JPS5853372B2 - tablet device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tablet device that associates pre-classified items with coordinate positions and inputs classification items by selectively indicating the coordinate positions using light or magnetism.

When organizing documents and managing inventory using a computer system, a tablet device is used as a terminal input device for inputting classification items and the like.

For example, as shown in FIG. 1, this tablet device is composed of a plurality of magnetic loops 1 arranged in a matrix corresponding to coordinate positions, and a magnetic pen 2 that selectively applies a magnetic field to these magnetic loops 1. .

That is, the magnetic pen 2 is energized by the high frequency power source 3 and emits a high frequency magnetic field.

When the magnetic pen 3 is used to indicate a specified item on the mask 4 on which classification items are written in advance, a current is generated in the magnetic loop 1 disposed at the bottom of the mask 4 by the magnetic field. Ru.

This current is detected by the coordinate position detector 5, and the coordinate position information is output.

This coordinate position information is used as input information to the computer system, and predetermined processing is performed within the computer.

Conventionally, in this type of tablet device, the coordinates of the tablet correspond to the 40 classified mask items, and the coordinates of the tablet are prepared as many times as there are 40 mask items (the number of squares).

Therefore, increasing the number of classification items will inevitably require many coordinate positions, that is, many magnetic loops 1, and as a result, the tablet part on which the magnetic loops 1 are placed will become larger and more complex, making it difficult to use. Ta.

There is also a tablet device that uses a page-style mask to selectively assign classification items, but in this page-style tufflet device, the method is usually to place the tablet at the bottom and stack multiple masks on top of it. Therefore, there is a drawback that the coordinate detection ability decreases as the number of masks increases.

Furthermore, page-type tablet devices require troublesome operations such as turning the pages.

Furthermore, in conventional tablet devices, the mask was made of a fairly hard material such as plastic, so the mask did not have good operability.

The present invention was made in consideration of these circumstances, and its purpose is to simplify the device, improve the operability of the mask, and reduce the cost. The goal is to provide a tablet device that can be operated manually.

Embodiments of the apparatus of the present invention will be described below with reference to the drawings.

FIG. 2 is a schematic diagram showing an embodiment of the apparatus of the present invention.

In the figure, reference numeral 11 denotes a tablet support, and this support 11 is manually moved on a table (not shown) along guide rods 10at10b.

This tablet support 11 is provided with a translucent window 12 made of glass or the like, so that classification items 13a written on a mask 13, which will be described later, are selectively displayed.

Further, a plurality of magnetic roofs are arranged in a matrix on the glass of the window portion 12, and the indicated position of the magnetic pen is detected from the current generated in the magnetic loop.

Reference numeral 14 in the figure is an ID number display window, in which the ID number 13b written on the mask 13 is displayed, and is detected by illuminating the ID number part from a light source (not shown) and photoelectrically converting the transmitted light. .

The mask 13 is made of a flexible celluloid film, for example, and the gear mechanism 1 meshes with a sprocket (through hole) 15 bored in the side of the mask 13.
Movement is controlled by 6.

As a result, an arbitrary partial area of the mask 13 is displayed on the table.

The mask 13 is inserted through the slit 11a of the tablet support 11, and selectively assigns classification items to the respective coordinate positions of the window 12.

Note that the plurality of classification items are sequentially written on the mask 13 according to a predetermined rule.

Further, as shown in FIG. 3, both ends of the mask 13 are wound around rollers 17a and 17b, and the mask 13 is wound and unwound to move within the slit H1a.

The mask 13 is not described in detail, but as shown in FIG. 4, it is in an endless shape stretched between rollers 18.
Even if it is in the form of L・.

The movement of the mask 13 provided in such a freely movable manner is controlled by, for example, a pulse motor, that is, as shown in FIG. 5, a push button switch 51 provided on the table
When the switches a and 51b are selectively turned on, this switch operation is detected by the switch-on detection circuit 52a>52b.

This detection result is input to the moving direction detection circuit 53, and the closing switch of the switch 51at51b is detected.

These detection information are input to a pulse motor drive circuit 54, and a ζ pulse motor 55 is operated to drive the gear mechanism 16 and rollers 17a, 17b.

In other words, the pulse motor drive circuit 54 consists of a pulse oscillator, a gate circuit, etc., and is based on the previously detected information.
・Outputs rotation direction designation signal and pulse signal.

Therefore, the pulse motor 55 is operated by the push button switch 51a.
, 51b, the mask 13 is rotated and moved in the specified direction for the above-mentioned input period.

In this manner, the mask 13 is moved in a desired direction by operating the pushbutton switches 51a, 5lb, and the desired classification item is made to correspond to the tablet.

