JP2011053827A - Electronic equipment and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an external display device display both display data corresponding to a user operation and significant data corresponding to the display data, with respect to compact electronic equipment connectable to a projector. <P>SOLUTION: For example, in a function graphic mode, display setting data for setting the coordinate range of graphic display and a desired graphic formula are input, and when a display part 20 is made to display a function graph screen GF on which a graph corresponding to the graphic formula is drawn, the other screen types (graphic type screen and display setting screen) corresponding to the displayed screen type (function graph screen) are determined according to screen type correspondence data in each operation mode stored in advance. Then, projector transmission data in which the respective screens of not only a function graphic screen GF under current display but also the determined corresponding screen types of graph type screen SF and display setting screen SH are arranged for a projector 30 are generated, and transmitted to the projector 30, and projected and displayed on a screen 37. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a small electronic device having a connection function with a large-screen display device such as a projector, and a control program therefor.

  In recent years, a small electronic calculator called a scientific calculator that can perform various kinds of calculation processing such as function calculation has been widely used in an educational field.

  When this small electronic calculator is used by both teachers and students for learning calculations, for example, the image of the key operated by the teacher in the class and the position of this key on the keyboard are identified. The image of the keyboard and the image of the display screen operated in response to this key operation are also transmitted to the projector.

  Each time a key is operated, the key image, keyboard image, and display screen image are updated and displayed on the projector side, so that various calculations using this computer can be learned efficiently. An apparatus (small electronic calculator) has been considered (see, for example, Patent Document 1).

JP 2008-108132 A

  In the conventional electronic device (small electronic calculator), the actual operation procedure of what kind of key operation the teacher performs, the position of the key, and the operation screen corresponding to the key operation are displayed on the projector side in real time by the student. You can see and learn mainly how to operate the computer.

  However, in the electronic apparatus (small electronic calculator), for example, when an arbitrary function expression is input and a graph corresponding to the function expression is displayed, the image of the key operation and the image of the graph are displayed on the projector side. Although it can be displayed, it is not possible to display not only operation data but also important data corresponding to display data obtained by a certain process, such as a function expression, graph, and display range (coordinate range) of the graph. .

  The present invention has been made in view of such a problem, and an electronic apparatus capable of displaying display data corresponding to a user operation and important data corresponding to the display data on an external display device. And it aims at providing the control program.

  The electronic device according to claim 1 is an electronic device having a connection function with a display device and having a display unit, and data processing means for processing data in accordance with a user operation, and data by the data processing means Screen type correspondence storage means for storing the screen types of a plurality of types of screen data each having a corresponding relationship acquired in accordance with processing, and screen data acquired in response to data processing by the data processing means; The processing screen display control means to be displayed on the display section, and another screen type corresponding to the screen type of the screen data displayed on the display section by the processing screen display control means is stored in the screen type correspondence storage means. Corresponding screen type determining means determined based on each screen type and screen data of other screen types determined by the corresponding screen type determining means. Corresponding screen acquisition means for acquiring data based on data processing by the data processing means, screen data displayed by the processing screen display control means, screen data of other screen types acquired by the corresponding other screen acquisition means, And an image transmitting means for transmitting an image comprising the above to the display device.

  The electronic device according to claim 2 is the electronic device according to claim 1, wherein the image transmitted by the image transmission unit to the display device is associated with the screen data displayed by the processing screen display control unit. It is an image in which screen data of another screen type acquired by another screen acquisition means is arranged on one screen, and the screen data displayed by the processing screen display control means is identified in the image. It is said.

  In the electronic device according to claim 3, in the electronic device according to claim 1 or 2, the screen type of the screen data displayed on the display unit is changed by the processing screen display control unit. Every time it is determined that the screen type of the screen data displayed on the display unit has been changed by the screen type change determining means, and the corresponding screen type determining means determines other screen types. Screen type change control means for executing determination, acquisition of screen data of another screen type by the corresponding other screen acquisition means, and transmission of an image to the display device by the image transmission means. .

  An electronic device according to a fourth aspect is the electronic device according to any one of the first to third aspects, wherein after the image is transmitted to the display device by the image transmitting means, a user operation is performed. Screen change instructing means for instructing to change the number of screen data of other screen types included in the image, and whenever the change in the number of screen data of other screen types is instructed by the screen change instructing means. , According to the number of screen data of the other screen type instructed, acquisition of screen data of another screen type by the corresponding other screen acquisition unit, and transmission of an image to the display device by the image transmission unit And a screen number change control means.

  The electronic device according to claim 5 is the electronic device according to any one of claims 1 to 4, wherein the data processing unit is a function expression to be graphed that is input in response to a user operation. Graph drawing means for drawing a graph corresponding to the function formula based on the data and display setting data for setting the display range of the graph, and the screen type correspondence storage means according to data processing by the graph drawing means A function type screen, a display screen for function setting, and a screen type correspondence storage unit for function graphs for storing each type of screen of the graph screen in association with each other. A function graph screen display control means for causing the display section to display a graph screen acquired in accordance with data processing by the drawing means; and the display by the image transmission means. A feature point calculation instruction means for instructing calculation of a feature point in the function expression according to a user operation after transmission of the image to the device; and a feature of the function expression in accordance with an instruction from the feature point calculation instruction means Feature point calculation means for calculating points, and feature point determination for determining whether or not the feature points of the function formula calculated by the feature point calculation means are included in the display range of the graph set by the display setting data And the feature point determining means displayed by the display control means of the function graph screen when it is determined that the feature point of the function expression is included in the display range of the graph set by the display setting data. An image composed of screen data obtained by adding the feature points to the screen of the graph, the screen data of the functional expression acquired by the corresponding other screen acquisition means, and the screen data of the display setting. A first regenerated image transmission unit that generates and transmits to the display device, and the feature point determination unit determines that the feature point of the functional expression is not included in the display range of the graph set by the display setting data Display function changing means for changing the display range of the set graph to the display range including the feature points, and the function graph according to the display range of the graph changed by the display setting changing means. A graph screen correcting means for correcting the screen of the graph displayed by the display control means of the screen; screen data obtained by adding the feature points to the screen of the graph whose display range is corrected by the graph screen correcting means; Regenerate the image consisting of the screen data of the functional expression acquired by the screen acquisition means and the screen data of the display settings changed by the display setting change means And second regenerated image transmission means for transmitting to the display device.

  The program according to claim 6 is a program for controlling a computer of an electronic device having a connection function with a display device and having a display unit, and the computer processes data in accordance with a user operation. A data processing means, a screen type correspondence storage means for associating each screen type of a plurality of types of screen data acquired in accordance with data processing by the data processing means and storing them in a memory, and the data processing means Processing screen display control means for displaying screen data acquired according to data processing on the display section, and other screen types corresponding to the screen types of the screen data displayed on the display section by the processing screen display control means. Corresponding screen type determining means for determining based on each screen type stored by the screen type correspondence storing means. Corresponding other screen acquisition means for acquiring screen data of another screen type determined by the corresponding screen type determining means based on data processing by the data processing means, screen data displayed by the processing screen display control means, and the correspondence It is characterized by functioning as image transmission means for transmitting an image composed of screen data of another screen type acquired by the screen acquisition means to the display device.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can display on a display apparatus according to user operation and the important data corresponding to the said display data together on an external display apparatus, and its control program can be provided.

