WO2019160047A1 - Electronic device, electronic device control method and program - Google Patents

Abstract

In this electronic device provided with a memory and a processor, the processor presents a question in an approval mode transitioned from a normal mode by operating a plurality of keys at the same time, receives, from an operator, an answer to the presented question, transitions to the normal mode when the answer from the operator matches a correct answer to the question, and transitions to a particular function mode from the approval mode when the answer matches a passcode different from the correct answer to the question.

Description

Electronic device, control method and program for electronic device

The present invention relates to an electronic device, an electronic device control method, and a program.

A technique has been proposed in which logging data can be used as an input simulation as it is, so that it does not require manual input operation again and the input operation at the place of use is reproduced. (For example, Patent Document 1)

Japanese Unexamined Patent Publication No. 63-193217

In various data processing devices having a keyboard and a display unit, including the technique described in Patent Document 1, for example, a calculator, a smartphone, a personal computer, etc. The special function mode (for example, inspection mode, service, etc.) for executing a special function of the product by a predetermined key operation that is not described by the general user, for example, a simultaneous operation of a plurality of preset keys. There are some which can execute a special function based on a special program which is approved to shift to a man mode etc. and is registered in a part of an internal operation program. In the inspection mode, the inspection can be executed before or after the product is shipped based on an inspection program registered in advance in a part of the internal operation program.

However, for some reason, the user has grasped the method of shifting to the special function mode by key operation, and the user has executed a special function.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic device that can be controlled so as not to execute a special function easily, a control method for the electronic device, and a program There is.

An electronic apparatus according to an aspect of the present invention includes a memory and a processor. The processor presents a question in an approval mode, receives a response to the presented question from an operator, and receives a response from the operator. However, if it matches the correct answer to the question, the mode shifts to a mode different from the special function mode.

According to the present invention, it is possible to easily perform control so as not to execute the special function.

1 is a front view illustrating an external configuration of a scientific calculator according to a first embodiment of the invention. The block diagram which shows the function structure of the electronic circuit of the scientific calculator which concerns on the same embodiment. The flowchart which shows the processing content at the time of the approval mode which concerns on the embodiment. The figure which illustrates the display contents in the display part concerning the embodiment. The figure which illustrates the transition of the display content in the display part at the time of all the inspection modes which concern on the embodiment. The figure which illustrates the transition of the display content in the display part at the time of the simple test | inspection mode which concerns on the same embodiment. The block diagram which shows the function structure of the electronic circuit of the scientific calculator which concerns on the 2nd Embodiment of this invention. The flowchart which shows the processing content at the time of the approval mode which concerns on the embodiment. The figure which illustrates the transition of the display content in the display part at the time of the special function control mode transfer which concerns on the embodiment. The figure which illustrates the transition of the display content in the display part at the time of all the inspection modes which concern on the embodiment. The figure which illustrates the transition of the display content in the display part at the time of all the inspection modes which concern on the embodiment.

[First Embodiment]
A scientific calculator is an example of an electronic device. Hereinafter, as an explanation of an electronic device, a control method of the electronic device, and a program, a first embodiment when the present invention is applied to a scientific calculator will be described in detail with reference to the drawings.
FIG. 1 is a plan view showing an external configuration of a scientific calculator 10 according to the present embodiment. In the figure, a key input unit 11, a display unit (display) 16, and a solar panel 17 are provided on the front surface of the main body.

The key input unit 11 is used to input numerical values and mathematical expressions, or to input numerical / arithmetic symbol keys 12 for instructing the execution of calculations, function function keys 13 for inputting various functions and starting memory functions, Mode setting key group 14 for instructing display of various operation mode menu screens and setting of operation modes, moving operation of cursor displayed on display unit 16 in setting operation of mode setting key group 14, calling of calculation formula, A cursor key 15 for performing a data item selection operation and the like is provided.

The numeric / arithmetic symbol key group 12 includes [0] to [9] (numeric) keys, [+] [−] [×] [÷] (four symbols) keys, [Ans] keys, [=] (execute) Key, an [AC] (clear) key for instructing clearing, and the like.

The function function key group 13 includes [x ^-1 ] (reciprocal) key, [nCr] (combination) key, [Pol (] (polar coordinate) key, [x ³ ] (cubic) key, and other function functions. Provide a key.

The mode setting key group 14 includes [SHIFT] (shift) key, [ALPHA] (alphabet) key, [MODE CLR] (mode clear) key, [ON] (power on) key, and the like.

The display unit 16 is composed of a reflective liquid crystal display panel. The uppermost row is a fixed segment display row such as [D] [SCI], and the second row is 6 dots long × 5 dots wide × 12. A dot matrix row of digits, a third row is a numeric display row with an 8-character segment of 10 digits of numerical value + 2 digits of exponent part, and the like. The display unit 16 displays the operation result of the input key from the operator who is an inspector.

The solar panel 17 is a solar cell panel that generates part or all of the operating power of the scientific calculator 10. Although not shown, the scientific calculator 10 is equipped with a replaceable dry battery separately from the solar panel 17, and the amount of external light around the scientific calculator 10 is small. When power cannot be provided, power can be supplied by the attached dry battery.

Although not shown, the scientific calculator 10 is formed with a card slot for inserting / removing a memory card and a communication terminal, for example, a USB terminal, for communicating with an external device. It shall be.

FIG. 2 is a block diagram showing a functional configuration of the electronic circuit of the scientific calculator 10.

The electronic circuit of the scientific calculator 10 is mainly composed of a processor 21 such as a CPU (Central Processing Unit), and via a bus B, a memory 22, a recording medium interface 24, a display unit 16, a key input unit 11, and a communication unit. 25 is connected.
The processor 21 performs calculation according to an input operation performed when the operator appropriately presses the numerical / arithmetic symbol key group 12 or the function function key group 13.

The memory 22 includes a ROM in which operation programs executed by the processor 21 built in the scientific calculator (electronic device) 10 and fixed data are stored in a nonvolatile manner, and a RAM that expands and holds various data read from the ROM. The calculator control program 22a, the display control program 22b, and the special function control program 22c are stored, and the input program area 22d and the work area 22e are secured.

The calculator control program 22a is an operation program stored in the ROM that executes various calculation processes including function calculation in the normal mode.

The display control program 22b is an operation program stored in the ROM that controls display contents on the display unit 16 in the normal mode.

