JP2007304851A - Document input terminal, document management system, document management method, and document management program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a document input terminal allowing input, storage, retrieval, and reference of document data without using a paper document. <P>SOLUTION: In this document input terminal 50, a liquid crystal display receives handwriting operation by a user. A pen input program part 62 detects handwriting input on the liquid crystal display and generates document data maintaining information of the handwriting condition based on the detected handwriting input in a storage area on the inside. A time synchronization part 65 and an electronic signature application part 66 give an electronic signature and a time stamp to the document data. A log collection part 69 generates log information complying with detection by the pen input program part 62. A wireless LAN communication part 67 transmits the document data with the attached time stamp and electronic signature and the log information. A business form application part 82 deletes the document data with the attached time stamp and electronic signature and the log information after transmission. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to, for example, a document input terminal, a document management system, a document management method, and a document management program for saving a document input by handwriting into an electronic file.

In recent years, the law e-document law, which allows the storage of financial and tax-related documents and forms that are required to be stored in paper as electronic data, was enforced in 2005. Efforts to convert to electronic files are being made.
Michihiro Kimura, Kazuya Miyazaki, Yoji Maeda, “Structure and Practice of Electronic Document Preservation e-Practical Response to Document Law”, December 2005, Chuo Keizaisha

  However, since the original paper document exists in the method of scanning to an electronic file, there is a risk of information leakage if you forget to discard the paper document after cutting it with a shredder after scanning. There is a problem that information leakage must be prevented.

  Further, in order to comply with the above-mentioned e-document law, the document data to be created is required to have readability, completeness, confidentiality, and searchability, and these requirements must be satisfied. The legibility is a rule such as a resolution by scanning, and a resolution capable of displaying up to the level of a handwriting is required. Completeness is a requirement to prevent loss or damage of a stored electronic document due to a failure of a recording medium while specifying the creator and the date of creation. Confidentiality requires that document data be taken out illegally, prevented from unauthorized access, and that falsification of the document data can be detected. Searchability requires that a legitimate access authority can easily find a necessary document when searching for a stored electronic document.

  The present invention has been made to solve the above-mentioned problems, and its purpose is to satisfy the requirements of readability, integrity, confidentiality, and searchability, and to make a paper document for input, storage, search, and reference of document data. An object of the present invention is to provide a document input terminal, a document management system, a document management method, and a document management program that can be performed without using them.

  In order to solve the above problem, a document input terminal capable of communicating with a server device, an operation surface on which handwriting input is performed by a user, input detection means for detecting input on the operation surface, and the input detection means include Based on the detected input, document data that maintains a handwritten state by the user is generated in an internal storage area, and the document data stored in the internal storage area is stored in advance in advance. An adding means for giving an electronic signature or a time stamp, a log detecting means for generating log information corresponding to detection by the input detecting means in the internal storage area, and an electronic signature or a time stamp being given by the giving means Transmission means for transmitting document data and log information generated by the log detection means to the server apparatus; and And deleting means for deleting said document data storage area and the log information, a document input terminal, characterized in that it comprises a.

  Further, according to the present invention, in the above-described invention, in the document data generated by the generation unit, a conversion unit that performs character recognition from document data in a predetermined area and converts the recognized character into text data; An index is extracted based on the text data converted by the conversion means, identification information that can be uniquely identified is assigned to each document data, and an index file that associates the assigned identification information with the index is stored in the internal storage area. Index file generating means for generating, the transmitting means transmitting the index file together with the document data to which the electronic signature or time stamp is given and the log information to the server device, and the deleting means is the internal storage Delete the document data, log information, and index file in the area And wherein the Rukoto.

  In the invention described above, the present invention is characterized in that the time stamp is issued by a time certification authority.

  According to the present invention, in the above-described invention, a search unit that requests the server device to search for the document data of the user and receives the document data searched from the server device, and a character of the document data A feature extracting means for extracting a feature of the character, a character feature extracted by the feature extracting means for the document data received from the server device by the search means, and the document data generated by the generating means And a feature determination unit that determines whether or not the feature of the character extracted by the feature extraction unit matches, and outputs a determination result.

