JPH0555247U - Small electronic calculator - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a compact electronic computer in which correspondences between mode types and mode type instruction keys can be clearly displayed on the display unit and explanations and the like are unnecessary. [Configuration] When the mode key 1b is operated (step S
1), a menu corresponding to the number of operations is displayed on the display unit 6 (step S2). At the first time, the symbols “COMP”, “SD”, “LR” and “BASE-N” corresponding to the menu (1) are displayed on the symbol display portion 6b and the dot matrix display portion 6a is displayed.
The numbers "0", "1", "2", "3" are displayed on the screen. Also, 2
The second time, "D""R""G""FIX""SC" corresponding to menu (2)
The symbols "I", "NORM", and "ENG" are displayed, and the numbers "4", "5", "6", are displayed on the dot matrix display portion 6a.
“7”, “8”, “9”, “·” are displayed. To specify the mode, the number displayed corresponding to the symbol representing the mode is set by the numeric keypad 1a. As a result, the number is determined (step S3), and the mode corresponding to the number is designated (steps S4 to S14).

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a small electronic computer that can perform statistical calculation, function calculation, etc.

[0002]

[Prior Art]

 In a conventional small electronic computer, to specify a mode, by operating the mode setting key and one of a plurality of mode type instruction keys in succession, a symbol representing the type of mode is displayed on the display section. It

[0003]

[Problems to be solved by the device]

 For this reason, it is necessary to print an explanatory text showing the correspondence between the mode types and the mode type instruction keys on the case surface or the like, and there is a disadvantage that the appearance is spoiled. The present invention has been made to solve the above problem, and provides a small electronic computer in which the correspondence between the mode types and the mode type instruction keys can be clearly displayed on the display unit, and explanations etc. are unnecessary. With the goal.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is directed to a small electronic computer capable of performing statistical calculation, function calculation, etc., in which a key input means having a numeric keypad, a mode key, etc., a menu storage means for storing a plurality of mode menus, The mode storing means for storing the designated mode designated by the ten keys, the display means having at least a plurality of digits and the symbol indicating the type of the mode, and the mode menu displayed on the display means by operating the mode key and the previous time. It is characterized by further comprising control means for clearly indicating the designated mode stored in the mode storing means when the mode is designated.

[0005]

[Action]

 The operation of this device is as follows. When the mode key is operated with the key input means, the mode menu corresponding to the menu number is read from the menu storage means and displayed on the display means, and the designated mode stored in the mode storage means at the time of the previous mode designation. However, for example, the number corresponding to the designated mode is indicated by blinking display.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the circuit configuration of a small electronic computer. The key input unit 1 has a numeric keypad 1a for inputting numerical data of "0" to "9", a mode key 1b for designating a mode, an ON key 1c for turning on a power source, and the like. When the key input section 1 performs a key operation, a key input signal corresponding to the key operation is output to the control section 2. The control unit 2 takes in the key input signal output from the key input unit 1 and executes various processes based on a control program stored in a ROM (not shown). A mode register 3, a menu storage unit 4, a menu No. storage unit 5, and a display unit 6 are connected to the control unit 2. The mode register 3 stores the designated mode currently designated. The menu storage unit 4 stores two types of menu groups representing the types of modes. In this case, a menu (1) consisting of four "COMP", "SD", "LR", and "BASE-N" corresponding to menu numbers "0" to "3" and menu numbers "4" to "4" The menu (2) consisting of seven items of "D", "R", "G", "FIX", "SCI", "NORM", and "ENG" corresponding to "" is stored. The menu number "1" or "2" is stored in the menu number storage section 5 according to the number of times the mode key 1b is operated.

The display unit 6 has a dot matrix display unit 6a for displaying numerical data and a symbol display unit 6b for displaying a menu indicating the type of mode. The symbol display portion 6b has a two-stage structure, and the upper stage is composed of the symbols “D”, “R”, “G”, “FIX”, “SC I”, “NORM”, and “ENG” corresponding to the menu (2), and the lower stage is It is composed of the symbols "COMP", "SD", "LR", and "BASE-N" corresponding to the menu (1).

Next, the operation of the above embodiment will be described with reference to FIGS. 2 and 3. FIG. 2 is a flowchart showing the operation, and FIG. 3 is a diagram showing a display example corresponding to a key operation. When the key input section 1 performs a key input, the processing of FIG. 2 is started. In step S1, it is determined whether or not the mode key 1b has been pressed. If YES is determined in step S1, the process proceeds to step S2, and if NO is determined, the process proceeds to step S15.