The special function control program 22c is an operation program stored in the ROM that is executed when the normal mode is shifted to the special function mode, and more specifically, a control program in a simple inspection mode (step S105) described later, A control program in all inspection modes (step S107) and a control program in display contrast adjustment processing mode (step S109) are provided.

The input program area 22d is an area in the RAM that stores an additional program or the like to be described later when input from the outside.

The work area 22e is an area in the RAM that temporarily stores programs and data when the processor 21 executes program processing.

The recording medium interface 24 is an interface connected to the recording medium 23 in order to read data such as an additional program from the recording medium 23 such as a memory card attached to the scientific calculator 10 via the card slot CS. The read data such as the additional program is stored in the input program area 22d of the memory 22 via the bus B under the control of the processor 21.

As described above, the communication unit 25 can be connected to an external network (NW) by connecting to an external device such as a personal computer via a communication terminal such as a USB terminal or by wireless connection using a wireless LAN. Thus, transmission and reception of necessary data, for example, data when the scientific calculator 10 is upgraded is performed.

Next, the operation of the embodiment will be described. In the subsequent steps, the processor 21 executes processes and determinations other than those specified specifically.

FIG. 3 is a flowchart showing the processing contents in the approval mode stored in the special function control program 22c of the memory 22.

At the time of operation of the scientific calculator 10 in the normal mode before shipment, an operator who is an inspector uses a predetermined plurality of keys, for example, [[] of the mode setting key group 14 as an approval passcode key for shifting to the approval mode. By simultaneously operating a total of three keys, the [SHIFT] key and the [ON] key, and the [5] key of the numerical / arithmetic symbol key group 12, the mode is shifted to the approval mode. The approval passcode key is not limited to the above three keys, and may be two keys or four or more keys, for example.

The processor 21 waits for the transition to the approval mode by repeatedly determining whether or not the three keys are simultaneously operated in the normal mode (step S101).

If it is determined that the three keys are simultaneously operated (Yes in step S101), the processor 21 shifts to an approval mode.

In the approval mode, the processor 21 selects one from a plurality of simple questions prepared in advance by the special function control program 22c, either randomly or periodically, and displays it on the dot matrix row of the display unit 16 (step S103). ).

The question includes operators (for example, +,-, x, ÷) and numerical values. ] Is a question type mathematical expression (equal expression) or inequality having a right side on which is displayed, and the calculation formula is stored as data in the memory 22. An equation (equation) or inequality is, for example, [3-2 =? ], [1 + 1 =? ], [2 + 1 =? ], [5-1 =? ], Different patterns are prepared. The correct answer to each question satisfies mathematical expressions (equals) or inequalities (hereinafter collectively referred to as “expressions”) of different patterns, and [1], [2], [3], [4], respectively. ] Is different. The special function control program 22c includes, as data, a plurality of pass codes for shifting to the special function control mode, a plurality of correct answers having different values from the plurality of pass codes, and a plurality of questions corresponding to the plurality of correct answers. Are stored in advance, and the passcode can be input by the operator through key operation of the key input unit 11.

4 shows the question [3-2 =? In the dot matrix row of the display unit 16 in the approval mode. ] Is displayed as an example. Here, the correct answer to the question is the numerical value 1. The correct input key is set so that it does not coincide with any of the passcode keys set in advance for shifting to the simple inspection mode, all inspection mode, and contrast adjustment mode, which are special function control modes.

The processor 21 accepts a response to the question from the state in which the question is displayed in step S103 by a key input from the operator at the key input unit 11. Whether or not the operated key is the first passcode key (for example, [8] key) of the numerical / arithmetic symbol key group 12 set in advance to be different from the correct answer of the displayed question (step 8) S104), a second passcode key (for example, [9]) set in advance to be different from the correct answer of the displayed question and different from the first passcode key in the numerical / arithmetic symbol key group 12 in the same manner. Key) (step S106), a third passcode key that is set in advance to be different from the correct answer of the displayed question and different from the first passcode key and the second passcode key. (For example, [6] key) or not (step S108), and the correct numerical value key (for example, [1] key) for the displayed question (step S110). To cross.

In step S110, when it is determined that a numerical key input that is a correct answer to the question has been made (NO in step S104, NO in step S106, NO in step S108, YES in step S110), the processor 21 displays a dot on the display unit 16. In the matrix row, a text message [TEST OK] indicating that the input numerical value is correct is displayed for a predetermined time, for example, 1 second (step S111).

Thereafter, the processor 21 performs a simple inspection mode (step S105), an all inspection mode (step S107), and a display contrast adjustment processing mode (step S109), which will be described later, even though a numerical key to be correct is input. Without performing either, mode setting is executed to forcibly return to the normal mode (step S112), and the processing of FIG.

If it is determined in step S110 that the operated key is not one of the first passcode key, the second passcode key, the third passcode key, and the correct numerical value key for the question (step S104). NO, step S106 NO, step S108 NO, step S110 NO), the process proceeds to step S112 as it is, and the process of FIG.

If it is determined in step S108 that the operator has operated the third passcode key of the numerical / arithmetic symbol key group 12 (NO in step S104, NO in step S106, YES in step S108), the processor 21 The display unit 16 shifts to a display contrast adjustment mode, which is one of the function control modes (step S109).

In this contrast adjustment mode, the contrast value set at that time is adjusted to an arbitrary value.

Specifically, the contrast value at that time is, for example, [<< h>] (“**” is the contrast value) as shown in FIG. 5F in the dot matrix row of the display unit 16. In response to the operation of the left / right direction key of the cursor key 15 of the key input unit 11 by the operator, the contrast value is increased / decreased and reflected in the contrast value portion on the display.

When the contrast adjustment processing is completed and the operator operates a predetermined key operation, for example, the [AC] key of the numerical value / arithmetic symbol key group 12, the processor 21 ends the contrast adjustment processing, and proceeds to step S112. After the contrast adjustment mode, which is one of the control modes, is ended and the mode setting is executed to return to the normal mode, the processing of FIG. 3 is ended. If the [ON] key is operated before the [AC] key for termination is operated, the contrast value that has been adjusted immediately before is returned to the initial value.

If it is determined in step S106 that the second passcode key of the numerical / arithmetic symbol key group 12 has been operated (NO in step S104, YES in step S106), the processor 21 is one of the special function control modes. The whole inspection mode is entered (step S107).