The block diagram which shows the structure of the learning information projection system which combined the projector 30 with the graph scientific calculator (small electronic device) 10 which concerns on embodiment of the electronic device of this invention. 1 is a front view showing an external configuration of a vertical graph scientific calculator 10. FIG. 1 is a front view showing an external configuration of a horizontal graph scientific calculator 10. FIG. The figure which shows the content of the main data memorize | stored in ROM12 of the said graph scientific calculator 10. FIG. The figure which shows the content of the data memory ensured in DRAM17 of the said graph scientific calculator 10. FIG. 9 is a flowchart showing a function graph data input / graph display process in a function graph mode of the graph scientific calculator (small electronic device) 10; 9 is a flowchart showing statistical graph data input / graph display processing in a statistical graph mode of the graph scientific calculator (small electronic device) 10; 7 is a flowchart showing projector correspondence processing that is repeatedly executed by interruption in each operation mode of the graph scientific calculator (small electronic device) 10; The figure which shows the specific example of the calculator display operation | movement accompanying the projector corresponding | compatible process in the function graph mode of the said vertical graph scientific calculator (small electronic device) 10, and a projector display operation. The figure which shows the specific example (the 1) of the calculator display operation | movement and projector display operation | movement accompanying the projector corresponding | compatible process in the statistical graph mode of the said horizontal graph scientific calculator (small electronic device) 10. FIG. The figure which shows the specific example (the 2) of the calculator display operation | movement and projector display operation | movement accompanying the projector corresponding | compatible process in the statistical graph mode of the said horizontal graph scientific calculator (small electronic device) 10. FIG. The figure which shows the specific example (the 1) of the calculator display operation | movement and projector display operation | movement accompanying the projector corresponding | compatible process in the function graph mode of the said horizontal graph scientific calculator (small electronic device) 10. FIG. The figure which shows the specific example (the 2) of the calculator display operation | movement and projector display operation | movement accompanying the projector corresponding | compatible process in the function graph mode of the said horizontal graph scientific calculator (small electronic device) 10. FIG.

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

  FIG. 1 is a block diagram showing a configuration of a learning information projection system in which a projector 30 is combined with a graph scientific calculator (small electronic device) 10 according to an embodiment of the electronic device of the present invention.

  FIG. 2 is a front view showing an external configuration of the vertical graph scientific calculator 10.

  FIG. 3 is a front view showing an external configuration of the horizontal graph scientific calculator 10.

  The graph scientific calculator 10 includes a control unit (CPU) 11 that is a computer.

  The control unit (CPU) 11 is a system program stored in the ROM (Flash) 12 in advance, a computer control program stored in the system area in the ROM 12 from the memory card 13 via the I / O port 14, or I In accordance with a computer control program downloaded from the Web server (program server) 16 on the communication network N connected from the / O port 14 via the external PC 15 and stored in the system area in the ROM 12, the DRAM 17 is stored in the working memory. The operation of each part of the circuit is controlled as (work memory). The system program stored in advance in the ROM 12 and the computer control program read into the system area are activated in response to a key input signal from the keyboard 18.

  The computer control program stored in the ROM 12 includes a basic processing program 12a (see FIG. 4) for controlling the calculation / display operation over the entire operation of the graph scientific calculator 10. Control of display of numerical values, symbols and calculation formulas input by keys, calculation formula calculation, calculation result display, graph drawing / display, cursor (pointer) display / movement display, and the like are controlled. In addition, the computer control program corresponds to (related to) the current display screen of the graph scientific calculator 10 and the contents of the current display screen when the graph scientific calculator 10 is connected to the projector 30. Also included is a projector corresponding processing program 12b (see FIG. 4) that generates and transmits image data for displaying the above screen together.

  In addition to the ROM 12, the memory card 13, the I / O port 14, the DRAM 17, and the keyboard 18, the control unit (CPU) 11 is connected to a liquid crystal display unit (LCD) 20 through a liquid crystal driving circuit 19. The

  The I / O port 14 is connected to a projector 30 for projecting and displaying the current display screen of the graph scientific calculator 10 and other screens corresponding to (related to) the current display screen.

  As shown in FIGS. 2 and 3, the keyboard 18 is provided with various keys such as operator keys, numeric keys, and cursor keys, as well as function / function keys for specifying various functions and calculation formats. .

  FIG. 4 is a diagram showing the contents of main data stored in the ROM 12 of the graph scientific calculator 10.

  In addition to the basic processing program 12a and the projector corresponding processing program 12b as the computer control program, the ROM 12 stores screen type corresponding data 12c.

  The screen type correspondence data 12c is data for storing the screen types in correspondence with each other in each operation mode of the graph scientific calculator 10. For example, the screen type correspondence data 12c is for the function graph mode for displaying a graph corresponding to the function formula. The screen type correspondence data 12c1 includes a function graph screen (GF) for drawing the graph, a graph formula screen (SF) for drawing a graph formula (function formula) corresponding to the graph, and the function graph screen (GF). ) And a display setting screen (SH) for setting a display range (coordinate range) are stored in association with each other.

  Further, as the screen type correspondence data 12c2 for the statistical graph mode for displaying the regression graph corresponding to the statistical (table) data, for example, the statistical graph screen (GT) for drawing the graph and the statistics (table) corresponding to the graph ) A table data screen (LT) for drawing data, a display setting screen (SH) for setting a display range (coordinate range) of the statistical graph screen (GT), and a graph type for regression of statistical (table) data. Four screen types with the statistical setting screen (ST) to be set are associated and stored.

  Further, for example, the screen type correspondence data 12c3 for the equation calculation mode for inputting a coefficient to an equation and displaying the solution thereof includes an equation coefficient screen for inputting an arbitrary coefficient to the equation, and a solution of the equation in which the coefficient is input. Two screen types, the equation solution screen to be drawn, are stored in association with each other.

  The screen type correspondence data for other operation modes is stored in the same manner.

  FIG. 5 is a diagram showing the contents of the data memory secured in the DRAM 17 of the graph scientific calculator 10.

  As shown in FIG. 5, the DRAM 17 includes a graph type data memory 17a, a display setting data memory 17b, a table data memory 17c1, a statistical setting data memory 17c2, a connection presence / absence memory 17d, a current screen type memory 17e, and a corresponding other screen type. A memory 17f, a transmission other screen type memory 17g, a current screen image memory 17h, another screen n image memory 17in..., A transmission image memory 17j, and the like are provided.

The graph formula data memory 17a stores a function formula to be graphed.
The display setting data memory 17b stores a coordinate range of a screen for drawing a graph.

