JPS61226886A - Pattern input device - Google Patents

Abstract

PURPOSE:To input a control information such as a control code and changeover a mode without especially providing a menu area by deciding a signal obtained by comparing a pattern drawn on a coordinate input device with an inputted pattern, and outputting a decided result. CONSTITUTION:A coordinate constituting a character (pattern) drawn on a coordinate input device 101 is outputted in time series to a signal line 111, and a result recognized in a character recognition device 102 is added to a deciding section 106. The coordinate of one picture drawing line is stored in one picture memory section 103 and the previously stored coordinate of the picture drawing line is applied to one picture memory section 104. The contents of the first and the second pictures stored in both the memory sections 103, 104 are compared one point by one point by a comparison section 105 and the compared result is added to the section 106. Based on the comparing result of the comparison section 105, the character is decided by the section 106 and without especially providing a menu area, a control information such as a changeover of a mode or a control code is inputted.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention provides information other than the pattern, such as input mode settings and control codes, when inputting patterns such as characters and figures using a coordinate input device. The present invention relates to a pattern input device equipped with control information input means.

[Technical background of the invention and its problems]

In recent years, with the improvement of recognition technology and the development of microcomputers, systems have been developed that input characters and figures by hand from a coordinate input device. However, both the coordinate input device and the conventional key If it is necessary, it will actually become difficult to use.

Conventionally, when using a coordinate input device, it was necessary to switch between various modes.
For example, the following method was used:

FIG. 5 is an example of a board when handwritten characters are input using a coordinate input device. The board is divided into a character input area 501 and a menu area 502 for mode switching.

Suppose now that a character string 503 is written in the character input area 501, and after writing the last character "enclosure" in the 5030th line of the character string, the user realizes that the fourth character 504 is incorrect. The user first instructs a correction 506 in the menu area 502, and then overwrites the incorrect character 504 with the correct character.

However, using the menu area 502 in this way reduces the area of the character input area 501 and requires large hand movements when selecting a mode, making it difficult to use. Particularly in the case of a small input device, the board surface is small, so how to make the menu area 502 small becomes a problem.

[Purpose of the invention]

It is an object of the present invention to provide a pattern input device equipped with a control information input method that allows input of control information such as mode switching and control codes without providing a menu area.

[Summary of the invention]

This invention enables input of characters, figures, etc. from a normal coordinate input device.
- 9 turn input device equipped with a control information input means that uses as control information an action that cannot be considered with conventional devices, i.e., the action of writing the same pattern twice or more at the same position when inputting the mother turn. It is related to the device.

〔Effect of the invention〕

As described above, the present invention includes a comparison means for comparing a pattern drawn on a coordinate input device with an already input/mother turn, and a comparison means that judges a signal from this comparison means and outputs the judgment result. Since the control information is provided with a judgment means that allows the user to input the control information at the same position with the same motion as when writing patterns such as letters and figures, there is no confusion with other necessary inputs or turns. There is no. Particularly, even when the coordinate input surface is small and only - characters can be entered at a time, line breaks and even digits can be easily entered.

Another advantage is that the input speed can be increased slightly compared to conventional menu selection, in which a desired item is searched for and selected.

[Embodiments of the invention]

An embodiment of the invention will be described with reference to the drawings.

FIG. 2 is an example of a pattern for control information when the present invention is used. FIG. 2(a) shows a line feed instruction after inputting one line, FIG. 2(b) shows a deletion instruction, and FIG. 2(C) shows an insertion instruction, each written twice at the same position. By writing twice in the same position, each write
It can be distinguished from ``1'', ``-'', and ``v''.

FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, 101 is a coordinate input device, 102 is a character recognition section, 103 and 104 are one-stroke storage sections, 105 is a comparison section,
106 is a determination unit, and 111, 112, 113, and 114 are signal lines.

