JPH0836458A - Handwriting input device - Google Patents

Abstract

PURPOSE:To improve the working efficiency of a data input by enabling the switch of a command input and the data input even if any position on a tablet is operated by a handwriting input device. CONSTITUTION:In a coordinate input part 101 inputting the coordinate of a tablet, coordinate input time when the coordinate is continuously inputted and the non-coordinate input time showing the interval from the coordinate input to the next coordinate input is timed by a timer 107. When these timed coordinate input time and non-coordinate input time are within prescribed time, the counting of a counter 108 is performed. When the value of the counter reaches a prescribed value, a mode switch command detection part 102 controls a switch 103 and performs the switch of the transmission route of coordinate value data from a coordinate input part to a computer circuit 106.

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 having a coordinate input unit, and more particularly to a handwriting input device for performing handwriting input while switching between command commands and input data.

[0002]

2. Description of the Related Art FIG. 9 is a block diagram showing an example of a conventional handwriting input device. In the figure, 101 is a coordinate input unit, 103 is a switch, 104 is a data storage unit, 105
Is a command interpreting unit, 106 is a computer circuit, and 902 is a specific coordinate detecting unit. In such a handwriting input device, the coordinates on the tablet (not shown) input from the coordinate input unit 101 are sent to the specific coordinate detection unit 902, and the specific coordinate detection unit 902 determines whether the coordinates are within a certain range. .

If the coordinates are within a certain range, the mode of the switch 103 is switched, and the data from the coordinate input unit 101 is transferred to the data storage unit 104 or the command interpretation unit 1.
Send to one of the specified 05. Here, the data storage unit 10
4 in the mode in which data is transmitted, the input coordinate value sequence is transmitted to the data storage unit 104, and the computer circuit 1
06 to be sent to the computer circuit 10 as handwritten graphic data.
6 is processed.

In the mode in which the data from the coordinate input section 101 is transmitted to the command interpreting section 105, the command is interpreted from the coordinate value sequence input in the command interpreting section 105 and the command is transmitted to the computer circuit 106. Then, the computer circuit 106 performs processing according to the command. Here again, when the specific coordinate detection unit 902 detects the data of the fixed range coordinates, the switch is made so as to transmit the data to the different side of the data storage unit 104 side and the command interpretation unit 105 side. Switch 103. There is also a method of switching the switch 103 using a signal obtained from other than the coordinate input unit 101, but in this case, a corresponding signal is generated by operating a button provided in another part of the device.

[0005]

In such a handwriting input device, it is determined whether a coordinate value within a certain range is obtained, it is determined whether it is a command or data, and the switch is switched. Therefore, the input operator has to move his / her hand in order to operate the switching button displayed within the above-mentioned certain range on the display provided on the tablet. Therefore, every time the input operator switches to command or data input, the input operation is interrupted, the hand is moved to touch the button, and the hand is returned to the original position to restart the input operation, which is a complicated operation. There was a demand for improvement in terms of operation.

Therefore, an object of the present invention is to provide a handwriting input device capable of switching between command input and data input regardless of which position of the tablet is operated without moving the hand during data input work. To do.

[0007]

In order to solve such a problem, the present invention provides a coordinate input section for inputting coordinates on a tablet, a data storage section for storing coordinate value data from the coordinate input section, In a handwriting input device including a command interpreting unit that interprets and generates a command from coordinate value data, and a computer circuit that executes handwriting processing using stored data in a data storage unit according to the command, the coordinate value in the coordinate input unit When the coordinate input time for continuous input and the non-coordinate input time that indicates the interval from one coordinate input to the next coordinate input and the coordinate input time and non-coordinate input time measured by the timer are within the specified time The counter that performs the counting operation and the switching of the transmission path of the coordinate value data from the coordinate input section to the computer circuit when the value of the counter reaches a predetermined value It is provided with a switching control means for performing.

Further, a moving distance measuring unit is provided for measuring the moving distance of the coordinates when the coordinates are continuously input in the coordinate input unit and the moving distance when the coordinates are not input, and the counter measures each distance measured by the moving distance measuring unit. The counting operation is performed when the moving distance is less than a certain value. Further, the timer is activated when the coordinate value is detected by the coordinate input section. Further, each output side of the data storage section and the command interpretation section is connected to the computer circuit, and a switch is provided between the coordinate input section and each input side of the data storage section and the command interpretation section, and the switching control means is a switch. Is driven to alternately switch the connection between the coordinate input section and the input of the data storage section and the connection between the coordinate input section and the command interpretation section.

