JPH0543251U - Small electronic calculator - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a compact electronic computer that realizes a hierarchical structure of menu display with a simple design without using a menu stack. [Structure] When the "PRE" key is operated while the menu is displayed, it is judged whether or not code 1 in the menu code is "0" (step S1). If code 1 is not "0", code 1 is changed to "0". To return the menu hierarchy to the hierarchy one level higher (step S3), and display the menu corresponding to the menu code (step S8). If the code 1 is "0", it is determined whether the code 2 is "0" (step S2),
If the code 2 is not "0", the code 2 is rewritten to "0" to return the menu layer to the next higher layer (step S5).
Display the menu corresponding to the menu code. Furthermore,
If both codes 1 and 2 are "0", it is judged whether or not code 3 is "0" (step S4). If NO, the code 3 is rewritten to "0" and the menu display is erased (step S6).
7).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a small electronic computer that displays a menu.

[0002]

[Prior Art]

 A small electronic computer with a function function displays the names of functions that can be operated in a menu and selects them by key input to execute the function operation. In this case, the menu display is hierarchical and there are a series of connections on multiple menu screens.

[0003]

[Problems to be solved by the device]

 In such a menu display, in order to return to the previous menu, a menu stack is required, and complicated processing of the menu stack and overflow of the menu stack have to be taken into consideration, which makes the processing troublesome. The present invention has been made to solve the above problems, and an object thereof is to provide a small-sized electronic computer that realizes a hierarchical structure of menu display with a simple design and without using a menu stack.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a menu display means for displaying a menu, a first storage means for storing a menu code indicating a hierarchical structure of the menu display and a plurality of corresponding menu contents. Second storage means for temporarily storing the menu code, and rewriting means for rewriting the menu code stored in the second storage means by operating a specific key into a menu code representing a one-level upper layer menu. And display control means for reading the menu content corresponding to the menu code stored in the second storage means from the first storage means and displaying it on the menu display means.

[0005]

[Action]

 The operation of this device is as follows. The menu code read from the first storage means is temporarily stored in the second storage means. The menu corresponding to the menu code stored in the second storage means is read from the first storage means and displayed on the menu display means. When the specific key is operated in the display state of the menu, the rewriting means rewrites the menu code stored in the second storage means into the menu code in the upper layer of one stage. The menu corresponding to the rewritten menu code is read again from the first storage means and displayed on the menu display means.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view showing an external configuration of a small electronic computer 1. As shown in the figure, the small electronic calculator 1 is provided with a key input unit 2 and a display unit 3. The key input unit 2 includes the ten keys “0” to “9”, the four arithmetic keys “+” to “÷”, the “F1” to “F6” keys, the “ALPHA” key, the “FUNC” key, A "PRE" key and the like are provided. The display unit 3 displays the input numerical data and also displays a menu of functions, unit names, alphabet characters and the like. The "FUNC" key is a key for reading out a menu of functions and unit names of menu Nos. 1 to 9 shown in FIG. 3 which will be described later. Similarly, the "ALPHA" key is a key for reading the menu of alphabetic characters of menu Nos. 10 to 15 shown in FIG. The "F1" to "F6" keys are keys for designating the functions, unit names and alphabetic characters displayed on the menu. The "PRE" key is a key for returning to the previous menu when displaying each menu.

FIG. 2 is a block diagram showing a circuit configuration of the small electronic computer 1. When the key input section 2 inputs a key, a key input signal is input to the CPU 4. The CPU 4 takes in a key input signal from the key input unit 2 and executes various processes based on a control program stored in a memory (not shown). Also, a display drive signal is output to the display unit 3 to perform a display operation. As shown in FIG. 2, the ROM 5 stores in advance a menu code of "100" to "250" representing a hierarchical structure of menu display and a plurality of menu contents (patterns) corresponding to this menu code. .. The RAM 6 temporarily stores the menu code read from the ROM 5.

FIG. 3 is a diagram showing a hierarchical structure of menu display. That is, the menu display is roughly divided into a "FUNC menu" and an "ALPHA menu". Below the “FUNC menu” are located “TRIG”, which is a group of trigonometric functions, “MATH”, which is a group of other functions, and “UNIT”, which is a group of unit names. Below this “UNIT” are grouped unit name groups “KE”.

In addition, in the lower layer of “TRIG”, “NRM” which is a group of normal trigonometric functions, “ARC” which is a group of inverse trigonometric functions, “HYP” which is a group of logarithmic trigonometric functions, and It is located with "ARCHYP", which is a group of logarithmic trigonometric functions.

