JP2009146342A - Writing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform security control with respect to transmission of information from a writing device adapted to write and display an image on a display holding medium (electronic paper). <P>SOLUTION: A port 3 and an adaptor 4 have the function of using a plurality of radio communication methods differed in communication range, in addition to a communication method for wired communication. The adaptor 4 detects a medium ID of an electronic paper 4 connected thereto, switches an available communication method according to communication method information associated with the medium ID, and notifies a user of the communication method. When the user performs operation (and transmitting instruction) according to the available communication method, information is transmitted from the adaptor 4 to the port 3 by the corresponding communication method. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a writing device for writing and displaying an image on a display holding medium, and a program for the writing device.

  In general, a printed matter is one in which a fixed image display is performed by supplying a coloring material such as ink or toner from the outside or a developing material onto a medium represented by paper. Research and development of a display holding medium that can be used as an alternative to the display holding medium so that an image can be rewritten according to the writing external force and that the formed image is held in the display state after the writing external force is removed. Has been.

  Such a display holding medium contains a display material constituting an image inside a display unit as a region for displaying and holding an image, and writing external force (electricity, magnetism, heat, liquid having a predetermined pH, etc.) is applied to the display material. By applying a chemical action, etc., the display material is physically or chemically changed to form an image corresponding to the writing external force, and even after the writing external force is removed, the display material is formed. The image is maintained, and when a different external writing force is applied, the previous image changes to an image corresponding to the new external writing force. In addition to the fact that the display state is maintained (stored) with no external writing force like that of paper, the display image can be rewritten without supplying a coloring material or developer from the outside. Because it is device-like, it is often called electronic paper.

Here, the following invention using electronic paper has been proposed.
The medium writing device converts the acquired information into a writable format and writes it to a recording medium, acquires the medium ID from the recording medium or by user input, and indicates the medium ID and the location of the written information. Is stored in the server as index information in which the two are associated with each other, so that the original information can be acquired later by specifying the index information based on the medium ID so that reprocessing and reuse can be easily performed. An invention has been proposed (see Patent Document 1).

  When the user acquires display content from the content providing apparatus using the portable display recording medium, the user ID, the device ID of the portable display recording medium, the content ID, and the acquisition time information are notified to the management apparatus, and the log DB of the management apparatus Has been proposed that enables search using user IDs, device IDs, and content IDs as keys to manage and analyze user actions related to content use (Patent Document 2). reference).

  When a medium identification code, a display information identification code, and display information are recorded on the display recording medium, the code information reading unit reads the medium identification code and transmits it to the host computer. Has been proposed in which the display information identification code and the display information transmitted from the host computer are written to the display recording medium so that the display contents can be flexibly handled and the display contents can be grasped in real time ( (See Patent Document 3).

  The transfer device 1 that can be connected to a PC or a network wirelessly communicates with a display device 2 having electronic paper and a wireless tag to perform solid identification, transfers display information based on this, and a plurality of transfer devices arranged in space. 1 has been proposed to detect electronic paper and manage information (see Patent Document 4).

JP 2004-139548 A JP 2005-267147 A JP 2002-203213 A JP 2005-316672-A

  For example, there is a system in which content (electronic document) data is transmitted from an operation terminal such as a personal computer (PC) or a mobile phone to a writing device, and a content image based on the content data is written and displayed on a display holding medium by the writing device. It is considered.

Here, log information related to the writing process of the content image to the display holding medium and handwritten information (for example, annotation and check) for the image displayed on the display holding medium are used for grasping, managing, and reusing the usage status of the content. It can utilize for various uses, such as. These pieces of information can be collected by the writing device. However, in order to utilize the information, it is necessary to transmit and output from the writing device to another device (for example, an operation terminal or a management server).
Although it is convenient to use wireless communication for such information transmission, there are cases where information to be kept confidential may be included in the transmission information, and it is impossible to transmit information uniformly using wireless communication. In view of the danger of this, it is not preferable, so it is necessary to take some security measures.

  The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to enable security control with respect to transmission of information from a writing device that writes and displays an image on a display holding medium.

