JPS6365943B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic device that changes a scale displayed on a display means in accordance with a processing result.

[Conventional technology]

For example, when drafting or measuring dimensions, it may be necessary to perform numerical calculations such as dividing or multiplying measured distances while applying a scale to the object to be measured. In such cases, conventionally, for example, with the scale still applied to the inclined drawing board,
You must use your free hand to operate a calculator, perform calculations, memorize the numbers, then turn back to the drawing board and move on to the next task, which greatly reduces work efficiency. It is. Also, once the scale is removed from the drawing board, etc., the calculator can be operated with both hands, but it becomes a tedious task to adjust the scale exactly to the spot where it was previously applied, and it may be difficult to memorize the numbers. You may forget something or make a mistake, which also reduces work efficiency. In times like this, it would be ideal if calculations could be performed immediately while applying the scale and move on to the next task without misjudging the numbers, but in the past this was not possible. .

[Problem that the invention seeks to solve]

As mentioned above, although the work of using scales and the work of calculating are closely related, the actual scale and calculator are not related in any way in terms of structure, so work efficiency has been extremely low.

[Means and actions for solving problems]

The present invention outputs information on the results calculated by a computer to a display means, such as a scale, that displays at least a pair of scales representing a predetermined distance, and changes the scale intervals displayed on the display means. The above-mentioned scale (display means) and calculator are connected as inseparable components by working in this way.

〔Example〕

FIG. 1 shows a front view of an electronic device according to an embodiment of the present invention.

1 is a scale display composed of a liquid crystal display element;
2 is a numerical value display for a calculator, 3 is a keyboard for a calculator,
4 is a scale changeover switch, 5 is a scale changeover switch, 6 is a power switch, and 7 is a scale display section.
Numerical data from the keyboard 3 is arithmetic processed in accordance with commands from the arithmetic command keys, stored in a memory, and the display 2 notifies the operator of the structure, which is similar to the structure of a well-known calculator. FIG. 2a is a liquid crystal display (cross-sectional view) showing an example of the structure of the scale display 1 shown in FIG.
Transparent electrodes 17 and 18 are formed on 1 and 12, respectively, to sandwich the liquid crystal material 14, and a constant gap is maintained by a spacer/sealing material 13, and polarizing plates 15 and 16 are arranged. 19 is a reflecting plate.

FIG. 2b is an enlarged explanatory view of the structure of the transparent electrode as seen from the operator 20 in a, and shows the transparent electrode 17,
Liquid crystal material 14 by applying an electric field between 18
The orientation of the electrodes changes, and the overlapping parts of the electrodes arranged in a scale become visible as diagonal lines. In this embodiment, transparent electrodes are provided to form a scale with a pitch of 0.5 mm.

FIG. 3 is a circuit block diagram of FIG. 1, in which binary numerical data input from the keyboard 3 is stored in a memory register 35 via an arithmetic circuit 36. This numerical data is converted into a display form by a decoder circuit 34, and is supplied to the numerical display 2 by a numerical display driver 32, where it is displayed in decimal format in a 7-segment format or the like. It is well known that the contents displayed by the numerical display will change in response to changes in the contents of the memory register due to arithmetic instructions from the keyboard 3.

4 and 5 are switches having the function of selecting the scale displayed on the scale display 1 in FIG.
5 is a scale changeover switch, and 5 is a scale changeover switch. The signals from the scale changeover switch 4 and the scale changeover switch 5 and the memory register 35
The scale decoder 33 inputs the numerical data from the scale decoder 33 and converts it into scale information.

The scale decoder 33 selects the position of the binary numerical data on the scale and at the same time selects the scale to be displayed.The scale decoder 33 transfers the output signal to the scale display driver 31 and uses the information to display the scale display 1. Display a scale on. It also displays a scale display section 7 that displays which scale is being used to display the scale by means of the scale changeover switch 4 among the information displayed on the scale display in FIG.

