JP2015201109A - Information processor, pen information processor, information processing system, and information processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor configured to transmit an area into which writing by an authenticated person is possible, to a pen information processor.SOLUTION: Authentication means of the information processor performs authentication based on handwriting information resulting from recognition of handwriting of trajectory information representing a trajectory written within an authentication area or character information resulting from character recognition of the trajectory information. If authentication in the authentication means results in identification of a legitimate person, extraction means extracts an area into which writing by the person is possible, and transmission means transmits the area extracted by the extraction means to a pen information processor by which writing into the authentication area has been performed.

Description

  The present invention relates to an information processing device, a pen information processing device, an information processing system, and an information processing program.

  In Patent Document 1, when creating a document using an electronic pen, it is intended to enable the writer to check the authority of entry and the order of entry, and fill in the document using the electronic pen. In this case, by referring to the document information file and the electronic pen information file that make up the history information file, the determination means can determine the authority of entry by the electronic pen from the pen ID of the electronic pen and the electronic pen information file. The determination means determines the order of entry in the document from the pen ID, the document ID assigned to the document, and the document information file, and the determination result is transmitted to the electronic pen by the creation means via the communication control device. Is disclosed.

  Patent Document 2 has an object to enable determination of whether a legitimate user is using a pen device, a terminal device having the pen device, a pen device ID, and characteristics of the legitimate user An identification information management server having a pen information DB that stores correspondence with information is connected to the network, and when the pen device is used, the communication unit of the terminal device transmits the ID to the identification information management server. On the other hand, in the identification information management server, the DB management unit acquires feature information corresponding to the ID from the pen information DB, and the communication unit transmits it to the terminal device. It is disclosed to determine whether a legitimate user is using a pen device based on the feature information obtained and the feature information acquired by the pen device.

  In patent document 3, in the information processing system using a digital pen, it is an object to provide a technology that can realize more detailed access restriction in units of a form, a management device, a group, and an electronic pen. An access request including the electronic pen identification information and the page address assigned to each form is received via the network, and the page address and the form identification information are stored in association with each other. The form identification information corresponding to the address is acquired, and the electronic pen identification information and the identification information of the group to which the electronic pen belongs are stored in association with each other to correspond to the electronic pen identification information. Acquires group identification information, and responds to access requests from electronic pen identification information, form identification information and group identification information, and electronic pens. Based on the third table whether it is a scan permission or access denied is set, is possible to determine whether access is permitted is disclosed to the access request.

  Patent Document 4 has an object to provide an electronic pen authentication device capable of performing fine authentication using an electronic pen. A user identification information receiving unit that receives user identification information and a user identified by the user identification information An electronic pen identification information receiving unit for receiving electronic pen identification information for identifying an electronic pen used by the user, and written information reception for receiving written information related to the description when the user writes a name using the electronic pen A correspondence information storage unit that stores correspondence information that associates at least the user identification information and the electronic pen identification information, and authentication using the user identification information and authentication using the electronic pen identification information using the correspondence information An authentication unit that performs authentication using the description information is disclosed.

  Patent Document 5 has an object to provide an electronic pen fraud determination device that can determine whether or not a user who should describe a document describes the document when the document is described using the electronic pen. Correspondence information associating a user identification information receiving unit that receives identification information, a description information receiving unit that receives description information that is information described with an electronic pen, user identification information, and past description information corresponding to the user identification information Is used to identify past description information corresponding to the user identification information, and using the past description information and the description information, the description about the description information is the user identification information. It is disclosed to include a determination unit that determines whether the description is by a user to be identified, and a determination result information output unit that outputs a determination result.

JP 2003-345945 A JP 2007-004706 A JP 2010-191735 A JP 2009-2111340 A JP 2009-271714 A

  An object of the present invention is to provide an information processing apparatus, a pen information processing apparatus, an information processing system, and an information processing program that transmit an area writable by an authenticated person to a pen information processing apparatus. .

The gist of the present invention for achieving the object lies in the inventions of the following items.
The invention according to claim 1 performs authentication based on handwriting information that is a result of recognizing a handwriting of trajectory information indicating a trajectory described in the authentication area or character information that is a result of character recognition of the trajectory information. And when the authentication result by the authentication means is a valid person, an extraction means for extracting an area writable by the person, and the area extracted by the extraction means for the pen information described above An information processing apparatus comprising transmission means for transmitting to a processing apparatus.

  According to a second aspect of the present invention, there is provided a receiving unit that receives an area writable by the pen information processing apparatus from the information processing apparatus according to the first aspect, and the writing by the pen information processing apparatus is a writing in the area The pen information processing apparatus includes: a determination unit that determines whether or not there is a warning unit that issues a warning when the determination unit determines that the writing is not in the area.

  According to a third aspect of the present invention, there is provided transmission means for transmitting the trajectory information of the trajectory by the pen information processing apparatus and an instruction to perform authentication to the information processing apparatus according to the first aspect. The pen information processing apparatus according to claim 1.

  According to a fourth aspect of the present invention, the determination unit determines whether or not an authentication period that is a period during which writing can be performed in the area has passed, and the warning unit has passed the authentication period by the determination unit. If it is determined that the authentication period has passed, a warning indicating that the authentication period has passed is issued, and the trajectory information of the trajectory by the pen information processing device and an instruction to perform re-authentication are transmitted to the information processing device according to claim 1. The pen information processing apparatus according to claim 2, further comprising a second transmission unit configured to perform the transmission.

  The invention of claim 5 performs authentication based on handwriting information that is a result of recognizing handwriting of trajectory information indicating a trajectory described in the authentication area or character information that is a result of character recognition of the trajectory information. And when the authentication result by the authentication means is a valid person, an extraction means for extracting an area writable by the person, and the area extracted by the extraction means for the pen information described above An information processing device having a transmission means for transmitting to the processing device, an accepting means for accepting an area writable by the pen information processing apparatus from the information processing apparatus, and writing by the pen information processing apparatus A determination unit that determines whether or not the writing is performed, and a warning unit that issues a warning when the determination unit determines that the writing is not in the area. An information processing system characterized by comprising a down information processing apparatus.

  The invention according to claim 6 authenticates the computer based on handwriting information that is a result of recognizing a handwriting of trajectory information indicating a trajectory described in the authentication area or character information that is a result of character recognition of the trajectory information. If the authentication result obtained by the authentication means is a valid person, the extraction means for extracting an area writable by the person and the area extracted by the extraction means are described above. An information processing program for causing a pen information processing apparatus to function as a transmission unit.

  According to a seventh aspect of the present invention, there is provided a receiving unit that accepts an area writable by the pen information processing apparatus according to the second aspect from the information processing apparatus according to the first aspect, and writing by the pen information processing apparatus. And an information processing program for functioning as warning means for issuing a warning when the determination means determines that the writing is not in the area. It is.

  According to the information processing apparatus of the first aspect, an area writable by an authenticated person can be transmitted to the pen information processing apparatus.