When the mode key 1b is operated, the process proceeds from step S1 to step S2. In step S2, menu processing is executed. In this menu processing, the menu No. "1" or "2" is stored in the menu No. storage unit 5 according to the number of operations of the mode key 1b, and the menu based on the contents of the menu No. storage unit 5 is stored in the menu storage unit 5. It is read out from 4 and displayed on the display unit 6. That is, when the mode key 1b is operated, the menu No. “1” is stored in the menu No. storage unit 5 at the first time and the menu (1) is displayed on the display unit 6, and the menu No. storage unit at the second time. The menu No. “2” is stored in 5, and the menu (2) is displayed on the display unit 6.

In the subsequent step S3, it is judged what the number entered by the numeric keypad 1a after the mode key 1b is, and one of steps S4 to S14 is selected depending on the number "0" to "." move on. That is, when the number is "0", the process proceeds to step S4, and the C OMP mode is designated. If the number is "1", the process proceeds to step S5, and the SD mode is designated. If the number is "2", the flow advances to step S6 to specify the LR mode. If the number is "3", the process proceeds to step S7, and the BASE-N mode is designated. If the number is "4", the process proceeds to step S8, and the D mode is designated. If the number is "5", the process proceeds to step S9, and the R mode is designated. If the number is "6", the process proceeds to step S10, and the G mode is designated. If the number is "7", the process proceeds to step S11, and the FIX mode is designated. If the number is "8", the flow advances to step S12 to specify the SCI mode. If the number is "9", the process proceeds to step S13 and the NORM mode is designated. When the number is ". (Decimal point)", the process proceeds to step S14, and the ENG mode is designated.

Next, the operation will be described based on the key operation. First, as shown in FIG. 3A, when the ON key 1c is operated, NO is determined in step S1 and the process proceeds to step S15. In the other processing of step S15, processing corresponding to the key input is performed. In this case, since the ON key 1c is input, the power is turned on and the designated mode stored in the mode register 3 is displayed. For example, when the COMP mode is designated, the cursor "-" is displayed on the dot matrix display section 6a and the symbol "COMP" is displayed on the symbol display section 6b as shown in FIG.

Next, as shown in FIG. 3B, when the first mode key 1b is operated, YES is determined in step S1 and the process proceeds to step S2. In step S2, the menu processing is executed, the menu No. “1” is stored in the menu No. storage unit 5, and the menu (1) is displayed on the display unit 6. That is, the symbols "COMP", "SD", "LR", and "BASE-N" corresponding to the menu (1) are displayed on the symbol display portion 6b of the display portion 6, and the number "" is displayed on the dot matrix display portion 6a. "0", "1", "2", "3" are displayed. Especially, since the COMP mode is currently designated, the number "0" is displayed blinking.

When the mode key 1b is operated again as shown in FIG. 3C, YES is determined in step S1 and the process proceeds to step S2 to execute the menu process. In this case, since the mode key 1b is operated the second time, the menu No. "2" is stored in the menu No. storage unit 5, and the menu (2) is displayed on the display unit 6. That is, the symbols “D”, “R”, “G”, “FIX”, “SCI”, “NORM”, “ENG” corresponding to the menu (2) are displayed on the symbol display section 6b of the display section 6, and the dots are displayed. The numbers “4”, “5”, “6”, “7”, “8”, “9”, “·” are displayed on the matrix display portion 6 a.

Here, in order to specify the SCI mode, as shown in FIG. 3 (4), when "8" is entered with the ten keys 1a, the process proceeds from step S2 to step S3. In step S3, it is determined that the registered number is "8", and the process proceeds to step S12. In step S12, the SCI mode is designated, and the SCI mode is stored in the mode register 3. As a result, as shown in FIG. 3 (4), the cursor "-" is displayed on the dot matrix display portion 6a and the symbol "SCI" is displayed on the symbol display portion 6b.

[0015]

[Effect of the device]

 According to this invention, each symbol representing a plurality of modes is displayed on the display unit, the number corresponding to each symbol is displayed near each symbol, and the mode is designated by the numeric keypad. Therefore, it is possible to provide a compact electronic computer in which the correspondence between the mode types and the mode type instruction keys can be clearly displayed on the display unit and explanations and the like are unnecessary.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a small electronic calculator.

FIG. 2 is a flowchart showing an operation.

FIG. 3 is a diagram showing a display example corresponding to a key operation.

[Explanation of symbols]

 1 ... Key input section 2 ... Control section 3 ... Mode register 4 ... Menu storage section 5 ... Menu No. storage section 6 ... Display section 6a ... Dot matrix display section 6b ... Symbol display section

Claims (1)

[Scope of utility model registration request] 1. A small electronic computer capable of performing statistical calculation, function calculation, etc., a key input means having a ten-key, a mode key, etc., a menu storing means for storing a plurality of mode menus, and a key designated by the ten-key. A mode storage means for storing a designated mode, a display means having at least a plurality of digits and a symbol indicating a mode type, the mode menu displayed on the display means by operating the mode key, and the mode storage when the previous mode is designated. And a control means for clearly indicating a designated mode stored in the means.