Further, the coordinate input section is connected to the respective input sides of the data storage section and the command interpretation section, and a switch is provided between each output side of the data storage section and the command interpretation section and the computer circuit to perform switching control. The means drives the switch each time the value of the counter reaches a predetermined value, and alternately connects the output of the data storage unit and the computer circuit and the connection of the output of the command interpreting unit and the computer circuit. It is a thing. Further, the switching control means drives the switch based on the coordinate value data following the detection of the predetermined command of the command interpreting unit and transfers the command of the command interpreting unit to the computer circuit.

[0010]

The coordinate input time at which coordinate values are continuously input in the coordinate input section and the non-coordinate input time indicating the interval from one coordinate input to the next coordinate input are counted by a timer. When the input time is within the predetermined time, the counter is counted, and when the value of the counter reaches the predetermined value, the transmission path of the coordinate value data from the coordinate input unit to the computer circuit is switched. As a result, the command input and the data input can be switched regardless of which position of the tablet is operated during the data input work, and therefore the data input work can be efficiently performed.

Further, the counting operation is performed by the counter when the moving distance of the coordinates when the coordinates are continuously input in the coordinate input unit and the moving distance when the coordinates are not input are less than a certain value. As a result, if the thresholds such as the predetermined time, the predetermined value, and the constant value are appropriately selected and set, both the coordinate input time and the non-coordinate input time are short as in the case of writing a dotted line on the tablet, Furthermore, both the moving distance at the time of inputting the coordinates and the moving distance at the time of non-coordinate input are both short, and these occur repeatedly many times, and the mode switching signal for switching the above-mentioned transmission path can be easily identified. In addition, the timer is started when the coordinate value is detected by the coordinate input unit. Further, a switch provided between the coordinate input section and each input side of the data storage section and the command interpretation section is driven to connect the coordinate input section and the input of the data storage section, and to connect the coordinate input section and the command interpretation section. The connections are switched alternately and connected. In addition, a switch provided between each output side of the data storage unit and the command interpretation unit and the computer circuit is driven to connect the output of the data storage unit and the computer circuit, and the output of the command interpretation unit and the computer circuit. The connections are switched alternately and connected. Further, the switch is driven based on the coordinate value data following the predetermined command detection of the command interpreting unit, and the command of the command interpreting unit is transferred to the computer circuit.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a handwriting input device according to the present invention. In the figure, the same parts as those of the conventional device shown in FIG. 9 are designated by the same reference numerals, and the description thereof will be omitted. That is, the device of this embodiment is the specific coordinate detecting unit 9 of FIG.
Instead of 02, the mode switching command detection unit 10 which is a switching control means for controlling switching of the switch 103.
2, a timer 107, and a counter 108 are provided. Here, it is assumed that the coordinate input unit 101 inputs a coordinate value when a pen or a finger is in contact with a tablet (not shown) and outputs the coordinate value. If the coordinate value is output even when the pen or finger is away from the tablet, and the signals indicating that the coordinates are apart are output at the same time, the coordinate input unit 101 sets the coordinate output mode when the pen or the like is away. It is not transmitted to the switching command detection unit 102.

Next, the operation of this embodiment apparatus will be described with reference to the flow chart of FIG. When the entire handwriting input device shown in FIG. 1 is activated, the mode switching command detection unit 102 resets the timer 107 and the counter 108 in step 202. At the same time, the timer 107 starts time measurement. When the coordinate input is detected, the mode switching command detection unit 102
Executes timer value reading in step 203.
The value of the timer 107 in this case represents the non-coordinate input time. When this value is smaller than the constant threshold value 1, the counter value is incremented by 1 in step 205. Here, in this embodiment, the constant threshold value 1 is set to 0.2 seconds, but this value is not an essential problem and may be set appropriately.

