via the network 12, the control unit 30 receives the detailed screen data by the communication unit 34. And capture. The control unit 30 sends the detailed screen data to the display control unit 35. As a result, the control unit 30 causes the display control unit 35 to display a detailed screen 50 as shown in FIG. 14, for example, based on the detailed screen data on the display unit 36. Incidentally, the detailed screen 50 corresponds to news as notification information 48 designated by the user, for example, to notify a new single release by a specific artist.

  In this case, the detailed screen 50 is provided with a title display section 51 having a plurality of title display fields 51A to 51E arranged in the vertical direction of the screen. In each of the title display fields 51A to 51E of the title display unit 51, single music titles released so far by a specific artist are displayed. The title display unit 51 is provided with a scroll operation unit 51F for switching the title display fields 51A to 51E displayed in the title display unit 51. Further, in each title display column 51A to 51E, when the audition data is associated with the displayed music title, for example, a mark 51G schematically showing the shape of the speaker is also displayed.

  Further, the detailed screen 50 is provided with an image display area 52 for displaying an image such as a jacket photo corresponding to the music title displayed in the title display fields 51A to 51E on the left side of the screen. Further, the detailed screen 50 is provided with a list presentation button 53 for requesting to present a list of music titles corresponding to all music data released so far by a specific artist. The detail screen 50 is also provided with a profile presentation button 54 for requesting the presentation of a profile of a specific artist. Incidentally, at the lower end of the detail screen 50, for example, among the various operation keys provided in the operation unit 31, operation keys that can be used for inputting various commands on the detail screen 50, and the operation keys can be used for input. Various marks and the like for notifying the user of commands are displayed.

  When the user selects and instructs one of the music titles associated with the audition data via the title display fields 51A to 51E on the detail screen 50 displayed on the display unit 36, the detail screen 50 The network address for acquiring the audition data stored in the data is extracted. And the control part 30 transmits the audition request information which requests | requires audition data according to this network address to the data provision apparatus 13 via the network 12 by the communication part 34. FIG. As a result, when the trial data transmitted from the data providing device 13 via the network 12 is received by the communication unit 34, the control unit 30 sends the received trial data to the reproduction unit 32 for reproduction. As a result, the control unit 30 allows the user to listen to music corresponding to the selected music title.

  In addition, when any music title is selected and instructed by the user via the title display fields 51A to 51E, the control unit 30 extracts the network address for acquiring jacket photo image data stored in the detailed screen data. Then, the control unit 30 transmits photo image request information for requesting jacket photo image data according to the network address to the data providing device 13 via the network 12 by the communication unit 34. As a result, when the control unit 30 receives the jacket photo image data transmitted from the data providing device 13 via the network 12 by the communication unit 34, the control unit 30 displays the jacket photo image based on the received jacket photo image data on the detailed screen 50. Are displayed in the image display area 52.

  Further, when the list display button 53 is selected and instructed on the detailed screen 50 by the user, the control unit 30 takes out the network address for acquiring the music title list stored in the detailed screen data. Then, the control unit 30 transmits list request information for requesting a music title list according to the network address to the data providing apparatus 13 via the network 12 by the communication unit 34. As a result, when the communication unit 34 receives the music title list transmitted from the data providing apparatus 13 via the network 12, the control unit 30 displays the music titles in the received music title list, for example, the title display on the detail screen 50. (Or display a list screen for presenting a plurality of music titles included in the music title list instead of the detailed screen 50 on the display unit 36).

  Further, when the profile presentation button 54 is selected and instructed on the detail screen 50 by the user, the control unit 30 takes out the network address for acquiring profile data stored in the detail screen data. And the control part 30 transmits the profile request information which requests | requires profile data according to this network address to the data provision apparatus 13 via the network 12 by the communication part 34. FIG. As a result, when the control unit 30 receives the profile data transmitted from the data providing device 13 via the network 12 by the communication unit 34, the control unit 30 displays the profile based on the received profile data in, for example, the image display area 52 of the detail screen 50. (Or display the profile screen based on the profile data instead of the detailed screen 50 on the display unit 36).

  As a result, the control unit 30 can visually check a single music title and jacket photo image released by a specific artist, a profile of the specific artist, and the like, and can actually listen to the single. In this way, when the user designates the presentation information 48 that is news for notifying the release of a new single by a specific artist, for example, the control unit 30 displays the detailed screen acquired from the data providing device 13 accordingly. As the detailed screen 50 based on the data, various kinds of information related to the content of the presentation information 48 can be additionally presented to the user.

  By the way, the control unit 30 stores the display performance information IP described above in advance in the display information storage unit 60. Then, prior to the start of the request for the provision information RE to the data providing device 13, the control unit 30 transmits the acquisition request information for requesting acquisition of the code reading information CR from the data providing device 13 through the network 12. The acquisition request information is received and captured by the communication unit 34.

  At this time, the control unit 30 notifies the acquisition unit 61 of reception of the acquisition request information. Then, in response to the notification from the control unit 30, the acquisition unit 61 stores reading device information (that is, device attribute information MA, reading performance information RP, and reading environment information RM) stored in advance from the screen data storage unit 38, for example. Is read and sent to the display control unit 35. Thereby, the acquisition unit 61 causes the display control unit 35 to display a reading information input screen (not shown) based on the reading information input screen data on the display unit 36.

  When the reading device information is input on the reading information input screen by the user via the operation unit 31, the acquisition unit 61 sends the input reading device information to the control unit 30. Therefore, when the reading device information is given from the acquisition unit 61, the control unit 30 reads the display performance information IP from the display information storage unit 60 accordingly. As a result, the control unit 30 combines the reading device information input on the reading information input screen and the display performance information IP read from the display information storage unit 60 into the code reading information CR, and sets the code reading information CR as the code reading information CR. The data is transmitted to the data providing apparatus 13 via the network 12 by the communication unit 34. In this way, the control unit 30 can provide and hold the code reading information CR to the data providing apparatus 13.

  Further, as a result of transmitting the code reading information CR to the data providing device 13, when the device identification information MID is issued from the data providing device 13 and transmitted through the network 12, the control unit 30 sets the device identification information MID. Received and received by the communication unit 34. Then, the control unit 30 sends the device identification information MID to the identification information storage unit 62 for storage. Thereby, the control unit 30 thereafter requests the data providing apparatus 13 to acquire the two-dimensional codes TDC1 to TDC3 using the apparatus identification information MID every time it requests the acquisition of the two-dimensional codes TDC1 to TDC3. The data acquisition device 11 can be discriminated.

  Actually, when the function selection command is input by the user via the operation unit 31, the control unit 30 reads the device identification information MID from the identification information storage unit 62 in addition to the series of processes described above. Then, the control unit 30 transmits code acquisition request information for requesting acquisition of the two-dimensional codes TDC1 to TDC3 together with the device identification information MID to the data providing device 13 via the network 12 by the communication unit 34.

  As a result, when one two-dimensional code TDC1 or a plurality of two-dimensional codes TDC2 and TDC3 are transmitted from the data providing device 13 via the network 12, the control unit 30 transmits the one two-dimensional code TDC1 or the plurality of two-dimensional codes TDC1. The dimension codes TDC2 and TDC3 are received and captured by the communication unit 34. Then, the control unit 30 synthesizes the received two-dimensional code TDC1 or the plurality of two-dimensional codes TDC2 and TDC3 with the function execution screen data.

  Here, when the control unit 30 synthesizes one two-dimensional code TDC1 transmitted from the data providing device 13 with the function execution screen data, for example, in the presentation information display area 45 of the function execution screen 40 described above with reference to FIG. 46 between the presentation image display part displaying 46 and the presentation character string display part displaying the presentation character string 47, with the same width as the width of the presentation information display area 45 (that is, the vertical width of the screen), In addition, a code display area 45A having the same shape as that of the two-dimensional code TDC1 (that is, a square in this embodiment) is provided.

  Then, as shown in FIGS. 15A and 15B, the control unit 30 aligns, for example, the center of one two-dimensional code TDC1 with the center of the code display area 45A on the function execution screen 40. In this state, the control unit 30 has the code resolution Cmm and the code size CS corresponding to the code reading performance and the code reading environment of the code reading device 14 to be read and the display performance of the data acquisition device 11 in the code display area 45A. One two-dimensional code TDC1 is displayed.

  On the other hand, when the control unit 30 synthesizes a plurality of (for example, two) two-dimensional codes TDC2 and TDC3 transmitted from the data providing apparatus 13 into the function execution screen data, the same reference numerals are assigned to the corresponding parts to FIG. As shown in FIG. 16, in the presentation information display area 45 of the function execution screen 40, for example, between the presentation image display part and the presentation character string display part, the width of the presentation information display area 45 (that is, the screen vertical direction). A plurality of (for example, two) code display areas 45A and 45B having the same width as that of the two-dimensional codes TDC2 and TDC3 (that is, a square in this embodiment). They are arranged in a line along the horizontal direction of the screen.

  Then, as shown in FIGS. 17A and 17B, the control unit 30 matches the centers of the individual two-dimensional codes TDC2 and TDC3 with the centers of the individual code display areas 45A and 45B on the function execution screen 40. . In this state, the control unit 30 adjusts the code reading performance and the code reading environment of the code reading device 14 to be used for reading and the display performance of the data acquisition device 11 in the plural (for example, two) code display areas 45A and 45B, respectively. The two-dimensional codes TDC2 and TDC3 having the corresponding code resolution Cmm and code size CS are displayed.

  In this way, the control unit 30 sets the code display area 45A and 45B whose sizes are limited to the code display area size by the data providing apparatus 13 as an upper limit, and the code reading performance of the code reading apparatus 14 to be read and used. Two-dimensional codes TDC1 to TDC3 having a code resolution Cmm and a code size CS corresponding to the code reading environment and the display performance of the data acquisition device 11 are displayed. As a result, the control unit 30 does not obstruct the notification of the function execution information on the function execution screen 40 (that is, without hiding it at all), and the code resolution Cmm that can be sufficiently read by the code reading device 14 to be read and used. Two-dimensional codes TDC1 to TDC3 having a code size CS can be displayed.

  In addition, since the control unit 30 does not display the two-dimensional codes TDC1 to TDC3 in the presentation information display area 45 so as to protrude from the code display areas 45A and 45B, one or more two-dimensional codes TDC1 are displayed in the presentation information display area 45. When displaying any of TDC3 to TDC3, it is possible to avoid as much as possible that the presented character string display portion of the presented information 48 with respect to the presented character string 47 narrows in the horizontal direction of the screen. Therefore, the control unit 30 avoids that the presentation character string 47 of the presentation information 48 cannot be partially displayed when any one or a plurality of two-dimensional codes TDC1 to TDC3 is displayed in the presentation information display area 45. can do.

  Next, a detailed hardware configuration of the functional circuit block of the code reader 14 will be described with reference to FIG. In the code reading device 14, when various commands are input by a user operation to the operation unit 71 including a plurality of operation keys, the control unit 70 controls the entire device according to the input various commands, Perform various processes. As a result, the control unit 70 moves the operation unit 71 by the user in a state where the reading unit 72 that is a camera having an image sensor is directed to the two-dimensional codes TDC1 to TDC3 displayed on the display unit 36 of the data acquisition device 11. When a reading command is input via the two-dimensional codes TDC1 to TDC3, the reading unit 72 picks up images and reads them as picked-up image data.

  Incidentally, at this time, the control unit 70 sends captured image data obtained by imaging the two-dimensional codes TDC1 to TDC3 by the reading unit 72 to the display control unit 73. As a result, the control unit 70 causes the display control unit 73 to display the captured images of the two-dimensional codes TDC1 to TDC3 on the display unit 74 based on the captured image data, thus causing the user to capture the imaging state (angle) of the two-dimensional codes TDC1 to TDC3. Or imaging distance).

