JP7226596B2 - ELECTRONIC DEVICE, CONTROL METHOD AND PROGRAM FOR ELECTRONIC DEVICE - Google Patents

Description

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

Techniques have been proposed which aim to enable logging data to be used as input simulations as they are, eliminate the need for manual input operations in the simulation, and reproduce input operations at the place of use. (For example, Patent Document 1)

JP-A-63-193217

Including the technology described in the above patent document, in various data processing devices having a keyboard and a display unit, such as calculators, smartphones, personal computers, etc., in a state where manufacturing is completed, the instruction manual of the product etc. A special function mode (e.g. inspection mode, serviceman mode, etc.), and can perform special functions based on special programs registered as part of the internal operation program. In the inspection mode, inspection can be executed before or after shipment of the product based on an inspection program registered in advance as part of the internal operation program.

However, there is a problem that for some reason, the user grasps the method of shifting to the special function mode by key operation, and the user executes the special function.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its object is to provide an electronic device, a control method for the electronic device, and a program that can be controlled so as not to easily execute a special function. That's what it is.

An electronic device according to an aspect of the present invention, in an approval mode, presents an arithmetic expression whose solution is a numerical value , receives an input of a solution to the presented arithmetic expression from an operator, and receives an input from the operator. When the solution matches the numerical value that is the solution of the arithmetic expression , different mode transition processing is executed to shift to a mode different from the special function mode, and the solution accepted by the operator is the solution of the arithmetic expression. A processor is provided for executing special function mode transition processing for transitioning from the approval mode to the special function mode when it is determined that a certain numerical value matches a passcode that is a different numerical value.

According to the present invention, it is possible to easily control to prevent the special function from being executed.

1 is a front view illustrating an external configuration of a scientific calculator according to a first embodiment of the present invention; FIG. FIG. 2 is a block diagram showing the functional configuration of the electronic circuit of the scientific calculator according to the embodiment; 4 is a flow chart showing processing contents in an approval mode according to the embodiment; FIG. 4 is a diagram illustrating display contents on a display unit according to the embodiment; FIG. 5 is a diagram illustrating transition of display contents on a display unit in an all-inspection mode according to the embodiment; FIG. 5 is a diagram illustrating transition of display contents on the display unit in a simple inspection mode according to the embodiment; FIG. 5 is a block diagram showing the functional configuration of an electronic circuit of a scientific calculator according to a second embodiment of the present invention; 4 is a flow chart showing processing contents in an approval mode according to the embodiment; FIG. 5 is a diagram illustrating transition of display contents on the display unit when transitioning to a special function control mode according to the embodiment; FIG. 5 is a diagram illustrating transition of display contents on a display unit in an all-inspection mode according to the embodiment; FIG. 5 is a diagram illustrating transition of display contents on a display unit in an all-inspection mode according to the embodiment;

[First embodiment]
A first embodiment in which the present invention is applied to a functional calculator will be described in detail below with reference to the drawings.
FIG. 1 is a plan view showing the external configuration of a scientific calculator 10 according to this embodiment. In the figure, a key input unit 11, a display unit 16, and a solar panel 17 are provided on the front of the main body.

The key input unit 11 includes a group of numerical/arithmetic symbol keys 12 for inputting numerical values and formulas or for instructing the execution of calculations, a group of function function keys 13 for inputting various functions and activating memory functions, A group of mode setting keys 14 for instructing display of menu screens of various operation modes and setting of operation modes, operation of moving the cursor displayed on the group of mode setting keys 14, operation of calling calculation formulas, selection of data items, and the like. Cursor keys 15 are provided for executing.

The numerical value/operation symbol key group 12 includes [0] to [9] (numerical value) keys, [+] [-] [x] [÷] (four arithmetic symbols) keys, [Ans] key, [=] (execute ) key, [AC] (clear) key for clearing, etc. are arranged.

The function function key group 13 includes functions such as [x ^-1 ] (reciprocal) key, [nCr] (combination) key, [Pol (] (polar coordinate) key, [x ³ ] (cubic) key, etc. Various function keys are arranged.

As the mode setting key group 14, a [SHIFT] key, an [ALPHA] (alphabet) key, a [MODE CLR] (mode clear) key, an [ON] (power on) key, etc. are arranged.

The display unit 16 is composed of a reflective liquid crystal display panel, and the top line is a display line of fixed segments such as [D] and [SCI], and the second line is 6 dots long by 5 dots wide by 12 dots. A dot matrix row of digits, and the third row is a numerical value display row of 8-shaped segments of 10 digits + 2 digits of the exponent part.

The solar panel 17 is a solar battery 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. Since the amount of external light around the scientific calculator 10 is small, the solar panel 17 alone is required for display and calculation operations. If the power cannot be covered, it is possible to supply power with the attached dry cell.

Although not shown, the side or rear surface of the scientific calculator 10 is provided with a card slot for inserting and removing a memory card, and a communication terminal, such as a USB terminal, for communicating with an external device. shall be

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

The electronic circuit of this scientific calculator 10 is mainly composed of a processor 21 such as a CPU (Central Processing Unit), and through a bus B, a memory 22, a recording medium interface 24, a display section 16, a key input section 11, and a communication section. 25 are connected.

The memory 22 includes a ROM in which an operation program executed by the processor 21, fixed data, and the like are nonvolatilely stored, and a RAM in which various data read from the ROM are developed and held. A control program 22b and a special function control program 22c are stored, and an input program area 22d and a work area 22e are secured.

The calculator control program 22a is an operation program stored in the ROM that executes various kinds of arithmetic processing including functional operations in the normal mode.

The display control program 22b is an operation program stored in the ROM that controls the display contents on the display section 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. It has a control program for the full inspection mode (step S107) and a control program for the display contrast adjustment processing mode (step S109).

The input program area 22d is an area within the RAM in which an additional program or the like, which will be described later, is stored when input from the outside.

