JPS5930307B2 - Character input control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a character input control device in a kanji information processing system or the like, which allows a character input area to be specified from a scanning device such as a facsimile.

In kanji information processing systems, there are many requests to input characters into specific areas or positions on the screen.

For example, if we consider a screen consisting of a certain figure and an explanatory text for that figure, the explanatory text is usually input in an area that does not overlap with the figure. In addition, the title of the drawing, an explanatory text or an explanatory phrase within the drawing (eg, block name of a block diagram, etc.) is input at an arbitrary position on the screen. In order to meet these demands,
Conventional devices of this type are equipped with a coordinate input device such as a data tablet, and before inputting characters, a character area or character position is specified from the coordinate input device, and then characters are input sequentially. . For this reason, it is necessary to specify not only the character input operation but also the character area or character position, which has the disadvantage that the input operation becomes extremely complicated even though the number of input characters is small. In order to eliminate these drawbacks, the present invention enables the character input area to be input from a scanning device such as a facsimile machine to easily specify the character input position.The drawings will be described in detail below. .

FIG. 1 is a schematic block diagram of an embodiment of the present invention.
1 is a facsimile transmitter, 2 is a kanji input device, 3 is a character input control device, and 4 is a display device. Of these, the character input control device 3 forms the center of the present invention, and as shown in FIG. be done. ; FIG. 3 is a detailed diagram of the area detection circuit 31,
It consists of a horizontal line identification circuit 311, a horizontal line position detection circuit 312, a horizontal line encoding circuit 313, and a horizontal line code storage circuit 314. Also, Figure 4 is Table 7r! This is a detailed diagram of the BU control circuit 33, showing the display position detection circuit 331 and the display position Fhl leg circuit 33.
Consists of 2. Next, the operation will be explained with reference to FIGS. 1 to 4.

A document on which a character input area figure is drawn is set in the facsimile transmitter 1 to start scanning, and the figure information output from the facsimile transmitter 1 is first processed by the figure processing circuit 30 of the character input control device 3. do. Graphic processing circuit 30
is a circuit that converts a line drawing (which may be handwritten) given from the facsimile transmitter 1 into horizontal line segments and vertical line segments.
No. 3-128292, ``Chart Input Processing System,'' which has a configuration in which a hand-drawn line figure is thinned in real time to obtain a figure consisting of both horizontal and vertical lines may be used. Next, based on the graphic information processed by the graphic processing circuit 30, the area detection circuit 31 performs the operations described below to detect an area in which characters are to be placed. There are basically five areas in which characters should be placed, indicated by A to H shown in FIG. 5, and they can be described using only horizontal or vertical lines.

In other words, all areas are made up of horizontal lines and vertical lines, and the end points of the horizontal lines and the end points of the vertical lines at the corners of the area coincide. Therefore, a vertical line (horizontal line) code can be easily created by combining the end points of two horizontal line (vertical line) codes. Therefore, I will explain this using a horizontal line. First, from the graphic information processed by the graphic processing circuit 30, the horizontal line identification circuit 3 of the area detection circuit 31
11 extracts the horizontal line.

A horizontal line can be extracted as a group of black pixels that are continuous in the main scanning direction of the facsimile. Next, the horizontal line position detection circuit 312 operates to determine the starting point coordinates and ending point coordinates of the horizontal line extracted by the horizontal line identifying circuit 311. The three coordinates can be expressed as (Xl, Yi), where X1 is the address in the main scanning direction and Yi is the address in the sub-scanning direction. The horizontal line encoding circuit 313 extracts these coordinate values and sends them to the horizontal line code storage circuit 314 as a set including the starting point and ending point of one horizontal line. The horizontal line code storage circuit 314 sequentially stores codes sent as the facsimile scans. In this way, the area detection circuit 31 decomposes an area surrounded by a horizontal line segment and a vertical line segment into a string of coordinate values of the starting point and ending point of the horizontal line segment and stores them.

Next, the display control circuit 33 operates, and the character pattern generator 3
The character patterns from 2 are placed in the detected area and displayed on the display device 4. The operation of the display control circuit 33 and the method of arranging characters will be explained with reference to FIG.

In FIG. 6, reference numeral 5 indicates a display screen, and solid lines within this display screen indicate horizontal lines extracted by the area detection circuit 31. In FIG. Now, assume that the area detection circuit 31 stores horizontal line codes in the horizontal line code storage circuit 314 as shown in Table 1 below. On the other hand, characters are input as character string data from a kanji input device 2 such as a kanji tablet or keyboard and are stored in the memory of the kanji input device 2 as modal code information.

Alternatively, the characters may be input one by one from the kanji input device 2. At this time, the display position detection circuit 331 of the display control circuit 33 is connected to the horizontal line code storage circuit 313 as described above.
First, from the contents of the first horizontal line AB (7) Y coordinate (Y1
), the X coordinate (X1) of the starting point, and the X coordinate (X2) of the ending point are stored in registers RY, RX8, and RXE (not shown), respectively.

