JPH06324796A - Handwritten input device - Google Patents

Abstract

PURPOSE:To easily input required data at a high speed by inputting the data instructed by a command at the written position of the command on the screen of a display means when the input of the command reserved beforehand is recognized. CONSTITUTION:A command recognition part 23 receives an instruction from a CPU 21, recognizes in character handwritten input data, collates an obtained character string with the character string of an editing command stored in a reserved command memory 24, recognizes the handwritten input of the reserved command and replies to the CPU 21. When the reserved command is inputted, the CPU 21 sets a data input position on the screen from the handwritten input coordinate data of the reserved command, also reads the data instructed by the reserved command recognized by the command recognition part 24 from a clock circuit 30 or a memory 25, etc., transfers the data to an image processing part 31 and requests the image processing part 31 to perform an editing processing for inputting the data from the position where the reserved command is written.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwriting input device for inputting data by handwriting, and more particularly to a handwriting input device for inputting desired data at a desired display position by inputting a command reserved in advance by handwriting input. Regarding

[0002]

2. Description of the Related Art Recently, the importance of user interfaces in computers has been recognized. Along with this, GUI (Graphical User Interfac
e; Graphical user interface) is becoming the mainstream of user interface.

In this interface, by selecting an icon (pictorial symbol) by operating a mouse or a keyboard, it is possible to perform all operations other than character input such as command selection, file operation, and program start-up from a menu. It has become.

However, since the conventional GUI is based on the mouse operation, there is a problem in operability. That is, the mouse for selecting an icon by operating the mouse
The movement of the cursor was not so smooth, and it took a while to get used to. Also, a space for operating the mouse was required. Recently, pen input has been attracting attention as a means for overcoming the drawbacks of the mouse as a pointing device.

With pen input, characters and figures can be directly input to the display screen in the same manner as when a user writes in a notebook or notebook that he or she is familiar with. Also, it is very easy to select the icon by pointing it directly with the pen.
It is fast and ideal as a pointing device for GUI.

[0006]

Conventionally, the data input by the pen operation is to directly input the data to be input by handwriting. However, such an input method has a drawback that the data input speed of the pen input is lower than that of the key input.

It is an object of the present invention to provide a handwriting input device whose basic operation is pen input so that necessary data can be input easily and at high speed by handwriting a command reserved in advance by the pen. To do.

[0008]

The present invention comprises the following means. The display means is a device for displaying the image data in the bitmap format, and is composed of, for example, a liquid crystal display device.

The coordinate input means is arranged over the display means and detects the coordinates of the operation position of the pen on the display screen of the display means. This means is composed of, for example, a pressure sensitive type, a capacitance type, an electromagnetic induction type tablet (digitizer).

The command recognition means recognizes the input of a reserved command (reservation command) based on the coordinate data of the pen operation position when the user inputs by handwriting with the pen detected by the coordinate input means.

When the command recognition means recognizes the input of the reserved command, the editing means causes the data designated by the command to be input to the entry position of the command on the screen of the display means.

When the pre-reserved command is a time command, the editing means reads time data from the clock circuit and inputs it to the entry position of the command. Further, for example, when the previously reserved command is a memo command, predetermined memo data is read out from the memory and is input to the entry position of the command.
Further, as described in claim 4, for example, the size of the data designated by the command input to the entry position of the command is determined according to the size of the command reserved in advance.

The command recognizing means and the editing means are composed of, for example, a CPU (central processing unit), a memory, a subsystem dedicated to image data processing, and the like.

[0014]

According to the present invention, when the user hand-writes a desired command among the commands (reserved commands) reserved in advance by the pen operation on the screen displayed on the display means, the screen at this entry position is displayed. The coordinate input means detects the coordinates of.

The command recognizing means receives the detected coordinate data of the handwritten input from the coordinate input means, and recognizes that the reservation command is handwritten based on the coordinate data.

Then, the editing means inputs the data designated by the command recognized by the command recognizing means from the entry position of the command on the display screen of the display means.

Therefore, the desired data can be input easily and at high speed only by entering the reservation command instructing the desired data at the desired data input position on the screen.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of an embodiment of the present invention.

The apparatus shown in the figure has a handwriting input by the pen 11 as a basic operation and has a handwritten character recognition function. The entire device has a pad type outer shape, and a pen storage groove 12 for storing a pen 11 is provided above the device. Further, an input / display device 13 for pen input is incorporated in almost the entire upper surface except the pen housing groove 12.

