JP5205985B2 - Display history management system - Google Patents

Description

  The present invention relates to a display history management system that collects history information related to display control of a display holding medium in a display control device, a display control device and a management device that constitute the system, and a program for these devices.

2. Description of the Related Art In recent years, various inventions have been proposed for the purpose of information security and prevention of leakage of confidential information, for example, as shown in Patent Documents 1 to 4 below.
Patent Document 1 discloses an output document management system when a copying machine, a printer, or a facsimile is used. Patent Document 2 discloses a method for acquiring a print history at a time when data is actually printed and discharged, not a print history at the time when data is transmitted to the printer. Patent Document 3 discloses a printing method in which data transmission from an information device to a printer apparatus uses wireless infrared communication instead of wired communication. Patent Document 4 discloses an information distribution system composed of a non-contact IC card and a biometric authentication device as a security management method for electronic paper display.

JP 2005-190365 A JP 2004-90235 A JP 2005-329596 A JP 2007-172207 A

  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. As a medium that can be substituted for the display and holding medium, an image that can be rewritten according to the writing external force is formed by the writing external force, and the formed image is held in the display state even after the writing external force is removed. The medium is being researched and developed.

  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.

In recent years, it has been considered to construct an electronic paper system as shown in FIG. 12 using the electronic paper as described above.
The electronic paper system shown in the figure includes an electronic paper 9 as a content image display medium, an information communication device 7 that accepts a user operation such as selection of a content image to be displayed on the electronic paper 9, and the selected content image as an electronic paper 9. And a writing device 8 for writing and displaying.

An outline of processing by this electronic paper system will be described.
The information communication device 7 stores content images in the image storage unit 72, and the list information is displayed on the display of the information communication device 7 by the image display operation receiving unit 73. When the selection of a content image to be displayed on the electronic paper 9 is received from the user by the image display operation accepting unit 73, the content image data is transmitted to the writing device 8 by the image transmitting unit 74 and a transmission history (that is, (Display history of content image by electronic paper 9) is stored in display state storage means 71. In the writing device 8, when the content image data is received by the image receiving means 81, the content image is written and displayed on the electronic paper 9 by the image writing means 82.

  Here, when the information communication device 7 and the writing device 8 are connected by a wired network capable of continuous communication, the information communication device 7 performs a content image writing process to the electronic paper 9 by the writing device 8. In each case, information on the result (success or failure) of the writing process can be received and reflected in the stored contents (display history of the content image by the electronic paper 9) of the display state storage means 71.

However, when the information communication device 7 and the writing device 8 are connected by a wireless network (for example, WiFi (registered trademark)) whose connection state is not stable, or short-range wireless communication (for example, establishing a connection every time it is used) In the case of connection using IrDA, Bluetooth (registered trademark), the information communication device 7 may not be able to receive the result of the writing process. This is because the writing process to the electronic paper 4 requires a certain amount of time, so even if wireless communication is possible when the content image information is transmitted, the wireless communication is not performed at the end of the writing process. This is because it is not always possible.
For this reason, there is a gap between the display state of the content image on the electronic paper 8 that can be confirmed on the information communication device 7 and the actual display state of the content image on the electronic paper 8. That is, the display state of the content image on the electronic paper 8 cannot be accurately managed by the information communication device 7.

  The present invention has been made in view of the above-described conventional circumstances. In an environment where an information communication device and a writing device communicate wirelessly, history information related to display control on a display holding medium (electronic paper) is displayed on the information communication device. Is intended to propose a technique that can be reliably received from the writing device.

  A first aspect of the present invention includes a display control device and a management device that communicate with each other wirelessly, and the display control device has a rewritable image formed in accordance with a writing external force and the writing external force is removed. The display control means for controlling the display contents of the display holding medium by applying a writing external force to the display holding medium that holds the formed image in the display state, and the history regarding the display control of the display holding medium by the display control means First storage means for storing information, and history information transmission means for transmitting history information stored in the first storage means to the management apparatus, wherein the management apparatus is transmitted from the display control apparatus. A display history management system comprising: history information receiving means for receiving the history information; and second storage means for storing the history information received by the history information receiving means.

