Abstract:
A server apparatus includes a processor. The processor is configured to perform: calculation target data receiving processing, group ID receiving processing, data registering processing and integrated calculation result transmitting processing. The calculation target data receiving processing receives calculation target data which is to be output from an information display device. The group ID receiving processing receives a group ID. The data registering processing registers the calculation target data received in the calculation target data receiving processing in association with the group ID received in the group ID receiving processing. The integrated calculation result transmitting processing integrates each calculation target data registered in association with the group ID in the data registering processing for each group ID and transmits a calculating result based on the integrated data.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    The present application claims the priority of Japanese Patent Application Nos. 2014-191868 filed on Sep. 19, 2014, 2014-191879 filed on Sep. 19, 2014 and 2014-239383 filed on Nov. 26, 2014, the contents of which being here incorporated for reference. 
       FIELD OF THE INVENTION 
       [0002]    The disclosure relates to a server apparatus, a data integration method and an electronic device. 
       DESCRIPTION OF THE RELATED ART 
       [0003]    In the related art, there is an information display device (which is referred to as a scientific calculator) configured to learn calculation processes of a variety of mathematical function formulas. 
         [0004]    Regarding a using aspect of the information display device, JP-B-4720607 discloses that during a school class of displaying and analyzing a graph of a mathematical function formula, for example, students and a teacher use the information display devices, a teacher&#39;s device receives calculation target data such as graph data, which is transmitted from students&#39; devices, integrates the data and enlarges, projects and displays integrated calculated data of the integration result with an overhead projector (OHP). 
         [0005]    Also, recently, a calculation server that is accessed from a communication device such as a smart phone and is configured to provide a high-functional calculation service on the Internet has been used. 
         [0006]    In the meantime, regarding a method of sharing data among a plurality of information devices without a communication function, JP-A-2011-076540) discloses that one device displays a QR code (registered trademark) corresponding to input text data and the other device captures the displayed QR code with a camera, converts the captured QR code into original text data and displays the same. 
         [0007]    JP-B-4720607 discloses that the teacher&#39;s device receives the calculation target data from the plurality of information display devices and outputs the integrated calculated data. However, the respective information display devices should be associated with each other and connected in communication with each other in advance. 
         [0008]    Also, when the technology suggested in JP-A-2011-076540 is used, the calculation target data from the information display device of each student can be input to the teacher&#39;s device without a communication function. However, it is not possible to easily group and manage the calculation target data of each student for each class. 
         [0009]    It is therefore an object of the disclosure to provide a server apparatus, a data integration method and an electronic device capable of outputting calculation target data of respective information display devices as integrated result data in which the calculation target data is integrated for each group to which the respective information display devices belong. 
       SUMMARY OF THE INVENTION 
       [0010]    According to an aspect of the invention, a server apparatus includes a processor. The processor is configured to perform: calculation target data receiving processing, group ID receiving processing, data registering processing and integrated calculation result transmitting processing. The calculation target data receiving processing receives calculation target data which is to be output from an information display device. The group ID receiving processing receives a group ID. The data registering processing registers the calculation target data received in the calculation target data receiving processing in association with the group ID received in the group ID receiving processing. The integrated calculation result transmitting processing integrates each calculation target data registered in association with the group ID in the data registering processing for each group ID and transmits a calculating result based on the integrated data. 
         [0011]    According to the disclosure, it is possible to output the calculation target data of the respective information display devices as the aggregated calculation result data of the result in which the calculation target data is aggregated for each group to which the respective information display devices belong. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]      FIG. 1  is a pictorial view depicting a configuration of a data integration system according to an illustrative embodiment of the disclosure. 
           [0013]      FIG. 2  is a block diagram depicting a configuration of an electronic circuit of a scientific calculator  10 . 
           [0014]      FIG. 3  is a block diagram of a configuration of an electronic circuit of a compute server  30 . 
           [0015]      FIG. 4  is a flowchart depicting display control processing of the scientific calculator  10 . 
           [0016]      FIG. 5  is a flowchart depicting communication device processing of a communication device  20 . 
           [0017]      FIG. 6  is a flowchart depicting server processing (an embodiment 1) of the compute server  30 . 
           [0018]      FIG. 7  is a flowchart depicting the server processing (an embodiment 2) of the compute server  30 . 
           [0019]      FIGS. 8A ,  8 B,  8 C,  8 D,  8 E and  8 F illustrate display transition of the communication device  20  and the scientific calculator  10 . 
           [0020]      FIGS. 9A ,  9 B and  9 C illustrate displays of a server homepage (HP) screen of the communication device  20 . 
           [0021]      FIGS. 10A ,  10 B,  10 C,  10 D and  10 E illustrate display transition of the scientific calculator  10  and the communication device  20 . 
           [0022]      FIGS. 11A ,  11 B and  11 C illustrate displays of the server homepage (HP) screen of a communication device  20 B. 
           [0023]      FIGS. 12A ,  12 B,  12 C,  12 D and  12 E illustrate display transition of the scientific calculator  10  and the communication device  20 . 
           [0024]      FIGS. 13A and 13B  illustrate displays of the server homepage (HP) screen of a communication device  20 . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0025]    Hereinafter, illustrative embodiments of the disclosure will be described with reference to the drawings. 
         [0026]      FIG. 1  is a pictorial view depicting a configuration of a data integration system according to an illustrative embodiment of the disclosure. 
         [0027]    The data integration system includes a scientific calculator  10 , which is an information display device that is to be used by a student, a communication device  20  with a camera such as a tablet PC having a camera, which is to be used by a student or a teacher, and a compute server  30 . 
         [0028]    The scientific calculator  10  has a function of converting a variety of data relating to calculation into a two-dimensional code such as a QR code (registered trademark) and displaying the same. The communication device  20  is configured to capture a display image of the two-dimensional code with the auxiliary camera thereof, to access the compute server  30  through a communication network N such as the Internet in accordance with data obtained from the acquired two-dimensional code, and to transmit calculation target data to the compute server  30 . The compute server  30  is configured to integrate the calculation target data transmitted from the respective scientific calculators  10  for each group to which the students belong, to generate integrated calculation result data based on the calculation target data and to output the integrated calculation result data to the communication device  20 . The communication device  20  is configured to receive the integrated calculation result data and to display the same on its own display device or to output the same to a projector P for enlargement display. 