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

The recording medium interface 24 is an interface connected to the recording medium 23 such as a memory card installed in the functional calculator 10 via the card slot CS in order to read data such as additional programs from the recording medium 23 . Data such as the read additional program is stored in the input program area 22 d 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 device such as a personal computer through a wired connection through a communication terminal such as a USB terminal, or through a wireless connection through a wireless LAN, so that it can be connected to an external network (NW). It transmits and receives necessary data, for example, data when the functional calculator 10 is upgraded.

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

FIG. 3 is a flow chart showing the details of processing in the approval mode, stored in the special function control program 22c of the memory 22. As shown in FIG.

When the scientific calculator 10 is operated in the normal mode before shipment, the operator who is the inspector uses a predetermined plurality of keys, for example, [[ SHIFT] key, [ON] key, and the [5] key of the numerical/arithmetic symbol key group 12 are simultaneously operated to shift to the approval mode. The authorization passcode keys are not limited to the three keys described above, and may be, for example, two keys or four or more keys.

In the normal mode, the processor 21 repeatedly determines whether or not the three keys have been operated simultaneously, thereby waiting for transition to the approval mode (step S101).

When determining that the three keys have been operated simultaneously (Yes in step S101), the processor 21 shifts to the approval mode.

In the approval mode, 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 displays it on the dot matrix line of the display section 16 (step S103). ).

Questions contain operators (eg, +, -, ×, ÷) and numerical values, and the left-hand side requiring operations and [? ] is displayed on the right side, and the calculation formula is stored as data in the memory 22 . The formula is, for example, [3-2=? ], [1+1=? ], [2+1=? ], [5-1=? ], a plurality of different patterns are prepared. The correct answers to each of the above questions are different from [1], [2], [3], and [4]. The special function control program 22c contains, as data, a plurality of passcodes for shifting to the special function control mode, a plurality of correct answers having different values from the passcodes, and a plurality of questions corresponding to the plurality of correct answers. , is stored in advance, and the passcode can be input by the operator by operating the keys of the key input unit 11 .

FIG. 4 shows the question [3-2=? ] is displayed. Here, the correct answer to the question is 1. The correct input key is set so as not to match any of the preset passcode keys for shifting to the simple inspection mode, full inspection mode, and contrast adjustment mode, which are special function control modes.

The processor 21 accepts key input from the operator through the key input unit 11 from the state in which the question is displayed in step S103, and sets in advance such that the operated key is different from the correct answer of the displayed question. Whether or not it is the first passcode key (for example, the [8] key) of the numerical value/calculation symbol key group 12 (step S104) is similarly different from the correct answer of the displayed question and the numerical value/calculation symbol key Whether or not it is the second passcode key (for example, the [9] key) preset to be different from the first passcode key in the symbol key group 12 (step S106), the correct answer of the displayed question. It is displayed whether it is a third passcode key (for example, the [6] key) that is different from the first passcode key and is preset to be different from the second passcode key (step S108). It is sequentially determined whether or not it is a numeric key (for example, the [1] key) that is the correct answer to the question being asked (step S110).

If it is determined in step S110 that a key input of a numerical value that is the 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 the dots on the display unit 16. In the matrix row, a character message [TEST OK] indicating that the input numerical value is correct is displayed for a certain period of time, for example, one second (step S111).

After that, the processor 21 selects a simple inspection mode (step S105), a full inspection mode (step S107), and a display contrast adjustment processing mode (step S109), which will be described later, even though the correct numeric key has been input. Without performing any of the above, mode setting is executed to forcibly return to the normal mode (step S112), and the processing of FIG. 3 is completed.

Further, in step S110, if it is determined that the operated key is neither the first passcode key, the second passcode key, the third passcode key, nor the correct numeric key for the question (step S104). NO in step S106, NO in step S108, NO in step S110), the process proceeds to step S112, and the process of FIG. 3 ends.

If it is determined in step S108 that the third passcode key of the numeric/arithmetic symbol key group 12 has been operated by the operator (NO in step S104, NO in step S106, YES in step S108), the processor 21 The mode shifts to the display contrast adjustment mode on the display unit 16, 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 displayed, for example, in the dot matrix row of the display unit 16 as shown in FIG. , the operator's operation of the left and right direction keys of the cursor keys 15 of the key input unit 11 is accepted to increase or decrease the contrast value, which is reflected in the contrast value portion on the display.

After finishing the contrast adjustment process, when the operator operates a predetermined key operation, for example, the [AC] key of the numerical/arithmetic symbol key group 12, the processor 21 finishes the contrast adjustment process, proceeds to step S112, and enters an inspection mode. After executing the mode setting to end the contrast adjustment mode and return to the normal mode, the process of FIG. 3 ends. If the [ON] key is operated before the [AC] key for termination is operated, the previously adjusted contrast value is returned to the initial value.

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

FIG. 5 is a diagram illustrating transition of contents displayed on the display unit 16 in the all inspection mode. 5A to 5D are displays for visually checking the wiring of the liquid crystal display panel of the display unit 16. FIG. First, as shown in FIG. 5A, all displayable segments of the display unit 16 are displayed.

When the operator operates the [SHIFT] key from this all-segment display state, all the segments of the display section 16 are changed to a state in which all segments are not displayed as shown in FIG. 5B.

When the [SHIFT] key is further operated, as shown in FIG. 5(C), a display pattern of [Alternate 1] is displayed in which half of the segments in each row are lit. In this display state, every other fixed segment is displayed in the top row. In addition, in a plurality of dot matrices in which each segment is arranged along the vertical and horizontal directions of the second row, like a checkered flag, one displayed dot (segment) is adjacent to each other in the vertical and horizontal directions. Prevents dots (segments) from being displayed. In the third numerical value display line, a state that is not a specific numerical value is intentionally displayed, and a comma attached to each digit is also displayed alternately. In this case, out of a total of 8 segments, 7 segments and 1 comma, which make up a figure of 8, only 4 segments are displayed in one digit, and 3 segments and 1 comma are displayed in the next digit. is displayed.