  Here, in the code reader 14, a decoding application program for decoding the two-dimensional codes TDC1 to TDC3 is provided as a decoding unit 75 and a connection unit 76 shown as functional blocks for convenience of explanation. When reading the two-dimensional codes TDC1 to TDC3, the reading unit 72 sends captured image data obtained by the reading to the decoding unit 75. The decoding unit 75 decodes the captured image data given from the reading unit 72 as two-dimensional codes TDC1 to TDC3.

  Here, as shown in FIGS. 19A and 19B, the decoding unit 75 decodes one two-dimensional code TDC1 generated by encoding one registration screen acquisition address GF1 to GF3 without any division. In this case, only the one registration screen acquisition address GF1 to GF3 that does not include the restoration usage information RS1 to RS5 is generated. When the decryption unit 75 thus generates decryption information that does not include the restoration usage information RS1 to RS5 (that is, one registration screen acquisition address GF1 to GF3), one decryption screen acquisition address GF1 as the decryption information is generated. To GF3 are sent to the controller 70 as they are.

  On the other hand, the decoding unit 75 encodes one registration screen acquisition address GF1 to GF3 as a plurality of pieces of address partial information AP1 to AP5, and one of the two-dimensional codes TDC2 and TDC3 is generated. And when the TDC3 is decoded, address partial information AP1 to AP5 including the restoration usage information RS1 to RS5 is generated. When the decoding unit 75 detects that the decoding information (that is, the address partial information AP1 to AP5) generated by decoding the two-dimensional codes TDC2 and TDC3 includes the restoration usage information RS1 to RS5, The address partial information AP1 to AP5 as the decryption information is sent to the connecting unit 76.

  In this way, when the decoding unit 75 sequentially decodes a plurality of two-dimensional codes TDC2 and TDC3 generated by encoding one registration screen acquisition address GF1 to GF3 as a plurality of address partial information AP1 to AP5, the result The obtained address partial information AP1 to AP5 is sent to the connecting unit 76.

  Incidentally, at this time, the decoding unit 75 sends a message included in the restoration usage information RS1 to RS5 in the address partial information AP1 to AP5 to the display control unit 73. As a result, the decoding unit 75 causes the display control unit 73 to display the message on the display unit 74. Thus, the two-dimensional codes TDC2 and TDC3 read at this time are displayed from the description start side of the registration screen acquisition addresses GF1 to GF3. It is generated based on the second divided portions DP1 to DP5 (that is, only the two-dimensional codes TDC2 and TDC3 representing a part of the original registered screen acquisition addresses GF1 to GF3 are read at this time). .

  Further, every time the address part information AP1 to AP5 is given from the decoding part 75, the connecting part 76 separates the address part information AP1 to AP5 into the divided parts DP1 to DP5 and the restoration usage information RS1 to RS5. In this way, when all of the divided parts DP1 to DP5 divided from one registration screen acquisition address GF1 to GF3 are obtained, the connecting unit 76 uses the restoration usage information RS1 to RS5, and uses these divided parts DP1 to DP5. Are connected in the designated order to generate the original registration screen acquisition addresses GF1 to GF3. Then, the linking unit 76 sends the registration screen acquisition addresses GF1 to GF3 to the control unit 70.

  As a result, the control unit 70 transmits registration screen request information for requesting registration screen data for mail magazine subscription to the data providing device 13 via the network 12 via the network 12 in accordance with the registration screen acquisition addresses GF1 to GF3. To do. As a result, when the registration screen data is returned from the data providing device 13 via the network 12, the control unit 70 receives and captures the registration screen data by the communication unit 77. Then, the control unit 70 sends such registration screen data to the display control unit 73. Thereby, the control unit 70 displays a registration screen (not shown) based on the registration screen data on the display unit 74 by the display control unit 73 and presents it to the user.

  In this state, the control unit 70 receives, as registration information, a mail address or the like of the code reading device 14 for user registration so that the user subscribes to the mail magazine on the registration screen via the operation unit 71. The registration information is transmitted to the data providing apparatus 13 via the network 12 by the communication unit 77. In this manner, the control unit 70 registers the user in the data providing apparatus 13 so that the user can subscribe to the mail magazine.

  Therefore, after that, when a mail magazine is periodically issued from the data providing device 13 and transmitted via the network 12, the control unit 70 receives and takes in the mail magazine by the communication unit 77. Then, the control unit 70 sends out such a mail magazine to the display control unit 73. Thus, the control unit 70 can display the mail magazine on the display unit 74 by the display control unit 73 and entertain the user.

  Next, a first code display processing procedure for generating and displaying the two-dimensional codes TDC1 to TDC3 in the data acquisition device 11 and the data providing device 13 will be described using the flowcharts shown in FIGS. 20 (A) and 20 (B). . That is, when a function selection command is input by the user via the operation unit 31, the control unit 30 of the data acquisition device 11 starts the first code acquisition display processing procedure RT1 shown in FIG. Then, when starting the first code acquisition / display processing procedure RT1, the control unit 30 of the data acquisition device 11 reads the device identification information MID from the identification information storage unit 62 in step SP1, and codes the device identification information MID together with the read device identification information MID. The acquisition request information is transmitted to the data providing apparatus 13 by the communication unit 34, and the process proceeds to the next step SP2.

  At this time, when communication with the data acquisition device 11 is established, the control unit 20 of the data providing device 13 starts the first code generation providing processing procedure RT2 shown in FIG. When the control unit 20 of the data providing device 13 starts the first code generation providing processing procedure RT2, the communication unit 23 transmits the code acquisition request information and the device identification information MID transmitted from the data acquiring device 11 in step SP11. Receive and capture. In response to the reception of the code acquisition request information and the device identification information MID, the control unit 20 reads the code reading information CR corresponding to the device identification information MID from the reading information storage unit 27 by the encoding unit 28, and next The process proceeds to step SP12.

  In step SP12, the control unit 20 reads the common information FI1 from the address storage unit 25 by the encoding unit 28, and reads one piece of individual information VI1 to VI3 corresponding to the carrier name indicated by the code reading information CR. Then, the control unit 20 uses the encoding unit 28 to link the individual information VI1 to VI3 and the common information FI1 to generate one registration screen acquisition address GF1 to GF3 to be encoded, and proceeds to the next step SP13. Move.

  In step SP13, the control unit 20 uses the encoding unit 28 to encode the registration screen acquisition addresses GF1 to GF3 to be encoded based on the code reading information CR, and generates the code resolution of the two-dimensional codes TDC1 to TDC3. Cmm and code size CS are determined, the encoding conditions for the encoding target registration screen acquisition addresses GF1 to GF3 are set, and the process proceeds to the next step SP14.

  In step SP14, the control unit 20 encodes the registration target screen acquisition addresses GF1 to GF3 to be encoded according to the encoding condition by the encoding unit 28 as described above, and the code reading performance of the code reading device 14 to be read and used. Two-dimensional codes TDC1 to TDC3 having a code resolution Cmm and a code size CS corresponding to the code reading environment and the display performance of the data acquisition device 11 are generated, and the process proceeds to the next step SP15. In step SP15, the control unit 20 transmits the two-dimensional codes TDC1 to TDC3 to the data acquisition device 11 through the communication unit 23. Then, the control unit 20 proceeds to the next step SP16 and ends the first code generation provision processing procedure RT2.

  At this time, in step SP2, the control unit 30 of the data acquisition device 11 receives and takes in the two-dimensional codes TDC1 to TDC3 transmitted from the data providing device 13 by the communication unit 34. Then, the control unit 30 causes the display control unit 35 to display the two-dimensional codes TDC1 to TDC3 as a part of the function execution screen 40 on the display unit 36, and then proceeds to the next step SP3 to perform the first code acquisition display process. The procedure RT1 is terminated. In this way, the data acquisition device 11 and the data provision device 13 end all the first code display processing procedures.

(2-2) Operation and Effect of First Embodiment In the above configuration, the data providing device 13 of the data providing and acquiring system 10 displays when the two-dimensional codes TDC1 to TDC3 are displayed from the data acquiring device 11. Display performance information IP indicating performance, reading performance information RP indicating code reading performance when the code reader 14 reads the two-dimensional codes TDC1 to TDC3, reading environment information RM indicating code reading environment, and the code reading device 14 is acquired as the code reading information CR, and the acquired code reading information CR is stored in association with the device identification information MID of the data acquisition device 11.

  In this state, when the device identification information MID is transmitted from the data acquisition device 11 and the acquisition of the two-dimensional codes TDC1 to TDC3 is requested, the data providing device 13 reads the code reading stored in association with the device identification information MID. Search for information CR. Then, the data providing apparatus 13 generates one registration screen acquisition address GF1 to GF3 that can be used by the code reading apparatus 14 as an encoding target in accordance with the carrier name indicated by the code reading information CR.

  Further, the data providing device 13 determines the code resolution Cmm and the code size CS of the two-dimensional codes TDC1 to TDC3 generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded based on the code reading information CR. Then, using the determined code resolution Cmm and code size CS, the encoding conditions for the encoding target registration screen acquisition addresses GF1 to GF3 are set.

  As a result, the data providing device 13 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded in accordance with the encoding conditions, so that the code reading performance and the code reading environment of the code reading device 14 and the display performance of the data acquiring device 11 are improved. One or a plurality of two-dimensional codes TDC1 to TDC3 having a corresponding code resolution Cmm and code size CS are generated. Then, the data providing device 13 transmits the one or more two-dimensional codes TDC1 to TDC3 generated in this way to the data acquisition device 11, so that the size of the function execution screen 40 in the data acquisition device 11 is limited. The two-dimensional codes TDC1 to TDC3 are displayed in the code display areas 45A and 45B.

  Accordingly, the data providing device 13 has a code resolution Cmm and a code resolution Cmm corresponding to the code reading performance and the code reading environment of the code reading device 14 and the display performance of the data acquiring device 11 with respect to the data acquiring device 11 displaying the two-dimensional codes TDC1 to TDC3. Two-dimensional codes TDC1 to TDC3 having a code size CS can be displayed. Therefore, the data providing device 13 can cause the code reading device 14 to read the two-dimensional codes TDC1 to TDC3 displayed on the data acquisition device 11 easily and accurately.

  That is, the data providing apparatus 13 uses the data acquisition apparatus 11 to convert one or more two-dimensional codes TDC1 to TDC3 into a relatively small code resolution Cmm and code, although the code reading performance of the code reading apparatus 14 is relatively low. If it is displayed in the size CS and, as a result, the code reader 14 is not purposely brought close to the data acquisition device 11, the two-dimensional codes TDC1 to TDC3 cannot be read accurately, or even if they are brought close, It is possible to prevent the two-dimensional codes TDC1 to TDC3 from being read accurately and the white and black patterns of the minimum structural unit from being crushed.

  In addition, the data providing device 13 uses the code acquisition device 14 to generate one or more two-dimensional codes TDC1 to TDC3 in the data acquisition device 11, although the code reading performance is relatively high. As a result, it is possible to avoid the code reader 14 from being separated from the data acquisition device 11 and reading the entire two-dimensional codes TDC1 to TDC3.

  According to the above configuration, the data providing device 13 in the data providing and acquiring system 10 receives the display performance information IP from the data acquiring device 11, the reading performance information RP and the reading environment information RM of the code reading device 14, and the device attribute information MA. Is acquired as code reading information CR, and the registration screen acquisition addresses GF1 to GF3 to be encoded are encoded based on the code reading information CR, and the code reading performance and code reading environment of the code reading device 14 and the data acquisition device are encoded. The two-dimensional codes TDC1 to TDC3 having the code resolution Cmm and the code size CS corresponding to the display performance of 11 are generated. As a result, the data providing apparatus 13 gives the data acquisition apparatus 11 a two-dimensional code TDC1 with a code resolution Cmm and a code size CS corresponding to the code reading performance and code reading environment of the code reading apparatus 14 and the display performance of the data acquisition apparatus 11. To TDC3 can be displayed. As a result, the data providing device 13 can easily cause the code reading device 14 to read the two-dimensional codes TDC1 to TDC3 displayed on the data acquisition device 11. Thus, the data providing device 13 can accurately decode the two-dimensional codes TDC1 to TDC3 read by the code reading device 14.

