JP2013200847A - Electronic writing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain engagement of a sensor holding body and a medium to be written without increasing operation labor burdens and to secure detection accuracy of a sensor, in an electronic writing device including a spread type medium support body.SOLUTION: An electronic writing device 2 includes a cover 52 which can be spread open in a longitudinal direction, and a plurality of ring members 54 provided on the almost center part of the cover 52 and inserted to a plurality of through-holes 70A positioned at an end of a paper medium 70 to support the paper medium 70 so as to be flipped, acquires tip position information of a pen 3, and generates stroke data using the acquired tip position information. The device includes: a sheet presser 68 having a sensor 300 for detecting information to be detected provided in the paper medium 70, and a boss 72 for positioning the paper medium 70 by being engaged with a through-hole 74; and a sheet presser support mechanism 60 for supporting the sheet presser 68 to a cover 52 so as to move forward and backward along the longitudinal direction.

Description

  The present invention relates to an electronic writing apparatus that records a writing operation on a writing medium by an operator.

  An electronic writing apparatus that electronically records a writing operation by an operator is already known (see, for example, Patent Document 1). In this electronic writing apparatus, when an operator performs a desired writing operation using a writing tool (input device) on a writing medium (form) placed on a medium support (tablet), the writing tip of the moving writing tool Are sequentially detected. Based on the detected brush tip position information, stroke data corresponding to the description of the operator on the writing medium is generated, and the description content of the operator is converted into electronic data and recorded. In addition, in order to clarify which of the plurality of writing media (the number of pages) corresponds to the data when the electronic data is converted, in the above-described conventional technology, each writing medium (each page) is covered. Detection information (page information consisting of black marks) is provided. This detected information is detected by a sensor (photo sensor) provided on a sensor holding body (lower clip) fixed to the medium support.

Japanese Patent Laid-Open No. 10-254610 (paragraphs 0015, 0016, FIGS. 8 and 9, etc.)

  In the above prior art, the upper part of a plurality of writing media placed on the medium support is held on the medium support by the sensor holding body, and each writing medium is sequentially turned upward. On the other hand, the medium support may be configured as a spread type such as a so-called notebook or notebook. In such an electronic recording apparatus, for example, a plurality of annular members are arranged in the vertical direction at the center in the horizontal direction of the medium support that is configured to be spread in the horizontal direction. A plurality of supported holes are also arranged in the vertical direction at the left end (or right end) of each of the plurality of writing media. The plurality of annular members are respectively inserted into the plurality of supported holes, whereby the plurality of writing media are supported by the medium support, respectively, and each writing medium can be turned in the left-right direction. .

  By the way, in order to ensure the detection accuracy when detecting the detection information by the sensor as described above, an engagement portion is provided on the writing medium and the engagement portion is correspondingly provided on the sensor holding body. In some cases, the detection is performed in a state where these are engaged with each other. At this time, in the structure in which the writing medium is supported through the annular member as described above, the writing medium is more in the closed state of the medium support than in the open state of the medium support. The medium is pushed to the left end (or right end) side of the medium support.

  That is, the relative positional relationship between the writing medium and the medium support with the medium support opened is different from the relative positional relationship between the writing medium and the medium support with the medium support closed. . Therefore, in the case where the sensor holding body provided with the sensor is fixed to the medium support as described above, the engagement portion of the sensor holding body is engaged with the engaged portion of the writing medium as described above. In the state where it remains, the medium support cannot be closed. As a result, in order to close the medium support, the operator needs to release the engagement by removing the engagement portion from the engagement portion. In this case, when the operator performs the writing operation on the writing medium again at the next opportunity, an operation labor load for engaging the engaging portion with the engaging portion of the writing medium again is required. It was troublesome.

  An object of the present invention is to provide an electronic writing apparatus having a spread-type medium support that can maintain the engagement between the sensor holder and the writing medium without increasing the operation labor load and ensure the detection accuracy of the sensor. Is to provide.

