JP2022020470A - Display device, display method and program - Google Patents

Abstract

To simplify an operation of changing a display mode of an image based on second handwritten data input after the input of first handwritten data.SOLUTION: A display device includes reception means for receiving input of handwritten data by input means, and control means for changing a display mode of an image based on second handwritten data displayed in a display unit when the reception means receives a predetermined operation for the second handwritten data whose input is received after the input of first handwritten data that the reception means has received.SELECTED DRAWING: Figure 4

Description

The present invention relates to display devices, display methods and programs.

A display device has been developed that accepts input of handwritten data by an input means such as a pen and displays an image based on the handwritten data. For example, a display device that changes the density of a character color in a text box when it detects that the text box is pressed after receiving input of a character by the text box is disclosed (for example, Patent Document 1).

The image based on the second handwritten data can be distinguished from the image based on the first handwritten data displayed on the display device and the image based on the second handwritten data input after the input of the first handwritten data. There is a request to change the display mode.

In response to such a request, it is difficult to distinguish a plurality of handwritten data even if the conventional technique is applied. Therefore, for example, an image based on the second handwritten data overlaps with an image based on the first handwritten data. When the second handwritten data is input so as to be in a position, there is a problem that the display mode of the image based on the second handwritten data cannot be changed by a simple operation for the second handwritten data whose display mode is desired to be changed. There is.

The disclosed technique aims to simplify the operation of changing the image display mode based on the second handwritten data input after the input of the first handwritten data.

The disclosed technology is a reception means that accepts input of handwritten data by an input means, and a predetermined operation for a second handwritten data that is accepted after the input of the first handwritten data accepted by the reception means. It is a display device including a control means for changing the display mode of an image based on the second handwritten data displayed on the display unit.

It is possible to simplify the operation of changing the display mode of the image based on the second handwritten data input after the input of the first handwritten data.

It is a figure which shows an example of the whole structure of a display device. It is a figure which shows an example of the hardware composition of a display device. It is a figure which shows an example of the perspective view of a pen. It is a figure which shows an example of the function of the display device which concerns on 1st Embodiment. It is a figure which shows an example of the flow of the display mode change processing which concerns on 1st Embodiment. It is a figure for demonstrating the result of the display mode change process which concerns on 1st Embodiment. It is a figure which shows an example of the function of the display device which concerns on 2nd Embodiment. It is a figure which shows an example of the flow of the display mode change processing which concerns on the 2nd Embodiment. It is a figure for demonstrating the result of the display mode change process which concerns on the 2nd Embodiment. It is a figure for demonstrating the result of the display mode change process which concerns on the modification of the 2nd Embodiment. It is a figure which shows an example of the function of the display device which concerns on 3rd Embodiment. It is a figure which shows an example of the flow of the display mode change processing which concerns on 3rd Embodiment. It is a figure for demonstrating the result of the display mode change process which concerns on 3rd Embodiment. It is a figure which shows an example of the whole structure of the display system which concerns on 4th Embodiment. It is a figure which shows an example of the function of the display device which concerns on 4th Embodiment. It is a figure which shows an example of the flow of the display mode change processing which concerns on 4th Embodiment. It is the first figure which shows the other configuration example of a display device. FIG. 2 is a second diagram showing another configuration example of the display device. FIG. 3 is a third diagram showing another configuration example of the display device. FIG. 4 is a fourth diagram showing another configuration example of the display device.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, terms related to this embodiment will be described. The handwritten data is data in which a coordinate point sequence in which the user continuously moves the input means on the display is displayed as a locus. In addition, a series of operations in which the user presses the input means against the display, moves it continuously, and then releases it from the display is called a stroke, and the data handwritten by the stroke is called stroke data. The stroke data can be said to be a coordinate group indicating a coordinate point sequence.

The handwritten data has one or more stroke data. Specifically, in the handwritten data, the time from the end of one stroke to the start of the next stroke, that is, the time from when the input means is separated from the display to when the input means is brought into contact is shorter than a predetermined time. It is the data that summarizes the stroke data. Therefore, the handwritten data includes the coordinate group indicated by the stroke data included in the handwritten data.

The input means is a means for inputting handwritten data by designating the coordinates of the display. For example, a pen, a human finger or hand, a rod-shaped member, or the like is an example of an input means.

Replacement means changing one or more characters to another one or more characters. Swapping means swapping characters with characters in a character string having two or more characters.

Dragging is an operation of holding down a mouse button and moving it, and dropping is an operation of releasing a mouse button at a desired location. Characters are moved by dragging. The position of the character is determined by the drop.

Next, the configuration of the display device will be described.

FIG. 1 is a diagram showing an example of the overall configuration of a display device.

In (a), as an example of the display device 2, the display device 2 used as a horizontally long electronic blackboard suspended from a wall is shown.

(B) shows a display device 2 used as a vertically long electronic blackboard suspended from a wall.

(C) shows the display device 2 placed flat on the desk 230. Since the display device 2 has a thickness of about 1 cm, it is not necessary to adjust the height of the desk even if it is placed flat on a general desk. Also, it can be easily moved.

The display device 2 is provided with a display 220 as an example of the display unit. The user U can handwrite (also referred to as input or drawing) characters or the like on the display 220 by using the pen 2500.

FIG. 2 is a diagram showing an example of the hardware configuration of the display device.

The display device 2 has the configuration of an information processing device or a computer. The display device 2 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, and an SSD (Solid State Drive) 204.

The CPU 201 controls the operation of the entire display device 2. The ROM 202 stores a program used for driving the CPU 201 such as the CPU 201 and the IPL (Initial Program Loader). The RAM 203 is used as a work area of the CPU 201. The SSD 204 stores various data such as a program for the display device 2.

The display device 2 includes a display controller 213, a touch sensor controller 215, a touch sensor 216, a display 220, a power switch 227, a tilt sensor 217, a serial interface 218, a speaker 219, a microphone 221 and a wireless communication device 222, and an infrared I / F 223. , Power control circuit 224, AC adapter 225, and battery 226.

The display controller 213 controls and manages the screen display in order to output the output image to the display 220 or the like. The touch sensor 216 detects that the pen 2500, the user's hand, or the like (the pen or the user's hand serves as an input means) touches the display 220. Further, the touch sensor 216 receives the pen ID.

