JP2020198038A - Information processing apparatus and program - Google Patents

Abstract

To provide an information processing apparatus that can reproduce and display strokes in a mode suitable for a reader.SOLUTION: An information processing apparatus has: acquisition means that acquires stroke information including position information indicating positions of strokes representing handwriting and time information indicating write-in times of the strokes; and display means that reproduces and displays the strokes on the basis of the stroke information in a time sequence based on the time information. The display means displays the strokes based on all the pieces of acquired stroke information, and then reproduces and displays the strokes corresponding to the time information sequentially in different modes.SELECTED DRAWING: Figure 10

Description

The present invention relates to reproduction of strokes representing handwriting.

Conventionally, there has been known a system that reproduces and displays the handwriting of an writer based on the entry information generated by an electronic pen, a tablet, or the like. For example, Patent Document 1 stores stroke information including position information and time information regarding strokes of each student on an answer sheet with an electronic pen, and indicates the contents entered by a designated student based on the stroke information. A terminal device for arranging and reproducing reproduction strokes is disclosed.

Japanese Unexamined Patent Publication No. 2014-044471

When a stroke representing an entry is reproduced and displayed, the viewer may lose sight of the position of the stroke to be reproduced when the position of the stroke to be reproduced and displayed is unpredictable. In addition, if the position of the stroke to be reproduced is followed by eyes so as not to lose sight of it, the burden on the viewer during reproduction increases.

The present invention has been made, for example, to solve the above-mentioned problems, and is mainly provided to provide an information processing device capable of reproducing and displaying strokes in a manner suitable for a viewer. The purpose.

From one aspect of the present invention, the information processing apparatus includes acquisition means for acquiring stroke information including position information indicating the position of a stroke representing a handwriting and time information indicating an entry time of the stroke, and the stroke information. Based on this, the display means includes a display means for reproducing and displaying the strokes in a time series based on the time information, and the display means displays the strokes based on all the acquired stroke information and then displays the strokes on the time information. The corresponding strokes are sequentially reproduced and displayed in different modes. Here, "displaying" includes not only a mode in which the information processing device displays itself, but also a mode in which a display device other than the information processing device executes a predetermined display. In the latter case, for example, the information processing device supplies the display data necessary for the display device to perform a predetermined display to the display device.

When the information processing device reproduces and displays the stroke in a time series based on the time information based on the stroke information including the position information and the time information, the stroke is displayed after displaying the stroke based on all the acquired stroke information. , The strokes corresponding to the time information are sequentially reproduced and displayed in different modes. As a result, the information processing device can make the viewer visually recognize the stroke to be reproduced, so that the viewer can grasp the position of the stroke to be reproduced next in advance. Therefore, the viewer can preferably avoid the trouble of searching the screen without being able to grasp the position of the stroke during playback. Further, the information processing device can preferably prevent the unreproduced stroke from being confused with the regenerated stroke by displaying the non-reproduced stroke in a mode different from that of the regenerated stroke. ..

In one aspect of the information processing apparatus, the display means displays the unreproduced strokes in a color that is less noticeable than the regenerated strokes. Here, "displaying in an inconspicuous color" is not limited to the case where the unplayed stroke is set to a normal color such as black and the played stroke is set to a conspicuous color such as red, and the played stroke and playback are performed. It also includes the case where the strokes that have not been reproduced are the same color and the strokes that have not been reproduced are displayed thinner (due to high transparency) than the strokes that have been reproduced. According to this aspect, the information processing apparatus can give priority to the viewer to visually recognize the regenerated stroke, and can preferably make the viewer grasp the position of the stroke to be reproduced.

In another aspect of the information processing apparatus, the display means displays a stroke based on position information corresponding to time information indicating a time before the reproduction target time of the stroke as the reproduced stroke. A stroke based on position information corresponding to time information indicating a time after the target time of stroke reproduction is displayed as the non-reproduced stroke. According to this aspect, the information processing apparatus can accurately identify the unreproduced stroke and the regenerated stroke and display them in different modes.

In another aspect of the information processing apparatus, when the display means displays a stroke including a non-reproduced portion and a regenerated portion, the non-reproduced portion is displayed as the non-reproduced stroke. Then, the regenerated portion is displayed as the regenerated stroke. According to this aspect, the information processing apparatus can gradually change the display of the stroke being reproduced as a stroke that has been reproduced, and can preferably make the stroke being reproduced visually visible to the viewer.

In another aspect of the information processing apparatus, the display means highlights the last regenerated position of the regenerated strokes while the reproduction is stopped. According to this aspect, the information processing apparatus can preferably make the viewer recognize the last reproduced position when the reproduction is stopped, and can easily follow the stroke reproduced when the reproduction is started. ..

Another aspect of the present invention is a program executed by a computer, which is an acquisition means for acquiring stroke information including position information indicating the position of a stroke representing a handwriting and time information indicating a time of writing the stroke. The computer is made to function as a display means for reproducing and displaying the strokes in a time series based on the time information based on the stroke information, and the display means displays the strokes based on the acquired all stroke information. , The strokes corresponding to the time information are sequentially reproduced and displayed in different modes. The above information processing apparatus can be realized by executing this program on a computer.

