JP2006146772A - Processing apparatus and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a management system ensuring the originality of all the data which has possibility of being interpreted as 'original'. <P>SOLUTION: A user fills in an application form 36 by using an electronic pen 10. The electronic pen 10 transmits entry information, such as stroke data, a pen ID, and time information, to a processing terminal 5. The processing terminal 5 extracts the stroke data from the acquired entry information to create text data by OCR processing on the basis of the stroke data and a coordinate table 104. The processing terminal 5 also specifies a format corresponding to the application form 36 on the basis of the stroke data and the coordinate table 104 to acquire format data. The processing terminal 5 then creates image data on the basis of the stroke data and the format data. The processing terminal 5 then creates an electronic envelope stored with the text data and the image data and attaches a digital signature to the electronic envelope. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a security management method for digital data acquired using an electronic pen.

  In recent years, electronic records of various procedural activities such as an electronic signature method and an electronic book storage method have been legally recognized due to an increase in IT technology and security technology. Furthermore, the e-document law is scheduled to be enforced in 2005, and it is expected that books, forms, and documents will be further digitized in each field.

  In recent years, pen-type input devices called “electronic pens”, “digital pens” and the like have appeared (hereinafter referred to as “electronic pens” in this specification). “Anoto pen” developed by the company is known. Anotopen is used in a pair with dedicated paper (hereinafter referred to as “dedicated paper”) on which a predetermined dot pattern is printed. In addition to the normal ink-type pen tip, the Anoto pen is equipped with a small camera for reading the dot pattern on the dedicated paper and a data communication unit. When a user writes characters on the special paper with an anotopen or checks an image that is designed on the special paper, the small camera detects the dot pattern on the special paper as the pen moves, and the user Entry data (also referred to as “stroke data”) such as written characters and images is acquired. This entry data is transmitted from the Anotopen to a terminal device such as a nearby personal computer or mobile phone by the data communication unit. The system using this anotopen can be used as an input device in place of the keyboard, and is very easy to use for users who are reluctant to use the personal computer and keyboard described above.

  In view of the above, there is currently a demand for a mechanism that guarantees the security of the digital data of books and documents obtained using an electronic pen from the viewpoint of guaranteeing the originality and preventing unauthorized outflow. However, the conventional system merely gives a signature to the digital data acquired using the electronic pen, and cannot be said to be a strong security considering the viewpoint of originality assurance and prevention of unauthorized outflow (Patent Literature). 1).

JP 2004-153612 A

  The present invention has been made in view of the above points, and creates an electronic envelope from stroke data acquired using an electronic pen and data obtained by processing the stroke data, and an electronic signature is attached to the electronic envelope. It is an object of the present invention to provide a management system that can guarantee the originality of all data that can be interpreted as “original” by giving. It is another object of the present invention to provide a management system that can prevent unauthorized outflow by applying DRM (Digital Rights Management) processing to processed data.

  In one aspect of the present invention, a processing apparatus capable of transmitting and receiving data through a network, format identification information for identifying a format corresponding to an electronic pen form on which a dot pattern recognizable by an electronic pen is printed, Coordinate information storage means for storing coordinate information in which items provided on the electronic pen form are associated with respective position coordinates on the dot pattern, the format identification information, and data of the format Format storage means associated with the format data; entry information obtaining means for obtaining entry information entered in the form by the user with the electronic pen; and position coordinates of a locus by the electronic pen from the entry information. Stroke data extracting means for extracting stroke data that is an aggregate, and the coordinate information A text data generating means for generating text data by performing character recognition based on the stroke data, a format specifying means for specifying format identification information based on the coordinate information and the stroke data, and a format storage means. Format extracting means for extracting the format data based on the specified format identification information, image data generating means for generating image data based on the extracted format data and the stroke data, the stroke data, the text data, and An electronic envelope creating means for creating an electronic envelope based on the image data, and a signature giving means for giving a signature to the electronic envelope.

