JP5256700B2 - Terminal device and program thereof - Google Patents

Description

  The present invention belongs to the technical field of displaying on a terminal device characters or pictures drawn on dedicated paper with an electronic pen or a scanner.

  In recent years, pen-type input devices called “electronic pens”, “digital pens” and the like have appeared (hereinafter referred to as “electronic pens” in this specification), and a representative example thereof is Anoto (Anoto, Sweden). "Anoto pen" developed by the company is known (see Patent Document 1). This anotopen is used with special paper on which a predetermined dot pattern is printed. In addition to the usual ink-type pen tip, the anotopen has a small camera for reading the dot pattern on the special paper and a data communication unit. It is installed.

  When a user writes characters on the special paper with an annotation pen, or puts a check mark on the image designed on the special paper, the small camera displays the dot pattern printed on the special paper as the pen moves. Entry information such as characters and images detected and written by the user is acquired. This entry information is transmitted from the Anotopen by the data communication unit to a terminal device such as a nearby personal computer or mobile phone.

  The system using this anotopen can be used as an input device in place of the keyboard, and is very easy to use for users who are reluctant to use the personal computer and keyboard described above. Therefore, as a method for digitizing data entered in various business documents, application forms, contracts, etc., a system using an electronic pen is becoming widespread (for example, Patent Document 2).

  On the other hand, in a word processor, it has also been proposed to control the line width of characters so that outline characters that do not collapse even when the characters are enlarged or reduced can be displayed (for example, Patent Document 3).

Japanese translation of PCT publication No. 2003-511761 JP 2004-153612 A Japanese Patent No. 2666552

  When using an electronic pen such as that found in the above Anoto technology, characters and designs are entered on a special paper on which a predetermined dot pattern is printed, and the characters and designs corresponding to the entered information are sent to the terminal device. Can be displayed on the display. However, if the line width displayed on the basis of the default (initial setting) of the terminal device is large, there is a problem that an area to be filled with the displayed character or picture is generated.

  As a method for controlling such a line width, for example, the above-mentioned Japanese Patent No. 2666552 (Patent Document 3) discloses a technique for changing the line width of an outline character from the minimum line width, the maximum line length, and the minimum line width. It is disclosed. However, in the method described in this document, there are the minimum line width, the maximum line length, and the minimum line width that are defined by changing according to the output size, and the line width is determined based on the minimum line width. The display range cannot be determined based on the transmitted stroke data, and it is not possible to deal with real-time display as in the case of using the electronic pen as described above.

  The present invention has been made in view of such problems, and an object of the present invention is to use a display of a terminal device when displaying entry information obtained using an electronic pen or a scanner on the terminal device. In order to make the display easier to see, a terminal device having a line width adjustment in which a region to be filled is not generated and a program therefor are provided.

The terminal device according to the present invention has an electronic pen or scanner corresponding to a stroke from pen-down to pen-up when a character or a picture is drawn on an exclusive paper on which a coded pattern is printed by an electronic pen or a scanner. A terminal device for receiving entry information generated and transmitted in a receiving means for receiving entry information, and when displaying a stroke on a display based on the received entry information, a closed area is formed by the stroke. And processing means for adjusting a line width so that the closed region is not filled when the closed region is filled.

According to this configuration, when a user draws a character or a pattern on an exclusive paper with an electronic pen or a scanner, entry information is transmitted to the terminal device by the electronic pen or the scanner, and the terminal device receives the electronic pen or The entry information sent from the scanner is received, the processing means geometrically analyzes the stroke based on the entry information, and determines whether the closed region is formed by the stroke and the closed region is filled, When the closed region is filled, the line width is adjusted so that the closed region is not filled with the line width, thereby making it easier for the user to see the shape of characters, pictures, and the like.

  In the terminal device, when there are a plurality of closed regions due to the stroke, the processing unit may adjust the line width in order from a stroke that configures a region where the area of the closed region is small. By adjusting the line width from the stroke of the closed region having a small area that is easily filled, the process of adjusting the line width can be performed efficiently.