  The present invention also provides a document management system for storing and managing document data input at a document input terminal in a server device, wherein the document input terminal includes an operation surface on which handwritten input by a user is performed. An input detection unit that detects an input of the operation surface; a generation unit that generates document data that maintains a handwritten state by a user in an internal storage area based on the input detected by the input detection unit; A granting unit for giving a digital signature or a time stamp stored in advance to document data stored in the storage area, and log information corresponding to the detection by the input detection unit is generated in the internal storage area Log detecting means, document data to which an electronic signature or a time stamp is given by the giving means, and log information generated by the log detecting means. Transmission means for transmitting to the server device, and deletion means for deleting the document data and the log information to which the electronic signature or time stamp of the internal storage area is attached after transmission to the server device, The server device receives the document data and the log information to which the electronic signature or time stamp given from the document input terminal is attached, and the electronic signature or time stamp received by the receiving means. First recording means for recording the document data to be recorded in the first storage means, and second recording means for recording the log information received by the receiving means in the second storage means. It is a document management system characterized.

  The present invention also relates to a document management method for storing and managing document data input at a document input terminal having an operation surface on which a user performs handwritten input, wherein the document input terminal includes the operation surface. And generating document data maintaining a handwritten state by a user in an internal storage area based on the detected input, and a document in which the document input terminal is stored in the internal storage area A step of adding an electronic signature or a time stamp stored in advance to the data, and a step of generating log information in the internal storage area by the document input terminal in response to detection of input on the operation surface The document input terminal transmits the document data attached with the electronic signature or the time stamp and the generated log information to the server device, and the server device Deleting the document data and the log information to which the electronic signature or time stamp of the internal storage area is attached after the transmission of the electronic signature or time sent by the server device from the document input terminal Document data to which a stamp is given and the log information are received, the received document data to which the electronic signature or time stamp is given is recorded in a first storage means, and the received log information is stored in a second storage means And a step of recording in the document management method.

  Further, the present invention has an operation surface that receives a user's handwriting operation and detects the input of the operation surface in a control computer of a document input terminal that can communicate with the server device, and based on the detected input, A step of generating document data maintaining a handwritten state by a user in an internal storage area, and adding an electronic signature or time stamp stored in advance to the document data stored in the internal storage area A step of generating log information corresponding to detection of input on the operation surface in the internal storage area; document data to which the electronic signature or time stamp is added; and log information to be generated to the server device A document to which the electronic signature or time stamp of the internal storage area is given after transmitting to the server device A step of deleting the chromatography data and the log information is a document management program for execution.

  According to this invention, the document input terminal includes an operation surface on which handwriting input is performed by the user, an input detection unit that detects input on the operation surface, and a state of handwriting by the user based on the input detected by the input detection unit. Generating means for generating document data in which the document data is maintained in an internal storage area, providing means for giving an electronic signature or time stamp stored in advance to the document data stored in the internal storage area, and input Log detecting means for generating log information corresponding to detection by the detecting means in the internal storage area; document data to which an electronic signature or a time stamp is given by the giving means; log information generated by the log detecting means; Transmission means for transmitting to the server device, and deletion means for deleting the document data and the log information in the internal storage area after transmission to the server device It was configured to include a. As a result, it is possible to satisfy the requirements of readability, completeness, confidentiality, and searchability for document data, and to perform input, storage, search, and reference of document data without using paper documents.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing a document management system 1 according to this embodiment.
The document management system 1 includes a document input terminal 50 used by employees and the like at a store 100 that sells products, various servers provided in the data center 200, and a time authentication server 401 provided in the authentication organization 400. is doing.

  The document input terminal 50 is, for example, a terminal device having a thin shape such that a liquid crystal display can be carried. The liquid crystal display has a function of detecting coordinates touched by the stylus pen 51 and the like, and customer information and product information (hereinafter referred to as form information) is displayed on the screen of the liquid crystal display by the stylus pen 51 and the like. On the other hand, pen input is possible. In addition, the liquid crystal display is a high-resolution display that guarantees the above-described legibility, so that even handwritten handwriting can be visually recognized by display, and can be read as information when character recognition is performed. ing.