  The table data memory 17c1 stores statistical (table) data.

  The statistical setting data memory 17c2 stores a form and target items for analyzing the statistical (table) data.

  In the connection presence / absence memory 17d, a flag indicating a connection state with the projector 30 is stored.

  The current screen type memory 17e stores the screen type currently displayed on the graph scientific calculator 10.

  The corresponding other screen type memory 17f stores other related screen types read from the screen type correspondence data 12c corresponding to the current screen type stored in the current screen type memory 17e.

  The other screen type to be transmitted to the projector 30 among the other screen types stored in the corresponding other screen type memory 17f is selectively stored in the transmission other screen type memory 17g.

  The current screen image memory 17h stores the actual image data of the currently displayed screen type stored in the current screen type memory 17e.

  The other screen 1 image memory 17i1, the other screen 2 image memory 17i2,... Store actual image data of each of the other screen types stored in the corresponding other screen type memory 17f.

  The transmission image memory 17j stores the actual image data of the currently displayed screen type stored in the current screen image memory 17h and other screen types to be transmitted to the projector 30 stored in the transmission other screen type memory 17g. Are stored together with the actual image data of other screen types selectively read from the other screen 1 image memory 17i1, other screen 2 image memory 17i2,.

  On the other hand, the projector 30 includes a control unit (CPU) 31 that is a computer.

  The control unit (CPU) 31 is downloaded from a system program stored in advance in the ROM 32 or a Web server (program server) 16 on the communication network N connected from the I / O port 33 via the external PC 15. According to the projector control program stored in the system area in the ROM 32, the operation of each part of the circuit is controlled using the RAM 34 as a working memory (work memory). The system program stored in advance in the ROM 32 and the projector control program read into the system area are activated based on a key input signal from the key input unit 35 and various data signals received from the graph scientific calculator 10. Is done.

  In addition to the ROM 32, I / O port 33, RAM 34, and key input unit 35, an image output unit 36 is connected to the control unit (CPU) 31, and the current display of the graph scientific calculator 10 on the screen 37. Projection display control is performed on an image (projector transmission image received from the graph scientific calculator 10) including the screen and another screen corresponding to (related to) the current display screen.

  In such a learning information projection system in which the graph scientific calculator (small electronic device) 10 is combined with the projector 30, screen data (17 h) corresponding to a user operation is generated in each operation mode of the graph scientific calculator 10 to display the liquid crystal display. When displayed on the unit 20, the screen type (17f) corresponding to (related to) the screen type (17e) of the displayed screen data (17h) is determined based on the screen type correspondence data 12c. Then, image data (17j) for the projector in which the displayed screen data (17h) and the screen data (17in) corresponding to the determined screen type (17f) are arranged together is generated. Then, the generated image data (17j) for the projector is transmitted to the projector 30 and projected and displayed.

  Thereby, not only the screen data (for example, the function graph screen GF) displayed on the display unit 20 according to the user operation of the graph scientific calculator 10, but also other screen data (graph type screen) linked to the contents of this screen data. SF and display setting screen SH) can also be projected and displayed by projector 30 in a realistic and clear manner.

  Next, the operation of the learning information projection system in which the projector 30 is combined with the graph scientific calculator (small electronic device) 10 having the above configuration will be described.

  FIG. 6 is a flowchart showing a function graph data input / graph display process in the function graph mode of the graph scientific calculator (small electronic device) 10.

  FIG. 7 is a flowchart showing statistical graph data input / graph display processing in the statistical graph mode of the graph scientific calculator (small electronic device) 10.

  FIG. 8 is a flowchart showing projector correspondence processing repeatedly executed by interruption in each operation mode of the graph scientific calculator (small electronic device) 10.

  FIG. 9 is a diagram showing a specific example of the calculator display operation and the projector display operation associated with the projector corresponding processing in the function graph mode of the vertical graph scientific calculator (small electronic device) 10.

  When the operation mode of the graph scientific calculator 10 is set to the function graph mode in response to a user operation, the function graph data input / graph display process in FIG. 6 is activated.

  First, in order to set a coordinate range on a display screen (20) for displaying a graph, when an input operation of a display setting (View Window) is performed (Step F1), a display setting screen SH (FIG. 5) is displayed on the liquid crystal display unit 20. 9) is displayed (step F2).

  In this display setting screen SH, x-axis minimum value (xmin) / maximum value (xmax), scale, change width per display dot (dot), y-axis minimum value (ymin) / maximum value ( When ymax) and scale (scale) are input (step F3), the input display setting data is registered in the display setting data memory 17b in the DRAM 17 (step F4).

  Next, when an input operation on the graph expression screen is performed in order to input a graph expression (function expression) to be graphed (step F5), the liquid crystal display unit 20 displays the graph expression screen SF (see FIG. 9). Is displayed (step F6).

In this graph formula screen SF, when a desired graph formula (function formula) is input as, for example, [y1 = x ² ] [y2 = x] [y3 = −x] (step F7), the input graph formula The data is registered in the graph data memory 17a of the DRAM 17 (step F8).

  When an operation for instructing execution of graph drawing is performed (step F9), the display setting data (SH) stored in the display setting data memory 17b is stored in the display setting data memory 17b as shown in FIGS. 2 and 9A. A function graph screen GF on which graphs y1, y2, and y3 corresponding to the respective graph expressions (function expressions) stored in the graph expression data memory 17a are drawn on the corresponding coordinate range is displayed on the liquid crystal display unit 20. (Step F10).

  In the projector corresponding process 12b (see FIG. 8) activated by an interrupt in accordance with the function graph data input / graph display process in the function graph mode, the connection state with the projector 30 stored in the connection presence / absence memory 17d in the DRAM 17 is determined. If it is determined that there is a connection with the projector 30 based on the flag shown in FIGS. 9A and 9B (step P1 (Yes)), it is either newly connected or already connected. It is determined whether it has happened (step P2).

  If it is determined that the projector 30 is newly connected (step P2 (Yes)), the current display on the liquid crystal display unit 20 is based on the screen type data stored in the current screen type memory 17e in the DRAM 17. It is determined that the type of the displayed screen is the function graph screen (GF) (step P3).

  Then, based on the screen type correspondence data 12c1 for function graph mode stored in the ROM 12 (see FIG. 4), the types of other screens corresponding to the function graph screen GF are the graph type screen (SF) and the display setting screen ( SH) and is stored in the corresponding other screen type memory 17f (step P4).

  When it is determined that there are a graph type screen (SF) and a display setting screen (SH) as types of other screens corresponding to the function graph screen GF (step P5 (Yes)), the current screen type memory 17e. Screen type (function graph screen (GF)) stored in the screen and other screen types (graph screen (SF) and display setting screen (SH)) stored in the corresponding other screen type memory 17f. The type is set as the screen type to be transmitted to the projector 30. The other screen types (graph screen (SF) and display setting screen (SH)) are stored in the transmission other screen type memory 17g (step P6).