In this case, the mode switching command detector 102 resets the timer 107 in step 205 and returns to step 203. In this case, the timer 10
7 continuously measures the coordinate input time. Here, when the continuous coordinate input is interrupted, the mode switching command detection unit 102 executes the timer value reading in step 203. The read timer value represents the continuous coordinate input time, and the threshold value 1 is 0.2 seconds.
If it is smaller than the counter 10 in step 205,
8 is incremented by 1, the timer reset is executed in step 206, and the timer 107 measures the non-coordinate input time this time.

In this way, the non-coordinate input time and the coordinate input time are alternately measured by the timer 107. When the non-coordinate input time is smaller than the threshold value 1 and the coordinate input time is smaller than the threshold value 1 continuously and repeatedly, the number of times is counted by the counter 108. Next, when it is determined whether the timer value and the threshold value 1 are large and the threshold value 1 is larger and the determination in step 204 is “NO”, the mode switching command detection unit 102 proceeds to step 207. Go to counter 10
The value of 8 is compared with the threshold value of 2. In this embodiment, the threshold value 2 is set to 3, but this is not an essential problem and any value may be used.

If the value of the counter 108 is equal to the threshold value 2 and "YES" is determined in step 207, the mode switching command detecting unit 102 determines that the mode switching signal has been detected and switches the switch 103 in step 208. Switch. Immediately before this, the coordinate input unit 10
When the data output from 1 has been sent to the data storage unit 104, the data is switched to the command interpretation unit 105 side. In the opposite case, the data of the coordinate input unit 101 is switched to be transferred to the data storage unit 104 side.

After the switch 103 is switched in step 208, or when the counter value is not equal to the threshold value 2 and it is determined to be “NO” in step 207, the mode switching command detection unit 102 determines that the step 202 is complete. Both the counter 108 and the timer 107 are reset with, and the continuous coordinate input time or the non-coordinate input time is continuously measured.

By the way, the data input to the data storage unit 104 through the switch 103 is transmitted to the computer circuit 106 for processing. Similarly, the command interpretation unit 105
Then, the command is interpreted and generated from the input coordinate value sequence. Then, this command is a computer circuit 106
And the computer circuit 106 processes the data from the data storage unit 104 according to the command.

In this embodiment, in step 207,
Although it is configured to detect the case where the value of the counter 108 is equal to the threshold value 2, the value of the counter 108 is equal to the threshold value 3
The above may be detected and the case where the threshold is smaller than 4. In this case, even if the threshold value 3 is set to 3 and the threshold value 4 is set to 4, the same operation as in the above embodiment can be realized. Furthermore, the threshold value 3 and the threshold value 4 may be different values.
Furthermore, in the present embodiment, the number of consecutive times when the continuous coordinate input time or the non-coordinate input time is first detected is counted when those times are shorter than the threshold value 1.
As shown in FIG. 3, a coordinate input detection determination step 209 is added so as to start only when a coordinate input signal is detected.
The mode switching command detection unit 102 may be configured to execute the switch switching in step S208 only when the coordinates are input in the order.

Next, FIG. 4 is a block diagram showing a second embodiment of the present invention. In this embodiment, the coordinate value of the coordinate input unit 101 is directly sent to the data storage unit 104 and the command interpretation unit 105 without passing through the switch 103. At the same time, it is also transmitted to the mode switching command detection unit 102.
The operation of the mode switching command detection unit 102 is shown in the flowchart of FIG. 2 already described. That is, the mode switching command detection unit 102 switches the switch 103 every time a mode switching signal is detected,
Data in the data storage unit 104, or command interpretation unit 1
The command command generated in 05 is transferred to the computer circuit 106.

Next, FIG. 5 is a block diagram showing a third embodiment of the present invention. In this case, the switch 103 is set so that the data in the data storage unit 104 is initially transferred to the computer circuit 106. Then, when one of the predetermined commands is detected by the command interpreting unit 105, the display is performed on a display unit (not shown) formed integrally with the tablet, and subsequently the coordinate value input is the mode. It is transmitted to the switching command detection unit 102. At the same time, the coordinate value is also transmitted to and accumulated in the data accumulation unit 104.

In this case, the mode switching command detecting section 102 uses the timer 107 and the counter 108 to switch 1 only when the mode switching signal is detected.
03 is switched to transfer the instruction command generated by the command interpreting unit 105 to the computer circuit 106 and execute the processing. After that, the switch 103 is switched again, and the data in the data storage unit 104 is transmitted to the computer circuit 106. Here, when the mode switching command detection unit 102 cannot detect the mode switching signal, the switch 103 cannot be switched. Therefore, the data subsequent to the data including the coordinate value data regarded as the command by the command interpretation unit 105 is included. However, through the switch 103, the computer circuit 10
6 will be transferred.