  In the processing apparatus configured as described above, a user first fills in items constituting a form using an electronic pen. The electronic pen reads the dot pattern on the form as the electronic pen moves, and acquires stroke data that is a collection of coordinate information of the movement locus. Here, the stroke data is data that does not make a business sense but is first acquired by the electronic pen and may be an original. In addition to the stroke data, the electronic pen transmits entry information including pen identification information for identifying the electronic pen, time information at the time of entry, and the like to the processing terminal. The processing terminal first extracts stroke data from the acquired entry information. Then, the processing terminal creates text data by performing character recognition using an OCR (Optical Character Reader) based on the extracted stroke data and coordinate information. Further, the processing terminal specifies the format corresponding to the form entered by the user based on the extracted stroke data and coordinate information, and acquires the format data. Based on the stroke data and the format data, the processing terminal creates image data in which characters entered by the user and ruled lines of the form are combined. Next, the processing terminal creates an electronic envelope storing stroke data, text data, and image data. Then, the processing terminal gives an electronic signature to the electronic envelope.

  According to this, a set of stroke data that can be directly acquired from the electronic pen and data obtained by processing the stroke data is regarded as an “original”, and an electronic signature can be given in one unit to guarantee the original. In other words, all the data that can be interpreted as “original” is put together into one by the function of the electronic envelope, and an electronic signature is given to ensure strong originality.

  In one aspect of the processing device, the processing device further comprises flag data creating means for creating flag data relating to an item selected by a user based on the coordinate information and the stroke data, and the electronic envelope creating means includes: Further, an electronic envelope is created based on the flag data. According to this, since the flag data obtained by processing the stroke data can also be stored in the electronic envelope, it is possible to guarantee the original including the flag data.

  In one aspect of the processing apparatus, the processing apparatus further includes a digital watermark providing unit that adds a digital watermark to the image data. Here, the digital watermark is a technique for embedding specific information with little influence on image quality, and embedding data that cannot be seen at first glance in digital data. As described above, by giving a digital watermark to image data, it is possible to restrict browsing authority and usage authority, so that unauthorized use and unauthorized leakage can be prevented and security can be improved.

  In one aspect of the processing apparatus, the processing apparatus further includes a print restriction imparting unit that imparts a print restriction for restricting printing of the image data to the image data. As described above, by giving a print restriction to the image data, it is possible to prevent a user without use authority from printing and performing unauthorized use or illegal leakage.

  In another aspect of the present invention, a computer-executable program capable of transmitting and receiving data through a network, the format identifying a format corresponding to a form for an electronic pen printed with a dot pattern recognizable by the electronic pen Coordinate information storage means for storing coordinate information in which identification information is associated with items provided on the electronic pen form and respective position coordinates on the dot pattern, the format identification information, and the format information Format storage means for associating format data as data, entry information obtaining means for obtaining entry information entered in the form by the user with the electronic pen, and position coordinates of a locus by the electronic pen from the entry information Stroke data extraction to extract stroke data that is a collection of Means, text data creating means for creating text data by performing character recognition based on the coordinate information and the stroke data, format specifying means for specifying format identification information based on the coordinate information and the stroke data, the format Format extracting means for extracting the format data from the storage means based on the specified format identification information, image data creating means for creating image data based on the extracted format data and the stroke data, the stroke data, and the text data The computer is caused to function as an electronic envelope creating means for creating an electronic envelope based on the image data and a signature giving means for giving a signature to the electronic envelope.

  By executing the above program by a computer, the above-described processing device can be realized. Moreover, each aspect of the processing apparatus described above can be realized in the same manner.

  According to the present invention, an electronic envelope is created from stroke data acquired using an electronic pen and data obtained by processing the stroke data, and an electronic signature is attached to the electronic envelope, which is interpreted as “original”. The originality of all possible data can be guaranteed. Also, illegal outflow can be prevented by applying DRM (Digital Rights Management) processing to the processed data.

  Preferred embodiments of the present invention will be described below with reference to the drawings. First, an outline of an electronic pen used as an input device in the system of the present invention will be described.

[Electronic pen]
FIG. 1 is a diagram schematically showing how the electronic pen is used, and FIG. 2 is a functional block diagram showing the structure of the electronic pen. As shown in FIG. 1, the electronic pen 10 is used in combination with a dedicated paper 20 on which a dot pattern is printed. The electronic pen 10 includes a pen tip portion 17 similar to a normal ink pen, and a user writes characters on the dedicated paper 20 in the same manner as a normal ink pen.

  As shown in FIG. 2, the electronic pen 10 includes a processor 11, a memory 12, a data communication unit 13, a battery 14, an LED 15, a camera 16, and a pressure sensor 18 therein. The electronic pen 10 includes an ink cartridge (not shown) as a component similar to a normal ink pen.