The configuration of the education support system according to the embodiment is shown. It is a block diagram which shows the internal structure of a tablet, a management server and a teacher terminal. This is a display example of the answer playback screen. This is a display example of the answer playback screen during playback. This is a first display example of the answer playback screen when the playback pointer is moved based on the user operation in the playback stopped state. This is a second display example of the answer playback screen when the playback pointer is moved based on the user operation in the playback stopped state. This is a third display example of the answer playback screen when the playback pointer is moved based on the user operation in the playback stopped state. An example of displaying the answer reproduction screen immediately before and after the free time zone is reached during the reproduction of the stroke is shown. It is a figure which shows the specific mode which shortens a free time zone. It is a flowchart which showed the procedure of answer reproduction processing. The configuration of the education support system related to the modified example is shown.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[overall structure]
FIG. 1 shows the configuration of the education support system 100 in the present embodiment. The education support system 100 is configured so that the entry device 10 and the connection device 12 provided on the student side (school), the management server 20, and the teacher terminal 30 provided on the teacher side can communicate with each other via the network 5. Is.

On the student side, an entry device 10 used by each student and a connection device 12 are provided. The writing device 10 is a digital pen 10a or a combination of a tablet 10b and a touch pen 10c. That is, when performing a test or an exercise, the student writes the answer on the answer sheet, which is a special paper, using the digital pen 10a, or writes the answer on the tablet 10b with the touch pen 10c. In the following description, the term "entry device 10" includes both the digital pen 10a and the combination of the tablet 10b and the touch pen 10c. In FIG. 1, for convenience, only one digital pen 10a, one tablet 10b, and one touch pen 10c are shown, but in reality, the number of digital pens 10a or tablet 10b and touch pen 10c corresponding to the number of students is shown. used.

The connection device 12 is a communication terminal for transmitting the data received from the entry device 10 to the outside. The connection device 12 is, for example, a PC, a smartphone, a wireless master unit, or the like, and receives the entry data “D1” from the entry device 10. The communication between the entry device 10 and the connection device 12 may be wireless or wired. In the present embodiment, the entry data D1 is answer information representing an answer (including writing of a calculation formula or the like for deriving an answer) input by a student using a digital pen 10a or a combination of a tablet 10b and a touch pen 10c. Yes, for example, it includes position information indicating the time-series position of the handwriting representing the answer and time information indicating the time at each position. The connection device 12 transmits the received entry data D1 to the management server 20 through the network 5. The communication between the connection device 12 and the management server 20 through the network 5 may be wired or wireless.

The management server 20 is connected to the test information database (hereinafter, “database” is referred to as “DB”) 24 and the test result DB 28. The management server 20 receives the entry data D1 of each student from the connection device 12 on the student side, extracts the strokes entered by the students from the entry data D1, and displays the stroke information in the test result DB 28 as stroke information for reproducing the handwriting of the answer. Remember. Communication between the management server 20 and the teacher terminal 30 through the network 5 may be wired or wireless. Further, as will be described later, the management server 20 refers to the test information DB 24 and / and the test result DB 28 to generate the display data “D2” to be transmitted to the teacher terminal 30 and transmit the display data “D2” to the tablet 10b. The generation process of the display data "D3" to be output is performed.

The teacher terminal 30 provided on the teacher side is, for example, a desktop PC, a laptop PC, a tablet PC, or the like. When the teacher terminal 30 is a tablet PC, a communication terminal such as a connection device 12 provided on the student side may be provided on the teacher side. In this case, the connection device 12 may function as a shared communication terminal on the student side and the teacher side. The teacher terminal 30 includes a display unit such as a liquid crystal display. The teacher terminal 30 receives the display data D2 from the management server 20 and displays it on the display unit of the teacher terminal 30. The teacher terminal 30 is connected to a projector or a large display (not shown) provided in the classroom, and the display data is supplied to the above-mentioned projector or the large display so that the students in the class can see the display. It is also possible to do it.

[Device configuration]
FIG. 2A is a block diagram showing the configuration of the tablet 10b. As shown in the figure, the tablet 10b includes a communication unit 13, a storage unit 14, a touch sensor 15, a control unit 16, and a display unit 17. These components are connected to each other by a bus 19.

The communication unit 13 communicates with the management server 20 and the like via the connection device 12. The storage unit 14 is composed of a memory such as a RAM or a ROM. The storage unit 14 stores programs for various processes executed by the control unit 16. The control unit 16 controls the entire tablet 10b by executing those programs. Further, the storage unit 14 functions as a working memory when the control unit 16 executes various processes. For example, the electronic data of the answer acquired by the touch sensor 15 is temporarily stored in the storage unit 14.

The touch sensor 15 is provided on the display unit 17 and detects an input or a touch by the answerer's touch pen 10c. When the touch sensor 15 detects the input or touch, the content input by the answerer is acquired as electronic data. The display unit 17 is a liquid crystal panel or the like provided on the front surface of the tablet 10b, and displays test (including exercises) questions and answer forms.

The control unit 16 is composed of a computer such as a CPU, and controls each component of the tablet 10b. For example, when each student in the class conducts a test using the tablet 10b, the control unit 16 transmits the display data D3 for displaying the test question, the answer form, and the like by the communication unit 13 via the connection device 12. Receives from the management server 20. Further, the control unit 16 transmits the entry data D1 indicating the answer data of each student to the management server 20 via the connection device 12 by the communication unit 13. Further, the control unit 16 also refers to a reproduction screen of the answer to the conducted test (also referred to as an "answer reproduction screen") based on the display data D3 transmitted from the management server 20 via the connection device 12 after the end of the test. ) Is displayed on the display unit 17.

FIG. 2B is a block diagram showing the configuration of the management server 20. The management server 20 includes a communication unit 21, a storage unit 22, and a control unit 23. It should be noted that these components, the test information DB 24, and the test result DB 28 are connected to each other via the bus 29.

The communication unit 21 is a communication unit for communicating with the connection device 12 on the student side and the teacher terminal 30 on the teacher side through the network 5. The storage unit 22 is composed of memories such as RAM and ROM. The storage unit 22 stores programs for various processes executed by the control unit 23.

