JPS6051983A - Tablet inputting device - Google Patents

Abstract

PURPOSE:To enable free change of the size of a key segment by dividing coordinate component detected and inputted by an information inputting device by a specified value, and making it into integer and converting to a new coordinate component. CONSTITUTION:When an inputting pen 10 is touched to a tablet 2 provided with a key segment 6A in matrixlike form, a pen switch 10B is closed and scanning pulse is impressed to (x) electrode 3 and (y) electrode 4. When the pen 10 detects specified scanning pulse, an address detecting section 12 sends the coordinate information to an operating section 14. In the operating section 14, coordinate component sent from the detecting section 12 is divided by a divisor inputted beforehand from a sheet information detecting section 13 according to a program stored in an ROM16, the quotient is made into integer, and outputted as positional information of the segment 6A on an information sheet 6.

Description

[Detailed description of the invention] The present invention relates to a tablet input device.

The tablet input device is an information input device that has been commonly used as an input device for character/graphic data input and item data because its operation is relatively simple and easy. This tablet input device may be a capacitive coupling type, an electromagnetic coupling type, or a pressure sensitive type. Information input means such as a signal input pen or the like is provided.

The tablet has a structure that differs depending on the method, but for example, in the case of a capacitive coupling method, an X electrode group and an A trap is arranged such that a predetermined scanning pulse is sequentially applied to each electrode group. In this case, the above X.

The y4 electrode group is in a stacked state with an insulating layer sandwiched therebetween, and the insulating layer is formed of a printed circuit board.

Therefore, since the size of the unit input area on the tablet is fixed, there has conventionally been the inconvenience of using a tablet input device having different unit input areas depending on the application.

On the other hand, to improve this inconvenience, for example, the same definition code can be assigned to multiple adjacent unit input areas, thereby expanding the input area and using the expanded area for inputting items. Methods such as doing this have been devised.

However, with this method, all the positional information detected by the signal input sensor described above must be checked against the conversion table. Even when inputting the data into the computer main body, there is a drawback that a memory for an address conversion table is not required, and the memory capacity is also required to be equal to the number of unit input areas.

It is an object of the present invention to provide a general-purpose tablet input device that can improve the disadvantages of the prior art and allow selective use of sheets with enlarged input areas of a predetermined size depending on the application. It is in.

Accordingly, the present invention provides a tablet input device including a tablet provided with key segments in a matrix, and an information input means for inputting coordinate information by contacting the tablet. A conversion circuit is provided which divides the obtained coordinate component by a predetermined value, converts it into an integer, and converts it into a new coordinate component, thereby achieving the above object.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In FIG. 1, a 1-digit tablet frame body is shown, and 2 is a tablet board surface. On this tablet board surface 2, an X electrode wire 5 and a y electrode 1114 are arranged so as to intersect with each other through an insulating layer portion thereof. As a result, unit input areas 5 are divided and set in a matrix on each of the intersection positions. Note that this unit input area 5 is invisible and is indicated by a two-dot chain line in the figure. An information sheet 6 such as a replaceable character sheet is mounted on the tablet surface 2. As shown in FIG. 3, the size of the key segment 6A specified on this information sheet 6 is 504 unit input areas in the EX direction and 2 units in the Y direction. Therefore, in this embodiment, 50 unit input areas 5 are divided in the row direction and 40 unit input areas 5 in the two column direction on the tablet surface 2, whereas 15 unit input areas 5 are divided in the row direction on the information sheet 6. Key segments 6A divided into 10 pieces in the direction of two columns are formed and used as traps.

Further, in FIG. 1, 7.8 indicates an identification mechanism of the information sheet 6. In this embodiment, circular magnetic stickers 9 are affixed to the identification mechanisms 7, 8, and up to four magnetic stickers 9 can be affixed to each of the identification mechanisms 7, 8. The size of the key segment 6A divided on the information sheet 6, that is, the number m1 of unit input areas in the X direction and the number n of unit input areas in the Y direction, is determined by the 4-bit identification mechanism 7 and 8. It is expressed in binary numbers, and in the example of FIG. 1, one of the identification mechanisms 7
The identification mechanism 8 is expressed as "0100" (m-4), and the other identification mechanism 8 is expressed as "0010J (n-2)."

An input bezel 10 serving as information input means is attached to the tablet frame 1. This input ben 10 comes into contact with the sheet 6 on the tablet board surface 2, and the
The scanning pulse applied to the electrode 3 and the X electrode 4 is detected by electrostatic coupling, and a switch section 10B is provided at the pen tip 10A. Specifically, when the predetermined segment 6A is touched with the input ben 10, its tip 10A is pressed somewhat inward, and this suppressing operation operates the switch section 10B, which causes the x
, y, a scanning pulse voltage is sequentially applied to each electrode group.