When the [SHIFT] key is subsequently operated, as shown in FIG. 5(D), the display pattern of [Alternate 2], which is the inverse of the [Alternate 1], is displayed. FIGS. 5(C) and 5(D) are display patterns for the operator to visually check the wiring.

After completing the visual check of the wiring pattern, the operator operates the [SHIFT] key to enter the code name of the ROM constituting the memory 22 in the functional calculator 10 as shown in FIG. 5(E). display. The code name differs depending on the model of the functional calculator 10 . A key ([AC] key) for shifting from this display state to the next setting is displayed on the third line of the display section 16. FIG.

When the [AC] key is further operated, the contrast value set at that time is displayed on the display section 16 as shown in FIG. 5(F). As described in step S109, the operation of the left and right direction keys of the cursor keys 15 of the key input unit 11 can be accepted to increase or decrease the contrast value. A key ([AC] key) for shifting from this display state to the next setting is displayed on the third line of the display section 16. FIG.

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

In a predetermined order, for example, starting with the [SHIFT] key located at the upper left corner of the key input unit 11, the operator presses all the other keys in a raster scan manner, except for the [ON] key which is the power-on key. When operated sequentially, the displayed count value is updated by "+1" each time the key is operated. The key operation order is defined, and when a certain key is operated, the count value is updated depending on whether or not the defined key is operated next, so key operations other than the defined order is invalid without being counted.

Processor 21 determines that all keys have been operated when the count value reaches [49] corresponding to the number of all keys, and as shown in FIG. is displayed on the dot matrix line of the display unit 16. A key ([AC] key) for shifting from this display state to the next setting is displayed on the third line of the display section 16. FIG.

When the [AC] key is operated, the process advances to step S112, executes mode setting to return to the normal mode, and then terminates the process of FIG.

If it is determined in step S104 following step S103 that the operator has operated the first passcode key of the numeric/arithmetic symbol key group 12 (YES in step S104), the processor 21 enters the special function control mode. One, the simple inspection mode, is entered (step S105).

FIG. 6 is a diagram illustrating transition of contents displayed on the display unit 16 in the simple inspection mode. FIGS. 6A and 6B are displays for visually checking the wiring of the liquid crystal display panel of the display unit 16. FIG. First, as shown in FIG. 6A, the processor 21 displays a display pattern of [Alternate 1] in which half of the segments in each row are lit in the same manner as in FIG. 5C. In this display state, if the wiring connection is good, every other fixed segment is displayed in the top row. In the second dot matrix row, if the wiring connection is good, every other dot is displayed like a checkered 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 a comma attached to each digit is also displayed every other digit.

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

When the operator finishes checking the wiring pattern visually and operates the [SHIFT] (shift) key, the processor 21, as shown in FIG. 6C, similarly to FIG. to display the code name of the ROM that constitutes the memory 22 . The code name differs depending on the model of the functional calculator 10 . Also, a key ([AC] key) for shifting from this display state to the next setting is displayed on the third line of the display section 16 .

When the [AC] key is further operated, the processor 21 displays a check image for key wiring as shown in FIG. 6(D). As shown in FIG. 6(D), seven two-digit numbers are displayed at intervals in the dot matrix row. When the operator operates the keys of the corresponding numerical values in the key group 12, the corresponding numerical values disappear one by one.

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

If the current consumption is measured and determined to be within a predetermined current value range and that there is no particular problem, the processor 21 performs the above settings to turn off the power of the scientific calculator 10 (step S113), the process of FIG. 3 is terminated.

In the simple inspection mode, unlike the full inspection mode, the power of the scientific calculator 10 is turned off without returning to the normal mode after the processing is completed.

In this way, in the simple inspection mode, by automatically turning off the power immediately after the inspection processing, the entire inspection process can be completed by re-inspection processing for any individual product after the all-inspection processing mode for all products. By reducing the inspection mode, the work can be simplified and work efficiency can be improved, and the consumption of the battery power supply installed in the product at the time of shipment from the factory can be minimized.

As described in detail above, according to this embodiment, in the approval mode, even if a user other than the inspector who does not know the passcode inputs the correct answer to the question, the mode is not shifted to the special function control mode, and the mode is forcibly entered. Since the user is guided to the normal mode, the user will not unnecessarily perform processing in the special function control mode.

In particular, in the above-described embodiment, in the approval mode, which is the stage before transitioning to the special function control mode, for simple questions displayed on the display unit 16, only a limited person such as an inspector can know the key for the correct answer to the question. By inputting a different passcode key, it is possible to correctly shift to the special function control mode and maintain the secrecy of the shift to the special function control mode.

In addition, in the above-described embodiment, one simple question to be displayed on the display unit 16 at the beginning of transition to the special function control mode is selected from a plurality of prepared questions. By changing the displayed question every time the key is specified, the camouflage effect for avoiding the key operation for actually shifting to the special function control mode can be further enhanced. .

Further, in the above-described embodiment, the inspection process is selectively executed according to the key operation from a plurality of inspection modes such as the full inspection mode and the simple inspection mode, which differ in the number of inspection processes and contents. The inspection can be performed after selecting a more suitable inspection mode due to the difference in the necessity of performing the inspection.

