JP2009181505A - Electronic writing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic writing tool for reading an image on a medium even in a state where the tool is capped. <P>SOLUTION: A cap part 610 includes a cap body part 611; a clip 612; a filter 614; and a surrounding member 615. The clip 612 includes a facing piece (facing part) 612a oppositely arranged on an outer circumference plane of the body part 611; and an oblique side part 612b disposed to be connected to an end part side of the piece 612a and arranged so as to intersect an arrangement direction of the piece 612a. Further, the clip 612 includes an opening part 612e capable of irradiating an infra-red ray from an infra-red ray LED 63 to a medium and receiving light reflected from the medium by an infra-red ray CMOS 64. Meanwhile, the filter 614 is mounted so as to close the opening part 612e disposed at the clip 612 and suppresses entering of dust and moisture into the inside of the cap part 610. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic writing instrument.

2. Description of the Related Art In recent years, attention has been paid to a technique in which characters, figures, and the like written on a medium such as paper are converted into electronic data, which is transferred to a personal computer, a mobile phone, etc., and the written contents are stored.
For example, Patent Document 1 describes the following technique. That is, when a medium on which fine dots formed with different patterns on the surface are printed and a pen device with an image sensor, for example, are written on the medium by the pen device, A dot pattern at the position of a character, a figure, or the like is read into the image sensor, and the position coordinates of the position of the character, the figure, etc. (drawing trace) are specified. Thereby, generation of an electronic document composed of written characters, graphics, etc., addition of characters, graphics, etc. to a predetermined electronic document are performed.
Patent Document 2 describes the following technique. That is, an electronic pen having a main body, a cap, and a starting device is described. The starter device includes a sensor unit that senses whether the cap is present or absent on the body, the starter device reacting when the cap is removed from the body or from the front end of the body In response to the cap being placed on a part that is separated, it is operable to activate the electronic pen. The triggering device is further operable to deactivate the electronic pen in response to the cap being placed on a portion that is separated from the front end of the body. The activation device is further operable to deactivate the electronic pen in response to the cap being placed on the body.

JP 2004-94907 A Special table 2004-527853 gazette

Here, in a pen device (electronic writing instrument) capable of reading an image on a medium, for example, by irradiating light from the tip of the pen device and receiving reflected light, an image such as a dot attached to the medium is obtained. read. By the way, when a cap is made with such a pen device, it is difficult to read an image on the medium.
An object of the present invention is to provide an electronic writing instrument that can read an image on a medium even in a capped state.

The invention described in claim 1 includes a writing unit that enables writing on a medium, an emitting unit that emits light toward the medium, and a light receiving unit that receives reflected light from the medium. Cap main body provided with an electronic writing instrument main body and a passing part through which the emitted light from the emitting part and the reflected light from the medium pass when mounted on the side of the electronic writing instrument main body covering the emitting part and the light receiving part And a cap having a clip piece attached to the cap main body, and the clip piece of the cap receives light emitted from the light emitting portion of the electronic writing instrument main body and light reflected from the medium. The electronic writing instrument is characterized in that a clip-side passage portion is provided.
The invention according to claim 2 is the electronic writing instrument according to claim 1, wherein the clip side passage portion is formed by a through-hole penetrating the clip piece.
A third aspect of the present invention is the electronic writing instrument according to the first or second aspect, wherein the clip-side passage portion is formed in a shape that does not interfere with the light emitted from the light emission portion.
According to a fourth aspect of the present invention, the clip piece has one end located on the side of the cap main body portion close to the insertion opening into which the electronic writing instrument main body is inserted and the other end located on the side away from the insertion opening. The electronic writing instrument according to claim 1, further comprising an inclined portion, wherein the clip-side passage portion is provided in the inclined portion of the clip piece.
The invention according to claim 5 is characterized in that a facing portion that faces the outer peripheral surface of the cap main body portion of the clip piece is provided connected to the one end side of the inclined portion. Is an electronic writing instrument.

The invention described in claim 6 includes a writing unit that enables writing on the medium, an emitting unit that emits light toward the medium, and a light receiving unit that receives reflected light from the medium. Cap main body provided with an electronic writing instrument main body and a passing part through which the emitted light from the emitting part and the reflected light from the medium pass when mounted on the side of the electronic writing instrument main body covering the emitting part and the light receiving part Portion, a clip piece having a through hole through which light emitted from the passage part and reflected light from the medium pass, and a light transmitting member provided in the through hole that is positioned by the cap body part and the clip piece And an electronic writing instrument having a cap.
The invention according to claim 7 is the electronic writing instrument according to claim 6, wherein the light transmitting member is positioned by being sandwiched between the cap main body portion and the clip piece.
The invention according to claim 8 is the electronic writing instrument according to claim 6 or 7, wherein the light transmitting member is provided on the inner surface side of the outer surface of the clip piece.
The invention according to claim 9 is characterized in that a portion of the clip piece where the through hole is formed is formed to be inclined with respect to the axial direction of the cap main body portion. The electronic writing instrument according to any one of the above.
In the invention according to claim 10, the emitting part emits light toward the medium when a pressure is applied to the writing part, and the cap is the emitting part of the electronic writing instrument main body. 10. A transmission member for transmitting pressure from the medium to the writing unit when the pressure sensor is attached to a side covering the portion and the light receiving unit and pressed against the medium. The electronic writing instrument according to any one of the above.
The invention according to claim 11 is the electronic writing instrument according to claim 10, wherein the transmission member is attached to the through hole provided in the clip piece.

According to the first aspect of the present invention, it is possible to provide an electronic writing instrument that can read an image on a medium even when the cap is applied.
According to the second aspect of the present invention, the clip side passage portion can be realized with a simple configuration.
According to the third aspect of the present invention, the amount of light applied to the medium can be increased as compared with the case where the present invention is not adopted.
According to claim 4 of the present invention, the posture of the electronic writing instrument when the clip side passage portion is pressed against the medium can be tilted with respect to the medium, and the operability of the electronic writing instrument is improved compared to the case where the present invention is not adopted. Can be improved.
According to the fifth aspect of the present invention, the opposing portion of the clip piece can be arranged at a position that is unlikely to hinder the user's field of view.

According to the sixth aspect of the present invention, it is possible to provide an electronic writing instrument that can read an image on a medium even in a capped state.
According to the seventh aspect of the present invention, the light transmission member can be positioned stably.
According to the eighth aspect of the present invention, compared to the case where the present invention is not adopted, for example, it is possible to suppress the occurrence of scratches on the light transmitting member.
According to claim 9 of the present invention, the posture of the electronic writing instrument when the through-hole is pressed against the medium can be tilted with respect to the medium, and the operability of the electronic writing instrument is improved as compared with the case where the present invention is not adopted. be able to.
According to the tenth aspect of the present invention, it is possible to irradiate the medium with light even in a capped state.
According to the eleventh aspect of the present invention, it is not necessary to separately provide a through hole for attaching the transmission member, so that the electronic writing instrument can be configured at a lower cost than in the case where the present invention is not adopted.

The best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described below in detail with reference to the accompanying drawings.
First, the overall configuration of the handwriting information management system in the present embodiment will be described.
FIG. 1 is a diagram showing an example of the configuration of the handwriting information management system of the present embodiment. As shown in FIG. 1, the handwriting information management system includes a terminal device 10, a document server 20, an identification information server 30, an image forming device 40, and a terminal device 50 connected to a network 80. It is configured. A digital pen 60 is connected to the terminal device 50 via a communication device 70.

In the handwriting information management system of this embodiment, when a print request for an electronic document is made from the terminal device 10, the document server 20 receives the print request from the terminal device 10, and the print request is sent to the image forming apparatus 40. An instruction to print the electronic document is issued. Thereby, the image forming apparatus 40 prints the document image of the electronic document on a medium such as paper. At this time, the image forming apparatus 40 prints a code image on the medium in addition to the document image.
The code image here is an image of the identification code and the position code obtained by encoding the identification information and the position information. The identification information is information for uniquely identifying a medium, and is issued by the identification information server 30 in the present embodiment. The position information is information for specifying the coordinate position on the medium, and is generated by the document server 20 in the present embodiment.
When the user writes with the digital pen 60 on the medium on which the document image and the code image are printed, the digital pen 60 generates handwritten information (handwriting information) based on the position information included in the code image. . At the same time, the digital pen 60 recognizes identification information included in the code image. Then, the recognized identification information and handwriting information are sent to the document server 20 via the terminal device 50. The document server 20 that has received the identification information and the handwriting information specifies the electronic document printed on the medium based on the identification information, and stores the specified electronic document and the handwriting information in association with each other.

In this specification, electronic data that is the basis of an image recorded on a medium is expressed as “electronic document”. However, this does not mean only data obtained by digitizing a “document” including text. For example, "electronic document" including image data (regardless of raster data or vector data) such as pictures, photographs, figures, etc., data recorded by database management software or spreadsheet software, and other printable electronic data It is said.
In the present specification, the “medium” may be any material as long as it can print an image. A typical example is paper, but it may be a plastic sheet such as an OHP sheet or a metal plate.
Furthermore, in this specification, processing is performed using identification information for uniquely identifying each of the electronic document, the medium, and the digital pen 60 and the user. It shall mean the identification information. That is, in the present embodiment, this identification information is used as an example of medium identification information uniquely given to the medium.