According to a second aspect of the present invention, in the first aspect of the present invention, the management device includes an image information transmission instruction unit that receives an image information transmission instruction used for display control of the display holding medium in the display control device from a user; And a history request transmission means for transmitting a history request to the display control device in response to receiving an image information transmission instruction by the image information transmission instruction means, wherein the display control device transmits from the management device. A history request receiving means for receiving the received history request, wherein the history information transmitting means receives the history information stored in the first storage means in response to receiving the history request by the history request receiving means. The management device transmits the history information corresponding to the history request by the history information receiving means, and the image information instructed to be transmitted is transmitted to the management device. The characterized by comprising an image information transmitting means for transmitting to the display control device.
That is, the display history management system according to the second aspect of the present invention includes a display control device and a management device that communicate with each other wirelessly, and the display control device has an image that can be rewritten according to a writing external force and A display control means for controlling the display contents of the display holding medium by applying a writing external force to the display holding medium that holds the formed image in a display state even after the writing external force is removed, and the display control means First storage means for storing history information relating to display control of the display holding medium, wherein the management device sends an instruction to transmit image information used for display control of the display holding medium in the display control device from a user. Image information transmission instruction means to be received, and history to transmit a history request to the display control device in response to receiving an image information transmission instruction by the image information transmission instruction means The display control device includes a history request receiving unit that receives a history request transmitted from the management device, and the history control receiving unit receives the history request in response to receiving the history request. History information transmitting means for transmitting history information stored in one storage means to the management device, the management device receiving history information transmitted from the display control device, Second storage means for storing history information received by the history information receiving means, and display control of the image information instructed to be transmitted in response to the history information for the history request being received by the history information receiving means. An image information transmitting means for transmitting to an apparatus.

  According to a third aspect of the present invention, in the first aspect of the present invention, the management device accepts a history request transmission instruction means for accepting a history request transmission instruction from a user, and a history request transmission instruction by the history request transmission instruction means. And a history request transmitting means for transmitting a history request to the display control device, the display control device comprising a history request receiving means for receiving a history request transmitted from the management device, The history information transmitting means transmits history information stored in the first storage means to the management apparatus in response to receiving a history request by the history request receiving means.

  According to a fourth aspect of the present invention, in the first aspect, the management device includes a detection unit that detects that a wireless communication state with the display control device has changed from a non-connection state to a connection state, and the detection unit. A history request transmission unit configured to transmit a history request to the display control device in response to detection of a change in a wireless communication state with the display control device, wherein the display control device is transmitted from the management device. A history request receiving means for receiving the history request, wherein the history information transmitting means receives the history information stored in the first storage means in response to receiving the history request by the history request receiving means. It transmits to a management apparatus, It is characterized by the above-mentioned.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the display control means includes information related to a result of display control for the display holding medium in the history information.

  According to a sixth aspect of the present invention, in the first to fifth aspects of the present invention, the display control device includes execution instruction means for receiving an instruction to execute predetermined display control for the display holding medium from a user. Performs display control according to the execution instruction received by the execution instruction means, and includes information on the contents of the display control in the history information.

  According to a seventh aspect of the present invention, in the first to sixth aspects of the present invention, the management device performs wireless communication with the display control device and receives history information from the display control device; A storage device that stores history information received by the wireless communication device is provided separately.