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

In the present embodiment, steps S104 (and step S105), step S106 (and step S107), step S108 (and step S109), and step S110 (and step S111) are processed in this order, but the present invention is not limited to this. S104, step S106, step S110, and step S108 may be performed in that order, step S104, step S108, step S106, and step S110 may be performed in this order, or step S104, step S108, step S110, and step S106 may be performed in this order. The order may be step S110, step S106, step S108, the order may be step S104, step S110, step S108, step S106, the order may be step S106, step S104, step S108, step S110, step S106, step S104. , step S110, step S108, step S106, step S108, step S104, step S110 may be performed in the order, step S106, step S108, step S110, step S104 may be performed in the order, step S106, step S110, step The order may be S104, then step S108, or the order of step S106, step S110, step S108, and step S104, or the order of step S108, step S104, step S106, and step S110. The order may be step S106, or the order of step S108, step S106, step S104, and step S110, or the order of step S108, step S106, step S110, and step S104, or the order of step S108, step S110, step S104, and step S106. or in the order of step S108, step S110, step S106, and step S104, or in the order of step S110, step S104, step S106, and step S108, or in the order of step S110, step S104, step S108, and step S106. Alternatively, the order of step S110, step S106, step S104, and step S108 may be used, or the order of step S110, step S106, step S108, and step S104 may be used. , step S108, step S104, and step S106, or step S110, step S108, step S106, and step S104.

In this embodiment, a plurality of questions are prepared in the approval mode. may be single.

In this embodiment, the correct answers to the questions prepared in the approval mode differ for each question, but at least some of the correct answers may overlap among the questions.

In this embodiment, before the approval mode, the question, the correct answer, and the data of the passcode key leading to the transition to the special function mode are stored in the memory 22 in advance. Although the questions were displayed, the special function control program 22c has a question creation program that creates questions that have not yet been set, and after shifting to the approval mode, the processor 21 creates questions and their correct answers according to the question creation program. may be created and the questions and the like may be displayed on the display unit 16 .

In this case, after shifting to the approval mode, the question may be created first and then the corresponding correct answer may be set, or the correct answer may be set first and then the question corresponding to the correct answer may be created later. . Without being limited to this, in a state in which the correct answer and the passcode key are set in advance before the approval mode, the question corresponding to the correct answer may be created by the question creating program after the approval mode.

Then, before shifting to the approval mode, for example, [value (correct answer - value K) + value K = ? ] 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 created question is displayed on the display unit 16. You may make it display. A plurality of arithmetic expressions may be stored in the question creation program, and one arithmetic expression may be determined before or after the approval mode.

In the present embodiment, questions are presented to the operator through the display unit, and the passcode is entered by key input. The passcode may be input by voice.

[Second embodiment]
A second embodiment in which the present invention is applied to a functional calculator will be described in detail below with reference to the drawings.

The appearance of the functional calculator 10' according to the present embodiment is assumed to be substantially the same as the functional calculator 10 of the above embodiment shown in FIG. do.

As for the display section 16, while the top row is the display row of the fixed segment, most of the remaining area is filled with dots of, for example, 31 dots high by 96 dots wide (the dot configuration is omitted in the drawing). Except when displaying graphs, etc., the dot matrix area is normally set to 4 rows to display arithmetic expressions, solutions, guide messages, and the like.

FIG. 7 is a block diagram showing the functional configuration of the electronic circuit of the scientific calculator 10'. As for the basic configuration, the functional configuration of the electronic circuit shown in FIG. 2 is applied, and the same reference numerals are given to the same parts, and the description thereof will be omitted.

The memory 22 stores a calculator control program 22a, a display control program 22b, and a special function control program 22c', and also secures an input program area 22d, a work area 22e, and a usage 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. , the control program in the selective inspection mode (step S212).

The usage history storage area 22f stores, for example, the usage history from when the power of the scientific calculator 10' is turned on until it is turned off. As the usage history, specifically, the number of times of shifting to the approval mode, which will be described later, the number of correct answers to the questions presented in the approval mode, the number of all keys other than the [ON] (power on) key in the key input unit 11 Setup settings for setting 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 was on, the calculation mode used, the unit of calculation, etc. The number of times, the contents of some numerical memory that stores numerical values, and the like.

The usage time during which the power is turned on is counted from the time when the power is turned on using part of the timekeeping operation executed inside the processor 21 for the auto power off function.

The contents stored in the usage history storage area 22f are sequentially updated by the processor 21 while the power is on, and are retained in non-volatile memory even after the power is turned off.

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

FIG. 8 is a flow chart showing the details of processing in the approval mode, which are stored in the special function control program 22c of the memory 22. As shown in FIG.

When the scientific calculator 10 is operated in the normal mode before shipment, the operator who is the inspector uses a predetermined plurality of keys, for example, [[ SHIFT] key, [ON] key, and the [5] key of the numerical/arithmetic symbol key group 12 are simultaneously operated to shift to the approval mode. The authorization passcode keys are not limited to the three keys described above, and may be, for example, two keys or four or more keys.

In the normal mode, the processor 21 repeatedly determines whether or not the three keys have been operated simultaneously, thereby waiting for transition to the approval mode (step S201).

When determining that the three keys have been operated simultaneously (Yes in step S201), the processor 21 shifts to the approval mode.

In the approval mode, the processor 21 acquires 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 part of the acquired use history information to display the is displayed (step S203).

The question contains operators (eg, +, -, ×, ÷) and numeric values, the left-hand side that requires an operation, and the equal sign [? ] is displayed on the right side, and the calculation formula is stored as data in the memory 22 . The formula is, for example, [3-2=? ], [1+1=? ], [2+1=? ], [5-1=? ], a plurality of different patterns are prepared. The correct answers to each of the above questions are different from [1], [2], [3], and [4]. Here, the keys [1], [2], [3], and [4] that have the possibility of correct answers are called question-corresponding keys, of which only one correct answer is given to one question. The key is called the correct key.

In the special function control program 22c', a plurality of passcodes for shifting to the special function control mode, a plurality of correct answers having different values from the passcodes, and a plurality of questions corresponding to the plurality of correct answers are data. , and the passcode can be input by the operator by operating the keys of the key input unit 11 .