         [0029]    Also, in the below, a specific example where three students A, B and C belonging to the same group collect and input sample data of heights X and weights Y of Japanese, US and German children to the scientific calculators (the information display devices)  10 , respectively, and learn the statistics by a statistical calculation function of the scientific calculator using the sample data is described. 
         [0030]    When a command of code display is received from a user, the scientific calculator  10  converts the calculation target data of statistical calculation into a two-dimensional code including a homepage (HP) address of the calculation server (server apparatus)  30  and displays the same on a display unit  12 , as a two-dimensional code image. Each of the students A, B and C captures the two-dimensional code image displayed on the scientific calculator  10  by the communication device  20 , so that content data of the two-dimensional code is transmitted to the compute server  30 . 
         [0031]    In the meantime, the communication device  20  is not limited to the tablet PC having a camera, and may be a PDA (personal digital assistants) having a camera, a smart phone having a camera, a note PC (personal computer) having a camera or having a camera connected thereto, and the like. 
         [0032]    Also, while the two communication devices  20  are depicted in  FIG. 1 , the communication device  20  is prepared for each student and each teacher. Also, the one scientific calculator  10  is just representatively depicted. Actually, the scientific calculators  10  are prepared in correspondence to the number of students. Also, the scientific calculator  10  may be additionally provided for the teacher. 
         [0033]    The scientific calculator  10  has a small size so that the user can sufficiently grip and operate the same with one hand, due to the necessity of portability. A front surface of a main body of the scientific calculator  10  is provided with a key input unit  11  and a display unit  12 . 
         [0034]    The key input unit  11  includes a numeric/operation symbol key group  111  for inputting a numeric value and a expression or instructing execution of calculation, a mathematical function key group  112  for inputting a variety of mathematical functions or starting a memory function, a mode setting key group  113  for displaying menu screens of various operation modes and instructing settings of the various operation modes, and a cursor key  114  for moving a cursor displayed on the display unit  12  and selecting a data item. 
         [0035]    As the numeric/operation symbol key group  111 , [0] to [9] (the numeric value) keys, [+][−][×][÷] (four arithmetic operations) keys, [Ans] [=] (execution) key, [AC] (clear) key and the like are arranged. 
         [0036]    As the mathematical function key group  112 , [x−1] (reciprocal) key, [√□] (root) key, [□/□] (fraction) key, [sin] (sine) key and the like are arranged. 
         [0037]    As the mode setting key group  113 , [MODE] (mode) key, [SHIFT] (shift) key, [ALPHA] (alphabet) key, [ON] (power-on) key and the like are arranged. 
         [0038]    In the meantime, the keys of the numeric/operation symbol key group  111  and the mathematical function key group  112  are respectively configured so that when the corresponding key is continuously operated after the [SHIFT] key is operated, it functions as a key described above the key, not a key function described on a top of the key. 
         [0039]    The display unit  12  consists of a liquid crystal display unit of a dot matrix type. 
         [0040]      FIG. 2  is a block diagram depicting a configuration of an electronic circuit of a scientific calculator  10 . 
         [0041]    Here, one of the scientific calculators  10 A,  10 B,  10 C possessed by the plurality of students A, B, C is described as the scientific calculator  10 . 
         [0042]    An electronic circuit of the scientific calculator  10  has a CPU  13 , which is a computer, a memory  14  and a recording medium reading unit  15 , in addition to the key input unit  11  and the display unit  12 . Also, as shown with the dotted line in  FIG. 2 , the electronic circuit may have a wireless communication unit  16 . 
         [0043]    The CPU  13  is configured to control operations of the respective units of the electronic circuit and to execute a variety of arithmetic processing, in response to a expression calculation processing program  141  stored in the memory  14 . The expression calculation processing program  141  cannot be rewritten by a user&#39;s operation on the key input unit  11 . 
         [0044]    In the memory  14 , a unique ID  142  is also stored as user-unrewritable information. The unique ID  142  is an ID specific to each scientific calculator  10 . 
         [0045]    In the memory  14 , an input data area  143  is secured so as to store data that can be rewritten by the user, in addition to the user-unrewritable information. 
         [0046]    Here, the input data area  143  is sequentially input with data from the key input unit  11  and stores therein expression data and table data. In addition, the input data area  143  stores therein statistical functions, function types such as calculation types and data necessary for statistical calculation. 
         [0047]    The wireless communication unit  16  has a function of performing communication with an external device, such as Bluetooth (registered trademark) and infrared communication. 
         [0048]    In the scientific calculator  10  configured as described above, the CPU  13  controls the operations of the respective units of the electronic circuit in accordance with commands described in the expression calculation processing program  141 , thereby implementing a display control function as described later. 
         [0049]    Each of the communication devices  20 A,  20 B,  20 C is configured to capture the two-dimensional code image displayed on the display unit  12  of each of the scientific calculators  10 A,  10 B,  10 C and to transmit the content data of the captured two-dimensional code image to the compute server  30  of which a homepage (HP) address is preset, through the communication network N. 
         [0050]      FIG. 3  is a block diagram of a configuration of an electronic circuit of the compute server  30 . 
         [0051]    The electronic circuit of the compute server  30  has a CPU  31 , which is a computer, a memory  32 , a recording medium  33 , a recording medium reading unit  34 , and a communication unit  35 . Also, as shown with the dotted line in  FIG. 3 , the electronic circuit may have a key input unit  36  or a display unit  37 . 
         [0052]    The CPU  31  is configured to control operations of the respective units of the electronic circuit, in response to a server control program  321  stored in advance in the memory  32 , thereby executing a variety of processing in accordance with the content data (hereinafter, referred to as barcode content data) of the two-dimensional code (QR code) from the communication device  20  received at the communication unit  35 . The server control program  321  may be read from the recording medium  33  such as a memory card into the memory  32  through the recording medium reading unit  34  or may be downloaded from a Web server (not shown) on the communication network N to the memory  32  through the communication unit  35 . 
         [0053]    In the memory  32 , a registration data memory  322  for registering the barcode content data received from the communication device  20  for each group ID is secured. In the registration data memory  322 , a dedicated data area  322  for each group ID is prepared, and the barcode content data obtained from the scientific calculator  10  of each student is registered for each group. 