  Also, the document input terminal 50 generates document data that maintains handwritten information from form information that is input by a store employee or a customer who purchases a product at the store 100 and displays the document data on a liquid crystal display. . The document data is not document data including text data in which a character portion is recognized as a character code, but is document data including image data in which drawn information is configured as coordinate information. In addition, the document input terminal 50 can specify the creator of the document data and the date of creation, so that the generated document data is preliminarily stored in advance, and the time authentication of the certification authority 400 is performed. A time stamp issued from the server 401 is added. In addition, the document input terminal 50 generates log information by collecting a log of operations input by the user with the stylus pen 51 or the like, for example, a log of operations for inputting into a form or a log of operations for performing search. To do.

  In addition, the document input terminal 50 transmits document data and log information to which an electronic signature and a time stamp are given to the various servers of the data center 200 via the Internet 300 by wireless LAN. Further, the document input terminal 50 performs output to a printer in the store connected via the wireless AP 101 by the wireless LAN.

  The data center 200 is a facility capable of satisfying the above-mentioned confidentiality requirements, where the entrance and exit of people is managed, and a third party can easily enter and operate various servers. The data center 200 includes an application server 210, a log collection server 220, a communication management server 230, a form information DB (Data Base) server 240, a log information DB server 250, and a log management server 260. These servers are connected to the Internet 300 via a FW (Fire Wall) 201, and the FW 201 can prevent unauthorized access from the Internet 300.

  The application server 210 stores form input software executed by the document input terminal 50 and transmits the software to the document input terminal 50 in response to a request from the document input terminal 50.

  The log collection server 220 receives the log information of the operation of the user of the document input terminal 50 collected by the log collection function unit included in the document input terminal 50 as an internal function. Record in the database.

  When the user starts using the document input terminal 50, the communication management server 230 uses the user authentication process at the time of login with the document input terminal 50, that is, stores the user name and password stored in advance. Based on this, it is verified whether the user is a registered person. In addition, the communication management server 230 receives the document data to which the electronic signature and the time stamp are added transmitted from the document input terminal 50, and the received document data in the form information DB with the electronic signature and the time stamp attached. Record in the database inside the server 240.

  The internal database of the form information DB server 240 and the log information DB server 250 can register, change, and delete data. Further, the data is encrypted and stored when the data is stored. As a result, the document data input and generated by the document input terminal 50 is stored in the form information DB server 240. Further, the log information stored in the log information DB server 250 includes information on the time when the log information is generated, and by comparing the time with a time stamp given to the document data, When document data stored in the form information DB server 240 is input at the document input terminal 50, it is possible to specify who and how the operation is input.

  The log management server 260 reads log information stored in a database inside the log information DB server 250 and analyzes the log information.

  The authentication organization 400 includes a time authentication server 401 that issues a time stamp whose reliability is ensured. The creation date of the document data is guaranteed by the time stamp issued from the time authentication server 401, and the above-described integrity request can be satisfied.

  Next, the internal configuration of the document input terminal 50 of this embodiment will be described with reference to FIG. FIG. 2 is a diagram showing an internal configuration of the document input terminal 50. The document input terminal 50 does not include a hard disk, and stores a computer program of software for configuring various functions and information stored in advance in the flash memory 52. Further, since the document input terminal 50 performs processing performed by software and information generated by the processing in a volatile RAM (Random Access Memory) provided therein, when the power is stopped, the volatile RAM Since the information is erased, information leakage can be prevented even if the document input terminal 50 is stolen.

  The storage area of the flash memory 52 includes a basic software unit 60 that stores software for performing basic operations of the document input terminal 50, and an application software unit 80 that stores software that can be arbitrarily added or deleted. ing.

  In the basic software unit 60, the OS unit 61 is software for executing basic functions as an operating system, and is configured only with functions necessary for the operation of the document input terminal 50, thereby increasing the processing speed. It is an operating system dedicated to installation.

  The pen input program unit 62 detects a user operation with the stylus pen 51 or the like performed on the liquid crystal display, and generates the above-described document data in an internal volatile RAM based on the detected operation.

  The signature authentication unit 63 extracts and extracts features such as handwriting from characters included in the document data generated by the pen input program unit 62 or characters included in the document data searched by the search program unit 85 described later. It is determined whether or not the features match, and the determination result is output. Here, it is known that characteristics such as character shape, speed, stroke, and writing pressure included in the document data vary depending on the individual and can be used for personal authentication. The signature authentication unit 63 extracts these characteristics. The determination is made based on the extracted features.

