JPS60256867A - Miniature electronic device containing graphic arithmetic function - Google Patents

Abstract

PURPOSE:To perform inputs of data simply and smoothly and to decrease misoperations satisfactorily by displaying the patterns at a display part for execution of a graphic operation. CONSTITUTION:When a graphic key 111 of a key input part is first operated, the graphic display data on an address designated by an address designating part 13 is sent to a display buffer 21 from an ROM18 via a character generator CG16 and displayed at a display part 22. In this case, the cursor designating data is supplied to the CG16 from a cursor designating part 14. Then a cursor indicating the input of the numerical data is displayed at the part 22. While the caculation formula data stored in the ROM18 is supplied to a calculation formula data memory part 19. An arithmetic part 15 uses the calculation formula data of the part 19 and the numerical data of a numerical data memory part 20 to perform a graphic operation. This arithmetic result is displayed at the part 22 via a CG17 and a display buffer 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a small electronic device having a graphic calculation function for displaying a graphic on a display unit and performing calculations corresponding to the graphic.

[Prior art and its problems]

2. Description of the Related Art Conventionally, small electronic calculators are generally known that calculate the area of a triangle by inputting the lengths of three sides a, b, and e of the triangle.

However, with such a small electronic calculator that has the graphical wave There was an inconvenience that it took time to enter data because it could not be determined whether the Furthermore, when performing calculations on complex shapes other than triangles, there is a drawback that data input is likely to be incorrect.

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances.
To provide a small electronic device having a graphic wave X function, which allows data input to be easily and smoothly performed, and also allows data input to be performed reliably even in complicated shapes.

[Key points of the invention]

The present invention is provided with a graphic storage unit that stores graphic display data and calculation formula data, and is configured to display a graphic on the display unit and perform calculations related to the graphic.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a circuit configuration of a small electronic device having a graphic calculation function according to the present invention. Data is input to a control section 12 by operating a keyboard provided in a key input section 11. As shown in FIG. Here, the keyboard includes a numeric keypad and various glazed function keys used for normal calculations, as well as a graphic key 111 for specifying the graphic calculation mode, and an enter key for inputting numerical data (in the figure, " E N TJ and ■Was) key 112, Answer (represented as "ANsJ" in the figure) to display the result of graphical operation
key 113, a SKIP key 114 for setting the input position of numerical data, and a NEXT key 115'1 for executing other graphic operations. Now, the control section 12 performs operation control according to data input from the key input section 1, and includes an address specifying section 13, a cursor specifying section 14, an arithmetic section 15, and a character generator (hereinafter referred to as CG) 1g. , No., and inputs control signals to a graphic ROM (graphic storage unit) 18 and a calculation formula data storage unit 19. The address specifying section 13 sends data specifying an address to the graphic ROM 7B based on the data input from the control section 12. This graphic ROM 1B stores a plurality of graphic data consisting of graphic display data and calculation formula data, and among the graphic data at the address specified by the address specifying section 13, the graphic display data is sent to the CG 16 and the calculation formula data. Data is input to the calculation formula data storage section 19 according to a signal input from the control section 12. The calculation formula data storage section 19 outputs the input calculation formula data to the calculation section 15 in response to a signal from the control section 12. This calculation unit 15 is connected to a numerical data storage unit 20, and is configured to perform the following functions: 1. i ( Numerical data sent from the control section 12 is inputted to the numerical data storage section 20 and the above-mentioned CG 17 via the calculation section 15.Then, in this calculation section 15, the above-mentioned W'F Mai 1 data storage Calculation formula data input from section 19,
Graphical operations are performed using the numerical data input from the numerical data storage section 20, and the results of the operations are sent to the CG 17. The above CG16 and 17 are both
The CG 16 outputs display pattern data corresponding to the input data, and the CG 16 is configured to output display pattern data corresponding to the input data.
G17 inputs the corresponding display pattern data to the display buffer 2) according to the control data input from the control section 12 according to the data input from the calculation section 15. This display buffer 21 appropriately adjusts the display pattern data inputted from the CGs 16 and 17 and outputs it to the display section 22.

This display section 22 is of a dot matrix type that can be configured using, for example, a liquid crystal display element, and the display buffer 2
The portion corresponding to the display pattern data input from 1 is driven to display, and graphic data etc. are displayed.

FIG. 2 shows details of the graphic data written in the graphic ROM 7B. Here, the data for performing the fan-shaped graphic calculation is set as the address "0OIJK graphic data 1. This address "'ooIJ is further set as
Address f”001- of the part where graphic display data is stored
1” and the address [00
It is divided into 1-24. The figure display data stored in the address "001-IJ" part is input to the CGI 6 for display on the display unit 22, and includes a fan-shaped figure and an arc "g" attached to the corresponding position of this figure. , area rA
J, central angle “θ”, radius “γ”, calculation formula,
rg-,,+,rγ-'' indicating input data.

It consists of "θ-". Further, the calculation formula data set in the address "001-2" part is stored in the calculation formula data storage unit 1.
9 and used in actual graphical calculations in the calculating section 15, and is composed of the following formulas, similar to the above calculation formula.

Next, the operation of the above embodiment will be explained with reference to the flowchart of FIG. First, in order to set the graphic calculation mode, when the graphic key iii provided in the key operator section 1 is operated, as shown in step S11, among the plurality of graphic data written in the graphic ROM 1B,
Graphic display data in the graphic data at the address specified by the address designation section 13 is input to the CGI 6 by a signal from the control section 12 . This CGI 6 sends display pattern data corresponding to the code of the input figure display data to the display buffer 21. According to the display pattern data sent to the display buffer 21, the CGI 6 sends the display pattern data to the display unit 22 as shown in FIG. Graphical display data as shown will now be displayed. In this case, cursor designation data is input from the cursor designation section I to the CG 16, and in response to this cursor designation data, the cursor for instructing input of numerical data is moved to the display section as shown in step S1□. It will be displayed on 22. Then step S,
Waiting for key personnel at , and if key personnel are available,
As shown below, after determining the operation key, an operation corresponding to the operation key is performed.