  The electronic pen 10 does not convert the locus of the ink drawn on the dedicated paper 20 by the pen tip unit 17, but converts the locus coordinates of the movement of the electronic pen 10 on the dedicated paper 20 into data. While the LED 15 illuminates the vicinity of the pen tip 17 on the dedicated paper 20, the camera 16 reads the dot pattern printed on the dedicated paper 20 and converts it into data. That is, the electronic pen 10 can acquire a stroke generated when the user moves the electronic pen 10 on the dedicated paper 20 as image data or vector data. Here, the image data or vector data acquired by the electronic pen 10 is a collection of coordinate information of the locus on the dot pattern, and is referred to as “stroke data” in the present embodiment. This stroke data is data that is meaningless for business unless it is subjected to predetermined processing, but is first acquired by the electronic pen 10 and may be regarded as “original”.

  The pressure sensor 18 detects the pressure applied to the pen tip portion 17 when the user writes characters on the dedicated paper with the electronic pen 10, that is, the writing pressure, and supplies the detected pressure to the processor 11. The processor 11 switches the LED 15 and the camera 16 on and off based on the writing pressure data given from the pressure sensor 18. That is, when the user writes characters or the like on the dedicated paper 20 with the electronic pen 10, writing pressure is applied to the pen tip portion 17. Therefore, when the writing pressure exceeding the predetermined value is detected, it is determined that the user has started the description, and the LED 15 and the camera 16 are operated.

  The camera 16 reads the dot pattern on the dedicated paper 20 and supplies the pattern data to the processor 11. The processor 11 calculates X / Y coordinates on the dedicated paper 20 from the supplied dot pattern.

  The processor 11 acquires the writing pressure array data and the X / Y coordinate data while the description of the user is performed, and stores them in the memory 12 in association with the time stamp (time information). Therefore, data corresponding to the description content of the user is stored in the memory 12 in time series. The capacity of the memory 12 can be about 1 Mbyte, for example.

  All the acquired data is held in the memory 12 until a transmission instruction is given by the user. When the user issues a transmission instruction, the data communication unit 13 transmits the data in the memory 12 to the terminal device 25 within a predetermined distance from the electronic pen 10. Basically, once a transmission instruction is given, the electronic pen 10 transmits all the data stored in the memory 12 to the terminal device 25, so that the memory 12 is cleared. Therefore, when it is desired to transmit the same information to the terminal device 25 again after transmission, the user needs to write the description on the dedicated paper 20 again. In this case, the user only has to trace characters written on the dedicated paper 20 with an ink pen.

  The electronic pen 10 itself does not include a function button such as a transmission button, and a transmission instruction and other instructions are performed by a user checking the dedicated box provided at a predetermined position on the dedicated paper 20 with the electronic pen 10. Executed. A transmission instruction is associated with the position coordinates of the dedicated box in advance. When the processor 11 receives the position coordinates of the dedicated box, the processor 11 supplies data in the memory 12 to the data communication unit 13 and transmits the data to the terminal device 25. To do. The electronic pen 10 can indicate completion of data transmission by vibration of the electronic pen.

  The battery 14 is for supplying power to each element in the electronic pen 10, and the electronic pen 10 itself can be turned on / off by a cap (not shown) of the electronic pen, for example.

  As described above, the electronic pen 10 has a function of acquiring coordinate data and writing pressure data corresponding to characters and the like described on the dedicated paper 20 by the user and transmitting them to the nearby terminal device 25. Since the pen tip portion 17 is a normal ink pen, the content described on the dedicated paper 20 remains as an original original. That is, at the same time as describing the original paper, its contents can be digitized in the form of coordinate data in real time.

  According to the standard function of the electronic pen 10, the stroke data obtained by the electronic pen 10 is in the form of coordinate data or vector data in principle, and is not text data. However, as a standard function, the electronic pen 10 is provided with a function of converting it into text after processing only alphanumeric characters by describing it in a dedicated area provided on the dedicated paper 20.

  Also, the electronic pen 10 can hold property information (pen information and pen owner information) regarding the pen itself and its owner, and can be referred to from an application. As the pen information, a battery level, a pen ID, a pen manufacturer number, a pen software version, a subscription provider ID, and the like can be held. The pen owner information can hold nationality, language, time zone, email address, free memory capacity, name, address, fax / phone number, mobile phone number, and the like.