  According to the pen information processing apparatus of the second aspect, a warning can be issued for writing to areas other than the writable area.

  According to the pen information processing apparatus of the third aspect, the trajectory information and an instruction to perform authentication can be transmitted to the information processing apparatus.

  According to the pen information processing apparatus of the fourth aspect, a warning indicating that the authentication period has passed can be issued, and an instruction to perform authentication again can be transmitted.

  According to the information processing system of the fifth aspect, a warning can be issued for writing to areas other than the writable area.

  According to the information processing program of the sixth aspect, an area writable by an authenticated person can be transmitted to the pen information processing apparatus.

  According to the information processing program of the seventh aspect, a warning can be issued for writing to an area other than the writable area.

It is a conceptual module block diagram about the structural example of this Embodiment. It is explanatory drawing which shows the system configuration example which implement | achieves this Embodiment. It is explanatory drawing which shows the example of the electronic pen paper on which the information image was printed. It is explanatory drawing which shows the structural example in an electronic pen. It is a flowchart which shows the process example by an electronic pen. It is explanatory drawing which shows the example of the information image (code pattern image) handled by this Embodiment. It is explanatory drawing which shows the example of the encoding process of the information in this Embodiment, and the production | generation process example of an information image (dot code image). It is a flowchart which shows the process example by this Embodiment. It is a flowchart which shows the process example by this Embodiment. It is a flowchart which shows the process example by this Embodiment. It is explanatory drawing which shows the process example by this Embodiment. It is explanatory drawing which shows the example of a data structure of a field information table. It is explanatory drawing which shows the example of a data structure of an authority information table. It is explanatory drawing which shows the example of a data structure of a handwriting appraisal information table. It is explanatory drawing which shows the process example by this Embodiment. It is a block diagram which shows the hardware structural example of the computer which implement | achieves this Embodiment.

Hereinafter, an example of a preferred embodiment for realizing the present invention will be described with reference to the drawings.
FIG. 1 shows a conceptual module configuration diagram of a configuration example of the present embodiment.
The module generally refers to components such as software (computer program) and hardware that can be logically separated. Therefore, the module in the present embodiment indicates not only a module in a computer program but also a module in a hardware configuration. Therefore, the present embodiment is a computer program for causing these modules to function (a program for causing a computer to execute each procedure, a program for causing a computer to function as each means, and a function for each computer. This also serves as an explanation of the program and system and method for realizing the above. However, for the sake of explanation, the words “store”, “store”, and equivalents thereof are used. However, when the embodiment is a computer program, these words are stored in a storage device or stored in memory. It is the control to be stored in the device. Modules may correspond to functions one-to-one, but in mounting, one module may be configured by one program, or a plurality of modules may be configured by one program, and conversely, one module May be composed of a plurality of programs. The plurality of modules may be executed by one computer, or one module may be executed by a plurality of computers in a distributed or parallel environment. Note that one module may include other modules. Hereinafter, “connection” is used not only for physical connection but also for logical connection (data exchange, instruction, reference relationship between data, etc.). “Predetermined” means that the process is determined before the target process, and not only before the process according to this embodiment starts but also after the process according to this embodiment starts. In addition, if it is before the target processing, it is used in accordance with the situation / state at that time or with the intention to be decided according to the situation / state up to that point. When there are a plurality of “predetermined values”, they may be different values, or two or more values (of course, including all values) may be the same. In addition, the description having the meaning of “do B when it is A” is used in the meaning of “determine whether or not it is A and do B when it is judged as A”. However, the case where it is not necessary to determine whether or not A is excluded.
In addition, the system or device is configured by connecting a plurality of computers, hardware, devices, and the like by communication means such as a network (including one-to-one correspondence communication connection), etc., and one computer, hardware, device. The case where it implement | achieves by etc. is included. “Apparatus” and “system” are used as synonymous terms. Of course, the “system” does not include a social “mechanism” (social system) that is an artificial arrangement.
In addition, when performing a plurality of processes in each module or in each module, the target information is read from the storage device for each process, and the processing result is written to the storage device after performing the processing. is there. Therefore, description of reading from the storage device before processing and writing to the storage device after processing may be omitted. Here, the storage device may include a hard disk, a RAM (Random Access Memory), an external storage medium, a storage device via a communication line, a register in a CPU (Central Processing Unit), and the like.

  The information processing system using the electronic pen 100 and the information processing apparatus 160 according to the present embodiment limits the area on the writable paper by the electronic pen 100. As shown in the example of FIG. Reference numeral 100 denotes a reading module 105, a field information receiving module 110, an information conversion module 115, an authority information holding module 120, an authority determining module 125, an external transmission module 130, an authentication request module 135, an authentication status holding module 140, and a written information holding module 145. The electronic pen side management module 150 and the communication module 155. The information processing apparatus 160 includes a communication module 165, a stroke data analysis module 170, an information processing apparatus side management module 175, an authentication module 180, and an instruction sheet file. Field management module 185, rights information management module 190, and a field determination information generation module 195. The electronic pen 100 and the information processing apparatus 160 are connected via a communication line. This communication line may be wired, wireless, or a combination thereof. This embodiment is used particularly when an area that can be described by each user is set, but a plurality of users may use the same electronic pen 100.

The reading module 105 is connected to the field information receiving module 110. The reading module 105 reads the area of the writing position when the electronic pen 100 writes on the electronic pen paper on which the information image is drawn. Specifically, it is configured by an image reading sensor or the like. Note that the electronic pen paper only needs to be a paper on which an information image is drawn, and for example, an instruction document, a form (specifically, a form 1100 shown in the example of FIG. 11), or the like.
The field information receiving module 110 is connected to the reading module 105 and the information conversion module 115. The field information receiving module 110 converts the image information read by the reading module 105 into coordinate information.
The information conversion module 115 is connected to the field information receiving module 110, the description information holding module 145, and the electronic pen side managing module 150. The information conversion module 115 uses the stroke information written on the electronic pen paper to determine in which area (hereinafter also referred to as a field) of the electronic pen paper a character or the like is written.
Details of the reading module 105, the field information receiving module 110, the information conversion module 115, the written information holding module 145, the electronic pen paper, and the like will be described later with reference to FIGS.