  Then, according to the number of screens “3” to be transmitted to the projector 30 and its screen type (function graph screen (GF), graph type screen (SF), display setting screen (SH)), it should be projected by the projector 30. The size and position of each screen on the image are set (step P8).

  The graph screen SF of each of the other screen types (graph screen (SF) and display setting screen (SH)) stored in the transmission other screen type memory 17g corresponding to the currently displayed function graph screen GF is displayed. The image and the image of the display setting screen SH are generated based on the graph type data stored in the graph type data memory 17a and the display setting data stored in the display setting data memory 17b, and the other screen 1 image memory 17i1. And stored in the other screen two-image memory 17i2 (step P9).

  Then, the image data (with red frame R) of the currently displayed function graph screen GF stored in the current screen image memory 17h, and the graph formulas stored in the other screen 1 image memory 17i1 and the other screen 2 image memory 17i2. Projector transmission image data is generated by arranging the image data of the screen SF and the image data of the display setting screen SH on one screen for the projector 30 in accordance with each screen position set in the step P8. Stored in the memory 17j. Then, the projector transmission image data stored in the transmission image data memory 17j is transmitted to the projector 30 via the I / O port 14 (step P10).

  As a result, as shown in FIGS. 9A and 9B, the function graph screen GF (displayed on the display unit 20 of the calculator 10 itself on the screen 37 of the projector 30 is displayed on the screen 37 of the projector 30. In addition to the red frame R), the graph screen SF and the display setting screen SH linked to the contents of the function graph screen GF can be projected and displayed realistically and clearly.

  In the graph scientific calculator 10 in the display state as shown in FIGS. 9A and 9B, in order to automatically enlarge and display the function graph screen GF displayed on the liquid crystal display unit 20, “Zoom” When the “Auto” input operation is performed (step F11 (Yes)), the display setting data (SH) stored in the display setting data memory 17b makes the graphs y1, y2, and y3 of the function graph screen GF constant. Changed to a value that expands the amount. A function graph screen GF ′ (see FIG. 9C) in which the respective graphs y1, y2, and y3 are enlarged and drawn corresponding to the display setting data (SH) after the change is displayed on the liquid crystal display unit 20. (Step F12).

  Here, when the projector corresponding process in FIG. 8 is activated by interruption, it is determined that the projector 30 is connected according to the flag stored in the connection presence / absence memory 17d (step P1 → P2 (No)).

  Then, based on the screen type data stored in the current screen type memory 17e, it is determined that the screen type currently displayed on the liquid crystal display unit 20 is the function graph screen (GF) (step P24), and the previous processing. From this time, it is determined that the screen type has not been changed (step P25 (No)).

  When it is determined that the “Zoom” input operation has been performed (step P11 (Yes)), it is detected that the display setting data (SH) stored in the display setting data memory 17b has been changed. (Step P12 (Yes)), the image data of the display setting screen SH ′ corresponding to the changed display setting data (SH) is generated, rewritten and stored in the other screen 2 image memory 17i2 (Step P13). ).

  Then, the image data (with red frame R) of the function graph screen GF ′ that has been automatically enlarged during the current display stored in the current screen image memory 17h, and the graphical screen stored in the other screen 1 image memory 17i1 Projector transmission image data in which the image data of SF and the image data of the changed display setting screen SH ′ stored in the other-screen two-image memory 17i2 are arranged on one screen for the projector 30 is regenerated, and the transmission image It is stored in the data memory 17j and transmitted to the projector 30 (step P14).

  As a result, as shown in FIG. 9C, not only the function graph screen GF ′ (with red frame R) automatically enlarged and displayed in response to the user operation of the graph scientific calculator 10 on the screen 37 of the projector 30. The graph screen SF and the display setting screen SH ′ linked to the contents of the enlarged function graph screen GF ′ can also be projected and displayed realistically and clearly.

  FIG. 10 is a diagram showing a specific example (part 1) of the calculator display operation and the projector display operation associated with the projector corresponding process in the statistical graph mode of the horizontal graph scientific calculator (small electronic device) 10.

  FIG. 11 is a diagram showing a specific example (part 2) of the calculator display operation and the projector display operation associated with the projector corresponding process in the statistical graph mode of the horizontal graph scientific calculator (small electronic device) 10.

  When the operation mode of the graph scientific calculator 10 is set to the statistical graph mode in response to a user operation, the statistical graph data input / graph display processing in FIG. 7 is activated.

  First, in order to set the coordinate range on the display screen (20) for displaying the graph, when an input operation of the display setting (View Window) is performed (step T1), the display setting screen SH (FIG. 10 (B2)) is displayed (step T2).

  In this display setting screen SH, x-axis minimum value (xmin) / maximum value (xmax), scale, change width per display dot (dot), y-axis minimum value (ymin) / maximum value ( When ymax) is input (step T3), the input display setting data is registered in the display setting data memory 17b in the DRAM 17 (step T4).

  Next, when a table data screen input operation is performed to input statistical (table) data to be graphed (step T5), as shown in FIGS. 3 and 10 (A1), a liquid crystal display is displayed. The table data screen LT is displayed on the part 20 (step T6).

  In this table data screen LT, when desired table data is input as, for example, [List1: 1,2,3,4] [List2: 4, -5,6,7] (step T7), it is input. The table (statistical) data is registered in the table data memory 17c1 of the DRAM 17 (step T8). When the graph scientific calculator 10 is connected to the projector 30 in the input state of the table data on the table data screen LT, as shown in FIG. 10 (B1), the table data screen LT in the input state of the table data Is read from the current screen image memory 17h, transmitted to the projector 30 as it is, and projected and displayed on the screen 37.

  Further, when an input operation is performed on the statistics setting screen in order to set the analysis form of the table (statistical) data (step T9), the statistics setting screen ST (see FIG. 10B2) is displayed on the liquid crystal display unit 20. It is displayed (step T10).

  In this statistical setting screen ST, when statistical setting data of a desired analysis form is input as, for example, [Graph Type: Cubic (third order regression)] [X List: List1] [Y List: List2] [Frequency: 1] (Step T11) The inputted statistical setting data is registered in the statistical setting data memory 17c2 of the DRAM 17 (step T12).

  Here, when an operation to instruct execution of graph drawing is performed, the table data (LT) stored in the table data memory 17c1 is analyzed according to the statistics setting data (ST) stored in the statistics setting data memory 17c2. The graph y is drawn according to the coordinate range corresponding to the display setting data (SH) stored in the display setting data memory 17b. Then, as shown in FIG. 10A2, the statistical graph screen GT on which the graph y is drawn is displayed on the liquid crystal display unit 20 (step T13).

  In the projector correspondence process 12b (see FIG. 8) that is activated by an interrupt in accordance with the statistical graph data input / graph display process in the statistical graph mode, the connection state with the projector 30 stored in the connection presence / absence memory 17d in the DRAM 17 is determined. If it is determined that the projector 30 is connected to the projector 30 as shown in FIGS. 9A2 and 9B2 based on the flag shown (step P1 → (No)), it is stored in the current screen type memory 17e in the DRAM 17. The screen type currently displayed on the liquid crystal display unit 20 is determined to be the statistical graph screen (GT) based on the screen type data (step P24).