Next, when a character code to be displayed is extracted and a character pattern corresponding to the character code is obtained from the pattern generator 32, the display position of that character pattern is
Display position control circuit 3 from the contents of xs and RXE registers
32 calculates and controls the display device 4 to display it. That is, the first character is written and displayed starting from the address stored in the registers RY and Rxs, and from the second character onward, the addresses are updated according to the determined character spacing, and character patterns are written and displayed. At this time, if the X address to which the character pattern is to be written exceeds the address stored in the register RXE, or if the character code is a line feed, a line feed is automatically performed. To automatically start a new line, update the contents of register RY as follows: (contents of register RY) ← (contents of register RY) + (character size) + (line spacing size) , Rxs may be used as a new write start address.

It is assumed that the sizes of the tazoshi character spacing and the line spacing are stored in advance in the display position control circuit 332.

Also, when starting a new line, you must check the area. Confirmation of this area is performed as follows. That is, the horizontal line code is sequentially checked by the display position detection circuit 331, and the X coordinates of the starting point and ending point of the horizontal line are compared with the contents of the registers Rxs and RxE. At that time, only when the contents of the register Rxs and the X coordinate of the starting point or the ending point match, or when the contents of the register RXE and the X coordinate of the starting point or the ending point match, are the horizontal lines constituting the same area. In Figure 6, from Table 1, RXS=X, RXE=X2, so
It turns out that the horizontal line GH is not a horizontal line that constitutes the same area, and the third horizontal line CD is (X coordinate of the starting point) - (R
It can be seen that the horizontal lines form the same area. If horizontal lines that constitute the same area are found by starting lines in this way, Table 2
Based on this, the contents of registers Rxs and RxE are updated and the horizontal area width is changed as follows. (1) In the case of 1 in Table 2 (corresponding to the exit in Figure 5), set the X coordinate of the end point to register R.
Store it in XE and expand the area width.

(2) In the case of 2 in Table 2 (corresponding to Fig. 5C), the X coordinate of the starting point is stored in the register Rxs and the area width is expanded.

(3) In the case of 3 in Table 2 (corresponding to 2 in FIG. 5), store the X coordinate of the starting point in register RXE and narrow the area width.

(4) In the case of 4 in Table 2 (corresponding to E in FIG. 5), the X coordinate of the end point is stored in the register Rxs and the area width is narrowed.

In the above four cases, the area width is changed and the character pattern continues to be displayed, but in the following cases, the area is closed and the character pattern is not displayed.

That is, (5) In the case of 5 in Table 2 (corresponding to FIG. 5A), the contents of registers Rxs and RxE are cleared.

In this way, when character display in one area is completed, the next area is detected and the same process is performed. Further, in order to facilitate the detection of horizontal lines in the area by the display position detection circuit 331, horizontal line codes that are no longer needed are sequentially erased. Although we did not discuss in detail the method of inputting characters in the above explanation, it is also possible to input the characters by converting them into encoded information using Kanji Teletype, etc., or to input them one character at a time as they are displayed. Of course, it is also possible to do so.

As explained above, according to the present invention, the character input area can be input from an input device such as a facsimile, and the character input position can be automatically detected. This has the advantage that input operations can be performed easily. In addition, by treating character strings and their layout control information separately in this way, character strings can be constructed without being tied to the layout, making it easier to construct character strings and reducing the amount of code. I can do it. Further, according to the present invention, there is an advantage that one text can be commonly used on each of five types of display screens by simply changing its layout control information.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of one embodiment of the present invention, and Fig. 2 is a block diagram of an embodiment of the present invention.
Figure 3 is a block diagram of the character input control device in Figure 2, Figure 3 is a block diagram of the area detection circuit in Figure 2, Figure 4 is a configuration diagram of the display control circuit in Figure 2, and Figure 5 is an example of a region pattern. The figure shown in FIG. 6 is an explanatory diagram of the operation of the display control circuit and the character arrangement method. 1...Fax transmitter, 2...Kanji input device, 3...Character input device, 4...
...Display device, 5...Display screen, 30...
...Graphic processing circuit, 31... Area detection circuit, 32... Character pattern generator, 33...
・・Display signal [circuit, 311 ・・horizontal line identification circuit, 312 ・・・horizontal line position detection circuit, 313 ・・・
...Horizontal line encoding circuit, 314...Horizontal line code storage circuit, 331...Display position detection circuit,
332...Display position control circuit.

Claims (1)

[Claims] 1. A character input means for inputting a character code, a figure reading means for reading a figure representing a character insertion area on the screen in an optical scanning format, and a figure reading means for converting the figure into a horizontal line segment from the image signal obtained by the figure reading means. a figure converting means for converting into a figure consisting of vertical line segments; an area detecting means for detecting an area surrounded by a horizontal line segment and a vertical line segment; and a character for converting the input character code into a character pattern. A character input control device comprising: a generating means; and a display control means for arranging and displaying character patterns generated by the character generating means in the area detected by the area detecting means.