Then, each component which comprises the handwriting information management system of this Embodiment is demonstrated in detail.
The terminal device 10 is a computer device that requests the document server 20 to print an electronic document. Here, as the terminal device 10, for example, a personal computer, a workstation, or another computer is used.
The document server 20 is a computer device that stores and manages electronic documents. Also, when a request for printing an electronic document is received from the terminal device 10, an image of the electronic document and a code image representing identification information and position information are generated, and a print command for printing a composite image obtained by synthesizing the image on a medium is generated. Output to the forming apparatus 40. Here, as the document server 20, for example, a personal computer, a workstation, or another computer is used.

The identification information server 30 is a computer device that issues identification information to be given to a medium. The issued identification information is stored in association with the electronic document printed on the medium to which the identification information is assigned. Here, as the identification information server 30, for example, a personal computer, a workstation, or another computer is used.
The image forming apparatus 40 is an apparatus that prints an image on a medium and outputs it as a print document. The image forming apparatus 40 may be a single printer or printing machine, or may be a so-called “multifunction machine” having a scanner or a communication function. Here, as an image forming method in the image forming apparatus 40, for example, an electrophotographic method may be used, but other methods may be used.

  The terminal device 50 transmits information obtained by digitizing writing on the print document (hereinafter referred to as “handwriting information”) to the identification information server 30 in order to reflect the information in the electronic document that is the basis of the image recorded in the print document. A computer device. Alternatively, the electronic document to be reflected in the handwriting information may be displayed on a display (not shown), and the handwriting information may be displayed on the display. Here, as the terminal device 50, for example, a personal computer, a workstation, or another computer is used. In the present embodiment, handwriting information is used as an example of handwriting information obtained by digitizing the contents of writing. The handwriting information is mainly described as handwritten information, but is not limited to this, and includes, for example, information mechanically drawn by a plotter that is a device for outputting drawing data such as architecture and machinery.

The digital pen 60 is a pen device used for writing characters or figures on a printed document. An image sensor that reads a code image printed on the medium is provided. Then, position information is detected from the code image read by the image sensor, and handwriting information obtained by converting written characters or figures into image data is generated and stored based on the position information.
The communication device 70 is a device that acquires handwriting information from the digital pen 60 and transmits it to the terminal device 50. Examples of a communication method between the communication device 70 and the digital pen 60 and a communication method between the communication device 70 and the terminal device 50 include USB (Universal Serial Bus), Bluetooth (registered trademark), an infrared communication function, and the like. Various schemes are used. In FIG. 1, the communication device 70 is shown as a separate body from the digital pen 60, but the communication device 70 is not necessarily a separate body and may be configured integrally.

Subsequently, details of each component constituting the handwriting information management system will be described.
First, the configuration of the document server 20 will be described.
FIG. 2 is a block diagram illustrating an example of a functional configuration of the document server 20. As shown in FIG. 2, the document server 20 includes a reception unit 21, an identification information acquisition unit 22, an electronic document management unit 23, a handwriting information management unit 24, and a document / handwriting information storage unit 25. Further, it includes an identification code generation unit 27a, a position code generation unit 27b, a code arrangement unit 27c, a pattern image storage unit 27d, and a code image generation unit 27e. Furthermore, a document image generation unit 26, an image composition unit 28, and a transmission unit 29 are provided.

The receiving unit 21 receives a print request from the terminal device 10. Here, in addition to the electronic document, the print request includes identification information (hereinafter referred to as “document ID”) of the electronic document to be printed and various kinds of information for determining the layout of the electronic document on the printed medium. Settings (hereinafter referred to as “print settings”) are included. The document ID is assigned to each electronic document by the terminal device 10, but may be assigned by the document server 20. Further, the receiving unit 21 receives from the identification information server 30 identification information that is uniquely given to the medium on which the print document is printed. Further, when writing is performed on the print document, the identification information embedded in the print document and handwriting information obtained by digitizing the content of the print document (written image) are received from the identification information server 30. .
The identification information acquisition unit 22 acquires the document ID and print settings from the reception unit 21, passes them to the transmission unit 29, instructs transmission of an identification information issue request, passes this to the document image generation unit 26, and sends the document Instructs generation of an image. Further, the identification information of the medium is acquired from the receiving unit 21, and this is passed to the identification code generating unit 27a to instruct generation of the identification code.

  The electronic document management unit 23 acquires the identification information and the electronic document received by the reception unit 21 and registers them in the document / handwriting information storage unit 25 in association with each other based on the document ID. Also, a new electronic document (second electronic document) that reflects the state of the electronic document stored in the document / handwriting information storage unit 25 printed on the medium according to the print settings is generated, and the generated second The second electronic document is stored in the document / handwriting information storage unit 25. Further, when the display or printing of the electronic document is instructed, the corresponding identification information and electronic document are taken out from the document / handwriting information storage unit 25.

The handwriting information management unit 24 acquires the identification information and handwriting information received by the receiving unit 21 and registers the handwriting information in the document / handwriting information storage unit 25 in association with the electronic document based on the identification information. When the display of handwriting information is instructed, the corresponding identification information and handwriting information are extracted from the document / handwriting information storage unit 25.
The document / handwriting information storage unit 25 stores an electronic document managed by the electronic document management unit 23 and handwriting information managed by the handwriting information management unit 24. Here, in the present embodiment, the document / handwriting information storage unit 25 is provided as an example of a storage unit that stores the identification information, the electronic document, and the handwriting information in association with each other.

The identification code generation unit 27a generates identification code by encoding identification information for specifying a medium.
The position code generation unit 27b encodes position information indicating the coordinate position on the medium to generate a position code.
The code arrangement unit 27c arranges the identification code generated by the identification code generation unit 27a, the position code generated by the position code generation unit 27b, and the like on a two-dimensional plane according to a predetermined layout (see FIG. 3 in the subsequent stage). Then, a two-dimensional code array is generated.
The pattern image storage unit 27d stores a pattern image corresponding to the code value of each code stored in the code array.
The code image generation unit 27e refers to the two-dimensional code array generated by the code arrangement unit 27c, selects a pattern image corresponding to each code value, and generates a code image.

The document image generation unit 26 acquires a document ID and print settings from the identification information acquisition unit 22, and reads an electronic document specified by the document ID from the document / handwriting information storage unit 25. Then, a document image of the electronic document is generated according to the print setting.
The image composition unit 28 synthesizes the code image generated by the code image generation unit 27e and the document image generated by the document image generation unit 26 to generate a composite image.
The transmission unit 29 transmits an identification information issuance request to the identification information server 30. Also, an image print command for the medium is transmitted to the image forming apparatus 40. Furthermore, when the display of handwriting information is instructed, the identification information and handwriting information are transmitted to the identification information server 30.

Here, the code image generated by the document server 20 of the present embodiment will be described.
FIG. 3 is a diagram illustrating an example of an image constituting the code image. First, unit patterns constituting a code image will be described. FIG. 3A shows an example of the unit pattern.
The unit pattern is the minimum unit for embedding information. In FIG. 3A, a black area and a shaded area are areas where dots can be arranged, and a white area between them is an area where dots cannot be arranged. In addition, among the areas where dots can be arranged, dots are arranged in black areas, and dots are not arranged in hatched areas. That is, FIG. 3A shows an example in which a unit pattern is configured by arranging dots at two places (black areas) selected from nine places where dots can be arranged. Here, since there are 36 (= ₉ C ₂ ) combinations for selecting 2 locations out of 9 locations, there are 36 types of unit patterns. Of these, four types of unit patterns are used as synchronization patterns. The synchronization pattern is a pattern for detecting the rotation of the image and specifying the relative positions of the identification code and the position code. In particular, since it is necessary to detect the rotation of the image, the four types of synchronization patterns are selected such that when one of the synchronization patterns is rotated 90 degrees, another synchronization pattern is obtained. Further, the 32 types of unit patterns other than the 4 types of unit patterns are used as information patterns expressing the identification code and the position code, and 5-bit information is expressed.

  By the way, the dots shown in FIG. 3A are only for information representation, and do not necessarily coincide with the dots that mean the minimum points constituting the image. In the present embodiment, dots for information expression (the minimum square in FIG. 3A) have a size of 2 dots × 2 dots at 600 dpi. Since the size of one dot at 600 dpi is 0.0423 mm, one side of a dot for information expression (the minimum square in FIG. 3A) is 84.6 μm (= 0.0423 mm × 2). The larger the dot for information expression, the more likely it is to be noticeable. Therefore, it is preferable that the dot is as small as possible. However, if it is too small, printing with a printer becomes impossible. Therefore, the above values larger than 50 μm and smaller than 100 μm are employed as the size of dots for information expression. However, the above value 84.6 μm is a numerical value to the last, and is about 100 μm in the actually printed toner image. In the present specification, the term “dot” refers to a dot for information expression, not a dot that means the minimum point constituting an image unless otherwise specified.

Next, a code block composed of such unit patterns will be described. FIG. 3B shows an example of the layout of the code block. Here, not the image but the code arrangement immediately before being replaced by the pattern image is shown. That is, a unit pattern as shown in FIG. 3A (any one of 36 unit patterns) is arranged in the smallest square (hereinafter referred to as “unit block”) in FIG. Will be formed.
In the layout of FIG. 3B, the synchronization code is arranged in one unit block at the upper left of the code block. Further, the X position code is arranged in the four unit blocks on the right side of the unit block in which the synchronization code is arranged, and the Y position code is arranged in the four unit blocks on the lower side of the unit block in which the synchronization code is arranged. . Furthermore, identification codes are arranged in 16 (= 4 × 4) unit blocks surrounded by unit blocks in which these position codes are arranged.