  A character recognition / conversion FEP (Front End Processor) unit 64 performs character recognition on a predetermined area of the document data generated in the volatile RAM, for example, a customer name, and converts it into text data used as an index at the time of search. Do. The time synchronization unit 65 synchronizes the time with the time authentication server 401 and assigns a time stamp issued from the time authentication server 401. The electronic signature attaching unit 66 attaches an electronic signature stored in advance to document data stored in the volatile RAM.

  The wireless LAN communication unit 67 performs wireless LAN communication such as IEEE802.11 with the wireless AP 101 and connects to a server provided in the data center 200 through the Internet 300. The wireless LAN communication unit 67 connects to a printer connected to the wireless AP 101 through the wireless AP 101.

  The SSL encryption communication protocol unit 68 uses a server certificate stored in advance in the communication management server 230 when document data to which an electronic signature and a time stamp are added is transmitted by a form application unit 82 described later. A logical line based on the SSL (Secure Socket Layer) protocol is established through the communication unit 67, and the transmission information is encrypted and transmitted to the form information DB server 240 via the communication management server 230.

  The log collection unit 69 is constituted by, for example, a resident program, and is always activated when the document input terminal 50 is activated, and an operation on the document input terminal 50 performed by the user using the stylus pen 51 or the like. Detect all of In addition, the log collection unit 69 generates log information including information on the detected operation and information on the time at which the operation is detected in the volatile RAM, and the generated log information is transmitted to the log collection server 220 through the wireless LAN communication unit 67. The server certificate stored in advance is encrypted by SSL and transmitted to the log information DB server 250 via the log collection server 220.

  In the application software unit 80, the user authentication program unit 81 sends the user name and password input to the communication management server 230 during login processing with the communication management server 230, that is, at the start of use of the document input terminal 50. And the authentication result is received from the communication management server 230. If the authentication result received by the user authentication program unit 81 from the communication management server 230 is authentication that the registered user name is a registered user name, a request is made to the application server 210 to input a form from the application server 210. And software used for search are downloaded, and the downloaded software is executed to form a functional unit related to form input and search. Note that the configured functional unit is deleted from the document input terminal 50 by logging out.

  The form application unit 82 causes the display program unit 83 to display various document input formats on the liquid crystal display. The form application unit 82 controls functional units of the basic software unit 60 such as the pen input program unit 62. In addition, the form application unit 82 generates information in a volatile RAM provided in the document input terminal 50 in order to realize a function as a thin client, and the generated information is transmitted to various servers in the data center 200. If detected, the transmitted information is deleted. Thereby, in the document input terminal 50, the input information is not stored in the document input terminal 50, but is deleted when it is stored in the form information DB server 240 or the log information DB server 250. become.

  The display program unit 83 displays the input document data on the liquid crystal display, and displays the document data retrieved from the form information DB server 240 by the search program unit 85 described later on the liquid crystal display. The print program unit 84 outputs all or part of the form information searched by the search program unit 85 to the connected printer through the wireless LAN communication unit 67.

  The search program unit 85 requests the form information DB server 240 to search for document data already stored in the form information DB server 240 and causes the display program unit 83 to display the document data included in the response to the request.

  The index file generation unit 86 extracts text data extracted from the document data by the character recognition / conversion FEP unit 63 as an index, associates the identification information generated for each document data with the index, and creates an index file for the document data. Are generated in volatile RAM.

  Next, input and storage operations of document data and the like of the document management system 1 will be described with reference to FIG.

  First, when a store employee activates the document input terminal 50, the user authentication program unit 81 is activated, and a login screen is displayed on the liquid crystal display. The employee inputs a user name and a password from the login screen. The user authentication program unit 81 transmits the input user name and password to the communication management server 230 through the wireless LAN communication unit 67. The communication management server 230 determines whether or not the received user name and password match a pre-registered user name and password, and if they match, information indicating that login is possible is sent to the document input terminal. 50 user authentication program units 81. When the user authentication program unit 81 receives information indicating that login is possible, the user authentication program unit 81 transmits a request to the application server 210 and executes software downloaded from the application server 210 to configure a functional unit related to input and search of a form. . Then, the form application unit 82 in the configured functional unit activates the pen input program unit 62 to enable input from the liquid crystal display, while displaying a main menu for selecting input processing on the liquid crystal display (step Sa1). ).