The input / display device 13 is composed of a display unit 13a composed of a bit map display such as a liquid crystal display and a coordinate input unit 13b composed of a tablet arranged so as to overlap with the display unit 13a.

Next, FIG. 2 shows a system configuration of an embodiment having the above appearance. In the figure, a CPU 21 is a central processing unit such as a microprocessor, and executes a program stored in a program memory 22 to control each component in the system.

The coordinate input section 13b is composed of, for example, a pressure sensitive tablet or an electromagnetic induction type tablet, and when a pen input is detected, the coordinate position of the pen input (coordinate data of the handwriting input writing locus) is passed through an interface (not shown). CP
Output to U21. The CPU 21 generates handwritten image data by pen input from this coordinate data and writes it in the image memory I26.

The command recognition unit 23 receives the instruction from the CPU 21 and recognizes the handwritten input data as characters. Then, the character string obtained by this character recognition is collated with the character string of the edit command stored in the reserved command memory 24, and the reserved command (command for instructing input of specific data set / registered in advance). Recognizes handwriting input. Then, the recognition result is returned to the CPU 21.

The reservation command memory 24 stores, as text data and symbol data (character and symbol code strings), all editing commands that can be used in this apparatus, including reserved commands in the format shown in FIG. Is stored.

When the reservation command is input in response to the recognition result by the command recognition unit 24, the CPU 21 displays the data instructed by the reservation command on the screen from the handwritten input coordinate data of the reservation command. The data input position is set, and the data designated by the reservation command recognized by the command recognition unit 24 is read from the clock circuit 30 or the memo memory 25 and transferred to the image processing unit 31, and this data is stored in the reservation command. The image processing unit 31 is requested to perform the editing process of inputting from the position where is written.

The memo memory 25 is an area for storing memo data designated by a "MEMO:" command, which is one of reservation commands described later. The memo data is data input / registered from the screen by the user using a predetermined command.

The clock circuit 30 divides the generated clock signal of a constant cycle by a predetermined cycle to generate a time signal which serves as a reference, and further counts this time signal,
Current time data consisting of (date, time) is generated. Then, the present time data is output to the CPU 21 in response to a request from the CPU 21.

The image memory I26 is a memory for storing the latest handwritten input image data pen-inputted on the display screen of the input / display device 13 in a bitmap format. Also, the image memory II 27 is already input
It is a memory that stores image data of a screen in a bitmap format.

The display memory 28 is a frame memory for storing the image data of the screen displayed on the display unit 13a in the bitmap format. The display control unit 29 reads the image data from the display memory 28, converts the image data into a serial video signal, outputs the serial video signal to the display unit 13a, and supplies a horizontal / vertical synchronization signal to the display unit 13a. The image of the image data stored in the display memory 28 is displayed on 13a.

The image processing section 31 receives the instruction from the CPU 21 and creates the image data of the text data transferred from the CPU 21. That is, text data such as date / time data and memo data designated by the reservation command recognized by the command recognition unit 23 is converted into image data, and the image data is enlarged / reduced according to the size of the inputted reservation command. Processing such as the above is performed while using the calculation unit 33. Then, new image data obtained by this processing is sequentially written in the image development memory 32. Then, when this editing process is completed, the image data (result of execution of the reservation command) stored in the image development memory 32 is transferred to the area corresponding to the entry position of the reservation command in the image memory I26.

The image expansion memory 32 is a bit map type memory for temporarily storing the image data of the data input by the input of the reservation command created by the image processing unit 31 as described above.

Under the control of the image processing unit 31, the arithmetic unit 33 performs processing such as enlargement and reduction on the image data of the data input by the input of the reservation command.

The page file 34 stores a plurality of pages of one page (corresponding to one screen of the display section 13) created by pen input. The CPU 21 writes this in the page file 34 each time a one-page document is created on the input / display device 13.

The work memory 36 is a memory having a work area used by the CPU 21 as a work area in various processes. This work area temporarily stores the current time data read from the clock circuit 30 based on the instruction of the reservation command input by handwriting, the memo data read from the memo memory 25, and the handwritten input coordinate data received from the coordinate input unit 13b. It is used for temporary storage.