  In the first aspect of the present invention, an external writing force is applied to a display holding medium in which an image is formed so as to be rewritable according to the external writing force and the formed image is held in a display state even after the external writing force is removed. Writing means for writing an image, a transmission means having a function of using a plurality of communication methods, transmitting information to other devices, a receiving means for accepting selection of a communication method from a user, and the transmission means And a control unit configured to control transmission of information by the received communication method.

  According to a second aspect of the present invention, in the writing apparatus according to the first aspect of the present invention, the writing apparatus includes a notification unit that notifies a user of a communication method that can be used for transmitting information by the transmission unit.

  According to a third aspect of the present invention, a writing external force is applied to a display holding medium in which an image is formed so as to be rewritable according to a writing external force and the formed image is held in a display state even after the writing external force is removed. Writing means for writing an image, transmission means for transmitting information to another device having a function of using a plurality of communication methods, a self-writing device, the display holding medium, or a handwriting device for the display holding medium Storage means for associating and storing identification information of one or more of the devices and communication method information indicating whether or not the communication method is usable, and detecting identification information of the device related to the association by the storage means And a switching unit that switches a communication method that can be used for transmitting information by the transmission unit according to communication method information associated with the detected identification information of the device. Device A.

  According to a fourth aspect of the present invention, in the writing apparatus according to the third aspect of the present invention, the writing device further comprises a notification means for notifying a user of a communication method that can be used for transmitting information by the transmission means.

  According to a fifth aspect of the present invention, in the writing device according to the third or fourth aspect of the present invention, the transmission means can use a wired communication system regardless of the content of the communication system information. It is characterized by.

  According to a sixth aspect of the present invention, in the writing apparatus according to the third to fifth aspects of the present invention, when there are a plurality of communication systems that can be used for transmitting information by the transmission means, a selection of a communication system is received from a user. It is characterized by comprising receiving means and control means for controlling transmission of information by the transmitting means by the accepted communication method.

  According to a seventh aspect of the present invention, a computer is written on a display holding medium in which an image is formed so as to be rewritable according to a writing external force and the formed image is held in a display state even after the writing external force is removed. A writing unit that writes an image by applying an external force, a transmission unit that has a function of using a plurality of communication methods, transmits information to another device, a reception unit that receives a selection of a communication method from a user, It is a program for functioning as control means for controlling transmission of information by a transmission means by the accepted communication method.

  According to an eighth aspect of the present invention, a computer is written on a display holding medium in which an image is formed so as to be rewritable according to a writing external force and the formed image is held in a display state even after the writing external force is removed. Writing means for applying an external force to write an image, transmission means having a function of using a plurality of communication methods, and transmitting information to other devices, the self-writing device, the display holding medium, or the display holding medium Storage means for associating and storing the identification information of one or more devices among the devices of the handwriting device with respect to the communication method information indicating whether or not the communication method is usable, and identification of the device related to the association by the storage means In order to function as detection means for detecting information, and switching means for switching communication methods usable for transmission of information by the transmission means in accordance with communication method information associated with the detected identification information of the device Is a program.

  According to the writing device of the first aspect of the present invention, the user can select a communication method used for transmitting information from the writing device, so that security control according to the intention of the user is possible.

  According to the writing device of the second aspect of the present invention, the user can be made aware of a communication method that can be used for transmitting information from the writing device and that has been prepared for communication.

  According to the writing device of the third aspect of the present invention, the writing is performed based on the identification information of one or more devices among the devices of the self-writing device, the display holding medium, or the handwriting device detected by the writing device. Since the communication method that can be used for transmission of information from the writing device is switched, it is possible to perform security control according to the environment of the writing device when information is actually transmitted for transmission of information from the writing device. .

  According to the writing device of the fourth aspect of the present invention, the user can be made aware of a communication method that can be used for transmitting information from the writing device.

  According to the writing device of the fifth aspect of the present invention, it is possible to always use a wired communication system that is free from the risk of wireless interception.