The control unit 23 is composed of a computer such as a CPU, and controls each component of the management server 20. For example, the control unit 23 extracts the strokes written by the student from the entry data D1 received by the communication unit 21 from the connection device 12 on the student side. Further, the control unit 23 generates the display data D2 supplied to the teacher terminal 30 and the display data D3 supplied to the tablet 10b by referring to the test information DB 24 and the test result DB 28, which will be described later. The control unit 23 is an example of a computer that executes the acquisition means, the display means, and the program in the present invention.

The test information DB 24 stores test information which is information about a test to be performed by a student. The test information includes display data (for example, display data of a question sentence and display data of an answer column) for displaying an unfilled answer of the target test.

The test result DB 28 stores the test result information, which is information on the execution result of the test performed in the past, in association with the identification information of the student who performed the test. The test result DB 28 stores the test result information corresponding to each student who performed the test for each test execution date and time. The test result information includes, for example, information about the test date, the time zone when the test was performed, the identification information of the student who performed the test, and the answer information indicating the answer described by the student (stroke for reproducing the handwriting of the answer). (Including information), including correct / incorrect information for each question.

The stroke information includes, for example, at least the position information of each stroke in the answer guide and the time information in which the stroke is entered. The stroke information representing one stroke includes, for example, one or a plurality of coordinate points and an entry time corresponding to each coordinate point. The stroke information may be information about the erased stroke. In this case, the stroke information includes, for example, information that identifies the erased stroke (for example, position information) and time information that the stroke is erased.

FIG. 2C is a block diagram showing the configuration of the teacher terminal 30. The teacher terminal 30 includes a communication unit 33, a storage unit 34, an input unit 35, a control unit 36, and a display unit 37. It should be noted that these components are connected to each other via the bus 39.

The communication unit 33 communicates with the management server 20 and the like based on the control of the control unit 36, and requests and receives the display data D2. The storage unit 34 is composed of memories such as RAM and ROM. The storage unit 34 stores programs for various processes executed by the control unit 36. The control unit 36 controls the entire teacher terminal 30 by executing those programs. In addition, the storage unit 34 functions as a working memory when the control unit 36 executes various processes. The input unit 35 is an input device for a teacher who is a user of the teacher terminal 30 to specify a screen or the like to be displayed, and corresponds to, for example, a keyboard, a mouse, a touch sensor, a voice input device, or the like.

The control unit 36 is composed of a computer such as a CPU, and controls each component of the teacher terminal 30. For example, the control unit 36 transmits the request signal of the display data D2 to the management server 20 based on the user input by the input unit 35 via the communication unit 33, and receives the display data D2 from the management server 20 as a response. Then, the control unit 36 displays various screens on the display unit 37 based on the received display data D2.

[Display answer playback screen]
Next, the display of the answer reproduction screen on the tablet 10b will be described. As will be described later, the answer reproduction screen mainly has a stroke display function, a reproduction position display function, and a free time shortening function. These functions will be described in order.

(1) Stroke display function First, the stroke display function of the answer playback screen will be described. Generally, the tablet 10b displays the unreproduced strokes in an inconspicuous manner on the answer reproduction screen, and displays the regenerated strokes in a more conspicuous manner than the unreproduced strokes. As a result, the tablet 10b makes the user recognize the position of the stroke to be reproduced in advance, and makes the user easily grasp the position of the stroke being reproduced.

FIG. 3 is a display example of the answer reproduction screen displayed on the tablet 10b based on the display data D3 transmitted by the management server 20. When the tablet 10b detects an input that specifies an answer to be reproduced and displayed, the tablet 10b manages a display request for an answer reproduction screen including identification information of the answerer (student) who is the user of the tablet 10b and the specified answer. Send to 20. In this case, the management server 20 obtains the display information of the corresponding test and the stroke related to the stroke entered in the test from the test information DB 24, the test result DB 28, etc., based on the specified answerer's identification information and the answer's identification information. Extract information etc. Then, the management server 20 generates display data D3 for displaying the answer reproduction screen from the extracted information, and transmits the display data D3 to the tablet 10b.

As shown in FIG. 3, the answer reproduction screen includes an operation area 40 and an answer display area 50.

The operation area 40 mainly includes operation buttons 41 (41A to 41C), a first playback bar 42, a second playback bar 43, a playback pointer 44, a playback time display 45, and a playback speed designation field 46. , The free time reduction check box 47 and the page designation button 48 are displayed.

The operation button 41 includes a play button 41A, a back button 41B, and a pause button 41C. When the play button 41A is selected, the tablet 10b starts playing the stroke entered in the target answer based on the target stroke information extracted from the test result DB 28. The specific display mode of stroke reproduction will be described later. Further, when the back button 41B is selected, the tablet 10b returns the playback pointer 44 to the left end position of the first playback bar 42, so that the time point to be played back (also referred to as “playback target time point” or “playback position”). Call.) Is returned to the time when playback starts. Further, when the pause button 41C is selected, the tablet 10b pauses the reproduction.

The first reproduction bar 42 is a bar-shaped display showing a period to be reproduced (also referred to as a “reproduction target period”), the leftmost position corresponds to the start time of the reproduction target period, and the rightmost position is the reproduction target. Corresponds to the end of the period. The reproduction pointer 44 is an indicator that indicates a reproduction target time point by moving on the first reproduction bar 42. The reproduction pointer 44 can be dragged and dropped on the first reproduction bar 42, whereby the user can move the reproduction target time point to any time point in the reproduction target period. The tablet 10b may set the playback target period to, for example, the time zone in which the target test was performed, and the time indicated by the time information of the stroke information included in the display data D3 transmitted from the management server 20. It may be set based on the earliest time and the latest time of.