The touch sensor controller 215 controls the processing of the touch sensor 216. The touch sensor 216 inputs coordinates and detects coordinates. In the case of an optical method, for example, in the case of an optical method, two light receiving / receiving devices installed at both upper ends of the display 220 emit a plurality of infrared rays in parallel with the display 220 to display the coordinates. This is a method of receiving light that is reflected by a reflecting member provided around the 220 and returns on the same optical path as the optical path of the light emitted by the light receiving element.

The touch sensor 216 outputs the position information of the infrared rays emitted by the two light receiving / receiving devices blocked by the object to the touch sensor controller 215, and the touch sensor controller 215 specifies the coordinate position which is the contact position of the object. Further, the touch sensor controller 215 has a communication unit 215a and can wirelessly communicate with the pen 2500.

For example, when communicating according to a standard such as Bluetooth (registered trademark), a commercially available pen can be used. If one or more pens 2500 are registered in the communication unit 215a in advance, the user can communicate without setting the connection for communicating the pens 2500 with the display device 2.

The power switch 227 is a switch for switching ON / OFF of the power of the display device 2. The tilt sensor 217 is a sensor that detects the tilt angle of the display device 2. It is mainly used to detect whether the display device 2 is used in the installed state of FIG. 5 (a), FIG. 5 (b), or FIG. 5 (c), depending on the installed state. The thickness of characters etc. can be changed automatically.

The serial interface 218 is a communication interface with the outside such as USB. It is used for inputting information from the outside. The speaker 219 is used for audio output and the microphone 221 is used for audio input. The wireless communication device 222 communicates with a terminal carried by the user and relays, for example, a connection to the Internet. The wireless communication device 222 communicates by Wi-Fi, Bluetooth (registered trademark), etc., but the communication standard does not matter. The wireless communication device 222 forms an access point, and when the SSID (Service Set Identifier) and the password obtained by the user are set in the terminal carried by the user, the access point can be connected.

It is preferable that the wireless communication device 222 is provided with two access points.
Access point → Internet
b. Access point-> internal network-> Internet The access point of a is for external users, and the user cannot access the internal network, but can use the Internet. The access point of b is for internal users, and the users can use the internal network and the Internet.

The infrared I / F 223 detects the display device 2 arranged next to it. Only the display device 2 arranged next to it can be detected by utilizing the straightness of infrared rays. It is preferable that one infrared ray I / F 223 is provided on each side, and it is possible to detect in which direction of the display device 2 the other display device 2 is arranged. As a result, the screen expands, and handwritten information handwritten in the past (handwritten information on another page with the size of one display 220 as one page) and the like can be displayed on the adjacent display device 2.

The power supply control circuit 224 controls the AC adapter 225 and the battery 226, which are the power supplies of the display device 2. The AC adapter 225 converts the alternating current shared by the commercial power supply into direct current.

If the display 220 is so-called electronic paper, it can also be driven by the battery 226 because it consumes little or no power to maintain the display of the image. This makes it possible to use the display device 2 for applications such as digital signage even in places where it is difficult to connect a power source such as outdoors.

Further, the display device 2 includes a bus line 210. The bus line 210 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 201 shown in FIG.

The touch sensor 216 is not limited to the optical type, but is a capacitive touch panel that specifies a contact position by detecting a change in capacitance, and a contact position is specified by a voltage change between two opposing resistance films. Various detection means such as a resistance film type touch panel and an electromagnetic induction type touch panel that detects electromagnetic induction generated by contact of a contact object with a display unit and specifies a contact position may be used. The touch sensor 216 may be a method that does not require an electronic pen to detect the presence or absence of touch of the pen tip. In this case, you can use your fingertips or a pen-shaped stick to perform touch operations. The pen 2500 does not have to be an elongated pen type.

FIG. 3 is a diagram showing an example of a perspective view of the pen.

A pen 2500 that has a built-in power supply and can send commands to the display device 2 is called an active pen (a pen that does not have a built-in power supply is called a passive pen). The pen 2500 in FIG. 3 has one physical switch on the pen tip, one on the pen bottom, and two on the side of the pen. The pen tip is for writing, the pen bottom is for erasing, and the pen side is for assigning user functions. Is. The pen 2500 of the present embodiment has a non-volatile memory and stores a pen ID that does not overlap with other pens.

If the pen has a switch, it is possible to reduce the operation procedure of the user's display device 2. A pen with a switch mainly refers to an active pen, but since a passive pen that does not have a built-in power supply can generate power only by an LC circuit in the electromagnetic induction method, it includes not only an active pen but also an electromagnetic induction type passive pen. Pens with optical, infrared, and capacitive switches other than electromagnetic induction are active pens.

The hardware configuration of the pen 2500 is the same as that of a general control method including a communication function and a microcomputer. The input method of the coordinates of the pen 2500 includes an electromagnetic induction method, an active electrostatic coupling method, and the like. Further, the pen 2500 may have functions such as pen pressure detection, tilt detection, and a hover function (displaying a cursor before the pen touches it).

FIG. 4 is a diagram showing an example of the function of the display device according to the first embodiment.

The display device 2 includes a contact position detection unit 21, a contact time measurement unit 22, a drawing data generation unit 23, a contact area determination unit 24, an input time interval determination unit 25, a display control unit 26, and a data recording unit. 27, a network communication unit 28, an operation reception unit 29, and a storage unit 30 are provided.

Each function of the display device 2 is a function realized by operating any of the components shown in FIG. 2 by an instruction from the CPU 201 according to a program developed on the RAM 203 from the SSD 204. It is a means.

The contact position detection unit 21 detects the coordinates of the position where the pen 2500 is in contact. The contact position detection unit 21 is realized by the touch sensor controller 215 and the touch sensor 216. The contact position detection unit 21 is an example of a reception means that accepts input of handwritten data by the input means.

The contact time measuring unit 22 starts from the time when the touch sensor 216 changes from the state where the light is detected to the state where the light cannot be detected, and the time until the touch sensor 216 returns to the state where the light is detected, that is, the light is emitted. Measure the time of interruption. As a result, the contact time measuring unit 22 measures the time during which the pen 2500 is in contact. The contact time measuring unit 22 is realized by a CPU 201, a touch sensor 216, or the like.