After that, use the magnetic pen to indicate the position on the tablet where the classification item is located, and the tablet will display it.

Tablet coordinate position information for the above classification item is output.

At this time, the position of the mask 13 with respect to the tufflet is detected using the ID number, and this position information is also output.

Therefore, from the position information of the mask 13 and the tablet coordinate position information, the specified classification item among the plurality of classification items is uniquely determined and input into the computer system.

According to the device configured in this way, the number of classification items written on the mask 13 can be greatly increased relative to the coordinate capacity (number of coordinate positions) of the tablet.

Then, after displaying the classification items of the roughly selected partial area of the mask 13 containing a large amount of classification items on the table, a desired classification item therein is made to correspond to the tablet surface of the tablet. , you can easily input the information of the classification item.

Therefore, the device can be simplified and the cost can be reduced.

Moreover, it is possible to input many classification items by effectively utilizing the small number of tablet items, and its handling is very simple.

Furthermore, since a flexible mask is used to make the mask movable, the mask capacity can be increased, and the mask can be moved at high speed, improving operability.

Furthermore, since the mask is flexible, it can be rolled up, and endless masks can be provided, so the device can be made compact even though it has a large capacity.

Furthermore, if the list is endless, it is possible to easily search for desired items in a short time.

FIG. 6 shows another embodiment of the device of the present invention.

In this embodiment, reference windows 61 and 62 are added to the tablet support 11 of the previously described embodiment.

That is, the reference window 6L62 is made of translucent glass with a magnetic roof provided therein, so that the classification items 13a written on the mask 13 can be visually recognized.

Further, a 1-bit code (ID number) is assigned to the mask 13 corresponding to each row of the classification item 13a.

In other words, the above codes are code strings arranged in series in the moving direction of the mask 13, and the code strings of adjacent several bits are selectively displayed by the ID number display window 63 provided on the tablet support 13.・Ru.

The code string indicated in the ID number display window 63, that is, the ID number 13c, consists of, for example, an M sequence (maximum flame shift register sequence), and the code code corresponding to the mask 130th ff1K is displayed and detected.

In addition, 64 in the figure is a magnetic pen that indicates the classification item displayed on the tablet, and also uses a reference window 6L62 to be described later.
The movement of the mask 13 is controlled by giving instructions.

The control circuit of the tablet device configured in this way is the seventh
It is configured as shown in the figure.

In the figure, 7L72 is a magnetic loop disposed in the reference windows 61 and 62, which generates a current when directed by the magnetic pen 64.

This current is detected by indicator detectors 73 and 74.

The detection outputs of these instruction detectors 73 and 740 are connected to the OR circuit 7.
5 and a flip-flop 760.
The set and reset terminals are manually operated.

This flip-flop 76 applies a rotation direction designation signal to the motor 77 that designates the rotation direction of a motor 770 for moving and driving the mask 13 .

On the other hand, the signal ORed via the OR circuit 75 is input to the monostable multivibrator γ8, and is also ORed with the output of the monostable multivibrator 78 via the OR circuit 79.

The output of the OR circuit 79 controls the opening and closing of the gate circuit 80, and controls the output of the driving pulse signal for the motor 77 generated from the pulse oscillator 81.

Note that 82 in the figure is a high frequency power source that applies a high frequency signal to the magnetic pen 64.

The operation of the device configured as described above will be explained with reference to FIG.

Now, the desired classification item is not compatible with the tablet 12,
Assume that it is displayed in the reference window 61.

At this time, the mask 13 is moved using some means,
It is necessary to make the desired classification item correspond to the tablet.

In this case, when the reference window 61 is pointed with the magnetic pen 64, a current is generated in the magnetic loop 71 by the magnetism generated by the magnetic pen 64.

This current is detected by an indication detector 73, and a flip-flop 76 specifies the direction of rotation of the motor 77.

At the same time as this designation of the rotation direction, the gate circuit 80 is opened, and the pulse signal from the pulse oscillator 81 is transmitted to the motor 77.
is applied, and the motor 77 rotates.

The mask 13 is moved by the rotation of the motor 77, and the desired classification item described above corresponds to the tablet 12.

That is, when the reference window 61 is pointed with the magnetic pen 64, as shown in FIG.
3, a HIGH level signal is also output.

This HIGH level signal opens the gate circuit 80 via the OR circuits 75 and 79 and sets the flip-flop 76.

Further, the monostable multivibrator 78 is set to the HIGH level.
The falling edge of the level signal is detected and a HIGH level signal is output for a preset period T2 as shown in the figure.

Therefore, from the OR circuit 79, as shown in FIG.
+T2, a HIGH level signal is output, and the gate circuit 80 is opened.

Then, a pulse signal as shown in FIG. 8d is supplied to the motor 77, and the mask 13 is moved.