FIG. 5 is a diagram illustrating the transition of the contents displayed on the display unit 16 in the all inspection mode. FIG. 5A to FIG. 5D are displays for wiring check of the liquid crystal display panel of the display unit 16 by visual observation by the operator. First, as appropriate, as shown in FIG. 5A, all segments that can be displayed on the display unit 16 are displayed.

When the operator operates the [SHIFT] (shift) key from this all-segment display state, when appropriate, as shown in FIG. 5B, the entire display segment 16 is not displayed.

Further, when the [SHIFT] key is operated, as shown in FIG. 5C, a display pattern of [Alternate 1] for lighting half segments in units of digits is displayed for each row as appropriate. In the same display state, every other fixed segment is displayed on the top line. In addition, in a plurality of dot matrices in which each segment is arranged along the vertical and horizontal directions of the second row, adjacent to one displayed dot (segment) in the vertical and horizontal directions, respectively, like a checker flag. Dots (segments) are not displayed. In the third numerical display line, a state that is not a specific numerical value is intentionally displayed, and every other comma symbol associated with each digit is also displayed. In this case, out of a total of 8 segments consisting of 7 segments and 1 comma symbol in 8 digits, only 4 segments are displayed in one digit, and 3 segments and 1 comma symbol are displayed in the next digit. Is displayed.

When the [SHIFT] key is subsequently operated, a display pattern of [Alternate 2] obtained by inverting [Alternate 1] is displayed as shown in FIG. FIG. 5C and FIG. 5D are display patterns for the operator to perform a wiring check visually.

When the operator finishes the visual check of the wiring pattern, the operator operates the [SHIFT] key, and as shown in FIG. 5E, the code name of the ROM constituting the memory 22 by the scientific calculator 10 Is displayed. The code name is different depending on the model of the scientific calculator 10. Note that the display pattern of [AC] is displayed on the third line of the display unit 16 so that the key [AC] is pressed to shift from this display state to the next setting (in FIG. 5E). Omitted).

Further, when the [AC] key is operated, the contrast value set at that time is displayed on the display unit 16 as shown in FIG. As described in step S109, it is possible to adjust the increase / decrease of the contrast value by accepting the operation of the left / right direction key of the cursor key 15 of the key input unit 11. Note that the [AC] display pattern is displayed on the third line of the display unit 16 so as to press the [AC] key to shift from this display state to the next setting (in FIG. 5F). Omitted).

Thereafter, when the [AC] key is operated, all keys are checked as shown in FIG. FIG. 5G illustrates a state in which the initial count value [00] is displayed at the leftmost two digits of the dot matrix row.

Except for the [SHIFT] key located at the upper left corner of the key input unit 11, for example, the [ON] key that is a power-on key, the operator selects all the other keys in a raster scan manner. When sequentially operated, the displayed count value is updated by “+1” for each key operation. The key operation order is determined, and when a specific key is operated, the count value is updated depending on whether the next key operation is performed. Is invalid without being counted.

When the connection of the wiring pattern is corrected, the processor 21 determines that all the keys have been operated when the count value [49] corresponding to the total number of keys is reached, and is shown in FIG. As described above, the character message [TEST OK] indicating that the entire inspection mode is completed is displayed in the dot matrix line of the display unit 16. Note that the [AC] display pattern is displayed on the third line of the display unit 16 so that the key [AC] is pressed to shift from this display state to the next setting (in FIG. 5H). Omitted).

When the [AC] key is operated, the process proceeds to step S112, the mode setting is executed to return to the normal mode, and the process of FIG. 3 is terminated.

If it is determined in step S104 that has proceeded from step S103 that the first passcode key of the numerical / arithmetic symbol key group 12 has been operated by the operator (YES in step S104), the processor 21 determines that the special function control mode has been set. One is shifted to the simple inspection mode (step S105).

FIG. 6 is a diagram illustrating a transition of contents displayed on the display unit 16 in the simple inspection mode. FIG. 6A and FIG. 6B are displays for wiring check by visual observation of the liquid crystal display panel of the display unit 16. First, as shown in FIG. 6A, the processor 21 displays a [Alternate 1] display pattern in which half the segments are lit in units of digits in each row, as in FIG. 5C. In the same display state, if the wiring connection is good, every other fixed segment is displayed in the top row. Also, in the second dot matrix row, if the wiring connection is good, every other dot display is made like a checker flag. In the third numerical value display line, if the wiring connection is good, a state that is not a specific numerical value is intentionally displayed, and every other comma symbol associated with each digit is also displayed.

When the operator subsequently operates the [SHIFT] key, the processor 21 inverts the [alternate 1] as shown in FIG. 5 (D) as shown in FIG. 6 (B) [alternate 2]. Display the display pattern.

When the operator finishes checking the wiring pattern by visual inspection and operates the [SHIFT] (shift) key, as shown in FIG. 6C, the processor 21 is similar to the scientific calculator 10 as in FIG. The code name of the ROM constituting the memory 22 is displayed. The code name is different depending on the model of the scientific calculator 10. Further, the [AC] display pattern is displayed on the third line of the display unit 16 so as to press the key [AC] in order to shift from this display state to the next setting (in FIG. 6C). Omitted).

When the [AC] key is further operated, the processor 21 displays a check image for key wiring as shown in FIG. As shown in FIG. 6D, a numerical value / arithmetic symbol key of the key input unit 11 is displayed if a plurality of two-digit numerical values are displayed at intervals in the dot matrix row and the wiring is well connected. When the operator operates the keys of the corresponding numerical values by the group 12, the corresponding numerical values disappear sequentially.

When all the displayed values are keyed in, it is assumed that this key wiring check has been completed, and then a current measurement display is performed as shown in FIG. 6 (E). In FIG. 6 (E), [10] is displayed that has a relatively large number of dots to be lit in each of the 10 digits of the dot matrix row, and the segment that is lit in each of the 10 digits of the numeric display row by the 8-shaped segment is the most Many [8] are displayed with a comma symbol of 3 digits each. Using this display state as a reference pattern, current consumption is measured internally, and it is confirmed whether it is out of the range of a predetermined current value.

When the current consumption is measured and within the predetermined current value range and it is determined that there is no particular problem, the processor 21 executes the setting for turning off the power of the scientific calculator 10 as described above (step S113), the process of FIG. 3 is terminated.

In the simplified inspection mode, unlike the case of the all inspection mode, the scientific calculator 10 is turned off without returning to the normal mode as it is after the processing is completed.