The drawing data generation unit 23 acquires the coordinates of the pen tip of the pen 2500 from the contact position detection unit 21 a plurality of times at short time intervals, and the images connected by interpolating the acquired plurality of coordinates. Shows and generates drawing data. That is, the drawing data generation unit 23 generates drawing data indicating an image based on the handwritten data. The drawing data generation unit 23 is realized by the CPU 201.

The contact area determination unit 24 determines whether or not the contact position of the input means is within the area of the image based on the handwritten data displayed on the display 220. The area of the image based on the handwritten data is the area inside the shape such as a rectangle to which the image based on the handwritten data circumscribes. The shape circumscribed by the image may be a shape other than a rectangle, and may be, for example, an ellipse, a polygon, or the like. The contact area determination unit 24 is realized by the CPU 201, the touch sensor 216, and the like.

The input time interval determination unit 25 is a case where the contact area determination unit 24 determines that the contact area determination unit 24 is within the area of the image based on the handwritten data (second handwritten data), and the time measured by the contact time measurement unit 22 ( When the contact time Ta) exceeds the time indicating the long press reference (long press reference time T1), the handwritten data (first handwritten data) input before the second handwritten data is input. Therefore, it is determined whether or not the time until the second handwritten data is input (input time interval Tb) exceeds the predetermined time (determination reference time T2). The input time interval determination unit 25 is realized by the CPU 201.

The display control unit 26 displays an image based on handwritten data, an operation menu for the user to operate, and the like on the display 220. Then, the display control unit 26 changes the display mode of the image (second image) based on the second handwritten data in which the input time interval Tb is determined by the input time interval determination unit 25 to exceed the determination reference time T2. The display control unit 26 is realized by the CPU 201, the display controller 213, and the like.

The contact time measurement unit 22, the drawing data generation unit 23, the contact area determination unit 24, the input time interval determination unit 25, the display control unit 26, and the like cooperate with each other to create an image based on the second handwritten data displayed on the display unit. It functions as a control means for changing the display mode of (second image).

The data recording unit 27 records the handwritten data handwritten on the display device 2, the converted character string, the calibration history (image data described later), the screen of the PC, the file, and the like in the storage unit 30. The data recording unit 27 is realized by the CPU 201.

The network communication unit 28 connects to a network such as a LAN (Local Area Network) and transmits / receives data to / from other devices via the network. The network communication unit 28 is realized by the wireless communication device 222.

The operation reception unit 29 receives an operation by an input means such as a pen 2500 for an operation button or the like displayed on the display 220.

The storage unit 30 is built in SSD 204, RAM 203, or the like, and stores the above-mentioned information recorded by the data recording unit 27. Specifically, the storage unit 30 stores the determination reference information 90 and the display mode setting information 91.

The determination reference information 90 is information that serves as a reference for determination by the input time interval determination unit 25. Specifically, the determination reference information 90 includes information indicating a long press reference time T1, a determination reference time T2, and the like.

The display mode setting information 91 is information indicating the setting of the display mode after the change of the second image. The display mode is a display mode such as a color and a line thickness. When the second handwritten data is recognized as data indicating characters, the display mode of the second image may be in the format of characters such as font, italics, and bold characters. The display mode setting information 91 may be changeable by a user operation. Further, in the display mode setting information 91, both the display mode before and after the change may be set, such as black for the color before the change and red for the color after the change, and the color before the change may be set. When the color is black, the color after the change is red, and when the color before the change is gray, the color after the change is black. The display mode after the change may be set for each display mode before the change. ..

Next, the operation of the display device according to this embodiment will be described.

FIG. 5 is a diagram showing an example of a flow of the display mode change process according to the first embodiment.

The display device 2 receives an operation of the pen 2500 or the like from the user and accepts input of handwritten data (first handwritten data) (step S101). Specifically, the contact position detection unit 21 detects the contact position of the pen 2500 or the like.

Next, the display device 2 displays an image (first image) based on the first handwritten data (step S102). Specifically, the drawing data generation unit 23 generates drawing data (first handwritten data) along the contact position detected in step S101. Then, the display control unit 26 causes the display 220 to display the first image.

Subsequently, the input time interval determination unit 25 starts a timer in order to acquire the input time interval Tb used for the determination (step S103).

Subsequently, the display device 2 receives an operation of the pen 2500 or the like from the user and accepts the input of the handwritten data (second handwritten data) (step S104). Specifically, the contact position detection unit 21 detects the contact position of the pen 2500 or the like.

Then, the input time interval determination unit 25 stops the timer and saves the input time interval Tb in the RAM 203 (step S105). The input time interval Tb is calculated by the elapsed time from the start of the timer to the stop of the timer.

Next, the display device 2 displays an image (second image) based on the second handwritten data (step S106). Specifically, the drawing data generation unit 23 generates drawing data (second handwritten data) along the contact position detected in step S103. Then, the display control unit 26 causes the display 220 to display the second image.

Next, the display device 2 detects contact with the second image by the pen 2500 or the like (step S107). Specifically, when the contact position detection unit 21 detects the contacted position of the pen 2500 or the like on the display 220, and the contact area determination unit 24 determines that the contacted position is within the region of the second image. It is assumed that the display device 2 has detected contact with the second image by the pen 2500 or the like.

Next, the contact time measuring unit 22 of the display device 2 measures the contact time Ta with the second image by the pen 2500 or the like (step S108). Then, the display device 2 determines whether or not the contact time Ta exceeds the long press reference time T1 (step S109).

When the display device 2 determines that the contact time Ta does not exceed the long press reference time T1 (step S109: No), the display device 2 returns to the process of step S106 and continues the measurement of the contact time Ta. Then, when the display device 2 determines that the contact time Ta exceeds the long press reference time T1 (step S109: Yes), the input time interval determination unit 25 determines whether the input time interval Tb exceeds the determination reference time T2. It is determined whether or not (step S110).

When the input time interval determination unit 25 determines that the input time interval Tb exceeds the determination reference time T2 (step S110: Yes), the display control unit 26 changes the display mode of the second image (step S111). In this case, since the first handwritten data and the second handwritten data are input at intervals of time, they can be distinguished. The display mode after the change is determined based on the display mode setting information 91.

Further, when the input time interval determination unit 25 determines that the input time interval Tb does not exceed the determination reference time T2 (step S110: No), the display control unit 26 displays the first image and the second image. Change (step S112). In this case, since the first handwritten data and the second handwritten data are input at short time intervals, they cannot be distinguished.