Next, FIG. 6 is a block diagram showing a fourth embodiment of the present invention, in which a moving distance measuring unit 309 is provided in the apparatus of the first embodiment of FIG. FIG. 7 is a flowchart showing the operation of the device of the fourth embodiment. The difference from the flowchart of FIG. 2 is that the movement distance measuring unit 309 is provided so that the operation of the mode switching command detecting unit 102 can be changed. Step 404 of comparing the distance with the threshold value 3 is provided, and if the movement distance is smaller than the threshold value 3, the counter value is increased in step 205, and
If the moving distance is larger than the threshold value 3, it is determined in step 207 whether or not the counter value is equal to the threshold value 2.

As a result, the time for one coordinate input and the interval time for coordinate input are shorter than the threshold value 1, and both the moving distance during coordinate input and the moving distance during non-coordinate input are threshold values. When the event of being smaller than 3 is repeated the number of times indicated by the threshold value 2, it is detected as a mode switching signal, and switch switching is executed in step 208. In this embodiment, the threshold value 1 is 0.2 seconds, the threshold value 2 is 3 times, and the threshold value 3 is 2 pixels, but there is no essential problem and any value may be used. By configuring in this way, like when writing a dotted line,
Both the coordinate input time and the non-coordinate input time are short, and the moving distance at the coordinate input and the moving distance at the non-coordinate input are both short, and it is possible to distinguish between the case where these occur repeatedly many times and the mode switching signal.

As for the flowchart of FIG. 7, as in the flowchart of FIG. 3, by incorporating step 209 of coordinate input detection judgment immediately before the timer / counter reset in step 202, a short moving distance can be achieved in a short time. It is possible to detect only the mode switching signal started from the coordinate input of.

Next, FIG. 8 is a block diagram showing a fifth embodiment of the present invention. In this embodiment, when the mode switching command detection unit 102 detects a mode switching signal according to the flowchart of FIG.
Is switched to transfer the data in the data storage unit 104 or the command command generated by the command interpretation unit 105 to the computer circuit 106 to execute the processing. Also, with the same configuration, the command interpreting unit 105 displays the content only when the command command determined from the input coordinate data sequence can be generated, and the subsequent coordinate data is displayed as the mode switching command detecting unit 102 and the data. Accumulator 1
04 and transfer to.

The mode switching command detector 1
If the mode switching signal can be detected in 02, the switch 103 is switched to transfer the instruction command detected immediately before to the computer circuit 106. Further, when the mode switching command detecting unit 102 cannot detect the mode switching signal, the switch 103 switches the coordinate data sequence interpreted as the command and the subsequent coordinate data sequence from the data storage unit 104 to the computer. Circuit 1
Transfer to 06. In the above description, the switch 10
The command interpreting unit 105 and the data storage unit 1 are used to switch 3
However, it is not possible to switch between the data accumulating unit 104 and the character recognizing unit by combining the character recognizing unit and the like, and to switch three or more parts such as the data accumulating unit 104, the character recognizing unit, and the command interpreting unit 105. Is also easily possible.

As described above, the handwriting input device is provided with the timer for detecting the interval between the continuous short coordinate input and the short non-coordinate input, and the counter for detecting the repetition of the short coordinate input and the non-coordinate input. Because of this, it is possible to select any of the command input mode and the coordinate data input mode at any position of the coordinate input section in distinction from the case where a dotted line is entered. As a result, the useless movement of moving the hand to press the mode switching button provided in advance is eliminated, and the handwriting input can be efficiently performed. In addition, in accordance with the above features, by providing a part that detects the movement distance, you can accurately perform mode switching without confusing the signal for mode switching with the dakuten or dotted line entered in fast motion. can do.