  The employee inputs an instruction to read the format data of a desired form from the main menu on the liquid crystal display surface using the stylus pen 51 or the like. When an instruction to select the format data of a desired form is input, the form application unit 82 causes the display program unit 83 to display the desired format data on the liquid crystal display so that input can be started. Then, the customer himself / herself inputs information such as name and address to the document input terminal 50 by using the stylus pen 51 or the like. Further, after the customer's input is completed, the employee inputs information for complementing the form information by hand using the stylus pen 51 or the like (step Sa2).

  Each time the pen input program unit 62 detects an input, the pen input program unit 62 converts the input form information and generates document data in the volatile RAM (step Sa3). Depending on the type of product to be purchased, the customer's identification card and the like are taken into a predetermined position of the format displayed on the liquid crystal display by a scanner or the like (step Sa4). Information captured by the scanner or the like is also converted into part of the document data (step Sa3).

  When the input is completed, when the employee selects the “input complete” area displayed on the liquid crystal display by the stylus pen 51 or the like, the form application unit 82 transmits an input completion notification to the index file generation unit 86, The file generation unit 86 generates identification information that can be uniquely identified, and associates the generated identification information with the form information. This identification information can also be displayed as a part of the form information displayed on the liquid crystal display (step Sa5). Next, the employee selects an area for “print printing” displayed on the liquid crystal display by the stylus pen 51 or the like, and inputs an instruction to perform print printing for the customer. When the copy printing instruction is input, the form application unit 82 transfers all or part of the form information displayed on the liquid crystal display by the print program unit 84 to the printer installed in the store 100 via the wireless LAN communication unit 67. An output copy is handed over from the employee to the customer (step Sa6).

  When the “send to server” area is selected by the employee's operation in the input completion state, the form application unit 82 causes the time synchronization unit 65 to request the time authentication server 401 to issue a time stamp, The time stamp received as a response to is attached to the document data stored in the volatile RAM. In addition, the form application unit 82 causes the electronic signature adding unit 66 to add an electronic signature stored therein in advance to the document data. By giving the time stamp and the electronic signature, the document data is in a state in which the authenticity is ensured (step Sa10). Then, the SSL encryption communication protocol unit 68 that has received the transmission instruction from the form application unit 82 establishes an SSL line with the communication management server 230 of the data center 200, and the form application unit 82 transmits the electronic signature through the Internet 300. The document data to which the time stamp is given is transmitted in an encrypted state using SSL. When the communication management server 230 receives the encrypted electronic signature and the document data to which the time stamp is added, the communication management server 230 decrypts the document data and then adds the electronic signature and the time stamp to the image DB 241 of the form information DB server 240. Document data is recorded (step Sa11).

  In addition, in a state where the input is completed, the character recognition / conversion FEP unit 63 performs a predetermined area of the document data stored in the volatile RAM, for example, an area such as a name, an address, an age, etc. The character is recognized from the handwritten character and converted into text data to be an index of the document data (step Sa12). The index file generation unit 86 reads the identification information already assigned to the document data, and generates an index file in which the identification information is associated with the index. The generated index file is transmitted by the form application unit 82 in an SSL encrypted state through an SSL line established with the communication management server 230. When the communication management server 230 receives the encrypted index file, it decrypts it and records it in the index DB 242 of the form information DB server 240 (step Sa13). The form application unit 82 deletes all information stored in the volatile RAM after transmitting the document data and index file to which the electronic signature and time stamp are added.

  In addition, the operation information detected by the pen input program unit 62 is generated as log information in the volatile RAM by the log collection unit 69 (step Sa20), and when the input completion state or a certain capacity is reached, The data is transmitted to the log collection server 220 of the data center in an encrypted state by the SSL encryption communication protocol unit 68 (step Sa21). When the log collection server 220 receives the encrypted log information, the log collection server 220 records the received log information in the log information DB 251 of the log information DB server 250 after performing decryption.