Here, encoding of identification information will be described.
When encoding identification information, the bit string which comprises identification information is divided | segmented into a some block in order to perform RS encoding. Although there are several methods for encoding, RS encoding is suitable in this embodiment. This is because the RS code is a multi-value coding method, and in this case, the value represented by the unit block corresponds to the multi-value of the RS code. For example, when 5-bit information is expressed by one unit block, the 60-bit identification information is divided into 12 blocks having a block length of 5 bits. If an RS code capable of correcting two blocks of errors is employed, the code length is 16 blocks, which can be accommodated in a unit block in which the identification code in the code block of FIG. Note that the encoding method is not limited to the RS code, and other encoding methods such as a BCH code may be used.

Subsequently, encoding of position information will be described.
For encoding the position information, an M-sequence code, which is a kind of pseudo-random sequence, is used. Here, the M sequence refers to a sequence having the longest period among a shift register having a certain length and a code sequence generated by feedback. When K is the number of stages in the shift register, the sequence length of the M sequence is 2 ^K −1. Arbitrary consecutive K bits extracted from the M sequence have a property that they do not appear at other positions in the same M sequence. Therefore, the position information is encoded using this property.
By the way, in the present embodiment, a necessary M-sequence order is obtained from the length of position information to be encoded, and an M-sequence is generated. However, if the length of the position information to be encoded is known in advance, it is not necessary to generate the M sequence each time. That is, a fixed M sequence may be generated in advance and stored in a memory or the like.
For example, it is assumed that an M sequence (K = 13) having a sequence length of 8191 is used. In this case, since the position code is also embedded in units of 5 bits, 5 bits are taken out from the M sequence having a sequence length of 8191 and blocked.

  In this specification, the identification information and the position information are clearly distinguished and used for the sake of simplicity. However, there is a technique in which a wide range of position information is prepared, the position information is cut out and embedded from different ranges for each medium, and the medium is identified by the difference in position information. Therefore, in such a method, it is assumed that the position information has a function for identifying the medium, and the position information is also considered as the identification information.

Next, the configuration of the identification information server 30 will be described.
FIG. 4 is a block diagram illustrating an example of a functional configuration of the identification information server 30. As illustrated in FIG. 4, the identification information server 30 includes a reception unit 31, an identification information management unit 32, an identification information storage unit 33, a display information generation unit 34, and a transmission unit 39.
The receiving unit 31 receives an identification information issue request from the document server 20. The receiving unit 31 receives medium identification information and handwriting information from the terminal device 50 when writing is performed on the print document. Here, in the present embodiment, the medium identification information and the handwriting information are received from the terminal device 50, and when the display of the handwriting information is instructed, the medium identification information and the handwriting information are obtained from the document server 20. A receiving unit 31 is provided as an example of receiving means for receiving.

When there is a request for issuing identification information, the identification information management unit 32 issues the identification information without duplication, and stores the document ID and print settings specified at that time in association with the identification information. In response to designation of identification information, a document ID and print settings corresponding to the identification information are extracted.
The identification information storage unit 33 stores the identification information in the used / unused state, the document ID of the electronic document printed on the medium to which the identification information is added, and the electronic document printed on the medium to which the identification information is printed. It is a database that stores print settings in association with each other.
The display information generation unit 34 generates display information for displaying the handwriting information based on the information acquired from the document server 20 when the display of the handwriting information is instructed. As this display information, for example, data serving as a source for generating an image to be displayed on the terminal device 50 is generated.

  The transmission unit 39 transmits identification information issued in response to a request from the document server 20 to the document server 20. In addition, when writing on a print document is performed, medium identification information and handwriting information are transmitted to the document server 20. Further, when the display of handwriting information is instructed, the display information is transmitted to the terminal device 50. Here, in the present embodiment, a transmission unit 39 is provided as an example of a transmission unit that transmits medium identification information and handwriting information.

Next, the digital pen 60 will be described. Here, an outline of the functional configuration of the digital pen 60 will be described, and details of the configuration of the digital pen 60 will be described later.
FIG. 5 is a diagram illustrating an outline of a functional configuration of the digital pen 60. As shown in FIG. 5, the digital pen 60 includes a control circuit 61 that controls the operation of the entire pen. In addition, the control circuit 61 includes an image processing unit 61a that processes the read code image, and a data processing unit 61b that extracts identification information and position information from the processing result in the image processing unit 61a.
The control circuit 61 is connected to a writing pressure detection switch 62 that detects a writing operation by the digital pen 60 by pressure (writing pressure) applied to the pen tip 69 and sets the digital pen 60 to an operating state. Further, an infrared LED 63 (an example of an emitting unit) that irradiates (emits) infrared light onto the medium, and an infrared CMOS (Complementary Metal Oxide Semiconductor) 64 (a light receiving unit) that reads a code image by detecting reflected light. One example) is also connected. Furthermore, an information memory 65 for storing identification information and position information, a communication circuit 66 for communicating with an external device, a battery 67 for driving a pen, and pen identification information (pen ID) are stored. A pen ID memory 68 is connected.

A functional configuration realized in the control circuit 61 will be described in detail. FIG. 6 is a block diagram illustrating an example of a functional configuration of the control circuit 61. In FIG. 6, an example of the functional configuration is shown separately for the image processing unit 61 a and the data processing unit 61 b in the control circuit 61.
As illustrated in FIG. 6, the image processing unit 61 a includes an image acquisition unit 631 and a dot array generation unit 632. The data processing unit 61 b includes a code array generation unit 633, an identification information acquisition unit 634, a position information acquisition unit 635, a handwriting information generation unit 636, and a transmission unit 639.

The image acquisition unit 631 acquires a code image read from the print document by the infrared CMOS 64. Moreover, the noise contained in a code image is removed as needed.
The dot array generation unit 632 generates a dot array with reference to the dot positions in the code image. That is, on a two-dimensional array, for example, “1” is stored at a position where there is a dot and “0” is stored at a position where there is no dot, thereby replacing the dot detected as an image with digital data. Then, this two-dimensional array is output as a dot array.

  The code array generation unit 633 detects a block corresponding to the unit pattern in the code block on the dot array. Specifically, a frame having the same shape and size as the block in which the unit pattern is arranged is moved on the dot array, and the frame is fixed at a position where the number of dots in the frame becomes equal. For example, if the unit pattern of FIG. 3A is used, a frame having a size corresponding to 3 dots × 3 dots is moved, and the frame is fixed at a position where the number of dots included in the frame is 2. Then, a code array is generated that stores code values determined from dot positions in each block delimited by the frame. When this code array is generated, the position of the synchronization code is specified by searching for a code value of a predetermined synchronization code.

The identification information acquisition unit 634 detects the identification code based on the position of the synchronization code from the code array. Then, the identification code is decoded using the parameters used in the RS encoding process at the time of image generation, and identification information is acquired.
The position information acquisition unit 635 detects a position code with reference to the position of the synchronization code from the code array. Then, an M-sequence partial sequence is extracted from the position code, the position of this partial sequence in the M-sequence used at the time of image generation is referenced, and a value obtained by correcting this position with an offset using a synchronization code is acquired as position information. The reason for correcting with the offset is that a synchronization code is arranged between the position codes.

The handwriting information generation unit 636 generates handwriting information by connecting the position information acquired by the position information acquisition unit 635. Here, the handwriting information includes at least data obtained by digitizing the locus of the pen tip of the digital pen 60, but may include other information. Information other than the locus of the pen tip includes, for example, information on the color set for the pen when writing, information on writing pressure, and the like.
The transmission unit 639 transmits the identification information acquired by the identification information acquisition unit 634, the position information acquired by the position information acquisition unit 635, and the handwriting information generated by the handwriting information generation unit 636 to the communication circuit 66, thereby performing communication. Information transmission to the device 70 is realized.

  In the digital pen 60, first, the infrared LED 63 irradiates the medium with infrared light, and the infrared CMOS 64 receives the reflected light to read the code image. Then, the image acquisition unit 631 acquires the read code image. At that time, if noise is included in the code image, it is removed. Next, the dot array generation unit 632 converts the dot positions included in the code image into digital data, and generates a dot array. Then, the code array generation unit 633 detects a block from the dot array, and generates a code array that stores a code value for each block. Then, the position of the synchronization code is specified in the code array. Thereafter, the identification information acquisition unit 634 detects the identification code based on the position of the synchronization code, decodes it, and acquires the identification information. Further, the position information acquisition unit 635 detects the position code based on the position of the synchronization code, decodes this, and acquires the position information. Then, the handwriting information generation unit 636 generates handwriting information by connecting the position information. Then, the transmitting unit 639 transmits these pieces of information to the identification information server 30 via the communication device 70 and the terminal device 50.

Next, various processes performed on the electronic document in the handwriting information management system of the present embodiment will be described.
[Print document generation processing]
FIG. 7 is a sequence diagram illustrating an example of an operation when a print document is generated in the handwriting information management system.
First, the user transmits an instruction to print an electronic document from the terminal device 10 to the document server 20 (step 101). At that time, the terminal device 10 transmits an electronic document to be printed, identification information (document ID) of the electronic document, and print settings designated by the user. Here, the print settings include the page to be printed, the number of copies, the size of the paper that is the medium, the enlargement / reduction ratio, N-up (printing that allocates N pages of the electronic document to one page of the medium), and the size of the margin area. Including settings such as.