The authority information holding module 120 is connected to the description information holding module 145 and the electronic pen side management module 150. When the user who is the writer (the owner of the electronic pen 100 at the time of writing) using the electronic pen 100 is authenticated on the information processing apparatus 160 side, the authority information holding module 120 receives data (field) Data generated by the determination information generation module 195). The data to be held includes field information, instruction name, instruction number and the like that can be described by the user.
The authority determination module 125 is connected to the external transmission module 130, the description information holding module 145, and the electronic pen side management module 150. The authority determination module 125 determines whether the writing on the sheet by the electronic pen 100 is writing in a field where the user of the electronic pen 100 can write. Information relating to a writable field is extracted from the authority information holding module 120. Specifically, it may be determined whether or not the coordinates in which writing has been performed are included in the field.
Further, the authority determination module 125 may determine whether or not an authentication period, which is a period during which writing is possible in the writable field, has passed. The authentication period refers to a predetermined period from the start, and may be started from the time when the authentication instruction is given, or may be started from when writing is no longer performed.
The authority determining module 125 uses the field information read by the reading module 105 and the data held by the authority information holding module 120 to determine whether the field is described in a field that can be described. Operates immediately after entry by the user. In the case of NG, the external transmission module 130 is requested to make an external call.
The external transmission module 130 is connected to the authority determination module 125. The external transmission module 130 issues a warning when it is determined by the authority determination module 125 that the writing is not in a field that can be written by the user.
Further, when the authority determination module 125 determines that the authentication period has passed, the external transmission module 130 may issue a warning indicating that the authentication period has passed.
Here, the warning may be anything that informs the user of the electronic pen 100 that there is an error. Visual (light, etc.), auditory (sound), tactile (vibration, etc.), storage of the pen part ( Other external transmissions (signals that mean errors), such as making writing impossible).

The authentication request module 135 is connected to the authentication status holding module 140. The authentication request module 135 requests to start authentication. Specifically, a user presses a button for switching the pen to the authentication mode, a gesture for shifting to the authentication mode, a description in a predetermined field of the electronic pen paper, and the like are detected.
The authentication status holding module 140 is connected to the authentication request module 135 and the electronic pen side management module 150. The authentication status holding module 140 holds whether or not it is in an authenticated state. In addition, which paper number is authenticated is stored.
The description information holding module 145 is connected to the information conversion module 115, the authority information holding module 120, the authority determining module 125, and the electronic pen side managing module 150. The description information holding module 145 holds information described by the electronic pen 100.

The electronic pen side management module 150 is connected to the information conversion module 115, the authority information holding module 120, the authority determining module 125, the authentication status holding module 140, the written information holding module 145, and the communication module 155. The electronic pen management module 150 controls the entire operation of the electronic pen 100 side. Based on the read information and the status (information indicating whether or not it is authenticated), it is determined whether to transmit information to the information processing apparatus 160 or to perform processing in the electronic pen 100.
The electronic pen side managing module 150 transmits the locus information of the locus by the electronic pen 100 and an instruction to perform authentication to the information processing apparatus 160 via the communication module 155. This trajectory may be limited to a trajectory in a predetermined field in the paper.
Then, the electronic pen side management module 150 receives a field that can be written by the electronic pen 100 from the information processing apparatus 160 via the communication module 155.
Further, the electronic pen side managing module 150 may transmit the trajectory information of the trajectory by the electronic pen 100 and an instruction to perform re-authentication to the information processing apparatus 160 via the communication module 155. Here, the “trajectory trajectory information by the electronic pen 100” transmitted by the electronic pen side managing module 150 is trajectory information for writing performed after the authentication period has passed. This writing for authentication may be performed on the same sheet, or may be performed on a different sheet (for example, a sheet dedicated to authentication).
The communication module 155 is connected to the electronic pen side management module 150 and the communication module 165 of the information processing apparatus 160. The communication module 155 transmits data to the information processing device 160 based on an instruction from the electronic pen side management module 150. When data is transmitted from the information processing device 160, the communication module 155 transmits the data to the electronic pen side management module 150. 150.

The communication module 165 is connected to the stroke data analysis module 170, the information processing apparatus side management module 175, the field determination information generation module 195, and the communication module 155 of the electronic pen 100. The communication module 165 transmits the data generated by the field determination information generation module 195 to the electronic pen 100 based on an instruction from the information processing apparatus side management module 175, and the data has been transmitted from the electronic pen 100. In this case, the data is transferred to the stroke data analysis module 170, the information processing apparatus side management module 175, and the like.
The stroke data analysis module 170 is connected to the communication module 165 and the information processing apparatus side management module 175. The stroke data analysis module 170 analyzes the data sent from the electronic pen 100 and passes the analyzed information to the information processing apparatus side administration module 175. If it is during user authentication, paper information and user stroke information are received. Character information and handwriting information are created from the stroke information. An existing method may be used as a method of generating character information and handwriting information from the stroke information. The stroke information refers to information described by the user with the electronic pen 100. It is used to mean a set of line segments, not information as characters. For example, it is a group of position information (coordinate information) arranged in time series, and is synonymous with trajectory information in this embodiment.

The information processing apparatus side management module 175 is connected to the communication module 165, the stroke data analysis module 170, the authentication module 180, the instruction field management module 185, the authority information management module 190, and the field determination information generation module 195. The information processing apparatus side management module 175 transmits the field extracted by the field determination information generation module 195 to the electronic pen 100 described on the paper via the communication module 165. Note that the field transmitted by the information processing apparatus side management module 175 includes at least identification information for identifying the field, or information indicating the range of the field (for example, coordinate information on the upper left and lower right of the rectangle). .
Specifically, for example, the information processing apparatus-side management module 175 collects information on authentication, collection of field information existing on paper, and user authority for each field using paper information, user name, and stroke information. . When the authentication is successful, the information to be transferred to the electronic pen 100 is passed to the field determination information generation module 195, and when the authentication fails, information for returning an error to the electronic pen 100 is generated.

  The authentication module 180 is connected to the information processing apparatus side administration module 175. The authentication module 180 performs authentication based on the handwriting information that is the result of recognizing the handwriting of the stroke information indicating the locus described in the authentication field in the paper or the character information that is the result of character recognition of the stroke information. . Then, using existing technology, the user is authenticated and the user is identified. For example, handwriting information is obtained by extracting handwriting features (information corresponding to so-called handwriting) from stroke information, and matching user identification information with a dictionary that stores the handwriting features unique to that user. The user identification information corresponding to the handwriting may be specified. In addition, user identification information corresponding to a character string (for example, a user name) that is character information may be specified from a table in which user identification information is associated with the user name. Either one of handwriting information and character information may be used for authentication, or both pieces of information may be used so that even if a pseudonym is used. When both pieces of information are used, the user identification information specified by each piece of information may be authenticated as a valid user.

The instruction sheet field management module 185 is connected to the information processing apparatus side administration module 175. The instruction sheet field management module 185 holds field information of each electronic pen paper (instruction sheet) registered in advance, information on authority type of each field, and the like. When an instruction ID (IDentification, information for uniquely identifying an instruction in this embodiment) is received, a set of field information and authority type information is returned. The authority type is information indicating the authority of the user who uses the electronic pen 100. For example, there is information indicating an operator and an approver. There may be a plurality of approvers and workers. For example, there are an approver 1, an approver 2,. Moreover, you may provide the authority more than an approver, for example, a payment person, etc. other than an operator and an approver. Without being limited to these, as the authority type, it is possible to set the number of authorities, authority name, authority content, and the like.
The authority information management module 190 is connected to the information processing apparatus side administration module 175. The authority information management module 190 holds a set of instruction ID, user name, and authority. When the user name is accepted, information on the authority type is returned.
The field determination information generation module 195 is connected to the communication module 165 and the information processing apparatus side management module 175. When the authentication result by the authentication module 180 is a valid user, the field determination information generation module 195 extracts a field that can be written by the user. For example, the field determination information generation module 195 generates a set of writable field information and instruction name, and transmits the set to the electronic pen 100.