According to an eighth aspect of the present invention, there is provided a wireless communication unit that wirelessly communicates with the management apparatus, and an image formed after a rewritable image is formed according to the writing external force and the writing external force is removed. Display control means for controlling the display content of the display holding medium by applying a writing external force to the display holding medium held in the display state; and storage means for storing history information relating to display control of the display holding medium by the display control means; And a history information transmitting means for transmitting history information stored in the storage means to the management apparatus by the wireless communication means.
More specifically, for example, a technical feature corresponding to the second aspect of the present invention is provided.
That is, the display control apparatus according to an example of the ninth aspect of the present invention is a display control apparatus that performs communication with the management apparatus wirelessly, in which an rewritable image is formed according to the writing external force, and the writing external force Display control means for controlling the display content of the display holding medium by applying a writing external force to the display holding medium that holds the formed image in the display state even after the image is removed, and the display holding medium by the display control means And a history request from the management device in response to receiving from the user an instruction to transmit image information used by the management device for display control of the display holding medium. A history request receiving means for receiving the transmitted history request when transmitted, and a history stored in the storage means in response to receiving the history request by the history request receiving means History information transmission means for transmitting information to the management apparatus, the history information transmitted by the history information transmission means is received and stored by the management apparatus, and the display control means receives the history information. The display control apparatus controls the display content of the display holding medium on the basis of the transmission-instructed image information transmitted from the management apparatus.

According to a ninth aspect of the present invention, a writing external force is applied to a display holding medium that holds a formed image in a display state after a rewritable image is formed according to the writing external force and the writing external force is removed. Wireless communication means for wirelessly communicating with a display control device for controlling the display content of the display holding medium, and history information regarding display control of the display holding medium stored in the display control device by the wireless communication means. A management apparatus comprising: history information receiving means received from the display control apparatus; and storage means for storing history information received by the history information receiving means.
More specifically, for example, a technical feature corresponding to the second aspect of the present invention is provided.
That is, the management device according to an example of the ninth aspect of the present invention provides a display in which a rewritable image is formed 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 management device that wirelessly communicates with a display control device that applies a writing external force to a holding medium to control display content of the display holding medium, and is used for display control of the display holding medium in the display control device Image information transmission instruction means for receiving an image information transmission instruction from a user, and history request transmission for transmitting a history request to the display control device in response to reception of an image information transmission instruction by the image information transmission instruction means And history information related to display control of the display holding medium stored in the display control device in response to the history request received by the display control device. History information receiving means for receiving the transmitted history information, storage means for storing the history information received by the history information receiving means, and history information for the history request received by the history information. Image information transmission means for transmitting the image information instructed to be transmitted to the display control device in response to reception by the means, and based on the image information transmitted by the image information transmission means, the display The management apparatus is characterized in that display control of the display holding medium is performed by a control apparatus.

According to a tenth aspect of the present invention, a rewritable image is formed according to a writing external force on a computer having wireless communication means for performing wireless communication with the management apparatus, and the image is formed even after the writing external force is removed. Display control function for performing a process of controlling the display content of the display holding medium by applying a writing external force to the display holding medium for holding the displayed image in the display state, and display control of the display holding medium by the display control processing function a storage processing function that performs storage processing of the history information on, realizing, a history information transmission processing function which performs a process of transmitting to the management apparatus by the history information stored in the memory the wireless communication unit to by the storage function It is a program for.
More specifically, for example, a technical feature corresponding to the second aspect of the present invention is provided.
In other words, the program according to an example of the tenth aspect of the present invention forms a rewritable image according to the writing external force on the computer of the display control device that wirelessly communicates with the management device, and removes the writing external force. A display control processing function for performing a process of controlling the display content of the display holding medium by applying a writing external force to the display holding medium that holds the formed image in the display state after the display, and the display control processing function A storage processing function for storing history information related to display control of the display holding medium, and the management device accepting a transmission instruction of image information used for display control of the display holding medium from a user, When a history request is transmitted from the management apparatus, a history request is received by the history request reception processing function for performing processing for receiving the transmitted history request, and the history request reception processing function. A history information transmission processing function for performing processing for transmitting the history information stored by the storage processing function to the management device in response to receiving the information, the history information transmission processing function The history information transmitted by the management device is received and stored by the management device, and the display control processing function performs the display based on the transmission-instructed image information transmitted from the management device that has received the history information. A program for controlling display contents of a holding medium.