  In addition, when the data providing device 13 cannot decode the two-dimensional code TDC1 of the optimum code version generated by encoding the registration screen acquisition addresses GF1 to GF3 as they are by the application version of the decoding application program in the data reading device 14, The registration screen acquisition addresses GF1 to GF3 are divided, and the divided parts are expressed by two-dimensional codes TDC2 and TDC3 having code versions equal to or lower than the specified code version specified by the application version. Therefore, the data providing apparatus 13 causes the code reading apparatus 14 to accurately decode the two-dimensional codes TDC2 and TDC3 regardless of what application version of the decoding application program is provided as the decoding unit 75 and the connecting unit 76. Can do.

  Further, the data providing device 13 uses the code sizes CS of the two-dimensional codes TDC1 to TDC3 and the codes of the code display areas 45A and 45B whose sizes are limited for displaying the two-dimensional codes TDC1 to TDC3 by the data acquisition device 11. The display area size is determined as the upper limit. Therefore, the data providing apparatus 13 avoids the case where it is impossible to accurately present other function execution information and presentation information 48 when the two-dimensional codes TDC1 to TDC3 are displayed in the function execution screen 40 in the data acquisition apparatus 11. Thus, the two-dimensional codes TDC1 to TDC3 can be accurately read by the code reading device 14 while the entire function execution information and the presentation information 48 are substantially accurately presented.

(2-3) Other Embodiments In the first embodiment described above, every time the data providing device 13 requests acquisition of the two-dimensional codes TDC1 to TDC3 from the data acquiring device 11, Although the case where the dimension codes TDC1 to TDC3 are generated and transmitted to the data acquisition apparatus 11 has been described, the present invention is not limited to this, and the data providing apparatus 13 generates the two-dimensional codes TDC1 to TDC3 in advance to identify the apparatus. The information may be stored in association with the information MID. According to this configuration, when the data providing device 13 requests acquisition of the two-dimensional codes TDC1 to TDC3 from the data acquisition device 11, the processing load is reduced by the amount that the two-dimensional codes TDC1 to TDC3 are not generated. Can do.

  By the way, even if the data providing device 13 does not generate and hold the two-dimensional codes TDC1 to TDC3 in advance, for example, the reading resolution Rmm is detected in advance and stored in association with the device identification information MID, or the code resolution Cmm and The code size CS is detected and stored in association with the device identification information MID, and further, the encoding conditions for the registration screen acquisition addresses GF1 to GF3 to be encoded are set in advance and stored in association with the device identification information MID. You may make it keep. Even in such a configuration, when the data providing apparatus 13 requests the data acquisition apparatus 11 to acquire the two-dimensional codes TDC1 to TDC3, the processing load for generating the two-dimensional codes TDC1 to TDC3 is the first load described above. This can be reduced as compared with the embodiment.

  In the data providing apparatus 13, the encoding unit 28 detects the reading resolution Rmm, determines the code resolution Cmm and the code size CS, and sets the encoding conditions. A detection unit that detects the resolution Rmm, a determination unit that determines the code resolution Cmm and the code size CS, and a setting unit that sets the encoding conditions may be provided. Further, the reading resolution Rmm, the code resolution Cmm, and the code You may make it provide the memory | storage part which memorize | stores size CS and an encoding condition collectively or separately.

  Further, in the first embodiment described above, when the data providing device 13 is requested to acquire the two-dimensional codes TDC1 to TDC3 when displaying the function execution screen 40 from the data acquiring device 11, the data providing device 13 responds accordingly. Although the case where the two-dimensional codes TDC1 to TDC3 are transmitted to the data acquisition device 11 has been described, the present invention is not limited to this. For example, the data providing device 13 may provide 2 to the data acquisition device 11 together with the provision information RE. The dimension codes TDC1 to TDC3 may be provided periodically so as to be transmitted.

  Further, in the above-described first embodiment, the case where the device attribute information MA is provided from the data acquisition device 11 to the data providing device 13 has been described. However, the present invention is not limited to this, and the data providing device 13 is provided. However, list data of the device attribute information MA and the reading performance information RP corresponding to various models of the code reading device 14 is stored in advance, and only the model name of the code reading device 14 is provided from the data acquisition device 11, for example. Thus, the device attribute information MA and the reading performance information RP relating to the code reading device 14 may be detected and acquired from the list data by the model name. In addition, the data providing device 13 holds list data of display performance information IP corresponding to various models of the data acquisition device 11 in advance, and provides the model name from the data acquisition device 11 so that the list is displayed. The display performance information IP may be detected and acquired from the data by the model name.

  Furthermore, in the first embodiment described above, the data providing device 13 requests the acquisition of the two-dimensional codes TDC1 to TDC3 when the data acquisition device 11 starts executing various functions. Although the case where the generated two-dimensional codes TDC1 to TDC3 are generated and transmitted has been described, the present invention is not limited to this, and the data providing apparatus 13 receives 2 when the data acquisition apparatus 11 starts executing various functions. When the acquisition of the dimension codes TDC1 to TDC3 is requested, a display for re-requesting the two-dimensional code (hereinafter, this is re-generated) in response to this request, which is generated in advance so as to image the two-dimensional codes TDC1 to TDC3. A request icon) or any one of the registration screen acquisition addresses GF1 to GF3 that is arbitrarily selected in advance. The re-request icon is transmitted, and the re-request icon is displayed in the code display area 45A in the function execution screen 40 in the data acquisition device 11 as shown in FIG. 80 may be displayed.

  Then, the data providing device 13 requests the acquisition of the two-dimensional codes TDC1 to TDC3 again when the user requests the re-request icon 80 on the function execution screen 40 via the operation unit 31 from the data acquisition device 11. Then, by generating the two-dimensional codes TDC1 to TDC3 and transmitting them to the data acquisition device 11 according to this, for example, as shown in FIG. The acquisition device 11 displays the two-dimensional codes TDC1 to TDC3 at predetermined positions in the function execution screen 40, or displays the two-dimensional codes TDC1 to TDC3 as two-dimensional code presentation screens instead of the function execution screen 40. Anyway. According to such a configuration, the data providing device 13 does not generate any two-dimensional codes TDC1 to TDC3 when the user does not intend to read the two-dimensional codes TDC1 to TDC3 using the code reading device 14. Since the two-dimensional codes TDC1 to TDC3 are generated only when it is desired to read the two-dimensional codes TDC1 to TDC3 using the code reader 14, the two-dimensional codes TDC1 to TDC3 can be read. It is possible to avoid unnecessary generation even though it is not.

  Further, in the above-described first embodiment, the case where the data providing apparatus 13 acquires the code reading information CR from the data acquisition apparatus 11 in advance and stores it is described. Not limited to this, when the data acquisition device 11 holds the code reading information CR and transmits the code acquisition request information to the data providing device 13, when the code reading information CR is requested, the code reading information CR is stored. The code reading information CR may be transmitted together with the code acquisition request information every time transmission is requested or acquisition of the two-dimensional codes TDC1 to TDC3 is requested.

  For example, a case will be described in which the data acquisition apparatus 11 holds the code reading information CR and transmits the code reading information CR in response to the request as a result of transmitting the code acquisition request information to the data providing apparatus 13. In this case, as shown in FIG. 23 in which parts corresponding to those in FIG. 3 are assigned the same reference numerals, the data providing apparatus 100 is configured without the read information storage unit 27. Further, as shown in FIG. 24 in which parts corresponding to those in FIG. 12 are assigned the same reference numerals, the data acquisition device 110 is configured without the identification information storage unit 62.

  Here, the control unit 111 of the data acquisition device 110 urges the user to input reading device information in the initial setting of the data acquisition device 110, for example, and notifies the acquisition unit 112 when the input is accepted. . At this time, the acquisition unit 112 reads the read information input screen data from the screen data storage unit 38 in accordance with the notification from the control unit 111 and sends the read information input screen data to the display control unit 35, thereby causing the display control unit 35 to display the display unit. 36 displays a reading information input screen (not shown) based on the reading information input screen data.

  When the reading device information is input on the reading information input screen by the user via the operation unit 31, the acquiring unit 112 converts the input reading device information into the code reading information in which the display performance information IP is stored in advance. The data is sent to the storage unit 113 and stored. In this way, the control unit 111 stores and holds the display performance information IP and the reading device information as the code reading information CR in the code reading information storage unit 113.

  In the second code display processing procedure shown in FIGS. 25A and 25B in which parts corresponding to those in FIG. 20 realized by such a configuration are given the same reference numerals, the control unit 111 of the data acquisition device 110 is operated by the user. When a function selection command is input via the unit 31, the second code acquisition / display processing procedure RT3 shown in FIG. Then, when starting the second code acquisition / display processing procedure RT3, the control unit 111 of the data acquisition device 110 transmits the code acquisition request information to the data providing device 100 via the communication unit 34 in step SP21, and the next step SP22. Move on.

  At this time, when communication with the data acquisition device 110 is established, the control unit 101 of the data providing device 100 starts the second code generation providing processing procedure RT4 shown in FIG. Then, when starting the second code generation providing process procedure RT4, the control unit 101 of the data providing apparatus 100 receives and takes in the code acquisition request information transmitted from the data acquisition apparatus 110 in step SP31. Then, the control unit 101 notifies the acquisition unit 102 of reception of the code acquisition request information. Thereby, the control unit 101 transmits acquisition request information for requesting acquisition of the code reading information CR by the acquisition unit 102 to the data acquisition device 110 by the communication unit 23, and proceeds to the next step SP32.

  At this time, in step SP22, the control unit 111 of the data acquisition device 110 receives and takes in the acquisition request information transmitted from the data providing device 100 by the communication unit 34. Then, the control unit 111 reads the code reading information CR from the code reading information storage unit 113 in response to receiving the acquisition request information. As a result, the control unit 111 transmits the code reading information CR to the data providing apparatus 100 via the communication unit 34, and subsequently executes the process of step SP2. Then, the control unit 111 proceeds to step SP23 and performs the second code acquisition display process. The procedure RT3 is terminated.

  On the other hand, in step SP32, the control unit 101 of the data providing apparatus 100 receives and takes in the code reading information CR transmitted from the data acquisition apparatus 110 at this time by the communication unit 23. Then, the control unit 101 sends the code reading information CR to the encoding unit 103. As a result, the control unit 101 reads the common information FI1 from the address storage unit 25 by the encoding unit 103 and also reads one piece of individual information VI1 to VI3 corresponding to the carrier name indicated by the code reading information CR. Then, the control unit 101 connects the individual information VI1 to VI3 and the common information FI1 by the encoding unit 103 to generate one registration screen acquisition address GF1 to GF3 to be encoded, and proceeds to the next step SP13. Move.

  As a result, the control unit 101 sequentially executes the processing from step SP13 to step SP15 by the encoding unit 103 as described above, and then proceeds to step SP33 to end the second code generation provision processing procedure RT4. In this way, the data acquisition device 110 and the data provision device 100 end all the second code display processing procedures.

  According to this configuration, the data providing apparatus 100 can simplify the configuration except for the read information storage unit 27. The data acquisition device 110 can also be simplified in configuration except for the identification information storage unit 62. And the data provision apparatus 100 and the data acquisition apparatus 110 can acquire the effect similar to 1st Embodiment mentioned above also by this structure. Incidentally, the data providing apparatus 100 and the data acquisition apparatus 110 may be configured to use the re-request icon 80 described above with reference to FIGS. 21 and 22. The re-request icon 80 may be held in advance by the data providing apparatus 100 and provided to the data acquisition apparatus 110 when the two-dimensional codes TDC1 to TDC3 are generated, or may be stored in advance by the data acquisition apparatus 110. May be.