  With the configuration of the document management system 1 described above, it is possible to satisfy readability requirements with a high-resolution liquid crystal display. Further, since the document input terminal 50 stores the document data generated by inputting the form information in the form information DB server 240 of the data center 200 with an electronic signature and a time stamp added thereto, a request for completeness is required. Can be met. Further, since the document data is stored in the form information DB server 240 in the data center 200, illegal take-out of data and unauthorized access can be prevented, and alteration of data is detected from an electronic signature and a time stamp added to the document data. Can meet the requirements of confidentiality. Further, since the document data and log information generated by the document input terminal 50 are transmitted to the corresponding server of the data center 200 and then deleted from the volatile RAM by the OS unit 61, the confidentiality is further increased. Is possible.

  Since the log information includes time information, the log management server 260 can analyze the log information to check what operation is performed on the document input terminal 50 for each time. In addition, by comparing the electronic signature and the time stamp given to the document data, it is possible to confirm by whom and what fraudulent activity was performed by whom.

  Next, the document data search operation of the document management system 1 will be described with reference to FIG.

  As a situation in which the process of FIG. 4 is performed, for example, a situation is assumed in which a customer orders a product, and after several days, the customer visits the store 100 again to receive the product and receives the product. At this time, when the employee logs in at the document input terminal 50, the above-described processing by the user authentication program unit 81 is performed, and a function unit for inputting and searching a form is configured by software downloaded from the application server 210. (Step Sb1). The employee uses the stylus pen 51 or the like to select a search process from the main menu displayed on the liquid crystal display. When the search process is selected, the search program unit 85 displays a search screen on the liquid crystal display (step Sb2). When the search screen is displayed, the employee hands the stylus pen 51 to the customer, and the customer inputs the copy number of the customer's copy on hand, that is, the identification information described above (step Sb3).

  The employee selects the search start area on the search screen with the stylus pen 51 after the customer inputs. When the search start area is selected, the search program unit 85 transmits a search request including identification information to the communication management server 230 through the wireless LAN communication unit 67. The communication management server 230 searches and reads all index files including identification information from the index DB 242 of the form information DB server 240 (step Sb4), and transmits a search response including the read index file to the document input terminal 50. When receiving the search response, the search program unit 85 of the document input terminal 50 displays a list of index information such as identification information, customer name, and address included in the index file included in the search response on the liquid crystal display (step Sb5). .

  When the employee selects corresponding document data from the displayed list by using the stylus pen 51 or the like, the search program unit 85 sends a read request including identification information of the selected document data through the wireless LAN communication unit 67. Transmit to the communication management server 230. The communication management server 230 reads out document data corresponding to the identification information from the image DB 241 based on the identification information included in the read request, and transmits the read document data to the document input terminal 50. The search program unit 85 of the document input terminal 50 causes the display program unit 83 to display the received document data, that is, form information, on the liquid crystal display (step Sb6).

  When the form information is displayed on the liquid crystal display, the customer who received the merchandise is asked to input a receipt sign or the like in a predetermined area of the form information displayed on the liquid crystal display, and when the customer inputs the handwritten signature ( In step Sb7), the character data of the signature detected by the pen input program unit 62 is input to the signature authentication unit 63. The signature authentication unit 63 extracts character features from the character data input from the pen input program unit 62. In addition, the signature authentication unit 63 extracts the character data characteristics of the customer name part included in the form information displayed on the liquid crystal display. Then, the signature authentication unit 63 determines whether or not the characteristics of the extracted two character data match, and determines whether or not the signer matches the customer who previously input the document data of the order. The result is displayed on the liquid crystal display by the display program unit 83 (step Sb9). If the result displayed on the liquid crystal display indicates a match, the employee hands over the ordered product to the customer. In this case as well, the form application unit 82 starts the processing at the time of saving described above, and the document data to which the signature has been input has an electronic signature and a time stamp as in the case of saving the form information described above. After being assigned and recorded in the form information DB server 240 of the data center 200, the document data to which the electronic signature and the time stamp are attached is deleted. The operation at the time of search is also generated as log information by the log collection unit 69 and recorded in the log information DB server 250, and then the log information is deleted by the OS unit 61.

  With the configuration of the document management system 1 described above, the document data can be easily searched from the information included in the document data and the identification information, so that the searchability requirement can be satisfied.

  Also, with the configuration of the document management system 1 described above, document data input, storage, and search processing can be performed without using any paper document.