Now, when a character is written on the coordinate input device 101, the coordinates forming the character are transmitted to the signal line 111 as a time series. This time series of coordinates is input to the character recognition unit 102,
The recognition result is sent to the signal line 112. On the other hand, the time series of coordinates is also input to the one-stroke storage unit 103, and the coordinate input device 101
The time series of the coordinates of one actual drawing line is memorized from when the pen is first pressed until the next time the pen is released. At the same time, the 1
The coordinate time series of one stroke at the previous point in time is sent to another one-stroke storage section 104 and stored therein. Tsumashi, - side storage section 103
．． 104 always stores the coordinate time series of the last two strokes.

Suppose now that the character recognition unit 102 sends "=" to the signal line 112 as a recognition result. At this time, the negative side storage unit 10
The second stroke of the character "=" written on 3 is the - side memory section 10
4 stores the first stroke of the written character "=".

The comparison unit 105 compares the contents of the one-stroke storage units 103 and 104 point by point, and if the coordinate values match for most of the points, it determines that two lines have been written overlapping each other and transfers the signal to the signal line 1.
Send on 13th. Also, if it is determined that the two lines do not overlap, no signal is sent. The determination unit 106 receives the result from the character recognition unit 102 and the signal from the comparison unit 105. For example, if the recognition result is “=” and the comparison unit 105
When there is no signal from the signal line 1, the final result is "="
Send on 14th. Although the recognition result was "=", when there is a signal from the comparison unit 105, it is determined to be "deletion" and the erasure code P is sent to the signal line 114.

FIG. 3 is a more specific example of the application of the invention described above, and is a code assignment table for a document image input device from a small area coordinate input device.

“Recognition” 301 is the recognition result from the character recognition unit 102, “
"Comparison" 302 is an output signal from the comparison unit 105, "different" means when there is no signal, "same" means when there is a signal.・"Judgment" 303
is the output of the signal line 114 which is the determination result from the determination unit 106. The ordinary characters not shown in FIG. 3 are not specifically shown in FIG. 3 because they cannot be confused with control signals.

FIG. 4 is a diagram showing a specific example for explaining the application example, in which a small area coordinate input device 401 is connected to a display device 4.
02, and when characters are written one by one with a finger on the coordinate input device 401, the recognition results are displayed on the display device 4.
Displayed on 02. Now, when you write "This invention is" on the first line on the display device 402 and want to start a line break, just write "tsu" twice at the same position on the coordinate input device 401, and the system will print a "line break". The next character is input from the beginning of the next line. Also, draw a free shape 403.

If you want to, enter two “/” in the same position on the coordinate input device 401.
Once written, the mode is switched to the figure drawing mode, and the locus on the coordinate input device 401 is displayed as is on the display device 402 until the next time “/” is written twice at the same position. Of course"/
” If you want to write a pattern of “/”, insert two “/” in different positions.
Since it has been written twice, the judgment will be "7" and the drawing mode will not be entered.

In the embodiment described above, control information is detected by the overlap of two temporally consecutive drawing lines, but the number is not limited to two, and for example, three drawing lines may overlap.

Alternatively, a pattern consisting of a plurality of lines may be overlapped multiple times like an "X".

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an example of control information in the embodiment of FIG. 1,
FIG. 3 is a diagram showing an example of code assignment in the embodiment of FIG. 1;
FIG. 4 is an explanatory diagram illustrating a specific example of implementing the present invention, and FIG. 5 is a front view showing a control information input panel according to a conventional example. In the figure, 101, 401 is a coordinate input device, 102 is a character recognition unit, 103, 104 is a one-stroke storage unit, 105 is a comparison unit, 106 is a determination unit, 111° 112, 113, 11
4 is a signal line, 402 is a display device, and 403 is a graphic. (a) (b) (C) Figure 4 Figure 5

Claims (1)

[Claims] In a pattern input device equipped with a coordinate input device, a comparison means for comparing a pattern drawn on the coordinate input device with a pattern that has already been input, and a determination result obtained by determining a signal from the comparison means. A pattern input device comprising: determination means for outputting a pattern input device.