JPS6112572B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a character input device that allows character input to be performed easily.

Character input devices are used to write information consisting of items, numbers, and simple sentences onto recording media for computer input, but conventional character input devices can only display about 5,000 characters as an input panel. Using a large full keyboard or pen-touch type input panel, when writing, the operator searches for the desired character one by one from a group of characters and presses the pen-touch button to convert the character into a kanji code. was written on a kanji data medium. Also, when this written information is needed, the kanji data medium is set in the central processing unit (CPU),
Next, reading is performed, and a desired portion of the Kanji code string is input into the central processing unit, and processing such as printing on an output printer is performed. However, the character input device described above has a large capacity because it can accommodate a large number of characters, and the operation is complicated because a desired one must be selected from a large number of characters. Therefore, the writing speed is slow and there is a possibility of erroneous operation. It was very hot.

By the way, when we analyze the content of users' work, we find that it is divided into various tasks such as banking operations and insurance operations.For example, in banking operations, words (terms) such as deposits and balances are frequently used.
Other words are not used that much, and some words are not used at all, so even if the same kanji is used, some are used and some are not, depending on the job. And there are not that many types of words that are often used in each business. Therefore, the characters that need to be displayed on the input panel are actually the type of characters used in each business, and by doing so, the input panel can be made smaller and easier to operate. Therefore, the number of erroneous operations can be reduced and the writing speed can be increased.

Therefore, in the present invention, a block is created that collects only the character types used in each business, and the character patterns and codes of each block are written in a character code recording medium for each block. It is now possible to read character blocks and display each character pattern on the input panel. In this way, the number of characters displayed on the input panel is small and only necessary characters, so character selection can be made extremely easily and quickly. In addition, since a floppy disk is used as the character code recording medium and a plasma display panel (PDP) is used as the input panel, the recording medium is easy to handle and there is no risk of damage, and the PDP has a memory function. Unlike CRTs, there is no need for refresh, and the driver circuit etc. can be simplified.

The character input device of the present invention includes a recording medium that stores character groups consisting of character patterns and their character codes classified by industry, a key for selecting one of the character groups for each industry, and an industry type selected by the key. a display section that displays character patterns of different character groups; a memory that stores character codes; and a display section that is provided with a display section that indicates the coordinate position of a desired character by placing a pen on the desired character displayed. It is equipped with a position detection panel that outputs a signal and an encoding circuit, reads out the industry-specific character group selected by the selection key from the recording medium, displays the character pattern on the display section, and stores the character code in the memory. , when an address signal of a character selected by the pen is input from the encoding circuit, the corresponding character code is read from the memory, the character code recording medium is a floppy disk, and the display section is a plasma display. This is characterized in that it is a panel, which will be described in detail below with reference to Examples.

FIG. 1 shows the configuration of a character input device according to the present invention. Reference numeral 1 denotes a character code recording medium in which patterns of required characters (kanji, numbers, etc.) for each business and their codes are written in each block in correspondence with the addresses of the input panel 4. The output of this recording medium 1 is input to a control circuit 2 having a memory 21 inside, and the control circuit includes a selection key 5,
A driver circuit 3, an encode circuit 6, and a kanji code register 7 are connected. This selection key 5
is for selecting an industry block of the character code group written on the recording medium 1, and is made up of keys similar to, for example, 16 function keys. The output of the driver circuit is input to a plasma display panel 4a, and a position detection panel 4b which is transparent and has conductors arranged in a matrix in the vertical and horizontal directions is abutted and fixed to the PDP 4a. The input end of the encoding circuit is connected to the position detection panel 4b, and outputs the address signal of the character specified with the pen 9 to the control circuit 2. The plasma panel 4a and the position detection panel 4b shown surrounded by the dashed line l are overlapped as shown in FIG.
An input panel 4 is configured to accommodate characters before and after the character. The kanji code register 7 is also connected to a kanji data medium 8 such as a magnetic tape.

In order to display kanji characters as dots on the input panel 4, it is necessary to use more dots than in the case of numerical display, and in this example, a dot pattern of 16×16 dots/character is used. It is necessary to write a bit pattern corresponding to such a dot pattern and its character code on the recording medium 1, an example of which is shown in FIGS. 3a to 3d. In this example of text, ``Wealth'' is shown in a 16 x 16 dot pattern as shown in Figure 3a, which is divided into two in the center and each column has two 8 dots each.
These 8 dots are considered as 1 byte, and the numbers 1, 2, 3,
The 1st byte, 2nd byte, 3rd byte, etc. are indicated with ..., and these bytes are designated as the 3rd byte.
Write to the track of the floppy disk 1 as shown in FIG. b. Since each byte is arranged in the track width direction as shown, the 16.times.16 bits in FIG. 3a, that is, two rows of 16 bytes, becomes one row of 32 bytes, which is twice the length. As is clear from the drawing, the first and second bytes are blank parts, so they are all the same bits. In this example, they are "0" bits, and the seventh and eighth bytes are
Since a byte etc. includes a part of a character, the bit of that part becomes 1. In addition to this 32-byte kanji pattern, there are 2 character codes corresponding to the kanji.
Bytes are added, so one character is written to the floppy disk track using 34 bytes. FIG. 3c shows the writing state, C ₁ ,
C ₂ , C ₃ , . . . are character codes, and P ₁ , P ₂ , . . . are kanji pattern recording units. FIG. 3d shows the track structure of a floppy disk, and a hatched portion A indicates one sector. This one sector
It consists of 128 bytes, and there are about 20 in one track, and there are 77 tracks in the effective disk width W _1.
There are books. Note that since one character is written in 34 bytes as described above, three characters are written in one sector in the form shown in c of the same figure. Also input panel 4
As mentioned above, since about 250 characters are displayed, one business block consists of 83 sectors.

