JP2004086273A - Digital pen type document input system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow image information of handwriting obtained from a digital pen to be used for a document. <P>SOLUTION: The digital pen 10 has a camera for photographing handwriting of the digital pen, a document mark showing a type of the document and a region mark showing a handwriting region of the document, and transmits information photographed by the camera or information obtained by working information to a terminal machine 20 such as a personal computer by radio communication. On a terminal machine 20-side, image information of handwriting is generated based on information received from the digital pen 10 and an image file to which the document mark and a region mark are added as attached information of image information is generated. Thus, the electronic document obtained by synthesizing image information of handwriting at an appropriate part of the desired document can be generated. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital pen-type form input system, and more particularly to a digital pen-type form input system capable of writing image information of handwriting obtained from a digital pen in a handwritten area of a form.
[0002]
[Prior art]
In recent years, a diagnosis support system using pen input as disclosed in JP-A-2002-163356 has been proposed.
[0003]
[Problems to be solved by the invention]
By the way, in the above-mentioned conventional technology, since information input by pen input is converted into text or the like, the input identification information due to the habit of the operator is erased. Therefore, forms such as a medical record (medical record), a medical fee bill, and an examination request form include a preprinted area and a handwritten area having identification information of an operator. Since the handwriting image information does not include information on the type of form and the handwritten area of each form, the image information is synthesized and output for monitor display in the desired handwritten area of the form, printed out, and the same as a medical record. The patient could not be identified on the form.
[0004]
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a digital pen-type form input system that can utilize handwritten image information obtained from a digital pen for forms.
[0005]
[Means for Solving the Problems]
In order to achieve the object, a digital pen-type form input system according to claim 1 includes a detecting unit for detecting a handwriting of a digital pen, and information detected by the detecting unit during a handwriting operation with the digital pen. Means for creating handwriting image information based on the handwriting, storage means for storing a relationship between a plurality of handwritten areas on the form and an area mark for specifying each handwritten area, and on the form detected by the detecting means And a specifying means for specifying an area for outputting the handwriting image information based on the area mark indicating the handwritten area and the storage content of the storage means.
[0006]
The handwriting image information obtained from the digital pen is output when, for example, pasting and synthesizing the handwriting area of a form or printing it in the handwriting area of a paper form. Which of the handwritten areas is to be output is specified. That is, the detection means can detect an area mark for specifying a handwritten area of a form, similarly to the detection of a handwriting. The area mark can be captured using a digital pen, for example, from a template in which the area mark is recorded. Based on the area mark detected in this way and the storage content of the storage means, a corresponding handwritten area can be read from the storage means.
[0007]
As described in claim 2, the storage unit stores a relationship between a plurality of types of forms and a form mark for specifying each form, and the specifying unit specifies the form detected by the detection unit. A form for outputting the handwriting image information is specified based on a form mark for performing the operation and the storage content of the storage means.
[0008]
4. A character recognizing means for recognizing a character from the handwriting image information according to claim 3, wherein the handwriting image information obtained at the time of writing on a form on which information indicating a designated area for character recognition is printed in advance. And a character recognition unit that targets only the image information of the handwriting in the designated area for character recognition. The information indicating the designated area includes a mark printed on a form, a frame of the designated area, and the like, and specifies an area of handwriting image information for character recognition from the mark or the frame.
[0009]
5. A file creating means for creating and saving a file in which the handwriting image information is saved, as described in claim 4, wherein the file is attached with attached information including character information recognized by the character recognition means. -It is characterized by having a file creating means for saving, and enabling a file search based on the character information recognized by the character.
[0010]
6. A digital pen having a pen pressure sensor as shown in claim 5, storage means for storing the relationship between the author and handwriting image information and pen pressure pattern, and handwriting image information obtained at the time of signature And an authentication unit for authenticating the writer by comparing the writing pressure pattern detected by the writing pressure center with the image information of the handwriting and the writing pressure pattern stored in the storage unit. That is, the author is authenticated based on both the image information of the handwriting and the pen pressure pattern so that erroneous authentication due to imitation of the handwriting can be prevented.
[0011]
As shown in claim 6, a digital pen having unique identification information, capturing means for taking in the identification information when writing with the digital pen, and file creation for creating a file in which image information of the handwriting is stored Means for causing the file creation means to create a file to which attached information including the captured identification information or the writer corresponding to the identification information and the creation date and time of the image information is attached, and based on the attached information. File management. The identification information unique to the digital pen includes a device number of the digital pen. When the digital pen and the owner (author) correspond one-to-one, the author can be specified from the identification information.