The document server 20 receives an electronic document print instruction from the terminal device 10 (step 201). The electronic document to be printed included in the print instruction is sent to the electronic document management unit 23, and the electronic document management unit 23 registers the electronic document in the document / handwriting information storage unit 25 in association with the document ID (step 202). ).
Further, the document server 20 transmits the document ID and print setting of the electronic document instructed to be printed to the identification information server 30 (step 203). Here, for example, a URL (Uniform Resource Locator) may be used as the document ID, but other information may be used as long as the electronic document can be uniquely identified.
Thereby, the identification information server 30 receives the document ID and the print setting (step 301). Then, the identification information management unit 32 that manages the medium identification information acquires unused medium identification information from the identification information storage unit 33 (step 302). Here, the number of pieces of medium identification information to be extracted is determined according to print settings. That is, basically, the number of pieces of medium identification information obtained by multiplying the number of pages to be printed by the number of copies is extracted. However, if N-up printing is specified in the print setting information, this is also taken into consideration. For example, when printing 5 copies of a 10-page electronic document by 2-up printing, 25 (= 10 ÷ 2 × 5) pieces of medium identification information are extracted.
Next, the identification information server 30 associates the identification information, the document ID, and the print settings and registers them in the identification information storage unit 33 (step 303). Then, the identification information server 30 transmits the identification information to the document server 20 (step 304).

Thereby, the document server 20 receives the identification information (step 204). Then, a code image representing the identification information and the position information is generated (step 205).
That is, in the document server 20, the receiving unit 21 receives the medium identification information. Then, the reception unit 21 passes the received medium identification information to the identification information acquisition unit 22. Then, the identification information acquisition unit 22 first passes the acquired medium identification information to the identification code generation unit 27a, and the identification code generation unit 27a encodes the medium identification information using the method described above to generate an identification code. .
In addition, the position code generation unit 27b receives print settings from the reception unit 21, encodes position information in a range corresponding to the print settings using the above-described method, and generates a position code.
Then, the code arrangement unit 27c arranges the medium identification code and the position code according to a predetermined layout, and the code image generation unit 27e converts the image into an image using the pattern image stored in the pattern image storage unit 27d. A code image is generated by.

Thereafter, in the document server 20, the document image generation unit 26 generates a document image of the electronic document (step 206). At that time, the document image generation unit 26 receives the document ID acquired by the identification information acquisition unit 22 in step 201, and reads an electronic document to be printed from the document / handwriting information storage unit 25 based on the document ID. In step 201, the print setting acquired by the identification information acquisition unit 22 is received, and a document image is generated based on the print setting.
Then, the image composition unit 28 synthesizes the code image generated in step 205 and the document image generated in step 206 to generate a composite image (step 207).
Thereafter, the composite image is transferred to the transmission unit 29, and the transmission unit 29 transmits a print command for the composite image to the image forming apparatus 40 (step 208). Here, the composite image print command is transmitted, for example, in a PDL format in which the content to be printed as a code image is set as a PDL command to a PDL (Page Description Language) file including a sequence of print commands for document images. .

  The image forming apparatus 40 receives the composite image (document image and code image of the electronic document) from the document server 20 (step 401). Then, the image forming apparatus 40 develops the document image into an image using Y (yellow), M (magenta), and C (cyan) (step 402). Next, the document image is formed using C, M, and Y toners, and the code image is formed using K (black including carbon) toner (step 403).

In the above-described example, the identification information server 30 simply issues the identification information, and the document server 20 generates a code image including the identification information and instructs the image forming apparatus 40 to form an image. However, the identification information server 30 may generate a code image and instruct the image forming apparatus 40 to form an image.
Further, a configuration in which the code image is generated by the image forming apparatus 40 may be adopted. In that case, the document server 20 or the identification information server 30 adds the identification information to the PDL generated from the electronic document and transmits it to the image forming apparatus 40, and the image forming apparatus 40 generates a code image including the identification information. It will be.

  In the above example, the configuration in which the database (identification information storage unit 33) configured by associating the identification information, the document ID, and the print setting is placed in the identification information server 30 has been described. This is because placing such a database on a sharable device (identification information server 30) makes it possible to handle multiple users and ensure the security of electronic documents using server access control technology. However, such a configuration is not necessarily employed, and a configuration in which the above database is placed in the terminal device 10 or the document server 20 may be employed.

In the image forming apparatus 40 described above, the code image is formed using K (black containing carbon) toner. This is because the K toner has a larger amount of infrared light absorption than the C (cyan), M (magenta), and Y (yellow) toner, and the digital pen 60 can easily read the code image. is there. However, the code image can also be formed using special toner.
Here, as the special toner, an invisible toner having a maximum absorption rate of 7% or less in the visible light region (400 nm to 700 nm) and an absorption rate of 30% or more in the near infrared region (800 nm to 1000 nm) is exemplified. . Here, “visible” and “invisible” are not related to whether they can be recognized visually. “Visible” and “invisible” are distinguished depending on whether or not an image in a printed document can be recognized by the presence or absence of color development due to absorption of a specific wavelength in the visible light region. Also, “invisible” includes those that have some color developability due to absorption of a specific wavelength in the visible light region but are difficult to be recognized by human eyes.

  Here, the code image is combined with the image of the electronic document and printed. However, the code image may be printed on white paper (notebook, tag, etc.). In that case, the document ID is not included in the print request received in step 201, the identification information is not associated with the document ID and the print setting in step 303, and the generation of the document image in step 206 is not executed. What should I do?

[Handwriting information registration process]
Next, an operation when the digital pen 60 generates handwriting information and registers it in the document server 20 will be described.
As described above, in the digital pen 60, the identification information acquisition unit 634 acquires identification information. In addition, the position information acquisition unit 635 acquires position information. Further, the handwriting information generation unit 636 connects the position information to each other to generate handwriting information. Then, the transmission unit 639 transmits the identification information and handwriting information to the identification information server 30 via the communication device 70 and the terminal device 50. The identification information server 30 registers the handwriting information in the document server 20.

FIG. 8 is a sequence diagram illustrating an example of operations of the identification information server 30 and the document server 20 when registering handwriting information.
In the identification information server 30, first, the receiving unit 31 receives identification information and handwriting information from the digital pen 60 (step 311). Next, the identification information and handwriting information are passed to the identification information management unit 32, and the identification information management unit 32 takes out the document ID associated with the passed identification information from the identification information storage unit 33. Then, the document server 20 (the document server 20 in which the electronic document specified by the document ID exists) is determined as the transmission destination of the identification information and handwriting information received in step 311 (step 312). If the document ID is not associated with the identification information in the identification information storage unit 33, it is considered that the identification information is assigned to a blank sheet (note or tag). In that case, the document server 20 that manages the handwriting information for the white paper may be determined as the transmission destination.
Thereafter, the identification information and the handwriting information are transferred to the transmission unit 39, and the transmission unit 39 transmits the identification information and the handwriting information to the document server 20 determined as the transmission destination in Step 312 (Step 313).

  Thereby, in the document server 20, the receiving part 21 receives identification information and handwriting information (step 211). Then, the reception unit 21 passes the received identification information to the handwriting information management unit 24. Then, the handwriting information management unit 24 stores the identification information and the handwriting information in association with each other in the document / handwriting information storage unit 25 (step 212).

By the way, in the handwriting information management system of the present embodiment, the document server 20 manages electronic documents and handwriting information, and the identification information server 30 generates / manages identification information for uniquely identifying a medium. . However, various variations can be considered as to which apparatus performs these processes. For example, the process of generating / managing identification information may be performed by the document server 20, or may be performed by the terminal device 50 or the image forming apparatus 40. Further, the code image may be generated by the image forming apparatus 40.
Therefore, these processes can be generalized as being performed by the computer 90 as a general-purpose device. Accordingly, the hardware configuration of the computer 90 will be described on the assumption that the terminal device 10, the document server 20, the identification information server 30, the image forming device 40, and the terminal device 50 that constitute the handwriting information management system are configured by the computer 90. deep.

FIG. 9 is a diagram illustrating a hardware configuration of the computer 90.
As shown in FIG. 9, the computer 90 includes a CPU (Central Processing Unit) 91 that is a calculation means, a main memory 92 that is a storage means, and a magnetic disk device (HDD: Hard Disk Drive) 93. Here, the CPU 91 executes various software such as an OS (Operating System) and an application, and realizes each function described above. The main memory 92 is a storage area for storing various software and data used for execution thereof, and the magnetic disk device 93 is a storage area for storing input data for various software, output data from various software, and the like. .
Further, the computer 90 includes a communication I / F 94 for performing communication with the outside, a display mechanism 95 including a video memory and a display, and an input device 96 such as a keyboard and a mouse.
The program for realizing the present embodiment can be provided not only by communication means but also by storing it in a recording medium such as a CD-ROM.

Next, the configuration of the digital pen 60 will be described in detail.
10A and 10B are diagrams for explaining the overall configuration of the digital pen 60. FIG. 10A is an external perspective view of the digital pen 60, FIG. 10B is an external perspective view of the cap portion 610 of the digital pen 60, and FIG. 2 is an external perspective view of a pen body 620 of the digital pen 60. FIG. As shown in FIG. 10, the digital pen (electronic writing instrument) 60 according to the present embodiment includes a pen main body (electronic writing instrument main body) 620 and a cap 610 that is detachable from the pen main body 620. ing.

  Next, FIG. 11 is a cross-sectional view illustrating the configuration of the pen body 620. As shown in the figure, the pen body 620 includes a housing 621, a writing detection function unit 622, a code image detection unit 623, an operation display unit 624, a cap position detection function unit 625, and a control circuit unit 626.