The second reproduction bar 43 is set to have the same length as the first reproduction bar 42, and the time zone (also referred to as “entry time zone”) in which the stroke is entered within the reproduction target period and the stroke are entered. It is a display that clearly indicates the unbroken time zone (also called "free time zone"). In the example of FIG. 3, the entry time zone corresponds to the hatched portion, and the free time zone corresponds to the white portion. Note that the tablet 10b may include the free time between strokes within a predetermined time (for example, 1 second) in the entry time zone without considering it as the free time zone. As a result, the tablet 10b can suitably recognize the writing time of the strokes to be written continuously as one writing time zone.

The reproduction time display 45 indicates the length of the reproduction target period and the current reproduction position in the reproduction target period (here, the time length from the reproduction start time to the reproduction target time).

The reproduction speed designation field 46 is a button for designating the reproduction speed during the reproduction of the stroke. In the example of FIG. 3, the playback speed designation field 46 has a pull-down menu format, and it is possible to specify an arbitrary playback speed (here, 5 times speed) from a plurality of options related to the playback speed. ..

The free time reduction check box 47 is an interface for designating whether or not to reduce the free time during playback. When the free time reduction check box 47 is valid, the tablet 10b shortens the free time zone based on a predetermined rule at the time of reproducing the stroke. The method of shortening the free time zone will be described later.

The page designation button 48 is a button for designating the page to be displayed in the answer display area 50 when there are a plurality of pages of the target answer. In the example of FIG. 3, the target answer has the first page and the second page, and the page designation button 48 corresponding to the first page is selected, so that the tablet 10b is the first of the target answers. The page is displayed in the answer display area 50.

In the answer display area 50, a stroke based on the stroke information extracted from the test result DB 28 is drawn on the image of the unfilled answer reproduced based on the test information extracted from the test information DB 24. In the example of FIG. 3, each tablet 10b displays a stroke in the answer column 51 (51A to 51D) based on the position information indicated by the stroke information included in the display data D3.

Here, in the example of FIG. 3, since the reproduction pointer 44 points to the start time of the reproduction target period, all the strokes to be displayed on the answer display area 50 are unreproduced. Even in this case, the tablet 10b displays the unreproduced stroke in a color that is less noticeable than the normal display color of the stroke (also referred to as “provisional display color”). Here, the tablet 10b uses gray as the provisional display color, which is lighter than the color adopted as the stroke display color. As a result, the tablet 10b can preferably make the user grasp the position of the stroke to be reproduced on the answer display area 50, and it becomes easy for the user to visually follow the reproduced portion.

When the stroke information includes stroke color information, the tablet 10b may use a color that is less noticeable than the color indicated by the color information as the provisional display color for the unreproduced stroke. In this case, for example, the tablet 10b adopts a light color similar to the color indicated by the color information included in the stroke information (a color obtained by lowering other indicators indicating transmittance or darkness by a predetermined rate) as a provisional display color. Alternatively, a color predetermined as an inconspicuous color may be adopted as the provisional display color.

FIG. 4 is a display example of the answer reproduction screen during reproduction. In the example of FIG. 4, the tablet 10b reproduces the stroke to be displayed on the answer display area 50 after detecting the pressing of the play button 41A.

Here, the tablet 10b displays the reproduced stroke in a color adopted as a display color of the normal stroke (also referred to as “normal color”). Here, the normal color used for the regenerated stroke is a color (here, dark black) that is more conspicuous than the provisional display color (light gray) used for the unreproduced stroke. In this way, the tablet 10b displays the strokes based on the acquired total stroke information, and then sequentially reproduces the strokes corresponding to the time information in different modes. As a result, the tablet 10b can display the regenerated stroke and the unreproduced stroke in a distinguishable manner, and can preferably display the regenerated stroke in a conspicuous manner.

In the example of FIG. 4, the horizontal bar portion of “+” in the “2X + 1” of the answer column 51B includes the regenerated portion and the unreproduced portion, and the tablet 10b has the horizontal bar portion of “+”. Of the parts, the regenerated part is displayed in the normal color, and the unreproduced part is displayed in the provisional display color. In this way, in the tablet 10b, even if there are a regenerated portion and an unreproduced portion in the same stroke, the time indicated by the time information corresponding to each coordinate point is the portion before the reproduction target time. Is displayed in normal color, and the part after the playback target time is displayed in the provisional display color to be displayed in different colors. As a result, during playback, the tablet 10b can gradually change the display of the stroke being played from the provisional display color to the normal color from the entry start position, so that the viewer can easily grasp the position of the stroke being played. it can.

(2) Reproduction position emphasis function Next, the reproduction position emphasis function on the answer reproduction screen will be described. Generally, the tablet 10b highlights the position of the last regenerated stroke, such as when reproduction is stopped. As a result, the tablet 10b makes the user preferably grasp the position of the stroke to be reproduced at the time of the current reproduction target. In the following, display examples (first to third display examples) related to the reproduction position enhancement function will be described with reference to FIGS. 5 to 7.

FIG. 5 is a first display example of the answer reproduction screen when the reproduction pointer 44 is moved based on the user operation in the reproduction stopped state. In the example of FIG. 5, the tablet 10b detects the drag-and-drop operation of the playback pointer 44 and moves the playback pointer 44 to a designated position.

In this case, the tablet 10b recognizes the playback target time point pointed to by the playback pointer 44 after movement according to the stroke display function described above, and uses the color of the stroke to be reproduced by the recognized playback target time point for the unreproduced stroke. It is displayed in a normal color that stands out more than the provisional display color.