         [0054]    In an embodiment 1 of this illustrative embodiment, the group ID stored in the compute server  30  is registered in advance by an access from the communication device  20  of the teacher who is in charge of the corresponding group. When the first barcode content data is received from the communication device  20  of the student, the compute server  30  requests the communication device  20  to input a group ID. When the student inputs a group ID, the compute server  30  registers the received barcode content data (including an calculator-unique ID) in the dedicated data area  322 . 
         [0055]    In an embodiment 2 of this illustrative embodiment, when an access from the communication device  20  of the teacher is made, a group ID of a group that is handled by the teacher and the calculator-unique IDs of the respective students belonging to the corresponding group are associated and registered in advance. In the embodiment 2, the barcode content data received from the communication device  20  of the student is registered in the dedicated data area of the corresponding group ID, in accordance with the calculator-unique ID included in the barcode content data. 
         [0056]    In the compute server  30  configured as described above, the CPU  31  controls the operations of the respective units of the electronic circuit in accordance with commands described in the server control program  321  and the software and the hardware operate in cooperation with each other, so that a server processing function as described later is implemented. 
         [0057]    The communication device  20  may display integrated calculated data and calculation result data received from the compute server  30  through the communication network N on a display unit  21  and enlarge, project and display the same through the connected projector P. 
         [0058]    Subsequently, operations of the data integration system having the above configuration are described. 
         [0059]      FIG. 6  is a flowchart depicting server processing (embodiment 1) of the compute server  30 . 
         [0060]      FIGS. 8A ,  8 B,  8 C,  8 D,  8 E and  8 F illustrate transition of a display operation associated with the registration of the group ID by the teacher&#39;s communication device  20 , a display operation at a statistical mode of the scientific calculator  10 A of the student A and a display operation associated with an access of the communication device  20 A of the student A to the compute server  30 . 
         [0061]    In the below descriptions, the processing of the scientific calculator  10 , the communication device  20  and the compute server  30  is mixed over time. Therefore, before the description, the symbol &lt; &gt; is used so as to indicate in which apparatus the processing is to be executed. 
         [0062]    &lt;Server&gt; 
         [0063]    First, the operations of the compute server  30  (embodiment 1) are described with reference to  FIG. 6 . 
         [0064]    When it is determined that the teacher&#39;s communication device  20  accesses a group ID registration site of the homepage (HP) of the compute server  30  (step S 301 ), a group ID registration screen Gr for urging the user to input a group ID and an email address is transmitted to the communication device  20 , which is a source of the access, and is displayed on the display unit  21  (step S 302 ), as shown in  FIG. 8A . 
         [0065]    When a group ID [ABC123] of a group, which is handled by the teacher, and an email address [abc@def.ghi.com] are input and an [OK] key is operated at the teacher&#39;s communication device  20  in accordance with the group ID registration screen Gr, the input group ID and email address are transmitted to the compute server  30 . 
         [0066]    In the compute server  30 , the group ID and email address transmitted from the teacher&#39;s communication device  20  are registered in the registration data memory  322  (step S 303 ), and the dedicated data area  322  for the corresponding group ID is prepared (step S 304 ). 
         [0067]    &lt;Scientific Calculator A&gt; 
         [0068]      FIG. 4  is a flowchart depicting display control processing of the scientific calculator  10 . 
         [0069]    When a statistical calculation function is selected in a calculation function list menu (not shown) (step S 101 ), which is displayed as the [MODE] key of the scientific calculator (information display device)  10 A of the student A is operated, the operation mode is set to the statistical mode and a statistical calculation type list menu Mc for designating a type of the statistical calculation is displayed on the display unit  12 , as shown in  FIG. 8B . 
         [0070]    When the user designates a desired calculation type (here, [2: A+BX] to bivariate statistical calculation; primary regression) (step S 102 ), a table data input screen (bivariate input screen) Gi for inputting computational element (table) data in the bivariate statistical calculation is displayed, as shown in  FIG. 8C . 
         [0071]    When the computational element data (here, sample data of heights X and weights Y of Japanese junior high school girls) is input on the table data input screen (bivariate input screen) Gi, the designated calculation type (bivariate statistical calculation) and the input element data X, Y are stored in the input data area  143  of the memory  14  (step S 103 ). 
         [0072]    Here, when the [QR] ([SHIFT]+[OPTN]) key of the key input unit  11  is operated (step S 104 ), a two-dimensional code is generated and displayed as shown in  FIG. 8D  (step S 105 ). The two-dimensional code includes the homepage (HP) address of the compute server  30 , a unique ID (xxxx1) of the main calculator, a calculation function type (bivariate statistical calculation; primary regression), functional computational data (computational element data (X, Y)), setting information and the others, which are two-dimensionally coded. 
         [0073]    The setting information includes setting information of various modes such as an angle mode, a rounding mode, a display mode and the like. 
         [0074]    When the [=] key is operated to instruct calculation execution (step S 106  (Yes)) after the statistical calculation is designated and the computational element data (X, Y) is input in accordance with the processing of steps S 101  to S 103 , the statistical calculation (bivariate statistical calculation; primary regression) of the designated type is executed (step S 107 ). 
         [0075]    At this time, based on the computational element data (X, Y), parameters a, b of a regression formula (y=a+bx), a correlation coefficient r, a determination coefficient r 2 , and an average square error MSe are calculated and displayed on the display unit  12 , as statistical calculation result data (step S 108 ). 
         [0076]    When the [QR] key is operated (step S 109 ) after the designated statistical calculation is executed, the homepage (HP) address of the compute server  30 , the unique ID (xxxx1) of the main calculator, the calculation function type being executed (the statistical calculation function and the calculation type (bivariate statistical calculation; primary regression)), the statistical calculation result data, the setting information and the others are two-dimensionally coded as the barcode content data and displayed the display unit  12  (step S 110 ). 
         [0077]    At this time, when the computational element data is input again, the processing returns to step S 102  (step S 111  to S 102 ), and otherwise to step S 101 . 
         [0078]    &lt;Communication Device&gt; 
         [0079]      FIG. 5  is a flowchart depicting communication device processing of the communication device  20 . 
         [0080]    When the two-dimensional code image Q displayed on the display unit  12  of the scientific calculator  10 A of the student A is captured by the communication device (e.g., tablet PC)  20 A of the student A, as shown in  FIG. 8E , the contents of the two-dimensional code image Q are decoded (step S 201 ). Then, the calculator-unique ID (xxxx1), the calculation function type (the statistical calculation function and the calculation type (bivariate statistical calculation; primary regression)), the functional computational data (the computational element data (X, Y)), the setting information, and the others, which are the content data of the barcode, are transmitted to the compute server  30  through the communication network N (step S 202 ) (refer to  FIG. 2 ). 