  Further, in the above terminal device, when there are a plurality of closed areas due to the stroke, the processing means may adjust strokes other than the strokes whose line width has been adjusted when adjusting the stroke width of the second and subsequent closed areas. It is more preferable to adjust the line width of. With this configuration, it is possible to efficiently perform the line width adjustment process by determining the line width of the stroke once the line width has been adjusted and then adjusting the line width of the unadjusted stroke.

The program according to the present invention causes a computer to function as the terminal device described above .

  With this program, the terminal device according to the present invention can be configured.

According to the terminal device and the program thereof according to the present invention, since the closed region is displayed without being filled, it is possible to improve the visibility of characters and designs on the terminal device. Since the processing is performed so that the closed region is not filled , the line width can be changed to a just right width, and the present invention can be applied to various shapes of lines including characters and pictures.

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

  FIG. 1 shows a system configuration diagram of a writing display system using the terminal device of the present embodiment. As shown in FIG. 1, in the writing display system 4, when characters and pictures are drawn on the dedicated paper 2 with the electronic pen 1, the characters and pictures are displayed on the display of the terminal device 3. A dot pattern (coded pattern) is printed on the dedicated paper 2 used here. Further, the electronic pen 1 includes a pen tip portion 6 similar to a normal ink pen. When a user writes a character or a picture on the dedicated paper 2 with the pen tip portion 6 in the same manner as a normal ink pen, the electronic pen 1 is used. 1 reads the dot pattern printed on the dedicated paper 2 locally and continuously along the trajectory (handwriting) of the pen tip 6 and calculates the coordinates of the local position on the dedicated paper 2; The electronic pen identification ID for identifying the electronic pen 1 and the written time information (time stamp) are associated with the coordinate data.

[Special paper]
First, the dedicated paper 2 will be described. The special paper 2 is a paper in which a dot pattern is printed on paper, and further, designs, items such as ruled lines and entry frames, words, words, illustrations, and the like are printed thereon. The dot pattern is printed with ink containing carbon that absorbs infrared rays. In addition, the design and the like are printed with ordinary ink that does not contain carbon. These dot patterns and designs may be printed on the paper at the same time, or either one may be printed first.

[Dot pattern]
Next, the dot pattern will be described. The dot pattern read by the electronic pen 1 employs the above-mentioned Anoto technology. FIG. 2 is a diagram illustrating the relationship between the dot position of the dot pattern printed on the dedicated paper 2 and the value to which the dot is converted. As shown in FIG. 3, each dot of the dot pattern is associated with a predetermined value depending on its position. That is, each dot is associated with a value of 0 to 3 depending on the direction in which the position of the dot is shifted from the reference position of the grid (intersection of vertical and horizontal lines: grid point). The value of each dot is further converted into a first bit value for the X coordinate and a second bit value for the Y coordinate. The dot pattern is configured such that the position coordinates on the dedicated paper 2 are determined by the combination of information thus associated.

  FIG. 3A shows an arrangement of dot patterns in a certain local portion on the dedicated paper 2. As shown in FIG. 3 (a), 6 × 6 dots are arranged within a range of about 2 mm in length and width so that a unique pattern can be obtained no matter where 6 × 6 dots are taken from any part of the dedicated paper 2. ing. The dot pattern formed by these 36 (= 6 × 6) dots holds the position coordinates (for example, where the dot pattern is located on the dedicated paper 2). FIG. 3B is a diagram in which each dot shown in FIG. 3A is converted into a value associated with the regularity shown in FIG. 2 according to the shift direction from the reference position of the lattice. This conversion is performed by the electronic pen 1 that captures an image of a dot pattern.

[Electronic pen]
Next, the electronic pen 1 will be described. As shown in FIG. 4, the electronic pen 1 includes a processor 8, a memory 9, a speaker 10, a data communication unit 11, a battery 12, an LED 13, a CMOS camera 14, a clock 15, a pressure sensor 16, and a housing 7. And an ink cartridge 17. The tip of the ink cartridge 17 is a pen tip portion 6, and the user can draw a path, a character, and a pattern while bringing the pen tip portion 6 of the electronic pen 1 into contact with the special paper 2.