Further, in the first display example shown in FIG. 5, the tablet 10b recognizes the last reproduced portion (also referred to as “latest reproduced portion”) of the reproduced strokes, and centers on the latest reproduced portion. The circle 52 is displayed. Specifically, since the stroke information for one stroke is composed of one or a plurality of coordinate points and a combination of the entry times, the tablet 10b has the coordinate points corresponding to the entry times immediately before the playback target time. Is extracted from the stroke information, and the circle 52 centered on the extracted coordinate points is displayed. In this case, the extracted coordinate points are the latest reproduced parts. The tablet 10b may recognize the stroke including the coordinate point corresponding to the entry time immediately before the time of the reproduction target, and display the circle 52 with the stroke as a reference. In this case, for example, the tablet 10b displays a circle 52 centered on the position of the center of gravity of the coordinate points constituting the recognized stroke.

According to the first display example, the tablet 10b can preferably highlight the latest reproduced portion by the circle 52, and allow the user to preferably recognize the position of the stroke that was the object of reproduction immediately before. As a result, the user can easily grasp the position of the stroke to be reproduced next.

In the first display example, the tablet 10b preferably displays the circle 52 in a color (for example, red) different from the color of the regenerated stroke (that is, dark black) and the unreproduced stroke (light gray). Good. As a result, the tablet 10b can more reliably suppress the misunderstanding that the circle 52 is a part of the stroke.

FIG. 6 is a second display example of the answer reproduction screen when the reproduction pointer 44 is moved based on the user operation in the reproduction stopped state.

In the second display example shown in FIG. 6, the tablet 10b points to the latest reproduction portion by the icon 52B, which is a figure representing a pen, instead of the circle 52 in the first display example. Specifically, in this case, the tablet 10b displays the icon 52B at a position where the latest playback portion becomes the pen tip.

As described above, according to the second display example, the tablet 10b preferably clearly indicates the latest reproduced portion by the icon 52B which is not likely to be confused with the stroke, and informs the user of the position of the stroke which was the object of reproduction immediately before. It can be preferably recognized.

FIG. 7 is a third display example of the answer reproduction screen when the reproduction pointer 44 is moved based on the user operation in the reproduction stopped state.

In the third display example shown in FIG. 7, the tablet 10b recognizes the latest reproduced portion as in the first display example and the second display example, then recognizes the answer column 51B to which the latest reproduced portion belongs, and the answer column 51B. Is highlighted by the edging effect. In this case, the tablet 10b recognizes, for example, the smallest rectangular frame including the latest reproduced portion as the answer column 51B including the latest reproduced portion. In another example, the tablet 10b recognizes the answer column 51B including the latest reproduced portion by receiving the position information indicating the position of each answer column 51 from the management server 20 and comparing it with the position information of the latest reproduced portion. You may.

As described above, according to the third display example, the tablet 10b highlights the answer column 51 including the latest reproduced portion, thereby appropriately suppressing the complication of the display and the stroke to be reproduced. The position can be suitably recognized by the user.

The mode of highlighting the latest reproduced portion is not limited to the first to third display examples. For example, the tablet 10b may enclose the latest reproduced portion by an arbitrary figure (for example, a polygon or a quadrangle) other than the circle 52, or may indicate the latest reproduced portion by an arbitrary icon other than the pen. In another example, the tablet 10b may display, for example, a stroke including the latest regenerated portion or a part thereof in a color different from the color of other regenerated or unreproduced strokes (for example, blue). Also with these examples, the latest reproduced portion can be preferably displayed so that the viewer can identify it.

Next, the end timing of highlighting the latest reproduced portion will be described. In the first example, when the tablet 10b detects the selection of the playback button 41A and starts playback, the tablet 10b ends highlighting of the latest playback portion. As a result, the tablet 10b can suitably suppress the complication of display during reproduction. In the second example, the tablet 10b ends the highlighting of the latest reproduced portion when a predetermined time has elapsed from the highlighting of the latest reproduced portion. This also makes it possible for the tablet 10b to preferably suppress complication of display due to continuous highlighting of the last reproduced portion.

The tablet 10b may highlight the latest reproduced portion even during reproduction. For example, when the tablet 10b detects the drag and drop of the playback pointer 44 during playback and automatically restarts playback based on the position of the playback pointer 44 after movement, the latest playback target time point pointed to by the playback pointer 44. Recognizes the latest playback part corresponding to, and highlights the latest playback part. In this case, since the playback target time point changes according to the designated playback speed, the position of the stroke that is the latest playback portion also changes. In this case, preferably, the tablet 10b may erase the highlighting of the latest reproduction portion after a predetermined time (for example, 5 seconds) after the reproduction pointer 44 is moved. As a result, it is possible to reduce the complexity of the display during the playback display.

(3) Free time reduction function Next, the free time reduction function of the answer playback screen will be described. Generally, when the free time reduction check box 47 is valid, the tablet 10b shortens the free time zone at the time of reproduction based on a predetermined rule for reproduction. As a result, the wasted time in which the display of the answer reproduction screen is not switched is suitably reduced.

FIG. 8 (A) shows a display example of the answer reproduction screen immediately before approaching the free time zone during stroke reproduction, and FIG. 8 (B) shows a display example of the answer reproduction screen in the free time zone.

In the example of FIG. 8A, the reproduction of the stroke to the answer column 51B is almost completed, and the entry time zone corresponding to the hatching area 61 of the second reproduction bar 43 is approaching the free time zone corresponding to the white area 62. There is. In the entry time zone corresponding to the hatching area 61, the tablet 10b shifts the playback pointer 44 to the right on the first playback bar 42 at a constant speed according to the playback speed specified by the playback speed designation field 46. ..