Figures 4 a to c show the difference in display when the scale changeover switch 4 is switched, and a is an enlarged view of the display state of the scale when 5 is placed at the scale S = 1/2 position. This is what I did. 10mm
(Actual size) In other words, there are 21 graduations displayed within 10mm on the scale, so the pitch of one graduation is 0.5mm. If you measure dimensions using this scale, and one division is 1 mm, you can read the dimensions of a drawing drawn at 1/2 scale as actual size. Conversely, if you draw a drawing using this scale, you can similarly draw a drawing at 1/2 scale. 7 displays S=1/2. Similarly, b is a changeover switch 4 to the position of scale S=1/1.
This is the display state of the scale when placed.
Since 11 scales are displayed between 10mm (actual size), the pitch of each division is 1.0mm, making it a scale with 1mm pitch per division, the same as a normal scale.
7 displays S=1/1. Similarly, c is also the scale S
This is the display state of the scale when the switch 4 is placed in the =2/1 position. Since 6 scales are displayed between 10mm (actual size), the pitch of 1 scale is 2.0mm, and 1 scale is 1 scale.
If you measure the dimensions in mm, you can think of the drawing in scale 2/1. 7 displays S=2/1.

Further, if the scale is considered to be 1/1 (actual size), the scale changeover switch 4 becomes a scale scale variable pitch switch, and has the function of selecting the pitch of the scale according to the purpose of use.

5a to 5d show the differences in display when the scale display mode changeover switch 5 is changed, and a shows the state of position F. Position F is shown on the numerical display 2.
This is a mode in which all scale marks are displayed at the scale pitch selected by the scale changeover switch 4, regardless of the information displayed on the scale.
(S=1/1 in the figure) b indicates the state of position H.
Position H is the numerical data displayed on the numerical display 2 as shown in the figure.
Display up to the position. The scale is S=1/1.

c shows the state of position S. Position S is shown on the numerical display 2.
The numerical data displayed in the diagram, in which 65 is replaced with the length in millimeters, is the same as in the case of position H, but only the scale corresponding to 65 mm and the scale corresponding to 0 mm are displayed. Therefore, it is possible to directly convert the calculation result into a length and express it, and according to positions H and S, it is possible to obtain the length without misreading the scale.

d, set scale changeover switch 5 to position H, scale changeover switch 4 to S = 2/1, and set 65
This is an example of displaying mm, and is a diagram expressing 65 mm (that is, actual size 130 mm) on a scale of 2/1/. Note that the scales used in the embodiment are 1/2, 1/1, and 2/1, but other scales are possible depending on the circuit configuration.

FIG. 6 is a configuration diagram showing an example of the electrode configuration of the scale display 1, and shows a common electrode group 101 to 102.
and a scale electrode group 111 provided opposite thereto.
112. Scale electrode group 11
1 to 112 are divided into groups A, B, and C as shown in FIG. 7a, and are divided into electrode groups A, B, and C as shown in the truth table of FIG. B and C can be selected and the respective electrode groups or scales can be selectively displayed using the respective scale display drivers 31A, 31B and 31C.

Figures 8a to 8c are explanatory diagrams showing the state, where a is a scale for scale 1/2, and electrode groups A, B,
All C are selected and displayed, b is the scale for the scale 1/1, electrode groups B and C are displayed on the calculator, and c is the scale for the scale 2/1.
1 shows a state in which only electrode group C is selectively displayed on the scale.

As explained above, according to the present invention, the scale pitch can be variably displayed using the scale scale changeover switch, and the input numerical value and the calculation result numerical value displayed on the numerical display section can be replaced and displayed on the scale scale, and By varying the scale, the display length of the scale scale changes in conjunction with the display length, which has a number of advantages, allowing the user to improve work efficiency.

FIG. 9 is a block diagram of an embodiment of the present invention, in which a distance L from a base point M is inputted as an electrical signal by moving a cursor K. Electrodes 43 and 44 are provided at both ends of the resistor 40, and a power source 4 is connected between the electrodes.
2, apply voltage E. and the resistor 40
A slider 41 is provided which freely slides on the top of the
This slider 41 is connected to the cursor K,
By moving the cursor, this slider can be changed to resistor 4.
Move above 0.