FIG. 2 is an explanatory diagram showing a system example in the case of realizing the present embodiment.
The information processing device 160A and the information processing device 160B are connected via a communication line 299 (a communication line that may be wired, wireless, or a combination thereof). The electronic pen 100 is connected to the information processing apparatus 160A. Note that the information processing apparatus 160 illustrated in FIG. 1 is constructed in the information processing apparatus 160A or the information processing apparatus 160B. In other words, the electronic pen 100 and the information processing device 160 may be directly connected like the electronic pen 100 and the information processing device 160A, or the information processing device 160A (in this case) like the electronic pen 100 and the information processing device 160B. The information processing device 160A may be connected via a mediating function only.
In addition to the processing shown in the example of FIG. 1, the information processing apparatus 160 displays the trajectory information as a document (electronic pen paper) when writing is performed on the electronic pen paper using the electronic pen 100. A process of superimposing the original electronic document used for printing) may be performed. That is, when a paper is written on an electronic pen paper, the same description is also made on the corresponding electronic document.

FIG. 3 is an explanatory diagram showing an example of the electronic pen paper 310 on which an information image is printed according to the present embodiment. A dot code image is printed on the electronic pen paper 310. For example, the area 320 in the electronic pen paper 310 is printed with a dot code image as shown in the example of FIG. The dot code image represents the paper ID assigned to each electronic pen paper 310 and the position information (X, Y coordinate values) on the paper.
For example, the paper ID is a numerical value in a 32-bit space. In the case of character string notation, it is represented by a hexadecimal character string. Therefore, the range of the paper ID is “00000000” to “FFFFFFFF”.

FIG. 4 is an explanatory diagram illustrating a configuration example in the electronic pen 100.
An outline will be described. When writing with the electronic pen 100 on the electronic pen paper 499, when the pressure sensor is turned on, a dot code image on the electronic pen paper 499 is picked up, decoded, and the paper ID of the electronic pen paper 499 and the electronic pen paper 499. The upper position information (X, Y coordinate values) is taken out and stored in the memory. Then, the information stored in the memory is transmitted to the information processing apparatus 160 via the communication circuit. The pen pressure ON information may be stored in the memory as information that the pressure sensor is turned on, and the pen pressure OFF information may be stored as information that the pressure sensor is turned off. Moreover, you may make it include the information regarding the time when each information generate | occur | produced (it may be a year, a month, a day, second, the second or less, or these combination). Each module in the electronic pen 100 shown in the example of FIG. 1 is realized by the configuration shown in the example of FIG.

Next, this will be described in detail. As illustrated, the electronic pen 100 includes a control circuit 401 that controls the operation of the entire pen. Further, the control circuit 401 includes an image processing unit 401a that processes a dot code image detected from an input image, and a data processing unit 401b that extracts a paper ID and position information from the processing result.
The control circuit 401 is connected to a pressure sensor 402 that detects a writing operation by the electronic pen 100 by a pressure applied to the pen tip 409. In addition, an infrared LED 403 that irradiates infrared light on the paper and an infrared CMOS 404 that inputs an image are also connected. Further, an information memory 405 for storing paper ID and position information, a communication circuit 406 for communicating with an external device, a battery 407 for driving a pen, and pen identification information (pen ID) are stored. A pen ID memory 408 is also connected.

Here, an outline of the operation of the electronic pen 100 will be described.
When writing with the electronic pen 100 is performed, the pressure sensor 402 connected to the pen tip 409 detects the writing operation. As a result, the infrared LED 403 is turned on, and the infrared CMOS 404 captures an image on the sheet by the CMOS sensor.
Note that the infrared LED 403 is pulse-lit in synchronization with the shutter timing of the CMOS sensor in order to suppress power consumption.
The infrared CMOS 404 uses a global shutter CMOS sensor that can simultaneously transfer captured images. A CMOS sensor having sensitivity in the infrared region is used. In order to reduce the influence of disturbance, a visible light cut filter is disposed on the entire surface of the CMOS sensor. The CMOS sensor captures an image with a period of about 70 fps to 100 fps (frame per second). The image sensor is not limited to a CMOS sensor, and other image sensors such as a CCD may be used.

When the image thus captured is input to the control circuit 401, the control circuit 401 acquires a dot code image from the captured image. Then, it is decoded to obtain the paper ID and position information embedded in the dot code image.
Hereinafter, the operation of the control circuit 401 at this time will be described.
FIG. 5 is a flowchart illustrating an example of processing performed by the electronic pen 100 (control circuit 401).
In step S501, the image processing unit 401a inputs an image.
In step S502, processing for removing noise included in the image is performed. Here, the noise includes variations in CMOS sensitivity, noise generated by an electronic circuit, and the like. What processing is performed to remove noise should be determined according to the characteristics of the imaging system of the electronic pen 100. For example, sharpening processing such as blurring processing or unsharp masking can be applied.
In step S503, the image processing unit 401a detects a dot pattern (dot image position) from the image. For example, the dot pattern portion and the background portion are separated by binarization processing, and the dot pattern can be detected from each binarized image position. When a binarized image contains a lot of noise components, for example, it is necessary to combine a filter process for determining a dot pattern based on the area and shape of the binarized image.

In step S504, the image processing unit 401a converts the detected dot pattern into digital data on a two-dimensional array. For example, on a two-dimensional array, a position where there is a dot is converted to “1”, and a position where there is no dot is converted to “0”. The digital data on this two-dimensional array is transferred from the image processing unit 401a to the data processing unit 401b.
Next, in step S505, the data processing unit 401b detects a bit pattern including a combination of two dots illustrated in FIG. 6A from the received digital data. For example, the bit pattern can be detected by moving the boundary position of the block corresponding to the bit pattern on the two-dimensional array and detecting the boundary position so that the number of dots included in the block is two. .
When the bit pattern is detected in this way, in step S506, the data processing unit 401b detects the synchronization code by referring to the type of the bit pattern.
In step S507, the identification code and the position code are detected based on the positional relationship from the synchronization code.
Thereafter, in step S508, the data processing unit 401b decodes the identification code to obtain the paper ID, and decodes the position code to obtain position information. About identification code, paper ID is obtained by performing RS decoding processing. On the other hand, for the position code, position information is obtained by comparing the position of the read partial series with the M series used at the time of image generation.