[0029]

As described above, according to the present invention, the coordinate input time at which the coordinate values are continuously input in the coordinate input section and the non-coordinate input time indicating the interval from the coordinate input to the next coordinate input are set by the timer. If the coordinate input time and the non-coordinate input time are counted within a predetermined time, the counter is counted, and when the counter value reaches the predetermined value, coordinate value data from the coordinate input section to the computer circuit Since the transmission path is switched, the pressing time and non-pressing time of pressing the tablet with the pen during the data input work are within the predetermined time, and such pressing / non-pressing is performed the predetermined number of times. By doing this, you can switch between command input and data input by pressing any position on the tablet, thus improving work efficiency during data input. It can be. Further, since the counter is configured to perform the counting operation when the moving distance of the coordinates when the coordinates are continuously input in the coordinate input unit and the moving distance when the coordinates are not input are equal to or less than the predetermined value, the above-described predetermined time, If the thresholds such as values and constant values are appropriately selected and set, both the coordinate input time and the non-coordinate input time are short, as in the case of writing a dotted line on a tablet, and the movement distance during coordinate input, It is possible to easily discriminate between the case where the movement distances are short when the non-coordinates are input and these are repeatedly generated many times, and the mode switching signal for switching the transmission path described above.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a handwriting input device of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment device.

FIG. 3 is a flowchart showing another operation of the first embodiment device.

FIG. 4 is a block diagram showing a second embodiment of the present invention.

FIG. 5 is a block diagram showing a third embodiment of the present invention.

FIG. 6 is a block diagram showing a fourth embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the device of the fourth embodiment.

FIG. 8 is a block diagram showing a fifth embodiment of the present invention.

FIG. 9 is a block diagram showing a conventional handwriting input device.

[Explanation of symbols]

101 ... Coordinate input section, 102 ... Mode switching command detection section, 103 ... Switch, 104 ... Data storage section, 1
05 ... Command interpreting unit, 106 ... Computer circuit, 107 ...
Timer, 108 ... Counter, 309 ... Moving distance measuring unit.

Claims (6)

[Claims] 1. A coordinate input section for inputting coordinates on a tablet, a data storage section for storing coordinate value data from the coordinate input section, and a command interpretation for interpreting and generating a command from the coordinate value data. And a computer circuit that executes a handwriting process using the accumulated data of the data accumulating unit according to the command, the coordinate input time and the coordinate input in which the coordinates are continuously input in the coordinate input unit A timer for measuring a non-coordinate input time indicating an interval until the coordinate input, a counter for performing a counting operation when the coordinate input time and the non-coordinate input time counted by the timer are within a predetermined time, and a value of the counter Switching control for switching the transmission path of the coordinate value data from the coordinate input section to the computer circuit when reaches a predetermined value Handwriting input apparatus characterized by comprising a stage. 2. The handwriting input device according to claim 1, further comprising a moving distance measuring unit that measures a moving distance of coordinates when coordinates are continuously input in the coordinate input unit and a moving distance when non-coordinates are input. The handwriting input device, wherein the counter performs a counting operation when each moving distance measured by the moving distance measuring unit is equal to or less than a certain value. 3. The handwriting input device according to claim 1, wherein the switching control means activates the timer when coordinates are detected by the coordinate input unit. 4. The handwriting input device according to claim 1, wherein each output side of the data storage unit and the command interpretation unit is connected to the computer circuit, and the coordinate input unit and the data storage unit and the command interpretation unit are connected. A switch is provided between each input side of the switch, and the switching control means drives the switch to alternately connect the coordinate input section and the input of the data storage section and the connection between the coordinate input section and the command interpretation section. A handwriting input device characterized by switching control. 5. The handwriting input device according to claim 1, wherein the coordinate input section is connected to each input side of the data storage section and command interpretation section, and each output of these data storage section and command interpretation section is connected. A switch is provided between the side and the computer circuit, and the switching control means drives the switch each time the value of the counter reaches a predetermined value to connect the output of the data storage unit with the computer circuit and the command. A handwriting input device characterized by alternately switching and controlling connection between an output of an interpretation unit and a computer circuit. 6. The handwriting input device according to claim 1, wherein the coordinate input section is connected to each input side of the data storage section and command interpretation section, and each output side of the data storage section and command interpretation section is connected. A switch is provided between the computer circuit and the computer circuit, and the switching control means drives the switch when a predetermined command is detected in the command interpreting unit and coordinate value data following this command is input, and the command interpreting is performed. A handwriting input device characterized in that a command generated by the unit is transferred to the computer circuit via a switch.