  In order to achieve the above object, the present invention provides an electronic writing device for recording a writing operation on a writing medium by an operator using a writing instrument, the medium support capable of being spread in a first direction, and the medium The writing medium is provided at a substantially central portion in the first direction of the support and is inserted into a plurality of supported holes positioned at the ends of the writing medium in the first direction, respectively. A plurality of annular members that are operatively supported in the first direction, position acquisition means for acquiring writing tip position information of the writing instrument, and writing tip position information of the writing instrument acquired by the position acquisition means, Stroke data generating means for generating stroke data corresponding to the description on the writing medium, a sensor for detecting detected information provided on the writing medium, and an engaged state provided on the writing medium A sensor holding body including an engaging portion that engages with the medium to position the writing medium, and the sensor holding body can be moved back and forth along the first direction with respect to the medium support body. And a supporting mechanism for supporting.

  The electronic writing apparatus of the present invention has a position detection means. When the operator performs a desired writing operation on the writing medium using the writing tool, the position of the moving writing tool is sequentially detected by the position detecting means. By continuously acquiring the brush tip position information thus detected, the stroke data generating means generates stroke data corresponding to the description of the operator on the writing medium. Thereby, the description content of the operator can be recorded as electronic data.

  In addition, at the time of the conversion to electronic data, for example, the data corresponding to what page (or what number) of a plurality of writing media, what kind of writing media, etc. Therefore, in the present invention, detected information (for example, page information and paper type information) is provided in each writing medium. This detected information is detected by a sensor provided on the sensor holder.

  And in this invention, the support mechanism which supports a sensor holding body with respect to a medium support body is provided. With this support mechanism, the sensor holding body that holds the sensor can advance and retreat along the left-right direction. As a result, when the medium support is changed from the open state to the closed state, the support medium can allow the writing medium to be pushed out to the left end (or right end) of the medium support. As described above, it is not necessary to release the engagement by removing the engagement portion from the engaged portion. As a result, the labor burden on the operator can be reduced and the convenience can be improved.

  According to the present invention, in an electronic writing apparatus provided with a spread-type medium support, the engagement between the sensor holder and the writing medium can be maintained without increasing the operation labor burden, and the detection accuracy of the sensor is ensured. Can do.

It is a system configuration figure showing the whole handwriting input system provided with the electronic writing device of one embodiment of the present invention. It is a functional block diagram showing the electric constitution of an electronic writing apparatus. It is explanatory drawing explaining stroke data. FIG. 6 is a perspective view illustrating a paper pressing state in which the paper pressing is brought into contact with a paper medium. FIG. 6 is a perspective view illustrating a paper separation state in which an arm is rotated to separate a paper presser from a paper medium. 4 is a conceptual cross-sectional view taken along the plane A-A in FIG. 4 and shows a relative position relationship between the deformed portion of the shaft and the deformed hole portion of the through hole of the arm in the sheet pressing support mechanism, and BB in FIG. It is a conceptual cross-sectional view seen in a plane. It is explanatory drawing for demonstrating the displacement of the ring member and paper medium which arise when a cover is folded from an open state to a closed state, and the tracking behavior to it. It is the front view of the cover folded into the closed state, the arrow view from the C direction in Fig.8 (a), and the arrow view from the D direction in Fig.8 (a).

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

<System outline>
In FIG. 1, the handwriting input system 1 provided with the electronic writing apparatus 2 of this embodiment is shown. In the following description, the upper side, the lower side, the right side, the left side, the near side, and the depth side of the paper surface of FIG. 1 are respectively referred to as the upper side, the lower side, the right side, the left side, the near side, and the depth side of the electronic writing apparatus 2. This will be defined and described (see the display of arrows in FIG. 1). The left-right direction in such a definition corresponds to the first direction described in each claim, the up-down direction corresponds to the second direction, the upper side corresponds to one side in the second direction, and the lower side corresponds to the other side in the second direction. It corresponds to.

  As shown in FIG. 1, the handwriting input system 1 includes an electronic writing device 2 for writing with a general-purpose pen 3 (writing tool) such as a normal ballpoint pen or a mechanical pencil, and a display 4.