Further, in the lower layer of the “ALPHA menu”, there are a character group “A to F”, a character group “G to L”, a character group “M to R”, and a character group “S to X”. , The character group “Y to Z” is located. The circled numbers 1 to 15 in FIG. 3 indicate the menu numbers in the menu display.

FIG. 4 is a diagram showing a correspondence relationship between menu numbers and menu codes. As shown in FIG. 4, the menu code is composed of three-digit numbers of code 3 to code 1. Here, the number of code 3 represents the upper menu hierarchy, and the case of "1" corresponds to the "FUNC menu" and the case of "2" corresponds to the "ALPHA menu". The number of code 2 represents the middle menu layer, and the number of code 1 represents the lower menu layer.

Next, the operation of the above embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a flowchart showing the operation when the "PRE" key in the key input unit 2 is operated. In this case, the menu code corresponding to the menu display displayed on the display unit 3 is stored in the RAM 6. The "PRE" key is a key for restoring the menu display. If the "PRE" key is operated while the menu display is displayed, the processing of FIG. 5 is started.

In step S1, it is determined whether or not the code 1 in the menu code stored in the RAM 6 is "0". If YES is determined in step S1, the process proceeds to step S2, and if NO is determined, the process proceeds to step S3.

If the code 1 is not “0” (for example, the menu code “113”), the process proceeds from step S 1 to step S 3. In step S3, the code 1 is rewritten to "0" to return the menu layer to the layer one level higher, and the process proceeds to the menu display process in step S8. As for details of the menu display processing, as shown in FIG. 6, the pattern corresponding to the menu code stored in the RAM 6 is read from the ROM 5, and the menu corresponding to the menu code is displayed on the display unit 3. That is, when the menu code is, for example, "113" and the menu No. 3 is displayed, when the "PRE" key is pressed, the menu code becomes "110" and the menu No. 2 is displayed.

When the code 1 is “0”, the process proceeds from step S1 to step S2. In step S2, it is judged whether or not the code 2 in the menu code stored in the RAM 6 is "0". If YES is determined in step S2, the process proceeds to step S4, and if NO is determined, the process proceeds to step S5.

If the code 2 is not “0” (for example, the menu code “110”), the process proceeds from step S 2 to step S 5. In step S5, code 2 is rewritten to "0" to return the menu layer to the layer one level higher, and the process proceeds to step S8. In step S8, similarly to the above, the pattern corresponding to the menu code stored in the RAM 6 is read from the ROM 5 and displayed on the display unit 3. That is, if the "PRE" key is pressed while the menu code is "110" and the menu No. 2 is displayed, the menu code becomes "100" and the menu No. 1 is displayed.

When the code 2 is “0”, the process proceeds from step S2 to step S4. In step S4, it is determined whether or not the code 3 in the menu code stored in the RAM 6 is "0". That is, in step S4, it is determined whether the menu code is "000". If YES is determined in the step S4, the menu is not displayed, and the process of FIG. 5 is ended. If NO in step S4, the menu code is "100" or "200", and thus the process proceeds to step S6.

In step S6, code 3 is rewritten to "0" to set the menu code to "000", and the process proceeds to step S7. In step S7, the menu display is erased and the processing of FIG. 5 ends.

[0019]

[Effect of the device]

 According to this invention, since the menu code itself has the hierarchical structure of the menu, the hierarchical structure of the menu display can be realized without using the menu stack, and a specific key such as the "PRE" key can move up one step. The process of returning to the hierarchy can be easily realized.

[Brief description of drawings]

FIG. 1 is a front view showing the appearance of a small electronic calculator.

FIG. 2 is a block diagram showing a circuit configuration of a small electronic calculator.

FIG. 3 is a diagram showing a hierarchical structure of menu display.

FIG. 4 is a diagram showing a correspondence relationship between menus and menu codes.

FIG. 5 is a flowchart showing an operation.

FIG. 6 is a flowchart showing an operation.

[Explanation of symbols]

 1 ... Compact electronic computer 2 ... Key input unit 3 ... Display unit 4 ... CPU 5 ... ROM 6 ... RAM

Claims (1)

[Scope of utility model registration request] 1. A first menu storing means for displaying a menu, a menu code representing a hierarchical structure of the menu display, and a plurality of menu contents corresponding thereto.
Storage means, second storage means for temporarily storing the menu code, and the menu code stored in the second storage means by operating a specific key into a menu code representing a one-stage upper layer menu. Rewriting means for rewriting, and display control means for reading the menu content corresponding to the menu code stored in the second storage means from the first storage means and displaying it on the menu display means are provided. And a small electronic calculator.