Here, the above-mentioned reservation command will be described. The reservation command is a command for instructing the input of certain specific data. In the present embodiment, the date, time, and registered variable length memo data are input by handwriting each corresponding reservation command. It is possible.

FIG. 3 is a schematic diagram showing the internal structure of the reservation command memory 24 storing the reservation commands. As shown in the figure, in the reservation command memory 24, a date command "outer 1", a time command "outer 2", and a memo command, which are reserved commands, are stored.

[0037]

[Outer 1]

[0038]

[Outside 2]

Image data such as "MEMO:", ... Is stored, and corresponding to each of these reservation commands, the above-mentioned reservation commands such as date data, time data, memo data ,. Data (instruction content data) indicating specific data to be instructed is stored. For example, if the reservation command "outside 3" is entered by handwriting,

[0040]

[Outside 3]

The hand recognition unit 23 collates the image data of the handwritten input with the image data of the date command "outer 4" in the reserved command memory 24 to check the date command "outside".

[0042]

[Outside 4]

[0043]

[Outside 5]

The CPU 21 recognizes the input of "5" and notifies the CPU 21 that the stored instruction content data corresponds to the date data. Upon receiving this notification, the CPU 21 reads the date data from the clock circuit.

Next, the data input method by the reservation command in the embodiment of the above construction will be described with reference to FIG. This figure is a schematic diagram for explaining a method of inputting desired data to a desired position by handwriting a reservation command in an uninputted area in addition to handwritten input data which has already been input. In the figure, a rectangular frame shows the display screen of the input / display device 13.

As shown on the left side of FIG. 9A, the image data represented by the spiral 41 and the image data represented by the three cross marks 42 are already handwritten in the upper part of the screen of the input / display device 13. Has been done. In this way, it is assumed that after the image data is handwritten with the pen 11, the current date needs to be input in the lower right portion in a size smaller than the standard. In this case, as shown in the same figure, the English character D "outer 6" enclosed in a circle with a size smaller than the standard is handwritten and input at the head position where the current date should be input.

[0047]

[Outside 6]

On the device side, the written "outer 7" is called by the date in the reservation command (

[0049]

[Outside 7]

When it is recognized as a date command designating "input", as shown on the right side of the figure, the image data "93.
Enter "2.4" with the same font size as the entry size of the date command "outer 8".

[0051]

[Outside 8]

Display (input) from the entry position of the date command on the display screen of the display device 13. In addition, the above date command (reservation command for date input) is
It is not limited to "outer 9" as shown in the figure, but for example, "outer 10", "date:"

[0053]

[Outside 9]

[0054]

[Outside 10]

Also, etc. can be used as a date command. In this way, the current date "9" is input by handwriting the date command "outer 11".

[0056]

[Outside 11]

After inputting "3.2.4" into the input / display device 13, it is now necessary to input the current time in a size larger than the standard in the lower left corner. In this case, as shown on the left side of Figure (b), the letter T enclosed in a circle with a size larger than the standard is placed at the beginning position where the current time should be entered.
Hand-write (outside 12).

[0058]

[Outside 12]

On the device side, this written "outer 13
”In the reservation command

[0060]

[Outside 13]

Recognizing that this is a reserved command for instructing the input of data, as shown on the right side of FIG.
The image data “PM4: 28” of the current time data measured by the

[0062]

[Outside 14]

Entry position of the time command "outer 15" on the screen of the input / display device 13

[0064]

[Outside 15]

Display (input) from. The time command (reservation command for instructing the input of the current time) is not limited to "outer 16" as shown in the figure, and may be, for example, "hour" or "time".

[0066]

[Outside 16]

":" Can also be used as the time command. As another example, as shown in FIG. 6C, the image data represented by the spiral 45 and the image data represented by the three triangles 46 have already been input by handwriting. It is assumed that it is necessary to input the registered memo data in the memo memory 25 with a small size. In this case, as shown in the figure, "MEMO:" is handwritten in a size smaller than the standard at the head position where the memo data should be input.

As a result, the device recognizes the written "MEMO:" as a memo command for instructing the input of memo data in the reservation command, and as shown on the right side of FIG. The memo data 47 (15 x marks in 3 rows) read out from No. 25 is used as a memo command “MEM
Display (input) from the entry position of the memo command "" MEMO: "" on the screen of the input / display device 13 in the same size as the entry size of "O:".