  According to the writing device of the sixth aspect of the present invention, it is possible to allow the user to select a communication method to be actually used among communication methods that can be used for transmitting information from the writing device.

  According to the program according to the seventh aspect of the present invention, the computer can function as the writing device according to the first aspect of the present invention.

  According to the program according to the eighth aspect of the present invention, the computer can function as the writing device according to the third aspect of the present invention.

First, a display holding medium (so-called electronic paper) used in the present invention will be described.
Electronic paper is a medium in which an image is formed so that it can be rewritten in accordance with a writing external force, and the formed image is held in a display state even after the writing external force has been removed. Such as driving an element by directly applying an external force such as heat, driving an element by a voltage change caused by light irradiation, or changing a coloration state by changing a pH of a liquid accompanying voltage application. Some use a display principle for driving an element.
Here, as an example of electronic paper, electronic writing type electronic paper that electronically rewrites an image and optical writing type electronic paper that rewrites an image by light irradiation will be described.

  The electronic writing type electronic paper is a flexible thin medium as large as A4 size paper, for example, and uses fine colored particles (for example, white particles and black particles) used as toner in a copying machine. At least the surface side is sealed between a pair of front and back electrodes, and this is sandwiched between a pair of front and back film substrates whose surface side is transparent at least. An air layer is formed between the electrode layers so that the colored particles can freely move, and an insulating layer for preventing contact with the colored particles is provided on the matrix electrode layer. Note that a color display can be realized with a simple structure by using a color filter.

  In the electronic writing type electronic paper, when no voltage is applied to the electrode, the negatively charged white particles are accumulated on the back surface side, while the positively charged black particles are accumulated on the front surface side. It becomes black when visually observed. Then, when the writing means (driver) of the writing device operates based on the electronic data and inverts the electrode polarity of the required portion of the matrix according to the content image to be displayed, the positional relationship between the white particles and the black particles Are replaced, and a content image based on the contrast between the white particles and the black particles is displayed. By operating the driver of the writing device based on different electronic data, the displayed content image can be switched according to the contrast between the white particles and the black particles, and can be reused many times.

  The optical writing type electronic paper is a flexible thin medium having a size like, for example, A4 size paper. For example, a content image is displayed on a writing means (liquid crystal panel) of a writing device. By applying light from the external power supply to the writing electrode while applying the electronic paper to the liquid crystal panel and irradiating light, the content image displayed on the liquid crystal panel can be transferred and displayed and stored. Even after the voltage applied to the electrode is removed, the content image is kept in the display state.

  The optical writing type electronic paper combines, for example, an organic photoconductive material layer (organic photoconductive layer) and a liquid crystal display material layer (microencapsulated cholesteric liquid crystal layer) used in copying machines, These layers are sandwiched between a pair of front and back transparent electrodes, and this laminate is sandwiched between a pair of front and back transparent substrate films. In this configuration, the white display in which the cholesteric liquid crystal layer reflects light and the black display in which the light passes through the liquid crystal layer and is absorbed by the black layer provided between the cholesteric liquid crystal layer and the organic photoconductive layer. Image display is possible. In addition, cholesteric liquid crystals have the property of interfering and reflecting color light according to the helical pitch, so color display can be realized with a simple structure by stacking cholesteric liquid crystal layers with liquid crystals with different helical pitches. Is also possible.

  Next, the communication system control system according to the present invention will be specifically described based on the following embodiments.

A communication system control system according to a first embodiment of the present invention will be described.
FIG. 1 illustrates the outline of the communication system control system according to the first embodiment.
The communication system control system of the present example is configured integrally or separately with a server (control device) 1 that manages content data and the like, an operation terminal 2 such as a personal computer (PC) 2a and a mobile phone 2b, and an operation terminal 2. A port (port; communication device) 3 for communicating with the writing device 4; an adapter (adapter; writing device) 4 for writing and displaying a content image on the electronic paper 5; and a content image displayed on the electronic paper 5 A dedicated pen (handwriting device) 6 for handwriting input is provided.