The housing 621 constitutes an outer wall of the pen main body 620 and supports various functional units arranged on the pen main body 620. Here, the housing 621 has a shape in which the tip side where the pen tip 69 is disposed is tapered. Hereinafter, in this specification, the side on which the pen tip 69 is disposed may be referred to as a front end side, and the side opposite to the side on which the pen tip 69 is disposed may be referred to as a rear end side.
The writing detection function unit 622 is a functional unit that detects the writing being performed by detecting the writing pressure applied to the medium when writing on the medium is performed. The writing detection function unit 622 includes the pen tip 69 and the writing pressure detection switch 62 shown in FIG.
The code image detection unit 623 is a functional unit that irradiates a medium with light having a predetermined wavelength (for example, infrared light) and detects a code image printed on the medium based on reflected light from the medium. The code image detection unit 623 includes the infrared LED 63 and the infrared CMOS 64 shown in FIG.

An operation display unit 624 that functions as an operation unit and a display unit is a functional unit that instructs execution of a specific process based on a code image read from a medium. The operation display unit 624 is also a functional unit that performs an operation state of the digital pen 60 by displaying a specific color.
The cap position detection function unit 625 is a function unit that detects whether or not the cap unit 610 is attached to a predetermined position of the pen body unit 620.
The control circuit unit 626 is a functional unit that executes various processes when operating the digital pen 60. Further, the functional unit transmits identification information, handwriting information, and the like to the terminal device 50 via the communication device 70 (see FIG. 1). The control circuit unit 626 includes the control circuit 61 including the image processing unit 61 a and the data processing unit 61 b illustrated in FIG. 5, the information memory 65, the communication circuit 66, the battery 67, and the pen ID memory 68.

Here, the code image detection unit 623 will be described in detail.
FIG. 12 is a diagram illustrating the code image detection unit 623. As shown in the figure, the code image detection unit 623 includes an infrared LED 63 (see also FIG. 5) that irradiates infrared light on the medium, a diffusion plate 623a that diffuses infrared light emitted from the infrared LED 63, An infrared CMOS 64 (see also FIG. 5) for reading a code image on the medium by detecting reflected light from the medium is provided. Here, the infrared CMOS 64 is disposed along the axial direction of the pen body 620. For this reason, the diameter of the pen main body 620 (housing 621) can be reduced as compared with the case where the infrared CMOS 64 is arranged in a relationship orthogonal to the axial direction of the pen main body 620.

  Further, as an imaging optical system for imaging reflected light from the medium on the infrared CMOS 64, an IR (Infrared) filter 623b that mainly transmits infrared light, an imaging lens 623c, and a lens barrel that supports the imaging lens 623c. 623d, a prism 623e that guides the optical path of infrared light that has passed through the imaging lens 623c by 90 ° and guided to the infrared CMOS 64, a holder 623f that supports the lens barrel 623d and the prism 623e, and a gap between the prism 623e and the infrared CMOS 64 Is provided with a spacer 623g for keeping the value at a predetermined value.

  In the code image detection unit 623, the infrared light emitted from the infrared LED 63 is diffused by the diffusion plate 623a and then irradiates the medium surface. The infrared light reflected from the medium is collected by the imaging lens 623c after light other than the infrared light is excluded by the IR filter 623b, and is folded back toward the infrared CMOS 64 by the prism 623e. And imaged on the infrared CMOS 64. Then, the code image on the medium is read by the infrared CMOS 64. The code image read by the infrared CMOS 64 is sent to the control circuit 61 (see FIG. 5) of the control circuit unit 626.

Next, the operation display unit 624 will be described.
FIG. 13 is a diagram for explaining the operation display unit 624. As shown in the figure, the operation display unit 624 includes a substrate 624a, a changeover switch 624b provided on the substrate 624a, an operation button 624c that receives a user operation from the outside of the housing 621, a first light emitting LED 624f, Two light emitting LEDs 624g are provided. The substrate 624a is fixed to the housing 621 by a fixing screw 624k. Further, the operation button 624c includes a contact portion 624d that comes into contact with the substrate 624a when the operation button 624c is pressed by the user by a predetermined amount.
The changeover switch 624b is a switching member that performs switching setting from an off state to an on state by performing one switching. And by setting to an ON state, the signal which instruct | indicates execution of the specific process based on the code image read from the medium is output. In the present embodiment, when the changeover switch 624b is set to the on state, a signal that instructs a link to a predetermined information source associated with the identification information and the position information included in the code image is transmitted to the control circuit unit 626. To the control circuit 61 (see FIG. 5).

When the user presses the operation button 624c, the operation button 624c is pressed down against the repulsive force of the changeover switch 624b itself, and the changeover switch 624b is switched from the off state to the on state. As a result, a signal instructing a link to a predetermined information source associated with the identification information and the position information included in the code image is sent to the control circuit 61 of the control circuit unit 626. When the operation button 624c is pressed by the user, the operation button 624c is supported by the changeover switch 624b and supported by the contact portion 624d that contacts the substrate 624a.
Thereafter, when the user depresses the operation button 624c, the operation button 624c is returned to the original position by the repulsive force from the changeover switch 624b, and the changeover switch 624b is switched from the on state to the off state. As a result, the link to the predetermined information source is released.

  Further, the first light emitting LED 624f and the second light emitting LED 624g provided on the substrate 624a express the operation state of the digital pen 60 by displaying a specific color. For example, each of the first light emitting LED 624f and the second light emitting LED 624g changes in emission color between red and green according to the operation state of the digital pen 60. For example, the first light-emitting LED 624f and the second light-emitting LED 624g emit green light when the digital pen 60 is in an operating state (power-on state). Further, when the operation button 624c is operated and the changeover switch 624b enters a state of instructing a link to a predetermined information source, the second light emitting LED 624g emits red light. At that time, light emitted from the first light-emitting LED 624f and the second light-emitting LED 624g is displayed outside the housing 621 by the first waveguide member 624h and the second waveguide member 624j, respectively.

Next, the writing detection function unit 622 and the cap position detection function unit 625 will be described. Further, the cap unit 610 will be described.
Here, FIG. 14 is a diagram illustrating the writing detection function unit 622, the cap position detection function unit 625, and the cap unit 610.
As shown in the drawing, the writing detection function unit 622 includes a pen tip 69, a pen tip support member 622a, a pen tip fastening member 622b, a biasing spring 622c, a joint member 622d, and a writing pressure detection switch 62.

  A pen tip 69 as an example of a writing unit is configured by, for example, a ballpoint pen, and draws characters, figures, and the like on a medium using a color material such as ink. Here, the tip of the pen tip 69 is disposed substantially on the axis of the pen body 620 (housing 621) (see line AA in FIG. 11). With such an arrangement, it is possible to perform a writing operation similar to a normal pen, and the user can operate the digital pen 60 without feeling uncomfortable. Further, the pen tip 69 is disposed at a predetermined angle with respect to the axis of the pen body 620 and is disposed on one side with the axis of the pen body 620 as a boundary. An infrared LED 63 and the like are housed on the other side of the axis. When the pen tip 69 is tilted as described above, a space for housing the infrared LED 63 and the like is formed behind the tip of the pen tip 69 (side the pen tip 69). As a result, the infrared LED 63 and the like can be brought closer to the axial center side of the pen body 620, and the diameter of the pen body 620 can be reduced.

  The pen tip support member 622a supports the pen tip 69 so as to be movable along the pen axis p. The pen tip support member 622a includes a front end side support member 622a1 and a rear end side support member 622a2. The pen tip fastening member 622b is housed in a gap formed between the front end side support member 622a1 and the rear end side support member 622a2. Here, the front end side support member 622a1 restricts movement of the pen tip fastening member 622b toward the front end side, and the rear end side support member 622a2 restricts movement of the pen tip fastening member 622b toward the rear end side.

  The pen tip fastening member 622b is formed in a ring shape by an elastic body such as rubber. The pen tip 69 is held by holding the pen tip 69 with its own elastic force, and the pen tip 69 is prevented from falling off the pen tip support member 622a due to its own weight. Here, when the tip of the pen body 620 faces downward, the frictional force A acting on the pentip 69 from the pentip fastening member 622b and the acting force B acting on the pentip 69 due to gravity have the following relationship. ing. Friction force A> acting force B In addition, the weight of the pen tip 69 in this embodiment is about 0.6 g.

  Also, the pen tip fastening member 622b allows the pen tip 69 to be pulled out from the pen tip support member 622a when a pulling force greater than the frictional force by the pen tip fastening member 622b is applied to the pen tip 69 along the pen axis p. To do. Further, when a pressing force greater than the frictional force by the pen tip fastening member 622b is applied, the pen tip 69 is allowed to be attached to the pen tip support member 622a. Thereby, the pen tip 69 can be replaced by applying a predetermined pulling force and pressing force to the pen tip 69. The pen tip fastening member 622b can also be configured to have conductivity. For example, if the housing 621, the pen tip support member 622a, and the like are formed of a metal such as aluminum, static electricity generated by the pen tip 69 or the like can be released to the outside.