Now, assume that the slider 41 is located at a distance l ₂ from the end face on the electrode 43 side. Then, a potential of l ₂ /l ₁ ·E can be extracted from the slider 41. This potential is proportional to the distance l ₂ . The voltage is then input via a lead wire 45 to a voltage frequency converter 46 whose oscillation frequency changes in proportion to the voltage. The signal converted to a certain frequency by the voltage frequency converter 16 passes through the signal line 47 to the 4
It is sent to the arithmetic processing unit No. 8. When key switch 8 is pressed here, the frequency of the input signal is counted and converted to a value appropriate for the distance l ₂ .
to display the distance. For example l ₁ is 30cm, l ₂ is 12
cm, E is 3V, and the voltage frequency converter 46 has a very high input impedance.
There is a 1.2V input. Assume that the oscillation frequency is 1.2KHz when the input is 1.2V. Then, the arithmetic processing unit 48 first counts this frequency for one second and obtains a numerical value of 1200. If you divide this value by 100 and display it, you can display the value in cm,
Also, by dividing this value by 254 and displaying it, the value in inches can be displayed on the numerical display 2.

〔Effect of the invention〕

As described above, in the present invention, input or calculated numerical information can be converted onto a scale mark and displayed as it is on a dimensional scale, or the scale can be displayed on a reduced scale or multiplied scale by selecting a reduced scale or a multiplied scale. By making it possible to display information, it is expected that users, especially functional design engineers, will be able to improve design efficiency and prevent measurement errors.

In addition, by combining it with a small calculator, you can quickly perform numerical calculations such as separating measured distances while applying the scale to the object to be measured, and performing multiplication by several times.

Furthermore, by using a cursor, the distance between two points can be used as data for arithmetic calculations, so there is no erroneous input of data, and various tasks can be performed efficiently.

As described above, according to this embodiment, the value measured with the cursor does not need to be entered from the keyboard one by one, so there is no input error, and the value can be used for four arithmetic calculations such as multiplying or dividing the value. This makes it possible to work more efficiently. Further, the display unit can be measured in various desired units such as centimeters, inches, feet, etc., and troublesome unit conversion calculations are unnecessary.

[Brief explanation of drawings]

FIG. 1 is a front view showing the appearance of an embodiment of the present invention, FIGS. 2a and 2b are sectional views and enlarged explanatory views showing the structure of a liquid crystal display, respectively, and FIG. 3 is an embodiment of the present invention. FIGS. 4a to 4c are explanatory diagrams showing display examples of the display, FIGS. 5a to d are explanatory diagrams showing display states based on usage examples displayed on the display, and FIG. The figure is a block diagram showing an example of the electrode structure of the display, FIG. 7a is a block diagram showing an example of the structure of the scale electrode group, FIG. Figures 8a-c are Figure 7b
FIG. 9 is an electric circuit block diagram showing a configuration for outputting data on the cursor position in the present invention. DESCRIPTION OF SYMBOLS 1... Scale display, 2... Numerical display, 3... Keyboard for numerical input and command input, 4... Graduation scale changeover switch, 5... Scale changeover switch, 6... Power switch, 7... Scale display section, 11, 12... Glass substrate, 13... Spacer, 14... Liquid crystal substance, 1
5, 16... Polarizing plate, 17, 18... Transparent electrode, 31
...Scale display driver, 32...Numeric display driver, 33...Scale decoder, 34...Decoder circuit, 35...Memory register, 36...Arithmetic circuit, 4
0...Resistor, 101, 102...Common electrode, 11
1,112...Scale electrode, K...Cursor.

Claims (1)

[Claims] 1. A first mode in which all scale marks are displayed or a second mode in which a predetermined range of scale marks is displayed.
a scale display for displaying scales corresponding to the respective modes; a numerical display for displaying numerical values; a keyboard for inputting the numerical values to be displayed on the numerical display; a scale changeover switch for selecting the first mode or the second mode; and a scale changeover switch for displaying all scale marks on the scale display when the scale changeover switch selects the first mode; and a scale display control means for controlling the scale display to display scale graduations only within the range of the numerical value displayed on the numerical display when mode 2 is selected. .