Next, an operation for realizing data input by handwriting of such a reservation command will be described with reference to the flowchart of FIG. First, when the user performs a handwriting operation (handwriting input) with the pen 11 on the input / display device 13, the coordinate input unit 13b causes the handwriting input coordinate position (the normal position set on the coordinate input detection unit 13b at the position where the pen is operated). The coordinate position in the normalized coordinate system. In this embodiment, the normalized coordinate system set in the display unit 13a and the coordinate input unit 13b match each other), and this coordinate data is notified to the CPU 21 by interruption (S1). ).

The CPU 21 creates image data in which the input handwritten input coordinate data is the same as the locus drawn in chronological order and writes it in the image memory I26 (S2).

When the handwriting input by the user is completed and the interruption from the coordinate input unit 13b is interrupted for a predetermined time or longer, the CPU 21 determines that the handwriting input is completed,
The image data newly written in the image memory I26 by handwriting this time and the already input / displayed handwritten input image data stored in the image memory II27 are OR-synthesized and written in the display memory 28.
The display control unit 29 reads out the OR-combined image data from the display memory 28 and causes the display unit 13a to display an image corresponding to the image data (S3).

By the above operation, when the user performs handwriting input on the display screen of the input / display device 13 with the pen 11, the characters and figures input by the pen, the reservation command and the like are immediately displayed on the screen ( (See the drawings on the left side of Figures 3 (a), (b), and (c), respectively).

Next, the CPU 21 checks whether or not the pen-input handwritten image is a reservation command (S).
4). In this process, the CPU 21 causes the image memory I
The image data of the handwritten input stored in 26 is transferred to the command recognition unit 23, and the command recognition unit 23 is instructed to determine whether the handwritten input image data is a reservation command. The command recognition unit 23 collates the image data of the handwritten input with the image data of the reservation command stored in the reservation command memory 24,
Whether or not the image data input by handwriting is a reservation command is checked, and the recognition result is notified to the CPU 21.

When the CPU 21 knows from this notification that the reservation command has been input by the pen (S4, Yes),
It is checked whether or not the reserved command input by the pen is a date / time command (date command or time command) (S
5).

If it is a date / time command (S5, Y
es), the text data of the current time is read from the clock circuit 30 (S6), and if the reservation command input with the pen is a date command, the text data of the current date (see the drawing on the right side of FIG. 3A), the reservation If the command is a time command, the text data of the current time (see the drawing on the right side of FIG. 3B) is sent to the image processing unit 31, and the image processing unit 31 is instructed to generate these image data. The image processing unit 31 receives the instruction from the CPU 21.
The image data is generated from the text data of the current date or the text data of the current time transferred from the CPU 21, and the generated image data is written in the image development memory 32 (S7).

On the other hand, when the reservation command is not the date / time command in step S5 (S5, No),
It is checked whether the reservation command is a memo command (S8), and if it is a memo command (S8, Yes).
s), the memo processing unit 31 reads the memo data in the text format from the memo memory 25 and sends the memo data to the image processing unit 31 to generate the image data of the memo data.
Instruct. The image processing unit 31 converts the text memo data transferred from the CPU 21 into image data, and writes this image data in the image development memory 32 (S9).

Subsequent to the generation of the image data in step S7 or S9, the CPU 21 performs an image calculation to calculate the ratio of the size of the handwritten input reservation command stored in the image memory I26 to the standard character size. Instruct the processing unit 31. The image processing unit 31 causes the calculation unit 33 to calculate the ratio based on this instruction (S10).

The image processing section 31 performs enlargement or reduction processing on the image data stored in the image development memory 32 in accordance with the calculated ratio, and a new enlargement or reduction by this processing is performed. Image data to the image development memory 32 again (S
11).

Subsequently, the image processing section 31 has the CPU 2
In accordance with an instruction from 1, the input area (display area) of the image data on the screen of the input / display device 13 is set to the coordinate data of the entry position of the reservation command input by handwriting or the reservation command in the image memory I26. Of the reserved command stored in the image expansion memory 32 in the area in the image memory I26 corresponding to the set data input area on the screen of the input / display device 13 The execution result (image data enlarged or reduced for input designated by the input reservation command) is transferred (S12).