FIG. 9A shows the question [1+1=? ] is displayed, and [Press AC] is displayed on the fourth line to prompt an input to interrupt the approval mode and return to the normal mode. That is, among the question-corresponding keys [1], [2], [3], and [4], [2] is the correct key.

In addition, on the right side of the dot matrix area, part of the usage history information indicates the number of times the approval mode was entered and the number of times the correct answer to the question was keyed in, for example, "09/1A" in hexadecimal. ” (correct input count [9]/approval mode display count [26]). The display range of (the number of correct key inputs)/(the number of transitions to the approval mode) is set to 00/01 to FF/FF.

The number of times the approval mode is displayed is updated by "+1" when it is determined in step S201 that the mode is to be shifted to the approval mode (Yes in step S201). As for the number of correct answers, the retained value is updated by "+1" at the time when the OK display corresponding to the correct key input is performed in step S213, which will be described later.

By displaying the number of transitions to the approval mode screen and the number of correct inputs on the approval mode screen, the user of the scientific calculator 10' can It is possible to ascertain how much the person is interested in the special function control mode, or how much the person has tried to inspect the special function control mode.

Here, the question [1+1=? ] is 2. All of the multiple question-corresponding keys, including the correct answer key, are set so as not to match any of the passcode keys 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 where the question is displayed in step S203 (step S204). If it is determined that none of the keys of the key input unit 11 has been operated (NO in step S204), the processor 21 determines whether or not a certain period of time, for example 5 [seconds], has passed without any key operation for the question. is determined (step S205).

If it is determined that the predetermined time has not passed without any key operation for the question (NO in step S205), the processor 21 returns to the process from step S204.

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

If it is determined in step S205 that a certain period of time has passed without any key operation in response to the question (YES in step S205), the processor 21 interrupts the approval mode at that point and forcibly returns to the normal mode. The setting is executed (step S217), and the process of FIG. 8 is terminated.

FIG. 9B is a diagram illustrating an initial screen on the display section 16 after returning to the normal mode. At the head position of the first line in the dot matrix area of the display unit 16, the cursor C is displayed and erased alternately at regular intervals, for example, every 0.5 [seconds]. indicates that the

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 determines that the operated key is set in advance including the correct key for the displayed question. Whether or not it is the first passcode key (for example, the [9] key) of the numeric/arithmetic symbol key group 12 preset to be different from the plurality of question corresponding keys (step S206) is similarly displayed. A second passcode preset to be different from a plurality of preset question-corresponding keys including the correct key for the question being asked and also to be different from the second passcode key in the numerical/arithmetic symbol key group 12 Whether it is a key (for example, [6] key) (step S207), whether it is a numeric key (for example, [2] key) that is the correct answer to the displayed question (step S208), excluding the correct key It is sequentially determined whether it is one of the question corresponding keys (for example, the [1] key, [3] key and [4] key) or the [AC] key (step S215).

If it is determined in step S208 that the correct key input of the numerical value that is the correct answer to the question has been made (NO in step S206, NO in step S207, YES in step S208), the processor 21 performs the following operations as shown in FIG. 9(D). 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 certain period of time, for example, one second (step S213).

After that, the processor 21 assumes that the operator is not the inspector, prohibits the transition to the special function control mode thereafter, and turns on the lock flag nonvolatilely held in the work area 22e (step S214). ). After that, the processor 21 executes the setting for forcibly returning to the normal mode (step S217), and ends the processing in FIG. Specifically, if the lock flag is in the ON state, the special function control mode such as the inspection mode is activated even if the first passcode key or the second passcode key is input, as in step S209 or the like, which will be described later. cannot move to

If it is determined in step S208 that a key input other than the correct numeric key for the correct answer to 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 a plurality of question-corresponding keys other than the correct key or the [AC] key (YES in step S215), the normal mode is set (step S217). ), the process of FIG. 8 ends. On the other hand, if it is determined in step S215 that the input key is not one of a plurality of question-corresponding keys other than the correct key or is not the [AC] key (NO in step S215), the processor 21 prompts the operator to is the inspector, the lock flag non-volatilely held in the work area 22e is set to off (step S216) in order to cancel the prohibition of shifting to the special function control mode, and the process 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 numeric/arithmetic symbol key group 12 preset to be different from the correct key for the displayed question. If so (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 to OFF at that point and is set to ON (NO in step S209), the numerical value that is the correct answer to the question has been input before that point, and at this point Assuming that the operator is not an inspector, the processor 21 does not perform all inspection mode processing, but forcibly returns to the normal mode (step S217). End the process.

Further, when it is determined in step S209 that the lock flag is set to OFF (YES in step S209), the processor 21 assumes that the operator is an inspector, and the processor 21 enters an all inspection mode, which is 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. FIGS. 10A to 10E are displays for visually checking the continuity of wiring on the liquid crystal display panel of the display unit 16. FIG. First, as shown in FIG. 10A, all displayable segments of the display unit 16 are displayed.

When the examiner, who is the operator, operates the [SHIFT] key from this all-segment display state, all the segments on the display unit 16 are changed to a state in which all segments are not displayed, as shown in FIG. 10B.

When the [SHIFT] key is further operated, as shown in FIG. 10(C), a frame formed by one dot on the outer peripheral side of the dot matrix area is displayed.

Subsequently, when the [SHIFT] key is operated, as shown in FIG. 10(D), the display pattern of [Alternate 1] is displayed, in which every other half of the dots in the dot matrix area is displayed like a checkered flag. indicate.

When the [SHIFT] key is subsequently operated, as shown in FIG. 10(E), the display pattern of [Alternate 2], which is the inverted version of [Alternate 1], is displayed. FIGS. 10(D) and 10(E) are display patterns for the operator to visually check the wiring.