That is, first, as shown in step 814, it is determined whether the operation key is the l''NEXTJ key 115. If the operation key is the l'-NEXTJ key 115, the key displayed on the display section 22 in step 8+1 is Since the figure is not based on the figure operation desired by the user, as shown in step Sil+, the addressing section 1
3, the address designation contents of the graphic data inputted to the graphic ROM 1B are r+I J L, and then the operations from step 811 described above are performed. If the operation key is not the 1-1'-NEXTJ key 115, the process advances to step S16, and it is determined whether the operation key is the ANSJ key IJ3.If it is determined that it is the rANsJ key 113, the numerical value To perform calculations after data input,
Step s1. Kk, the input numerical data is
Determine which position in the graphical operation corresponds to. Then, in the Stellar SIM, the calculation formula data in the graphic data written in the graphic ROM 1stg is inputted and written to the calculation formula data storage section 19. After this, as shown in step SI, in the calculation section 15, the calculation formula data storage section 19
Graphical operations are performed using the calculation formula data stored in the numerical data storage section 20 and the numerical data stored in the numerical data storage section 20.

The calculation result data is stored in C as shown in step S20.
The data is sent to G17, and the display pattern data of the calculation result is input into the display buffer 21, and the calculation result is displayed on the display section 22, and the operation ends.

Above step S1. , the operated key is “AN
If it is determined that the key is not the SJ key 113, the process proceeds to step 821, where it is determined whether the key is the "SK engineering P" key 114. If it is determined that the 5KIPJ key 11a is the 5KIPJ key 11a, in step S□, the cursor display position is updated to change the data input position, and then the operations from step S1t are repeated. If it is determined that there is no
At tS, it is determined whether the l'-ENTJ key 112 is pressed. VENT" key 112, it means that numerical data has been entered, so after inputting the entered data into the numerical data storage section 20 in step S, prepare for the next data input. , step S above. Proceed to. Step S. If the [ENTJ key 112 is not pressed, the data input is still in progress, so the operations from step StS described above are repeated.

FIG. 4 shows the graphic calculation operations for the above embodiment. First, in FIG. 4 (1), the figure key 111
3, display data of graphic data 1 as shown in FIG. 2, for example, is read out from the graphic ROMJJ and displayed on the display section 22, as shown in step Stt in FIG.

Here, a cursor for instructing the input of numerical data is displayed in the part of the character "6-J" displayed for instructing the input of the first numerical data, as shown in step Sit. In (2), numerical data “50”
When the number is entered, "50" is displayed next to the display character "l-", and then a cursor is displayed. Next, in FIG. 4(3), when the "ENT" key 112 is operated, the numerical data "5" is displayed as shown in step S24.
0'' is input into the numerical data storage section 2o, and at the same time, as shown in step sty, a cursor is displayed at the position of the character ``γ-'' to indicate the next data input. Here, as shown in Fig. 4 (4), if you enter the numerical data "30" and then operate the "ENTJ" key 112, the numerical data "3oJ" will be displayed in the numerical data storage. 20, and the cursor is displayed at the position of the character "θ-". At this point, numerical data has been input for the fan-shaped arc l and radius γ, so the central angle θ
and area A can be determined by dancing. That is, in FIG. 4 (5), "
When the ANsJ key 113 is operated, step S1. As shown in Figure FLOMI B, the calculation formula data of the figure data 1 written in the figure FLOMI B is read and written in the calculation formula data storage part 9, and then in step 5i11, the figure calculation is performed in the calculation part 15, and the calculation is performed. Result “θ-95,493
. . ” and “A-750J” are displayed at the corresponding positions on the display section 22, as shown in step S.

In the above embodiment, the graphic data is stored in the RQM, but the present invention is not limited to this, and a RAM or other storage element may be used. Furthermore, the display section is not limited to liquid crystal, but may be CRT or FIP.

1.1 Furthermore, the graphic data is not limited to the fan shape shown in the embodiment, but it is also possible to store other graphic data such as a triangle, circle, cone, arc, prism, and sphere.

〔Effect of the invention〕

As described above, according to the present invention, since the figure on which the graphical operation is to be performed is displayed on the display section, data input can be performed easily and smoothly, and the number of erroneous operations can be sufficiently reduced. A small electronic device having xMt capability can be provided.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a block diagram showing the circuit deterioration, and FIG. 2 is a diagram showing the graphic ROM1B.
FIG. 3 is a flowchart showing the details of the operation, and FIG. 4 is a diagram showing an example of display of graphic operations corresponding to key operations. 11...Key human power department, 111...Graphic key, 112
...ENT key, 1" 3...AN8 key, 114
...5KIP key, 115...NEXT key, 12.Contest/control section, 13..Address specification section, 14..Cursor specification section, 15..X specification section, 16.17..
Character generator (CG), J! ? ...Graphic ROM, J! 9... Calculation formula data storage section, 2o...
・Numeric data storage unit, 21...Display buffer, 22.
...Display section.

Claims (1)

[Claims] a figure storage unit storing figure display data and calculation formula data related to the figure display data; means for reading out the figure display data and displaying figures on the display unit; A small electronic device having a graphic calculation function, characterized in that it is equipped with means for executing the calculation using the calculation formula data.