On the other hand, when the tablet 10b approaches the free time zone corresponding to the white area 62, as shown in FIG. 8B, the tablet 10b moves the playback pointer 44 from the end position of the white area 62 to the start position of the hatch area 63 at high speed or Move it momentarily. Therefore, the tablet 10b shifts to the reproduction of the stroke in the answer column 51C immediately or in a short period of time after the reproduction of the stroke in the answer column 51B is completed.

In this way, when the tablet 10b approaches the free time zone, the playback pointer 44 is moved to the start position of the next entry time zone at high speed or instantaneously, so that the playback time in the free time zone can be preferably set. Shorten.

Further, the tablet 10b clearly indicates on the answer reproduction screen that the free time zone is shortened when the reproduction pointer 44 is moved from the end position of the white area 62 to the start position of the hatch area 63 at high speed or instantaneously. .. In the example of FIG. 8B, since the tablet 10b shortened the playback time in the free time zone by 85 seconds as a result of the movement of the playback pointer 44 described above, the tablet 10b was shortened by 85 seconds on the operation area 40. It is displayed. The tablet 10b may display such a display during the reproduction time of the shortened free time zone, or may display such a display for a predetermined time after the reproduction time of the shortened free time zone ends. As a result, when the free time zone is shortened, the tablet 10b can preferably make the user recognize that the free time zone has been shortened, the shortened time length, and the like. As will be described later, the tablet 10b may display information on the reproduction speed in the free time zone instead of displaying the shortened time in the free time zone.

Next, a specific mode for shortening the free time zone will be described with reference to FIGS. 9A to 9D.

FIG. 9A shows an example of the second reproduction bar 43 in which the configurations of the entry time zone and the free time zone are clarified, and FIGS. 9B to 9D follow the first shortened example to the third shortened example. 9 is a graph showing the entry time zone and the reproduction time of the free time zone when the free time zone of FIG. 9A is shortened. In the second playback bar 43 of FIG. 9A, a 15-second free time zone "T1", a 30-second entry time zone "T2", a 30-second free time zone "T3", and a 30-second entry. A time zone "T4", a 90-second free time zone "T5", and a 30-second entry time zone "T6" are provided in order. Hereinafter, for the sake of clarity, the case where the reproduction speed is set to 1x speed will be described as a typical example.

In the first shortened example shown in FIG. 9B, the tablet 10b excludes the free time zones T1, T3, and T5 from the reproduction target, and reproduces only the entry time zones T2, T4, and T6. In this case, since the tablet 10b sets the reproduction time of the free time zones T1, T3, and T5 to 0 seconds, the total reproduction time of the reproduction target period is 90 seconds (30 seconds + 30 seconds + 30 seconds). According to this example, the tablet 10b can efficiently reproduce the stroke not including the free time zone.

In the second shortened example shown in FIG. 9C, the tablet 10b is provided with an upper limit time (here, 5 seconds) for the playback time of the free time zones T1, T3, and T5, and these free spaces exceed the upper limit time. The time zones T1, T3, and T5 are replaced with the free time zones "T1a", "T3a", and "T5a" that are shortened to the above-mentioned upper limit time. As a result, the reproduction time of the free time zones T1a, T3a, and T5a is 5 seconds. As a result, the tablet 10b can preferably suppress the reproduction of strokes from becoming redundant due to the existence of a long free time zone, while leaving the free time zone to recognize the existence of the free time zone.

In the tablet 10b, instead of setting the upper limit time of the reproduction time in the free time zone, the reproduction time in the free time zone may be set to a fixed value (for example, 1 second). This also makes it possible for the tablet 10b to recognize the existence of the free time zone while leaving the free time zone, and preferably suppress the reproduction of the stroke from becoming redundant due to the existence of the long free time zone.

In the third shortened example shown in FIG. 9D, the tablet 10b shortens the free time zones T1, T3, and T5 by a uniform ratio (1/5 in this case), respectively, in the free time zone “T1b”. Replace with "T3b" and "T5b". In this case, the free time zone T1 for 15 seconds becomes the free time zone T1b for 3 seconds, the free time zone T3 for 30 seconds becomes the free time zone T3b for 6 seconds, and the free time zone T5 for 90 seconds becomes 9 seconds. It becomes the free time zone T5b of.

As described above, in the third shortening example, the tablet 10b shortens the free time zone by a constant ratio. As a result, the tablet 10b can suitably suppress the reproduction of strokes from becoming redundant due to the existence of a long free time zone while maintaining the time ratio relationship between the free time zones.

The tablet 10b may be a combination of the second shortened example and the third shortened example. In this case, the tablet 10b shortens each free time zone at a uniform ratio, further sets an upper limit time for the shortened free time zone, and length of the shortened free time zone so as not to exceed the upper limit time. Adjust the size further.

Further, in the second or third shortened example, the tablet 10b is provided with a lower limit time for the shortened free time zone, and the length of the shortened free time zone is further adjusted so as not to fall below the lower limit time. You may. In this case, the above-mentioned lower limit time is set to, for example, the minimum time length during which the viewer can recognize the existence of the free time zone during playback. As a result, the tablet 10b can preferably make the viewer recognize the existence of the free time zone during playback.

As described above, in the second and third shortened examples, when the reproduction time of the free time zone is shortened, the tablet 10b intentionally leaves the entire free time zone in a shortened state without omitting it. As a result, the tablet 10b can preferably prevent the viewer from becoming redundant in the free time zone while reproducing the stroke in the free time zone.

[Processing flow]
FIG. 10 is a flowchart showing a procedure of display processing (answer reproduction processing) of the answer reproduction screen. The tablet 10b repeatedly executes the process of the flowchart of FIG.