As described above, in the simple inspection mode, the power is automatically turned off immediately after the inspection process, so that the entire inspection process can be performed in the re-inspection process for any individual product after the entire inspection process mode for all products. By reducing the inspection mode, it is possible to simplify the operation and increase the efficiency of the operation, and to minimize the consumption of the battery power source attached to the product at the time of shipment from the manufacturing factory.

As described above in detail, according to the present embodiment, even if a user other than the inspector who does not know the passcode keys in the correct key to the question in the approval mode, the special function control mode is not forcibly entered. Therefore, the user is not guided to the special function control mode unnecessarily.

In particular, in the above embodiment, in the approval mode before the transition to the special function control mode, the correct answer key for the question that only a limited person such as an inspector can know for the simple question displayed on the display unit 16 is By entering a different passcode key, it is possible to correctly shift to the special function control mode and to maintain confidentiality of the shift to the special function control mode.

In addition, in the above embodiment, since a simple question to be displayed on the display unit 16 at the beginning of the transition to the special function control mode is selected from a plurality of prepared in advance, the transition to the special function control mode is performed. The displayed question changes each time a key is designated to indicate that the camouflage effect for avoiding a key operation for actually shifting to the special function control mode can be enhanced. .

In the above embodiment, the inspection process is selectively executed in accordance with the key operation from a plurality of types of inspection modes having different number of inspection processes and contents such as the all inspection mode and the simplified inspection mode. Therefore, the inspection can be executed after selecting a more suitable inspection mode.

In the present embodiment, there are three set of passcode keys: the first passcode key, the second passcode key, and the third passcode key. There may be four or more as necessary. In any case, the passcode key is a key other than the key corresponding to the correct answer to the question.

In the present embodiment, processing is performed in the order of step S104 (and step S105), step S106 (and step S107), step S108 (and step S109), and step S110 (and step S111). S104, step S106, step S110, step S108 may be used in this order, step S104, step S108, step S106, step S110 may be used in this order, step S104, step S108, step S110, step S106 may be used in this order, step S104, The order of step S110, step S106, and step S108 may be used, or the order of step S104, step S110, step S108, and step S106 may be used. S104, step S108, step S110 may be used in this order, step S106, step S104, step S110, step S108 may be used in this order, step S106, step S108, step S104, step S110 may be used in this order, step S106, step S108, The order may be step S110, step S104, step S106, step S110, step S104, step S108, step S106, step S110, step S108, step S104, step S108, step S104, step S106. , Step S110, or step S108, step S104, step S110, step S106, step S108, Step S106, step S104, step S110 may be performed in this order, step S108, step S106, step S110, step S104 may be performed in this order, step S108, step S110, step S104, step S106 may be performed in order, step S108, step S110. , Step S106, Step S104, Step S110, Step S104, Step S106, Step S108, Step S110, Step S104, Step S108, Step S106, Step S110, Step S106, Step S106 The order may be S104, step S108, step S110, step S106, step S108, step S104, step S11. 0, step S108, step S104, and step S106 may be performed in this order, or step S110, step S108, step S106, and step S104 may be performed in this order.

In the present embodiment, the number of questions prepared in the approval mode is plural. However, if a key other than the key that leads to the transition to the special function mode is set to the correct answer, the number of questions corresponding to the correct answer May be single.

In the present embodiment, the correct answers of the plurality of questions prepared in the approval mode are different for each question, but at least some of the correct answers may be the same among the multiple questions.

In this embodiment, the question code, the correct answer, and passcode key data that lead to the transition to the special function mode are stored in the memory 22 in advance before the approval mode, and the display control program based on these data stores the data in the display unit 16. Although the question was displayed, the special function control program 22c has a question creation program for creating a question that has not yet been set, and after shifting to the approval mode, the processor 21 determines the question and its correct answer according to the question creation program. It may be created and a question or the like may be displayed on the display unit 16.

In this case, after transitioning to the approval mode, the corresponding correct answer may be set after creating the question first, or the correct answer may be set first and the question corresponding to the correct answer may be created later. . On the other hand, a question corresponding to the correct answer may be created by the question creation program after the approval mode in a state where the correct answer and the passcode key are set in advance before the approval mode.

And, before shifting to the approval mode, for example, [value (correct answer−value K) + value K =? Including parameter value K (an arbitrary numerical value other than 0, for example, 1)? ] And a correct answer (for example, 4), which is a value excluding the passcode key, may be stored in the memory 22 in advance as a question creation program.

In this case, after shifting to the approval mode, the parameter value K is set, a question (for example, [3 + 1 =?]) Is created from the above arithmetic expression based on the correct answer and the parameter value K, and the question created on the display unit 16 is displayed. You may make it display. There may be a plurality of arithmetic expressions stored in the question creation program, and one arithmetic expression may be determined before or after the approval mode.

In this embodiment, the question is presented to the operator by the display unit, and the passcode is input by key input. However, the question may be presented by voice instead of the display by the display unit, and the operator's The pass code may be input by voice.

[Second Embodiment]
Hereinafter, a second embodiment when the present invention is applied to a scientific calculator will be described in detail with reference to the drawings.

In addition, about the external appearance structure of scientific calculator 10 'which concerns on this embodiment, it is substantially equivalent to the scientific calculator 10 of FIG. 1 of the said embodiment, The same code | symbol is used for the same part and the illustration and description are abbreviate | omitted. To do.

As for the display unit 16, while the uppermost row is a fixed segment display row, most of the remaining areas are, for example, dots of 31 vertical dots × 96 horizontal dots (the dot configuration is omitted in the figure). It is assumed that the matrix area is used, and the calculation formula, solution, guide message, and the like are normally displayed with the dot matrix area as four lines except when the graph is displayed.

FIG. 7 is a block diagram showing a functional configuration of the electronic circuit of the scientific calculator 10 ′. With respect to the basic configuration, it is assumed that it conforms to the functional configuration of the electronic circuit of FIG.

The memory 22 stores a calculator control program 22a, a display control program 22b, and a special function control program 22c ', and secures an input program area 22d, a work area 22e, and a use history storage area 22f.

The special function control program 22c ′ is an operation program stored in the ROM that is executed when the normal mode is shifted to the special function mode. Specifically, the control program in all inspection modes (step S210) described later. The control program in the selective inspection mode (step S212) is included.