Next, the electronic document for storing written information will be described. Hereinafter, when simply referred to as an electronic document, it refers to an electronic document for storing written information.
The writing information storing electronic document is data in which contents written on the electronic pen paper 499 by the electronic pen 100 are collected together with field definitions. Consists of:
(1) Paper ID: Paper ID assigned to the electronic pen paper associated with the writing information storing electronic document
(2) Field definition: Field definition used for processing writing to the electronic document for storing the writing information.
(3) Form image: Form image printed on the electronic document for storing written information

Next, the code pattern that is the basis of the dot code image generated in the present embodiment will be described.
FIG. 6 is an explanatory diagram showing an example of an information image (code pattern image) handled in the present embodiment.
First, the bit pattern constituting the code pattern will be described.
FIG. 6A shows an example of bit pattern arrangement.
A bit pattern is the minimum unit of information embedding. Here, as shown in the example of FIG. 6A, bits are arranged at two locations selected from nine locations. In the figure, black squares indicate positions where bits are arranged, and hatched squares indicate positions where bits are not arranged. There are 36 (= 9C2) combinations for selecting 2 locations out of 9 locations. Therefore, 36 kinds (about 5.2 bits) of information can be expressed by such an arrangement method.
However, the paper ID and the position information are expressed using 32 (5 bits) of these 36 patterns.
Incidentally, the minimum square shown in the example of FIG. 6A has a size of 2 dots × 2 dots at 600 dpi. Since the size of one dot at 600 dpi is 0.0423 mm, one side of this minimum square is 84.6 μm (= 0.0423 mm × 2). The larger the dots that make up the code pattern, the more likely it is to be noticeable. However, if it is too small, printing with a printer becomes impossible. Therefore, the above-described value larger than 50 μm and smaller than 100 μm is adopted as the dot size. Thereby, it is possible to form dots of an optimum size that can be printed by the printer. That is, 84.6 μm × 84.6 μm is the minimum size that can be stably formed by the printer.
In addition, by making the dot such a size, one side of one bit pattern becomes about 0.5 (= 0.0423 × 2 × 6) mm.
A code pattern composed of such bit patterns will be described.
FIG. 6B shows an example of code pattern arrangement.
Here, the minimum square shown in the example of FIG. 6B corresponds to the bit pattern shown in the example of FIG. That is, the identification code obtained by encoding the paper ID is embedded using 16 (= 4 × 4) bit patterns. Also, the X position code obtained by encoding the position information in the X direction and the Y position code obtained by encoding the position information in the Y direction are each embedded using four bit patterns. Further, a synchronization code for detecting the position and rotation of the code pattern is embedded in the upper left corner using one bit pattern.
Since the size of one code pattern is equal to the width of five bit patterns, it is about 2.5 mm. In the present embodiment, a code pattern image obtained by imaging the code pattern generated in this way is arranged on the entire sheet surface.

FIG. 7 is an explanatory diagram showing an example of information encoding processing and an example of information image (dot code image) generation processing in the present embodiment.
First, paper ID encoding will be described.
For encoding the paper ID, an RS (Reed Solomon) code of a block encoding method is used. As described with reference to the example of FIG. 6, in this embodiment, information is embedded using a bit pattern that can represent 5-bit information. Therefore, since an information error also occurs in units of 5 bits, an RS code having good coding efficiency is used in the block coding method. However, the encoding method is not limited to the RS code, and other encoding methods such as a BCH code can also be used.
As described above, in this embodiment, information is embedded using a bit pattern having a 5-bit information amount. Therefore, the block length of the RS code needs to be 5 bits. For this reason, the paper ID is divided into blocks of 5 bits. In the example of FIG. 7, the first block “00111” and the second block “01101” are cut out from the paper ID “0011101101001.
Then, RS encoding processing is performed on the blocked paper ID. In the example of FIG. 7, RS coding is performed after blocking such as “blk1”, “blk2”, “blk3”, “blk4”,.
By the way, in the present embodiment, the paper ID is divided into 16 (= 4 × 4) blocks. Therefore, the number of code blocks in the RS code can be 16.
Further, the number of information blocks can be designed according to an error occurrence state. For example, if the number of information blocks is 8, RS (16, 8) code is obtained. This code can correct even if an error of 4 blocks (= (16−8) / 2) occurs in the encoded information. Moreover, if the position of the error can be specified, the correction capability can be further improved. In this case, the amount of information stored in the information block is 40 bits (= 5 bits × 8 blocks), of which 32 bits are used.

Next, encoding of position information will be described.
For encoding the position information, an M-sequence code, which is a kind of pseudo-random sequence, is used. Here, the M sequence is a sequence of the maximum period that can be generated by a K-stage linear shift register, and has a sequence length of 2K-1. Arbitrary consecutive K bits taken out from the M sequence have a property that they do not appear at other positions in the same M sequence. Therefore, the position information can be encoded by using this property.
By the way, in the present embodiment, a necessary M-sequence order is obtained from the length of position information to be encoded, and an M-sequence is generated. However, if the length of the position information to be encoded is known in advance, it is not necessary to generate the M sequence each time. That is, a fixed M sequence may be generated in advance and stored in a memory or the like.
For example, it is assumed that an M sequence (K = 13) having a sequence length of 8191 is used.
In this case, since the position information is also embedded in units of 5 bits, 5 bits are extracted from the M series having a sequence length of 8191 and blocked. In the example of FIG. 7, the M sequence “11010011011010...” Is blocked by 5 bits.

  Thus, in this embodiment, different encoding methods are used for position information and paper ID. This is because it is necessary to set the paper ID detection capability to be higher than the position information detection capability. That is, since the position information is information for acquiring the position of the paper surface, even if there is a part that cannot be decoded due to noise or the like, the part is lost and does not affect the other part. On the other hand, if the paper ID fails to be decrypted, it is impossible to detect the target reflecting the written information. Further, with such a configuration, it is possible to minimize the image reading range when the position information and the paper ID are decoded. That is, when an encoding method having a boundary such as an RS code is used for position information, it is necessary to read the code between the boundaries when decoding it, so the range for reading an image is the example of FIG. 6B. The area needs to be twice as large as the indicated area. However, by using the M series, it is possible to have a configuration in which an area having the same size as the area shown in the example of FIG. This is because the position information can be decoded from an arbitrary partial sequence of the M sequence due to the nature of the M sequence. That is, when decoding the paper ID and the position information, it is necessary to read the area having the size shown in the example of FIG. 6B. The reading position is shown in the example of FIG. 6B. There is no need to match the boundaries. The position information can be decoded from a partial series at an arbitrary position of the M series. In the paper ID, since the same information is arranged on the entire surface of the paper, even if the reading position is deviated from the boundary illustrated in the example of FIG. 6B, the original information is obtained by rearranging the pieces of the read information. Can be restored.