The eleventh aspect of the present invention provides a writing external force to a display holding medium that holds a formed image in a display state after a rewritable image is formed according to the writing external force and the writing external force is removed. The history information regarding the display control of the display holding medium stored in the display control device is stored in a computer having wireless communication means for wirelessly communicating with the display control device for controlling the display content of the display holding medium. A program for realizing a history information reception processing function for performing processing received from the display control device by wireless communication means and a storage processing function for storing history information received by the history information reception processing function .
More specifically, for example, a technical feature corresponding to the second aspect of the present invention is provided.
That is, a program according to an example of the eleventh aspect of the present invention is a display holding device that forms a rewritable image according to a writing external force and holds the formed image in a display state even after the writing external force is removed. An image used for display control of the display holding medium in the display control apparatus in a computer of a management apparatus that wirelessly communicates with a display control apparatus that applies a writing external force to the medium to control display contents of the display holding medium An image information transmission instruction processing function for receiving an information transmission instruction from a user, and a history request is transmitted to the display control device in response to reception of an image information transmission instruction by the image information transmission instruction processing function. A history request transmission processing function for performing processing to be performed, and the display holding stored in the display control device in response to the display control device receiving a history request. When history information related to body display control is transmitted from the display control device, a history information reception processing function for performing processing for receiving the transmitted history information, and storage of history information received by the history information reception processing function A storage processing function for performing processing, and image information transmission for performing processing for transmitting the image information instructed to be transmitted to the display control device in response to reception of history information for the history request by the history information reception processing function The display control device performs display control of the display holding medium based on the image information transmitted by the image information transmission processing function. It is a program.

  According to the display history management system of the first aspect of the present invention, history information relating to display control for the display holding medium is stored in the writing device, so that the history information is immediately used when the writing device performs display control of the display holding medium. Since the history information can be transmitted afterwards even when the management device cannot be transmitted, the management device stores the history information in the environment where the management device (information communication device) and the writing device communicate wirelessly. Can be reliably received. As a result, the management apparatus can accurately manage the actual display state on the display holding medium.

  According to the display history management system according to the second aspect of the present invention, history information related to previously transmitted image information can be automatically transmitted from the writing device at a timing when the management device transmits image information to the writing device. it can.

  According to the display history management system according to the third aspect of the present invention, history information can be transmitted from the writing device at a timing intended by the user.

  According to the display history management system of the fourth aspect of the present invention, history information can be automatically transmitted from the writing device at the timing when a wireless communication connection is established.

  According to the display history management system according to the fifth aspect of the present invention, the management device displays the result of the display control of the display holding medium by the writing device (for example, the success or failure of the writing process or the cancellation, the date of the writing process, The identification information of the display holding medium to be written can be managed.

  According to the display history management system according to the sixth aspect of the present invention, the management device includes display control content (for example, display content of electronic paper) in which the writing device operates independently (regardless of the management device) according to a user instruction. Erasing and writing of a test pattern image to electronic paper) can be managed.

  According to the display history management system of the seventh aspect of the present invention, the management device can be configured using the wireless communication device and the storage device.

  According to the display control apparatus according to the eighth aspect of the present invention and the management apparatus according to the ninth aspect of the present invention, the display history management system described above can be constructed.

  According to the program of the tenth aspect of the present invention, the computer can function as the above writing device.

  According to the program of the eleventh aspect of the present invention, a computer can function as the above management apparatus.

First, a display holding medium (electronic paper) used in the display history management system according to the present invention will be described.
Electronic paper is a medium in which an image that can be rewritten according to external writing force is formed by external writing force, and the formed image is held in a display state even after the external writing force is removed. Drive the element by directly applying external force such as electricity, magnetism, heat, etc., drive the element by voltage change accompanying light irradiation, change the coloration state by changing the pH of the liquid accompanying voltage application, etc. There are those using a display principle for driving elements in a chain.
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 reverses the electrode polarity of the required part 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.