The usage history storage area 22f stores, for example, usage history from when the scientific calculator 10 'is turned on until it is turned off. Specifically, the usage history includes the number of transitions to the approval mode described later, the number of correct answers to the questions presented in the approval mode, and all other keys except the [ON] (power on) key in the key input unit 11. Set up the number of operations, especially the number of [=] (execute) key operations, the number of times an error occurred during calculation, the usage time when the power is on, the calculation mode used, the unit of calculation, etc. The number of times, the contents of several numerical memories for storing numerical values, and the like.

The usage time when the power is turned on is counted by using a part of the timing operation executed inside the processor 21 for the auto power off function.

The stored contents of the usage history storage area 22f are sequentially updated by the processor 21 while the power is on, and are retained in nonvolatile storage even if the power is turned off.

Next, the operation of the embodiment will be described. In the subsequent steps, the processor 21 executes processes and determinations other than those specified in particular.

FIG. 8 is a flowchart showing the processing contents in the approval mode stored in the special function control program 22c ′ of the memory 22.

At the time of operation of the scientific calculator 10 in the normal mode before shipment, an operator who is an inspector uses a predetermined plurality of keys, for example, [[] of the mode setting key group 14 as an approval passcode key for shifting to the approval mode. By simultaneously operating a total of three keys, the [SHIFT] key and the [ON] key, and the [5] key of the numerical / arithmetic symbol key group 12, the mode is shifted to the approval mode. The approval passcode key is not limited to the above three keys, and may be two keys or four or more keys, for example.

The processor 21 waits for the transition to the approval mode by repeatedly determining whether or not the three keys are simultaneously operated in the normal mode (step S201).

If it is determined that the three keys are simultaneously operated (Yes in step S201), the processor 21 shifts to an approval mode.

In the approval mode, the processor 21 acquires the usage history information stored in the usage history storage area 22f of the memory 22 at that time (step S202).

The processor 21 randomly or periodically selects one from a plurality of simple questions prepared in advance by the special function control program 22c ′, and uses a part of the acquired usage history information to display the display unit 16. (Step S203).

The question includes operators (for example, +,-, x, ÷) and numerical values. ] Is a question type mathematical expression (equal expression) or inequality having a right side on which is displayed, and the calculation formula is stored as data in the memory 22. An equation (equation) or inequality is, for example, [3-2 =? ], [1 + 1 =? ], [2 + 1 =? ], [5-1 =? ], Different patterns are prepared. The correct answer to each question satisfies mathematical expressions (equals) or inequalities (hereinafter collectively referred to as “expressions”) of different patterns, and [1], [2], [3], [4], respectively. ] Is different. Here, the keys [1], [2], [3], and [4] that have the possibility of correct answers are referred to as question-corresponding keys, and only one correct answer is given to one question that is presented. The key is called a correct key.

The special function control program 22c 'contains data of a plurality of pass codes for shifting to the special function control mode, a plurality of correct answers having different values from the plurality of pass codes, and a plurality of questions corresponding to the plurality of correct answers. Are stored in advance, and the passcode can be input by the operator through key operation of the key input unit 11.

FIG. 9A shows the question [1 + 1 =? In the first line on the left end side of the dot matrix area of the display unit 16 in the approval mode when the operator desires. ] Is displayed, and [Press AC] representing the input for interrupting the approval mode and returning to the normal mode is displayed in the fourth line. That is, among the question corresponding keys [1], [2], [3], and [4], [2] is the correct key.

In addition, on the right end side of the dot matrix area, the number of times of transition to the approval mode and the number of times the correct answer is keyed to the question are indicated by a hexadecimal number, for example, “09 / 1A” based on part of the usage history information. "(Number of correct answers [9] / approval mode display count [26]). The display range of (number of times the correct answer is keyed in) / (number of times of shifting to the approval mode) is set to 00/01 to FF / FF.

The approval mode display count is set to update the holding value by “+1” when it is determined to shift to the approval mode in Step S201 (Yes in Step S201). As for the number of correct answers, the holding value is updated by “+1” when OK display corresponding to the input of the correct key is performed in step S213 described later.

By displaying the number of transitions to the approval mode screen and the number of correct answers on the approval mode screen, when the scientific calculator 10 'is repaired by the manufacturer due to a failure or the like, the user of the scientific calculator 10' It is possible to know how much the user is interested in the special function control mode or how much the inspection has been attempted.

Here, the above question [1 + 1 =? ] Is a numerical value of 2. All of the multiple question-corresponding keys, including the correct answer key that is the correct answer, do not match any of the passcode keys that are set in advance to shift to the all inspection mode and the selective inspection mode, which are special function control modes. Is set.

The processor 21 determines whether or not any key operation has been performed on the key input unit 11 from the state in which the question is displayed in step S203 (step S204). If it is determined that no key of the key input unit 11 has been operated (NO in step S204), the processor 21 determines whether or not a certain time, for example, 5 [seconds] has elapsed without a key operation on the question. Is determined (step S205).

If it is determined that the state where the key operation for the question is not performed has not yet passed (NO in step S205), the processor 21 returns to the process from step S204 again.

In this way, while repeatedly executing the processes of steps S204 and S205, the processor 21 waits for a certain time to be operated or for some key of the key input unit 11 to be operated.

In step S205, when it is determined that a state in which no key operation is performed on the question has elapsed (YES in step S205), the processor 21 interrupts the approval mode at that time and forcibly returns to the normal mode. Setting is executed (step S217), and the processing in FIG.

FIG. 9B is a diagram illustrating an initial screen on the display unit 16 that has returned to the normal mode. At the head position of the first row of the dot matrix area of the display unit 16, the cursor C formed by a vertical line or a horizontal line is displayed in reverse, which repeats display and erasure alternately every predetermined period, for example, 0.5 [seconds]. This indicates a state in which the input of calculation is prompted.

If it is determined in step S204 that any key of the key input unit 11 has been operated (YES in step S204), the processor 21 sets the operated key in advance including the correct key of the displayed question. Whether it is the first passcode key (for example, [9] key) of the numerical / arithmetic symbol key group 12 set in advance so as to be different from the plurality of question-corresponding keys (step S206). A second passcode that is set in advance so that it is different from a plurality of preset question-corresponding keys including the correct answer key of the question that is being set and different from the second passcode key in the numerical / arithmetic symbol key group 12 Whether the key is a key (for example, [6] key) or not (step S207), and is a numeric key for the correct answer to the displayed question (for example, [2] key) NO (step S208), [AC] key, question answering key (for example, [1] key, [3] key and [4] key) excluding the correct answer key, or (step S215) is sequentially judged. To do.