After completing the visual check of the wiring pattern, the operator operates the [SHIFT] (shift) key to read the code of the ROM that constitutes the memory 22 in the functional calculator 10' as shown in FIG. 10(F). Display first name and others. The code name differs depending on the model of the functional calculator 10'. Note that the 4th line of the dot matrix area prompts the operation of the key ([AC] key) for shifting from this display state to the next setting. 10(A) to 10(F), even if a key other than the [SHIFT] key is operated, the screen does not change.

When the [AC] key is further operated, the contrast value set at that time is displayed on the display section 16 as shown in FIG. 10(G). As indicated by the third and fourth rows of the dot matrix area, the contrast value can be increased or decreased by accepting the operation of the left and right direction keys of the cursor keys 15 of the key input unit 11 .

After that, when the [AC] key is operated, the key check state is entered as shown in FIG. 11(A). 10(G) and 11(A), even if a key other than the [AC] key is operated, the screen does not transition. FIGS. 11A to 11C exemplify 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.

In a predetermined order, for example, starting with the [SHIFT] key located at the upper left corner of the key input unit 11, the operator presses all the other keys in a raster scan manner, except for the [ON] key which is the power-on key. When operated sequentially, the displayed count value is updated by "+1" each time the key is operated.

FIG. 11B shows the display state of the display section 16 when the [**]th key is operated. The order of key operations is fixed, and when a specific key is operated, the count value is updated depending on whether or not the specified key is operated next. is invalid without being counted.

FIG. 11C shows the display state of the display unit 16 when the [48]th key [Ans] out of the total number of keys [49] is operated. Further, when the [=] key at the lower right of the key input unit 11 is operated, the key check process is completed, and the inspection result is displayed as shown in FIG. 11(D).

In FIG. 11(D), "TEST OK" is displayed in the first line of the dot matrix area of the display unit 16 to indicate that the test has been completed, and all the test results are reset to prompt the shift to the normal mode. [Reset All] and [Press AC] are displayed on the third and fourth lines to prompt the operation of the [AC] key.

After that, when the operator operates the [AC] key of the key input unit 11 according to the display, the all inspection modes in step S212 are completed, and the setting to return to the normal mode is executed (step S217). 8 is completed, and the normal mode initial screen is displayed as shown in FIG. 11(E).

Also, in step S207, the operated key is the second passcode key (for example, the [6] key) of the numerical/arithmetic symbol key group 12 which is preset to be different from the correct answer of the displayed question. If so (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 to off at that point and is set to on (NO in step S211), the numerical value that is the correct answer to the question has been input before that point, and at this point Assuming that the operator is not an inspector, the processor 21 does not perform the processing of the selected inspection mode and forcibly returns to the normal mode (step S217). End the process.

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 that at the beginning of the selective inspection mode, in the first and second rows of the dot matrix area of the display unit 16, the liquid crystal display panel ([Disp]) is checked, the ROM ([Ver/SUM]) is , a key ([Key]) check, or a contrast check. Further, in the fourth line of the dot matrix area, a guide [Press AC] is displayed for canceling the selective inspection mode and prompting a return to the normal mode.

When the [1] key of the key input unit 11 is operated from the state of the screen shown in FIG. 9(C), the operations are executed as shown in FIGS. 10(A) to 10(E). When the operator operates the [SHIFT] key after completing the check, the initial screen of the selective inspection mode shown in FIG. 9(C) is restored.

When the [2] key of the key input unit 11 is operated from the state of the screen shown in FIG. 9(C), as shown in FIG. Show chord names and more. The code name differs depending on the model of the functional calculator 10'. The fourth line of the dot matrix area prompts the user to press the key ([AC] key) to return to the initial screen of the selective inspection mode from this display state. When the operator operates the [AC] key after completing the check, the initial screen of the selective inspection mode shown in FIG. 9(C) is restored.

When the [3] key of the key input unit 11 is operated in the state of the screen shown in FIG. 9(C), a key check state is entered as shown in FIG. 11(A).

In this key check state, as described with reference to FIGS. 11A to 11C, in a predetermined order, except for the [ON] key, which is the power-on key, the operator performs a raster scan. When all the keys are operated in sequence, the displayed count value is updated by "+1" each time the key is operated. Operation continues until all keys [49] are operated in the correct order. When the operator operates the [AC] key on the screen shown in FIG. 11(D) after the check is completed, the screen returns to the initial screen of the selective inspection mode shown in FIG. 9(C).

Further, when the [4] key of the key input unit 11 is operated in the state of the screen shown in FIG. 9(C), a state is entered in which contrast check is performed as shown in FIG. 10(G). When the operator operates the [AC] key after completing the check, the initial screen of the selective inspection mode shown in FIG. 9(C) is restored.

Also, when the [AC] key of the key input unit 11 is operated as shown in the fourth line from the state of the screen shown in FIG. 9(C), this selective inspection mode is canceled and As shown in E), the setting for returning to the normal mode is executed (step S217), and the processing of FIG. 8 ends.

In addition, in FIG. 9A, the number of display times of the approval mode screen and the number of correct input times are displayed on the right side of the dot matrix area. Information indicating the usage history of the user of 10' may be displayed.

FIG. 9(E) exemplifies a display screen at the beginning of the approval mode in place of FIG. 9(A). On the right side of the dot matrix area, part of the usage history information shows, for example, the notation [EXE 04] indicating that the [=] (execution) key has been operated four times on the first line, and the usage time on the second line. The notation [02H] indicating that the time is 2 hours is displayed. By also displaying part of the usage history information at this point, if the operator is an inspector, the user can easily grasp the usage status of the scientific calculator 10' immediately before.

The usage history information also includes the total number of times all keys of the key input unit 11 have been operated, the number of times an error has occurred when inputting a function expression, the total usage time, the number of times of switching between various calculation modes, and the angle unit. The number of set-up times such as switching between , the content of an independent memory that stores numerical values in a non-volatile manner, the contents of a variable memory, and the like can be considered. In addition, the usage history information can be obtained by simultaneously operating the [SHIFT] key and [AC] key in addition to the situation where questions are displayed as shown in FIGS. 9A and 9E. 9(A) or 9(E) from the normal mode screen for a certain period of time, and then the screen is completely turned off as shown in FIG. 10(A). You can switch.