FIG. 6 is a diagram for explaining the result of the display mode change process according to the first embodiment.

At the start of the display mode change process, as shown in FIG. 6A, an image based on handwritten data is included in the screen 300 displayed on the display 220 as an example. Then, when steps S101 and S102 of the display mode change process are executed, the first image 301 based on the first handwritten data is displayed on the screen 300 as shown in FIG. 6B.

Subsequently, when steps S103 to S106 of the display mode change process are executed, the second image 302 based on the second handwritten data is displayed on the screen 300 as shown in FIG. 6 (c).

Then, as shown in FIG. 6D, in step S107 of the display mode change process, the contact area determination unit 24 determines that the contact position 303 of the pen 2500 or the like is within the area of the second image 302, and displays the contact area. In steps S108 and S109 of the mode change process, it is determined that the contact time Ta measured by the contact time measuring unit 22 exceeds the long press reference time T1.

Then, in step S110 of the display mode change process, when the input time interval determination unit 25 determines that the input time interval Tb of the first handwritten data and the second handwritten data exceeds the determination reference time T2, the display mode change process is performed. In step S111, the display control unit 26 changes the display mode of the second image 302 as shown in FIG. 6 (e).

According to the display device 2 according to the present embodiment, the first handwritten data and the second handwritten data are discriminated based on the input time of the first handwritten data and the second handwritten data, and the second image 302 is The display mode can be changed.

Thereby, for example, as shown in FIG. 6 (e), even when the displayed positions overlap or are very close to each other, only the display mode of the second image 302 is changed. Can be done.

The condition that the time from the input of the first handwritten data to the input of the second handwritten data is longer than a predetermined time or exceeds the predetermined time is a predetermined condition for distinguishing a plurality of handwritten data. This is an example of the condition.

In the present embodiment, an example is shown in which an operation of long-pressing the area of the second image 302 with a pen 2500 or the like is specified as a predetermined operation for the second handwritten data. However, the scope of the present invention is not limited to this, and it does not have to be a long press as long as it is a predetermined operation. For example, the operation may be a double tap, a triple tap, or the like.

In the present embodiment, the determination as to whether or not the contact time Ta exceeds the long press reference time T1 may be determined as to whether or not the contact time Ta is equal to or longer than the long press reference time T1. Similarly, the determination as to whether or not the input time interval Tb exceeds the determination reference time T2 may be the determination as to whether or not the input time interval Tb is equal to or greater than the determination reference time T2.

(Second embodiment)
The second embodiment will be described below with reference to the drawings. The second embodiment is different from the first embodiment in that it is determined whether or not the input positions of the first handwritten data and the second handwritten data have a predetermined positional relationship. Therefore, in the following description of the second embodiment, only the differences from the first embodiment will be described, and the description of the first embodiment will be described for those having the same functional configuration as the first embodiment. The same reference numerals as those used in the above are given, and the description thereof will be omitted.

FIG. 7 is a diagram showing an example of the function of the display device according to the second embodiment.

The display device 2 according to the present embodiment further includes a positional relationship determination unit 31 instead of the input time interval determination unit 25 according to the first embodiment.

The positional relationship determination unit 31 determines whether or not the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship. Specifically, the positional relationship determination unit 31 identifies the position where each handwritten data is input based on the coordinates included in the handwritten data. For example, the positional relationship determination unit 31 calculates the average value of all the X coordinates included in the handwritten data and the average value of the Y coordinate, and uses the calculated average value of the X coordinate and the average value of the Y coordinate. The indicated position is the position where the handwritten data is input. In the following description, the upward direction of the display 220 is the positive direction of the Y axis, and the right direction is the positive direction of the X axis.

Further, in the determination standard information 90 according to the present embodiment, the positional relationship determination unit 31 determines whether or not the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship. Is the information that serves as a reference for determining.

The determination reference information 90 is, for example, information indicating a positional relationship in which the position where the second handwritten data is input is below the position where the first handwritten data is input. Specifically, the determination reference information 90 may be information indicating a positional relationship in which the average value of the Y coordinates included in the second handwritten data is smaller than the average value of the Y coordinates included in the first handwritten data. good.

Next, the operation of the display device 2 according to the present embodiment will be described.

FIG. 8 is a diagram showing an example of a flow of the display mode change process according to the second embodiment.

From step S201 to step S207 of the display mode change process according to the present embodiment are the same as steps S101-S102, step S104 and step S106-step S109 of the display mode change process according to the first embodiment. Following the process of step S207, the positional relationship determination unit 31 determines whether or not the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship (step). S208).

Then, when the positional relationship determination unit 31 determines that the positional relationship is predetermined (step S208: Yes), the display control unit 26 changes the display mode of the second image (step S209).

Further, when the positional relationship determination unit 31 determines that the positional relationship is not predetermined (step S208: No), the display control unit 26 changes the display mode of the first image and the second image (step S210).

FIG. 9 is a diagram for explaining the result of the display mode change process according to the second embodiment.

At the start of the display mode change process, as shown in FIG. 9A, an image based on handwritten data is included in the screen 300 displayed on the display 220 as an example. Then, when steps S201 and S202 of the display mode change process are executed, the first image 301 based on the first handwritten data is displayed on the screen 300 as shown in FIG. 9B.

Subsequently, when steps S203 and S204 of the display mode change process are executed, the second image 302 based on the second handwritten data is displayed on the screen 300. Then, in step S105 of the display mode change process, the contact area determination unit 24 determines that the contact position 303 of the pen 2500 or the like is within the region of the second image 302, and in steps S206 and S207 of the display mode change process. It is determined that the contact time Ta measured by the contact time measuring unit 22 exceeds the long press reference time T1.

Then, in step S208 of the display mode change process, when the positional relationship determination unit 31 determines that the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship, the display is displayed. In step S209 of the mode change process, the display control unit 26 changes the display mode of the second image 302 as shown in FIG. 9 (c).

According to the display device 2 according to the present embodiment, the first handwritten data and the second handwritten data are stored based on the positional relationship between the position where the first handwritten data is input and the position where the second handwritten data is input. The display mode of the second image 302 can be changed by discriminating. Thereby, for example, even when the input times of the first handwritten data and the second handwritten data are close to each other, only the display mode of the second image 302 can be changed depending on the positional relationship.