  Then, since it is determined that the screen type has been changed from the table data screen LT shown in FIG. 10A1 to the current statistical graph screen GT (step P25 (Yes)), the statistical graph mode stored in the ROM 12 is determined. Based on the screen type correspondence data 12c2 (see FIG. 4), the other screen types corresponding to the statistical graph screen GT are the table data screen (LT), the display setting screen (SH), and the statistical setting screen (ST). It is determined and stored in the corresponding other screen type memory 17f (step P4).

  When it is determined that there are a table data screen (LT), a display setting screen (SH), and a statistical setting screen (ST) as the types of other screens corresponding to the statistical graph screen GT (step P5 (Yes)). The screen type (statistical graph screen (GT)) stored in the current screen type memory 17e and the other screen types (table data screen (LT) and display setting screen (SH) stored in the corresponding other screen type memory 17f. ) And the statistical setting screen (ST)) are set as screen types to be transmitted to the projector 30. The other screen types (table data screen (LT), display setting screen (SH), and statistics setting screen (ST)) are stored in the transmission other screen type memory 17g (step P6).

  Then, according to the number of screens “4” to be transmitted to the projector 30 and their screen types (statistical graph screen (GT), table data screen (LT), display setting screen (SH), statistical setting screen (ST)). Then, the size and position of each screen on the image to be projected by the projector 30 are set (step P8).

  The other screen types (table data screen (LT), display setting screen (SH), and statistics setting screen (ST)) stored in the transmission other screen type memory 17g corresponding to the currently displayed statistical graph screen GT. Each table data screen LT image, display setting screen SH image, and statistics setting screen ST image includes table data stored in the table data memory 17c1 and display setting data stored in the display setting data memory 17b. It is generated based on the statistical setting data stored in the statistical setting data memory 17c2, and stored in the other screen 1 image memory 17i1 to the other screen 3 image memory 17i3 (step P9).

  Then, the image data (with red frame R) of the currently displayed statistical graph screen GT stored in the current screen image memory 17h and the table data stored in the other screen 1 image memory 17i1 to the other screen 3 image memory 17i3. The projector transmission image in which the image data of the screen LT, the image data of the display setting screen SH, and the image data of the statistical setting screen ST are arranged on one screen for the projector 30 in accordance with each screen position set in step P8. Data is generated, stored in the transmission image data memory 17j, and transmitted to the projector 30 (step P10).

  Accordingly, as shown in FIGS. 10A2 and 10B2, the statistical graph screen GT (displayed on the display unit 20 of the calculator 10 itself on the screen 37 of the projector 30 is displayed on the screen 37 of the projector 30. In addition to the red frame R), the table data screen GT, the display setting screen SH, and the statistical setting screen ST linked to the contents of the statistical graph screen GT can be projected and displayed realistically and clearly. it can.

  In the graph scientific calculator 10 in the display state as shown in FIGS. 10A2 and 10B2, in order to automatically enlarge and display the statistical graph screen GT displayed on the liquid crystal display unit 20, "Zoom" When the “Auto” input operation is performed (step T14 (Yes)), the display setting data (SH) stored in the display setting data memory 17b is set to a value that expands the graph y on the statistical graph screen GT by a certain amount. Be changed. Then, a statistical graph screen GT ′ obtained by enlarging and drawing the graph y corresponding to the changed display setting data (SH) is displayed on the liquid crystal display unit 20 (step T15).

  Here, when the projector corresponding process in FIG. 8 is activated by an interrupt, and it is determined that the “Zoom” -type input operation has been performed, as in the “Zoom Auto” input operation in the function graph mode described above. (Step P11 (Yes)), it is detected that the display setting data (SH) stored in the display setting data memory 17b has been changed (Step P12 (Yes)), and the changed display setting data (SH) ) Corresponding to the display setting screen SH ′ is generated, rewritten and stored in the other screen two-image memory 17i2 (step P13).

  Then, the image data (with a red frame R) of the statistical graph screen GT ′ that has been automatically enlarged during the current display stored in the current screen image memory 17h, and the table data screen stored in the other screen 1 image memory 17i1. The image data of LT, the image data of the changed display setting screen SH ′ stored in the other screen two-image memory 17i2, and the image data of the statistical setting screen ST stored in the other screen three-image memory 17i3 The projector transmission image data arranged on one screen for 30 is regenerated, stored in the transmission image data memory 17j, and transmitted to the projector 30 (step P14).

  As a result, the screen 37 of the projector 30 is automatically enlarged according to the user operation of the graph scientific calculator 10 in the same manner as the enlarged display of the function graph screen GF in the function graph mode (see FIG. 9C). In addition to the statistical graph screen GT ′ (with a red frame R), the table data screen LT, the display setting screen SH ′, and the statistical setting screen ST linked to the contents of the expanded statistical graph screen GT ′ are also included. Therefore, it is possible to project and display realistically and clearly.

  Further, when it is determined that another screen change operation (decrease) has been made in response to an operation input of the [Shift] + [↓] key on the keyboard 18 for reducing and changing the number of other screens to be displayed on the projector 30. (Step P15 (Yes)), three other screen types to be transmitted to the projector 30 stored in the transmission other screen type memory 17g (table data screen (LT), display setting screen (SH), statistical setting screen ( ST)) is reduced to one predetermined other screen type (display setting screen (SH)) and changed (step P16).

  Then, the currently displayed screen type (statistical graph screen (GT)) stored in the current screen type memory 17e and one other screen type (display setting screen) that is stored after being reduced and stored in the transmission other screen type memory 17g. (SH)), the image to be projected by the projector 30 according to the number of screens “2” to be transmitted to the projector 30 and the screen type (statistical graph screen (GT), display setting screen (SH)). The size and position of each screen above are set (step P8).

  Then, an image of the display setting screen SH of the other screen type (display setting screen (SH)) stored in the transmission other screen type memory 17g is generated based on the display setting data stored in the display setting data memory 17b. The other screen 1 image memory 17i1 is stored (step P9).

  Then, the image data (with a red frame R) of the currently displayed statistical graph screen GT stored in the current screen image memory 17h and the image data of the display setting screen SH stored in the other screen 1 image memory 17i1 are stored. The projector transmission image data arranged on one screen for the projector 30 is generated according to each screen position set in step P8, stored in the transmission image data memory 17j, and transmitted to the projector 30 (step P10). ).

  Thus, as shown in FIGS. 11A3 and 11B3, the statistical graph screen GT () displayed on the display unit 20 of the calculator 10 itself on the screen 37 of the projector 30 is displayed on the screen 37 of the projector 30. (With a red frame R) and the table data screen GT linked to the contents of the statistical graph screen GT, the display setting screen SH, and the display setting screen SH of the statistical setting screen ST can be projected and displayed together. it can.