In step S208, if it is determined that a correct numerical key input corresponding to the question has been made (NO in step S206, NO in step S207, YES in step S208), the processor 21 as shown in FIG. 9D. In the first line of the dot matrix area of the display unit 16, a character message [TEST OK] indicating that the input numerical value is correct is displayed for a predetermined time, for example, 1 second (step S213).

Thereafter, the processor 21 sets the lock flag held in the work area 22e in a non-volatile manner on the assumption that the operator is not an inspector and thereafter prohibits the shift to the special function control mode (step S214). ). After that, the processor 21 executes a setting for forcibly returning to the normal mode (step S217), and the process of FIG. Specifically, if the lock flag is in the on state, the inspection mode is not changed even if the first passcode key or the second passcode key is input as in steps S204, S206, and S207 described later. Cannot enter special function control mode.

If it is determined in step S208 that a key input other than the correct answer key for the question has been made (NO in step S206, NO in step S207, NO in step S208), the process proceeds to step S215. If it is determined in step S215 that the input key is one of the [AC] key or a plurality of other question corresponding keys excluding the correct answer key (YES in step S215), the normal mode is set (step S217). ), The process of FIG. On the other hand, if it is determined in step S215 that the input key is not one of a plurality of other question handling keys excluding the correct answer key or the [AC] key (NO in step S215), the processor 21 determines that the operator As a tester, the lock flag held in the work area 22e in a non-volatile manner is set off to cancel the prohibition of the transition to the special function control mode (step S216), and the processing from step S204 is continued again. return.

In step S206, the operated key is the first passcode key (for example, the [9] key) of the numerical / arithmetic symbol key group 12 set in advance so as to be different from the correct answer key of the displayed question. (YES in step S206), the processor 21 next determines whether or not the lock flag is set to OFF at that time (step S209).

If it is determined that the lock flag is not set off at that time and is set to on (NO in step S209), a numerical value that is the correct answer to the question is input at a time before that, and at this time Assuming that the operator is not an inspector, the processor 21 executes the setting for forcibly returning to the normal mode as it is without performing the processing in all inspection modes (step S217). End the process.

If it is determined in step S209 that the lock flag is set to OFF (YES in step S209), the processor 21 determines that the operator is an inspector, and the processor 21 determines that all inspection modes are one of the special function control modes. (Step S210).

10 and 11 are diagrams illustrating transition of contents displayed on the display unit 16 in all inspection modes. FIG. 10A to FIG. 10E are displays for checking the wiring continuity of the liquid crystal display panel of the display unit 16 by visual observation of the operator. First, as appropriate, as shown in FIG. 10A, all segments that can be displayed on the display unit 16 are displayed.

When the operator who is the operator operates the [SHIFT] (shift) key from this all-segment display state, when appropriate, as shown in FIG. 10B, the entire segment of the display unit 16 is not displayed. It becomes a state.

Further, when the [SHIFT] key is operated, as shown in FIG. 10C, a frame by one dot on the outer peripheral side of the dot matrix area is displayed as appropriate.

Subsequently, when the [SHIFT] key is operated, as shown in FIG. 10D, half of the dots in the dot matrix area are displayed every other one like a checker flag, as appropriate [alternate 1]. Display the display pattern.

If the [SHIFT] key is subsequently operated, a display pattern of [alternate 2] obtained by inverting the above [alternate 1] is displayed as shown in FIG. When appropriate, FIG. 10D and FIG. 10E are display patterns for the operator to perform a wiring check visually.

When the operator finishes checking the wiring pattern by visual inspection, the operator operates the [SHIFT] key, and the code of the ROM constituting the memory 22 by the scientific calculator 10 'as shown in FIG. 10 (F). Display name and others. The code name is different depending on the model of the scientific calculator 10 '. Note that the display pattern of [Press AC] is displayed in the fourth row of the dot matrix area so as to prompt the operation of a key ([AC] key) for shifting from this display state to the next setting. When the screen transitions from FIG. 10 (A) to FIG. 10 (F), even if a key other than the [SHIFT] key is operated, the screen does not transition.

Further, when the [AC] key is operated, the contrast value set on the display unit 16 at that time is displayed as shown in FIG. As shown in the display of the third and fourth lines of the dot matrix area, the contrast value can be increased or decreased by receiving the operation of the left / right direction key of the cursor key 15 of the key input unit 11.

Then, when the [AC] key is operated, a key check state is entered as shown in FIG. When the screen transitions to FIG. 10G and FIG. 11A, even if a key other than the [AC] key is operated, the screen does not transition. FIGS. 11A to 11C illustrate a state in which the initial count value [00] is displayed in the leftmost two digits of the first row of the dot matrix area.

Except for the [SHIFT] key located at the upper left corner of the key input unit 11, for example, the [ON] key that is a power-on key, the operator selects all the other keys in a raster scan manner. When sequentially operated, the displayed count value is updated by “+1” for each key operation.

FIG. 11B shows a display state of the display unit 16 when the [**]-th key is operated. The key operation order is fixed, and when a specific key is operated, the count value is updated depending on whether the next key operation is performed. Is invalid without being counted.

FIG. 11C shows the display state of the display unit 16 when the [48] -th key [Ans] in the total number of keys [49] is operated. When the [=] key at the lower right of the key input unit 11 is further operated, the key check process is completed as described above, and when the connection of the wiring pattern is corrected, the inspection result is displayed as shown in FIG. To do.

In FIG. 11 (D), “TEST OK” is displayed to indicate that the test is completed in the first row of the dot matrix area of the display unit 16 and all the inspection results are reset to prompt the transition to the normal mode. [Reset All] [Press AC] is displayed in the third and fourth lines so as to prompt the operation of the [AC] key.

Thereafter, when the operator operates the [AC] key of the key input unit 11 in accordance with the display, the above completes all the inspection modes in step S210 and executes the setting for returning to the normal mode (step S217). 8 is terminated, and the screen returns to the normal mode initial screen as shown in FIG.

In step S207, the operated key is the second passcode key (for example, the [6] key) of the numerical / arithmetic symbol key group 12 set in advance so as to be different from the correct answer of the displayed question. (NO in step S206, YES in step S207), the processor 21 next determines whether or not the lock flag is set to OFF at that time (step S211).

If it is determined that the lock flag is not set OFF at that time and is set to ON (NO in step S211), a numerical value that is the correct answer to the question is input before that time. Assuming that the operator is not an inspector, the processor 21 executes the setting for forcibly returning to the normal mode as it is without performing the processing in the selective inspection mode (step S217). The process ends.