  The port 3 and the adapter 4 are a wired communication system that communicates via a connection cable, an NF (near field) wireless communication system that communicates wirelessly in a touched state or at a close distance, and an FF (far field) wireless that wirelessly communicates at a long distance. The communication method corresponds to three communication methods, and the user can select a communication method to be used for transmitting information from the adapter 4 as described later.

  In the following description, a case where a mobile phone is used as the operation terminal 2 and the port 3 and the operation terminal 2 and the port 3 are integrally formed will be described as an example. However, the operation terminal 2 and the port 3 are separated. It may be configured to be connected to each other by a cable or the like, and a stationary device such as a desktop PC or another portable device such as a PDA (Personal Digital Assistants) may be used as the operation terminal 2 instead of the mobile phone. It may be used.

FIG. 2 is a functional block diagram of the adapter 4 according to this example.
The adapter 4 includes a communication unit 41 that communicates with the operation terminal 2 (port 3), a writing unit 45 that writes and displays a content image on the electronic paper 5 based on the received content data, and a communication that is usable and ready for communication. A notification unit 46 for notifying the user of a method, a reception unit 47 for receiving selection of a communication method used for transmitting information from the user, log information related to content image writing processing, and handwritten information by the dedicated pen 6 are stored. The memory 43 is provided. The communication unit 41 has a function of using a plurality of communication methods, and is provided with a control unit 42 that controls transmission of information using the communication method accepted by the accepting unit 47.

  In this example, an electronic rewritable electronic paper is used as the electronic paper 5, and the writing unit 45 of the adapter 4 changes the polarity of the required part of the matrix electrode provided on the electronic paper 5 to change the electronic polarity. The content image is written and displayed on the paper 5. For example, in the case of using optical writing type electronic paper, the writing unit 45 is configured by a functional unit necessary for optical writing such as a light emitting panel, and a content image is projected and written on the electronic paper 5. The writing unit 45 may be configured to perform a writing process in accordance with the paper display principle. In this example, the adapter 4 and the electronic paper 5 are configured to be detachably connected. However, the adapter 4 and the electronic paper 5 may be integrated to form a self-rewritable electronic paper.

The electronic paper 5 of the present example has a fine dot pattern that is different for each coordinate on the surface, and is photographed by a small camera provided at the pen tip of the dedicated pen 6, and the pen tip on the electronic paper 5. Used for location. The locus of the specified pen tip position is wirelessly transmitted as handwritten information from the dedicated pen 6 to the adapter 4 and stored in the memory 43 of the adapter 4.
The handwritten information may be obtained by other methods. For example, a pressure sensitive panel that senses the pressure of the pen tip is provided on the surface of the electronic paper 5, and the locus of the pen tip position sensed by the pressure sensitive panel is handwritten information. You may get as

FIG. 3 shows the appearance of the adapter 4 according to this example.
The adapter 4 of this example includes a selection button B1 for selecting a wired communication system, a selection button B2 for selecting an NF wireless communication system, and a selection button B3 for selecting an FF wireless communication system as the receiving unit 47.

  Note that the reception unit 47 may be realized by other configurations. For example, a button similar to each of the buttons B1 to B3 is provided on the dedicated pen 6, and information on the button selected by the user is wirelessly received to communicate with the communication method. For example, an image provided with a check column for each communication method is written and displayed on the electronic paper 5, and the communication method selected by handwriting input (check) with the dedicated pen 6 is accepted. Also good.

  Each button B1 to B3 is provided with an LED lamp as a notification unit 46 that lights up when the corresponding communication method is usable and ready for communication. That is, for example, when the port 3 and the adapter 4 are cable-connected and within the communication range of each wireless communication method, the LED lamps of the buttons B1 to B3 are lit, for example, the port 3 and the adapter 4 are cable-connected. If not within the communication range of the NF wireless communication system but within the communication range of the FF wireless communication system, only the LED lamp of the button B3 is lit.