  The LED 13 and the CMOS camera 14 are attached in the vicinity of the pen tip portion 6 of the electronic pen 1, and an opening 18 is formed in a portion of the housing 7 facing the LED 13 and the CMOS camera 14. The LED 13 illuminates infrared rays toward the vicinity of the pen tip 6 on the dedicated paper 2 (region 19: see FIG. 1). The region 19 is slightly deviated from the position where the pen tip portion 6 contacts the special paper 2. The CMOS camera 14 captures a dot pattern in the area 19 illuminated by the LED 13 and supplies image data of the dot pattern to the processor 8. Here, since carbon absorbs infrared rays, the infrared rays irradiated by the LED 13 are absorbed by the carbon contained in the dots. Therefore, the dot portion has a small amount of infrared reflection, and the portion other than the dot has a large amount of infrared reflection. Therefore, by taking a picture with the CMOS camera 14, by setting a threshold value based on the difference in the amount of reflected infrared light, it is possible to distinguish the dot region containing carbon from the other regions. Therefore, even if a ruled line or a frame is printed in the photographing region, the dot pattern can be recognized because the ink such as the ruled line or the frame does not contain carbon. Note that the shooting area by the CMOS camera 14 is a range including a size of about 2 mm × about 2 mm as shown in FIG. 3A, and the camera 14 is shot 75 times per second.

  The battery 12 is for supplying electric power to each component in the electronic pen 1. For example, the battery 12 is configured to turn on / off the electronic pen 1 itself by removing a cap (not shown) of the electronic pen 1. May be. The pressure sensor 16 detects the pressure applied to the pen tip 6 when the user writes characters or the like on the dedicated paper 2 with the electronic pen 1, that is, the writing pressure, and supplies the detected pressure to the processor 8.

  The processor 8 switches on / off the switches of the LED 13 and the CMOS camera 14 based on the writing pressure data supplied from the pressure sensor 16. That is, when a user writes characters or the like on the special paper 2 with the electronic pen 1, the pen tip portion 6 is applied with a writing pressure, and when the pressure sensor 16 detects a writing pressure exceeding a predetermined value, the processor 8. Determines that the user has started entry and activates the LED 13 and the CMOS camera 14.

  While the user is writing, the processor 8 uses the dot pattern of the image data supplied by the CMOS camera 14 to write the stroke (handwriting from pen down to pen up) on the dedicated paper 20. The position coordinates of the X and Y coordinates (also simply referred to as “coordinate data”) are continuously calculated. That is, the processor 8 converts the image data of the dot pattern as shown in FIG. 3A supplied by the CMOS camera 14 into the data array shown in FIG. The data is converted into a Y coordinate bit value, and X, Y coordinate data is calculated from the data array by a predetermined calculation method. The processor 8 calculates the dot pattern address set for each page or type of the dedicated paper 2 from the dot pattern arrangement. Then, the processor 8 associates the current time (time stamp) transmitted from the clock 15, the pen pressure data, and the X and Y coordinate data. Since the 6 × 6 dot pattern on the dedicated paper 2 does not overlap within the dedicated paper 2, when the user fills in the necessary items with the electronic pen 1, It can be specified by the coordinate calculation by the processor 8 whether it corresponds to the position.

  An electronic pen identification ID for identifying the electronic pen 1 is stored in the memory 9, and coordinate data calculated by the processor 8 is arranged and stored in time series along with time information (time stamp). Go. The speaker 10 outputs the content instructed by the processor 8 by voice.

  Then, the data communication unit 11 associates the electronic pen identification information, time information (time stamp), writing pressure data, dot pattern address, and X and Y coordinate data, and transmits them to the terminal device 3 as entry information. To do. Transmission by the data communication unit 11 is immediately and sequentially performed toward the terminal device 3 by wireless transmission of Bluetooth (registered trademark).