<Electronic writing device>
The electronic writing device 2 has a notebook-type cover 52 (medium support) that has a left-right spread shape as shown in the figure, and a plurality (six in this example) provided in a substantially central portion of the cover 52 in the left-right direction. A ring member 54 (annular member) is provided. The ring member 54 supports a paper medium 70 (writing medium) made of, for example, predetermined paper. That is, each paper medium 70 is formed with six through holes (supported holes) 70A in the vertical direction at one end (left end or right end) in the left-right direction. Each of the paper media 70 is instructed to be capable of turning in the left-right direction by inserting the six substantially annular (or substantially rectangular) ring members 54 into the corresponding through holes 70A. Yes. As shown in FIG. 1, in this example, the operator uses the pen 3 on the paper medium 70 to write characters such as desired characters / graphics (for example, characters such as “presentation material...”). ) R and the like are described.

<Detection of coordinate information>
At this time, the coordinate detection is performed so that the right area 52R of the spread-shaped cover 52 having the left area 52L and the right area 52R is substantially in the same range as each paper medium 70 inserted through the ring member 54. A touch panel 25 as a unit is provided. The touch panel 25 detects coordinate information (= tip position information. For example, a predetermined position in the upper left portion of the touch panel 25 is an origin (0, 0). Details will be described later). Thereby, the touch panel 25 functions as a position acquisition unit described in each claim. In this example, a known configuration and detection method of the touch panel 25 can be used. For example, a pressure-sensitive method using a transparent conductive film made of ITO (indium tin oxide) can be used.

  That is, when the operator performs writing on the paper medium 70 using the pen 3 in a manner of writing characters with a normal pencil or ballpoint pen, the pressure applied by the tip of the pen 3 is transmitted to the touch panel 25 via the paper medium 70. By this pressing force, the touch panel 25 detects the position of the pen 3 as discrete coordinate information.

  Based on the detection result of the touch panel 25, the CPU 201 (see FIG. 2 described later), a plurality of writing point position information (that is, the coordinate information) corresponding to the movement of the pen 3 when the operator performs the writing operation. Is acquired. As described above, in the present embodiment, the coordinates (X, Y) of the upper left position of the touch panel 25 are the origin (0, 0), the right direction is the X axis, and the lower direction is the Y axis. Use the system. That is, the X coordinate value represents the horizontal position on the touch panel 25, and the Y coordinate value represents the vertical position.

  Then, based on the acquired plurality of coordinate information, the CPU 201 generates stroke data (details will be described later) corresponding to characters written on the paper medium 70. At this time, the electronic writing device 2 is connected to a server SV as an external storage device via a network NW by wireless (or wired) communication in this example. The stroke data generated by the CPU 201 is transmitted to the server SV and stored.

  Note that the display 4 is connected to the electronic writing apparatus 2 and corresponds to image data corresponding to the appearance of the paper medium 70 placed on the electronic writing apparatus 2 by the operator, and contents written on the paper medium 70 by the operator. Image data (a collection of stroke data) can be displayed.

<Electrical configuration of electronic writing device>
Next, the electrical configuration of the electronic writing apparatus 2 will be described with reference to FIG. In this example, a built-in power source (such as a lithium ion power source) (not shown) is provided as a main body power source. As shown in FIG. 2, the electronic writing apparatus 2 includes a CPU 201 that controls the entire electronic writing apparatus 2, a ROM 202, a RAM 203 that temporarily stores various data, a flash memory 204, a drive circuit 209, 210, a communication control unit 207 that controls transmission / reception of information with the server SV via the network NW, and a sensor 300 (details will be described later).

  The ROM 202, the RAM 203, the flash memory 204, the drive circuits 209 and 210, and the sensor 300 are electrically connected to the CPU 201. The ROM 202 includes a program storage area 2021 and an image data storage area 2023. The program storage area 2021 stores various programs that the CPU 201 executes to control the electronic writing apparatus 2. In the image data storage area 2023, for example, image data corresponding to the format information of the paper medium 70 is stored. The flash memory 204 includes a coordinate information storage area 2041.