If it is determined in step S211 that the lock flag is set to OFF (YES in step S211), the processor 21 shifts to the selective inspection mode which is one of the special function control modes (step S212).

FIG. 9C shows the liquid crystal display panel ([1: Disp]) check and ROM ([2: Ver] in the first and second rows of the dot matrix area of the display unit 16 at the beginning of the selective inspection mode. / SUM]), a key ([3: Key]) check, and a contrast ([4: Cont.]) Check are shown on the screen. Further, in the fourth row of the dot matrix area, a guide [Press AC] that cancels the selective inspection mode and prompts the return to the normal mode is displayed.

When the [1] key corresponding to [1: Disp] of the key input unit 11 is operated from the state of the screen shown in FIG. 9C, as shown in FIGS. 10A to 10E. To be executed. After the check, when the operator operates the [SHIFT] (shift) key, the initial screen of the selective inspection mode in FIG. 9C is restored.

When the [2] key corresponding to [2: Ver / SUM] of the key input unit 11 is operated from the screen state shown in FIG. 9C, as shown in FIG. The calculator 10 'displays the code name of the ROM constituting the memory 22 and others. The code name is different depending on the model of the scientific calculator 10 '. It should be noted that the screen is displayed in the fourth row of the dot matrix area so as to prompt the user to operate a key ([AC] key) for returning to the initial screen of the selective inspection mode from this display state. After the check, when the operator operates the [AC] key, the initial screen of the selective inspection mode shown in FIG. 9C is restored.

When the [3] key corresponding to [3: Key] of the key input unit 11 is operated from the screen state shown in FIG. 9C, as shown in FIG. Become.

In this key check state, as described with reference to FIGS. 11A to 11C, the operator performs other scans in a raster scan pattern in a predetermined order except for the [ON] key which is a power-on key. When all the keys are operated sequentially, the displayed count value is updated by “+1” for each key operation. The operation continues until the total number of keys [49] is operated in the correct order. After the check is completed, when the operator operates the [AC] key from the screen shown in FIG. 11D, the initial screen of the selective inspection mode shown in FIG. 9C is restored.

Also, from the state of the screen shown in FIG. 9C, [4: Cont. When the [4] key corresponding to] is operated, as shown in FIG. After the check, when the operator operates the [AC] key, the initial screen of the selective inspection mode shown in FIG. 9C is restored.

In addition, when the [AC] key of the key input unit 11 is operated as shown in the fourth row from the screen state shown in FIG. 9C, this selective inspection mode is canceled and FIG. E) The setting for returning to the normal mode is executed (step S217), and the processing of FIG.

In FIG. 9A, it has been described that the number of times of display of the approval mode screen and the number of correct input times are displayed on the right end side of the dot matrix area, but instead of these, other information such as a scientific calculator is displayed. Information indicating the usage history of the user 10 'may be displayed.

FIG. 9E illustrates a display screen in the initial approval mode instead of FIG. 9A. On the right end side of the dot matrix area, for example, the notation [EXE 04] indicating that the [=] (execution) key has been operated four times in the first row, and the usage time in the second row, depending on part of the usage history information. [02H] is displayed indicating that is 2 hours. By displaying a part of the usage history information at this time, when the operator is an inspector, it is possible to easily grasp the usage status immediately before the scientific calculator 10 'by the user.

The usage history information includes, in addition, the total number of operations of all the keys of the key input unit 11, the number of times an error has occurred when inputting a function expression, the total usage time, the number of switching between various calculation modes, and radians. In addition, the number of setups such as switching the angle unit including the degree unit, the contents of an independent memory or a variable memory for storing numerical values in a nonvolatile manner, and the like are conceivable. In addition to the situation where the question is displayed as shown in FIGS. 9A and 9E, the usage history information can be operated simultaneously with the [SHIFT] (shift) key and the [AC] key. 9A and 9E from the normal mode screen for a certain period of time, the screen is turned off as shown in FIG. 10A. You may switch.

As described above in detail, according to the present embodiment, when a user other than an inspector who does not know the passcode key-in the correct answer to the question in the approval mode, the lock flag is turned on, and thereafter Even if a passcode key different from the correct answer key for a question, which can be known only by a limited person such as an examiner, is accidentally input to a simple question displayed on the display unit 16, the special function is ensured by the ON setting. Transition to the control mode can be prevented.

In particular, in the above-described embodiment, in the approval mode before the transition to the special function control mode, a key input is provided for setting the off flag for the inspector to release the lock flag from the state in which the lock flag is already set on. Thus, even in the scientific calculator 10 ′ in which the lock flag is set to ON, the processing in the special function control mode can be executed.

In the above-described embodiment, at the end of the screen of the approval mode, as the part of the usage history, for example, the number of display of the approval mode screen, the number of correct answers, the number of key operations, the usage time, etc. are also written. Before shifting to the special function control mode, the inspector can easily grasp a part of the usage of the scientific calculator 10 '.

As described above, the first and second embodiments when applied to a scientific calculator have been described. However, the present invention is not limited to a scientific calculator and other computers, and can answer a question and a question. If it has a means, it will become possible to apply similarly also to various electronic devices which require special function control, such as a test | inspection like a smart phone provided with a software key, a tablet, and a general household appliance.
The application method of the program in the present invention is arbitrary. The program can be applied by being stored in a computer-readable storage medium such as a flexible disk, a CD (Compact Disc) -ROM, a DVD (Digital Versatile Disc) -ROM, or a memory card. In this case, the scientific calculator 10, 10 ′ may be provided with an interface that can be connected to the storage medium. Also, the program can be superimposed on a carrier wave and applied via a communication medium such as the Internet. For example, the program may be posted on a bulletin board (BBS: Bulletin Board System) on a communication network and distributed. The program may be started and executed in the same manner as other application programs under the control of an OS (Operating System) so that the above-described processing can be executed.

In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the embodiments may be appropriately combined as much as possible, and in that case, the combined effect can be obtained. Furthermore, the embodiments include 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 requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the column of the effect of the invention Can be obtained as an invention.
Note that the entire contents of Japanese Patent Application No. 2018-24417 (filed on Feb. 14, 2018) and Japanese Patent Application No. 2018-215761 (filed on Nov. 16, 2018) are included in this specification. It has been incorporated.