[0012]
According to a seventh aspect of the present invention, there is provided a capture unit that captures information of an author who is authenticated by the authentication unit when writing with the digital pen, and a file creation unit that creates a file in which image information of the handwriting is stored. File creation means for creating a file with attached information including the fetched author and the creation date and time of the image information, and enabling file management based on the attached information. And
[0013]
According to the invention according to claim 6 or 7, it is possible to know when and by whom the handwriting image information stored in the file was written.
[0014]
9. A file creation means for creating and saving a file in which the handwriting image information is saved, wherein the handwriting image information is created by the creation date and time and the handwritten area of the form specified by the specification means. File creation means for creating and storing a file to which the attached information including the information of the handwriting is attached. It is characterized by creating and saving another file having
[0015]
10. A file creating means for creating and saving a file in which the handwriting image information is stored, wherein a date and time of creation of the handwriting image information and a handwritten area of a form specified by the specifying means are provided. File creation means for creating and saving a file to which attached information including the information of the handwriting is attached. The file creation means saves image information of handwriting of different creation date and time for the same handwritten area in the same file. The feature is that the color of the image information is changed for each creation date and time.
[0016]
According to the invention according to claim 8 or 9, it is possible to determine whether the image information is the image information of the handwriting first written in the handwritten area of the form or the image information of the handwriting added afterward.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a digital pen-type form input system according to the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a schematic system configuration diagram of a digital pen type form input system according to the present invention.
[0019]
As shown in FIG. 1, this digital pen-type form input system is provided, for example, in a hospital or the like, and a terminal 20 such as a personal computer that wirelessly communicates with the digital pen 10, a management server 30, and a printer 40 are connected to the hospital. Are connected by a local area network (LAN) 50.
[0020]
The digital pen 10 and the terminal device 20 are installed in a medical department in a hospital, an inspection department for performing tests, a drug department for prescribing drugs, a medical department for performing accounting and the like. The numbers of the digital pens 10 and the terminals 20 are arbitrary, and the digital pens 10 and the terminals 20 that wirelessly communicate with the digital pens 10 do not need to correspond one-to-one. A plurality of digital pens 10 can be connected to the machine 20 for communication. Further, in this embodiment, it is assumed that the authors such as doctors, nurses, technicians, and clerks each have their own digital pen 10.
[0021]
The management server 30 includes a patient database for centrally managing patient information such as patient identification information (patient ID), patient name, age and gender, a medical record (medical record) searchable by patient ID, a medical fee bill, It has a form database that manages data of various forms such as an inspection request form, and transmits and receives necessary information to and from each terminal 20 and saves information transmitted from each terminal 20.
[0022]
The printer 40 prints out an appropriate form in response to a print instruction from each terminal 20.
[0023]
Next, the structure of the digital pen 10 will be described.
[0024]
As shown in FIG. 2, this digital pen 10 has a pen function for writing on paper with ink 11 in the same manner as a normal ball-point pen, a pen pressure sensor 12 for detecting pen pressure at the pen tip, and a pen tip (this In the example, the camera 13 includes a camera 13 for photographing a predetermined area adjacent to the lower side of the pen tip, a processor 14, a battery 15, a memory 16, and a wireless communication device 17. The camera 13 is a small-sized infrared camera that captures dot marks of infrared ink printed on digital paper described later, and the wireless communication device 17 performs, for example, power saving and short-range wireless communication based on the Bluetooth standard.
[0025]
The processor 14 writes the writing pressure data measured by the writing pressure sensor 12 during writing, the image signal from the infrared camera 13 during writing (while writing pressure is detected by the writing pressure sensor 12), and the digital pen 10. It takes in time data from the built-in clock function. Then, the processor 14 detects the position data of the pen tip based on the image signal from the camera 13, and stores in the memory 16 pen pressure data, time data, and the like corresponding to each position data together with the position data. The data temporarily stored in the memory 16 is transmitted to the terminal 20 by the wireless communication device 17.
[0026]
As shown in FIG. 3, the digital paper 18 is a special paper for the digital pen 10 on which a special dot pattern is printed by infrared ink. On the digital paper 18, dots (points) are arranged at intervals of about 0.3 mm, and each dot is shifted from the intersection of the lattice to one of four positions, up, down, left, and right. The dot pattern is defined as 6 × 6 dots as one unit, and the number of the patterns is the number of combinations of 36 dots, that is, the number of 4 to the 36th power.