As described in detail above, according to the present embodiment, when a user other than an inspector who does not know the passcode inputs a correct answer to a question in the approval mode, the lock flag is turned on so that Even if a passcode key different from the correct answer key for the question, which can be known only by a limited person such as an inspector, is accidentally input for the simple question displayed on the display unit 16, the special function control mode is surely entered. can prevent migration.

In particular, in the above-described embodiment, in the approval mode prior to shifting to the special function control mode, the lock flag is already set to ON, and the inspector is provided with a key input for setting OFF to release the lock flag. Therefore, even the functional calculator 10' with the lock flag set to ON can execute processing in the special function control mode.

In the above-described embodiment, as part of the usage history, the number of times the approval mode screen has been displayed, the number of correct entries, or the number of key operations and usage time, etc., are written together at the end of the approval mode screen. , the examiner can easily grasp a part of how the scientific calculator 10' is used before shifting to the special function control mode.

As described above, the first and second embodiments when applied to a scientific calculator have been described, but the present invention is not limited to scientific calculators and other calculators, and is capable of asking questions and answering questions. If it has means, it will be possible to similarly apply it to various electronic devices that require special function control such as inspection, such as smartphones and tablets equipped with software keys, and general home appliances.

In addition, the present invention is not limited to the above-described embodiments, and can be variously modified in the implementation stage without departing from the gist of the invention. Moreover, each embodiment may be implemented in combination as much as possible, and in that case, the combined effect can be obtained. Furthermore, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriate combinations of a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, the problems described in the column of problems to be solved by the invention can be solved, and the effects described in the column of effects of the invention is obtained, a configuration from which this constituent element is deleted can be extracted as an invention.

The invention described in the original claims of the present application is appended below.
[Claim 1]
memory;
with a processor
The processor
In approval mode, present a question,
Receiving a response from the operator to the presented question,
An electronic device that shifts to a mode different from the special function mode when the response from the operator matches the correct answer to the question.
[Claim 2]
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.
[Claim 3]
3. The electronic device according to claim 1, wherein the processor shifts from the approval mode to the special function mode when determining that the response from the operator matches a pass code different from the correct answer to the question.
[Claim 4]
4. The electronic device according to claim 3, wherein the memory stores data of the passcode, a correct answer with a value different from the passcode, and a question corresponding to the correct answer.
[Claim 5]
The processor
when the response from the operator matches the correct answer to the question, a lock flag is set to prohibit transition to the special function mode;
5. The electronic device according to claim 3, wherein even if the response from the operator matches a correct answer to the question and a different passcode, the electronic device shifts to a mode different from the special function mode while the lock flag is set. .
[Claim 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 determines whether the response from the operator is a correct answer to one presented question among the plurality of questions, a pass code different from the correct answer to the one presented question, 6. The electronic device according to claim 5, wherein the setting of the lock flag is canceled when neither the correct answer for the question other than the presented one question nor the clear instruction is different.
[Claim 7]
the memory stores usage history data of the electronic device;
7. The electronic device according to any one of claims 1 to 6, wherein said processor presents at least part of said usage history data along with a question in said approval mode.
[Claim 8]
8. The electronic device according to claim 7, wherein said usage history data includes at least one of a number of times said approval mode has been entered, a number of times a response from said operator has matched a correct answer to said question, and a usage time.
[Claim 9]
9. The electronic equipment according to claim 1, wherein said special function mode has an inspection mode for inspecting said electronic equipment.
[Claim 10]
9. The electronic device according to any one of claims 1 to 8, wherein the special function mode has a plurality of inspection modes different from each other.
[Claim 11]
an input key for the operator to respond;
a display for displaying operation results of the input keys;
The electronic device according to any one of claims 1 to 10, further comprising:
[Claim 12]
12. The electronic device according to claim 11, wherein said special function mode has a contrast adjustment mode for adjusting contrast of said display.
[Claim 13]
13. The electronic device according to any one of claims 1 to 12, wherein the approval mode is set by entering a preset approval passcode.
[Claim 14]
The memory stores data of a plurality of questions,
14. The electronic device according to any one of claims 1 to 13, wherein said processor selects one question from said data and presents said selected question in said approval mode.
[Claim 15]
15. The electronic device according to any one of claims 1 to 14, wherein the questions are mathematical formulas containing operators and numerical values.
[Claim 16]
16. The electronic device according to any one of claims 1 to 15, wherein the processor performs calculation according to an operator's numerical input operation.
[Claim 17]
In the control method of electronic equipment,
a processor of the electronic device,
In approval mode, present a question,
Receiving a response from the operator to the presented question,
A control method for an electronic device that shifts to a mode different from the special function mode when the response from the operator matches the correct answer to the question.
[Claim 18]
18. The method of controlling an electronic device according to claim 17, wherein the mode different from the special function mode is a normal mode before shifting to the approval mode.
[Claim 19]
19. The method of controlling an electronic device according to claim 17, wherein when it is determined that the response from the operator matches a correct answer to the question and a different passcode, the mode is shifted from the approval mode to the special function mode.
[Claim 20]
20. The method of controlling an electronic device according to claim 19, wherein the electronic device has a memory storing data of the passcode, a correct answer with a value different from the passcode, and a question corresponding to the correct answer.
[Claim 21]
The processor
when the response from the operator matches the correct answer to the question, a lock flag is set to prohibit transition to the special function mode;
21. The control of the electronic device according to claim 20, wherein even if the response from the operator matches a correct answer to the question and a different passcode, a mode different from the special function mode is entered while the lock flag is set. Method.
[Claim 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 determines whether the response from the operator is a correct answer to one presented question among the plurality of questions, a pass code different from the correct answer to the one presented question, 22. The method of controlling an electronic device according to claim 21, wherein the setting of the lock flag is canceled when neither the correct answer for the question other than the one presented question nor the clear instruction is different.
[Claim 23]
the memory stores usage history data of the electronic device;
23. The electronic device control method according to claim 20, wherein said processor presents at least a part of said usage history data together with a question in said approval mode. [Claim 24]
24. The method of controlling an electronic device according to claim 23, wherein the data of the usage history includes at least one of the number of times of shifting to the approval mode, the number of times the response from the operator matches the correct answer to the question, and the usage time. .
[Claim 25]
25. The electronic device control method according to claim 17, wherein the special function mode has an inspection mode for inspecting the electronic device.
[Claim 26]
25. The method of controlling an electronic device according to claim 17, wherein the special function mode has a plurality of inspection modes different from each other.
[Claim 27]
The electronic device
an input key for the operator to respond;
a display for displaying operation results of the input keys;
27. The method of controlling an electronic device according to any one of claims 17 to 26, further comprising:
[Claim 28]
28. The method of controlling an electronic device according to claim 27, wherein said special function mode has a contrast adjustment mode for adjusting contrast of said display.
[Claim 29]
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.
[Claim 30]
The memory stores data of a plurality of questions,
25. The method of controlling an electronic device according to claim 20, wherein said processor selects one question from said data and presents said selected question in said approval mode. [Claim 31]
31. The method of controlling an electronic device according to claim 17, wherein the question is a formula including operators and numerical values.
[Claim 32]
32. The method of controlling an electronic device according to any one of claims 17 to 31, wherein the processor performs calculation according to a numeric input operation by an operator.
[Claim 33]
A program executed by a computer incorporated in an electronic device, the computer comprising:
In approval mode, present a question,
Receive a response from the operator to the presented question,
A program for shifting to a mode different from the special function mode when the response from the operator matches the correct answer to the question.