  The drive circuit 209 is an electronic circuit for driving the touch panel 25. The drive circuit 210 is an electronic circuit for displaying an image on the display 4.

<Generation of stroke data>
Next, stroke data will be described. The stroke data is a pen position data string composed of a plurality of coordinate information acquired by the CPU 201 based on the detection result of the touch panel 25. FIGS. 3A and 3B show examples of two stroke data “a” and “b”.

  In FIG. 3A and FIG. 3B, the first stroke data “a” is data representing the trajectory of the one-stroke portion from the beginning of writing of the character “a” to the end of writing with the electronic pen 3. Along the series, eleven coordinate information (X1, Y1), (X2, Y2),..., (X11, Y11) are used as pen tip position information corresponding to the pen position numbers T1, T2,. including. The second stroke data “b” is data representing the trajectory of the one-stroke portion from the beginning of writing to the end of writing of the character “b” by the electronic pen 3, and the pen position numbers T12, T13 are arranged in time series. ,... Includes ten coordinate information (X12, Y12), (X13, Y13),... (X21, Y21) as the tip position information corresponding to each T21. In this way, the CPU 201 uses a plurality of pieces of coordinate information according to the detection result of the touch panel 25, and stroke data as a coordinate data string corresponding to the content described on the paper medium 70 by the operator using the pen 3. Is generated. The function of the CPU 201 for generating the stroke data corresponds to the stroke data generating means described in each claim. In addition, an aggregate of a plurality of stroke data generated in this way forms image data of the display 4.

<Features of this embodiment>
In the above basic configuration and operation, the present embodiment is characterized in that the sheet presser 68 (see FIG. 1) that holds the sensor 300 is supported by the cover 52. Hereinafter, the contents will be described in order.

<Page detection by sensor>
In the vicinity of the upper end portion of the right region 52R of the cover 52, a paper pressing support mechanism 60 (support mechanism) is provided. As shown in FIGS. 4 and 5, the sheet pressing support mechanism 60 supports the sheet pressing 68 (sensor holder) with respect to the right region 52 </ b> R of the cover 52 so as to be able to advance and retract along the left-right direction. .

  The paper presser 68 includes a sensor 300 and a pair of bosses 72 and 72 (engagement portions) on a lower surface 68A that can come into contact with the paper medium 70.

  The bosses 72, 72 are engaged with through holes 74, 74 (engaged portions) provided in the vicinity of the upper end portion of the paper medium 70 so as to be separated from each other in the left-right direction. The paper medium 70 is positioned to ensure detection accuracy.

  Although detailed illustration is omitted, the sensor 300 is, for example, a photosensor including a plurality of sensor elements. At this time, a predetermined detected portion made of, for example, an appropriate mark is provided at a position corresponding to the sensor 300 in the paper medium 70 (in this example, near the upper end of the paper medium 70 as described above). Yes. When the bosses 72, 72 of the paper presser 68 are engaged with the through holes 74, 74 of the paper medium 70 (see FIG. 4), the sensor elements of the sensor 300 detect the detected portion. . Accordingly, the sensor 300 can detect the above-described format information and the number of pages of the paper medium 70 and information (detected information) such as the presence / absence of the paper medium 70 itself (paper present, paper absent).

<Details of the paper presser support mechanism>
The sheet pressing support mechanism 60 includes a shaft 62 (shaft member) extending in the left-right direction on the right region 52R of the cover 52, and a pair of brackets 63a for supporting both ends of the shaft 62 with respect to the right region 52R. 63b, an arm 64 (connection member), and a spring 66 (biasing member).

  The arm 64 has a through hole 64a (see FIG. 1) inserted through the shaft 62 on the base end side (upper side in the paper pressing state shown in FIG. 4) and a distal end side (in the paper pressing state shown in FIG. 4). The sensor holder 68 is connected to the lower side.

  The spring 66 is provided on the outer peripheral side of the shaft 62 so as to be inserted through the shaft 62, and in the bracket 63 a direction (in other words, the center of the cover 52) with respect to the arm 64 (in other words, the sheet presser 68). Apply urging force (to the side). At this time, the left end portion of the shaft 62 is provided with a deformed portion 62A having a non-circular cross-sectional shape or a polygonal shape (substantially φ-shaped in this example).