[Terminal device]
Next, the terminal device 3 will be described with reference to FIG. The terminal device 3 includes, as hardware, an antenna device capable of data communication with the electronic pen 1, a processor such as a CPU, a memory such as a ROM and a RAM, a display, a mouse, a keyboard, and a personal computer. The FIG. 5 is a functional block diagram of the terminal device 3. As shown in the figure, the terminal device 3 functionally includes a receiving means 31, a storage means 32, a processing means 33, a display means 34, and an input means 35 such as a mouse or a keyboard. A clock 36 for transmitting the current time and a transmission means 37 are provided. Then, the terminal device 3 performs a predetermined process by executing a dedicated application using data received from the electronic pen 1.

[Dedicated application]
Next, the dedicated application (program) 40 installed in the terminal device 3 will be described with reference to FIG. FIG. 6 shows a module configuration of the dedicated application 40. As illustrated in FIG. 6, the dedicated application 40 includes a reception module 41, a storage module 42, and a processing module 43.

  The receiving module 41 has a function of causing the receiving unit 31 to receive entry information created by a specific protocol transmitted from each electronic pen 1, and causes the terminal device 3 to configure the receiving unit 31 with an antenna or the like. It is a module.

  The storage module 42 stores window information and various setting information for displaying the handwriting drawn on the dedicated paper 2 on the display means 34 in correspondence with the dot pattern address on the dedicated paper 2 and stores them in the storage means 32. Or a module for storing the entry information acquired from the electronic pen 1 in a predetermined format, and for configuring the storage device 32 in the terminal device 3.

  The processing module 43 has a function of causing the display means 34 to display the contents entered on the dedicated paper 2 in various forms, and has a function of displaying the dedicated paper 2 and the contents entered therein. This is a module that causes the terminal device 3 to constitute the processing means 33 by the processor.

  The process performed by the dedicated application installed in the terminal device 3 is a process of displaying the stroke data of characters and patterns drawn by the user with the electronic pen 1 on the display of the display unit 34 in an easily viewable state.

An overview of processing performed by the dedicated application will be described with reference to FIG. For example, when stroke data obtained by two-dimensionally interpolating position coordinate data in the entry information transmitted by the electronic pen 1 is displayed as an initial set value (default value) of the line width, FIG. ) Stroke S ₁ . If this were reduced display remains the same line width, a state where the closed region as the stroke S ₂ is filled overlapped by the line-width in Figure 7 (b). That is, the stroke data frame F (shape having no line width) is as shown in FIG. 7C, but if this is displayed with the default line width, the stroke S ₂ in FIG. Thus, the closed area is filled. Therefore, it narrowed line width, and displays as are not filled closed region as the stroke S ₃ in FIG. 7 (d).

  When there are a plurality of strokes constituting the closed region, the determination of the line width of these strokes will be described with reference to FIG. FIG. 8A shows a plurality of strokes displayed by default, and FIG. 8B shows a frame of a plurality of strokes.

  As a procedure, the area of each closed region composed of a plurality of strokes Sa, Sb, Sc, Sd is obtained, and evaluation is performed from the closed region where the area is the smallest and the area of the overlap region between the line widths is the largest. Perform (closed area A in the figure). First, the line widths of all strokes (strokes Sa, Sb, Sc in the figure) constituting the closed region A are similarly reduced so that the closed region A is not filled. In this way, in a state where the line width is narrowed so that the closed region A is not filled, it is checked whether all the closed regions are filled.

  When the second smallest closed region (closed region B in the figure) is not filled when all strokes (strokes Sa, Sb, Sc in the figure) constituting the closed region A are narrowed with the same line width. Does not adjust the line width any further. On the other hand, if the stroke is filled, the stroke width of the stroke that constitutes the closed region B other than the stroke whose stroke has already been adjusted (stroke Sd in the figure) is narrowed so that the closed region B is not filled. To. In this case, there is a possibility that the line widths of the strokes Sa, Sb, and Sc and the stroke Sd are not the same. This procedure is repeated until all closed areas are no longer filled.