  Further, in the first embodiment described above, the data providing device 13 causes the code resolution Cmm and the code size CS of the two-dimensional codes TDC1 to TDC3 based on the display performance information IP, the reading performance information RP, and the reading environment information RM. However, the present invention is not limited to this. For example, when the code reading performance of the code reader 14 is low, the code resolution Cmm and the code size CS are increased. If the performance is high, the code resolution Cmm and the code size CS are reduced, and the data providing apparatus 13 uses only the display performance information IP and the reading performance information RP, and only the reading performance information RP and the reading environment information RM. In addition, the codes of the two-dimensional codes TDC1 to TDC3 based only on the reading performance information RP It is also possible to determine the Zodo Cmm and code size CS. Also with this configuration, the code reader 14 can easily read and decode the two-dimensional codes TDC1 to TDC3.

(3) Second Embodiment (3-1) Configuration of Data Providing and Acquiring System According to Second Embodiment FIG. 26, in which parts corresponding to those in FIG. 1 shows a data provision and acquisition system 150 according to a configuration, a configuration of a code generation device that generates two-dimensional codes TDC1 to TDC3, and a stationary data acquisition device 151 as a code display device that displays the two-dimensional codes TDC1 to TDC3; Except for the configuration of the data providing device 152 that does not have the function of generating the dimension codes TDC1 to TDC3, the configuration is the same as that of the data providing and acquiring system 10 according to the first embodiment described above.

  First, the detailed hardware configuration of the functional circuit block of the data providing apparatus 152 will be described with reference to FIG. In the data providing apparatus 152, the control unit 160 performs overall control of the entire apparatus and executes various processes. Thereby, the control part 160 performs the process similar to the control part 20 of the data provision apparatus 13 by 1st Embodiment mentioned above fundamentally. However, when the data acquisition device 151 displays the function execution screen 40, the address acquisition request information for requesting acquisition of the registration screen acquisition addresses GF1 to GF3 is used as a carrier indicating the carrier name of the communication system used by the code reader 14. It is transmitted via the network 12 together with the name information.

  Therefore, when the address acquisition request information is transmitted from the data acquisition device 151 together with the carrier name information via the network 12, the control unit 160 receives and captures the address acquisition request information and the carrier name information by the communication unit 23. Then, in response to the reception of the address acquisition request information and the carrier name information, the control unit 160 notifies the address generation unit 161 of the reception of the address acquisition request information and sends out the carrier name information.

  At this time, the address generation unit 161 reads the common information FI1 from the address storage unit 25. At this time, the address generation unit 161 searches and reads one piece of individual information VI1 to VI3 corresponding to the carrier name indicated by the carrier name information from the address storage unit 25. As a result, the address generation unit 161 connects the individual information VI1 to VI3 read from the address storage unit 25 and the common information FI1 to generate one registration screen acquisition address GF1 to GF3 to be encoded.

  In this way, the address generation unit 161 is displayed on the code reading device 14 (that is, the data acquisition device 151) paired with the data acquisition device 151 that has requested the data providing device 152 to acquire the registration screen acquisition addresses GF1 to GF3 at this time. The registration screen acquisition addresses GF1 to GF3 for identifying the registration screen data of the registration screen that can be displayed by the code reading device 14) that can be used for reading the two-dimensional codes TDC1 to TDC3. Generate as Then, the address generation unit 161 sends one registration screen acquisition address GF1 to GF3 generated in this way to the control unit 160.

  Therefore, the control unit 160 transmits the registration screen acquisition addresses GF1 to GF3 to be encoded to the data acquisition device 151 via the network 12 by the communication unit 23. In this way, unlike the data providing device 13 according to the first embodiment, the control unit 160 does not generate the two-dimensional codes TDC1 to TDC3, but the encoding target registration screen in response to a request from the data acquisition device 151 The acquisition addresses GF1 to GF3 can be provided.

  Next, a detailed hardware configuration of the functional circuit block of the data acquisition device 151 will be described with reference to FIG. In the data acquisition apparatus 151, the control unit 170 controls the entire apparatus according to various commands input via the operation unit 31 and executes various processes. Thereby, the control part 170 performs the process similar to the control part 30 of the data acquisition apparatus 11 by 1st Embodiment mentioned above fundamentally.

  However, the control unit 170 urges the user to input reading device information in the initial setting of the data acquisition device 151, for example, and notifies the acquisition unit 171 when the input is accepted. At this time, the acquisition unit 171 inputs reading device information (that is, device attribute information MA, reading performance information RP, and reading environment information RM) from the screen data storage unit 38, for example, in response to a notification from the control unit 170. The read information input screen data is read out and sent to the display control unit 35. As a result, the acquisition unit 171 causes the display control unit 35 to display a reading information input screen (not shown) based on the reading information input screen data on the display unit 36.

  When the reading device information is input on the reading information input screen by the user via the operation unit 31, the acquisition unit 171 sends the input reading device information to the code reading information storage unit 172 and stores it. Incidentally, the display performance information IP is stored in the code reading information storage unit 172 in advance. Therefore, the control unit 170 can store and hold the display performance information IP and the reading device information as the code reading information CR in the code reading information storage unit 172.

  In this state, when a function selection command is input by the user via the operation unit 31, the control unit 170 reads from the code reading information storage unit 172 in addition to a series of processes for displaying the function execution screen 40 described above. Read the device attribute information MA. Then, the control unit 170 extracts the carrier name from the device attribute information MA, and transmits the carrier name information indicating the carrier name together with the address acquisition request information to the data providing device 152 via the network 12 by the communication unit 34.

  As a result, when one registration screen acquisition address GF1 to GF3 is transmitted from the data providing apparatus 13 via the network 12, the control unit 170 receives and captures the registration screen acquisition addresses GF1 to GF3 by the communication unit 34. . Then, the control unit 170 sends the received registration screen acquisition addresses GF1 to GF3 to the encoding unit 173.

  In this case, when the registration screen acquisition addresses GF1 to GF3 are given from the control unit 170, the encoding unit 173 reads the code reading information CR from the code reading information storage unit 172. The encoding unit 173 encodes and generates the registration screen acquisition addresses GF1 to GF3 to be encoded in the same manner as the encoding unit 28 of the data providing apparatus 13 according to the first embodiment described above. The code resolution Cmm and code size CS of the TDC1 to TDC3 are determined, and the encoding conditions for the registration target screen acquisition addresses GF1 to GF3 to be encoded are set using the determined code resolution Cmm and code size CS.

  As a result, the encoding unit 173 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded in accordance with the encoding condition, so that the code reading performance and the code reading environment of the code reading device 14 and the display performance of the data acquiring device 151 are obtained. One or a plurality of two-dimensional codes TDC1 to TDC3 having a corresponding code resolution Cmm and code size CS are generated. Then, the encoding unit 173 sends the one or more two-dimensional codes TDC1 to TDC3 generated in this way to the control unit 170.

  Therefore, the control unit 170 combines the one or more two-dimensional codes TDC1 to TDC3 given from the encoding unit 173 with the function execution screen data and sends them to the display control unit 35. As a result, the control unit 170 causes the display control unit 35 to display the function execution screen 40 on the display unit 36 in the same manner as described above with reference to FIGS. 13, 15A and 17B to 17A and 17B. And two-dimensional codes TDC1 to TDC3 are displayed in the code display areas 45A and 45B in the function execution screen 40.

  Next, a third code display processing procedure for generating and displaying the two-dimensional codes TDC1 to TDC3 in the data acquisition device 151 and the data providing device 152 will be described using the flowcharts shown in FIGS. 29A and 29B. . That is, when a function selection command is input via the operation unit 31 by the user, the control unit 170 of the data acquisition device 151 starts the first code generation display processing procedure RT5 illustrated in FIG.

  Then, when starting the first code generation / display processing procedure RT5, the control unit 170 of the data acquisition device 151 reads the device attribute information MA from the code reading information storage unit 172 in step SP41, and the carrier name from the device attribute information MA. Take out. Then, the control unit 170 transmits carrier name information indicating the carrier name together with the address acquisition request information to the data providing apparatus 152 through the communication unit 34, and proceeds to the next step SP42.

  At this time, when communication with the data acquisition device 151 is established, the control unit 160 of the data providing device 152 starts the first address provision processing procedure RT6 shown in FIG. Then, when starting the first address provision processing procedure RT6, the control unit 160 of the data providing device 152 receives the address acquisition request information and the carrier name information transmitted from the data acquisition device 151 in step SP51 by the communication unit 23. Capture.

  Then, in response to the reception of the address acquisition request information, the control unit 160 reads the common information FI1 from the address storage unit 25 by the address generation unit 161 and one piece of individual information VI1 to VI corresponding to the carrier name indicated by the carrier name information. Search and read VI3. As a result, the control unit 160 generates one registration screen acquisition address GF1 to GF3 to be encoded by linking one piece of individual information VI1 to VI3 and common information FI1 by using the address generation unit 161, and the next step Move on to SP52.

  In step SP52, the control unit 160 transmits the registration target screen acquisition addresses GF1 to GF3 generated by the address generation unit 161 to the data acquisition device 151 by the communication unit 23, and then proceeds to the next step SP53. 1 address provision processing procedure RT6 is terminated.

  At this time, in step SP42, the control unit 170 of the data acquisition device 151 receives and takes in the registration screen acquisition addresses GF1 to GF3 transmitted from the data providing device 152 by the communication unit 34. Then, the control unit 170 gives the registration screen acquisition addresses GF1 to GF3 to the encoding unit 173, so that the encoding unit 173 reads the code reading information CR from the code reading information storage unit 172, and the next step SP43. Move on.

  In step SP43, the control unit 170 causes the encoding unit 173 to generate the code resolution Cmm of the two-dimensional codes TDC1 to TDC3 generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded based on the code reading information CR. And the code size CS are determined, the encoding conditions for the registration screen acquisition addresses GF1 to GF3 to be encoded are set using the determined code resolution Cmm and code size CS, and the next step SP44 is performed. Move.

  In step SP44, the control unit 170 uses the encoding unit 173 to encode the registration target screen acquisition addresses GF1 to GF3 to be encoded in accordance with the encoding condition, so that the code reading performance and the code of the code reading device 14 to be read are used. Two-dimensional codes TDC1 to TDC3 having a code resolution Cmm and a code size CS corresponding to the reading environment and the display performance of the data acquisition device 151 are generated, and the process proceeds to the next step SP45.

  In step SP45, the control unit 170 sends the two-dimensional codes TDC1 to TDC3 generated by the encoding unit 173 to the display control unit 35. As a result, the control unit 170 causes the display control unit 35 to display the two-dimensional codes TDC1 to TDC3 as a part of the function execution screen 40 on the display unit 36, and then proceeds to the next step SP46 to perform the first code generation display. Processing procedure RT5 is terminated. In this way, the data acquisition device 151 and the data provision device 152 end all the third code display processing procedures.

(3-2) Operation and Effect of Second Embodiment In the above configuration, the data acquisition device 151 of the data provision acquisition system 150 uses the code reading performance when the code reading device 14 reads the two-dimensional codes TDC1 to TDC3. The reading performance information RP indicating the code reading environment, the reading environment information RM indicating the code reading environment, and the device attribute information MA indicating the attribute of the code reading device 14 are input and acquired as reading device information, and the reading device information is acquired. The display performance information IP indicating the display performance when displaying the two-dimensional codes TDC1 to TDC3 is stored in the code reading information storage unit 172 in which the display performance information IP is stored.