Note that the period T2 set by the monostable multi-by-break 78 is determined according to the specifications of the device.

Thereafter, by indicating a desired classification item corresponding to the tablet 12 with the magnetic pen 64, the coordinate position information of the classification item and the ID number 13c indicating the position information of the mask 13 are detected and output.

Thus, the desired classification items are entered here.

As described above, according to the device of the present invention, it is possible to move the mask 13 and input a desired classification item by an extremely simple operation.

In addition, the capacity of the tablet is smaller than that of conventional devices,
Moreover, all coordinate positions can be used uniformly and effectively.

In addition, since the mask 13 is made flexible, the mask 1
3. The parts that are not displayed can be easily stored and made compact.

Therefore, it is possible to realize a tablet device with a small size and large capacity, and also to reduce the number of both paths.

Furthermore, from the classification items displayed in the reference windows 61 and 62, the approximate location of the desired classification item can be quickly known;
Handling is simplified.

Furthermore, since the mask 13 moves for a predetermined period of time after the mask 13 movement instruction operation, alignment to the tablet is easy.

For example, if the mask 13 is moved until the desired classification item is displayed in the reference windows 61, 62, the reference window 61, 62
There are advantages such as the desired classification item displayed in 1.62 is automatically placed on the tablet.

Note that the present invention is not limited to the above embodiments.

For example, it goes without saying that the classification item capacity of the tablet and mask 13 may be set according to its specifications, and the material, ID number, etc. of the mask 13 may also be set as appropriate according to its use.

Furthermore, although the above embodiment has been described using a magnetic tablet as an example, the same structure can be made using an optical tablet using a light emitting diode and a light pen.

Furthermore, various means for moving the mask 13 can be used, and the control circuit thereof may be designed according to the specifications.

Furthermore, the external shape of the device is not limited at all.

In short, the present invention can be implemented with various modifications without departing from the gist thereof.

As described in detail above, according to the present invention, a tablet with a small capacity is effectively used to selectively correspond to a mask in which a large capacity classification item is written with a simple operation, and a desired classification item can be easily selected. can be entered.

Moreover, by making the mask flexible, the apparatus can be made smaller, and the positioning of the classification items and the tufflets can be easily performed by the action of the timer.

Therefore, it is possible to provide a tablet device which has various special advantages such as simplifying the device and reducing the number of passes, and is easy to handle and allows easy input of a large number of classification items.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an example of a tablet, Fig. 2 is an external view of main parts showing an embodiment of the device of the present invention, and Fig. 3 is a diagram showing storage and movement of the mask 13 in the same embodiment. , FIG. 4 is a diagram showing another means for storing and moving the mask 13 in the same embodiment, FIG. 5 is a block diagram showing a movement control circuit for the mask 13, and FIG. 6 is a diagram showing another means for storing and moving the mask 13 in the same embodiment. 1 is a block diagram showing the movement control circuit of the mask 13 of the embodiment shown in FIG. 6; FIG. 8 is a signal waveform diagram showing the operation of the block diagram shown in FIG. 7; It is. 10a, 10b...Guide rod, 11...
Tablet support, 12... Window (tablet), 13... Mask, 13a... Classification item, 13b, 13c... ID number, 14.・
...-ID number display window, 17a. 17b, 1B...Roller, 51a, 51b...
...Switch, 52a, 52b...Switch-on detection circuit, 53...Movement direction detection circuit,
54...Pulse motor drive circuit, 55...
...Pulse motor, 61゜62...Reference window, 6
4... Magnetic pen, 71, 72-... Magnetic loop, 73, 74... Indication detector, 78...
...Monostable multi-bi break, 77...Motor, 81...°...Pulse oscillator.

Claims (1)

[Claims] 1. A tablet having a tablet surface of a predetermined size and outputting coordinate position information of a position indicated by a pen on the tablet surface, and a plurality of classifications into areas larger than the tablet surface of the tablet. a flexible mask on which items are continuously written; means for moving this mask to display an arbitrary classification item writing area of the mask; and a means for moving the mask to face the displayed classification item writing area of the mask. means for selectively associating classification items on the mask with the tablet surface by moving the tablet; and detecting the position of the tablet with respect to the mask from a position code provided on the tablet and recorded in advance on the mask. a position detector; and means for obtaining information on classification items on the mask specified via the tufflet surface according to position information detected by the position detector and coordinate position information output from the tablet. A tablet device comprising: 2. The flexible mask is wound from both ends around two shafts provided at both ends of the tablet, and is moved by winding and unwinding.
The tablet device described in Section 1. 3. The tablet device according to claim 1, wherein the flexible mask is endless and can be moved endlessly with respect to the tablet.