  Thereafter, if it is determined that another screen change operation (decrease) has been made in response to the operation input of the [Shift] + [↓] key on the keyboard 18 (step P15 (Yes)), the transmission other screen type memory One other screen type (display setting screen (SH)) currently stored in 17g is reduced to “0” and changed (step P16).

  Then, through the same processing as described above, projector transmission image data in which only the image data (with red frame R) of the currently displayed statistical graph screen GT stored in the current screen image memory 17h is arranged on one screen for the projector 30. Is stored in the transmission image data memory 17j and transmitted to the projector 30 (steps P8 to P10).

  As a result, as shown in FIGS. 11A4 and 11B4, the statistical graph screen GT (displayed on the display unit 20 of the calculator 10 itself on the screen 37 of the projector 30 is displayed on the screen 37 of the projector 30. Only the red frame R) can be projected and displayed.

  Here, for example, when it is determined that another screen change operation (increase) has been performed in response to an operation input of the [Shift] + [↑] key on the keyboard 18 (step P15 (Yes)), the transmission other screen type memory 17g. The number of other screen types stored in is increased and changed (step P16), and as shown in FIGS. 11A3 and 11B3, the graph scientific calculator 10 currently displays the screen 37 of the projector 30. Two screens including the display setting screen SH on the statistical graph screen GT can be displayed again (steps P8 to P10).

  Thereafter, if it is determined that another screen change operation (increase) has been performed in accordance with the operation input of the [Shift] + [↑] key (step P15 (Yes)), the same processing is performed (step P16). → P8 to P10) On the screen 37 of the projector 30, as shown in FIGS. 10 (A2) and (B2), the statistical graph screen GT currently displayed on the graph scientific calculator 10 is replaced with the table data screen LT, Four screens including the display setting screen SH and the statistics setting screen ST can be displayed again.

  FIG. 12 is a diagram showing a specific example (part 1) of the calculator display operation and the projector display operation associated with the projector corresponding processing in the function graph mode of the horizontal graph scientific calculator (small electronic device) 10.

  FIG. 13 is a diagram showing a specific example (part 2) of the calculator display operation and the projector display operation associated with the projector corresponding process in the function graph mode of the horizontal graph scientific calculator (small electronic device) 10.

In accordance with the function graph data input / graph display processing in the function graph mode (see FIG. 6), the display setting screen SH is displayed and the display setting data (xmin: -6.3 / xmax: 6.3 / scale: 1 / dot: 0.1 / ymin) : -3.1 / ymax: 3.1) and register (steps F1 to F4), then display the graph formula screen SF and enter and register the desired graph formula [y1 = x ² -4] (Steps F5 to F8), the execution of graph drawing is instructed (Step F9).

Then, as shown in FIG. 12 (A1), a function graph screen in which a graph y1 corresponding to the graph equation [y1 = x ² -4] is drawn for the coordinate range corresponding to the display setting data (SH). GF is displayed on the liquid crystal display unit 20 (step F10).

  Here, when the projector corresponding process in FIG. 8 is activated by interruption, the image data (red) of the currently displayed function graph screen GF stored in the current screen image memory 17h through the processes of Steps P1 to P10 described above. Frame R), the image data of the graphic screen SF and the image data of the display setting screen SH stored in the other screen 1 image memory 17i1 and the other screen 2 image memory 17i2 are arranged on one screen for the projector 30. Projector transmission image data is generated and transmitted to the projector 30 (step P10).

  Thus, as shown in FIGS. 12A1 and 12B1, the function graph screen GF () displayed on the display unit 20 of the calculator 10 itself on the screen 37 of the projector 30 is displayed on the screen 37 of the projector 30. In addition to the red frame R), the graph screen SF and the display setting screen SH linked to the contents of the function graph screen GF can be projected and displayed realistically and clearly.

  Here, as shown in FIG. 12 (A2), when the screen being displayed on the graph scientific calculator 10 is switched to the graph screen SF in response to a user operation, it is determined that the screen type being displayed has been changed. Thus (step P25 (No)), the projector transmission image data with the red frame R added to the image data of the graph screen SF is regenerated and transmitted to the projector 30 (steps P4 to P10).

  As a result, as shown in FIG. 12 (B2), on the screen 37 of the projector 30, the graph screen SF switched and displayed on the calculator 10 has a red frame R and is a function graph linked to the graph screen SF. It is displayed together with the screen GF and the display setting screen SH.

  Further, as shown in FIG. 13 (A3), when the screen being displayed on the graph scientific calculator 10 is switched to the display setting screen SH in response to a user operation, the screen type being displayed is changed as described above. As a result of the determination (step P25 (No)), the projector transmission image data in which the image data of the display setting screen SH has a red frame R is regenerated and transmitted to the projector 30 (steps P4 to P10).

  As a result, as shown in FIG. 13 (B3), the screen 37 of the projector 30 has a display setting screen SH switched and displayed on the calculator 10 with a red frame R, and a function graph linked to the display setting screen SH. It is displayed together with the screen GF and the graph type screen SF.

  Therefore, in correspondence with the switching of the screen type in the graph scientific calculator 10, it is possible to clearly recognize which screen is displayed on the calculator 10 side among the plurality of screens displayed on the projector 30. .

Next, in the graph scientific calculator 10 in the display state as shown in FIGS. 12A1 and 12B1, the intercept of the graph y1 on the function graph screen GF displayed on the liquid crystal display unit 20 is obtained and displayed. When the input operation of “Solve y-axis intercept [ICPT]” is performed (step F13 (Yes)), based on the graph formula [y = x ² -4] stored in the graph formula data memory 17a The y-axis intercept is calculated, and the intercept coordinate value [x = 0, y = -4] is added and displayed on the function graph screen GF as shown in FIG. 13 (A4). At this time, when the determined position of the intercept coordinates [x = 0, y = -4] is included in the coordinate range of the function graph screen GF, the position of the intercept coordinates [x = 0, y = -4] The pointer P is displayed at (Step F14).

  In the coordinate range (xmin: −6.3 to xmax: 6.3 / ymin: −3.1 to ymax: 3.1) of the function graph screen GF shown in FIG. 13 (A4), the above solution is obtained as shown in the range a. Since the intercept coordinates [x = 0, y = -4] are not included, the pointer P indicating the intercept coordinates is not displayed.

  Here, when the projector corresponding process in FIG. 8 is activated by interruption and it is determined that the “Solve” type input operation has been performed (step P17 (Yes)), the solved intercept coordinates [x = 0, It is determined whether or not y = -4] is included in the function graph screen GF (step P18).

  Then, as shown in FIG. 13A4, when it is determined that the obtained intercept coordinates [x = 0, y = -4] are not included in the screen of the function graph screen GF (step P18). (No)), the coordinate range (xmin: −6.3 to xmax: 6.3 / ymin: −3.1 to ymax: 3.1) of the display setting data on the current function graph screen GF is the intercept coordinates [x = 0, The coordinate range including y = -4] (for example, xmin: -6.3 to xmax: 6.3 / ymin: -4.5 to ymax: 2.5) is changed (step P19).