  In the data communication unit 13 in the above example, the electronic pen 10 is connected to the terminal device 25 by various methods such as Bluetooth (registered trademark) wireless transmission, wired transmission using a USB cable, and data transmission by contact with a terminal. It is conceivable to perform data transmission.

  Next, a method for acquiring X / Y coordinate data of contents described by the user with the electronic pen will be described. As described above, a predetermined dot pattern is printed on the dedicated paper 20. The camera 16 of the electronic pen 10 does not read the locus of ink described on the dedicated paper 20 by the user, but reads the dot pattern on the dedicated paper 20. Actually, as shown in FIG. 1, the illumination area by the LED 15 and the shooting area of the camera 16 (located in the illumination area) are deviated from the position where the pen tip portion 17 contacts the dedicated paper 20.

  The dot pattern is printed with a special ink containing carbon, and the camera 16 can recognize only the pattern with the special ink. Even if ruled lines or frames are printed on dedicated paper with inks other than dedicated ink (not including carbon), the electronic pen does not recognize them. Therefore, when creating forms such as various application forms using dedicated paper, input frames, ruled lines, cautions, etc. are printed with ink other than dedicated ink.

  In the dot pattern, as illustrated in FIG. 3, the position of each dot is associated with data. In the example of FIG. 3, the 2-bit information of 0 to 3 is displayed by shifting the dot position vertically and horizontally from the reference position (intersection of vertical and horizontal lines) of the grid. The position coordinates on the dedicated paper are determined by the combination of information expressed in this way. As illustrated in FIG. 4A, 36 dots are arranged in a grid within a range of 2 mm in length and width, and the data array (FIG. 4B) indicated by these dots is displayed on the dedicated paper. Are associated with the position coordinates. Therefore, when the camera 16 of the electronic pen 10 captures a dot pattern as shown in FIG. 4A, the processor 11 changes the data array shown in FIG. 4B based on the dot pattern data input from the camera 16. The position coordinates on the dedicated paper (that is, where the dot pattern is located on the dedicated paper) corresponding to the acquired position are calculated in real time. The minimum unit for recognizing the dot pattern is 2 mm × 2 mm, and the camera 16 takes about 100 shots per second.

  Next, the dedicated paper will be described. An example of the structure of the dedicated paper is shown in FIG. As shown in the figure, the dedicated paper 20 has a dot pattern 32 printed on a mount 30 and a design 34 such as a ruled line printed thereon. The mount 30 is usually paper, and the dot pattern 32 is printed with dedicated ink containing carbon as described above. Further, the design 34 is printed with normal ink or the like. The dot pattern and the design may be printed at the same time, or one of them may be printed first.

  An example of the design 34 is shown in FIG. FIG. 6 shows an example of a certain application form 36 in which a plurality of entry fields 38 and a transmission box 39 are printed. Although it is not clearly shown in FIG. 6 and will be described in detail later, a dot pattern is actually printed on the entire surface of the application form 36, and an entry box 38 and a transmission box 39 are formed on the entire surface using ordinary ink. It is printed. The user can enter the necessary items in each entry field 38 of the application form 36 using the electronic pen 10 in the same manner as a conventional application form without being aware of the dot pattern.

  The area on the dedicated paper 20 can be roughly divided into two types. One is an entry area, in which the content described by the electronic pen 10 is handled as information as it is. In the example of FIG. 6, a plurality of entry fields 38 correspond to this. The other is a functional element, and when the corresponding area is checked with the electronic pen 10, actions, instructions, etc. defined in advance for the area are executed. The transmission box 39 in the example of FIG. 6 corresponds to this.

  The transmission box 39 is used when giving an instruction to transmit data stored in the electronic pen 10 to the nearby terminal device 25 as described above. When the user checks the transmission box 39 with the electronic pen 10, the electronic pen 10 reads the dot pattern in the transmission box. The pattern is associated with a transmission instruction, and the processor 11 in the electronic pen 10 issues a command to transmit data stored in the memory 12 to the data communication unit 13.

  The assignment of dot patterns is usually performed for each application (paper type). In other words, the dot patterns in a certain application form do not overlap in one sheet, but the same dot pattern is printed on the same application form. Therefore, when the user inputs necessary items with the electronic pen 10, it can be specified from the coordinate data on the application form which item of the application form the input item is for.