  The joint member 622 d transmits the pressure (writing pressure) from the medium acting on the pen tip 69 to the writing pressure detection switch 62. When the pen tip 69 is pressed against the medium by a writing operation or the like, the pen tip 69 moves to the inside of the digital pen 60 along the pen axis p by the pressure applied to the pen tip 69. As a result, the joint member 622d moves against the urging force of the urging spring 622c and the like, and presses the writing pressure detection switch 62. Here, a large-diameter portion 622e having an outer diameter larger than that of other portions is formed at the end of the joint member 622d on the pen tip 69 side, and the large-diameter portion 622e is formed in the housing 621. It is arranged inside the formed groove portion 621a having a predetermined width. Thereby, the moving range (sliding range) of the joint member 622d is limited to the width of the groove 621a formed in the housing 621. The joint member 622d is arranged in a state where the inclination of the pen body 620 with respect to the axis is smaller than the inclination of the pen tip 69. Specifically, they are arranged substantially parallel to each other along the axis of the pen body 620.

  The writing pressure detection switch 62 receives a pressing force from the joint member 622d when pressure is applied to the pen tip 69 by a writing operation or the like. As a result, the pen pressure detection switch 62 is turned on, and the digital pen 60 is set to the operating state. In addition, the writing pressure detection switch 62 in this embodiment is configured by a limit switch having an operating piece 62a. Here, in this embodiment, the imaging lens 623c, the lens barrel 623d, the prism 623e, the infrared CMOS 64, and the support member that supports these members are provided on the distal end side, and the space on the distal end side is not sufficient. In this case, if the pen pressure detection switch 62 is disposed on the side of the imaging lens 623c, the lens barrel 623d, the prism 623e, the infrared CMOS 64, etc., the pen body 620 (housing 621) is moved outward. It will swell. For this reason, the pen pressure detection switch 62 is arranged on the rear end side with respect to these members.

In this case, if a longer pen tip 69 is used and the pen tip 69 directly presses the writing pressure detection switch 62, it is necessary to provide the writing pressure detection switch 62 on the outer side than the position shown in FIG. In this case, the pen main body 620 swells outward. Therefore, in the present embodiment, the joint member 622d having a smaller inclination than the pen tip 69 is disposed between the pen tip 69 and the pen pressure detection switch 62, and the shape from the pen tip 69 to the pen pressure detection switch 62 is “C”. It is in the shape of a letter. Thereby, the pen pressure detection switch 62 can be disposed on the side close to the axis of the pen body 620, and the pen body 620 can be reduced in diameter.
The biasing spring 622c biases the joint member 622d toward the pen tip 69. Thereby, when the writing operation or the like is not performed, the large diameter portion 622e of the joint member 622d is located closest to the pen tip 69 in the movement range limited by the groove portion 621a of the housing 621. As a result, the pen pressure detection switch 62 is turned off, and the digital pen 60 is set to the operation stop state.

Next, the cap position detection function unit 625 will be described. As described above, the cap position detection function unit 625 is a function unit that detects whether or not the cap unit 610 is attached to a predetermined position of the pen body unit 620.
The cap position detection function unit 625 includes a substrate 625a, a changeover switch 625b and an operation button 625c provided on the substrate 625a. The substrate 625a is fixed to the housing 621. In addition, the operation button 625 c is fixed to the housing 621 at the end opposite to the axial changeover switch 625 b side of the housing 621. And the edge part by the side of the changeover switch 625b rock | fluctuates by the elasticity of the operation button 625c itself.

  When the cap unit 610 is not attached to the pen body unit 620, the end of the operation button 625c on the changeover switch 625b side is positioned so as to protrude from the outer surface of the housing 621. Further, when the cap unit 610 is mounted on the pen body unit 620 so that the position of the groove 616 provided on the inner peripheral surface of the cap unit 610 matches the position of the operation button 625c, that is, the cap unit 610 is mounted on the pen body unit. When attached to a predetermined position of 620, the end of the operation button 625c on the changeover switch 625b side is positioned so as to protrude from the outer surface of the housing 621. In these cases, the operation button 625c sets the changeover switch 625b to the off state. Then, when the changeover switch 625b is set to the off state, the code image detection unit 623 is set to a state in which the code image on the medium can be read.

  On the other hand, when the cap part 610 is attached to the pen body part 620 in a state where the position of the groove part 616 provided on the inner peripheral surface of the cap part 610 does not coincide with the position of the operation button 625c, that is, the cap part 610 is attached to the pen body part. When attached to 620 but not at a predetermined position, the end of the operation button 625c on the changeover switch 625b side is positioned so as not to protrude from the outer surface of the housing 621 by the inner peripheral surface of the cap portion 610. . In this state, the operation button 625c sets the changeover switch 625b to the on state. Then, when the changeover switch 625b is set to the on state, the code image detection unit 623 is set to a state in which the code image on the medium cannot be read.

Next, the cap part 610 will be described.
The cap part 610 includes a cap main body part 611, a clip (clip piece) 612, a fixing screw 613, a filter 614, a surrounding member 615, and a groove part 616.
The cap main body 611 is formed in a substantially cylindrical shape and includes openings on one end side and the other end side. Here, the tip end side of the pen main body 620 is inserted into the opening (insertion opening) on the one end side of the cap main body 611. Further, the cap main body 611 is formed to be tapered toward the tip end side (side on which the surrounding member 615 is disposed).

  As shown in the figure, the clip 612 includes a facing piece (facing portion) 612a that is disposed along the axial direction of the cap body portion 611 and is opposed to the outer peripheral surface of the cap body portion 611, and one end portion of the facing piece 612a. And a hypotenuse portion 612b that is connected to the side and arranged in a relationship intersecting the arrangement direction of the opposing piece 612a. Here, the hypotenuse part 612b is disposed with a predetermined inclination with respect to the axial center (axial direction) of the cap body part 611 (cap part 610). Further, the oblique side portion 612b in the present embodiment also functions as an inclined portion having one end on the side close to the opening (insertion opening) in the cap body 611 and the other end on the side away from the opening (insertion opening). Yes. And in this embodiment, the said opposing piece (opposing part) 612a is connected to this one end side.

  Furthermore, the clip 612 includes a flat portion 612c that is disposed in a relationship that intersects the direction in which the oblique side portion 612b is disposed and that is disposed in a relationship that is substantially orthogonal to the axis of the cap body portion 611. Further, the clip 612 allows the oblique side portion 612b and the flat portion 612c to be irradiated with the infrared light from the infrared LED 63 to the medium, and the opening 612e that allows the reflected light from the medium to be received by the infrared CMOS 64. It has. Here, the opposing piece 612a sandwiches an object to be placed, which is disposed in a gap formed between the cap body 611 and the cap body 611, and fixes the digital pen 60 to the object to be placed. In the present embodiment, the opening 612e is formed so as to penetrate in the thickness direction of the clip 612. The opening 612e functions as a clip-side passing portion that allows infrared light and reflected light from the medium to pass therethrough.

The filter 614 is attached so as to close the opening 612e provided in the clip 612, and suppresses entry of dust, moisture and the like into the cap 610. The filter 614 is made of a material that can transmit the infrared light and the reflected light.
The surrounding member 615 is provided in a state of projecting from the cap portion 610 at an end portion of the cap portion 610 opposite to the end portion on the opening side where the pen body portion 620 is inserted. The surrounding member 615 is attached to the clip 612 and is attached so as to close the opening 612e. The pen tip 69 is attached so as to be able to advance and retreat (slide and displace) along the pen axis p. Furthermore, the cap part 610 is provided to be displaceable toward the inner side. The surrounding member 615 can be regarded as a transmission member that transmits pressure from the medium to the pen tip 69 (writing portion).

  Note that the surrounding member 615 is not advanceable / retractable and can be attached at a fixed position. However, in this case, there is a possibility that the pen tip 69 is pressed by the surrounding member 615 even though the writing operation or the like is not performed, and the writing pressure detection switch 62 is turned on. That is, the writing pressure detection switch 62 may malfunction. Since various members such as the pen tip 69 have manufacturing tolerances and the like, it is assumed that the protruding amount of the pen tip 69 from the housing 621 is different for each digital pen 60. When the protruding amount of the pen tip 69 is large, the pen tip 69 is pressed by the surrounding member 615, and the writing pressure detection switch 62 is turned on although the writing operation or the like is not performed. Therefore, in this embodiment, the surrounding member 615 is attached so as to be able to advance and retreat (displace) as described above.

  The surrounding member 615 is made of an elastically deformable material such as rubber and protects the tip of the pen tip 69. Further, since the surrounding member 615 is configured by an elastically deformable member, it can be easily deformed and can be easily attached to the clip 612 by snap fitting or the like. The encircling member 615 receives and displaces the pressure from the medium when the code image is read without the writing operation, and transmits the pressure from the medium to the pen tip 69.

  The groove portion 616 is formed along the axial direction of the cap body portion 611 within a predetermined range in the circumferential direction of the inner peripheral surface on the rear end portion side of the cap body portion 611. When the cap unit 610 is disposed at a predetermined position of the pen body unit 620, the end of the operation button 625c on the changeover switch 625b side is located in the groove 616, and the changeover switch 625b is set to an off state. Further, when the cap unit 610 is not disposed at a predetermined position of the pen body unit 620, the end of the operation button 625 c on the changeover switch 625 b side is pressed against the inner peripheral surface of the cap body unit 611. As a result, the changeover switch 625b is set to an on state.