  The notification unit 46 may be realized by other configurations. For example, buttons similar to the buttons B1 to B3 are provided on the dedicated pen 6, and information on communication methods that can be used and prepared for communication is stored in the dedicated pen 6. Notification is performed by wirelessly transmitting and turning on the LED lamp of the corresponding button, for example, by displaying on the electronic paper 5 an image indicating a communication method that can be used and prepared for communication, or notification by, for example, a speaker You may make it notify with audio | voice output.

  Here, in the communication system control system of this example, as shown in FIG. 4A, a wired communication system in which the operation terminal 2 (port 3) and the adapter 4 are directly connected or indirectly connected by a cable or the like to perform wired communication. NF wireless communication system that wirelessly communicates in a touch state or close range (for example, within 1 cm) as shown in FIG. 4B, FF that wirelessly communicates in a long distance (for example, within 10 m) as shown in FIG. The configuration corresponds to the three wireless communication methods. For example, as shown in FIG. 5C, a configuration further including a method of performing wireless communication at an intermediate distance (for example, within 30 cm), a wired communication method, and a wireless communication method. Other configurations such as a configuration having one communication method or a configuration having only a plurality of wireless communication methods with different communication ranges (without a wired communication method) may be adopted.

The communication system control processing by the communication system control system of this example will be described with reference to FIG.
When the user operates the operation terminal 2 to select content to be displayed, the operation terminal 2 acquires the corresponding content data from the server 1 and transmits it to the adapter 4 through the port 3.
Upon receiving the content data, the adapter 4 causes the writing unit 45 to write and display a content image based on the content data on the electronic paper 5 connected to the adapter 4, and log information (user information) ID, content ID, medium ID, writing date / time, success / failure of processing, etc.) are stored in the memory 44. (Steps S11 and S12).

  The user can draw the content image displayed on the electronic paper 5 with the dedicated pen 6, and in response to the drawing input, handwritten information indicating the drawing contents is wirelessly transmitted from the dedicated pen 6 to the adapter 4. And stored in the memory 44 of the adapter 4 (step S13).

When the user transmits information (log information or handwritten information) stored in the memory 44 of the adapter 4 to another device such as the port 3, the notification unit 46 (LED lamp of each operation button) of the adapter 4 The communication method to be used for information transmission is selected (pressed the corresponding operation button) among the communication methods that are available and ready for communication (step S14).
When the adapter 4 accepts the selection of the communication method used for information transmission by the accepting unit 47, the adapter 4 transmits the information stored in the memory 44 to the port 3 by the communication method under the control of the control unit 42 (step). S15).

A second embodiment of the communication system control system according to the present invention will be described. Since the outline of the system is the same as that of the communication system control system of the first embodiment, description thereof is omitted.
FIG. 6 is a functional block diagram of the adapter 4 according to the second embodiment. The adapter 4 of this example includes a detection unit 49 that detects a medium ID for identifying the connected electronic paper 5 in addition to the functions of the adapter 4 (FIG. 2) according to the first embodiment, and uses a communication method. A communication method management unit 48 that stores and manages communication method information relating to availability is provided, and the communication unit 41 is provided with a switching unit 43 that switches usable communication methods in accordance with the communication method information.

  The detecting unit 49 accesses a memory (not shown) provided in the connected electronic paper 5, and detects the medium ID by reading the medium ID stored in the memory. For example, a barcode image indicating the medium ID of the electronic paper 5 is attached to the surface of the electronic paper 5, and the detection unit 49 reads the barcode image to detect the medium ID, or the medium ID from the user. It may be realized by other methods such as receiving and detecting the input.

As shown in FIG. 7A, the communication method management unit 48 stores a medium ID and communication method information in association with each other.
As communication method information, one or a plurality of communication methods that can be used to transmit information (log information and handwritten information) stored in the memory 44 to the port 3 is set. In this example, the usable communication method is set in the communication method information. However, an unusable communication method may be set. In short, communication that can be used for information transmission to the port 3 is possible. It is only necessary that the method can be controlled based on the communication method information.