First, the tablet 10b accepts a user input for designating an answer to be displayed on the answer reproduction screen (step S11). Then, when the tablet 10b detects the input for designating the answer, the management server requests the display of the answer playback screen including the identification information of the student (that is, the answerer) who is the user of the tablet 10b and the identification information of the designated answer. Send to 20. In this case, the management server 20 extracts the display information and stroke information of the corresponding test answer from the test information DB 24 and the test result DB 28 based on the designated student identification information and the answer identification information, and the answer reproduction screen. Display information for displaying the answer display area 50 of the above is generated. Then, the management server 20 transmits the display data D3 including the above-mentioned display information and the display information of the operation area 40 stored in advance to the tablet 10b.

Then, the tablet 10b that has received the display data D3 for displaying the answer reproduction screen displays the answer reproduction screen based on the display data D3. At this time, the tablet 10b displays all the strokes of the answer to be displayed in the answer display area 50 in a provisional display color that is less noticeable than the display color of the normal stroke (step S12). As a result, the tablet 10b can preferably make the user grasp the total stroke to be displayed by the reproduction.

Next, the tablet 10b determines whether or not the reproduction position is specified by dragging and dropping the reproduction pointer 44 or the like (step S13). Then, when the tablet 10b determines that the reproduction position is specified by dragging and dropping the reproduction pointer 44 (step S13; Yes), the tablet 10b changes the stroke to be reproduced up to the specified reproduction position from the provisional display color to the normal color. At the same time, the latest reproduced portion corresponding to the last stroke position, which is the normal color, is highlighted (step S14). Specific modes of highlighting the last stroke position, which is the normal color in step S14, are shown, for example, in FIGS. 5 to 7 described above. The tablet 10b may execute the highlighting in step S14 for a predetermined time, or may execute until it is determined that the reproduction instruction has been given in step S15 described later. On the other hand, when the tablet 10b does not detect the designation of the reproduction position by dragging and dropping the reproduction pointer 44 (step S13; No), the process proceeds to step S15.

Next, the tablet 10b determines whether or not there is a playback instruction (step S15). In this case, for example, when the tablet 10b detects the selection of the play button 41A, it determines that there is a play instruction. Then, when the tablet 10b determines that there is a reproduction instruction (step S15; Yes), the tablet 10b executes the reproduction of the stroke in the answer display area 50 based on the stroke information, and changes the reproduced stroke from the provisional display color to the normal color. Change (step S16). As a result, the tablet 10b can allow the user to preferably distinguish between the regenerated stroke and the unreproduced stroke. Further, in this case, the tablet 10b reproduces the stroke at the double speed specified in the reproduction speed designation field 46. Further, the tablet 10b may end the highlighting when the latest reproduced portion has been highlighted in step S14.

After starting the reproduction of the stroke, the tablet 10b determines whether or not the reproduction target time exists in the free time zone (step S17). Then, when the reproduction target time exists in the free time zone (step S17; Yes), the tablet 10b shortens the reproduction time in the free time zone based on a predetermined rule (step S18). Specific aspects of shortening the reproduction time in the free time zone in step S18 are shown, for example, in FIGS. 9 (B) to 9 (D) described above. On the other hand, when the reproduction target time does not exist in the free time zone (step S17; No), that is, when the reproduction target time exists in the entry time zone, the tablet 10b continues in step S16 based on the time information of the stroke information. Perform stroke playback.

Next, the tablet 10b determines whether or not it has detected the instruction to stop playback (step S19). For example, when the tablet 10b detects the selection of the back button 41B or the pause button 41C, or detects the drag-and-drop operation of the playback pointer 44, it determines that the tablet 10b has been instructed to stop playback. Then, when the tablet 10b detects the instruction to stop the reproduction (step S19; Yes), it determines whether or not to end the display of the answer reproduction screen (step S20). When the tablet 10b detects the instruction to stop the reproduction in step S19, the tablet 10b may highlight the latest reproduction portion as in step S14.

Then, when the tablet 10b ends the display of the answer reproduction screen (step S20; Yes), the tablet 10b ends the processing of the flowchart. On the other hand, if the tablet 10b does not end the display of the answer reproduction screen (step S20; No), the process returns to step S13. If the tablet 10b does not detect the instruction to stop the reproduction (step S19; No), the tablet 10b subsequently executes the reproduction of each stroke based on the time information of the stroke information in the step S16.

The flowchart shown in FIG. 10 is an example, and the processing procedure to which the present invention can be applied is not limited to this. For example, the tablet 10b may execute the process related to the reproduction position emphasis function in step S14 without determining whether or not the reproduction position is specified in step S13. That is, the tablet 10b may highlight the latest reproduction portion based on the reproduction position emphasis function while the reproduction is stopped, regardless of whether or not the reproduction position is specified. As a result, the viewer can preferably recognize the stroke portion where the reproduction is started next while the reproduction is stopped.

Here, when the playback target time is the playback start time (that is, the cueing time), the latest playback portion does not exist. Therefore, in this case, the tablet 10b may recognize the portion to be reproduced first from the unreproduced stroke and highlight the portion instead of the latest reproduced portion. Specifically, in this case, the tablet 10b extracts the coordinate points corresponding to the entry time indicating the earliest time from the stroke information, and displays a figure such as a circle with the extracted coordinate points as a reference. As a result, even at the time of cueing, the viewer can preferably recognize the stroke portion at which the reproduction is started.

[Modification example]
Next, a modification suitable for the above-described embodiment will be described. The modifications shown below may be applied to the above-described embodiment in any combination.

(Modification example 1)
The management server 20 may execute the processing of the flowchart of FIG. 10 instead of the tablet 10b.