[0027]
This 4 ³⁶ Approximately 60 million km in area conversion using individual dot patterns ² An absolute position of an area of about 97 trillion sheets of A4 paper can be defined. By reading the dot pattern on the digital paper 18, the digital pen 10 can detect the X, Y coordinates (pen tip position data) assigned to the read dot pattern. Since the dot pattern is printed with infrared ink, it is invisible to human eyes. Further, in the present embodiment, the position data of the pen tip is obtained from the dot pattern photographed by the digital pen 10 and transmitted to the terminal device 20. However, the present invention is not limited to this. The image information of the dot pattern may be transmitted to the terminal 20. Alternatively, the image information of the dot pattern may be transmitted to the terminal 20 and the image information of the dot pattern received by the terminal 20 may be transmitted. The pen tip position data may be detected, or image information may be created.
[0028]
Next, an operation method of the digital pen 10 having the above configuration and processing contents of the digital pen type form input system will be described with reference to a flowchart of FIG.
[0029]
Now, a case will be described in which the pen function of the digital pen 10 is used to write required contents such as a chief complaint / finding on a paper-based medical record, while creating an electronic medical record having the same contents (hereinafter referred to as “electronic medical record”). .
[0030]
When the digital pen 10 enters the communication area of the terminal 20, it is automatically wirelessly connected to the terminal 20. Each digital pen 10 has identification information (digital pen device number) unique to the pen, reads out this digital pen device number, and transmits this to the terminal device 20, so that the terminal device 20 or the management server 30 The side can identify the author (steps S10 and S12).
[0031]
The author writes, for example, bibliographic items (for example, patient information such as a patient ID and a patient name and a creation date and the like) in a paper-based form shown in FIG. Along with this entry, or by reading the mark with the digital pen 10, the area of the entry column for the bibliographic items (areas 2 and 3 in FIG. 5) is specified, the patient ID is specified, and the form mark is detected. Are performed (steps S14, S16, S18).
[0032]
Each of the regions 1 to 6 of the chart shown in FIG. 5 is a handwritten region, and the dot pattern described in FIG. 3 is printed in these regions 1 to 6 with infrared ink. It should be noted that characters indicating the type of the form may be printed in advance in the area 1 indicating the type of the form. In this case, entry of the form name using the digital pen 10 can be omitted.
[0033]
Now, when the patient ID is written in the thick frame of the area 2 in FIG. 5 with the digital pen 10, the position data of the handwriting indicating the patient ID is transmitted from the digital pen 10 to the terminal 20. The terminal device 20 creates handwriting image information from the position data of the handwriting every moment. In addition, the terminal device 20 can specify the area 2 having the dot pattern of the position data from the position data, and the image information of the created handwriting is the image information in the area 2 (that is, the patient ID of the patient ID). Image information).
[0034]
The terminal 20 has a character recognition function of recognizing characters from image information and converting the image information into character code information. The terminal 20 also recognizes only image information within a predetermined area. It can be set. For example, by setting the character recognition only for the image information in the area 2 (that is, the image information having the position data in the area 2), the character recognition can be performed only for the patient ID. At this time, since it is known that the patient ID is written in the area 2 in advance, characters other than the patient ID (for example, characters other than alphabets and numerals) are not recognized, so that the characters are not recognized. The recognition accuracy can be improved.
[0035]
Note that the character code information of the patient ID whose character has been recognized in this way is recorded in the header of a file such as an electronic medical record and used for file search and the like.
[0036]
The identification of the patient ID in step S16 may be performed by reading a patient-specific mark (dot pattern or barcode) printed on a patient's consultation ticket or the like in advance using the digital pen 10. As described above, the digital pen 10 can detect the position data of the pen tip by reading the dot pattern, but the number of dot patterns is four. ³⁶ Since there are individual patients, a patient ID can be specified by assigning a dot pattern for specifying the patient to each patient and associating the dot pattern with the patient ID.
[0037]
The identification of the patient ID can also be performed using a character recognition function. In particular, this is an effective case for adding medical records to medical records, as in the following case.
[0038]
By recognizing the mark corresponding to the form, it is possible to determine the form such as a medical chart, but by further confirming the patient for the same form, it is possible to specify the patient to be described in the form, It is possible to create, record, and store items such as additional medical treatment / examination in the form file of the same patient already described.