The communication unit 41 of the adapter 4 switches the communication method that can be used for information transmission according to the communication method information associated with the medium ID detected by the detection unit 49.
Here, in this example, regardless of the setting contents of the communication method information, there is no danger of wireless interception (that is, high security), the wired communication method can always be used, and the minimum communication method is secured. Yes. The wired communication method may be switched according to the communication method information. In this case, it is desirable to always allow information exchange using the local memory method via a portable external storage medium.

  When the user transmits information (log information or handwritten information) stored in the memory 44 of the adapter 4 to another device such as the port 3, the communication method (a plurality of communication methods notified by the notification unit 46 of the adapter 4). If the communication method is notified, the adapter 4 is connected to the port 3 and the wireless communication method is used when the wired communication method is used (one communication method selected by the user). In this case, the adapter 4 is arranged at a position corresponding to the communication range), and information is transmitted from the adapter 4 to the port 3 by the communication method.

  In addition, information may be sent immediately when the manner according to the communication method is performed, or the state in which the manner has been made (that is, the communication information has been prepared and waiting for the start of communication is ready) The information may be transmitted on condition that the reception unit 47 receives a transmission instruction from the user. When transmitting information on the condition of a transmission instruction, for example, when waiting for a communication preparation in which the cable communication method is determined to be usable by the communication method information but the cable is not connected and the transmission information is not prepared. The LED lamp is lit yellow, and when the cable is connected and ready for communication, the LED lamp is lit in green so that the communication method waiting for communication and the communication method ready for communication can be distinguished. It is desirable to do.

  In the above description, the usable communication method is switched according to the electronic paper 5, but the communication method may be switched according to the dedicated pen 6 or the adapter 4.

In order to perform communication control according to the dedicated pen 6, as shown in FIG. 7B, the pen ID for identifying the dedicated pen 6 and the communication method information are associated with each other and set in the communication method management unit 48. Then, the pen ID may be detected by the detection unit 49, and communication control may be performed based on the communication method information associated with the pen ID.
As a method for detecting the pen ID, for example, various methods such as reading and detecting a pen ID stored in the pen dedicated pen 6 in advance or receiving a pen ID input from a user may be adopted. it can.

In order to perform communication control according to the adapter 4, as shown in FIG. 7C, the adapter ID for identifying the adapter 4 and the communication method information are associated with each other and set in the communication method management unit 48, and the detection is performed. The adapter 49 may be detected by the unit 49, and communication control may be performed based on the communication method information associated with the adapter ID.
As a method for detecting the adapter ID, for example, various methods such as reading and detecting an adapter ID stored in advance in the adapter 4 or receiving and detecting an adapter ID input from a user can be employed.

Two or more types of communication method information such as communication method information by electronic paper, communication method information by dedicated pen, and communication method information by adapter are set in the communication method management unit 48, and the information is actually transmitted. It is also possible to comprehensively determine the environment at the time of switching and to switch the usable communication method.
That is, for example, the communication method information for each electronic paper and the communication method information for each dedicated pen are set in the communication method management unit 48, and a communication method that can be used for the electronic paper 5 corresponding to the detected medium ID; Among the communication methods that can be used for the dedicated pen 6 corresponding to the detected pen ID, only the common communication method can be used.

FIG. 8 shows a main hardware configuration of the adapter 4 according to each of the above embodiments.
That is, the adapter 4 of this example includes a CPU that performs various arithmetic processes, a RAM that is a work area of the CPU, a ROM that stores basic control programs, and an HDD that stores programs for realizing the functions according to the present invention. An input / output I / F that is an interface with devices such as a liquid crystal display that displays and outputs information to the user, a mouse / keyboard that accepts input of information from the user, and an interface that communicates with other devices It is composed of a computer having hardware resources such as a certain communication I / F.
Then, the program according to the present invention is read from the HDD, loaded into the RAM, and executed by the CPU, whereby each functional unit of the writing device according to the present invention is realized in the computer of the adapter 4.