         [0081]    &lt;Server&gt; 
         [0082]    When the compute server  30  receives the barcode content data from the communication device  20 A of the student A, the calculation server determines that the access to the processing site of the calculator calculation data is made (step S 305  (Yes)). Then, the received barcode content data ‘the calculator-unique ID (xxxx1), the calculation function type (the statistical calculation function and the calculation type (bivariate statistical calculation; primary regression)), the functional computational data (computational element data (X, Y)), the setting information, and the others’ is temporarily preserved in the memory  32  (step S 306 ). Also, a communication path between the compute server  30  and the communication device  20 A of the student A is established at a point of time that the barcode content data is received, and then the communication is performed one-on-one between the compute server  30  and the communication device  20 A of the student A. Thereby, the barcode content data is associated with a group ID, which is to be received thereafter, in the compute server  30 . 
         [0083]    When it is determined that the barcode content data temporarily preserved in the memory  32  is data of the statistical calculation function (step S 307  (Yes)), it is determined whether the barcode content data includes the functional computational data (computational element data (X, Y)) (or includes the statistical calculation result data), too (step S 308 ). 
         [0084]    Here, when it is determined that the barcode content data includes the functional computational data (step S 308  (Yes)), too, the statistical calculation based on the functional computational data (X, Y) is executed, in response to the calculation function type (statistical calculation) and the calculation type (bivariate statistical calculation; primary regression). As a result of the calculation, image data Gs (refer to  FIG. 8F ) of a calculation result including data Ka such as the number of data, average values, minimum values, maximum values and the like of the heights X and weights Y, and a graph image (scatter diagram) gs 1  is prepared and transmitted to the communication device  20 A (step S 309 ). At this time, the prepared graph image (scatter diagram) gs 1  is prepared with the red plot points. 
         [0085]    In the meantime, the image data Gs (refer to  FIG. 8F ) of the calculation result is added with a pull-down menu Pc for calculation type designation request for enabling a user to designate a calculation type, and the calculation type of the pull-down menu Pc is set to ‘scatter diagram’, as a default. 
         [0086]    When the image data Gs (refer to  FIG. 8F ) of the calculation result is transmitted, an icon h (refer to  FIG. 8F ) ‘move to page for data share’ for sharing and integrating the calculation result data among the students belonging to the same group is also transmitted (step S 310 ). 
         [0087]    &lt;Communication Device&gt; 
         [0088]    When the communication device  20 A of the student A receives the image data Gs of the calculation result and the icon h ‘move to page for data share’ transmitted from the compute server  30 , a server homepage (HP) screen in which the icon h is incorporated in the image data Gs of the calculation result is displayed on the display unit  21 , as shown in  FIG. 8F  (step S 203 ). 
         [0089]    In the server homepage (HP) screen, the icon h ‘move to page for data share’ is touched, the designation content is transmitted to the compute server  30  (step S 204 ). 
         [0090]    &lt;Server Apparatus&gt; 
         [0091]    When the compute server  30  receives the designation content ‘move to page for data share’ of the icon h from the communication device  20 A (step S 311  (Yes)), it is determined whether the calculator-unique ID (xxxx1), which is included in the barcode content data temporarily stored in the registration data memory  322  of the memory  32  in step S 306 , has been registered (step S 312 ). 
         [0092]    When it is determined that the calculator-unique ID (xxxx1) has not been registered (step S 312  (No)), a request for input of a group ID (refer to  FIG. 9A ) is transmitted to the communication device  20 A of the student A (step S 313 ). 
         [0093]    &lt;Communication Device&gt; 
         [0094]      FIGS. 9A ,  9 B and  9 C depict display operations on the server homepage (HP) screen (at a state where only the barcode content data from the calculator  10 A of the student A is preserved) at the communication device  20 A of the student A. 
         [0095]    When the communication device  20 A of the student A receives the request for input of the group ID transmitted from the compute server  30 , a group ID input window Wi is displayed (step S 205 ), as shown in  FIG. 9A . 
         [0096]    On the group ID input window Wi, when a group ID (here, ‘ABC123’) of the student A is input by the user&#39;s operation, the input group ID is transmitted to the compute server  30  (step S 204 ). 
         [0097]    &lt;Server Apparatus&gt; 
         [0098]    When the compute server  30  receives the group ID ‘ABC123’ from the communication device  20 A, the calculation function type, the calculation type and the functional computational data are registered with being associated with the calculator-unique ID, which is included in the temporarily preserved barcode content data, in the dedicated data area  322 A corresponding to the group ID (step S 314 ). 
         [0099]    On the other hand, when it is determined in step S 312  that the calculator-unique ID has been registered (step S 312  (Yes)), the temporarily preserved barcode content data is registered in the dedicated data area  322 A corresponding to the registered group ID ‘ABC123’ of the student A (step S 315 ). 
         [0100]    In this way, when the barcode content data by the scientific calculator  10 A is registered in the dedicated data area  322 A corresponding to the group ID of the student A, image data for data share Gsh (refer to  FIG. 9B ) including main calculator calculation target data Dm 1 , which is obtained from the registered calculator  10 A of the student A, and integrated (aggregated) calculation target data Dt, which is obtained by integrating the functional computational data obtained from the calculators of the other students belonging to the same group ID, is prepared and transmitted to the communication device  20 A of the student A (step S 316 ). 
         [0101]    A pull-down menu Pd for requesting designation of the calculation target data and the pull-down menu Pc for requesting designation of the calculation type are also transmitted to the communication device  20 A (step S 317 ). 
         [0102]    &lt;Communication Device&gt; 
         [0103]    When the communication device  20 A of the student A receives the image data for data share Gsh and the pull-down menus Pd, Pc transmitted from the compute server  30 , a server homepage (HP) screen (Gsh) in which the pull-down menu Pd and the pull-down menu Pc are added to the image data for data share Gsh is displayed on the display unit  21  (step S 205 ), as shown in  FIG. 9B . 
         [0104]    Here, since only the barcode content data obtained from the scientific calculator  10 A of the student A is registered in the dedicated data area  322 A for the group ID ‘ABC123’ of the compute server  30 , the contents of the integrated (aggregated) calculation target data Dt of the server homepage (HP) screen (Gsh) are the same as the main calculator calculation target data Dm 1 . 