[0039]
The following embodiments can be considered as means for determining the patient depending on whether the form can be displayed or not.
[0040]
If a report such as a medical chart can be displayed, the patient ID and name can be viewed by displaying the required patient's report. By using a digital pen to write in the recognition target area, it is possible to additionally write in the form file of the same patient.
[0041]
If the form cannot be displayed, the form can be displayed by utilizing the information on the examination ticket and patient information (ID, name, etc.) in the examination, prescription, and hospitalization. Similarly to the case described above, it becomes possible by writing a patient ID or the like in the character recognition target area with a digital pen.
[0042]
The detection of the form mark in step S18 can be performed by reading the dot pattern in the area 1 with the digital pen 10. That is, when receiving the dot pattern in the area 1 from the digital pen 10, the terminal device 20 can recognize that the form to be written is a chart. In addition, not only the dot patterns in the area 1 but also the dot patterns in the other areas 2 to 6 are used. In these areas, a dot pattern different from the dot pattern used for other forms is used. By doing so, it is possible to recognize that the form to be written is a chart.
[0043]
When the form mark is detected in step S18, the form to be written is defined by the form mark. In this embodiment, a chart is defined (steps S20, S22).
[0044]
Next, the writer specifies the area 4, 5 or 6 of the chart shown in FIG. 5, and writes with the digital pen 10 in the specified area. Since dot patterns are also printed on these areas 4 to 6 with infrared ink, when a chief complaint / finding is entered on the paper-based chart with the digital pen 10, the terminal 20 indicates the entered content. Image information can be obtained. Also, by using different dot patterns in each of the areas 4 to 6, the terminal device 20 can detect which of the areas 4, 5 and 6 the image information is written in. Can be. That is, the dot marks of the areas 4 to 6 indicate absolute positions on the form and also function as area marks for specifying the areas.
[0045]
Therefore, the terminal device 20 can arrange (paste) the image information in the same area on the electronic medical record as the area entered in the paper-based medical record (steps S24 and S26).
[0046]
That is, a file having the same form as a paper-based medical record is prepared in the terminal 20 as an electronic medical record, and the terminal 20 creates an image file to be pasted into a handwritten area of the file of this form. When a chief complaint / finding or the like is entered in a paper-based chart using the digital pen 10, this image file is created as an image file having handwriting image information indicating the entered content. The image file also has attached information such as patient ID, date and time of creation of image information, author, form type information (form mark), and handwritten area information (area mark) of the form. Thereby, a file search of an image file can be performed by the attached information, and an electronic medical record on which the image file is pasted can be generated when the form file is opened. Further, it is possible to confirm when and by whom the handwritten image information pasted on the electronic medical record is written by the attached information. The creation date and time of the image information is automatically attached to the file based on the information of the writing time obtained from the digital pen 10 or by a clock function built in the terminal 20.
[0047]
The computerized form created in this way is stored in the management server 30 and used by a user who has an access right.
[0048]
In the above-described embodiment, a case has been described in which there is a paper-based form and this form is filled in with the digital pen 10 and an electronic form is created. Hereinafter, a case where there is no paper-based form will be described. I do.
[0049]
In this case, for example, the form definition template 50 as shown in FIG. 6 is prepared, and the digital paper 18 shown in FIG. 3 to be used as a memo is prepared.
[0050]
First, the author causes the digital pen 10 to read a form mark defining a desired form from the form definition template 50. Here, when the form mark of the chart 1 is read, the pen point of the digital pen 10 is applied to the black circle 51a in front of the “form” of the chart 1 and an appropriate pen pressure is applied as shown in FIG. . Below the black circle 51a, a form mark (dot pattern of infrared ink) indicating the chart format 1 is printed. When the digital pen 10 detects pen pressure, the digital pen 10 operates the camera 13 to read the form mark. This is wirelessly transmitted to the terminal 20.
[0051]
Similarly, when defining a handwritten area of the chart format 1 (for example, a recording area for a patient ID, a consultation date, a chief complaint / finding, etc.), an area mark corresponding to the area is read by the digital pen 10. After defining the handwritten area in this way, the digital pen 10 is used to write on the digital paper 18.
[0052]
Now, when a patient ID is written at an arbitrary position on the digital paper 18 with the digital pen 10, the digital pen 10 transmits the handwritten position data of the handwriting indicating the patient ID to the terminal 20. The terminal device 20 can create handwriting image information from the position data of the handwriting from moment to moment. In addition, the terminal information 20 includes additional information such as form information indicating the chart format 1 and area information indicating the area of the patient ID. Can create an attached image file. The image information of the image file created in this manner can be pasted into the patient ID area of the file of the chart format 1 based on the attached information of the image file.