<Arm rotation position lock>
6 (a), 6 (b), FIG. 4, and FIG. 4 with respect to the rotation direction lock of the arm 64 due to the mutual relationship between the shape of the deformed portion 62A and the shape of the through hole 64a of the arm 64. This will be described with reference to FIG. As described above, the arm 64 is configured to be rotatable with the shaft 62 inserted through the through hole 64a. As a result, the paper presser 68 is lowered and brought into contact with the paper medium 70 as shown in FIG. 4, and the paper separation state is raised and separated from the paper medium 70 as shown in FIG. And can be switched to either

  At this time, the deformed portion 62A of the shaft 62 serving as a fixed object to the right region 52R of the cover 52 via the brackets 63a and 63b is, for example, as shown in FIG. 6 (a) and FIG. 6 (b). A substantially “φ” shape is rotated 90 ° and turned sideways (in other words, provided with a protruding portion in the horizontal direction). On the other hand, the through-hole 64a of the arm 64 is also provided with a deformed hole 64aA having a non-circular cross-sectional shape corresponding to the deformed portion 62A. In the deformed hole 64aA, when the arm 64 shown in FIGS. 6 (a) and 4 is in the above-mentioned paper pressing state, as shown in FIG. 6 (a), the substantially “φ” shape is vertically oriented ( In other words, it is in a state of having a protruding portion in the vertical direction. Accordingly, the deformed portion 62A and the deformed hole portion 64aA are not engaged as will be described later, and in this state, the circular cross-section portion of the shaft 62 is merely inserted into the through hole 64. As a result, the arm 64 is rotatable with respect to the shaft 62 and is movable along the left-right direction.

  Here, as described above, the urging force of the spring 66 toward the bracket 63a acts in any of the above two states. 4 and 6A, the bosses 72, 72 on the lower surface 68A of the paper retainer 68 are engaged with the through holes 74, 74 of the paper medium 70 as described above. As a result, the left and right positions of the sheet presser 68 and the arm 64 are held by the engagement, while being movable in the left-right direction with respect to the shaft 62 and being biased by the spring 66 as described above. .

  On the other hand, for example, when replacing the paper medium 70, the operator disengages the boss 72 and the through hole 74 and rotates the arm 64 to raise the paper presser 68 from the paper medium 70 (see FIG. (See the white arrow in 6 (a)). Then, due to the urging force of the spring 66 on the bracket 63a side, the arm 64 and the paper presser 68 move to the bracket 63a side from the paper press state. Then, when the arm 64 is rotated by approximately 90 ° from the sheet pressing state by the rotation of the arm 64 by the operator (see the white arrow in FIG. 6B), as shown in FIGS. 5 and 6B. In addition, the deformed hole 64aA of the through hole 64a of the arm 64 is in a state where the substantially “φ” shape is in a horizontal direction (in other words, provided with a protruding portion in the horizontal direction) (= the above-described paper detaching state), and the shaft The projecting shape in the horizontal direction of the deformed portion 62A of 62 is in a corresponding positional relationship. As a result, the arm 64 is moved to the left side by the biasing force of the spring 66 toward the bracket 63a while the deformed portion 62A is welcomed into the deformed hole 64aA, and the left end portion of the arm 64 is substantially in contact with the bracket 63a. Held at. At this time, due to the fitting (engagement) of the shape of the deformed portion 62A and the deformed hole portion 64aA, the rotation direction of the arm 64 is held at substantially the same position (that is, the position flipped up as shown in FIG. 5). Locked. The deformed portion 62A and the deformed hole portion 64aA constitute a lock mechanism described in each claim. As a result, the operator can easily disengage the paper presser 68 from the paper medium 70 simply by disengaging the boss 72 and the through hole 74 as described above.

<Behavior when the cover is folded>
Next, with reference to FIGS. 7A, 7B, and 8, the behavior of the sheet pressing support mechanism 60 when the spread-type cover 62 is folded, which is the greatest feature of the present embodiment, will be described. I will explain.