Next, to explain the operation of the present invention, when the selection key 5 is pressed, the control circuit 2, for example,
Depending on which key is pressed, the character pattern and character code of the industry block corresponding to the key are read from the recording medium 1. The control circuit 2 inputs the character pattern of the read character pattern and character code to the driver circuit 3,
The character code is written into the built-in memory 21. Note that a microcomputer or the like can be used for this control circuit 2. The driver circuit 3 inputs this character pattern to the PDP 4a and causes the PDP to display one block of characters. When the character display on the plasma panel 4a is completed in this manner, the operator searches for the desired character from among the displayed characters and places the detection pen 9 on the position detection panel 4b. The panel 4b includes conductors arranged in a matrix as described above, each character of PDP4a is displayed at each intersection of these conductors, and the conductors are connected to a power supply via a resistor and a detection pen 9. is grounded, so when the pen is applied to the desired character and thus the intersection, the X and Y conductors belonging to the intersection are grounded,
Causes potential changes. This potential change is input to the encode circuit 6. In response to this potential change, the encode circuit 6 generates an address signal for the character designated by the pen 9, and inputs this to the control circuit 2. That is, when Higashi, Kyoto, and Miyako are displayed on the plasma panel 4a as shown in _FIG . The potential change of the conductor corresponding to Y ₁ ) is input to the encode circuit 6 , and the encode circuit generates an address signal C ₁ corresponding to the coordinate S and inputs it to the control circuit 2 . The same applies when other characters are specified. If you need characters of another type (industry), press the selection key 5 to change the reading block of the recording medium 1 to another block, search for the desired character from the changed display character group, and press the pentouch. Just do it. The address signal inputted to the control circuit 2 in this manner reads out the memory 21 of the control circuit 2. In this memory, the character code group of the industry block selected with the selection key 5 is written in correspondence with the address on the panel, so if this is read out using the address signal from the encoder circuit 6, the character code specified by the pen will be written. You can output the code. This character code is input from the control circuit 2 to the kanji code register 7, and when the character code of 64 characters (128 bytes) is written to the register, the character code group is transferred to the kanji data medium 8, and the character code group is transferred to the kanji data medium 8. written to the medium. As described above, this kanji data medium 8 serves as a means for inputting characters into a computer, and is used for display, transmission, printing, etc. In this way, in this character input device, the selection key 5 selects the industry block of the recording medium 1, and the encoding circuit 6
The character code of the required character is read out by the address signal from the kanji character code register 7, inputted into the kanji code register 7, and written into the kanji data medium 8.

As described in detail above, according to the present invention, the input panel 4 is made smaller, the character types are limited to only the necessary characters arranged in the desired order for each job, and character input operations can be performed in which these characters can be easily rewritten into a different type of character group. becomes easier and faster. Also character code recording medium 1
By using a floppy disk, it is flexible and difficult to break, making it easier to handle.
Since it is thin, the storage space can be small. Furthermore, if a PDP is used for the display section, that is, the input panel 4, it has a memory function, so writing only needs to be done once.
Unlike a CRT, there is no need to prepare a memory and perform refresh to create a still image, so the driver circuit 3 etc. can be simplified, and/or the character code recording medium 1 can not be made into an expensive item such as a magnetic disk. An inexpensive slow read storage device such as a floppy disk device can be used. Furthermore, this device reversely inputs the character code written in the code register 7 to the control circuit 2, and outputs the character code written to the recording medium 1.
Of the character patterns read from the character code, only the character pattern corresponding to the character code can be displayed on the PDP 4a, and in this way, the present device can also be used as an input monitor.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the structure of a character input device according to the present invention, FIG. 2 is a schematic perspective view showing the structure of an input panel, and FIGS. 3 a to 3 d are explanatory diagrams illustrating writing on a floppy disk. FIG. 4 is an explanatory diagram illustrating the operation of the present invention. In the drawing, 1 is a character code recording medium, 2 is a control circuit, 4a is a display section, 4b is a position detection panel, 5 is a selection key, 6 is an encoding circuit, and 9 is a detection pen.

Claims (1)

[Claims] 1. A recording medium that stores character groups consisting of character patterns and their character codes classified by industry;
a key for selecting one of the industry-specific character groups; a display section for displaying the character pattern of the industry-specific character group selected by the key; a memory for storing character codes; a position detection panel and an encoding circuit that output a signal indicating the coordinate position of the desired character by applying a pen to the desired character, and the industry-specific character group selected by the selection key is recorded on a recording medium. and displaying the character pattern on the display unit, and storing the character code in a memory, and when an address signal of a character selected by the pen is input from the encoding circuit, the corresponding character code is read from the memory. A character input device characterized by: 2. The character input device according to claim 1, wherein the character code recording medium is a floppy disk, and the display section is a plasma display panel.