Further, in FIG. 2, 12 indicates an address detection section, and 1
5 indicates a sheet information detection section. Of these, the address detection unit 12 detects a unit input area 5 related to the Bent touch at that time from the scanning pulse detected by the tip 10A of the input pen.
It has the function of specifying the location of (For details, see, for example, Japanese Patent Laid-Open No. 58-86671). Further, the sheet information detection unit 1S includes each identification mechanism 7, 8 of the information sheet 6 described above.
Sheet information m, n (in this example, mm 4 , nw = 2) indicating the size of the six key segments of the sheet from
). Then, each output signal of the address detection section 12 and sheet information detection section 13 is sent to the calculation section 14.

This calculation unit 14 divides each x and y coordinate component, which is the positional information of the unit input area 5A sent from the address detection unit 12, by the sheet information m, n that is also sent from the sheet information detection unit 15. As a result, the positional information X and Y of the key segment 6A on the information sheet 6 is output. That is, in this embodiment, the position information x, y of the unit input area 5 and the key segment 6
Figure 5 (1), (21
For example, if the X coordinate of the unit input area 5A at the bent-touched position is 6, divide this by m = 4 to obtain a quotient of 1.5, but further convert this into an integer. Obtain the X coordinate "1" on the information sheet 6. If the X coordinate at this time is 3, this is divided by nm2 to obtain a quotient of 1, 5, which is further converted into an integer to obtain the Y coordinate "1" on the information sheet 6.

Reference numeral 15 denotes a RAM section used by the arithmetic section 14 to save data as needed during operation. Further, reference numeral 16 denotes R in which a program for arithmetic processing to be performed in the arithmetic unit 14 is stored.
This is the OM department.

Next, 1. To explain the overall operation of this embodiment, first, when Obele uses the input bezel 10 to touch any middle segment 6A on the information sheet 6, the ben switch IOB closes as described above. A scanning pulse is applied to the X electrode 3 and the X electrode 4.

When the input sensor 10 detects a specific scanning pulse, as described above, the address detection section 12Fi determines which unit input area 5A the detected pulse corresponds to based on its timing.
It is determined whether it is related to K, it is specified, and the arithmetic unit 14
send to The calculation unit 14 divides the coordinate component sent from the address detection unit 12 by the divisor inputted in advance from the sheet information detection unit 15 according to the program stored in the ROM unit 16, and converts the quotient into an integer. As described above, the key segments on the information sheet 6 are output as position information of the six people.

Therefore, this embodiment has the advantage that it is possible to freely change the size of the key segment without using a memory for each information sheet.

Here, in this embodiment, a capacitive coupling type tablet input device is particularly illustrated and explained, but the present invention is not necessarily limited to this, and can be applied to devices such as an electromagnetic coupling type and a pressure sensitive type. It is.

Further, in the embodiment, the size of the segment 6A on the information sheet 6 is r4X2J times the unit input area 5A, but the size is not particularly limited. Furthermore, regarding the identification of the information sheet 6 and the necessary divisors m and n, in this embodiment, the identification mechanism 7.8 and the sheet information detection section 15 are used.
However, the present invention is not necessarily limited to this. For example, a numeric keypad or a function key may be provided to specify the divisor m.
, n may be input by the operator each time.

As described above, the present invention includes a conversion circuit that divides the coordinate component detected and inputted by the information input means by a predetermined value, converts it into an integer, and converts it into a new coordinate component.
It is possible to provide a tablet input device in which the size of the key segment can be freely changed without using a memory for each information sheet, and also completely eliminates the need for a memory for each information sheet, which was required in the prior art.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of the present invention, Figure 1 is a partially cutaway plan view showing the tablet portion, Figure 2 is a block diagram, and Figure 6 (11, (2) is This is a chart showing the correspondence between addresses. 6...Sheet, 6A...Key segment, 10...
- Input pen, 14... calculation section. Patent applicant Pentel Co., Ltd.

Claims (1)

[Claims] (1) In a tablet input device comprising a tablet provided with key segments in a matrix, and an information input means that is in contact with the tablet Km and inputs coordinate information, coordinate components detected by the information input means What is claimed is: 1. A tablet input device comprising a conversion circuit that divides the result by a predetermined value, converts the result into an integer, and converts the result into a new coordinate component.