  In this way, when the function selection command is input by the user in a state where the reading device information and the display performance information IP are stored in the code reading information storage unit 172 as the code reading information CR, the data acquisition device 151 The carrier name included in the information MA is transmitted as carrier name information to the data providing apparatus 152 together with the address acquisition request information. As a result, the data acquisition device 151 acquires the registration target screen acquisition addresses GF1 to GF3 from the data providing device 152.

  Then, the data acquisition device 151 determines the code resolution Cmm and the code size CS of the two-dimensional codes TDC1 to TDC3 generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded based on the code reading information CR. Using the determined code resolution Cmm and code size CS, the encoding conditions for the encoding target registration screen acquisition addresses GF1 to GF3 are set.

  As a result, the data acquisition device 151 encodes the registration screen acquisition addresses GF1 to GF3 to be encoded in accordance with the encoding conditions, so that the code reading performance and code reading environment of the code reading device 14 and the display performance of the data acquisition device 151 are improved. One or a plurality of two-dimensional codes TDC1 to TDC3 having a corresponding code resolution Cmm and code size CS are generated. Then, the data acquisition device 151 displays the one or more two-dimensional codes TDC1 to TDC3 generated in this way in the code display areas 45A and 45B whose sizes are limited in the function execution screen 40.

  Therefore, the data acquisition device 151 can display the two-dimensional codes TDC1 to TDC3 having the code resolution Cmm and the code size CS corresponding to the code reading performance and the code reading environment of the code reading device 14 and the display performance of the data acquisition device 151. it can. Therefore, the data acquisition device 151 can cause the code reading device 14 to read the two-dimensional codes TDC1 to TDC3 easily and accurately.

  That is, the data acquisition device 151 displays one or more two-dimensional codes TDC1 to TDC3 with a relatively small code resolution Cmm and code size CS, even though the code reading performance of the code reading device 14 is relatively low. As a result, unless the code reader 14 is purposely brought close to the display unit 36, the two-dimensional codes TDC1 to TDC3 cannot be read accurately or even if they are brought close to each other, the two-dimensional codes TDC1 to TDC1 to It is possible to prevent the white and black patterns of the minimum structural unit from being crushed without being able to read the TDC 3 accurately.

  In addition, the data acquisition device 151 uses a code resolution Cmm and a code size CS which are uselessly increased in one or more two-dimensional codes TDC1 to TDC3 on the display unit 36, although the code reading performance of the code reading device 14 is relatively high. As a result, it is possible to avoid the code reading device 14 from being separated from the display unit 36 and reading the entire two-dimensional codes TDC1 to TDC3.

  According to the above configuration, in the data provision acquisition system 150, the data acquisition device 151 acquires the reading performance information RP, the reading environment information RM, and the device attribute information MA of the code reading device 14 as reading device information by a user input, This is stored and held as code reading information CR together with the display performance information IP, and the registration screen acquisition addresses GF1 to GF3 to be encoded are encoded based on the code reading information CR, and the code reading performance and The two-dimensional codes TDC1 to TDC3 having the code resolution Cmm and the code size CS corresponding to the code reading environment and the display performance of the display unit 36 are generated. As a result, the data acquisition device 151 displays the two-dimensional codes TDC1 to TDC3 on the display unit 36 with the code resolution Cmm and the code size CS corresponding to the code reading performance and code reading environment of the code reading device 14 and the display performance of the display unit 36. can do. As a result, the data acquisition device 151 can cause the code reading device 14 to easily read the two-dimensional codes TDC1 to TDC3 displayed on the display unit 36. Thus, the data acquisition device 151 can accurately decode the two-dimensional codes TDC1 to TDC3 read by the code reader 14.

  Further, when the data acquisition device 151 cannot decode the two-dimensional code TDC1 of the optimum code version generated by encoding the registration screen acquisition addresses GF1 to GF3 by the application version of the decoding application program in the data reading device 14, the registration is performed. The screen acquisition addresses GF1 to GF3 are divided, and the divided parts are expressed by two-dimensional codes TDC2 and TDC3 having code versions equal to or lower than the specified code version specified by the application version. Therefore, the data acquisition device 151 causes the code reader 14 to accurately decode the two-dimensional codes TDC2 and TDC3 regardless of what application version of the decoding application program is provided as the decoding unit 75 and the connecting unit 76. Can do.

  Further, the data acquisition device 151 displays the code sizes CS of the two-dimensional codes TDC1 to TDC3 in the code display areas 45A and 45B whose sizes are limited for displaying the two-dimensional codes TDC1 to TDC3 on the display unit 36. The region size is determined as the upper limit. Accordingly, the data acquisition device 151 avoids the possibility that the function execution information and the presentation information 48 cannot be accurately presented when the two-dimensional codes TDC1 to TDC3 are displayed in the function execution screen 40, and the function The two-dimensional codes TDC1 to TDC3 can be accurately read by the code reading device 14 while the entire execution information and the presentation information 48 are substantially accurately presented.

  In addition to this, the data acquisition device 151 acquires the encoding target registration screen acquisition addresses GF1 to GF3 from the data provision device 152 and encodes them to generate the two-dimensional codes TDC1 to TDC3. Therefore, the data acquisition device 151 can simplify the configuration of the data providing device 152 by not causing the data providing device 152 to generate the two-dimensional codes TDC1 to TDC3.

(3-3) Other Embodiments In the second embodiment described above, the data acquisition device 151 generates the two-dimensional codes TDC1 to TDC3 each time a function selection command is input by the user. However, the present invention is not limited to this, and the data acquisition device 151 may generate and store the two-dimensional codes TDC1 to TDC3 in advance. According to such a configuration, in the data acquisition device 151, when the function selection command is input by the user, the processing load can be reduced by the amount that the two-dimensional codes TDC1 to TDC3 are not generated.

  Incidentally, in the data acquisition device 151, even if the two-dimensional codes TDC1 to TDC3 are not generated and held in advance, for example, at the time of initial setting, the reading resolution Rmm is detected in advance and stored, or the code resolution Cmm and the code size are stored. The CS may be detected and stored. Further, in the data acquisition device 151, for example, at the time of initial setting, the registration screen acquisition addresses GF1 to GF3 to be encoded are acquired from the data providing device 152 and stored, and the registration screen acquisition addresses GF1 to GF1 to be encoded are stored. An encoding condition for GF3 may be set and stored. Even in such various configurations, the data acquisition apparatus 151 has a processing load for generating the two-dimensional codes TDC1 to TDC3 when a function selection command is input by the user, as compared with the second embodiment described above. Can also be reduced.

  Incidentally, in the data acquisition device 151, the encoding unit 173 detects the reading resolution Rmm, determines the code resolution Cmm and the code size CS, and sets the encoding condition. A detection unit that detects the resolution Rmm, a determination unit that determines the code resolution Cmm and the code size CS, and a setting unit that sets the encoding conditions may be provided. Further, the reading resolution Rmm, the code resolution Cmm, and the code You may make it provide the memory | storage part which memorize | stores size CS and an encoding condition collectively or separately.

  In the second embodiment described above, the case where the data acquisition device 151 allows the user to input the device attribute information MA has been described. However, the present invention is not limited to this, and the data providing device 152 List data of device attribute information MA and reading performance information RP corresponding to various models of the code reading device 14 is stored in advance, and the data acquisition device 151 inputs the model name of the code reading device 14 by the user, for example. By providing the model name to the data providing apparatus 152, the apparatus attribute information MA and the reading performance information RP related to the code reading apparatus 14 are detected and acquired from the data providing apparatus 152 based on the model name in the list data. Also good. In addition, the data providing apparatus 152 holds list data of display performance information IP corresponding to various models of the data acquisition apparatus 151 in advance, and the data acquisition apparatus 151 provides only the own model name to the data providing apparatus 152. Thus, the display performance information IP may be detected and acquired from the data providing apparatus 152 by the model name in the list data.

  Further, in the above-described second embodiment, the case where the data acquisition device 151 generates the two-dimensional codes TDC1 to TDC3 when a function selection command is input by the user has been described. Not limited to this, when the data acquisition device 151 receives a function selection command from the user, the two-dimensional codes TDC1 to TDC3 are previously stored in the code display area 45A in the function execution screen 40 as described above with reference to FIG. The re-request icon 80 generated in a pattern that makes the image appear, or the re-request icon generated by encoding at least a part of the registration screen acquisition addresses GF1 to GF3 may be displayed.

  Then, the data acquisition device 151 generates the two-dimensional codes TDC1 to TDC3 in response to the selection request of the re-request icon 80 on the function execution screen 40 by the user via the operation unit 31, and for example, as described above with reference to FIG. As described above, the two-dimensional codes TDC1 to TDC3 are displayed at predetermined positions in the function execution screen 40, or the two-dimensional codes TDC1 to TDC3 are displayed as two-dimensional code presentation screens instead of the function execution screen 40. Anyway. According to such a configuration, when the user does not intend to read the two-dimensional codes TDC1 to TDC3 using the code reading device 14, the data acquisition device 151 does not generate the two-dimensional codes TDC1 to TDC3 at all. Since the two-dimensional codes TDC1 to TDC3 are generated only when it is desired to read the two-dimensional codes TDC1 to TDC3 using the code reader 14, the two-dimensional codes TDC1 to TDC3 can be read. It is possible to avoid unnecessary generation even though it is not.

  Further, in the above-described second embodiment, the case where the data acquisition device 151 stores and holds the code reading information CR in advance has been described. However, the present invention is not limited to this, and the data providing device 152 The code reading information CR is held, and when the data acquisition device 151 transmits the address acquisition request information to the data providing device 152, the code reading information CR is also requested and acquired, and registered from the data providing device 152. The code reading information CR may be acquired before or after acquiring the screen acquisition addresses GF1 to GF3.

  For example, a case where the data providing apparatus 152 holds the code reading information CR and the data acquiring apparatus 151 requests acquisition of the code reading information CR when transmitting the address acquisition request information to the data providing apparatus 152 will be described. As shown in FIG. 30 in which parts corresponding to those in FIG. 27 are assigned the same reference numerals, the data providing apparatus 180 is configured by adding an acquisition unit 181 and a read information storage unit 182. Further, as shown in FIG. 31 in which the same reference numerals are given to the corresponding parts to FIG. 28, the data acquisition device 190 is provided with a display information storage unit 191 and an identification information storage unit 192 instead of the code reading information storage unit 172. Constitute.

  Here, the acquisition unit 181 of the data providing device 180 obtains acquisition request information for requesting acquisition of the code reading information CR via the network 12 by the communication unit 23 prior to the start of providing the provision information RE to the data acquisition device 190. The data is transmitted to the data acquisition device 190. As a result, the control unit 193 of the data acquisition device 190 receives and acquires the acquisition request information transmitted from the data providing device 180 by the communication unit 34 and notifies the acquisition unit 194 of the reception of the acquisition request information. In response to the notification from the control unit 193, the acquisition unit 194 reads, for example, read information input screen data stored in advance from the screen data storage unit 38 and sends the read information input screen data to the display control unit 35. As a result, the acquisition unit 194 causes the display control unit 35 to display a reading information input screen (not shown) based on the reading information input screen data on the display unit 36.

  At this time, when the reading device information is input on the reading information input screen by the user via the operation unit 31, the acquisition unit 194 sends the input reading device information to the control unit 193. Further, when the reading device information is given from the acquisition unit 194, the control unit 193 reads the display performance information IP from the display information storage unit 191 in response thereto. As a result, the control unit 193 collectively sets the reading device information input on the reading information input screen and the display performance information IP read from the display information storage unit 191 as the code reading information CR. The data is transmitted to the data providing apparatus 180 via the network 12 by the communication unit 34.

  As a result, when the code reading information CR is transmitted from the data acquisition device 190 via the network 12, the acquisition unit 181 of the data providing device 180 receives and takes in the code reading information CR by the communication unit 23. When acquiring the code reading information CR from the data acquisition device 190, the acquisition unit 181 issues device identification information MID unique to the data acquisition device 190, and reads the device identification information MID and the code reading information CR in association with each other. The information is stored in the read information storage unit 182 as an information table RIT.