10, 10'...scientific calculator,
11... key input unit,
12 Numeric value/operation symbol key group,
13... function function key group,
14... Mode setting key group,
15... Cursor key,
16 ... display unit,
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 section,
B... bus,
C... Cursor,
CS: card slot

Claims (13)

In acceptance mode, presenting an arithmetic expression whose solution is a number ,
Receiving an input of a solution to the presented arithmetic expression from an operator,
executing different mode transition processing for transitioning to a mode different from the special function mode when the solution received from the operator matches the numerical value that is the solution of the arithmetic expression ;
If it is determined that the solution received from the operator matches the passcode that is a numerical value different from the numerical value that is the solution of the arithmetic expression, special function mode transition processing is executed to transition from the approval mode to the special function mode. An electronic device comprising a processor that The processor
2. The electronic device according to claim 1, wherein, in said approval mode, a plurality of arithmetic expressions having different numerical solutions can be displayed, and one of said plurality of arithmetic expressions is presented. The processor
3. The electronic device according to claim 2, wherein after the execution of the different mode transition process, the electronic device according to claim 2 is configured to be able to present an arithmetic expression different from the arithmetic expression presented last time in the approval mode when the approval mode is shifted again next time. device. 4. The electronic device according to claim 2, wherein the numerical value of the passcode is different from the numerical values of any of the solutions of the plurality of arithmetic expressions. The input keys of the electronic device include at least a first numeric key including a numeric display of the solution to the arithmetic expression and a second numeric key including a numeric display of the passcode,
The processor, in the approval mode,
when receiving an operation of the first numeric key from the operator, executing the different mode transition processing;
5. The electronic device according to any one of claims 1 to 4, wherein the special function mode transition processing is executed when an operation of the second numeric key is received from the operator. 6. The electronic device according to any one of claims 1 to 5 , wherein the mode different from the special function mode is a normal mode before shifting to the approval mode. 7. The electronic device according to any one of claims 1 to 6, wherein the memory of the electronic device stores data of the pass code, the numerical value of the solution of the arithmetic expression , and the arithmetic expression . the memory of the electronic device stores usage history data of the electronic device;
8. The electronic device according to any one of claims 1 to 7 , wherein said processor presents at least part of said usage history data together with said arithmetic expression in said approval mode. 9. The electronic device according to claim 8 , wherein said usage history data includes at least one of the number of times said approval mode has been entered, the number of times a solution received from said operator matches the numerical value of a solution of said arithmetic expression , and usage time. device. an input key for receiving an input of a solution from an operator;
10. The electronic device according to any one of claims 1 to 9 , further comprising a display for presenting said arithmetic expression . 11. The electronic device according to any one of claims 1 to 10 , wherein the approval mode is set by entering a preset approval passcode. In the control method of electronic equipment,
a processor of the electronic device,
In acceptance mode, presenting an arithmetic expression whose solution is a number ,
Receiving an input of a solution to the presented arithmetic expression from an operator,
executing different mode transition processing for transitioning to a mode different from the special function mode when the solution received from the operator matches the numerical value that is the solution of the arithmetic expression ;
If it is determined that the solution received from the operator matches the passcode that is a numerical value different from the numerical value that is the solution of the arithmetic expression, special function mode transition processing is executed to transition from the approval mode to the special function mode. method of controlling electronic devices that A program executed by a computer incorporated in an electronic device, the computer comprising:
In approval mode, present an arithmetic expression whose solution is a numerical value ,
Accepting an input of a solution to the presented arithmetic expression from the operator,
executing a different mode transition process for transitioning to a mode different from the special function mode when the solution received from the operator matches the numerical value that is the solution of the arithmetic expression ;
If it is determined that the solution received from the operator matches the passcode that is a numerical value different from the numerical value that is the solution of the arithmetic expression, special function mode transition processing is executed to transition from the approval mode to the special function mode. program to make

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