As described above, after the paper ID is divided into blocks, it is encoded with the RS code, and when the position information is encoded with the M series and then divided into blocks, the blocks are synthesized as shown in the figure. The That is, these blocks are developed on a two-dimensional plane in the format shown in the figure. The format shown in the example of FIG. 7 corresponds to the format shown in the example of FIG. That is, a black square means a synchronization code.
Further, “1”, “2”, “3”, “4”,... Arranged in the horizontal direction represent X position codes, and “1”, “2”, “3”, “ 4 ”,... Mean Y position codes. The position code is indicated by a number corresponding to the coordinate position because different information is arranged if the position of the paper is different. On the other hand, the shaded squares represent the identification codes. Since the same information is arranged even if the position of the sheet is different, the identification codes are all indicated by the same mark.
By the way, as can be seen from the figure, there are four bit patterns between two synchronization codes. Therefore, 20 (= 5 × 4) -bit M-sequence partial sequences can be arranged. If a 13-bit partial sequence is extracted from the 20-bit partial sequence, it is possible to specify which partial sequence in the whole (8191) the 13 bits are. As described above, when 13 bits out of 20 bits are used for specifying the position, it is possible to detect or correct the extracted 13-bit error using the remaining 7 bits. That is, it is possible to detect and correct errors by confirming 20-bit consistency using the same generator polynomial as that used when generating the M-sequence.
Thereafter, the bit pattern in each block is imaged by referring to the dot image. Then, an output image representing information with dots as shown on the rightmost in the example of FIG. 7 is generated.

Hereinafter, the description will be divided into three flowcharts.
(1) Flow until authentication (Fig. 8)
(2) Flow of writing after authentication (Fig. 9)
(3) Flow of re-authentication (Fig. 10)
FIG. 8 is a flowchart showing an example of processing according to this embodiment. The user obtains the electronic pen paper as an instruction and performs the first work (describes the name and other characters so that the user is authenticated). A processing example for the work will be shown. The electronic pen 100 performs processing from step S802 to step S812, from step S834 to step S838, from step S862 to step S864, and from the step S822 to step S832, and from step S840 to step S848, the information processing apparatus 160 Process.
In step S802, an authentication request is implemented.
In step S804, the authentication status holding module 140 changes during authentication and resets the authority information holding module 120.
In step S806, the user writes on the paper.
In step S808, the field information receiving module 110 receives information (including a paper number) from the reading module 105.
In step S810, the information conversion module 115 converts the information into field information.
In step S812, the electronic pen side management module 150 transmits information other than the paper number to the information processing apparatus 160.

In step S822, the information processing apparatus-side governing module 175 requests the stroke data analysis module 170 to analyze the stroke information.
In step S824, the stroke data analysis module 170 breaks down into character information (user information), instruction information, and handwriting information.
In step S826, it is determined whether or not the information is described in the authentication field. If it is described, the process proceeds to step S828. Otherwise, the process proceeds to step S832.
In step S828, the authentication module 180 performs authentication using character information and handwriting information. If the authentication is OK, the process proceeds to step S830, and if the authentication is NG, the process proceeds to step S832.
In step S830, it is determined whether or not the authentication field matches the authority of the writer. If they match, the process proceeds to step S840, and otherwise the process proceeds to step S832.
In step S832, the information processing apparatus-side management module 175 returns authentication NG to the electronic pen 100 side.

In step S834, the electronic pen side management module 150 sets an error in the authentication status holding module 140.
In step S836, the authentication status holding module 140 changes to an error.
In step S838, an error is transmitted from the external transmission module 130 to the outside.

In step S840, user information and form information are passed to the instruction sheet field management module 185.
In step S842, the instruction sheet field management module 185 returns each field information of the form to the information processing apparatus side managing module 175.
In step S844, user authority information for the instruction is obtained from the user information and the instruction information.
In step S846, the field determination information generation module 195 generates a table.
In step S848, the information processing apparatus-side management module 175 transmits field determination information to the electronic pen 100 side.

In step S862, the electronic pen side managing module 150 stores the received data and paper number as a set in the authority information holding module 120.
In step S864, the authentication status holding module 140 changes to authentication OK.

The flow up to authentication will be described below using a specific example. Assume that the user X performs an operation on the instruction type S and the instruction number 1.
(1) The user X presses an authentication mode button provided in the electronic pen 100. The electronic pen 100 switches to the authentication mode and waits for input.
(2) User X writes the user name “X” on the sheet of instruction number 1 of the instruction type S.
(3) When the description is completed, data is transmitted from the electronic pen 100 to the information processing device 160. The data to be transmitted are the stroke information of the user X, the type of instruction (read from paper, this time S), and the number of the instruction (read from paper, this time 1). The position information on the paper described above corresponds to the stroke information, and the instruction type and instruction ID are included in the paper ID.
(4) The information processing apparatus 160 converts the stroke information of the user X into handwriting information of the user name “X” (character recognition result) and “X”, and authenticates. When the authentication of the right person is completed, the field information corresponding to the authority that the user X can write for the instruction type S is extracted.
After the extraction, the information processing apparatus 160 transmits data to the electronic pen 100. As data to be transmitted at this time, a field number (eg, 1, 2, 5, etc.) that can be written, an instruction type (S), and an instruction number (1) are sent.
(5) The electronic pen 100 stores the data transmitted from the information processing device 160 and prepares for the next input.
An error may be given when authentication is performed by describing fields other than authentication. Then, the external transmission module 130 may issue a warning indicating “Described in a field other than authentication”.

FIG. 9 is a flowchart showing an example of processing according to the present embodiment. A flow until the information written on the paper is held after the authentication is completed will be described.
In step S902, the user writes on the paper.
In step S904, the read module 105 reads the written information.
In step S906, the field information receiving module 110 receives information (including a paper number) from the reading module 105.
In step S908, the information conversion module 115 converts it into field information.
In step S910, it is determined whether or not the paper number is an authenticated instruction. If it is an authenticated instruction, the process proceeds to step S912. Otherwise, the process proceeds to step S916.
In step S912, it is determined whether or not the field is registered as a writable field in the authority information holding module 120. If it is registered, the process proceeds to step S914. Otherwise, the process proceeds to step S916.
In step S914, writing is processed.
In step S916, an error is transmitted from the external transmission module 130 to the outside.

Hereinafter, the flow in the case where the field 1 or the field 3 is described under the above conditions (recordable fields 1, 2, 5) will be described as an example.
(A) When described in field 1 of paper number 1:
(1) The user X writes in the field 1 with the authenticated electronic pen 100.
(2) The electronic pen 100 analyzes the written information. As a result of the analysis, it is determined that the information is written in the field 1 of the paper number 1.
(3) Since the electronic pen 100 has been authenticated for the paper number 1, it accepts writing by the user. Since field 1 is defined as a writable field, writing by the user is accepted, and the written information holding module 145 stores the written content.
(B) When described in field 3 of paper number 1:
(1) The user X writes in the field 3 with the authenticated electronic pen 100.
(2) The electronic pen 100 analyzes the written information. As a result of the analysis, it is determined that the information is written in the field 3 of the paper number 1.
(3) Since the electronic pen 100 has been authenticated for the paper number 1, it accepts writing by the user. However, since field 3 is not defined as a writable field, writing by the user is determined as an error.
(C) When written on paper different from paper number 1:
(1) User X writes in field 1 of paper number 2 with authenticated electronic pen 100.
(2) The electronic pen 100 analyzes the written information. As a result of the analysis, it is determined that the information is written in the field 1 of the paper number 2.
(3) The electronic pen 100 has been authenticated with respect to the paper number 1, but has not been authenticated with respect to the paper number 2, so writing to the paper number 2 is determined to be an error.