  When the closed area is filled with the default line width, the standard for thinning the line width so that the closed area is not filled is as follows. That is, as shown in FIG. 9, the area of the closed region Af composed of the frames of the strokes Sa, Sb, and Sc is Afs, and the area An of the region An that is not filled in depending on the stroke line width in the closed region Af. Assuming that Ans, the line width h to be configured is reduced by the same reduction amount until the area An occupies X% or more of the area of the closed area Af. That is, when (Ans / Afs) × 100 = Y%, the line width h is decreased until Y% ≧ X%. Similarly, for the second and subsequent closed regions, the line width h is decreased until the stroke width of strokes constituting the closed region other than the stroke whose stroke has been adjusted is Y% ≧ X%. The threshold value X% may be different for each display magnification.

  In addition, even when there are multiple closed regions in one stroke, the ratio of regions that are not filled with line width in order from the closed region where the area of each closed region is the smallest and the area of the overlap region between the line widths is the largest The line width is narrowed so that Y% is equal to or greater than the threshold value X%.

  The terminal device 3 in which such a dedicated application 40 is installed adjusts the stroke width displayed on the display of the display means 34. Therefore, when the stroke is displayed on the display based on the position coordinates of the entry information transmitted from the electronic pen 1, the above-described algorithm is performed by the processing means 33.

[Processing flow of display display by writing display system]
Next, processing performed by the writing display system of the present embodiment will be described with reference to the flowchart of FIG.

  When the user draws a character or a picture on the dedicated paper 2 with the electronic pen 1, the electronic pen 1 generates entry information corresponding to a stroke from pen down to pen up and transmits it to the terminal device 3. That is, when the user touches the pen tip 6 of the electronic pen 1 to the dedicated paper 2 (pen down) to draw a character or a picture, the electronic pen 1 detects a writing pressure exceeding a predetermined value by the pressure sensor 16. As a result, contact with the special paper 2 is detected (step S11), the dot pattern is imaged by the CMOS camera 14 while irradiating infrared rays with the LED 13, and the special paper is obtained from the image data of the imaged dot pattern by the processor 8. 2 calculates the coordinate data and the dot pattern address at the contact position. Then, the processor 8 generates entry information in which the dot pattern address, the coordinate data, the writing pressure data, and the current time display (time stamp) are associated, and transmits the entry information to the terminal device 3 via the data communication unit 11. (Step S12).

  As described above, the electronic pen 1 continues to generate entry information of the stroke and transmit it to the terminal device 3 while the user continues to draw characters and pictures on the dedicated paper 2. When the user removes (pens up) the electronic pen 1 from the dedicated paper 2, the processor 8 recognizes that the writing pressure detected by the pressure sensor 16 is less than a predetermined value (step S13). The transmission to the terminal device 3 is interrupted. When the user continues to touch (pen down) to draw a character or a pattern (step S14; Yes), the process of generating the stroke entry information again and transmitting it to the terminal device 3 is repeated. On the other hand, when the user does not draw a character or a picture with the electronic pen 1, since pen down is not detected (step S14; No), transmission of entry information to the terminal device 3 is stopped as it is. .

  On the other hand, the terminal device 3 activates the application, reads the window information and various setting information stored in the storage information 32, and sets the handwriting drawn on the dedicated paper 2 on the display means 34 (step S21). In this state, when the terminal device 3 receives the entry information transmitted by the electronic pen 1 by the receiving means 31 (step S22), the processing means 33 stores the received entry information in the storage means 32 and the characters. When it is determined that the closed area in the stroke such as a pattern is filled with the default line width, the line width is adjusted so that the closed area is not filled (step S23), and the line width is processed. Characters, pictures, etc. are displayed on the display of the display means 34 by stroke (step S24). If the user performs a screen reduction operation during display (step S25; Yes), the processing unit 33 repeats the process of detecting the operation and performing line width adjustment processing (steps S23 and S24). When the reduction operation is not detected (step S25; No), it is determined whether or not the user has pressed the application end button by clicking on the display (step S26). When the application is not ended (step S26; No) returns to step S22 and repeats the subsequent processes as a state in which entry information can be received. On the other hand, when the application end button is pressed (step S26; Yes), the execution of the application is ended.