[0053]
The digital pen 10 reads a patient-specific ID mark (dot pattern) printed on a patient's consultation ticket or the like in advance, and wirelessly transmits this to the terminal 20, thereby identifying the patient ID on the terminal 20 side. In this case, the handwritten input of the patient ID can be omitted.
[0054]
In addition, the terminal device 20 converts the patient's chart form 1 into an electronic form from the management server 30 based on the patient ID obtained by character recognition of the image information or the patient ID specified from the ID mark read by the digital pen 10. The read file can be read and displayed on the monitor of the terminal 20. If the digitized file of the same patient's chart format 1 is not stored in the management server 30, a new file is created and this file is displayed on the monitor of the terminal device 20.
[0055]
There is a case where it is desired to add image information such as an inspection result on a different day, for example, in an area of the medical record already having image information. In this case, the additional information attached to the image information to be added (for example, patient ID, form information, information of a handwritten area, etc.) is the additional information of the image file created in the past except for the creation date and time of the image information. Will be the same as
[0056]
If there is a past image file in which the supplementary information of the newly acquired handwriting image information and the supplementary information other than the creation date and time of the image information match, the terminal device 20 sets the image information of the newly acquired handwriting. Are stored in the same image file in a color different from that of the handwriting image information stored in the past image file. This makes it possible to recognize at a glance image information having different creation dates and times on the electronic medical record. When a plurality of pieces of image information are given to the same image file, it is preferable to leave a history such as the creation date and time of each piece of image information (that is, information attached to each piece of image information).
[0057]
In addition, if there is a past image file in which the additional information of the newly acquired handwriting image information and the additional information other than the creation date and time of the image information match, the terminal 20 determines whether the newly acquired handwriting Another image file in which the additional information is attached to the image information may be created and stored.
[0058]
Next, another embodiment for specifying (authenticating) the author will be described.
[0059]
In the embodiment described above, the author is specified by the product number of the digital pen 10 owned by the author, but in the following embodiment, the author is authenticated by the handwriting of the author. .
[0060]
That is, the management server 30 prepares a database in which image information of handwriting when the author signs with the digital pen 10 and a pen pressure pattern obtained from the pen pressure sensor 12 are stored for each author in advance. The terminal device 20 transmits image information of a handwriting and a pen pressure pattern obtained when an arbitrary author signs with the digital pen 10 to the management server 30.
[0061]
The management server 30 compares the handwriting image information and the hand pressure pattern received from the terminal device 20 with the handwriting image information and the hand pressure pattern managed in the database, and if the two match, the author is identified. The personal information of the specified author is transmitted to the terminal device 20. Accordingly, the terminal device 20 can then specify the writer for the image information of the handwriting acquired from the digital pen 10.
[0062]
The present invention is not limited to the digital pen 10 using the paper having the dot pattern shown in FIG. 3, but can be applied to, for example, a known digital pen of a type that detects the position of the pen tip by infrared rays or the like. May be any data as long as position data of the pen tip of the digital pen can be obtained.
[0063]
In addition to the digital pen 10 for photographing a dot pattern composed of infrared marks, a predetermined area including a pen tip when pen pressure is detected is continuously photographed with a sensitive or ray-like camera in the wavelength range of visible light. Alternatively, the image information of the entire handwriting may be created by connecting images obtained continuously. The predetermined area including the pen tip is, for example, an area from which image information including a thick frame of the area 2 can be obtained when a patient ID is written in the area 2 shown in FIG. According to this, the range of the image information for character recognition can be specified by the thick frame. That is, if there is a thick frame in the image information created as described above, the image information in the thick frame can be recognized as characters.
[0064]
Furthermore, in order to identify the type of form and the handwritten area, the digital pen 10 is used to read the form mark and the area mark (in this embodiment, both dot patterns). However, the present invention is not limited to this. A form mark or an area mark may be detected by drawing an area mark and performing character recognition or shape recognition of the image information of the handwriting.
[0065]
Further, the digital pen-type form input system of this embodiment has a management server in addition to the digital pen and the terminal, but the present invention comprises the system only with the digital pen and the terminal (such as a personal computer). You may.