  Then, the function graph screen GF currently displayed (see FIG. 13 (A4)) dedicated to the projector 30 is corrected to the function graph screen GFp corresponding to the coordinate range of the changed display setting data, and the solution is obtained. A pointer P indicating the intercept coordinates [x = 0, y = -4] is added, and image data of the corrected function graph screen GFp is generated (step P20).

  Further, image data of the display setting screen SHp corresponding to the changed display setting data is generated (step P21).

  Then, the image data of the corrected function graph screen GFp generated in Step P20 (with a red frame R in a range corresponding to the currently displayed function graph screen GF) and the change generated in Step P21 Projector transmission image data in which the image data of the subsequent display setting screen SHp and the image data of the graphic screen SF stored in the other screen 1 image memory 17i1 are arranged on one screen for the projector 30 is regenerated and transmitted. It is stored in the image data memory 17j and transmitted to the projector 30 (step P22).

  Thereby, even if the position of the solved intercept coordinates [x = 0, y = -4] is not included in the range of the function graph screen GF displayed on the liquid crystal display unit 20 of the graph scientific calculator 10, On the screen 37 of the projector 30, a function graph screen GFp with a pointer P indicating the intercept coordinates [x = 0, y = -4] is projected and displayed as shown in a range a in FIG. At the same time, a graph type screen SF and a display setting screen SHp linked to the contents of the function graph screen GFp are also projected and displayed.

  On the other hand, if it is determined in step P18 that the determined intercept coordinates are included in the coordinate range of the function graph screen GF that is currently displayed (step P18 (Yes)), the current display is being performed. The image data (with red frame R) of the function graph screen GF to which the pointer P of a certain intercept coordinate is added, the image data of the display setting screen SH stored in the other screen 2 image memory 17i2, and the other screen 1 image memory 17i1. Projector transmission image data in which the stored image data of the graph type screen SF is arranged on one screen for the projector 30 is regenerated and transmitted to the projector 30 (step P23).

  In the description of the projector corresponding process in steps P17 to P23, a specific example in which the y-axis intercept is obtained according to the processes of steps F13 and F14 in the function graph data input / graph display process has been described. Even when the maximum value is found according to the processing of steps F15 and F16, or when the minimum value, root, etc. are found according to other processing, the screen 37 of the projector 30 is followed according to the same projector correspondence processing (steps P17 to P23). Can display a function graph screen GFp (GF) to which a pointer P indicating the found coordinates is added.

  If it is determined in step P5 in the projector corresponding process that there is no other screen type corresponding to the currently displayed screen type (step P5 (No)), it is stored in the current screen type memory 17e. Only one screen type is set as the screen type to be transmitted to the projector 30 (step P7).

  Projector transmission image data in which image data (with a red frame R) of the currently displayed screen stored in the current screen image memory 17 h is arranged as it is on one screen for the projector 30 is generated and transmitted to the projector 30. (Steps P8 to P10).

  Therefore, according to the learning information projection system in which the projector 30 is combined with the graph scientific calculator (small electronic device) 10 having the above configuration, for example, in the function graph mode, the display setting data for setting the coordinate range of the graph display and the desired graph formula When the function graph screen GF on which the graph corresponding to the graph expression is drawn is displayed on the display unit 20, it is displayed according to the screen type correspondence data 12c1, 12c2,. Other screen types (graph screen and display setting screen) corresponding to the selected screen type (function graph screen) are determined. Then, projector transmission image data in which the image of the graph screen SF and the display setting screen SH of the determined corresponding screen type together with the function graph screen GF currently displayed is arranged for the projector 30 is generated and transmitted to the projector 30. Then, it is projected and displayed on the screen 37.

  For this reason, not only the function graph screen GF displayed on the display unit 20 of the calculator 10 itself according to the user operation of the graph scientific calculator 10, but also the graph formula screen SF linked to the contents of the function graph screen GF and the display. The setting screen SH can also be projected and displayed in a realistic and clear manner.

  Further, according to the learning information projection system having the above configuration, an identification mark such as a red frame R is added to the image of the screen currently displayed on the calculator 20 itself included in the projector transmission image data to the projector 30. Therefore, among the plurality of screens displayed on the projector 30, the screen currently displayed on the calculator 10 and the corresponding other screen can be clearly identified and recognized.

  Moreover, according to the learning information projection system having the above-described configuration, when the screen type of the screen currently displayed on the display unit 20 is changed to another screen type, each time another screen type corresponding to the changed screen type is changed. Since the screen type is determined, the projector transmission image data is regenerated, transmitted to the projector 30, and projected and displayed. Therefore, other screens linked to the screen appropriately changed by processing on the calculator 10 side are always displayed on the projector 30. Can be displayed on the screen.

  According to the learning information projection system having the above configuration, the number of screens of other screen types included in the projector transmission image data is reduced according to the operation of the [Shift + ↓] key, and [Shift + ↑ ] Increase processing is performed according to the key operation, and the number of other screen data projected and displayed by the projector 30 can be increased or decreased as appropriate, so that the screen displayed on the calculator 10 side can be handled as necessary. Only the screen can be selectively displayed.

  Furthermore, according to the learning information projection system having the above-described configuration, when the characteristic points such as the intercept, the maximum value, the minimum value, and the root of the graph expression are obtained in the display state of the function graph screen GF in the graph scientific calculator 10, If the coordinates of the found feature point are not included in the coordinate range of the function graph screen GF being displayed, the coordinates of the feature point are corrected to the function graph screen GFp of the coordinate range containing the found feature point coordinates. A pointer P is added to the coordinates. Then, projector transmission image data including the corrected function graph screen GFp and a screen corresponding to the correction screen GFp is regenerated and transmitted to the projector 30.

  Therefore, even if the position of the found feature point is not included in the function graph screen GF displayed on the graph scientific calculator 10, the feature point is indicated by the pointer P on the screen 37 of the projector 30. The function graph screen GFp and other screens linked to the contents of the function graph screen GFp can be displayed together.

  In the above-described embodiment, the operation examples in the function graph mode and the statistical graph mode have been mainly described. However, it is a matter of course that the same projector correspondence processing can be performed in other operation modes.

  It should be noted that each processing method by the learning information projection system in which the projector 30 is combined with the graph scientific calculator (small electronic device) 10 described in each embodiment, that is, function graph data input / graph display processing shown in the flowchart of FIG. Each method such as statistical graph data input / graph display processing shown in the flowchart of FIG. 7 and projector correspondence processing shown in the flowchart of FIG. 8 is a memory card (ROM card, RAM, etc.) as a program that can be executed by a computer. Card), a magnetic disk (floppy disk, hard disk, etc.), an optical disk (CD-ROM, DVD, etc.), an external storage medium (13) such as a semiconductor memory, and the like. The computer terminal, which is a variety of electronic devices such as a small electronic calculator, a small PC, a PDA, and a mobile phone that can be connected to the projector 30, stores the program stored in the external storage medium (13) in the internal memory (12). And the operation is controlled by the read program, thereby realizing a function of transmitting an image including the calculator (electronic device) screen and the interlocking screen described in the above embodiments to the projector 30. A similar process can be executed by the method described above.