  As described above, by printing a predetermined design on the dedicated paper on which the dot pattern is printed, various application forms using the dedicated paper can be created. If the user uses the electronic pen 10 and fills in necessary items in a normal manner, the electronic data is automatically acquired.

  In the above example, the dot pattern is printed on the dedicated paper with carbon-containing ink. However, the dot pattern can be printed on ordinary paper using a printer and carbon-containing ink. Furthermore, the design on the dedicated paper can also be formed by a printer instead of printing. When dot patterns are formed on paper by a printer, different dot patterns can be formed on each sheet. Therefore, it is possible to identify and distinguish each of these sheets by the difference in the formed dot patterns.

  In the present specification, the term “printing” has a concept including not only normal printing but also printing by a printer.

  Next, transmission processing of data acquired by the electronic pen will be described with reference to FIG. The data acquired by the electronic pen 10 is mainly data of items input by the user, but usually does not include information on where the service server that is the transmission destination of the data is. Instead, information specifying the application or service related to the dedicated paper is included in the dot pattern on the dedicated paper, and the information is acquired from the dedicated paper during the user's input operation. Therefore, the terminal device 25 that has received the entry data from the electronic pen 10 first makes an inquiry to the inquiry server 26 to which service server 27 the data input to the dedicated paper should be transmitted. The inquiry server 26 has information on a corresponding service server for each dedicated paper, and in response to an inquiry from the terminal device 25, information (such as a URL) of the service server 27 that performs a service related to the dedicated paper. Reply to the terminal device 25. Then, the terminal device 25 transmits the entry data acquired from the electronic pen to the service server 27.

  In the above example, the terminal device 25, the inquiry server 26, and the service server 27 are separately configured. However, some or all of them may be configured as one device. In the present embodiment, it is assumed that the processing device described later also serves as the inquiry server 26 and the service server 27.

[Management system]
Next, the management system of the present invention will be described. FIG. 7 shows a schematic configuration of the management system 100. The management system 100 shown in FIG. 7 acquires information entered by a user in an electronic pen form (hereinafter referred to as “form”) as entry information, stroke data extracted from the entry information, and the stroke data. This is a system that guarantees the originality of all data that can be interpreted as “original” by creating an electronic envelope from the processed data and giving an electronic signature to the electronic envelope. The management system 100 is a system that prevents unauthorized outflow by performing DRM processing on the processed data. Here, the entry information is information including the pen ID of the electronic pen 10 and time information at the time of entry in addition to the stroke data described above.

  As shown in FIG. 7, the management system 100 is configured by connecting a terminal device 25 and a processing device 5 through a network 2. Here, one suitable example of the network 2 is the Internet. The terminal device 25 is a terminal that can exchange data via the network 2 such as a PC or a mobile phone used by a user. The processing device 5 is connected to a format database (hereinafter referred to as “DB”) 6, stroke data DB 7, text data DB 8, and image data DB 9.

  First, an outline of a digital data management method in this system will be described with reference to FIG. FIG. 8A is an example of an application form in which the user enters predetermined information, and FIG. 8B is an example of an application form in which the user has actually entered.

  The application form 36 is created as the above-mentioned dedicated paper. As shown in FIG. 8A, the user arbitrarily checks one of the name and address entry fields and a plurality of options. It consists of multiple items including a check column. Here, the entry field for entering the name is referred to as “name item”, the entry field for entering the address is referred to as “address item”, and the check field for checking the option is referred to as “selection item”. In addition, as described above, the application form 36 also includes a transmission box 39 that is used when an instruction for transmitting data stored in the electronic pen 10 to the nearby terminal device 25 is given.

  First, as shown in FIG. 8B, the user fills in the application form 36 using the electronic pen 10. The electronic pen 10 acquires stroke data corresponding to the entered content, temporarily stores it in a memory in the electronic pen 10, and then transmits entry information including the stroke data to the terminal device 25. The terminal device 25 receives the entry information from the electronic pen 10 and transmits it to the processing device 5 through the network 2. The processing device 5 acquires entry information as information on characters and the like entered in each item on the application form 36 by the user.

