JPS5922605Y2 - Graphic input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a graphic input device that extracts a desired local area on a digitizer screen and allows manual input with higher precision than visual error.

Conventionally, in order to obtain digital data for a pattern to be formed on a printed board, etc., a basic pattern is printed on a screen with a matrix grid as shown in screen 1 in Figure 1, using the keyboard, function keys of the cursor 4, and digitizer control. Input is performed by cursor control using the so-called menu 2, which is made up of special symbols etc. controlled by the section.

The data of the graphic pattern on the screen is sent from the digitizer control section to the grid pattern memory via the grid pattern memory control section and stored therein.

The CRT monitor 3 is a display device for enlarging or reducing a portion of a graphic pattern for monitoring.

Currently, the inherent positional accuracy of digitizers is possible at 10 to 20 μm, but the visual error is about 50 μm.
It is not possible to input data with a precision higher than 0 μm.

For normal pattern edges, an accuracy of about 50 .mu.m is sufficient, but for parts with somewhat complex shapes, this accuracy is insufficient and there are cases where the digitizer's inherent accuracy of about 10 to 20 .mu.m is desired.

An object of the present invention is to provide a graphic input device that can manually input graphic patterns on a screen with higher accuracy than the visual accuracy of a digitizer screen.

In order to achieve the above-mentioned object, the graphic human-powered device of the present invention has a screen for displaying a grid configured in a matrix, and a digitizer for inputting a desired graphic pattern by selecting the grid using handwriting means; a monitor display device for monitoring a graphic pattern; a means for enlarging and displaying the grid on the monitor display device; and inputting a desired graphic pattern by selecting the grid on the enlarged local screen using handwriting means. It is characterized by having the means.

The present invention will be described in detail below with reference to examples.

FIG. 2 is an explanatory diagram showing the configuration of an embodiment of the present invention.

The same parts as in FIG. 1 are given the same numbers.

In the figure, data from a digitizer 1 is normally stored in a grid pattern memory 14 from a control section 15 via a digitizer control section 10 and a grid pattern memory control section 13 using a keyboard and a cursor 4.

In this configuration, if you input directly from the screen of the digitizer 1, it is impossible to input with an accuracy of 50 μm or more due to visual error, so if you want to input with an accuracy of about 10 μm, for example, you can use the keyboard and cursor 4.
Under the control of the digitizer controller 10, the memo controller 1 monitors a part of the grid pattern P of the digitizer via the digitizer controller 10.
1 to access the monitor memory 12.

The data stored in the monitor memory 12 in this way is input to the monitor enlargement circuit 16 in the monitor display circuit 20, and the grid pattern near the point P on the part of the digitizer is controlled by the keyboard and cursor control unit 15. The image is enlarged and displayed on the CRT monitor 3 via the CRT control section 18.

Next, the light pen control section 22 that controls the light pen 21 is operated via the keyboard and cursor control section 15 to perform high-precision input using the light pen without using a cursor.

“Then, the portion P indicated by the CRT monitor 3 is transferred to the monitor memory 12 via the monitor memory controller 11.

As described above, after inputting the data of the part that causes human visual error, the contents of the monitor memory 12 are loaded into the grid pattern memory 14 by keyboard control.

Next, the digitizer control unit is selected by keyboard cursor control, and the data of the digitizer 1 is stored in the grid pattern memory 14 in the normal procedure described above.

The monitor reduction circuit 17 in the monitor display circuit 20 is used when displaying the entire digitizer on the CRT monitor 3.

As explained above, according to the present invention, when it is necessary to input data with particularly high precision on the digitizer screen, that part is locally enlarged and displayed on the monitor display device, and a light pen is used to input data with high precision. When inputting directly from the digitizer screen, the visual error is limited to about 50 μm, but since it is possible to input with high precision up to the digitizer's inherent error of about 10 μm, it is possible to By applying it to one portion, a pattern with substantially high precision can be created.

[Brief explanation of the drawing]

FIG. 1 is a general explanatory diagram of a digitizer, and FIG. 2 is an explanatory diagram showing the configuration of an embodiment of the present invention, in which 1 is a digitizer, 3 is a CRT monitor, 4 is a keyboard and cursor,
10 is a digitizer control unit, 11 is a monitor memory control unit,
12 is a monitor memory, 13 is a grid pattern memory control section, 14 is a grid pattern memory, 15 is a keyboard and cursor control section, 16 is a monitor enlargement circuit,
18 is a CRT control section, and 20 is a monitor display circuit.

Claims (1)

[Scope of utility model registration request] A digitizer that has a drawing that displays a grid configured in a matrix, and that selects a desired graphic pattern manually by handwriting on the grid; a monitor display device that monitors the graphic pattern; and a monitor display device that monitors the graphic pattern. A graphic input device comprising: means for enlarging and displaying the grid; and means for inputting a desired graphic pattern by selecting the grid on the enlarged local screen using handwriting means.