         [0105]    Also, regarding the server homepage (HP) screen (image data for data share Gsh) including the main calculator calculation target data Dm 1  and the integrated (aggregated) calculation target data Dt, the integrated (aggregated) calculation target data Dt may be updated to the latest data as the user touches an integration button Bt. 
         [0106]    In the server homepage (HP) screen (Gsh) depicted in  FIG. 9B , when the item ‘main data: calculator 1’, in which only the data obtained from the scientific calculator  10 A is a calculation target, is designated by the pull-down menu Pd, the item ‘linear regression’ is designated by the pull-down menu Pc and the [Execution] button Ex is touched, the designation contents (calculation target ‘main data: calculator 1’, calculation type ‘linear regression’) are transmitted to the compute server  30  (step S 204 ). 
         [0107]    &lt;Server Apparatus&gt; 
         [0108]    When the compute server  30  receives the designation contents (calculation target ‘main data: calculator 1’, calculation type ‘linear regression’) transmitted from the communication device  20 A (step S 318 ), the parameters a, b of the regression formula (y=a+bx), the correlation coefficient r, the determination coefficient r 2 , and the average square error MSe are calculated based on the statistical calculation target data (X, Y) of the Japanese junior high school girls registered in the data area  322 A, and image data for data share Gsh (refer to  FIG. 9C ) including the calculation target data Dm 1 , the calculation result Kb and the graph image (linear regression) gs 1  is prepared and transmitted to the communication device  20 A of the student A, as the server homepage (HP) screen (Gsh) (step S 319 ). 
         [0109]    At this time, the calculation target data Dm 1  and the graph image (linear regression) gs 1  associated with the calculator-unique ID (xxxx1) and prepared by the compute server  30  are prepared by red numeric values, plot points and graph image (linear regression). 
         [0110]    &lt;Communication Device&gt; 
         [0111]    When the communication device  20 A of the student A receives the server homepage (HP) screen (image data for data share Gsh) transmitted from the compute server  30 , the received server homepage (HP) screen (Gsh) is displayed on the display unit  21  (step S 205 ), as shown in  FIG. 9C . 
         [0112]      FIGS. 10A ,  10 B,  10 C,  10 D and  10 E depict transition of display operations at the statistical mode of the scientific calculator  10 B of the student B and display operations associated with the access of the communication device  20 B of the student B to the compute server  30 . 
         [0113]    &lt;Scientific Calculator B&gt; 
         [0114]    As shown in  FIG. 10A , when the sample data of heights X and weights Y of US junior high school girls is input in the table data input screen Gi under the statistical mode at the scientific calculator  10 B of the student B, like the scientific calculator  10 A, the designated calculation type (bivariate statistical calculation) and the input element data (X, Y) are stored in the data area  143  of the memory  14  (steps S 101  to S 103 ). 
         [0115]    When the [QR] key is operated (step S 104 ) so as to transmit the calculation target data by the scientific calculator  10 B of the student B to the compute server  30 , subsequently to the student A, as shown in  FIG. 10B , a two-dimensional code image is generated and displayed on the display unit  12  (step S 105 ). 
         [0116]    &lt;Communication Device&gt; 
         [0117]    At this time, as shown in  FIG. 10C , when the student B captures the two-dimensional code image Q with the communication device  20 B, the contents of the two-dimensional code are decoded (step S 201 ), and the barcode content data ‘the calculator-unique ID (xxxx2), the calculation function type (the statistical calculation function and the calculation type (bivariate statistical calculation; primary regression)), the functional computational data (computational element data (X, Y)), the setting information, and the others’ is transmitted to the homepage (HP) address of the compute server  30  (step S 202 ). 
         [0118]    &lt;Server&gt; 
         [0119]    The compute server  30  temporarily preserves the barcode content data received from the communication device  20 B of the student B, like the case of the student A (steps S 305 , S 306 ). Then, the statistical calculation is performed based on the barcode content data, and image data Gs (refer to  FIG. 10D ) of the calculation result including the calculation result Ka and the graph image (scatter diagram) gs 2  is prepared and transmitted to the communication device  20 B (steps S 305  to S 310 ). Here, the graph image (scatter diagram) gs 2  based on the statistical data of the student B, which is prepared at the compute server  30 , is also prepared by the red plot points. 
         [0120]    &lt;Communication Device&gt; 
         [0121]    When the communication device  20 B receives the image data Gs of the calculation result and the icon h ‘move to page for data share’, the server homepage (HP) screen is displayed on the display unit  21  (step S 203 ), as shown in  FIG. 10D . 
         [0122]    Also in the server homepage (HP) screen (Gs) displayed on the communication device  20 B, when the icon h ‘move to page for data share’ is touched and the content is transmitted to the compute server  30  (step S 204 ), the compute server  30  determines that the calculator-unique ID (xxxx2), which is included in the temporarily preserved barcode content data from the scientific calculator  10 B, has not been registered (step S 311 , S 312  (No)), and the request for input of the group ID (refer to  FIG. 10E ) is transmitted to the communication device  20 B (step S 313 ). 
         [0123]    On the communication device  20 B of the student B, the group ID input window Wi is displayed (step S 205 ), as shown in  FIG. 10E . When the group ID ‘ABC123’ of the student B is input and is transmitted to the compute server  30  (step S 204 ), the calculator-unique ID (xxxx2), which is included in the temporarily preserved barcode content data, is registered with being associated in the dedicated data area  322 A corresponding to the received group ID of the student B and the barcode content data is registered at the compute server  30  (step S 314 ). 
         [0124]      FIGS. 11A ,  11 B and  11 C depict the display operations of the server homepage (HP) screen (at a state where the respective barcode content data from the respective scientific calculators  10 A,  10 B of the two students A, B is preserved) on the communication device  20 B of the student B. 
         [0125]    In this way, when the barcode content data by the scientific calculator  10 B is registered in the dedicated data area  322 A corresponding to the group ID of the student B, image data for data share Gsh (refer to  FIG. 11A ) including calculation target data Dm 2  of the registered student B, and integrated (aggregated) calculation target data Dt, which is obtained by integrating the calculation target data Dm 1  of the student A, is prepared and transmitted to the communication device  20 B of the student B (step S 316 ). 