  In the above embodiment, the electronic signature is stored in advance in the document input terminal 50. However, an electronic signature issued by the certification authority 400 may be used.

  In the above embodiment, the document input terminal 50 is used in the store 100. However, for example, an insurance agent uses the document input terminal 50 on the go and uses a public wireless communication for transmission. A LAN service or the like may be used.

  In the above-described embodiment, both the electronic signature and the time stamp are added. However, either the electronic signature or the time stamp may be added.

  In the above embodiment, the user name and password are input at the time of login. However, the present invention is not limited to this. For example, at the time of login, a handwritten signature is input to recognize the character of the sign. And specify the user's name. In addition, the signature authentication unit 63 extracts the characteristics of the characters of the input signature. Then, the signature information corresponding to the specified user name registered in advance in the communication management server 230 is received from the communication management server 230, and the input signature features and the characteristics received from the communication management server 230 are received. May be made to be able to log in when the characteristics of the two characters match.

  In the above embodiment, the document input terminal 50 assigns the time stamp to the document data. However, the present invention is not limited to this, and the communication management server 230 adds the time stamp from the time authentication server 401. The received time stamp may be added to the document data received from the document input terminal 50.

  In the above embodiment, the communication management server 230 does not verify the electronic signature or time stamp attached to the document data, but the communication management server 230 verifies the validity of the electronic signature or time stamp. After confirming with the certification authority 400, it may be stored in the form information DB server 240.

  In the above embodiment, the document data is not encrypted, but the document information encrypted by the document input terminal 50 is stored in the form information DB server 240 using PKI or the like. It may be. As a result, when data is transmitted over the Internet 300, the document data is encrypted in accordance with the encryption by SSL, so that the confidentiality can be further improved.

  Further, as information that can be used for the search by the search program unit 83 in the above embodiment, the customer's name and address may be used in addition to the copy number described above. It is possible to perform a search even if the information is part information.

  In the above embodiment, at the time of searching, an electronic signature stored in the document input terminal 50 may be included in the search request and transmitted, and the search may be performed only when the electronic signature is valid.

  Further, in the document input terminal 50, the basic software unit 60 stored in the flash memory 52 may be a dedicated terminal configured by hardware in order to increase the processing speed.

  The document input terminal described in the present invention corresponds to the document input terminal 50, and the server device corresponds to the communication management server 230, the form information DB server 240, the log collection server 220, and the log information DB server 250. The operation surface described in the present invention corresponds to the configuration of the touch panel of the liquid crystal display of the document input terminal 50, the input detection unit and the generation unit correspond to the pen input program unit 62, and the providing unit includes a time synchronization unit. 65 and the electronic signature adding unit 66, the log detecting unit corresponds to the log collecting unit 69, and the internal storage area corresponds to the volatile RAM. The transmission unit described in the present invention corresponds to the wireless LAN communication unit 67 and the SSL encryption communication protocol unit 68, and the deletion unit corresponds to the form application unit 82. The search means described in the present invention corresponds to the search program unit 85, and the feature extraction means and the feature determination means correspond to the signature authentication unit 63. The conversion means described in the present invention corresponds to the character recognition / conversion FEP unit 64, and the index file generation unit corresponds to the index file generation unit 86. The first storage means described in the present invention corresponds to the image DB 241, and the second storage means corresponds to the log information DB 251.

  The document input terminal 50 described above has a computer system therein. The process of inputting, storing, and retrieving the document data described above is stored in a computer-readable recording medium in the form of a program, and the above process is performed by the computer reading and executing the program. . Here, the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

It is a block diagram which shows the structure of the document management system of this embodiment. It is the block diagram which showed the internal structure of the document input terminal of the embodiment. It is a figure showing a flow of input and storage processing of document data in the document management system of the embodiment. It is a figure showing a flow of search processing of document data in the document management system of the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 50 Document input terminal 52 Flash memory 60 Basic software part 61 OS part 62 Pen input program part 63 Signature authentication part 64 Character recognition / conversion FEP part 65 Time synchronization part 66 Electronic signature provision part 67 Wireless LAN communication part 68 SSL encryption communication protocol part 69 log collection unit 80 application software unit 81 user authentication program unit 82 form application unit 83 display program unit 84 print program unit 85 search program unit 86 index file generation unit