Further, when the determination standard information 90 defines a positional relationship in which the position where the second handwritten data is input is below the position where the first handwritten data is input, for example, FIG. 9 (c) shows. As shown, when handwritten data indicating a horizontally written character string is input, the display mode can be changed for each character string.

The positional relationship in which the position where the second handwritten data is input is below the position where the first handwritten data is input may be a relationship other than the above-mentioned specific example. For example, the determination reference information 90 may be information indicating a positional relationship in which all Y coordinates of the stroke data included in the second handwritten data are smaller than any Y coordinate of the stroke data included in the first handwritten data. good.

The condition that the position where the first handwritten data is input and the position where the second handwritten data is input has a predetermined positional relationship is an example of a predetermined condition for distinguishing a plurality of handwritten data.

Further, the predetermined positional relationship may be other than that. For example, the predetermined positional relationship may be such that the position where the second handwritten data is input is to the left of the position where the first handwritten data is input. By doing so, when handwritten data indicating a vertically written character string is input, the display mode can be changed for each character string.

Further, in the predetermined positional relationship, the distance dt between the coordinate point indicating the input position of the first handwritten data and the coordinate point indicating the input position of the second handwritten data exceeds the predetermined length. It may be a positional relationship of being.

Specifically, the distance dt is the minimum distance between all the coordinate points of the stroke data included in the second handwritten data and all the coordinate points of the stroke data included in the first handwritten data. Is.

In this case, the coordinate point indicating the input position of the first handwritten data is the coordinate point closest to all the coordinate points of the second handwritten data among all the coordinate points of the stroke data included in the first handwritten data. be.

Similarly, the coordinate point indicating the input position of the second handwritten data is the coordinate point closest to all the coordinate points of the first handwritten data among all the coordinate points of the stroke data included in the second handwritten data. be.

FIG. 10 is a diagram for explaining the result of the display mode changing process according to the modified example of the second embodiment.

At the start of the display mode change process, as shown in FIG. 10A, an image based on handwritten data is included in the screen 300 displayed on the display 220 as an example. Then, when step S201 and step S202 of the display mode change process are executed, the first image 301 based on the first handwritten data is displayed on the screen 300.

Subsequently, when steps S203 and S204 of the display mode change process are executed, the second image 302 based on the second handwritten data is displayed on the screen 300 as shown in FIG. 10 (b). Then, in step S205 of the display mode change process, the contact area determination unit 24 determines that the contact position 303 of the pen 2500 or the like is within the region of the second image 302, and in steps S206 and S207 of the display mode change process. It is determined that the contact time Ta measured by the contact time measuring unit 22 exceeds the long press reference time T1.

Then, in step S208 of the display mode change process, when the positional relationship determination unit 31 determines that the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship, the display mode is displayed. In step S209 of the change process, the display control unit 26 changes the display mode of the second image 302 as shown in FIG. 10 (c).

According to the display device 2 according to the present modification, the distance dt between the coordinate point indicating the position where the first handwritten data is input and the coordinate point indicating the position where the second handwritten data is input is a predetermined length. The display mode of the second image 302 can be changed by discriminating between the first handwritten data and the second handwritten data based on whether or not the above is exceeded.

Thereby, for example, as shown in FIG. 10C, it is possible to discriminate a plurality of handwritten data input at distant positions and change the display mode of the second image 302.

The distance dt may be a distance between a coordinate point indicating the average value of the coordinates of the stroke data included in the second handwritten data and a coordinate point indicating the average value of the coordinates of the stroke data included in the first handwritten data. ..

In the present embodiment, the determination as to whether or not the distance dt exceeds the predetermined length may be determined as to whether or not the distance dt is equal to or greater than the predetermined length.

In the present embodiment, the positional relationship determination unit 31 determines the input position of the first handwritten data and the input position of the second handwritten data based on the coordinates included in the stroke data. Not limited. Even if the position where the first handwritten data is input and the position where the second handwritten data is input are determined based on the position where the first image is drawn and the position where the second image is drawn on the display. good. Since the first image and the second image are already displayed at the timing processed by the positional relationship determination unit 31, the data indicating the drawn position is stored in the RAM 203 or the like.

(Third embodiment)
The third embodiment will be described below with reference to the drawings. The third embodiment is different from the second embodiment in that it further determines whether or not a predetermined condition is satisfied based on the input order of the first handwritten data, the second handwritten data, and other handwritten data. .. Therefore, in the following description of the third embodiment, only the differences from the second embodiment will be described, and for those having the same functional configuration as the second embodiment, the second embodiment will be described. The same reference numerals as those used in the above are given, and the description thereof will be omitted.

FIG. 11 is a diagram showing an example of the function of the display device according to the third embodiment.

The display device 2 according to the present embodiment further includes an input order determination unit 32.

The input order determination unit 32 determines whether or not other handwritten data (third handwritten data) has been input after the input of the first handwritten data and before the input of the second handwritten data.

Further, in the determination standard information 90 according to the present embodiment, the input order determination unit 32 determines whether or not the third handwritten data has been input after the input of the first handwritten data and before the input of the second handwritten data. This is information that serves as a reference for judgment.

Next, the operation of the display device 2 according to the present embodiment will be described.

FIG. 12 is a diagram showing an example of a flow of the display mode change process according to the third embodiment.

Steps S301 and S302 of the display mode change process according to the present embodiment are the same as steps S201 and S202 of the display mode change process according to the second embodiment. Following the process of step S302, the display device 2 determines whether or not the third handwritten data has been input (step S303).

When the display device 2 determines that the third handwritten data has been input (step S303: Yes), the display device 2 accepts the input of the third handwritten data (step S304). Then, the display device 2 displays an image (third image) based on the third handwritten data (step S305).

Further, when the display device 2 determines that the third handwritten data has not been input (step S303: No), the display device 2 skips the processes of steps S304 and S305.

Subsequent processes from step S306 to step S309 are the same as steps S203 to S207 of the display mode change process according to the second embodiment.

Following the process of step S309, the input order determination unit 32 determines whether or not the third handwritten data has been input after the input of the first handwritten data and before the input of the second handwritten data (step). S311).

Then, when the input order determination unit 32 determines that the third handwritten data has been input (step S311: Yes), the positional relationship determination unit 31 inputs the position where the third handwritten data is input and the second handwritten data. It is determined whether or not the position has a predetermined positional relationship (step S312).