         [0126]    Also, the pull-down menu Pd and the pull-down menu Pc are transmitted to the communication device  20 A (step S 317 ). 
         [0127]    Meanwhile, in the image data for data share Gsh, the calculation target data Dm 1  obtained from the calculator A is identified by the red numerical values and mark ‘’, and the calculation target data Dm 2  obtained from the calculator B are identified by the green numerical values and mark ‘Δ’. 
         [0128]    The server homepage (HP) screen (Gsh) in which the pull-down menu Pd and the pull-down menu Pc are added to the image data for data share Gsh is displayed on the display unit  21  of the communication device  20 B (step S 205 ), as shown in  FIG. 11A . 
         [0129]    Here, the respective barcode content data obtained from the scientific calculators  10 A,  10 B of the two the students A, B is registered in the dedicated data area  322 A of the compute server  30  for the group ID ‘ABC123’. Therefore, the item ‘main data: calculator 2’ for designating, as the calculation target, only data received this time from the scientific calculator  10 B, the item ‘integrated data: calculators 1, 2 (incorporated)’ for designating, as the calculation target, data obtained by incorporating and merging the data from the two scientific calculators  10 A,  10 B, and the item ‘integrated data: calculators 1, 2 (parallel)’ for designating, as the calculation target, the functional computational data in parallel from the two scientific calculators  10 A,  10 B are set to be selectable in the pull-down menu Pd. 
         [0130]    As shown in  FIG. 11A , when the item ‘integrated data: calculators 1, 2 (incorporated)’ is designated by pull-down menu Pd, the item ‘linear regression’ is designated by the pull-down menu Pc, and the [Execution] button Ex is touched in the server homepage (HP) screen (Gsh) displayed on the communication device  20 B, the designation contents are transmitted to the compute server  30  (step S 204 ). 
         [0131]    &lt;Server&gt; 
         [0132]    When the compute server  30  receives the designation contents transmitted from the communication device  20 B (step S 318 ), the statistical calculation corresponding to the calculation target ‘integrated data: calculators 1, 2 (incorporated)’ and the calculation type ‘linear regression’ of the designation contents is executed. Here, based on the integrated (aggregated) calculation target data (incorporated) Dt in which the statistical calculation target data (X, Y) of Japanese junior high school girls and the statistical calculation target data (X, Y) of US junior high school girls registered with being associated with the respective calculator-unique IDs (xxxx1) and (xxxx2) are incorporated and merged, the parameters a, b of the regression formula (y=a+bx), the correlation coefficient r, the determination coefficient r 2 , and the average square error MSe are calculated. Then, the image data for data share Gsh (refer to  FIG. 11B ) including the integrated (aggregated) calculation target data (incorporated) Dt, the calculation result Kb and the integrated graph image (linear regression) gsh is prepared and transmitted to the communication device  20 B of the student B, as the server homepage (HP) screen (Gsh) (step S 319 ). 
         [0133]    &lt;Communication Device&gt; 
         [0134]    When the communication device  20 B receives the server homepage (HP) screen (the image data for data share Gsh), which includes the integrated (aggregated) calculation target data (incorporated) Dt, the calculation result Kb and the integrated graph image (linear regression) gsh and is transmitted from the compute server  30 , the received server homepage (HP) screen (Gsh) is displayed on the display unit  21  (step S 205 ), as shown in  FIG. 11B . 
         [0135]    Thereby, it is possible to simply display the server homepage (HP) screen (the image data for data share Gsh) including the integrated (aggregated) calculation target data (incorporated) Dt, in which the statistical calculation target data (heights/weights of Japanese junior high school girls) of the student A and the statistical calculation target data (heights/weights of US junior high school girls) of the student B are incorporated and merged, the statistical calculation result Kb and the integrated graph image (linear regression) gsh, on the display unit  21  of the tablet PC and the like, which is the communication device  20 B of the student B (or teacher), as shown in  FIG. 11B . Then, the server homepage (HP) screen (the image data for data share Gsh) is displayed with being enlarged and projected by the projector P, so that all the classes of the students and teacher belonging to the same group (ID; ABC123) can check and learn the incorporated and integrated contents of the statistical calculation relating to the heights/weights of Japanese and US junior high school girls. 
         [0136]    Also, when the item ‘integrated data: calculators 1, 2 (parallel)’ is designated by the pull-down menu Pd, the item ‘linear regression’ is designated by the pull-down menu Pc and the [Execution] button Ex is touched on the server homepage (HP) screen (Gsh) shown in  FIG. 11A , the designation contents are transmitted to the compute server  30  (step S 204 ). 
         [0137]    &lt;Server&gt; 
         [0138]    When the compute server  30  receives the designation contents transmitted from the communication device  20 B of the student B (step S 318 ), the statistical calculation corresponding to the calculation target ‘integrated data: calculators 1, 2 (parallel)’ and the calculation type ‘linear regression’ of the designation contents is executed. Here, based on the integrated (aggregated) calculation target data (parallel) Dt in which the calculation target data (X, Y) Dm 1  of Japanese junior high school girls and the calculation target data (X, Y) Dm 2  of US junior high school girls registered with being associated with the respective calculator-unique IDs (xxxx1) and (xxxx2) are in parallel, the parameters a, b of the regression formula (y=a+bx), the correlation coefficient r, the determination coefficient r 2 , and the average square error MSe are calculated, and the respective calculation target data Dm 1 , Dm 2  and the respective calculation results Kb 1 , Kb 2  are prepared and transmitted as aggregated calculation result data of an aggregation calculation result thereof. More specifically, the image data for data share Gsh (refer to  FIG. 11C ), which includes the respective calculation target data Dm 1 , Dm 2 , the image data in which the character data of the respective calculation results Kb 1 , Kb 2  is imaged and the respective graph images (linear regressions) gs 1 , gs 2 , is transmitted to and displayed on the communication device  20 B of the student B, as the server homepage (HP) screen (Gsh) in which the image data for data share Gsh is prepared as the integrated image data integrated for each group ID (step S 319 /S 205 ). 
         [0139]    At this time, only parts of the respective calculation target data Dm 1 , Dm 2  and only the graph images (linear regressions) gs 1 , gs 2  are displayed in the server homepage (HP) screen (Gsh) shown in  FIG. 11C . However, it is possible to display the entire calculation target data Dm 1 , Dm 2  and the respective calculation results Kb 1 , Kb 2  by operating a scroll bar SB provided at a right end of the server homepage (HP) screen (Gsh) to scroll the server homepage (HP) screen (Gsh). 