Here, the infrared LED 63 is arranged so that the optical axis (see arrow B in the figure) of the emitted infrared light is inclined with respect to the axis of the pen body 620 (see line AA in FIG. 11). Has been. In other words, the infrared LED 63 is arranged in a state having a predetermined angle with respect to the axis of the pen body 620. In addition, the infrared LED 63 is disposed so as to be inclined substantially in the same direction as the direction in which the pen tip 69 is inclined, and is disposed so as to be substantially along the pen tip 69. When the infrared LED 63 is inclined and disposed, for example, the dead space generated between the rear end side of the infrared LED 63 and the pen tip 69 can be reduced, and the diameter of the pen body 620 can be reduced by this amount. Can be planned.
Further, for example, as shown in FIG. 15A, an infrared LED 63 is provided so that the optical axis of the infrared light and the axis of the pen main body 620 (see the AA line in the figure) are parallel to each other. In this case, in order to appropriately receive the reflected light from the medium, it is necessary to dispose the prism 623e and the like outside as shown in FIG. On the other hand, when the infrared LED 63 is inclined and disposed as in the present embodiment, the prism 623e and the like can be disposed on the inner side as shown in FIG. As a result, it is possible to reduce the diameter of the pen body 620 (housing 621).

  For example, when the thickness of the housing 621 (see FIG. 14) is small, light from the outside may pass through the housing 621 and light other than the reflected light from the medium may be received by the infrared CMOS 64. There is. In addition, infrared light emitted from the infrared LED 63 or reflected light from the medium may be irregularly reflected on the inner peripheral surface of the housing 621. Therefore, in the present embodiment, a black coating that can suppress light transmission and irregular reflection is applied to the inner peripheral surface of the housing 621. This coating is not limited to the entire inner peripheral surface of the housing 621, and can be performed only on the front end portion (sensing location) of the housing 621 that can affect the light reception of the infrared CMOS 64. Furthermore, although the color used for coating is desirably black, other colors may be used. Furthermore, the housing 621 itself can be formed in black or the like without being painted. In the present embodiment, black coating is also applied to the inner peripheral surface of the cap main body 611. Here, the coating on the cap main body 611 is not limited to the entire inner peripheral surface, and can be performed only on the tip portion that can affect the light reception of the infrared CMOS 64. Further, the cap main body 611 itself can be formed of black or the like.

Next, the surrounding member 615 and the like will be described in detail.
Here, FIG. 16 is a view for explaining the surrounding member 615, and FIG. 17 is a view showing the distal end portion of the cap portion 610. 16A is a perspective view showing the surrounding member 615 from the front end side, and FIG. 16B is a perspective view showing the surrounding member 615 from the rear end side. FIG. 16C shows the surrounding member 615 when viewed from the direction of arrow E in FIG.

  As shown in FIG. 16, the surrounding member 615 is formed in a substantially cylindrical shape and has a shape in which a part of the side surface is shaved. That is, the surrounding member 615 is formed in a substantially cylindrical shape and includes a flat portion along the axial direction at a part of the side surface. More specifically, as shown in FIGS. 16A and 16B, the surrounding member 615 includes a body portion 615a having a hollow inside in which a tip of the pen tip 69 is accommodated and formed in a substantially cylindrical shape, An abutting portion 615b provided on one end side of the main body portion 615a and against which the tip end portion of the pen tip 69 is abutted, and a first projecting portion 615c arranged around the abutting portion 615b and projecting outward from the main body portion 615a. And.

  The surrounding member 615 includes moving pieces 615f and 615g arranged to face each other at the rear end of the main body 615a. And between the moving piece 615f and the moving piece 615g, the 1st notch part 615d and the 2nd notch part 615e which were formed along the axial direction of the main-body part 615a are provided. For this reason, the moving pieces 615f and 615g can move independently. Furthermore, the surrounding member 615 includes a second projecting portion 615h and a third projecting portion 615j projecting outward from each end of the moving pieces 615f and 615g. Further, as shown in FIG. 16C, the surrounding member 615 includes a first flat portion 615k having a chamfered shape on the outer peripheral surface from the front end side to the rear end side. In addition, the surrounding member 615 includes a second flat portion 615m having a face-cut shape in the moving pieces 615f and 615g from the rear end portion toward the front end portion.

  Here, in order to reduce the diameter of the pen main body 620, it is preferable to arrange the infrared LED 63 as close to the axis of the pen main body 620 as possible. However, when the infrared LED 63 is arranged close to the axis, the infrared light path and the surrounding member 615 may interfere with each other. Therefore, in the present embodiment, a first flat portion 615k is provided in which a part of the encircling member 615 is chamfered, and interference between the optical path of the infrared light and the enveloping member 615 is caused while bringing the infrared LED 63 to the axis. It is preventing. In addition, the surrounding member 615 can also be formed, for example so that a cross section may become a rectangular shape. However, in this case, there is a possibility that the above-described surrounding member 615 may not be successfully advanced / retreated (displaced). Therefore, it is preferable that the surrounding member 615 has a cylindrical basic shape and a flat portion is formed in a part thereof. In other words, it is preferable that the surrounding member 615 is arranged so that its basic shape (main part) is cylindrical and its axis is along the forward / backward direction (displacement direction).

Next, the front end portion of the cap portion 610 will be described with reference to FIG.
As described above, the clip 612 having the oblique side portion 612b and the flat portion 612c is provided on the distal end side of the cap body portion 611. And the said opening part 612e in this embodiment is arrange | positioned from the oblique part 612b to the flat part 612c.
Here, the opening 612e includes a first opening 612n to which the filter 614 (see FIG. 14) is attached, and a second opening 612p to which the surrounding member 615 is attached. However, these openings are not provided independently, but are connected to each other to form a single opening. Thus, when it is set as a single opening part, compared with the case where an opening part is provided independently, respectively, for example, a shaping die can be constituted at low cost, for example, cap part 610 can be constituted at low cost. it can.

Here, the first opening 612n has a size that does not block the infrared light emitted from the infrared LED 63. In addition, the opening 612e having the first opening 612n as a part thereof is formed in a shape that does not interfere with the infrared light emitted from the infrared LED 63. Note that the infrared light transmission region in the filter 614 is indicated by a broken line in the figure. Further, the first opening 612n is disposed at the center in the width direction of the oblique side 612b. For this reason, the hypotenuse part 612b in this embodiment will be in the state provided with the side piece part 612t on both sides of the 1st opening part 612n.
The second opening 612p has a shape that follows the cross-sectional shape of the surrounding member 615, and has a substantially dome shape with the first opening 612n side as a bottom.

  Here, the surrounding member 615 is inserted into the second opening 612p from the rear end side. Then, after the insertion, the second protrusion 615c (see FIG. 16) and the second protrusion 615h, the first protrusion 615c and the third protrusion 615j between the second protrusion 615c and the second protrusion 615j. The edge part in the opening part 612p comes to be located. Thereby, the surrounding member 615 is fixed to the clip 612 (cap portion 610) so as to be able to advance and retreat. Here, in the present embodiment, a protruding portion 612u that protrudes into the opening 612e is provided between the first opening 612n and the second opening 612p. For this reason, the movement of the surrounding member 615 in the direction of the first opening 612n is restricted by the protrusion 612u.

  Next, the fixing structure of the filter 614 will be described. The filter 614 as a light transmission member is fixed to the cap portion 610 without using an adhesive. By fixing without using an adhesive, it is possible to suppress deterioration of the filter 614 due to a solvent or the like contained in the adhesive.

Here, FIG. 18 shows a cross section taken along line DD of FIG.
As shown in the figure, the clip 612 in the present embodiment includes a protruding portion 612w protruding inward of the first opening 612n on the inner peripheral wall 612v facing the first opening 612n.
On the other hand, the cap main body 611 includes an opening 611a, and includes a first rib 611b, a second rib 611c, a third rib 611d, and a fourth rib 611e around the opening 611a. These ribs 611b to 611e protrude toward the first opening 612n and enter the inside of the first opening 612n. In addition, each end surface of the first rib 611b to the fourth rib 611e and the side surface 612x of the protruding portion 612w are opposed to each other. The filter 614 is disposed between each end face of the first rib 611b to the fourth rib 611e and the side face 612x. When the clip 612 is fixed to the cap main body 611, the filter 614 is sandwiched between each of the first rib 611b to the fourth rib 611e and the protruding portion 612w, and is fixed to the first opening 612n ( Positioned). In addition, the said opening part 611a in this embodiment functions as a passage part which lets the irradiation light (emitted light) from infrared LED63, and the reflected light from a medium pass.

Furthermore, the fixing structure of the filter 614 will be described. FIG. 19 is an external perspective view for explaining the fixing structure of the filter 614.
As described above, the filter 614 is sandwiched and fixed by each of the first rib 611b to the fourth rib 611e and the protruding portion 612w. As a result, as shown in the figure, the outer surface of the filter 614 is positioned inside the outer surface of the oblique side portion 612b (cap portion 610). In other words, the outer surface of the filter 614 is not disposed on the same plane as the outer surface of the oblique side portion 612b, and is located on the inner side of the outer surface of the oblique side portion 612b. Furthermore, the filter 614 is provided on the inner surface side with respect to the outer surface of the clip 612.

Here, FIG. 20 shows the posture of the digital pen 60 when the code image is read.
When the cap portion 610 is not attached, as shown in FIG. 20A, the pen tip 69 is pressed by the medium, and the pressing force (writing pressure) is applied via the joint member 622d (see FIG. 14). This is transmitted to the pressure detection switch 62, and the writing pressure detection switch 62 is turned on. As a result, the digital pen 60 is brought into an operating state, and infrared light is irradiated from the infrared LED 63, and reflected light from the medium is received by the infrared CMOS 64, and a code image is read from the medium.