Then, the CPU 21 makes the image memory I
The image data in 26 and the image data in the image memory II 27 are OR-combined at corresponding bit positions, and the result obtained by this logical operation is used in the image memory.
It is stored in II27 (S13).

Next, the CPU 21 causes the image memory II2
All the image data in 7 are written in the display memory 28, and the display control unit 29 reads this image data from the display memory 28 and displays the image on the screen of the input / display device 13 (S14).

By the above operation, the data designated by the reservation command (date / time command or memo command) corresponds to the entry size of the reservation command in the area corresponding to the entry position of the command on the screen of the input / display device 13. Displayed in size.

Next, the CPU 21 causes the image memory I2
6 is cleared (S15), the process returns to step S1 to wait for the next handwriting input. On the other hand, in step S5, the reservation command is not the date / time command (S5, N
o), if it is not a memo command in step S8 (S
8, No), other reserved commands. In this case, an edit process is executed in which the data designated by these reserved commands are input at the entry positions of those commands in a size corresponding to the entry size of those commands. After doing (S1
6) The procedure moves to step S13. by this,
Input processing of data other than the date / time data and the memo data, which is instructed by the input reservation command, is performed.

If it is determined in step S4 that the input character is not a reserved command (S4, No), the process immediately proceeds to step S13. As a result, when normal image data such as characters and figures other than commands is input, the image data as input is input as it is and displayed on the screen of the input / display device 13 as it is.

As described above, when the user inputs a reservation command, the data instructed by the reservation command is automatically read out and not only input from the entry position of the reservation command, but also the reservation command is entered. The size of the input data changes according to the size. That is, by inputting only one simple reservation command, desired data such as date and time, and long memo data can be input easily and at high speed at a desired position. Further, the size of the data input in this manner can be easily changed by changing the size of the reservation command to be input.

Although the date and time data and the memo data can be input by the handwriting input reservation command in the above embodiment, the present invention is not limited to this, and the inside of the device or the connection to the device can be realized. Any data can be input to the screen by inputting the reservation command as long as the data can be called from the external device.

Further, although only one memo command (reservation command for memo call) can be used in the present embodiment, the present invention is not limited to this, and, for example, for a plurality of memo data. "MEMO1:", "M
It is also possible to use a plurality of memo commands having different names such as "EMO2:" so that a plurality of memo data can be input by the corresponding memo commands.

[0088]

As described above, according to the present invention, the data designated by the command is input to the entry position of the command only by handwriting the reserved simple command to the desired data input position. It is possible to easily and quickly input the required data to the desired position at any time.

Further, since the data designated by the command is input in a size corresponding to the entry size of the command, the work of enlarging or reducing the desired data and inputting it can be performed easily and at high speed.

[Brief description of drawings]

FIG. 1 is an external view of an embodiment of the present invention.

FIG. 2 is a block diagram showing a system configuration of the above embodiment.

FIG. 3 is a schematic diagram showing an internal configuration of a reservation command memory.

FIG. 4 is a diagram illustrating a reservation command input method.

FIG. 5 is a flowchart illustrating the operation of the above embodiment.

[Explanation of symbols]

 13 input / display device 13a display unit 13b coordinate input unit 21 CPU 22 program memory 23 command recognition unit 24 reserved command memory 25 memo memory 26 image memory I 27 image memory II 28 display memory 29 display control unit 30 clock circuit 31 image processing unit 32 image expansion memory 33 operation unit 34 page file 36 work memory

Claims (4)

[Claims] 1. A display unit for displaying image data, a coordinate input unit for detecting coordinates of a pen operation position on a display screen of the display unit, and a pen operation position detected by the coordinate input unit. Command recognition means for recognizing the input of the command reserved in advance based on the coordinate data, and when the input of the command reserved in advance is recognized by the command recognition means, the data indicated by the command is displayed in the display means. A handwriting input device comprising: an editing unit for inputting the command at the entry position on the screen. 2. The editing means reads the time data from the clock circuit and inputs the time data to the entry position of the command when the previously reserved command is a time command. The handwriting input device described. 3. The editing means, when the command reserved in advance is a memo command, reads predetermined memo data from a memory and inputs the memo data into a writing position of the command. 1. The handwriting input device described in 1. 4. The editing means determines the size of the data designated by the command to be entered at the entry position of the command, according to the entry size of the command reserved in advance. The handwriting input device according to 1, 2, or 3.