FIG. 10 is a flowchart showing an example of processing according to this embodiment. A description will be given of the flow of re-authentication once authentication has been canceled. Separately, authentication paper (authentication sheet) may be required.
In step S1002, an authentication request is implemented.
In step S1004, the authentication status holding module 140 changes during authentication, and resets the authority information holding module 120.
In step S1006, the user writes the user name, instruction, and instruction number on the authentication sheet.
In step S1008, the reading module 105 reads the written information.
In step S1010, the field information receiving module 110 receives information (including a paper number) from the reading module 105.
In step S1012, the information conversion module 115 converts the information into field information.
In step S <b> 1014, the electronic pen side management module 150 transmits information other than the paper number to the information processing apparatus 160.
Thereafter, the processing is equivalent to the flow of authentication on the information processing apparatus 160 side (after step S822 in the flowchart illustrated in FIG. 8).

Hereinafter, the flow of re-authentication when the authentication is canceled for a certain paper number will be described as an example.
(1) The user X sets the electronic pen 100 to the authentication mode again.
(2) Write the handwriting of the user “X”, the information of the instruction type “S”, and the paper number “1” on the authentication sheet, and transmit the information to the information processing apparatus 160.
(3) The information processing apparatus 160 side performs authentication. The flow of authentication is the same as that for the initial authentication.

Hereinafter, specific examples will be described using the examples of FIGS. For example, a form (work instruction) such as form 1 (form 1100) shown in the example of FIG. 11, a field information table 1200 shown in the example of FIG. 12, an authority information table 1300 shown in the example of FIG. There is a handwriting appraisal information table 1400 shown in FIG.
FIG. 11 is an explanatory diagram showing a processing example according to the present embodiment. The form 1100, which is electronic pen paper, has an information image on one side, a form ID description area 1110, an operator description area 1120, an approver description area 1130, a result description area 1140, a result description area 1150, and a result description area. 1160. In the form ID description area 1110, a combination of a form ID indicating a paper ID and a form number is printed so as to be understood by the user.
FIG. 12 is an explanatory diagram showing an example of the data structure of the field information table 1200. The field information table 1200 includes a form ID column 1210, a field ID column 1220, and an authority column 1230. In the present embodiment, the form ID column 1210 stores information (form ID) for uniquely identifying a form. The field ID column 1220 stores information (field ID) for uniquely identifying a field set in the form 1100 in the present embodiment. The authority column 1230 stores authority. For example, information “0” indicating the worker, information “1” indicating the approver, and the like. Of course, other information such as “2” indicating the approver can also be added.
FIG. 13 is an explanatory diagram showing an example of the data structure of the authority information table 1300. The authority information table 1300 includes a user ID column 1310, a form ID column 1320, and an authority column 1330. The user ID column 1310 stores information (user ID) for uniquely identifying a user in the present embodiment. The form ID column 1320 stores a form ID. The authority column 1330 stores authority.
FIG. 14 is an explanatory diagram showing an example of the data structure of the handwriting appraisal information table 1400. The handwriting appraisal information table 1400 is dictionary data for handwriting appraisal. The handwriting appraisal information table 1400 has a user ID column 1410 and an information column 1420. The user ID column 1410 stores a user ID. The information column 1420 stores the characteristics of the user's stroke information.

FIG. 15 is an explanatory diagram showing a processing example according to the present embodiment. As shown in the example of FIG. 15, when the user A sets the electronic pen 100 in the authentication mode and writes “stroke” in the worker description area 1120, the work starts. By writing the stroke “A” with the electronic pen 100, data such as a form: 1, a form number: 001, and a stroke “A” is transmitted from the electronic pen 100 to the information processing apparatus 160.
The information processing apparatus 160 recognizes the stroke information of “A” as the character “A”, performs the handwriting judgment using the character string information of “A” (character recognition result) and the stroke information, and is the same as the user A Determine if you are a person. For example, the feature of the stroke information is extracted and compared with the information column 1420 of the handwriting appraisal information table 1400 to determine the user. Then, using the authority information table 1300, the authority of the user ID: A in the form ID: 1 is “0” (worker), and using the field information table 1200, the authority of “0” in the form ID: 1 is , It is determined that it can be described in the field ID: 1. Note that field 1 corresponds to the result description area 1140.
After authenticating that the information processing device 160 is a valid person, the following information is transmitted to the electronic pen 100.
“Field ID that can be written: 1, form: 1, form number: 001”
It should be noted that at least information indicating a field that can be described may be included. The electronic pen 100 stores field coordinate information (upper left coordinates, lower right coordinates, etc.) corresponding to the field ID, and the electronic pen 100 can receive and describe “field IDs that can be described”. You may make it extract the coordinate information of a simple field. Further, the information processing device 160 may transmit the coordinate information of the recordable field to the electronic pen 100.

In this state, when the user A places the electronic pen 100 in the result description area 1140 (that is, when the electronic pen 100 can read the information image of the form 1100), the electronic pen 100 recognizes the field information. Since the result description area 1140 is a field that can be described (OK), it can be described as it is. That is, no warning is issued. When the user A places the electronic pen 100 in the result description area 1150 or the result description area 1160, the electronic pen 100 recognizes the field, and as a result, the field is not described (NG). Communicate that it is an error.
If the form number is 002 and the form is entered without being authenticated, a warning is issued as an error. In addition, when it describes in form number 002, it is necessary to receive the authentication using the electronic pen paper of form number 002.
Further, the authentication may be automatically canceled after a certain time has elapsed. When the authentication is cancelled, separately from the form 1100, an electronic pen paper that describes the form number and the user name is prepared separately, and the electronic pen 100 is used to enter the form number and the user name to log in again. You may do it.
In the above example, authentication is performed for each sheet of paper, but authentication may be performed for a plurality of sheets.

  A hardware configuration example of the information processing apparatus according to the present embodiment will be described with reference to FIG. The configuration illustrated in FIG. 16 is configured by, for example, a personal computer (PC) or the like, and illustrates a hardware configuration example including a data reading unit 1617 such as a scanner and a data output unit 1618 such as a printer.

  The CPU (Central Processing Unit) 1601 includes various modules described in the above-described embodiments, that is, the communication module 165, the stroke data analysis module 170, the information processing apparatus side supervision module 175, the authentication module 180, and the instruction field management module. 185, a control unit that executes processing according to a computer program describing an execution sequence of each module such as the authority information management module 190 and the field determination information generation module 195.

  A ROM (Read Only Memory) 1602 stores programs, calculation parameters, and the like used by the CPU 1601. A RAM (Random Access Memory) 1603 stores programs used in the execution of the CPU 1601, parameters that change as appropriate during the execution, and the like. These are connected to each other by a host bus 1604 including a CPU bus or the like.