Then, when the positional relationship determination unit 31 determines that the positional relationship is predetermined (step S312: Yes), the display control unit 26 changes the display mode of the second image (step S315).

Further, when the positional relationship determination unit 31 determines that the positional relationship is not predetermined (step S312: No), the display mode of the second image and the third image is changed (step S314).

Further, when the input order determination unit 32 determines that the third handwritten data has not been input (step S311: No), the positional relationship determination unit 31 has the position where the first handwritten data is input and the second handwritten data. It is determined whether or not the input position has a predetermined positional relationship (step S313).

Then, when the positional relationship determination unit 31 determines that the positional relationship is predetermined (step S313: Yes), the display control unit 26 changes the display mode of the second image (step S315).

Further, when the positional relationship determination unit 31 determines that the positional relationship is not predetermined (step S313: No), the display control unit 26 changes the display mode of the first image and the second image (step S316).

FIG. 13 is a diagram for explaining the result of the display mode change process according to the third embodiment.

At the start of the display mode change process, as shown in FIG. 13A, the screen 300 displayed on the display 220 includes an image based on handwritten data. Then, when step S301 and step S302 of the display mode change process are executed, the first image 301 based on the first handwritten data is displayed on the screen 300.

Subsequently, when steps S303 to S305 of the display mode change process are executed, the third image 304 based on the third handwritten data is displayed on the screen 300, and steps S306 and S307 of the display mode change process are executed. Then, the second image 302 based on the second handwritten data is displayed on the screen 300.

Then, in step S308 of the display mode change process, as shown in FIG. 13B, the contact area determination unit 24 determines that the contact position 303 of the pen 2500 or the like is within the area of the second image 302, and displays the contact area. In step S309 and step S310 of the mode change process, it is determined that the contact time Ta measured by the contact time measuring unit 22 exceeds the long press reference time T1.

Then, in step S311 of the display mode change process, the input order determination unit 32 determines that the third handwritten data has been input after the input of the first handwritten data and before the input of the second handwritten data.

Subsequently, in step S312 of the display mode change process, the positional relationship determination unit 31 determines that the position where the third handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship. For example, it is determined that the distance dt between the coordinate point indicating the position where the third handwritten data is input and the coordinate point indicating the position where the second handwritten data is input exceeds a predetermined length.

Then, in step S315 of the display mode change process, the display control unit 26 changes the display mode of the second image 302 as shown in FIG. 13 (c).

According to the display device 2 according to the present embodiment, the first handwritten data and the second handwritten data are discriminated based on the input order of the first handwritten data, the second handwritten data, and the third handwritten data. The display mode of the second image 302 can be changed.

Thereby, for example, even if the input times of the first handwritten data and the second handwritten data are close to each other, or even if the input positions of the first handwritten data and the second handwritten data are close to each other, the input order is reached. Depending on the situation, only the display mode of the second image 302 can be changed.

The condition that the third handwritten data is input after the input of the first handwritten data and before the input of the second handwritten data is an example of a predetermined condition for distinguishing a plurality of handwritten data.

In the present embodiment, the first handwritten data and the second handwritten data are distinguished by the determination of the input order determination unit 32, and the second handwritten data and the third handwritten data are distinguished by the determination of the positional relationship determination unit 31. Although an example is shown, other conditions for distinguishing the second handwritten data and the third handwritten data may be used.

For example, even if the display device 2 includes an input time interval determination unit 25 and the input time interval determination unit 25 determines based on the time from the input of the third handwritten data to the input of the second handwritten data. good.

(Fourth Embodiment)
A fourth embodiment will be described below with reference to the drawings. The fourth embodiment is different from the first embodiment in that it is determined whether or not the device that has received the input of the first handwritten data and the device that has received the input of the second handwritten data are different. Therefore, in the following description of the fourth embodiment, only the differences from the first embodiment will be described, and the description of the first embodiment will be described for those having the same functional configuration as the first embodiment. The same reference numerals as those used in the above are given, and the description thereof will be omitted.

FIG. 14 is a diagram showing an example of the overall configuration of the display system according to the fourth embodiment.

The display system 1 includes a display device 2a and a display device 2b. When the display device 2a and the display device 2b are not distinguished, they are collectively referred to as the display device 2.

The display devices 2 are connected to each other so as to be able to communicate with each other via the communication network 3. The display device 2 is used for a remote conference or the like, communicates input handwritten data or the like with each other, and displays the same screen.

FIG. 15 is a diagram showing an example of the function of the display device according to the fourth embodiment.

The network communication unit 28 according to the present embodiment transmits handwritten data input to the own unit to another display device 2 via the communication network 3. Further, the network communication unit 28 receives the handwritten data input to the other display device 2. The received handwritten data includes attribute information indicating the device that received the input.

Further, the display device 2 according to the present embodiment further includes an input device determination unit 33 instead of the input time interval determination unit 25 according to the first embodiment.

The input device determination unit 33 determines whether the device that has received the input of the first handwritten data and the device that has received the input of the second handwritten data are different.

Further, in the determination standard information 90 according to the present embodiment, the input device determination unit 33 determines whether or not the device that has received the input of the first handwritten data and the device that has accepted the input of the second handwritten data are different. This is the standard information for.

Next, the operation of the display device 2 according to the present embodiment will be described.

FIG. 16 is a diagram showing an example of the flow of the display mode change process according to the fourth embodiment.

From step S401 to step S407 of the display mode change process according to the present embodiment are the same as steps S101-S102, step S104 and step S106-step S109 of the display mode change process according to the first embodiment. Following the process of step S407, the input device determination unit 33 determines whether or not the device that has received the input of the first handwritten data and the device that has received the input of the second handwritten data are different (step S408).

Then, when the input device determination unit 33 determines that the devices that have received the input are different (step S408: Yes), the display control unit 26 changes the display mode of the second image (step S409).

Further, when the input device determination unit 33 determines that the devices that have received the input are the same (step S408: No), the display control unit 26 changes the display mode of the first image and the second image (step S410). ).

At the start of the display mode change process, as shown in FIG. 6A, an image based on handwritten data is included in the screen 300 displayed on the display 220 as an example. Then, when steps S401 and S402 of the display mode change process are executed, the first image 301 based on the first handwritten data is displayed on the screen 300 as shown in FIG. 6B. The first handwritten data is, for example, handwritten data for which the display device 2a has received an input.