  FIG. 11 is a flowchart showing an algorithm for line width adjustment in the line width adjustment process in step S23 of FIG. 10, and details of this algorithm will be described next.

  First, the processing means 33 determines whether or not there is a closed region in the displayed stroke based on the received entry information (step S31), and determines that there is no closed region (step S31; No). The line width adjustment process ends. At this time, the processing means 33 displays the stroke on the display means 34 with the default line width set. On the other hand, when the processing means 33 determines that there is a closed region in the stroke (step S31; Yes), it is determined whether there are a plurality of closed regions (step S32).

  If it is determined in step S32 that the processing unit 33 does not have a plurality of closed areas (No), it is determined whether or not one closed area is filled (Step S33), and if it is not filled (Step S33). ; No) ends the line width adjustment process. Also in this case, the processing means 33 displays the stroke on the display means 34 with the default line width. On the other hand, when the processing bullet 33 determines that the closed region is filled (step S33; Yes), a process for narrowing the line width is performed. That is, when the area of the closed region Af composed of the frame is Afn, the area of the region An not covered by the stroke line width is Ans, (Ans / Afs) × 100 = Y%, and the threshold is X% The line width h is decreased until Y% ≧ X%. Specifically, when the processing means 33 determines that Y% ≧ X% (step S34; Yes), the line width adjustment process is terminated, and when Y% ≧ X% is not satisfied (step S34; No). Is displayed by reducing the line width of the stroke constituting the closed region by the same amount (step S35), and the reduction of the line width is repeated until Y% ≧ X%.

  If the processing means 33 determines in step S32 that there are a plurality of closed areas (yes), it is determined whether there are a plurality of closed areas (step S36). ) Performs adjustment to narrow the line width constituting the filled area until Y% ≧ X% (steps S34 and S35). On the other hand, when the processing means 33 determines in step S32 that there are a plurality of filled closed regions (step S36; Yes), the area of the closed region is the smallest among the closed regions, and the overlap region of the line widths A closed region having the largest area is extracted (step S37), and processing for narrowing the line width is performed. That is, in the closed region Af composed of frames, when (Ans / Afs) × 100 = Y% and the threshold is X%, the line width h is decreased until Y% ≧ X%. Specifically, when the processing means 33 determines that Y% ≧ X% is not satisfied in the initially extracted closed region (step S38; No), the stroke width constituting the closed region is decreased by the same amount. (Step S39), and the reduction of the line width is repeated until Y% ≧ X%.

  If Y% ≧ X% or Y% ≧ X% due to the line width reduction (step S38; YES), it is determined whether or not there is a closed region filled in other closed regions. Judgment is made (step S40), and if there is a filled area, the process returns to step S37 to extract the closed area having the smallest area among the closed areas and the largest area of the overlap area between the line widths. The process for reducing the width is repeated (steps S38 and 39). In this case, the stroke to be thinned is a stroke constituting a closed region other than the stroke whose line width has already been adjusted. If the processing means 33 determines that there is no filled area in step S40 (No), the line width adjustment process is terminated (step S41).

[Operational effects of this embodiment]
According to the system using this terminal device, when a user draws a character or a picture on the dedicated paper 2 with the electronic pen 1, the electronic pen 1 determines a position coordinate of a stroke corresponding to the drawn character or the picture. Calculation is performed at intervals, entry information including the position coordinates is generated, and the entry information is immediately and sequentially transmitted to the terminal device 3. Then, the terminal device 3 obtains entry information from the electronic pen 1, geometrically analyzes the coordinate data of the entry information, extracts a closed area, and then the line width of the default value is the line width. In the case of being filled in, the closed area is displayed so as not to be filled by adjusting the line width to be thin.