  The processing device 5 extracts stroke data from the entry information and stores it in the stroke data DB 7. Here, the stroke data is a collection of locus coordinate information on the dot pattern. This stroke data is data that is meaningless for business unless it is subjected to predetermined processing, but is first acquired by the electronic pen 10 and may be regarded as “original”. Furthermore, the processing device 5 creates text data by performing character recognition by OCR based on the stroke data and a coordinate table described later, and stores the text data in the text data DB 8. Here, the text data is data obtained by processing the stroke data in accordance with a predetermined process, and is data directly used for business such as registration in a DB or a system. Data. Note that the text data is text data relating to characters entered by the user, and does not include text in a format previously described in the application form 36.

  Further, the processing device 5 specifies the format of the application form 36 entered by the user based on the stroke data and a coordinate table described later, and extracts the format data of the specified format from the format DB 6. Then, the processing device 5 creates image data based on the extracted format data, stroke data, and coordinate table. Here, the image data is data obtained by processing the stroke data according to a predetermined process, and may be used for a task that is judged by a person based on the visibility, and may be a visible “original” after the process is completed. There is data. The image data is data obtained by combining characters entered by the user and the format entered by the user.

  Further, the processing device 5 performs DRM processing on the created image data. Here, DRM processing is a technique for protecting the copyright of digital data. Specifically, it is possible to add a digital watermark to the image data, or to add a copy restriction such as printing restriction, screen capture prevention, or leaving no data in the memory (cache). Here, the digital watermark is a technique for embedding specific information with little influence on image quality and sound quality, and embedding data that cannot be seen at first glance in digital data. Specifically, the image data embedded with the “watermark” data appears to be the same as the original data at first glance, but when it is read into the dedicated digital watermark detection software, the author name and the number of copies are embedded. Information is displayed. As described above, since DRM processing is performed on the image data, unauthorized copying and falsification of the data can be prevented, so that browsing and use other than the appropriate target can be restricted for the imaged original. . The image data that has undergone the DRM process is stored in the image data DB 9.

  Then, the processing device 5 creates an electronic envelope that stores the stroke data stored in the stroke data DB 7, the text data stored in the text data DB 8, and the image data stored in the image data DB 9. Further, the processing device 5 encrypts the electronic envelope and gives an electronic signature. According to this, even if the stroke data, text data, and image data are regarded as true originals, even if it is not clearly determined by the legal system or various industry practices, it is the same for all data. The originality can be guaranteed.

[Processing equipment]
Next, the processing device 5 will be described in detail. FIG. 9 shows an internal configuration of the management system 100, particularly the processing device 5. As illustrated, the processing device 5 includes a management program 101, an entry information acquisition function 102, a stroke data extraction function 103, a coordinate table 104, an OCR processing execution function 105, a text data creation function 106, a format specification function 107, and image data creation. It comprises a function 108, a DRM process execution function 109, an electronic envelope creation function 110, and an electronic signature assignment function 111.

  In addition, each function is implement | achieved when CPU which the processing apparatus 5 has runs the program prepared beforehand.

  The management program 101 creates an electronic envelope storing the stroke data extracted from the entry information acquired from the electronic pen 10 and text data and image data obtained by processing the stroke data, and gives an electronic signature to the electronic envelope. It is a program. The management program 101 is a program that performs DRM processing on the processed image data.

  The entry information acquisition function 102 is a function for acquiring entry information relating to information entered in the application form 36 by the user using the electronic pen 10 by executing the management program 101.

  The stroke data extraction function 103 is a function for extracting stroke data from the entry information acquired by the entry information acquisition function 102. The stroke data extraction function 103 is a function for storing the extracted stroke in the stroke data DB 7. The stroke data DB 7 stores stroke data using, for example, a data ID or the like as a key in order to associate the stroke data with text data and image data created by processing the stroke data.

  The coordinate table 104 will be described with reference to FIG. FIG. 10 is a diagram schematically showing the data structure of the coordinate table 104. As illustrated, the coordinate table 104 includes item IDs, coordinate data, item names, and format IDs. The item ID is information for identifying each item constituting the application form 36, and the item name is the name of each item. The coordinate data is coordinate data indicating the arrangement of each item on the dot pattern printed on the application form 3. The format ID is information for identifying a format corresponding to the application form 36 having each item as a component. By referring to the coordinate table 104, the processing device 5 can recognize which item on the application form 36 the user has entered based on the stroke data that is a collection of coordinate information. Text data and image data can be created.

  The OCR processing execution function 105 is a function for recognizing characters and symbols entered in each item on the application form 36 by executing OCR based on the stroke data extracted by the stroke data extraction function 103 and the coordinate table 104. It is.

