JPH0233171B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides an interactive input means for a graphic display found in a CAD system, a map,
A digitizer cursor that is attached to a digitizer cursor (coordinate input device) used as a means of inputting drawing information on printed circuit boards, etc. to input the position coordinates, and makes it possible to clearly identify the coordinate position index point. Regarding the adapter.

[Technical background of the invention and its problems]

The position detection method of the digitizer is electromagnetic induction method,
There are electrostatic induction digitizers, encoder digitizers, etc., and these digitizers use table a as shown in Figure 1.
Then, a coordinate position index point b is placed at the position where the coordinates of the information to be read on the coordinate position detection surface of this table a should be read.
and a cursor c for inputting position coordinates by inputting them together.

Also, recently, instead of inputting the position coordinates from the original bridge (coordinate reading target image) placed on the table a, for example, as shown in FIG. It has been considered to project an image f, such as, on a table a, and input a position coordinate g from the projected image as the read information f'.

However, in the conventional cursor c, a cross mark i is placed on a transparent part h of a transparent glass, transparent resin plate, etc. so that the position coordinate g can be accurately read from above the image to be read. The intersection of the cross marks i is set as a coordinate position index point (hereinafter simply referred to as index point) b. Therefore, the read information projected from the top of cursor c
Regarding f', since the index point b part is transparent, it is difficult to focus the image, and it is also difficult to accurately find the index point b.

Further, when working in a dark place in order to make the projected image clear, there is a problem in that alignment becomes more difficult and highly accurate position coordinates g cannot be input.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to clearly confirm the coordinate position index point of a commonly used digitizer cursor and to provide information to be read from above by projection, etc. However, the present invention aims to provide a cursor adapter for a digitizer that can read the coordinates with high precision and easily, and can further expand the functions and uses of conventional digitizers.

[Summary of the invention]

In order to achieve such an object, the present invention makes the portion of the digitizer cursor that corresponds to the coordinate position index point emit light so that the coordinate position index point can be clearly confirmed.

[Embodiments of the invention]

The present invention will be described below with reference to an embodiment shown in FIGS. 3 to 5. First, the configuration of the digitizer cursor 2 to which the adapter 1 of the present invention is attached will be briefly described. 2 is a coordinate position detection cursor of an ordinary electromagnetic induction digitizer, and this has an input coil 5 wound inside the cursor body (cursor frame) 3 so as to be parallel to the coordinate position detection surface 4a of the table 4. It has a built-in configuration. Both ends of this input coil 5 are connected to an AC signal source 6 via a switch 7 in series, and by pressing a push button 7a of the switch 7 and applying an AC signal to the input coil 5, a magnetic field is generated. . A code 8 connects the input coil 5 in the cursor 2 and the AC signal source 6.

In addition, the part corresponding to the arrangement position of the input coil 5 is made of transparent glass or transparent resin so that the position coordinate g can be accurately read from the top of the coordinate reading target image, as explained in the conventional example (Fig. 2). A transparent part 9 such as a plate is provided, and a cross mark 10 is drawn on this transparent part 9. Then, set the intersection of the cross marks 10 as a coordinate position index point (hereinafter simply referred to as index point) 11, align this index point 11 with the position where the coordinates of the information to be read should be read, press the push button 5a, and turn the switch 7 to "on". By doing so, you can input the position coordinates.

The adapter 1 of the present invention has a cursor 2 having such a configuration.
The part of the cursor 2 that matches the index point 11 emits light. That is, 12 is a frame, which is made of transparent resin such as transparent acrylic. A cylindrical recess 13 is provided in the center of this frame 12.
A light emitting diode 14 as a light source is attached to the bottom of the screen. The issuing diode 14 is connected to a power supply 18 consisting of a series circuit of a ballast resistor 15, a power supply 16 and a switch 17. Further, a projection plate 19 made of colored resin such as white acrylic is attached to the upper part of the frame 12, and the frame 12 and the projection plate 19 constitute an adapter main body 20.
It is housed in a power supply box 21 that is integrated with the power supply box 21.
A cross line 22 is provided on the projection plate 19, and the cross line 22 intersects at the center.
An extremely thin circular hole 23 for guiding the light from the light emitting diode 14 to the outside is bored at the intersection of the two, and the diameter of the light emitting part visible from the top surface of the adapter body 20 is
The minute points are 0.03 to 0.07 m/m, and the visibility and positioning accuracy of the points are balanced.