  The acquisition unit 181 transmits the device identification information MID issued at this time to the data acquisition device 190 via the network 12 by the communication unit 23. Therefore, the control unit 193 of the data acquisition device 190 receives and takes in the device identification information MID transmitted from the data providing device 180 by the communication unit 34. Then, the control unit 193 sends the device identification information MID to the identification information storage unit 192 for storage.

  In the fourth code display processing procedure shown in FIGS. 32 (A) and 32 (B) in which the same reference numerals are assigned to the corresponding parts in FIG. 29 realized by this state, the control unit 193 of the data acquisition device 190 is operated by the user. When a function selection command is input via the unit 31, the second code generation / display processing procedure RT7 shown in FIG. 32 (A) is started. Then, when starting the second code generation / display processing procedure RT7, the control unit 193 of the data acquisition device 190 reads the device identification information MID from the identification information storage unit 192 in step SP61, and requests the device identification information MID to obtain an address. The information is transmitted to the data providing apparatus 180 by the communication unit 34 together with the information, and the process proceeds to the next step SP62.

  At this time, when communication with the data acquisition device 190 is established, the control unit 183 of the data providing device 180 starts the second address provision processing procedure RT8 shown in FIG. When the control unit 183 of the data providing apparatus 180 starts the second address provision processing procedure RT8, the communication unit 23 receives the address acquisition request information and the apparatus identification information MID transmitted from the data acquisition apparatus 190 in step SP71. The address generation unit 184 is notified of the reception of the address acquisition request information, and the apparatus identification information MID received at this time is sent out. Accordingly, the control unit 183 causes the address generation unit 184 to read the code reading information CR corresponding to the device identification information MID from the reading information storage unit 182 and proceeds to the next step SP72.

  In step SP72, the control unit 183 causes the address generation unit 184 to read the common information FI1 from the address storage unit 25 and one piece of individual information VI1 to VI3 corresponding to the carrier name indicated by the device attribute information MA in the code reading information CR. Search for and read. Thereby, the control unit 183 generates one registration screen acquisition address GF1 to GF3 to be encoded by linking one piece of individual information VI1 to VI3 and the common information FI1 by the address generation unit 184, and the next step Move to SP73.

  In step SP73, the control unit 183 transmits the registration target screen acquisition addresses GF1 to GF3 generated by the address generation unit 184 together with the code reading information CR to the data acquisition device 190 through the communication unit 23, and then performs the next step. Moving to SP74, the second address provision processing procedure RT8 is terminated.

  At this time, in step SP62, the control unit 193 of the data acquisition device 190 receives and captures the code reading information CR and the registration screen acquisition addresses GF1 to GF3 transmitted from the data providing device 180 by the communication unit 34. Then, the control unit 193 gives the code reading information CR and the registration screen acquisition addresses GF1 to GF3 to the encoding unit 195. As a result, the control unit 193 uses the encoding unit 195 to generate the two-dimensional codes TDC1 to TDC3 generated by encoding the registration screen acquisition addresses GF1 to GF3 to be encoded based on the code reading information CR as described above. The code resolution Cmm and the code size CS are determined, and the encoding conditions for the registration screen acquisition addresses GF1 to GF3 to be encoded are set using the determined code resolution Cmm and the code size CS. The process proceeds to step SP44.

  Accordingly, the control unit 193 sequentially executes the processing of step SP44 and step SP45, and then proceeds to the next step SP63, and ends the second code generation display processing procedure RT7. In this way, the data acquisition device 190 and the data provision device 180 end all the fourth code display processing procedures.

  In this case, the data providing apparatus 180 and the data acquisition apparatus 190 can obtain the same effects as those of the second embodiment described above even with this configuration. Incidentally, the data providing device 180 and the data acquiring device 190 can be configured to use the re-request icon 80 described above with reference to FIGS. 21 and 22. The re-request icon 80 may be held in advance by the data acquisition device 190 or may be held in advance by the data providing device 180 and provided to the data acquisition device 190 when the two-dimensional codes TDC1 to TDC3 are generated. May be. For example, the data acquisition device 190 may acquire the registration screen acquisition addresses GF1 to GF3 to be encoded from the data providing device 180 and store them in the initial setting.

  Furthermore, in the second embodiment described above, the data acquisition device 151 causes the code resolution Cmm and code size CS of the two-dimensional codes TDC1 to TDC3 based on the display performance information IP, the reading performance information RP, and the reading environment information RM. However, the present invention is not limited to this. For example, when the code reading performance of the code reader 14 is low, the code resolution Cmm and the code size CS are increased. If the performance is high, the code resolution Cmm and the code size CS are reduced, and the data acquisition device 151 uses only the display performance information IP and the reading performance information RP, and only the reading performance information RP and the reading environment information RM. In addition, based on the reading performance information RP alone, the two-dimensional codes TDC1 to TDC3 are copied. It may be determined the de resolution Cmm and code size CS. Also with this configuration, the code reader 14 can easily read and decode the two-dimensional codes TDC1 to TDC3.

(4) Third Embodiment Next, a data provision acquisition system 200 according to the third embodiment will be described with reference to FIG. In such a data provision acquisition system 200, for example, a data acquisition device 201 having an audio component configuration can communicate with a data provision device 202 having a server configuration via a network 12. In the data provision acquisition system 200, for example, a code reading device 203 having a cellular phone configuration can also communicate with the data provision device 202 via the network 12.

  A hardware circuit configuration of the hardware circuit block of the data providing apparatus 202 will be described with reference to FIG. In the data providing apparatus 202, a central processing unit (CPU) 211 receives various programs such as basic programs and application programs stored in advance in a ROM (Read Only Memory) 212 or a hard disk drive 213 via a bus 214. Read out to RAM (Random Access Memory) 215. The central processing unit 211 controls the whole according to various programs developed on the RAM 215 and executes various processes.

  As a result, the central processing unit 211 stores a large number of music data for purchase and a corresponding large number of music-related information in the hard disk drive 213. The central processing unit 211 also stores various screen data such as music introduction screen data and music purchase screen data in association with each other together with a network address from which the hard disk drive 213 can acquire these.

  Then, when screen data is requested from the data acquisition device 201, the central processing unit 211 reads music introduction screen data and music purchase screen data from the hard disk drive 213 accordingly. As a result, the central processing unit 211 transmits the read music introduction screen data and music purchase screen data to the data acquisition device 201 via the network 12 via the communication processing unit 216 and the network interface 217 sequentially.

  Further, the central processing unit 211 transmits music purchase screen data to the data acquisition device 201. As a result, when music purchase request information is transmitted from the data acquisition device 201 via the network 12, the music purchase request information Are sequentially received via the network interface 217 and the communication processing unit 216. Then, the central processing unit 211 reads the corresponding music data and music related information from the hard disk drive 213 in response to the reception of the music purchase request information.

  As a result, the central processing unit 211 transmits the music data and the music related information to the data acquisition apparatus 201 via the network 12 via the communication processing unit 216 and the network interface 217 sequentially. At this time, the central processing unit 211 can make the user purchase the music data by executing a billing process for the user according to the music data distributed to the data acquisition device 201.

  Further, the central processing unit 211 can store a mail magazine that is periodically issued to the hard disk drive 213. Then, the central processing unit 211 reads the mail magazine periodically issued from the hard disk drive 213 to the code reader 203 of the user registered as a user for the mail magazine subscription, and sequentially executes the communication processing unit 216 and the network interface 217. Via the network 12.

  In the data providing apparatus 202, as described above, the central processing unit 211 basically executes various processes according to various programs stored in the ROM 212 or the hard disk drive 213 and controls each hardware. Therefore, in the data providing apparatus 202, various programs to be stored in the ROM 212 or the hard disk drive 213 according to the function of the data providing apparatus 13 having the hardware configuration by the functional circuit block described above with reference to FIG. By appropriately selecting a code generation program for executing the provision processing procedure RT2, the central processing unit 211 can function in the same manner as the control unit 20, the acquisition unit 26, and the encoding unit 28 described above. In the data providing apparatus 202, the hard disk drive 213 can function in the same manner as the music data storage unit 21, the screen data storage unit 22, the provision information storage unit 24, the address storage unit 25, and the read information storage unit 27 described above. . Further, in the data providing apparatus 202, the communication processing unit 216 and the network interface 217 can function in the same manner as the communication unit 23 described above.

  On the other hand, in the data providing apparatus 202, various programs to be stored in the ROM 212 or the hard disk drive 213 according to the function of the data providing apparatus 100 having the hardware configuration by the functional circuit block described above with reference to FIG. By appropriately selecting a code generation program for executing the code generation provision processing procedure RT4, the central processing unit 211 can function in the same manner as the control unit 101, the acquisition unit 102, and the encoding unit 103 described above. . In the data providing apparatus 202, the hard disk drive 213 can function in the same manner as the music data storage unit 21, the screen data storage unit 22, the provision information storage unit 24, and the address storage unit 25 described above. Further, in the data providing apparatus 202, the communication processing unit 216 and the network interface 217 can function in the same manner as the communication unit 23 described above.

  In addition to this, the data providing apparatus 202 stores various programs to be stored in the ROM 212 or the hard disk drive 213 according to the function of the data providing apparatus 152 having a hardware configuration based on the functional circuit block described above with reference to FIG. The central processing unit 211 can be made to function in the same manner as the control unit 160 and the address generation unit 161 described above by appropriately selecting a program for executing the address provision processing procedure RT6. In the data providing apparatus 202, the hard disk drive 213 can function in the same manner as the music data storage unit 21, the screen data storage unit 22, the provision information storage unit 24, and the address storage unit 25 described above. Further, in the data providing apparatus 202, the communication processing unit 216 and the network interface 217 can function in the same manner as the communication unit 23 described above.

  Furthermore, the data providing apparatus 202 provides the above-described second address for various programs stored in the ROM 212 or the hard disk drive 213 according to the function of the data providing apparatus 180 having a hardware configuration based on the functional circuit blocks described above with reference to FIG. By appropriately selecting the program for executing the processing procedure RT8, the central processing unit 211 can be caused to function in the same manner as the control unit 183, the acquisition unit 181 and the address generation unit 184 described above. In the data providing apparatus 202, the hard disk drive 213 can function in the same manner as the music data storage unit 21, the screen data storage unit 22, the provided information storage unit 24, the address storage unit 25, and the read information storage unit 182 described above. . Further, in the data providing apparatus 202, the communication processing unit 216 and the network interface 217 can function in the same manner as the communication unit 23 described above.

  Accordingly, the data providing apparatus 202 appropriately selects various programs to be stored in the ROM 212 or the hard disk drive 213 according to the functions of the data providing apparatuses 13, 100, 152, and 180. The first and second code generation providing processing procedures RT2 and RT4 and the first and second address providing processing procedures RT6 and RT8 described above can be executed in the same manner as 180, and thus the first and second described above. The same effects as those of the data providing devices 13, 100, 152, and 180 according to the embodiment can be obtained.

  As for the data providing apparatus 202, a code generation program may be stored in advance in the ROM 212 or the hard disk drive 213, or a program storage medium in which the code generation program is stored may be installed. As a program storage medium for installing the code generation program in the data providing apparatus 202 and making it executable, only a package medium such as a flexible disk, a CD-ROM (Compact Disc-Read Only Memory), a DVD, or the like can be used. Instead, it may be realized by a semiconductor memory, a magnetic disk, or the like in which various programs are stored temporarily or permanently. In addition, as a means for storing the code generation program in these program storage media, wired and wireless communication media such as a local area network, the Internet, and digital satellite broadcasting may be used, and via various communication interfaces such as a router and a modem. May be stored.