         [0140]    Thereby, it is possible to simply display the server homepage (HP) screen (the image data for data share Gsh) including the respective calculation target data Dm 1 , Dm 2 , in which the statistical calculation target data (heights/weights of Japanese junior high school girls) of the student A and the statistical calculation target data (heights/weights of US junior high school girls) of the student B are integrated in parallel, the respective calculation results Kb 1 , Kb 2  and the respective graph images (linear regressions) gs 1 , gs 2 , on the display unit  21  of the tablet PC and the like, which is the communication device  20 B of the student B (or teacher), as shown in  FIG. 11C . Then, the server homepage (HP) screen (the image data for data share Gsh) is displayed with being enlarged and projected by the projector P, so that all the classes of the students and teacher belonging to the same group (ID; ABC123) can check and learn the contents of the statistical calculation integrated in parallel relating to the heights/weights of Japanese and US junior high school girls. 
         [0141]      FIGS. 12A ,  12 B,  12 C,  12 D and  12 E depict transition of display operations associated with re-input of the table data at the statistical mode of the scientific calculator  10 A of the student A and display operations associated with the access of the communication device  20 A of the student A to the compute server  30 . 
         [0142]    &lt;Scientific Calculator A&gt; 
         [0143]    When [44.9] is input to the weight Y of the sample data [5] in the table data input screen Gi on the scientific calculator  10 A of the student A so as to correct the table data shown in  FIG. 8C , as shown in  FIG. 12A , the corrected element data X, Y is stored in the input data area  143  of the memory  14  (steps S 101  to S 103 ). 
         [0144]    Then, when the [QR] key is operated (step S 104 ), a two-dimensional code image is generated and displayed on the display unit  12  (step S 105 ). 
         [0145]    &lt;Communication Device&gt; 
         [0146]    At this time, like the above processing, when the student A captures the two-dimensional code image Q by the communication device  20 A, as shown in  FIG. 12C , the contents of the two-dimensional code image Q are decoded (step S 201 ), and the barcode content data is transmitted to the homepage (HP) address of the compute server  30  (step S 202 ). 
         [0147]    &lt;Server&gt; 
         [0148]    Like the above processing, the compute server  30  temporarily preserves the barcode content data received from the communication device  20 A of the student A (steps S 305 , S 306 ) and executes the statistical calculation in correspondence to the barcode content data. Thereby, the image data Gs (refer to  FIG. 12D ) of the calculation result including the corrected calculation result Ka and graph image (scatter diagram) gs 1  is prepared and transmitted to the communication device  20 A of the student A (steps S 305  to S 310 ). 
         [0149]    &lt;Communication Device&gt; 
         [0150]    When the communication device  20 A receives the image data Gs of the calculation result and the icon h ‘move to page for data share’ transmitted from the compute server  30 , the server homepage (HP) screen in which the icon h is incorporated in the image data Gs of the calculation result is displayed on the display unit  21 , as shown in  FIG. 12D  (step S 203 ). 
         [0151]    Like the above processing, when the icon h ‘move to page for data share’ is touched on the server homepage (HP) screen (Gs) (step S 204 ), the compute server  30  determines that the calculator-unique ID (xxxx1) included in the temporarily preserved barcode content data from the scientific calculator  10 A has been registered (steps S 311 , S 312  (Yes)). Therefore, the temporarily preserved barcode content data is overwritten and registered in the dedicated data area  322 A (step S 315 ). 
         [0152]    Then, as shown in  FIG. 12E , the image data Gs of the calculation result, which includes the calculation result Ka and the graph image (scatter diagram) gs 1  based on the corrected computational element data (X, Y), is displayed as shown in  FIG. 12E . 
         [0153]    &lt;Scientific Calculator C&gt; 
         [0154]    At this time, when the sample data of heights X/weights Y of German junior high school girls is input on the scientific calculator  10 C (not shown) of the student C and the two-dimensional code image is displayed on the display unit  12  by the same operations, and the student C captures the two-dimensional code image Q by the communication device  20 C, the compute server  30  associates the barcode content data with the calculator-unique ID (xxxx3) and registers the same in the dedicated data area  322 A for the corresponding group ID. 
         [0155]    &lt;Communication Device&gt; 
         [0156]      FIGS. 13A and 13B  depict the display operations on the server homepage (HP) screen (at a state where the barcode content data from the three students A, B, C is preserved) of the communication device  20 A of the student A. 
         [0157]    As described above, the respective barcode content data is registered in the dedicated data area  322 A corresponding to the same group ID ‘ABC123’ to which all the students A, B, C belong. 
         [0158]    When the icon h ‘move to page for data share’ is touched on the server homepage (HP) screen (the image data Gs of the calculation result) (refer to  FIG. 12D ) displayed on the communication device  20 A (step S 204 ), the image data for data share Gsh (refer to  FIG. 13A ) having the integrated (aggregated) calculation target data Dt, in which the calculation target data Dm 1  obtained from the scientific calculator  10 A, the calculation target data Dm 2  obtained from the scientific calculator  10 B, and the calculation target data Dm 3  obtained from the scientific calculator  10 C are integrated, is prepared and transmitted to the communication device  20 A of the student A (steps S 311 , S 312  to S 315 , S 316 ). 
         [0159]    Also, the pull-down menu Pd and the pull-down menu Pc are transmitted to the communication device  20 A (step S 317 ). 
         [0160]    In the integrated image data for data share Gsh, the calculation target data Dm 1  is identified with the red numerical values and mark ‘’, the calculation target data Dm 2  is identified with the green numerical values and mark ‘Δ’, and the calculation target data Dm 3  is identified with the blue numerical values and mark ‘▪’. 
         [0161]    When the communication device  20 A receives the image data for data share Gsh transmitted from the compute server  30 , the server homepage (HP) screen (Gsh), in which the pull-down menus Pd, Pc are added to the image data for data share Gsh, is displayed on the display unit  21  (step S 205 ), as shown in  FIG. 13A . 
         [0162]    Here, the items ‘main data: calculator 1’, ‘integrated data: calculators 1, 2, 3 (incorporated)’ and ‘integrated data: calculators 1, 2, 3 (parallel)’ for designating the calculation target are set to be selectable in the pull-down menu Pd. 