Subsequently, when steps S403 and S404 of the display mode change process are executed, the second image 302 based on the second handwritten data is displayed on the screen 300 as shown in FIG. 6C. The second handwritten data is, for example, handwritten data for which the display device 2b has received an input.

Then, in step S405 of the display mode change process, as shown in FIG. 6D, the contact area determination unit 24 determines that the contact position 303 of the pen 2500 or the like is within the area of the second image 302, and displays the contact area. In step S406 and step S407 of the mode change process, it is determined that the contact time Ta measured by the contact time measuring unit 22 exceeds the long press reference time T1.

Then, in step S408 of the display mode change process, when the input device determination unit 33 determines that the device that has received the input of the first handwritten data and the device that has received the input of the second handwritten data are different, the display mode change process is performed. In step S409, the display control unit 26 changes the display mode of the second image 302 as shown in FIG. 6 (e).

According to the display device 2 according to the present embodiment, the first handwritten data and the second handwritten data are discriminated based on the device that accepts the input of the first handwritten data and the second handwritten data, and the second image 302 is used. The display mode of can be changed.

As a result, for example, even if the input times of the first handwritten data and the second handwritten data are close to each other, or even if the input positions are close to each other, the display of the second image 302 may be displayed depending on the device that has received the input. Only aspects can be changed.

The condition that the device that accepts the input of the first handwritten data and the device that accepts the input of the second handwritten data are different is an example of a predetermined condition for distinguishing a plurality of handwritten data.

Hereinafter, other configuration examples of the display device 2 will be described.

In each of the above-described embodiments, the display device 2 is described as having a large touch panel, but the display device 2 is not limited to the one having the touch panel.

FIG. 17 is a first diagram showing another configuration example of the display device.

In FIG. 17, the projector 411 is installed on the upper side of the normal whiteboard 413. This projector 411 corresponds to the display device 2. The normal whiteboard 413 is not a flat panel display integrated with a touch panel, but a whiteboard that the user directly handwrites with a marker. The whiteboard may be a blackboard, and may be a flat surface large enough to project an image.

The projector 411 has an ultra-short focus optical system, and can project an image with little distortion from about 10 cm onto the whiteboard 413. This image may be transmitted from the PC400-1 connected wirelessly or by wire, or may be stored by the projector 411.

The user writes on the whiteboard 413 using the dedicated electronic pen 2501. The electronic pen 2501 has, for example, a light emitting portion at its tip, which turns on when the user presses it against the whiteboard 413 for handwriting and emits light. Since the wavelength of light is near infrared or infrared, it is invisible to the user's eyes. The projector 411 has a camera, captures a light emitting unit, analyzes the image, and identifies the direction of the electronic pen 2501. Further, the electronic pen 2501 emits a sound wave together with light emission, and the projector 411 calculates the distance from the arrival time of the sound wave. The position of the electronic pen 2501 can be specified by the direction and the distance. Handwritten data is drawn (projected) at the position of the electronic pen 2501.

Since the projector 411 projects the menu 430, when the user presses a button with the electronic pen 2501, the projector 411 identifies the position of the electronic pen 2501 and the button pressed by the ON signal of the switch. For example, when the save button 431 is pressed, the handwritten data (coordinate point sequence) handwritten by the user is saved in the projector 411. The projector 411 stores handwritten information in a predetermined server 412, a USB memory 2600, or the like. Handwritten information is stored page by page. Since the coordinates are saved instead of the image data, the user can edit them again. However, in the present embodiment, since the operation command can be called by hand, the menu 430 does not have to be displayed.

FIG. 18 is a second diagram showing another configuration example of the display device.

The display device 2 includes a terminal device 600, an image projection device 700A, and a pen motion detection device 810.

The terminal device 600 is connected to the image projection device 700A and the pen motion detection device 810 by wire. The image projection device 700A projects the image data input by the terminal device 600 onto the screen 800.

The pen motion detection device 810 communicates with the electronic pen 820 and detects the motion of the electronic pen 820 in the vicinity of the screen 800. Specifically, the electronic pen 820 detects the coordinate information indicating the point indicated by the electronic pen 820 on the screen 800 (the detection method may be the same as in FIG. 17), and transmits the coordinate information to the terminal device 600.

The terminal device 600 generates image data of handwritten data input by the electronic pen 820 based on the coordinate information received from the pen motion detection device 810, and causes the image projection device 700A to draw an image of the handwritten data on the screen 800.

Further, the terminal device 600 generates superimposed image data showing a superimposed image in which a background image projected on the image projection device 700A and an image of handwritten data input by the electronic pen 820 are combined.

FIG. 19 is a third diagram showing another configuration example of the display device.

In the example of FIG. 19, the display device 2 includes a terminal device 600, a display 800A, and a pen operation detection device 810.

The pen motion detection device 810 is arranged in the vicinity of the display 800A, detects coordinate information indicating a point indicated by the electronic pen 820A on the display 800A (the detection method may be the same as in FIG. 26), and the terminal device 600. Send to. In the example of FIG. 28, the electronic pen 820A may be charged by the terminal device 600 via the USB connector.

The terminal device 600 generates image data indicating an image of handwritten data input by the electronic pen 820A based on the coordinate information received from the pen motion detection device 810, and displays the image data on the display 800A.

FIG. 20 is a fourth diagram showing another configuration example of the display device.

In the example of FIG. 20, the display device 2 has a terminal device 600 and an image projection device 700A.

The terminal device 600 performs wireless communication (Bluetooth (registered trademark), etc.) with the electronic pen 820B, and receives the coordinate information of the point indicated by the electronic pen 820B on the screen 800. As for the coordinate information, the electronic pen 820B may read the minute position information formed on the screen 800, or the coordinate information may be received from the screen 800.

Then, the terminal device 600 generates image data of the handwritten data image input by the electronic pen 820B based on the received coordinate information, and causes the image projection device 700A to project the image of the handwritten data.

Further, the terminal device 600 generates superimposed image data showing a superimposed image in which a background image projected on the image projection device 700A and an image of handwritten data input by the electronic pen 820 are combined.

As described above, each of the above-described embodiments can be applied to various system configurations.

Although the best mode for carrying out the present invention has been described above with reference to examples, the present invention is not limited to these examples, and various modifications are made without departing from the gist of the present invention. And substitutions can be made.