  As described above, the electronic writing apparatus 2 of the present embodiment has a structure that supports the paper medium 70 via the ring member 54. In this structure, due to its characteristics, the left side region 52L and the right side region 52R of the cover 52 are opened from the open state as shown in FIG. 7A, and the left side as shown in FIG. 7B and FIG. When the region 52L is folded to the right and overlapped on the right region 52R to close the cover 52, the direction of the ring member 54 is rotated by 90 °. As a result, as can be seen by comparing FIGS. 7A and 7B, the position of the right end portion of the ring member 54 is such that the displacement t1 relative to the right side region 52R of the cover 52 is relative to the right. Arise. As a result, the paper medium 70 that is supported by the ring member 54 and is present in the right region 52R is also pushed out to the right according to the displacement t1 of the ring member 54, and is relative to the right. A displacement t2 (for example, a value substantially equal to the above t1) occurs.

  That is, in the right region 52R, the relative positional relationship between the paper medium 70 and the right region 52R in the state where the cover 52 is opened (see FIG. 7A), and the state where the cover 52 is closed (FIG. 7B and FIG. 8), the relative positional relationship between the paper medium 70 and the right region 52R is different from each other. As a result, for example, assuming that the paper presser 68 provided with the sensor 300 is fixed to the cover 52, the boss 72 of the paper presser 68 is kept engaged with the through hole 74 of the paper medium 70 as shown in the figure. In this state, the cover 52 cannot be closed. In this case, in order to close the cover 52, the operator needs to remove the boss 72 from the through hole 74 and release the engagement. In this case, when the operator performs the writing operation on the paper medium 70 again at the next opportunity, an operation labor load for engaging the boss 72 with the through hole 74 of the paper medium 70 again is necessary, which is very troublesome. It becomes.

  Therefore, in the present embodiment, by providing the sheet support mechanism 60, the arm 64 and the sheet presser 68 are supported so as to be movable (advanced and retracted) in the left-right direction. Thus, when the cover 52 is changed from the open state (FIG. 7A) to the closed state (FIG. 7B) as described above, the paper medium 70 is pushed out to the right side of the cover 52. Since it can be permitted by the support mechanism 60, the operator does not need to remove the boss 72 from the through hole 74 and release the engagement between the paper presser 68 and the paper medium 70 as described above.

  As described above, in the present embodiment, when the cover 52 is changed from the open state to the closed state, the arm 64 and the paper presser 68 are movable in the left-right direction. It can be allowed to be pushed out to the right region side. Thus, the operator can fold the cover 52 while supporting the engagement between the boss 72 and the through-hole 74 (in other words, while maintaining the engagement between the paper presser 68 and the paper medium 70), and thereafter Transition to the spread state can be performed. As a result, compared with the case where it is necessary to remove the boss 72 from the through hole 74 as described above, the burden on the operator can be reduced and the convenience can be improved.

  In the above example, the paper support mechanism 60 is provided in the right region 52R of the cover 52, and the paper presser 68 and the paper medium 70 are engaged with each other by inserting the through hole 74 through the boss 72 in the right region 52R. The case where the left region 52L is overlaid on the right region 52R in the state of being present has been described as an example, but is not limited thereto. In other words, the paper support mechanism 60 is provided in the left region 52L of the cover 52, and the paper retainer 68 and the paper medium 70 are engaged with each other when the through hole 74 is inserted into the boss 72 in the left region 52L. The same configuration can be applied to the case where the region 52R is superimposed on the left region 52L, and the same effect is obtained.

  In the present embodiment, in particular, the paper support mechanism 60 is provided with a spring 66 that urges the paper presser 68 toward the central portion side (left side in the above example) of the cover 62 via the arm 64. Thus, when the cover 52 is in the open state, the spring 66 applies a biasing force to the left side to the paper presser 68 via the arm 64 (cooperation with the engagement structure of the boss 72 and the through hole 74). Therefore, the sheet presser 68 can be positioned at a predetermined position on the center side. Further, when the cover 62 is changed from the open state (FIG. 7A) to the closed state (FIG. 7B) as described above, the paper medium 70 is placed on one end side of the cover 52 (described above). In the example, the relative displacement of the sheet presser 68 due to the extrusion when being pushed out to the right end side) can be allowed by the elasticity of the spring 66 via the arm 64.