  Next, a hardware circuit configuration of the hardware circuit block of the data acquisition device 201 will be described with reference to FIG. When the operation input unit 220 including various operation keys provided on the housing surface of the data acquisition device 201 or a remote controller (not shown) is operated by the user, the data acquisition device 201 is operated. This is recognized, and an operation input signal corresponding to the operation is sent to the input processing unit 221. The input processing unit 221 performs predetermined processing on the supplied operation input signal, thereby converting the operation input signal into an operation command and sending the operation command to the central processing unit 223 via the bus 222.

  The central processing unit 223 reads various programs such as basic programs and application programs stored in advance in the ROM 224 or the hard disk drive 225 into the RAM 226 via the bus 222. The central processing unit 223 controls the whole according to various programs developed on the RAM 226, and executes predetermined arithmetic processing and various processing according to operation commands given from the input processing unit 221.

  As a result, the central processing unit 223 can connect to the network 12 via the communication processing unit 227 and the network interface 228 in order, and access the data providing apparatus 202 on the network 12. When the user inputs an operation input signal for requesting music introduction screen data or music purchase screen data via the operation input unit 220, the central processing unit 223 accesses the data providing apparatus 202 in response to the input. Request music introduction screen data and music purchase screen data.

  As a result, when the music introduction screen data and the music purchase screen data are transmitted from the data providing apparatus 202 via the network 12, the central processing unit 223 transmits the music introduction screen data and the music purchase screen data to the network interface 228 and the communication. The processing unit 227 receives and takes in. Then, the central processing unit 223 sends the music introduction screen data and the music purchase screen data to the display processing unit 229, so that the music introduction screen based on the music introduction screen data and the music purchase screen based on the music purchase screen data are displayed on the display 230. indicate.

  When the user designates desired music data on the music purchase screen via the operation input unit 220 in a state where the music purchase screen is displayed on the display 230, the central processing unit 223 responds to the music purchase request information. Are transmitted to the data providing apparatus 202 via the network 12 via the communication processing unit 227 and the network interface 228 sequentially. Thus, when the music data and the music related information are transmitted from the data providing apparatus 202 via the network 12, the central processing unit 223 receives the music data and the music related information by the network interface 228 and the communication processing unit 227. take in. The central processing unit 223 sends the music data and music related information to the hard disk drive 225 and stores them in the hard disk. In this way, the central processing unit 223 can cause the user to purchase music data provided by the data providing apparatus 202.

  In addition, when an operation input signal for recording music data recorded on a medium such as a CD is input by the user via the operation input unit 220, the central processing unit 223 receives music data from the medium by the media drive 231. At the same time as reading, the read music data is sent to the data processing circuit 232. The data processing circuit 232 compresses and encodes the music data given from the media drive 231, sends it to the hard disk drive 225, and stores it in the hard disk.

  The central processing unit 223 responds when the music data in the hard disk drive 225 is specified by the user via the operation input unit 220 and an operation input signal for requesting reproduction of the specified music data is input. The designated music data is read from the hard disk drive 225 and sent to the data processing circuit 232. At this time, the data processing circuit 232 performs reproduction processing such as decoding processing, digital-analog conversion processing, and amplification processing on the music data, and sends the obtained music signal to the speaker 233. In this way, the central processing unit 223 can output music based on the music signal from the speaker 233 and allow the user to listen to it.

  The central processing unit 223 further reads out music data from the media by the media drive 231 in response to the input of an operation input signal for requesting playback of the media via the operation input unit 220 by the user, and the data processing circuit 232. To send. At this time, the data processing circuit 232 performs reproduction processing such as digital-analog conversion processing and amplification processing on the music data, and sends the obtained music signal to the speaker 233. In this way, the central processing unit 223 can output music based on the music signal from the speaker 233 and allow the user to listen to it.

  The central processing unit 223 generates screen data according to the execution results of various programs (for example, recording and playback of music data), and sends the generated screen data to the display 230 via the display processing unit 229. To do. As a result, the central processing unit 223 displays a screen corresponding to the execution result of various programs on the display 230. In this way, the central processing unit 223 can cause the user to visually recognize various screens related to recording and reproduction of music data via the display 230.

  By the way, in the data acquisition device 201, as described above, the central processing unit 223 basically executes various processes according to various programs stored in the ROM 224 or the hard disk drive 225 and controls each hardware. Therefore, in the data acquisition device 201, various programs to be stored in the ROM 224 or the hard disk drive 225 according to the function of the data acquisition device 11 having the hardware configuration by the functional circuit block described above with reference to FIG. The central processing unit 223 can be caused to function in the same manner as the control unit 30 and the acquisition unit 61 described above by appropriately selecting a program for executing the display processing procedure RT1.

  In the data acquisition device 201, the operation input unit 220 and the input processing unit 221 can function in the same manner as the operation unit 31 described above, and the hard disk drive 225 is replaced by the data storage unit 33 and the provided information storage unit 37 described above. The screen data storage unit 38, the display information storage unit 60, and the identification information storage unit 62 can function. Furthermore, in the data acquisition device 201, the communication processing unit 227 and the network interface 228 can function in the same manner as the communication unit 34 described above, the display processing unit 229 functions in the same manner as the display control unit 35 described above, and The display 230 can function in the same manner as the display unit 36 described above. Furthermore, in the data acquisition device 201, the media drive 231, the data processing circuit 232, and the speaker 233 can function in the same manner as the playback unit 32 described above.

  On the other hand, in the data acquisition device 201, various programs to be stored in the ROM 224 or the hard disk drive 225 according to the function of the data acquisition device 110 having the hardware configuration by the functional circuit block described above with reference to FIG. By appropriately selecting a program for executing the code acquisition / display processing procedure RT3, the central processing unit 223 can function in the same manner as the control unit 111 and the acquisition unit 112 described above. In the data acquisition device 201, the operation input unit 220 and the input processing unit 221 can function in the same manner as the operation unit 31 described above, and the hard disk drive 225 is replaced by the data storage unit 33 and the provided information storage unit 37 described above. The screen data storage unit 38 and the code reading information storage unit 113 can function in the same manner.

  Furthermore, in the data acquisition device 201, the communication processing unit 227 and the network interface 228 can function in the same manner as the communication unit 34 described above, and the display processing unit 229 functions in the same manner as the display control unit 35 described above, and The display 230 can function in the same manner as the display unit 36 described above. Furthermore, in the data acquisition device 201, the media drive 231, the data processing circuit 232, and the speaker 233 can function in the same manner as the playback unit 32 described above.

  In addition to this, the data acquisition device 201 stores various programs to be stored in the ROM 224 or the hard disk drive 225 in accordance with the function of the data acquisition device 151 having a hardware configuration based on the functional circuit block described above with reference to FIG. By appropriately selecting the code generation program for executing the code generation display processing procedure RT5, the central processing unit 223 can function in the same manner as the control unit 170, the acquisition unit 171 and the encoding unit 173 described above. . In the data acquisition device 201, the operation input unit 220 and the input processing unit 221 can function in the same manner as the operation unit 31 described above, and the hard disk drive 225 is replaced by the data storage unit 33 and the provided information storage unit 37 described above. The screen data storage unit 38 and the code reading information storage unit 172 can function in the same manner.

  Furthermore, in the data acquisition device 201, the communication processing unit 227 and the network interface 228 can function in the same manner as the communication unit 34 described above, the display processing unit 229 functions in the same manner as the display control unit 35 described above, and The display 230 can function in the same manner as the display unit 36 described above. Furthermore, in the data acquisition device 201, the media drive 231, the data processing circuit 232, and the speaker 233 can function in the same manner as the playback unit 32 described above.

  Furthermore, in the data acquisition device 201, various programs to be stored in the ROM 224 or the hard disk drive 225 according to the function of the data acquisition device 190 having the hardware configuration by the functional circuit block described above with reference to FIG. By appropriately selecting a code generation program for executing the display processing procedure RT7, the central processing unit 223 can function in the same manner as the control unit 193, the acquisition unit 194, and the encoding unit 195 described above. In the data acquisition device 201, the operation input unit 220 and the input processing unit 221 can function in the same manner as the operation unit 31 described above, and the hard disk drive 225 is replaced by the data storage unit 33 and the provided information storage unit 37 described above. The screen data storage unit 38, the display information storage unit 191, and the identification information storage unit 192 can function.

  Furthermore, in the data acquisition device 201, the communication processing unit 227 and the network interface 228 can function in the same manner as the communication unit 34 described above, the display processing unit 229 functions in the same manner as the display control unit 35 described above, and The display 230 can function in the same manner as the display unit 36 described above. Furthermore, in the data acquisition device 201, the media drive 231, the data processing circuit 232, and the speaker 233 can function in the same manner as the playback unit 32 described above.

  Therefore, the data acquisition device 201 appropriately selects various programs to be stored in the ROM 224 or the hard disk drive 225 according to the functions of the data acquisition devices 11, 110, 151, and 190, so that the data acquisition devices 11, 110, 151, and The first and second code acquisition / display processing procedures RT1 and RT3 and the first and second code generation / display processing procedures RT5 and RT7 described above can be executed in the same manner as in 190. Thus, the first and second code acquisition / display processing procedures described above are executed. The same effects as those of the data acquisition devices 11, 110, 151 and 190 according to the embodiment can be obtained.

  For the data acquisition device 201, a code generation program may be stored in advance in the ROM 224 or the hard disk drive 225, or a program storage medium in which the code generation program is stored may be installed. As a program storage medium for installing the code generation program in the data acquisition device 201 and making it executable, not only package media such as a flexible disk, a CD-ROM, and a DVD but also various programs are temporarily or It may be realized by a permanently stored semiconductor memory or magnetic disk. In addition, as a means for storing the code generation program in these program storage media, wired and wireless communication media such as a local area network, the Internet, and digital satellite broadcasting may be used, and via various communication interfaces such as a router and a modem. May be stored.

  Next, the hardware circuit configuration of the code reading device 203 by the hardware circuit block will be described with reference to FIG. When the operation input unit 240 including various operation keys provided on the surface of the casing of the code reading device 203 is operated by the user, the code reading device 203 recognizes the operation input unit 240 and operates the operation input unit 240. An operation input signal corresponding to the above is sent to the input processing unit 241. The input processing unit 241 performs predetermined processing on the supplied operation input signal, thereby converting the operation input signal into an operation command and sending the operation command to the central processing unit 243 via the bus 242.

  The central processing unit 243 reads various programs such as basic programs and application programs stored in advance in the ROM 244 into the RAM 245 via the bus 242. The central processing unit 243 controls the whole in accordance with various programs developed on the RAM 245, and executes predetermined arithmetic processing and various processing in accordance with operation commands given from the input processing unit 241.

  Thus, the central processing unit 243 converts the transmission voice signal obtained by collecting the user's voice with the microphone 246 into voice data by the voice codec 247 in the call mode. The central processing unit 243 subjects the audio data obtained by the audio codec 247 to spread spectrum processing by the modulation / demodulation circuit unit 248, and then sequentially performs digital / analog conversion processing and frequency conversion processing by the transmission / reception circuit unit 249. A transmission signal for transmission voice is transmitted from the antenna 250 to a base station (not shown) of the public telephone line network.

  At this time, the central processing unit 243 amplifies the received signal for the received voice received by the antenna 250 by the transmission / reception circuit unit 249, sequentially performs frequency conversion processing and analog-digital conversion processing, and then performs spectrum despreading processing by the modulation / demodulation circuit unit 248 The obtained audio data is sent to the audio codec 247. Then, the central processing unit 243 converts the voice data into a received voice signal by the voice codec 247 and sends it to the speaker 251, thus releasing the other party's voice based on the received voice signal from the speaker 251. In this way, the central processing unit 24 establishes a voice call between the user and the other party.