The character string is stored in the display device 2 as a character code, and the handwritten data is stored as coordinate point data. Further, it can be saved in various storage media or stored in a storage device on the network, and can be later downloaded from the display device 2 and reused. The display device 2 to be reused may be any display device or a general information processing device. Therefore, the user can reproduce the handwritten content on a different display device 2 and continue the conference or the like.

Further, in the present embodiment, the coordinates of the pen are detected by the method of detecting the coordinates of the pen tip with the touch panel, but the coordinates of the pen tip may be detected by ultrasonic waves. Further, the pen emits ultrasonic waves together with light emission, and the display device 2 calculates the distance from the arrival time of the ultrasonic waves. The position of the pen can be specified by the direction and distance. The projector draws (projects) the trajectory of the pen as stroke data.

Further, the configuration examples shown in FIG. 4 and the like are divided according to the main functions in order to facilitate understanding of the processing by the display device 2. The present invention is not limited by the method of dividing the processing unit or the name. The processing of the display device 2 can be further divided into more processing units according to the processing content. Further, one processing unit can be divided so as to include more processing.

Further, a server connected to the display device 2 via a network may perform a part of the processing performed by the display device 2.

Further, in the present embodiment, even if the threshold value is exemplified as the object of comparison, the threshold value is not limited to the exemplified value. Therefore, in the present embodiment, the description below the threshold value and the description below the threshold value have the same meaning for all the threshold values, and the description above the threshold value and the description above the threshold value have the same meaning. For example, the description that the threshold value is less than the threshold value when the threshold value is 11, has the same meaning as the threshold value or less when the threshold value is 10. Further, the description that the threshold value is exceeded when the threshold value is 10, has the same meaning as the threshold value or more when the threshold value is 11.

Each function of the embodiment described above can be realized by one or more processing circuits. Here, the "processing circuit" as used herein is a processor programmed to perform each function by software, such as a processor implemented by an electronic circuit, or a processor designed to execute each function described above. It shall include devices such as ASIC (Application Specific Integrated Circuit), DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array) and conventional circuit modules.

Each function of the embodiment described above can be realized by an application program that operates on an OS (Operating system) that defines the operation of the CPU 201 included in the display device 2.

The device to which this embodiment is applied may be any display device having a function of operating an object by a touch operation, and is not limited to an electronic blackboard. The display device to which this embodiment is applied is, for example, a PJ (Projector: projector), an output device such as a digital signage, a HUD (Head Up Display) device, a network home appliance, a car (Connected Car), and a notebook PC (Personal Computer). , Mobile phones, smartphones, tablet terminals, game machines, PDAs (Personal Digital Assistants), wearable PCs, and the like.

Although the present invention has been described above based on each embodiment, the present invention is not limited to the requirements shown in the above embodiments. With respect to these points, the gist of the present invention can be changed to the extent that the gist of the present invention is not impaired, and can be appropriately determined according to the application form thereof.

1 Display system 2 Display device 21 Contact position detection unit 22 Contact time measurement unit 23 Drawing data generation unit 24 Contact area determination unit 25 Input time interval determination unit 26 Display control unit 27 Data recording unit 28 Network communication unit 29 Operation reception unit 30 Storage Unit 31 Positional relationship determination unit 32 Input order determination unit 33 Input device determination unit

Japanese Unexamined Patent Publication No. 2019-105988

Claims (12)

A reception means that accepts input of handwritten data by input means,
When a predetermined operation for the second handwritten data received after the input of the first handwritten data received by the receiving means is received, the display mode of the image based on the second handwritten data displayed on the display unit is displayed. With control means to change,
Display device. In the predetermined operation for the second handwritten data, the time for the input means to contact the area of the image based on the second handwritten data is longer than or equal to the time indicating the reference for long press, or the long press. It is an operation that exceeds the time indicating the standard of
The display device according to claim 1. When the control means receives the predetermined operation on the second handwritten data, the first handwritten data and the second handwritten data satisfy a predetermined condition for distinguishing a plurality of handwritten data. , The display mode of the image based on the second handwritten data displayed on the display unit is changed.
The display device according to claim 1 or 2. The predetermined condition is a condition that the time from the input of the first handwritten data to the input of the second handwritten data is a predetermined time or more, or a condition that the time exceeds the predetermined time. ,
The display device according to claim 3. The predetermined condition is a condition that the position where the first handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship.
The display device according to claim 3. The positional relationship is such that the position where the second handwritten data is input is below the position where the first handwritten data is input.
The display device according to claim 5. In the positional relationship, the distance between the coordinate point indicating the position where the first handwritten data is input and the coordinate point indicating the position where the second handwritten data is input is equal to or longer than a predetermined length. It is a condition that the length exceeds the predetermined length.
The display device according to claim 5. The predetermined condition is that the third handwritten data is input after the input of the first handwritten data and before the input of the second handwritten data.
When the control means receives the predetermined operation, the first handwritten data and the second handwritten data satisfy the predetermined conditions, and after the third handwritten data is input, the second handwritten data is input. When the time until the data is input is equal to or longer than a predetermined time, or the first handwritten data and the second handwritten data satisfy the predetermined condition, and the third handwritten data is satisfied. When the position where the handwritten data is input and the position where the second handwritten data is input have a predetermined positional relationship, the display mode of the image based on the second handwritten data is changed.
The display device according to claim 3. The predetermined condition is that the device that accepts the input of the first handwritten data and the device that accepts the input of the second handwritten data are different.
The display device according to claim 3. When the control means receives the predetermined operation indicating the second handwriting data and the first handwriting data and the second handwriting data do not satisfy the predetermined conditions, the control means is displayed on the display unit. The display mode of the first handwritten data and the second handwritten data is changed.
The display device according to any one of claims 3 to 9. It is a display method executed by the display device.
Steps to accept input of handwritten data by input means,
A step of changing the display mode of an image based on the second handwritten data displayed on the display unit when a predetermined operation for the second handwritten data received after the input of the received first handwritten data is received. , Equipped with
Display method. For computers equipped with display devices
Steps to accept input of handwritten data by input means,
A step of changing the display mode of an image based on the second handwritten data displayed on the display unit when a predetermined operation for the second handwritten data received after the input of the received first handwritten data is received. ,
A program to execute.

Images