Further, the projection plate 19 has a rectangular frame cut out so as to straddle the cross line 22, and a part of the cursor 2, that is, the cross line 10, can be seen through from the top side through this cut out part 24. It constitutes a see-through section 25 that can be viewed.

The above is the configuration of the present invention. Next, the operation of the present invention will be explained. When attaching the adapter 1 according to the present invention to a normal digitizer cursor 2, first, the cross line 22 of the adapter 1 and the cursor 2
After aligning the cross line 10 by viewing from directly above the transparent part 25, the cursor 2 and the adapter 1 are fixed with cellophane tape 26 or the like as shown in FIG. As a result, the coordinate position index point 11 of the digitizer cursor 2 and the adapter 1
A circular hole 23 as a light emitting part is bored in the center of the
are arranged on the same axis in the coordinate position detection direction. Next, operate the slide knob 17a to switch the switch 17.
By turning on the power box 2,
The light emitting diode 14 emits light due to the power supply section 18 having a power source 16 and a stabilizing resistor 15 in the adapter 1, and it appears that the circular hole 22 corresponding to the coordinate position index point 11 of the adapter 1 is emitting light.

Therefore, when reading the projected image f' from the top of the digitizer as shown in FIG. position and perform digitizer input. Note that the input method after positioning is no different from the input method of a normal digitizer.

Note that the above is one embodiment of the present invention, and the present invention is not limited thereto. For example, in the embodiment described above, the device is attached to an electromagnetic induction type digitizer cursor, but it may also be attached to an electrostatic induction type or encoder type digitizer or cursor. Further, although the light emitting body is a light emitting diode, other light emitting bodies may be used. Further, although the diameter of the light emitting portion is set to 0.03 to 0.07 m/m, the shape and size may be changed depending on the purpose.

In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

〔Effect of the invention〕

Since the present invention is as explained above, if it is a cursor of a commonly used digitizer,
Can be used for any type. Furthermore, the digitizer can be freely attached and removed depending on how the digitizer is used, and there is no need to modify the digitizer itself. Furthermore, a cross mark is formed on the projection surface of the read information of the digitizer cursor adapter, and the intersection of the cross marks, that is, the coordinate position index point, emits light, so that the read information is projected from above onto the digitizer table surface. In a given case, by attaching the adapter according to the present invention to a digitizer cursor, the index position can be clearly seen and aligned easily and accurately, allowing accurate coordinate position input. In addition, projected images are clearer in dark places, but if you use the adapter according to the present invention, the index point of the cursor will illuminate even in dark places, so you can input coordinates with high precision. Enables the functionality of traditional digitizers,
Applications are further expanded by using the adapter according to the present invention. In addition, since the light emitting body is installed directly at the position index point, it is advantageous in terms of space and cost compared to a system that guides light from a light source installed in another part, and is stable over a long period of time without causing positional shift. This has the effect of being able to input the specified coordinates.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of the digitizer, FIG. 2 is a diagram showing the operating state of the digitizer cursor,
3 to 5 show an embodiment of the digitizer cursor adapter of the present invention, and FIG. 3 is a schematic exploded perspective view showing how it is attached to a cursor;
FIG. 4 is a schematic sectional view of the device attached to the cursor, and FIG. 5 is a diagram showing the operating state of the device attached to the cursor. 1... Adapter, 2... Cursor, 14... Light emitting body, 11... Coordinate position index point, 20... Adapter body, 22... Cross mark, 23... Light emitting part, 25... Transparent part, f' ... Information to be read, g...
Coordinate.

Claims (1)

[Scope of Claims] 1. A digitizer cursor adapter that is attached to a digitizer cursor and allows position coordinates to be input by inputting a coordinate position index point to a position where the coordinates of information to be read are to be read. A cross mark is formed on the upper surface, which is the projection surface of the information to be read, on the opposite side to the contact surface with the digitizer cursor, with the intersection point matching the coordinate position index point of the digitizer cursor, and the intersection point A cursor adapter for a digitizer, characterized in that a light emitting body is provided on the cursor adapter.