  In the data communication mode, the central processing unit 243 performs spread spectrum processing by the modulation / demodulation circuit unit 248 on screen request data requesting screen data such as a simple homepage, and then performs digital / analog conversion processing and transmission / reception by the transmission / reception circuit unit 249. Frequency conversion processing is sequentially performed, and the obtained transmission signal is transmitted from the antenna 250 to a server (not shown) on the network 12 via the base station.

  As a result, when the central processing unit 243 receives the reception signal of the screen data transmitted from the server via the base station by the antenna 250, the central processing unit 243 amplifies the reception signal by the transmission / reception circuit unit 249 and performs frequency conversion processing and analog-digital conversion processing. Are sequentially performed, the spectrum despreading process is performed by the modem circuit unit 248, and the obtained screen data is sent to the display processing unit 252. Thereby, the central processing unit 243 can display and display a screen such as a simple homepage based on the screen data on the display 253 by the display processing unit 252.

  Further, in the data communication mode, when the music data to be purchased is specified on the screen displayed on the display 253, for example, the central processing unit 243 uses the modem circuit unit 248 for the distribution request data for requesting distribution of the music data. After performing the spread spectrum processing, the transmission / reception circuit unit 249 sequentially performs digital / analog conversion processing and frequency conversion processing, and transmits the obtained transmission signal from the antenna 250 to the server on the network 12 via the base station.

  As a result, when the central processing unit 243 receives the music data reception signal transmitted from the server via the base station by the antenna 250, the central processing unit 243 amplifies the reception signal by the transmission / reception circuit unit 249 to perform frequency conversion processing and analog-digital conversion processing. Are sequentially performed, and then the modulation / demodulation circuit unit 248 performs spectrum despreading processing to obtain music data. The central processing unit 243 then sends the music data to the medium 255 such as a detachable semiconductor memory via the media interface 254 for storage.

  As a result, the central processing unit 243 thereafter reads out music data from the medium 250 via the media interface 254 and sends it to the audio codec 247 when a reproduction command is input by the user via the operation input unit 240. The central processing unit 243 then converts the music data into a music signal by the audio codec 247 and sends it to the speaker 251 (or headphones (not shown)), thus emitting music based on the music signal from the speaker 251 (or headphones). Can be heard by the user.

  Furthermore, when a shooting command or a shooting command is input by the user via the operation input unit 240, the central processing unit 243 takes a photograph of a subject or a movie by the camera unit 256, and obtains photographic image data obtained as a result. And moving image data are captured via the camera interface 257. The central processing unit 243 then sends the photographic image data and moving image data to the media 255 via the media interface 254 for storage.

  As a result, the central processing unit 243 thereafter reads out photographic image data and moving image data from the medium 250 via the media interface 254 when a display command is input by the user via the operation input unit 240, and displays the display processing unit. Send to 252. Thereby, the central processing unit 243 can display and display a photographic image based on the photographic image data or a moving image based on the moving image data on the display 253 by the display processing unit 252.

  By the way, in the code reader 203, as described above, the central processing unit 243 basically executes various processes according to various programs stored in the ROM 244 and controls each hardware. For this reason, the code reader 203 appropriately selects various programs to be stored in the ROM 244, such as a decryption application program, according to the function of the hardware code reader 14 by the functional circuit block described above with reference to FIG. The central processing unit 243 can function in the same manner as the control unit 70, the decoding unit 75, and the connection unit 76 described above.

  In the code reading device 203, the operation input unit 240 and the input processing unit 241 can function in the same manner as the operation unit 71 described above, and the modulation / demodulation circuit unit 248, the transmission / reception circuit unit 249, and the antenna 250 are connected to the communication unit described above. It can function in the same manner as the unit 77. Further, in the code reading device 203, the display processing unit 252 can function similarly to the display control unit 73 described above, and the display 253 can function similarly to the display unit 74 described above. Further, in the code reading device 203, the camera interface 257 and the camera unit 256 can function in the same manner as the reading unit 72 described above.

  For the code reading device 203, a decryption application program may be stored in advance in the ROM 244, or a program storage medium in which the decryption application program is stored may be installed. As a program storage medium for installing the decryption application program in the code reading device 203 and making it executable, not only package media such as a flexible disk, CD-ROM, and DVD, but also various programs are temporarily or It may be realized by a permanently stored semiconductor memory, magnetic disk, or the like. Further, as means for storing the decoding program in these program storage media, wired and wireless communication media such as a local area network, the Internet, and digital satellite broadcasting may be used, and via various communication interfaces such as routers and modems. You may make it store.

(5) Other Embodiments In the first to third embodiments described above, the two-dimensional code TDC1 generated by encoding the registration screen acquisition addresses GF1 to GF3 as the two-dimensional code used in the present invention. However, the present invention is not limited to this, and other two-dimensional codes generated by encoding screen acquisition addresses for acquiring various screen data and advertisement information are also described. The present invention can be widely applied to two-dimensional codes generated by encoding various other information such as a two-dimensional code generated by encoding.

  In the first to third embodiments described above, the case where the two-dimensional codes TDC1 to TDC3 are displayed in the code display areas 45A and 45B in the data acquisition devices 11, 110, 151, and 190 has been described. However, the present invention is not limited to this, and a two-dimensional code is displayed in various other display areas such as a predetermined display area in a television broadcast program guide screen in a television receiver. May be.

  Furthermore, in the first to third embodiments described above, the case where QR code (registered trademark) is applied as a two-dimensional code has been described. However, the present invention is not limited to this, and DATA MATRIX (registered trademark). ) And Maxi Code (registered trademark) and various two-dimensional codes such as a stack type two-dimensional code such as PDF417 (registered trademark) can be applied.

  Furthermore, in the first to third embodiments described above, the code generation device according to the present invention is the code generation device 1 described above with reference to FIGS. 1 to 36, the data providing devices 13 and 100, and the data acquisition devices 151 and 190. However, the present invention is not limited to this. However, the present invention is not limited to this. Information processing devices such as personal computers, mobile phones, PDAs (Personal Digital Assistance), game devices, car navigation devices, and hard disk recorders are installed. The present invention can be widely applied to code generating apparatuses having various configurations such as a recording / reproducing apparatus of a type.

  The present invention can be used for a code generation device such as a server, a music playback device, and a personal computer.

It is a block diagram which shows the outline | summary of the code generation apparatus by this invention. It is a block diagram which shows the structure of the data provision acquisition system by 1st Embodiment. It is a block diagram which shows the hardware circuit structure by the functional circuit block of a data provision apparatus. It is a basic diagram which shows the structure of provision information. It is a basic diagram which shows the structure of a detailed screen search table. It is a basic diagram which shows the structure of a registration screen acquisition address. It is a basic diagram which shows the structure of a reading information table. It is an approximate line figure used for explanation of generation of a registration screen acquisition address. It is an approximate line figure used for explanation of division of a registration screen acquisition address. It is a basic diagram which shows the structure of a reading resolution detection table. It is a basic diagram with which it uses for description of the production | generation of a two-dimensional code. It is a block diagram which shows the hardware circuit structure by the functional circuit block of a data acquisition apparatus. It is a basic diagram which shows the structure (1) of a function execution screen. It is a basic diagram which shows the structure of a detailed screen. It is a basic diagram with which it uses for description of the display (1) of a two-dimensional code. It is a basic diagram which shows the structure (2) of a function execution screen. It is a basic diagram with which it uses for description of the display (2) of a two-dimensional code. It is a block diagram which shows the hardware circuit structure by the functional circuit block of a code reader. It is an approximate line figure used for explanation of generation of a registration screen acquisition address. It is a flowchart which shows a 1st code display process procedure. It is a basic diagram which shows the structure (1) of the function execution screen by other embodiment. It is a basic diagram which shows the structure (2) of the function execution screen by other embodiment. It is a block diagram which shows the hardware circuit structure by the functional circuit block of the data provision apparatus by other embodiment. It is a block diagram which shows the hardware circuit structure by the functional circuit block of the data acquisition apparatus by other embodiment. It is a flowchart which shows a 2nd code display processing procedure. It is a block diagram which shows the structure of the data provision acquisition system by 2nd Embodiment. It is a block diagram which shows the hardware circuit structure by the functional circuit block of a data provision apparatus. It is a block diagram which shows the hardware circuit structure by the functional circuit block of a data acquisition apparatus. It is a flowchart which shows the 3rd code display processing procedure. It is a block diagram which shows the hardware circuit structure by the functional circuit block of the data provision apparatus by other embodiment. It is a block diagram which shows the hardware circuit structure by the functional circuit block of the data acquisition apparatus by other embodiment. It is a flowchart which shows a 4th code display processing procedure. It is a basic diagram which shows the structure of the data provision acquisition system by 3rd Embodiment. It is a block diagram which shows the hardware circuit structure by the hardware circuit block of a data provision apparatus. It is a block diagram which shows the hardware circuit structure by the hardware circuit block of a data acquisition apparatus. It is a block diagram which shows the hardware circuit structure by the hardware circuit block of a code reader.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Code generator 2, 26, 61, 102, 112, 171, 181, 194 ... Acquiring unit 3, 28, 103, 173, 195 ... Encoding unit 10, 150, 200 ... Data Provision acquisition system 11, 110, 151, 190, 201... Data acquisition device 13, 100, 152, 180, 202... Data provision device 14, 203. 27, 182... Reading information storage unit, 35... Display control unit, 36... Display unit, 45A, 45B .. code display area, 72... Reading unit, 75. 80 ... Re-request icon, 113, 172 ... Code reading information storage unit, 161, 184 ... Address generation unit, 211, 223 ... Central processing unit, 229 ... Display processing unit, 230 ... Display 256, Camera unit, 257 Camera interface, CP Number of light-receiving surface pixels, CR Code reading information, GF1, GF2, GF3 Registered screen acquisition address, IP Display performance information, MA ... device attribute information, RL ... reading distance, RM ... reading environment information, Rmm ... reading resolution, RP ... reading performance information, RT ... reading resolution detection table, TDC1, TDC2, TDC3 ... two-dimensional code, RT1... First code acquisition and display processing procedure, RT2... First code generation and provision processing procedure, RT3... Second code acquisition and display processing procedure, RT4. ... First code generation display processing procedure, RT6... First address provision processing procedure, RT7... Second code generation display processing procedure, RT8. Provision process.

Claims (5)

In a code generator for generating a two-dimensional code,
An acquisition unit for acquiring reading performance information indicating a reading performance of reading a two-dimensional code of a code reading device that reads a two-dimensional code generated by encoding predetermined information;
An encoding unit that encodes the predetermined information based on the reading performance information and generates the two-dimensional code having a resolution and a size corresponding to the reading performance of the code reader; Code generator. The acquisition unit
Obtaining reading environment information indicating a reading environment when the code reader reads the two-dimensional code;
The encoding unit is
Encoding the predetermined information based on the reading performance information and the reading environment information, and generating the two-dimensional code having the resolution and size according to the reading performance and the reading environment of the code reader. The code generation device according to claim 1, wherein: The acquisition unit
Obtaining display performance information indicating the display performance of displaying the two-dimensional code of the code display device for displaying the two-dimensional code;
The encoding unit is
The predetermined information is encoded based on the reading performance information and the display performance information, and the two-dimensional code having the resolution and size according to the reading performance of the code reading device and the display performance of the code display device. The code generation device according to claim 1, wherein: A display control unit for displaying an indicator corresponding to the two-dimensional code on the display unit and displaying the two-dimensional code generated by the encoding unit on the display unit in response to an external request; The code generation device according to claim 1. Against the computer,
An acquisition step of acquiring reading performance information indicating the code reading performance of reading the two-dimensional code of a code reading device that reads the two-dimensional code generated by encoding the predetermined information;
A code generation for encoding the predetermined information based on the reading performance information and generating the two-dimensional code having a resolution and a size corresponding to the code reading performance of the code reading device. program.

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