  Optical writing-type electronic paper, for example, displays and projects a content image to be transferred to a liquid crystal panel of a writing device, and when a voltage is applied to the writing electrode, the intensity of light is instantaneously converted into a reflection density. Then, the projected content image is held. The content image displayed and held can be erased by applying an erase voltage to the write electrode.

Next, a writing device for writing content images on the electronic paper as described above will be briefly described.
For example, a writing device of a type applied to electronic writing type electronic paper has a driver (writing means) connected to the electronic paper and, as described above, electronic data (resolution of electronic paper, etc.) The content image based on the display image data conforming to (2) is written on the electronic paper.

  In addition, for example, a writing device of a type applied to optical writing type electronic paper is provided on a display surface (writing means) such as a liquid crystal panel for displaying a content image and projecting it on the electronic paper, and the electronic paper. And having the function of applying a voltage to the writing electrode, and writing the content image on the electronic paper placed on the display surface as described above.

Here, the electronic paper and the writing device may be configured as an integrated device, or the electronic paper may be configured as a separate device that is detachable from the writing device.
In the display history management system described below, an optical writing type electronic paper and a writing device to which the electronic paper is detachable are used. However, other types of electronic paper and writing devices are used. May be.

  Next, the display history management system according to the present invention will be specifically described based on the following embodiments.

FIG. 1 illustrates an overview of a display history management system according to the first embodiment of the present invention.
The display history management system of this example includes the content server 1 and the mobile terminal device 2 that can communicate with each other via a network, and also includes the writing device 3 and the electronic paper 4 described above. And the writing device 3 communicate with each other wirelessly. In this example, a mobile phone is used as the mobile terminal device 2, but a portable terminal having a wireless communication function such as a PDA (Personal Digital Assistant) or a mobile personal computer may be used. In this example, the management apparatus according to the present invention (in the following description, information communication) using the content server 1 as the storage device according to the present invention and the mobile terminal device 2 as the wireless communication apparatus according to the present invention. However, these may be configured as an integrated device.
Here, the content in this example is composed of elements such as characters, figures, and photographs, and a content image obtained by imaging these is written and displayed on the electronic paper 4.

FIG. 2 is a functional block diagram of the information communication device 5 and the writing device 3 according to this example.
First, each functional unit of the information communication device 5 will be described.
The information communication device 5 of this example includes a display state storage unit 51, an image storage unit 52, an image display operation reception unit 53, an operation history reception unit 54, and an image transmission unit 55.

  The image storage means 52 stores content images classified by identifier (content ID), and stores them in association with the reduced images, file names, titles, and the like. Then, a content list (reduced image, file name, title) of each content image is returned in response to a request from the image display operation accepting unit 53, and content image data is returned in response to a request from the image transmitting unit 55.

  The display state storage unit 51 stores the identifier of the content image currently displayed on the electronic paper 4 (identifier of the transmitted content image), the identifier of the content image displayed on the electronic paper 4 in the past, and the writing related to the display. Display state history data including association information such as identifiers of the device 3 and the electronic paper 4 is stored. Then, in response to a request from the image display operation accepting unit 53, a media list (latest display state history data regarding each electronic paper 4) is returned.

The contents stored in the display state storage means 51 will be specifically described with reference to FIGS.
FIG. 3 shows a media table that stores media data that is information about each electronic paper 4.
As shown in the figure, the media data includes a media ID for uniquely identifying each electronic paper 4, a class ID for classifying the size and display capability (color display and monochrome display only) of the electronic paper 4, and the electronic paper 4. Information such as the number of times the content image has been written (the number of times of printing) and the number of times the content image of the electronic paper 4 has been cleared (the number of times of clearing).

FIG. 4 shows an appliance table that stores appliance data related to each writing device 3.
The appliance data includes a media ID for uniquely identifying each writing device 3, a class ID for classifying the size and display capability of the electronic paper 4 corresponding to the writing device 3, and the number of times content images have been written to the electronic paper 4 ( Information such as the number of times of printing) and the number of times that the content image of the electronic paper 4 has been cleared (the number of times of clearing) are combined.