  In the present embodiment, in particular, the arm 64 is configured to be rotatable with respect to the shaft 62 through the through hole 64a. Thus, as described above, when the operator releases the engagement between the bosses 72, 72 of the paper presser 68 and the through holes 74, 74 of the paper medium 70, the paper presser is simply connected via the arm 64. It is sufficient to rotate 68 up and down. As a result, the convenience for the operator can be improved.

  Further, particularly in the present embodiment, as described above with reference to FIG. 5, the arm 64 is locked at the position in the rotational direction in the substantially upright state rotated by approximately 90 ° from the state of FIG. 4. As a result, for example, for replacement / replenishment of the paper medium 70, the arm 64 and the paper presser 68 can be rotated, and the state can be maintained only by setting the rotational position. Thereby, it is possible to improve the convenience of the operator when the paper medium 70 is exchanged or replenished.

  Further, in the above, the electronic writing device 2 is provided with the known pressure-sensitive touch panel 25, and the movement of the tip of the pen 3 is detected by detecting the force with which the tip of the pen 3 presses the paper medium 70. Not limited to this. That is, the pen 3 is moved by the writing operation of the operator by detecting the magnetic field from the electromagnetic induction type pen 3 provided with the coil for generating the magnetic field by the coordinate detection unit (including the coil for detecting the magnetic field). May be detected. Alternatively, other appropriate methods such as a method of detecting the movement of the tip of the electronic pen 3 during the writing operation of the operator using ultrasonic waves, infrared rays, or a camera imaging result, or a capacitance method may be used. Good.

  In the above, the arrows shown in FIGS. 1 and 2 show an example of the signal flow, and do not limit the signal flow direction.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

2 Electronic writing device 3 Pen (writing instrument)
52 Cover (medium support)
54 Ring member (annular member)
60 Paper holding support mechanism (support mechanism)
68 Paper presser (sensor holder)
70 Paper media (written media)
70A Through hole (supported hole)
72 Boss (engagement part)
74 Through hole (engaged part)
300 sensors

Claims (4)

An electronic writing device for recording a writing operation on a writing medium by an operator using a writing instrument,
A medium support that can be spread in a first direction;
The medium support is provided at a substantially central portion in the first direction of the medium support, and is inserted into a plurality of supported holes at the ends of the plurality of first directions of the writing medium, respectively. A plurality of annular members that support the writing medium so as to be turned in the first direction;
Position acquisition means for acquiring writing point position information of the writing instrument;
Stroke data generation means for generating stroke data corresponding to the description on the writing medium using the writing tip position information of the writing tool acquired by the position acquisition means;
A sensor for detecting detected information provided in the writing medium; and an engaging part for engaging with an engaged part provided in the writing medium and positioning the writing medium. A sensor holder;
A support mechanism for supporting the sensor holder with respect to the medium support so as to be able to advance and retreat along the first direction;
An electronic writing apparatus comprising: The electronic writing device according to claim 1,
The support mechanism is
An electronic writing apparatus, comprising: an urging member that applies an urging force to the sensor support body toward the substantially central portion in the first direction of the medium support along the first direction. The electronic writing device according to claim 2,
The support mechanism further includes:
A shaft member extending along the first direction on the medium support;
A connecting member having a through hole inserted into the shaft member on one side along a second direction orthogonal to the first direction, and the sensor holding body connected to the other side along the second direction When,
Have
The biasing member is
An electronic writing apparatus, wherein the connection member in a state where the insertion hole is inserted through the shaft member is urged along the first direction. The electronic writing device according to claim 3,
A locking mechanism that locks the connecting member in a position in the rotational direction when the connecting member that is rotatably arranged on the shaft member through the through hole is in a predetermined rotational direction position; An electronic writing device.

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