  The text data creation function 106 is a function for creating text data based on characters and symbols recognized from the stroke data by the OCR process execution function 105. The text data creation function 106 is a function for storing text data in the text data DB 8 using a data ID, which is information for associating with stroke data before processing, as a key.

  The format identification function 107 is a function for identifying the format ID of the format corresponding to the application form 36 entered by the user by referring to the coordinate table 104 based on the stroke data extracted by the stroke data extraction function 103. The format specifying function 107 is a function for extracting corresponding format data from the format DB 6 based on the specified format ID. Here, the format DB 6 will be described with reference to FIG. As shown in FIG. 11, the format DB 6 stores format data of a corresponding format using the format ID as a key.

  The image data creation function 108 is a function for creating image data based on the format data and stroke data extracted by the format identification function 107. Various methods such as a method in which a tag is set in advance for each item and a method based on the coordinate table 104 are conceivable for associating the format data with the stroke data.

  The DRM processing execution function 109 is a function for executing DRM processing on the image data created by the image data creation function 108. The DRM process execution function 109 is a function for storing the image data subjected to the DRM process in the image data DB 9 using the data ID, which is information for associating with the stroke data before processing, as a key.

  The electronic envelope creation function 110 is a function for extracting stroke data, text data, and image data associated with each other based on the data ID from the stroke data DB 7, the text data DB 8, and the image data DB 9. The electronic envelope creation function 110 is a function for creating an electronic envelope storing the extracted stroke data, text data, and image data.

  The electronic signature giving function 111 is a function for encrypting the electronic envelope created by the electronic envelope creating function 110 and giving an electronic signature.

[Management process]
Next, management processing executed by the management system 100 will be described. FIG. 12 is a flowchart of the management process.

  First, the user uses the electronic pen 10 to make a predetermined entry for each item on the application form 36 as shown in FIG. When the entry on the application form 36 is completed, the user transmits the entry information to the processing device 5 through the terminal device 25 by filling a check mark in the transmission box 39.

  The processing device 5 acquires entry information from the terminal device 25 (step S1), and first extracts stroke data from the entry information (step S2). Then, the processing device 5 assigns a data ID to be associated with text data and image data described later, and stores the extracted stroke data in the stroke data DB 7 using the data ID as a key (step S3).

  Further, the processing device 5 creates text data by executing OCR processing based on the stroke data and the coordinate table 104 (step S4). Then, the processing device 5 stores the created text data in the text data DB 8 using the data ID as a key (step S5).

  Further, the processing device 5 specifies the format ID of the format corresponding to the application form 36 entered by the user based on the stroke data and the coordinate table 104 (step S6). Then, the processing device 5 extracts the corresponding format data from the format DB 6 based on the specified format ID (step S7). Further, the processing device 5 creates image data based on the stroke data and the format data (step S8). Then, the processing device 5 performs DRM processing on the created image data to prevent unauthorized outflow (step S9), and stores the image data subjected to the DRM processing in the image data DB 9 using the data ID as a key ( Step S10).

  Next, the processing device 5 extracts stroke data, text data, and image data from the stroke data DB 7, text data DB 8, and image data DB 9, respectively, based on the data ID. Then, the processing device 5 creates an electronic envelope that stores the extracted stroke data, text data, and image data (step S11). Further, the processing device 5 encrypts the electronic envelope and gives an electronic signature (step S12). Thereby, the management process is completed.

  The user who fills in the application form 36 with the electronic pen 10 receives the electronic envelope from the processing terminal 5 using the user terminal 25, and receives stroke data, text data, image data, and a predetermined processing result. It is good also as being able to browse.

  In this embodiment, text data and image data are created by processing stroke data. However, the present invention is not limited to this, and a user enters a check mark or the like in a selection item. Thus, flag data that is information on the selected item can be created.

  As described above, the present invention regards a set of stroke data that can be directly acquired from the electronic pen 10 and data obtained by processing the stroke data as an “original”, and guarantees the original by an electronic signature in one unit. In other words, all data that can be interpreted as “original” is targeted, and an electronic signature is given as a unit by the function of the electronic envelope, thereby demonstrating a strong originality.

  In addition, by giving DRM processing such as digital watermarking to image data to be imaged, viewing / use authority can be restricted, so that unauthorized use and unauthorized outflow can be prevented and security can be improved.