  When the operation button 624c is pressed and the pen tip 69 is pressed by the medium, the code image is read from the medium, and the read code image is read to the control circuit 61 (see FIG. 5). A signal is sent to indicate a link to a predetermined information source associated with the identification information and the location information. Thereby, for example, predetermined information associated with the identification information and the position information can be displayed on the display of the terminal device 50 (see FIG. 1). In the configuration of the present embodiment, the code image can be appropriately read when the inclination α of the digital pen 60 with respect to the medium is within a range of 30 ° ≦ α ≦ 150 °.

  On the other hand, in a state where the cap unit 610 is attached to a predetermined position of the pen body unit 620, the surrounding member 615 is pressed by the medium and displaced toward the opening side of the cap unit 610 as shown in FIG. To do. As a result, the pen tip 69 is pressed by the surrounding member 615, and pressure (writing pressure) is transmitted from the surrounding member 615 to the pen tip 69. Thereafter, the pressure is transmitted to the writing pressure detection switch 62 via the pen tip 69 and the joint member 622d, and the writing pressure detection switch 62 is turned on. As a result, the digital pen 60 is brought into an operating state, and infrared light is irradiated from the infrared LED 63 and reflected light from the medium is received by the infrared CMOS 64. When the surrounding member 615 (digital pen 60) is pressed against the medium while the operation button 624c is pressed, the code image is read from the medium and the control circuit 61 (see FIG. 5) is read as described above. Thus, a signal instructing a link to a predetermined information source associated with the identification information and the position information based on the read code image is sent. Therefore, also in this case, for example, predetermined information associated with the identification information and the position information can be displayed on the display of the terminal device 50. In the present embodiment, since the first opening 612n (see FIG. 17) is formed, infrared light is irradiated to the medium without being blocked, and reflected light is also transmitted through the first opening 612n. Light is received by the infrared CMOS 64. In the present embodiment, the pen tip 69 does not directly contact the medium, and the surrounding member 615 contacts the medium, so that the medium is prevented from being soiled.

  In the present embodiment, the code image is generally read while the clip 612 is pressed against the medium and the clip 612 is rubbed against the medium. Here, in this embodiment, the outer surface of the filter 614 is in a state positioned on the inner side of the outer surface of the clip 612 (the oblique side portion 612b). For this reason, generation | occurrence | production of the abrasion etc. in the filter 614 can be suppressed. In the present embodiment, side piece portions 612t are provided on both sides of the first opening 612n (see FIG. 17). For this reason, the posture of the digital pen 60 when pressed against the medium can be stabilized.

In the present embodiment, the clip 612 is formed with a flat oblique side portion 612b. When the digital pen 60 is pressed against the medium with this configuration, generally, the hypotenuse 612b is pressed against the medium as shown in FIG. 5B, and the digital pen 60 is tilted. In this state, infrared light is emitted from the infrared LED 63, and reflected light is received by the infrared CMOS 64. In this state, the opposing piece 612a is disposed below the cap main body 611. In other words, the facing piece 612a is arranged facing downward. For this reason, the visibility of the user at the time of reading the code image can be improved. In the present embodiment, when the oblique side portion 612b is pressed against the medium, the angle α of the digital pen 60 with respect to the medium is 70 °.
Here, the hypotenuse 612b is a guide surface that guides the posture of the digital pen 60 relative to the medium so that the medium is appropriately irradiated with infrared light and the reflected light is appropriately received by the infrared CMOS 64. Can be caught. Further, the oblique side portion 612b can be regarded as a regulation surface that regulates the angle of the digital pen 60 so that the medium is appropriately irradiated with infrared light and the reflected light is appropriately received by the infrared CMOS 64. it can. In addition, it is ergonomically preferable to arrange such a restriction surface so as to be inclined with respect to the axis of the pen main body 620 like the hypotenuse 612b.

  Further, when the cap unit 610 is disposed at a predetermined position of the pen body unit 620 and is set in a state in which the code image on the medium can be read, the pen body unit 620 is sandwiched and the opposing piece 612a is disposed on one side. The operation display unit 624 is disposed on the other side. For this reason, in the state where the oblique side portion 612b is pressed against the medium and the facing piece 612a is disposed below the pen body portion 620, the operation button 624c faces upward as shown in FIG. In addition, the first light emitting LED 624f (see FIG. 13) and the second light emitting LED 624g are also arranged facing upward. Thus, when the code image is read, the operation button 624c is arranged at a position that is easily recognized by the user. Further, when the code image is read, the operation button 624c is disposed at a position with good operability. In addition, the first light-emitting LED 624f and the second light-emitting LED 624g are also arranged at positions that are easily recognized by the user.

  Further, in the present embodiment, when the cap unit 610 is disposed at a predetermined position of the pen body unit 620 and is set in a state where the code image on the medium can be read, the first opening 612n (see FIG. 17) and the infrared LED 63 (see FIG. 14) face each other. In addition, the first opening 612n and the imaging lens 623c (see FIG. 14) are in a facing relationship. That is, the infrared light from the infrared LED 63 can be irradiated to the medium, and the reflected light can be received by the infrared CMOS 64. For this reason, when the cap unit 610 is fixed at a predetermined position from a state where the cap unit 610 is fixed at a position other than the predetermined position, the first opening 612n is also at an appropriate position at which the code image can be read at the same time. Will be placed.

It is the figure which showed an example of the structure of the handwriting information management system of this Embodiment. It is the block diagram which showed an example of the function structure of the document server. It is the figure which showed an example of the image etc. which comprise a code image. It is the block diagram which showed an example of the function structure of the identification information server. It is a figure explaining the outline of a functional structure of a digital pen. It is the block diagram which showed an example of the function structure of the control circuit. It is the sequence diagram which showed an example of the operation | movement at the time of a printed document being produced | generated in a handwriting information management system. It is the sequence diagram which showed an example of operation | movement of the identification information server at the time of registering handwriting information, and a document server. It is the figure which showed the hardware constitutions of the computer. It is a figure explaining the whole structure of a digital pen. It is sectional drawing explaining the structure of a pen main-body part. It is a figure explaining a code image detection part. It is a figure explaining an operation display part. It is a figure explaining a writing detection function part, a cap position detection function part, and a cap part. It is a figure for demonstrating arrangement | positioning of infrared LED. It is a figure for demonstrating a surrounding member. It is the figure which showed the front-end | tip part of the cap part. FIG. 15 shows a cross section taken along line DD in FIG. 14. It is an external appearance perspective view for demonstrating the fixing structure of a filter. It shows the posture of the digital pen when reading a code image.

Explanation of symbols

60 ... Digital pen, 63 ... Infrared LED, 64 ... Infrared CMOS, 69 ... Pen chip, 610 ... Cap part, 611 ... Cap body part, 611a ... Opening part, 612 ... Clip, 612a ... Counter piece, 612b ... Slanted side part 612e ... opening, 614 ... filter, 615 ... enclosing member, 620 ... pen body part

Claims (11)

An electronic writing instrument main body having a writing unit that enables writing on a medium, an emitting unit that emits light toward the medium, and a light receiving unit that receives reflected light from the medium;
A cap body portion provided with a passage portion through which emitted light from the emitting portion and reflected light from the medium pass when the electronic writing instrument body is mounted on a side covering the emitting portion and the light receiving portion; and the cap Including a cap having a clip piece attached to the main body,
The electronic writing instrument, wherein the clip piece of the cap is provided with a clip-side passage portion through which the emitted light from the emitting portion of the electronic writing instrument body and the reflected light from the medium pass.   2. The electronic writing instrument according to claim 1, wherein the clip-side passing portion is formed by a through-hole penetrating the clip piece.   3. The electronic writing instrument according to claim 1, wherein the clip side passing portion is formed in a shape that does not interfere with light emitted from the light emitting portion. The clip piece has an inclined portion in which one end is located on the side close to the insertion port into which the electronic writing instrument main body is inserted and the other end is located on the side away from the insertion port.
4. The electronic writing instrument according to claim 1, wherein the clip-side passage portion is provided in the inclined portion of the clip piece. 5.   The electronic writing instrument according to claim 4, wherein a facing portion of the clip piece that faces the outer peripheral surface of the cap main body portion is provided connected to the one end side of the inclined portion. An electronic writing instrument main body having a writing unit that enables writing on a medium, an emitting unit that emits light toward the medium, and a light receiving unit that receives reflected light from the medium;
A cap main body portion provided with a passage portion through which light emitted from the light emission portion and reflected light from the medium pass when the electronic writing instrument main body is mounted on a side covering the light emission portion and the light receiving portion; A clip piece having a through hole through which light emitted from the part and reflected light from the medium pass, and a light transmitting member that is positioned by the cap main body part and the clip piece and provided in the through hole A cap,
An electronic writing instrument.   The electronic writing instrument according to claim 6, wherein the light transmitting member is positioned by being sandwiched between the cap main body portion and the clip piece.   The electronic writing instrument according to claim 6 or 7, wherein the light transmitting member is provided on an inner surface side of an outer surface of the clip piece.   The electronic writing instrument according to any one of claims 6 to 8, wherein a portion of the clip piece where the through hole is formed is formed to be inclined with respect to an axial direction of the cap main body portion. The emission part emits light toward the medium when pressure is applied to the writing part,
The cap is a transmission that transmits pressure from the medium to the writing unit when the cap is attached to a side of the electronic writing instrument body that covers the emitting unit and the light receiving unit and is pressed against the medium. The electronic writing instrument according to claim 6, further comprising a member.   The electronic writing instrument according to claim 10, wherein the transmission member is attached to the through hole provided in the clip piece.

Images