  Here, when there are a plurality of closed regions to be filled, since the line width is adjusted in order from the stroke that forms the closed region with a small area that is easily filled, the filling of other closed regions can be efficiently processed. Also, when adjusting the line width of the strokes that make up the second and subsequent closed areas, the stroke width that has been adjusted once is adjusted to make the line width of strokes other than the stroke already adjusted the line narrower. Is determined and the line width of the unadjusted stroke is finely adjusted, so that the process of adjusting the line width can be performed efficiently.

  The present invention is not limited to the above embodiment.

  In the above embodiment, the electronic pen 1 is used as a device for drawing characters and patterns on the dedicated paper 2, but a pen-type scanner without an ink cartridge may be used. Further, the default value of the line width may be set appropriately by the user in the terminal device 3. Also, in the line width adjustment process, when there are a plurality of filled closed areas, the area having the smallest area and the largest area of the overlap area between the line widths is extracted (step S37). It may be simply extracted from the region where the area of the closed region is the smallest.

  In the above embodiment, the stroke line width is adjusted on the condition that the closed region is filled. However, even if the closed region is not filled, the area Ans of the region An that is not filled by the stroke line width is closed. If the ratio Y% of the area Af to the area Afs is less than X%, the line width may be adjusted so that Y% ≧ X%.

  The present invention can be applied to all applications that display strokes in real time. Further, the present invention can be applied to an application for displaying an entry on a whiteboard, an application used for collaborative learning, and the like.

It is a system configuration figure using a terminal unit concerning an embodiment of the present invention. It is explanatory drawing of the expression method of the information by the dot pattern printed on the exclusive paper. (A) shows a dot pattern typically and (b) is an explanatory view showing an example of information corresponding to it. It is explanatory drawing which shows typically the electronic pen shown in FIG. It is a functional block diagram of the terminal device shown in FIG. It is a module block diagram of the exclusive application in a terminal device. It is explanatory drawing which shows the outline | summary of the process performed with a dedicated application. It is explanatory drawing of stroke line width determination in case there are two or more strokes which comprise a closed region. It is explanatory drawing for showing the reference | standard which makes the line | wire width of a closed area | region narrow. It is a flowchart which shows the display display flow performed with the writing display system of embodiment. It is a flowchart which shows the algorithm of the line | wire width adjustment in the line | wire width adjustment process of step S23 of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electronic pen, 2 ... Exclusive paper, 3 ... Terminal device, 4 ... Writing display system, 6 ... Pen tip part, 7 ... Housing, 8 ... Processor, 9 ... Memory, 10 ... Speaker, 11 ... Data communication unit, DESCRIPTION OF SYMBOLS 12 ... Battery, 13 ... LED, 14 ... CMOS camera, 15 ... Clock, 16 ... Pressure sensor, 17 ... Ink cartridge, 18 ... Opening part, 19 ... Area | region, 31 ... Receiving means, 32 ... Memory | storage means, 33 ... Processing means 34 ... display means, 35 ... input means, 36 ... clock, 37 ... transmission means, 40 ... dedicated application (program), 41 ... reception module, 42 ... storage module, 43 ... processing module

Claims (4)

Entry information generated and transmitted by the electronic pen or scanner corresponding to the stroke from pen down to pen up when drawing characters or pictures on the dedicated paper with the coded pattern printed with the electronic pen or scanner A terminal device for receiving
Receiving means for receiving the entry information;
In displaying the stroke on the display based on the received entry information, when it is determined whether closed regions closed region by stroke is formed is filled, closed area is filled, the closed region is filled And a processing unit that adjusts the line width so that the line width does not exist.   2. The terminal device according to claim 1, wherein, when there are a plurality of closed regions due to strokes, the processing unit adjusts the line width in order from strokes that constitute regions where the area of the closed region is small.   When there are a plurality of closed areas due to strokes, the processing means adjusts the line widths of strokes other than the line width adjusted strokes when adjusting the stroke widths of the strokes constituting the second and subsequent closed areas. The terminal device according to claim 2. The computer program for causing to function as a terminal device according to any one of claims 1 to 3.