         [0163]    As shown in  FIG. 13   a , when the item ‘integrated data: calculators 1, 2, 3 (incorporated)’ is designated by the pull-down menu Pd, the item ‘linear regression’ is designated by the pull-down menu Pc and the [Execution] button Ex is touched, as shown in  FIG. 13A , the designation contents (the calculation target ‘integrated data: calculator 1, 2, 3 (incorporated)’ and the calculation type ‘linear regression’) are transmitted to the compute server  30  (step S 204 ). 
         [0164]    In the compute server  30 , the parameters a, b of the regression formula (y=a+bx), the correlation coefficient r and the like are calculated based on the integrated (aggregated) calculation target data (incorporated) Dt, in which the statistical calculation target data (X, Y) of Japanese, US and German junior high school girls registered with being associated with the calculator-unique IDs (xxxx1) to (xxxx3) is incorporated, and the integrated (aggregated) calculation target data Dt and the calculation result Kb are prepared and transmitted as aggregated calculation result data Dt of an aggregation calculation result. More specifically, the image data for data share Gsh (refer to  FIG. 13B ), which includes the aggregated calculation target data Dt, the image data in which the character data of the calculation result Kb is imaged, and the integrated graph image (linear regression) gs, is prepared and transmitted to the communication device  20 A of the student A, as the server homepage (HP) screen (Gsh) (step S 319 ). 
         [0165]    Then, as shown in  FIG. 13B , the received server homepage (HP) screen (Gsh) is displayed on the display unit  21  of the communication device  20 A (step S 205 ). 
         [0166]    At this time, when an instruction to end the processing is transmitted to the compute server  30  by the user&#39;s operation on the communication device  20  (steps S 206  (Yes), S 207 ), the series of calculation server processing is over in the compute server  30  and the processing returns to the initial processing (step S 320  (Yes) to S 301 ). 
         [0167]    In the meantime, when the [QR] key is operated on the scientific calculator  10  after the statistical calculation is executed, the two-dimensional code image Q including the statistical calculation result data is displayed. When the two-dimensional code is captured by the communication device  20  and the barcode content data is transmitted to the compute server  30 , the compute server  30  determines that the statistical calculation result data is also included in the barcode content data (steps S 307 , S 308  (No)). 
         [0168]    Then, the statistical calculation is performed and the parameters a, b of the regression formula (y=a+bx), the correlation coefficient r and the like are calculated based on the barcode content data, and the graph image (linear regression) is prepared and transmitted to the communication device  20  (steps S 321 /S 203 ). 
         [0169]    Meanwhile, the calculation server processing (embodiment 1) depicted in  FIG. 6 , the communication device  20  of the teacher accesses the group ID registration site of the compute server  30 , so that the dedicated data area  322  for the group ID is prepared in advance, as shown in  FIG. 8A  (steps S 301  to S 304 ). 
         [0170]    In contrast, as shown in the calculation server processing (embodiment 2) of  FIG. 7 , the corresponding calculator-unique ID may be registered in advance in the dedicated data area  322  for the group ID by registering in advance the group ID of the group that is handled by the teacher, the calculator-unique ID of each student belonging to the group and the email address of the communication device  20  of the teacher in the group ID memory  323  (steps S 301 , S 302 ′, S 303 ′,S 304 ). 
         [0171]    According to this configuration, when the barcode content data obtained from the scientific calculator  10  is received at the compute server  30 , the dedicated data area  322 A for the group ID corresponding to the calculator-unique ID included in the received data is automatically determined and data is registered therein (step S 312  (Yes) to S 315 ). For this reason, the processing (steps S 314 , S 315 ) of requesting the respective users (the student A, B, . . . ) to input the group ID and determining the dedicated data area  322  for the group ID corresponding to the calculator-unique ID included in the received data is not required. Meanwhile, also in the calculation server processing (embodiment 2), when the calculator-unique ID included in the received data is not registered in any dedicated data area  322  for the group ID, the request for input of the group ID is transmitted to the user, the dedicated data area  322  for the input group ID is prepared and the calculator-unique ID is associated and set (step S 312  (No) to S 313 , S 314 ), like the embodiment 1. 
         [0172]    In the above embodiments, the calculation data is aggregated for each group ID for the unique ID of the information display device (calculator) of each student at the server. In this case, when the calculation data is corrected with the same unique ID and is acquired at the server, the calculation data of the unique ID is updated and registered. In contrast, even with the same unique ID, the calculation data may be individually stored ad aggregated by date and time. Also, the latest calculation data of the unique ID of the data aggregated to the group ID may be aggregated as the aggregation target. Also, the teacher who manages the group ID may be enabled to initialize the aggregated data in the group ID and to set whether to delete the data except for the latest calculation data of each unique ID or to save all the data. 
         [0173]    In the meantime, the methods of the respective processing by the data integration system described in the illustrative embodiments, i.e., the respective methods of the display control processing by the scientific calculator (information display device) depicted in the flowchart of  FIG. 4 , the communication device processing by the communication device  20  depicted in the flowchart of  FIG. 5 , the server processing (embodiment 1) by the compute server  30  depicted in the flowchart of  FIG. 6 , the server processing (embodiment 2) by the compute server  30  depicted in the flowchart of  FIG. 7 , and the like may be stored and distributed in the recording medium such as a memory card (a ROM card, a RAM card and the like), a magnetic disc (floppy (registered trademark) disc, hard disc and the like), an optical disc (a CD-ROM, a DVD and the like) and a semiconductor memory, as a program configured to be executable by a computer. Also, the program data for implementing the respective methods may be transmitted through the communication network N, as program codes, and the program data is received at a computer of an electronic device connected to the communication network N by a communication unit, so that the display control function, the communication device function and the server function can be implemented. 
         [0174]    The disclosure is not limited to the illustrative embodiments and can be variously modified without departing from the scope and spirit of the disclosure upon the implementation. Further, the illustrative embodiments include a variety of inventions, and a variety of inventions can be conceived by an appropriate combination of the plurality of disclosed constitutional elements. For example, even when some of all the constitutional elements described in the illustrative embodiments are omitted and some constitutional elements are combined as other shapes, it is possible to solve the above-described problems. Also, the configuration where the constitutional elements are omitted or combined can be conceived as the invention when the above-described effects are accomplished.