  The program according to the present invention is provided to the practitioner of the present invention, for example, in a format for distributing an external storage medium such as a CD-ROM storing the program or a format for distributing via a network. Further, each functional unit of the writing device according to the present invention is not limited to a mode realized by the software configuration as in the present example, and may be configured by a dedicated hardware module. In addition, each functional unit of the writing device according to the present invention is not limited to an aspect provided in one computer as in this example, and may be provided in a distributed manner in a plurality of computers.

It is a figure which shows the outline | summary of the communication system control system which concerns on 1st Example of this invention. It is a functional block diagram of the adapter which concerns on 1st Example of this invention. It is a figure which shows the external appearance of the adapter which concerns on 1st Example of this invention. It is a figure explaining the communication system which concerns on 1st Example of this invention. It is a figure explaining the control processing of the communication system which concerns on 1st Example of this invention. It is a functional block diagram of the adapter which concerns on 2nd Example of this invention. It is a figure which shows the example of data of the communication system management part which concerns on 2nd Example of this invention. It is a hardware block diagram of the adapter which concerns on each Example of this invention.

Explanation of symbols

  1: server, 2, 2a, 2b: operation terminal, 3: port, 4: adapter, 5: electronic paper, 6: dedicated pen, 41: communication unit, 42: control unit, 43: switching unit, 44: memory, 45: writing unit, 46: notification unit, 47: reception unit, 48: communication method management unit, 49: detection unit

Claims (8)

Writing means for writing an image by applying a writing external force to a display holding medium in which the image is formed in a rewritable manner according to the writing external force and the formed image is held in a display state even after the writing external force is removed When,
A transmission means having a function of using a plurality of communication methods and transmitting information to another device;
An accepting means for accepting a communication method selection from a user;
Control means for controlling transmission of information by the transmission means by the accepted communication method;
A writing apparatus comprising:   The writing apparatus according to claim 1, further comprising a notification unit that notifies a user of a communication method that can be used for transmission of information by the transmission unit. Writing means for writing an image by applying a writing external force to a display holding medium in which the image is formed in a rewritable manner according to the writing external force and the formed image is held in a display state even after the writing external force is removed When,
A transmission means having a function of using a plurality of communication methods and transmitting information to another device;
A storage for associating and storing identification information of one or more devices of the self-writing device or the display holding medium or each device of the handwriting device with respect to the display holding medium and communication method information indicating whether or not the communication method can be used Means,
Detecting means for detecting identification information of the device related to the association by the storage means;
Switching means for switching communication methods usable for transmission of information by the transmission means according to communication method information associated with the detected identification information of the device;
A writing apparatus comprising:   The writing apparatus according to claim 3, further comprising a notification unit that notifies a user of a communication method that can be used for transmission of information by the transmission unit.   5. The writing apparatus according to claim 3, wherein the transmission unit can use a wired communication system regardless of the content of the communication system information. A receiving unit that receives a selection of a communication method from a user when there are a plurality of communication methods that can be used for transmitting information by the transmission unit;
Control means for controlling transmission of information by the transmission means by the accepted communication method;
The writing apparatus according to claim 3, further comprising: Computer
Writing means for writing an image by applying a writing external force to a display holding medium in which the image is formed in a rewritable manner according to the writing external force and the formed image is held in a display state even after the writing external force is removed When,
A transmission means having a function of using a plurality of communication methods and transmitting information to another device;
An accepting means for accepting a communication method selection from a user;
The program for functioning as a control means which controls to transmit the information by the transmission means by the accepted communication method. Computer
Writing means for writing an image by applying a writing external force to a display holding medium in which the image is formed in a rewritable manner according to the writing external force and the formed image is held in a display state even after the writing external force is removed When,
A transmission means having a function of using a plurality of communication methods and transmitting information to another device;
A storage for associating and storing identification information of one or more devices of the self-writing device or the display holding medium or each device of the handwriting device with respect to the display holding medium and communication method information indicating whether or not the communication method can be used Means,
Detecting means for detecting identification information of the device related to the association by the storage means;
A program for functioning as a switching unit that switches a communication method that can be used for transmission of information by the transmission unit in accordance with communication method information associated with the detected identification information of the device.

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