In this case, for example, the management server 20 receives the user's input information on the answer reproduction screen from the tablet 10b, generates the display data D3 of the answer reproduction screen based on the received input information, and uses the display data D3 on the tablet 10b. Send to. In this case, the tablet 10b updates the display of the answer reproduction screen based on the display data D3 received from the management server 20 as in the so-called streaming reproduction. In this example, the management server 20 executes each determination process of steps S13, S15, S17, S19, and S20 of FIG. 10 based on the input information received from the tablet 10b, and in steps S12, S14, S16, and S18. Generates display data D3 and transmits it to the tablet 10b so that the display specified in each step is realized on the tablet 10b. Also in this aspect, the tablet 10b can preferably display the answer reproduction screen. In this modification, the management server 20 is an example of the "information processing device" in the present invention.

(Modification 2)
The teacher terminal 30 may display the answer reproduction screen similar to the tablet 10b based on the display data D2 received from the management server 20.

In this case, when the teacher terminal 30 accepts the designation of the student who displays the answer and the answer based on the user input, the teacher terminal 30 transmits a display request of the answer reproduction screen including the identification information of the student and the answer to the management server 20. .. Then, the teacher terminal 30 receives the display data D2 for displaying the answer reproduction screen as the response, and executes the processes of steps S12 to S20 of FIG. As a result, the teacher can preferably browse the answer reproduction screen for reproducing the stroke related to the student's answer. In this case, the teacher terminal 30 is an example of the "information processing device" in the present invention.

(Modification 3)
The configuration example of the education support system 100 in FIG. 1 is an example, and the configuration to which the present invention can be applied is not limited to this. For example, the teacher terminal 30 may generate display data of the answer reproduction screen to be displayed by the tablet 10b instead of the management server 20.

FIG. 11 shows a configuration example of the education support system 100x. As shown in the figure, the configuration on the student side is the same as that in FIG. 1, but the connection device 12 directly transmits the input data D1 to the teacher terminal 30 through the network 5. The test information DB 24 and the test result DB 28 are connected to the teacher terminal 30, and the teacher terminal 30 executes the processing performed by the management server 20. For example, the teacher terminal 30 generates display data D3 for displaying the answer reproduction screen by referring to the test information DB 24 and the test result DB 28, and transmits the display data D3 to the tablet 10b. Also in this aspect, the tablet 10b can preferably display the answer reproduction screen described in the embodiment.

In another example, the tablet 10b may be configured so that the test information DB 24 and the test result DB 28 can be referred to, and display data such as an answer reproduction screen may be generated by itself instead of the management server 20. In this case, the tablet 10b executes the processing of the flowchart shown in FIG. 10 based on the test information DB 24 and the test result DB 28. In this case, the tablet 10b may be able to directly refer to the test information DB 24 and the test result DB 28, and may receive the data of the test information DB 24 and the test result DB 28 required for each process from the management server 20. As a result, the tablet 10b can generate and display the display data of the answer reproduction screen by itself.

(Modification example 4)
In the examples of FIGS. 3 to 8, the stroke representing the handwriting to the answer column is the reproduction target, but the display mode to which the present invention can be applied is not limited to this. Instead of this, the stroke to be reproduced may include a stroke representing writing to a place other than the answer column. Further, the tablet 10b may display an answer reproduction screen for an answer written jointly by a plurality of students in group work or the like.

In another example, the tablet 10b may exclude strokes indicating writing other than the answer column from the reproduction target. In this case, for example, the test information DB 24 includes the position information of the answer column in the answer of each test, and the tablet 10b receives the position information of the answer column from the management server 20 and compares it with the position information of the stroke information. To do. Then, the tablet 10b distinguishes between the stroke in the answer column and the stroke outside the answer column, targets only the stroke in the answer column as the reproduction target, and hides or fixedly displays the stroke outside the answer column. The tablet 10b may detect the rectangular frame in the test answer as the answer column, target only the strokes in the rectangular frame as the reproduction target, and hide or fix the strokes outside the rectangular frame.

5 Network 10 Entry device 10a Digital pen 10b Tablet 10c Touch pen 12 Connection device 20 Management server 30 Teacher terminal 100 Education support system

Claims (6)

An acquisition means for acquiring stroke information including position information indicating the position of a stroke representing a handwriting and time information indicating an entry time of the stroke.
It has a display means for reproducing and displaying the stroke in a time series based on the time information based on the stroke information.
The display means is an information processing device that displays strokes based on acquired total stroke information, and then sequentially reproduces and displays strokes corresponding to the time information in different modes. The information processing device according to claim 1, wherein the display means displays the unreproduced stroke in a color that is less noticeable than the regenerated stroke. The display means displays a stroke based on position information corresponding to time information indicating a time before the target time for reproduction of the stroke as the reproduced stroke, and displays a time after the target time for reproduction of the stroke. The information processing apparatus according to claim 1 or 2, wherein a stroke based on position information corresponding to the indicated time information is displayed as the unreproduced stroke. When the display means displays a stroke including a non-reproduced portion and a regenerated portion, the non-reproduced portion is displayed as the non-reproduced stroke, and the regenerated portion is displayed as the regenerated portion. The information processing apparatus according to any one of claims 1 to 3, which is displayed as a stroke of. The information processing device according to any one of claims 1 to 4, wherein the display means highlights the last reproduced position of the reproduced strokes while the reproduction is stopped. A program that a computer runs
An acquisition means for acquiring stroke information including position information indicating the position of a stroke representing a handwriting and time information indicating an entry time of the stroke.
The computer is made to function as a display means for reproducing and displaying the stroke in a time series based on the time information based on the stroke information.
The display means is a program characterized in that after displaying strokes based on acquired total stroke information, strokes corresponding to the time information are sequentially reproduced and displayed in different modes.