DESCRIPTION OF SYMBOLS 10,10 '... Scientific calculator (electronic device), 11 ... Key input part, 12 ... Numerical value / arithmetic symbol key group, 13 ... Function function key group, 14 ... Mode setting key group, 15 ... Cursor key, 16 ... Display part 17 ... Solar panel, 21 ... Processor, 22 ... Memory, 22a ... Calculator control program, 22b ... Display control program, 22c, 22c '... Special function control program, 22d ... Input program area, 22e ... Work area, 22f ... Use History storage area, 23 ... recording medium, 24 ... recording medium interface (I / F), 25 ... communication unit, B ... bus, C ... cursor, CS ... card slot

Claims (33)

1. Memory,
   With a processor,
   The processor is
   In approval mode, present questions and
   Accepting a response to the presented question from the operator,
   An electronic device that shifts to a mode different from the special function mode when a response from the operator matches a correct answer to the question.
2. The electronic device according to claim 1, wherein the mode different from the special function mode is a normal mode before shifting to the approval mode.
3. 3. The electronic device according to claim 1, wherein the processor shifts from the approval mode to the special function mode when the processor determines that a response from the operator matches a passcode different from a correct answer to the question.
4. The electronic device according to claim 3, wherein the memory stores data of the passcode, a correct answer having a value different from the passcode, and a question corresponding to the correct answer.
5. The processor is
   If the response from the operator matches the correct answer to the question, set a lock flag to prohibit the transition to the special function mode,
   5. The electronic device according to claim 3, wherein, even when a response from the operator matches a passcode different from a correct answer to the question, the electronic device shifts to a mode different from the special function mode when the lock flag is set. .
6. The memory stores data of the passcode, a plurality of correct answers having values different from the passcode, and a plurality of questions corresponding to the plurality of correct answers,
   The processor is configured such that a response from the operator is a correct answer to one presented question among the plurality of questions, a passcode different from a correct answer to the presented one question, and among the plurality of questions, The electronic device according to claim 5, wherein the lock flag is canceled when different from both a correct answer to a question other than the presented question and a clear instruction.
7. The memory stores use history data of the electronic device,
   The electronic device according to claim 1, wherein the processor presents at least part of the usage history data together with a question in the approval mode.
8. The electronic device according to claim 7, wherein the usage history data includes at least one of the number of times of transition to the approval mode, the number of times that the response from the operator matches the correct answer to the question, and the usage time.
9. 9. The electronic device according to claim 1, wherein the special function mode has an inspection mode for inspecting the electronic device.
10. The electronic device according to any one of claims 1 to 8, wherein the special function mode has a plurality of different inspection modes.
11. An input key for the operator to respond;
    The electronic device according to claim 1, further comprising a display that displays an operation result of the input key.
12. The electronic device according to claim 11, wherein the special function mode includes a contrast adjustment mode for adjusting a contrast of the display.
13. The electronic device according to any one of claims 1 to 12, wherein the approval mode is shifted by inputting a preset approval passcode.
14. The memory stores data of a plurality of questions,
    The electronic device according to claim 1, wherein the processor selects one question from the data and presents the selected question in the approval mode.
15. 15. The electronic device according to claim 1, wherein the question is one of a mathematical expression including an operator and a numerical value or an inequality including the operator and a numerical value.
16. 16. The electronic device according to claim 1, wherein the processor performs calculation according to an operator's numerical input operation.
17. In the control method of electronic equipment,
    A processor of the electronic device,
    In approval mode, present questions and
    Accepting a response to the presented question from the operator,
    When the response from the operator matches the correct answer to the question, the electronic device control method shifts to a mode different from the special function mode.
18. 18. The electronic device control method according to claim 17, wherein the mode different from the special function mode is a normal mode before shifting to the approval mode.
19. The method of controlling an electronic device according to claim 17 or 18, wherein when the response from the operator is determined to match a passcode different from a correct answer to the question, the approval mode is shifted to the special function mode.
20. The electronic device control method according to claim 19, wherein the electronic device includes a memory in which data of the passcode, a correct answer different from the passcode, and a question corresponding to the correct answer is stored.
21. The processor is
    If the response from the operator matches the correct answer to the question, set a lock flag to prohibit the transition to the special function mode,
    21. The electronic device control according to claim 20, wherein even when a response from the operator matches a passcode different from a correct answer to the question, the mode shifts to a mode different from the special function mode when the lock flag is set. Method.
22. The memory stores data of the passcode, a plurality of correct answers having values different from the passcode, and a plurality of questions corresponding to the plurality of correct answers,
    The processor is configured such that a response from the operator is a correct answer to one presented question among the plurality of questions, a passcode different from a correct answer to the presented one question, and among the plurality of questions, The method of controlling an electronic device according to claim 21, wherein the setting of the lock flag is canceled when different from both a correct answer to a question other than the presented question and a clear instruction.
23. The memory stores use history data of the electronic device,
    The method of controlling an electronic device according to any one of claims 20 to 22, wherein the processor presents at least a part of the usage history data together with a question in the approval mode.
24. 24. The method of controlling an electronic device according to claim 23, wherein the usage history data includes at least one of the number of times of transition to the approval mode, the number of times that the response from the operator matches the correct answer to the question, and the usage time. .
25. 25. The method for controlling an electronic device according to claim 17, wherein the special function mode includes an inspection mode for inspecting the electronic device.
26. The electronic device control method according to any one of claims 17 to 24, wherein the special function mode has a plurality of different inspection modes.
27. The electronic device is
    An input key for the operator to respond;
    27. The method of controlling an electronic device according to claim 17, further comprising a display that displays an operation result of the input key.
28. 28. The method of controlling an electronic device according to claim 27, wherein the special function mode includes a contrast adjustment mode for adjusting a contrast of the display.
29. The electronic device control method according to any one of claims 17 to 28, wherein the approval mode is set by inputting a preset approval passcode.
30. The memory stores data of a plurality of questions,
    25. The method of controlling an electronic device according to claim 20, wherein the processor selects one question from the data and presents the selected question in the approval mode.
31. 31. The electronic device control method according to claim 17, wherein the question is one of a mathematical expression including an operator and a numerical value or an inequality including the operator and the numerical value.
32. The electronic device control method according to any one of claims 17 to 31, wherein the processor performs calculation according to an operator's numerical input operation.
33. A program executed by a computer incorporated in an electronic device,
    In approval mode, ask questions and
    Let the operator accept a response to the presented question,
    A program for shifting to a mode different from the special function mode when a response from the operator matches a correct answer to the question.

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