[0066]
【The invention's effect】
As described above, according to the present invention, the handwriting image information obtained from the digital pen is provided with the information of the handwriting area of the form in which the handwriting area is determined in advance. To create an electronic form, or print handwriting image information in the appropriate place on a paper form.
[Brief description of the drawings]
FIG. 1 is a schematic system configuration diagram of a digital pen type form input system according to the present invention.
FIG. 2 is a diagram showing an example of the structure of a digital pen.
FIG. 3 is a view used to explain digital paper used in the digital pen shown in FIG. 2;
FIG. 4 is a flowchart used to explain a method of operating a digital pen and processing contents of a digital pen-type form input system according to the present invention.
FIG. 5 is a diagram showing an example of a form applied to the digital pen-type form input system according to the present invention.
FIG. 6 is a diagram showing an example of a form definition template applied to the digital pen type form input system according to the present invention.
FIG. 7 is an enlarged view of a main part of FIG. 6;
[Explanation of symbols]
1, 2, 3, 4, 5, 6 ... area, 10 ... digital pen, 11 ... ink, 12 ... writing pressure sensor, 13 ... camera, 14 ... processor, 17 ... wireless communication device, 18 ... digital paper, 20 ... Terminal, 30 ... management server

Claims (9)

Detecting means for detecting handwriting of the digital pen;
Means for creating handwriting image information based on information detected by the detection means at the time of handwriting operation with the digital pen,
Storage means for storing a relationship between a plurality of handwritten areas on the form and an area mark for specifying each handwritten area,
Specifying means for specifying an area for outputting image information of the handwriting based on an area mark indicating a handwritten area on the form detected by the detecting means and a storage content of the storage means,
A digital pen-type form input system characterized by comprising: The storage unit stores a relationship between a plurality of types of forms and a form mark for specifying each form, and the specifying unit includes a form mark for specifying the form detected by the detection unit and the form mark. 2. The digital pen-type form input system according to claim 1, wherein a form for outputting the handwriting image information is specified based on the contents stored in the storage means. A character recognition unit for recognizing a character from the handwriting image information, wherein the handwriting image information obtained at the time of writing on a form on which information indicating a specified area of the character recognition target has been printed is included in the designated area. 2. The digital pen-type form input system according to claim 1, further comprising character recognition means for performing character recognition only on the image information of the handwriting. File creation means for creating and saving a file in which the handwriting image information is saved, wherein the file creation means creates and saves a file to which attached information including character information recognized by the character recognition means is attached. 4. The digital pen-type form input system according to claim 3, wherein a file search is enabled based on the character information recognized by the character. A digital pen having a writing pressure sensor, storage means for storing the relationship between the author and the handwriting image information and the writing pressure pattern, handwriting image information obtained at the time of signature, and detection by the writing pressure center 2. A digital pen-type form input according to claim 1, further comprising authentication means for authenticating the author by comparing the pen pressure pattern with the handwriting image information and the pen pressure pattern stored in said storage means. system. A digital pen having unique identification information; capturing means for capturing the identification information when writing with the digital pen; and file creating means for creating a file in which image information of the handwriting is stored. Causing the file creation means to create a file to which the attached information including the identification information or the author corresponding to the identification information and the creation date and time of the image information is attached, and enabling file management based on the attached information. The digital pen-type form input system according to claim 1, wherein: A capturing unit that captures information of the author authenticated by the authentication unit at the time of writing with the digital pen, and a file creating unit that creates a file in which image information of the handwriting is stored, wherein the captured author is 6. The digital pen according to claim 5, further comprising: file creation means for creating a file to which attached information including the creation date and time of the image information is attached, and enabling file management based on the attached information. Expression form input system. File creation means for creating and saving a file in which the handwriting image information is stored, and attached information including a creation date and time of the handwriting image information and information on a handwritten area of a form specified by the specification means is attached. File creation means for creating and storing the created file, and the file creation means creates and creates another file having the additional information for the handwriting image information of different creation date and time for the same handwritten area. 2. The digital pen-type form input system according to claim 1, wherein the form is stored. File creation means for creating and saving a file in which the handwriting image information is stored, and attached information including a creation date and time of the handwriting image information and information on a handwritten area of a form specified by the specification means is attached. File creation means for creating and saving the created file. The file creation means saves handwriting image information of different creation dates and times in the same handwritten area in the same file, and stores the image information for each creation date and time. 2. The digital pen-type form input system according to claim 1, wherein the color is changed.

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