Claims (7)

A document input terminal capable of communicating with a server device,
An operation surface on which a user performs handwriting input;
Input detecting means for detecting input on the operation surface;
Based on the input detected by the input detection means, generation means for generating document data that maintains a handwritten state by the user in an internal storage area;
A granting unit for giving a digital signature or time stamp stored in advance to the document data stored in the internal storage area;
Log detection means for generating log information corresponding to the detection of the input detection means in the internal storage area;
Document data to which an electronic signature or a time stamp is given by the granting means, and sending means for sending log information generated by the log detecting means to the server device;
A deletion means for deleting the document data and the log information in the internal storage area after transmission to the server device;
A document input terminal comprising: Conversion means for performing character recognition from document data in a predetermined area in the document data generated by the generation means, and converting the recognized characters into text data;
An index is extracted based on the text data converted by the conversion means, identification information that can be uniquely identified is assigned to each document data, and an index file that associates the assigned identification information with the index is stored in the internal storage area. Index file generating means for generating
The transmitting means transmits the index file together with the document data and the log information to which the electronic signature or time stamp is given, to a server device,
The deleting means is
The document input terminal according to claim 1, wherein the document data, the log information, and the index file in the internal storage area are deleted.   The document input terminal according to claim 1, wherein the time stamp is issued by a time certification authority. Search means for requesting the server device to search for the document data of the user and receiving the document data searched from the server device;
Feature extraction means for extracting character features of the document data;
Character features extracted by the feature extraction unit with respect to the document data received by the search unit from the server device, and character features extracted by the feature extraction unit with respect to the document data generated by the generation unit Feature determination means for determining whether or not match and outputting a determination result;
The document input terminal according to claim 1, further comprising: A document management system for storing and managing document data input at a document input terminal in a server device,
The document input terminal is
An operation surface on which a user performs handwriting input;
Input detecting means for detecting input on the operation surface;
Based on the input detected by the input detection means, generation means for generating document data that maintains a handwritten state by the user in an internal storage area;
A granting unit for giving a digital signature or time stamp stored in advance to the document data stored in the internal storage area;
Log detection means for generating log information corresponding to the detection of the input detection means in the internal storage area;
Sending means for sending document data to which an electronic signature or a time stamp is given by the giving means and log information generated by the log detecting means to the server device;
Deleting means for deleting the document data and the log information to which the electronic signature or time stamp of the internal storage area is attached after transmission to the server device;
The server device
Receiving means for receiving the document data and the log information to which the electronic signature or time stamp transmitted from the document input terminal is attached;
First recording means for recording, in a first storage means, document data to which the electronic signature or time stamp received by the receiving means is attached;
Second recording means for recording the log information received by the receiving means in a second storage means;
A document management system comprising: A document management method for storing and managing document data input by a document input terminal having an operation surface on which a user performs handwriting input,
The document input terminal detects input on the operation surface, and based on the detected input, generates document data maintaining a handwritten state by a user in an internal storage area; and
The document input terminal gives an electronic signature or a time stamp stored in advance to document data stored in the internal storage area;
The document input terminal generating log information in response to detection of input on the operation surface in the internal storage area;
The document input terminal transmits the electronic signature or time stamped document data and the generated log information to the server device, and after transmission to the server device, the electronic signature or time stamp of the internal storage area Deleting the document data and the log information to which
The server device receives the document data to which the electronic signature or time stamp is attached and the log information transmitted from the document input terminal, and receives the received document data to which the electronic signature or time stamp is attached. Recording in the storage means and recording the received log information in the second storage means;
A document management method comprising: A control computer of a document input terminal having an operation surface for receiving a user's handwriting operation and capable of communicating with a server device,
Detecting input on the operation surface;
Generating document data maintaining a handwritten state by the user in an internal storage area based on the detected input;
Attaching a digital signature or time stamp stored in advance to document data stored in the internal storage area;
Generating log information corresponding to detection of input on the operation surface in the internal storage area;
Transmitting the document data to which the electronic signature or time stamp is given and the generated log information to the server device;
Deleting the document data and the log information to which the electronic signature or time stamp of the internal storage area is attached after transmission to the server device;
Document management program to execute.

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