  In this way, an electronic envelope can be created from stroke data obtained using an electronic pen and data obtained by processing the stroke data, and an electronic signature can be given to the electronic envelope. It is possible to guarantee the originality of all the data that has the characteristics. In addition, illegal outflow can be prevented by performing DRM processing on the processed data.

It is a figure which shows the usage pattern of an electronic pen typically. It is a functional block diagram which shows the structure of an electronic pen. It is a figure explaining the expression method of the information by the dot pattern printed on the exclusive paper. It is an example of a dot pattern and the information corresponding to it. The structure of a form composed of dedicated paper is shown. An example of an electronic pen form is shown. It is a figure which shows schematic structure of the management system in this invention. It is an example of the application form used in a management system. FIG. 8 is a functional block diagram of a processing device included in the management system shown in FIG. 7. It is a figure which shows typically the data structure of a coordinate table. It is a figure which shows typically the data structure of format DB. It is a flowchart of the management process in this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Network 5 ... Processing apparatus 10 ... Electronic pen 11 ... Processor 12 ... Memory 13 ... Data communication unit 14 ... Battery 25 ... Terminal device 26 ... Inquiry server 27 ... Service server 100 ... Management system

Claims (8)

A processing device capable of transmitting and receiving data over a network,
Format identification information for identifying a format corresponding to an electronic pen form printed with a dot pattern recognizable by the electronic pen, items provided on the electronic pen form, and respective position coordinates on the dot pattern Coordinate information storage means for storing coordinate information in association with
A format storage means that associates the format identification information with format data that is data of the format;
Entry information obtaining means for obtaining entry information entered in the form by the electronic pen by the user;
Stroke data extraction means for extracting stroke data that is a collection of position coordinates of the locus by the electronic pen from the entry information;
Text data creating means for creating text data by performing character recognition based on the coordinate information and the stroke data;
Format specifying means for specifying format identification information based on the coordinate information and the stroke data;
Format extraction means for extracting the format data from the format storage means based on the specified format identification information;
Image data creating means for creating image data based on the extracted format data and the stroke data;
An electronic envelope creating means for creating an electronic envelope based on the stroke data, the text data, and the image data;
A processing apparatus comprising: a signature adding unit that adds a signature to the electronic envelope. The processor is
Flag data creating means for creating flag data related to an item selected by the user based on the coordinate information and the stroke data;
The processing apparatus according to claim 1, wherein the electronic envelope creating unit further creates an electronic envelope based on flag data. The processor is
The processing apparatus according to claim 1, further comprising a digital watermark adding unit that adds a digital watermark to the image data. The processor is
4. The processing apparatus according to claim 1, further comprising: a print restriction imparting unit that imparts a print restriction for restricting printing of the image data to the image data. 5. A program executable by a computer capable of transmitting and receiving data over a network,
Format identification information for identifying a format corresponding to an electronic pen form on which a dot pattern recognizable by the electronic pen is printed, items provided on the electronic pen form, and respective position coordinates on the dot pattern Coordinate information storage means for storing coordinate information in association with
A format storage means for associating the format identification information with format data which is data of the format;
Entry information acquisition means for acquiring entry information entered in the form by the electronic pen by the user;
Stroke data extraction means for extracting stroke data that is a collection of position coordinates of the locus by the electronic pen from the entry information;
Text data creating means for creating text data by performing character recognition based on the coordinate information and the stroke data;
Format specifying means for specifying format identification information based on the coordinate information and the stroke data;
Format extraction means for extracting the format data from the format storage means based on the specified format identification information;
Image data creation means for creating image data based on the extracted format data and the stroke data;
An electronic envelope creating means for creating an electronic envelope based on the stroke data, the text data, and the image data;
A program for causing the computer to function as a signature providing unit for applying a signature to the electronic envelope. The program is
Further causing the computer to function as flag data creating means for creating flag data relating to an item selected by the user based on the coordinate information and the stroke data;
6. The program according to claim 5, wherein the electronic envelope creating means further creates an electronic envelope based on flag data. The program is
The program according to claim 5 or 6, further causing the computer to function as a digital watermark applying unit that adds a digital watermark to the image data. The program is
The program according to any one of claims 5 to 7, further causing the computer to function as a print restriction giving unit that gives the image data a print restriction that restricts printing of the image data.

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