  Further, program data for realizing each of the above methods can be transmitted on a communication network (Internet) N as a program code form, and a computer terminal (program server) connected to the communication network (Internet) N ) The program data can be fetched from 16 and the function of transmitting the image including the calculator (electronic device) screen and its interlocking screen to the projector 30 can be realized.

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the column “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

10 ... Graph scientific calculator (small electronic equipment)
11: Calculator-side control unit (CPU)
12 ... Calculator ROM
12a ... Basic processing program 12b ... Projector compatible processing program 12c ... Screen type compatible data 13 ... Memory card (external storage medium)
14: Calculator I / O port (communication means)
15 ... External PC
16 ... Web server 17 ... Calculator side DRAM
17a ... Graphic data memory 17b ... Display setting data memory 17c1 ... Table data memory 17c2 ... Statistic setting data memory 17d ... Connection presence / absence memory 17e ... Current screen type memory 17f ... Supported other screen type memory 17g ... Transmission other screen type memory 17h ... Current screen image memory 17in ... other screen n image memory 17j ... transmission image memory 18 ... calculator side keyboard 19 ... liquid crystal drive circuit 20 ... liquid crystal display unit (LCD)
30 ... Projector 31 ... Projector side control unit (CPU)
32 ... Projector ROM
33 ... Projector side I / O port (communication means)
34. Projector side RAM
35 ... Projector side key input unit 36 ... Image output unit 37 ... Screen GF ... Function graph screen GF '... Function graph screen after "Zoom" GFp ... Function graph screen after changing the coordinate range SF ... Graph type screen SH ... Display setting Screen SH '… Display setting screen after “Zoom” R… Red frame display LT… Table data screen GT… Statistics graph screen ST… Statistics setting screen

Claims (6)

An electronic device having a display unit and a connection function with a display device,
Data processing means for processing data in response to a user operation;
Screen type correspondence storage means for storing the screen types of a plurality of types of screen data each having a correspondence acquired in accordance with data processing by the data processing means in association with each other;
Processing screen display control means for causing the display unit to display screen data acquired in accordance with data processing by the data processing means;
Corresponding screen type determining means for determining another screen type corresponding to the screen type of the screen data displayed on the display unit by the processing screen display control means based on each screen type stored by the screen type correspondence storing means; ,
Corresponding other screen acquisition means for acquiring screen data of another screen type determined by the corresponding screen type determination means based on data processing by the data processing means,
Image transmission means for transmitting an image composed of the screen data displayed by the processing screen display control means and the screen data of another screen type acquired by the corresponding other screen acquisition means, to the display device;
An electronic device characterized by comprising:   The image to be transmitted to the display device by the image transmitting unit is arranged on one screen with the screen data displayed by the processing screen display control unit and the screen data of another screen type acquired by the corresponding other screen acquiring unit. The electronic apparatus according to claim 1, wherein the screen data displayed by the processing screen display control unit is identified in the image. A screen type change determining means for determining that the screen type of the screen data displayed on the display unit has been changed by the processing screen display control means;
Whenever it is determined by the screen type change determining means that the screen type of the screen data displayed on the display unit has been changed, the corresponding screen type determining means determines another screen type, and the corresponding other screen acquiring means Screen type change control means for executing acquisition of screen data of another screen type, transmission of an image to the display device by the image transmission means,
The electronic apparatus according to claim 1, further comprising: A screen change instruction means for instructing a change in the number of screen data of other screen types included in the image in accordance with a user operation after transmission of the image to the display device by the image transmission means;
Each time the change of the number of screen data of another screen type is instructed by the screen change instructing means, the corresponding other screen acquiring means performs another process according to the number of screen data of the other screen type instructed. Screen number change control means for executing acquisition of screen type screen data and transmission of an image to the display device by the image transmission means;
The electronic apparatus according to any one of claims 1 to 3, further comprising: The data processing means includes a graph drawing means for drawing a graph corresponding to the function expression based on the data of the function expression to be graphed and the display setting data for setting the display range of the graph input in response to a user operation. Have
The screen type correspondence storage means stores a screen of a function expression acquired in accordance with data processing by the graph drawing means, a display setting screen, and a screen type of a graph in association with each other. Having corresponding storage means;
The processing screen display control means has a function graph screen display control means for causing the display unit to display a graph screen acquired in accordance with data processing by the graph drawing means,
Feature point calculation instruction means for instructing calculation of feature points in the functional equation in response to a user operation after transmission of an image to the display device by the image transmission means;
In response to an instruction from the feature point calculation instruction unit, a feature point calculation unit that calculates a feature point of the functional expression;
Feature point determination means for determining whether or not the feature point of the functional expression calculated by the feature point calculation means is included in the display range of the graph set by the display setting data;
A screen of the graph displayed by the display control means of the function graph screen when it is determined by the feature point determination means that the feature points of the function formula are included in the display range of the graph set by the display setting data And regenerating an image composed of the screen data with the feature points added therein, the screen data of the functional expression acquired by the corresponding other screen acquisition means, and the screen data of the display setting, and transmitting the image to the display device. 1 regenerated image transmission means;
When the feature point determining means determines that the feature point of the functional expression is not included in the graph display range set by the display setting data, the feature point includes the set graph display range. Display setting changing means for changing the display range to
A graph screen correcting means for correcting the screen of the graph displayed by the display control means of the function graph screen according to the display range of the graph changed by the display setting changing means;
The screen data obtained by adding the feature points to the screen of the graph whose display range has been corrected by the graph screen correcting means, the function formula screen data acquired by the corresponding other screen acquiring means, and the display setting changing means Second regenerated image transmission means for regenerating an image composed of the display setting screen data and transmitting the image to the display device;
The electronic apparatus according to claim 1, further comprising: A program for controlling a computer of an electronic device having a connection function with a display device and having a display unit,
The computer,
Data processing means for processing data in response to a user operation;
Screen type correspondence storage means for associating and storing in the memory screen types of a plurality of types of screen data each having a corresponding relationship acquired in accordance with data processing by the data processing means;
Processing screen display control means for displaying screen data acquired in accordance with data processing by the data processing means on the display unit;
Corresponding screen type determining means for determining another screen type corresponding to the screen type of the screen data displayed on the display unit by the processing screen display control means based on each screen type stored by the screen type correspondence storing means,
Corresponding other screen acquisition means for acquiring screen data of another screen type determined by the corresponding screen type determination means based on data processing by the data processing means,
Image transmission means for transmitting an image composed of the screen data displayed by the processing screen display control means and the screen data of another screen type acquired by the corresponding other screen acquisition means to the display device;
A computer-readable program designed to function as a computer.

Images