  The host bus 1604 is connected to an external bus 1606 such as a PCI (Peripheral Component Interconnect / Interface) bus through a bridge 1605.

  A keyboard 1608 and a pointing device 1609 such as a mouse are input devices operated by an operator. The display 1610 includes a liquid crystal display device or a CRT (Cathode Ray Tube), and displays various types of information as text or image information.

  An HDD (Hard Disk Drive) 1611 includes a hard disk, drives the hard disk, and records or reproduces a program executed by the CPU 1601 and information. The hard disk stores locus information, handwriting information, character information, a field information table 1200, an authority information table 1300, a handwriting appraisal information table 1400, and the like. Further, various computer programs such as various other data processing programs are stored.

  The drive 1612 reads data or a program recorded on a removable recording medium 1613 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, and the data or program is read out from the interface 1607 and the external bus 1606. , A bridge 1605, and a RAM 1603 connected via the host bus 1604. The removable recording medium 1613 can also be used as a data recording area similar to the hard disk.

  The connection port 1614 is a port for connecting an external connection device 1615 and has a connection unit such as USB, IEEE1394. The connection port 1614 is connected to the CPU 1601 and the like via the interface 1607, the external bus 1606, the bridge 1605, the host bus 1604, and the like. A communication unit 1616 is connected to a communication line and executes data communication processing with the outside. The data reading unit 1617 is a scanner, for example, and executes document reading processing. The data output unit 1618 is a printer, for example, and executes document data output processing.

  Note that the hardware configuration of the information processing apparatus shown in FIG. 16 shows one configuration example, and the present embodiment is not limited to the configuration shown in FIG. 16, and the modules described in this embodiment are executed. Any configuration is possible. For example, some modules may be configured with dedicated hardware (for example, Application Specific Integrated Circuit (ASIC), etc.), and some modules are in an external system and connected via a communication line In addition, a plurality of systems shown in FIG. 16 may be connected to each other via communication lines so as to cooperate with each other. Further, it may be incorporated in a copying machine, a fax machine, a scanner, a printer, a multifunction machine (an image processing apparatus having any two or more functions such as a scanner, a printer, a copying machine, and a fax machine).

The program described above may be provided by being stored in a recording medium, or the program may be provided by communication means. In that case, for example, the above-described program may be regarded as an invention of a “computer-readable recording medium recording the program”.
The “computer-readable recording medium on which a program is recorded” refers to a computer-readable recording medium on which a program is recorded, which is used for program installation, execution, program distribution, and the like.
The recording medium is, for example, a digital versatile disc (DVD), which is a standard established by the DVD Forum, such as “DVD-R, DVD-RW, DVD-RAM,” and DVD + RW. Standard “DVD + R, DVD + RW, etc.”, compact disc (CD), read-only memory (CD-ROM), CD recordable (CD-R), CD rewritable (CD-RW), Blu-ray disc ( Blu-ray (registered trademark) Disc), magneto-optical disk (MO), flexible disk (FD), magnetic tape, hard disk, read-only memory (ROM), electrically erasable and rewritable read-only memory (EEPROM (registered trademark)) )), Flash memory, Random access memory (RAM) SD (Secure Digital) memory card and the like.
The program or a part of the program may be recorded on the recording medium for storage or distribution. Also, by communication, for example, a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a wired network used for the Internet, an intranet, an extranet, etc., or wireless communication It may be transmitted using a transmission medium such as a network or a combination of these, or may be carried on a carrier wave.
Furthermore, the program may be a part of another program, or may be recorded on a recording medium together with a separate program. Moreover, it may be divided and recorded on a plurality of recording media. Further, it may be recorded in any manner as long as it can be restored, such as compression or encryption.

DESCRIPTION OF SYMBOLS 100 ... Electronic pen 105 ... Reading module 110 ... Field information receiving module 115 ... Information conversion module 120 ... Authority information holding module 125 ... Authority judgment module 130 ... External transmission module 135 ... Authentication request module 140 ... Authentication status holding module 145 ... Described information Holding module 150 ... Electronic pen side management module 155 ... Communication module 160 ... Information processing device 165 ... Communication module 170 ... Stroke data analysis module 175 ... Information processing device side management module 180 ... Authentication module 185 ... Instruction field management module 190 ... Authority Information management module 195 ... Field determination information generation module

Claims (7)

Authentication means for performing authentication based on handwriting information that is a result of recognizing handwriting of trajectory information indicating a trajectory described in the authentication area, or character information that is a result of character recognition of the trajectory information;
If the authentication result by the authentication means is a valid person, an extraction means for extracting an area writable by the person;
An information processing apparatus comprising: a transmission unit configured to transmit the area extracted by the extraction unit to the pen information processing apparatus described above. Receiving means for receiving an area writable by the pen information processing apparatus from the information processing apparatus according to claim 1;
Determination means for determining whether writing by the pen information processing apparatus is writing in the area;
A pen information processing apparatus comprising: a warning unit that issues a warning when it is determined by the determination unit that the writing is not in the area. The pen information processing apparatus according to claim 2, further comprising: a transmission unit configured to transmit the trajectory information of the trajectory by the pen information processing apparatus and an instruction to perform authentication to the information processing apparatus according to claim 1. . The determination means determines whether an authentication period, which is a period during which data can be written to the area, has passed,
The warning means issues a warning indicating that the authentication period has passed if the determination means determines that the authentication period has passed,
The second transmission means for transmitting the trajectory information of the trajectory by the pen information processing apparatus and an instruction to perform re-authentication to the information processing apparatus according to claim 1. The pen information processing apparatus described in 1. Authentication means for performing authentication based on handwriting information that is a result of recognizing handwriting of trajectory information indicating a trajectory described in the authentication area, or character information that is a result of character recognition of the trajectory information;
If the authentication result by the authentication means is a valid person, an extraction means for extracting an area writable by the person;
An information processing apparatus comprising: transmission means for transmitting the region extracted by the extraction means to the pen information processing apparatus that has performed the description;
Accepting means for accepting an area writable by the pen information processing apparatus from the information processing apparatus;
Determination means for determining whether writing by the pen information processing apparatus is writing in the area;
An information processing system comprising: a pen information processing device including a warning unit that issues a warning when the determination unit determines that the writing is not in the area. Computer
Authentication means for performing authentication based on handwriting information that is a result of recognizing handwriting of trajectory information indicating a trajectory described in the authentication area, or character information that is a result of character recognition of the trajectory information;
If the authentication result by the authentication means is a valid person, an extraction means for extracting an area writable by the person;
An information processing program for causing an area extracted by the extraction unit to function as a transmission unit that transmits the area to the pen information processing apparatus that performs the description. Computer
Receiving means for receiving an area writable by the pen information processing apparatus according to claim 2 from the information processing apparatus according to claim 1;
Determination means for determining whether writing by the pen information processing apparatus is writing in the area;
An information processing program for causing a function to function as a warning unit that issues a warning when the determination unit determines that the writing is not performed in the area.

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