FIG. 5 shows a history table that stores display state history data indicating the results and contents of display control for the electronic paper 4 by each writing device 3.
The display state history data indicates the result and contents of display control performed on the electronic paper 4 by the writing device 3, and is a serial number that uniquely identifies each display state history data, and the media ID of the electronic paper 4. The appliance ID of the writing device 3 that has performed display control on the electronic paper 4, the content ID of the content image used by the writing device 3 for display control, an event representing the result and details of display control, and display control are performed. Information such as date and time.

In this example, as information indicating an event, “SUCCESS” indicating that the content image writing process has succeeded, “FAIL” indicating that the content image writing process has failed, and writing of the content image “STOP” indicating that the process has been canceled by the user's instruction and “CLEAR” indicating that the content image erasing process has been performed are used, but the present invention is not limited to these. For example, the cause of the failure Or information indicating that a test pattern image has been written on the electronic paper 4 can be used.
The display state history data is generated when the content image data to be displayed on the electronic paper 4 is transmitted to the writing device 3 and stored in the history table. At that time, the event and date are blank. And is set by an update process to be described later.

  The image display operation accepting unit 53 acquires a content list from the image storage unit 52 and displays a list of reduced images, file names, and titles of each content image on the display screen of the information communication device 5. Further, the media list is acquired from the display state storage means 51, and the latest display state of each electronic paper 4 is displayed as a list. When the selection of a content image to be displayed on the electronic paper 4 is received from the user by operating a button or the like provided on the information communication device 5, the operation history receiving unit 54 is activated.

The operation history receiving means 54 transmits a history request to the writing device 3 and waits until operation history data is transmitted from the writing device 3. When the operation history data is received from the writing device 3, the history table of the display state storage unit 51 is updated based on the received operation history data. Here, the operation history data transmitted from the writing device 3 is generated by the writing device 3 after the previous transmission of the content image data, and as shown in FIG. It is configured as a set. If the event of the received operation history data is a result of display control such as “SUCCESS” (success), “FAIL” (failure), “STOP” (stop), the corresponding display state history data in the history table. Event and date / time are updated to the content of the operation history data, and the event of the operation history data is the content of display control (only for the writing device 3) such as “CLEAR” (erase), the operation history data Based on this, display state history data is generated and stored in the history table. Then, the operation history receiving unit 54 activates the image transmission unit 55 after the above update process.
In this example, the operation history receiving unit 54 is activated on the condition that the user is permitted to communicate with the information communication device 5 and the writing device 3 (reconfirmation). May be activated immediately.

  The image transmission means 55 requests the data of the corresponding content image from the image storage means 52 by the content ID indicating the content image selected by the user by the image display operation accepting means 53, and sends the acquired data to the writing device 3. Send to. Further, display state history data based on the transmission contents is generated and stored in the history table of the display state storage unit 51.

Next, each functional unit of the writing device 3 will be described.
As shown in FIG. 2, the writing device 3 of this example includes an operation history transmission unit 31, an image reception unit 32, an operation history storage unit 33, an image writing unit 34, and a display operation reception unit 35. .

  The operation history storage means 33 stores operation history data as shown in FIG. 6 in a history table. The operation history data indicates the results and contents of display control performed on the electronic paper 4 by the image writing unit 34.

  When receiving a history request from the information communication device 5, the operation history transmission unit 31 acquires operation history data from the operation history storage unit 33 and transmits it to the information communication device 5. In this example, the transmitted operation history data is deleted from the operation history storage means 33 so that the same operation history data is not transmitted a plurality of times. For example, the transmission status of each operation history data (sent (Or not transmitted) may be managed by a flag or the like, and only untransmitted operation history data may be transmitted.

  When receiving the content image data from the information communication device 5, the image receiving unit 32 converts the data into a data format used for the writing process for the electronic paper 4 and transmits the data to the image writing unit 34.

The image writing unit 34 receives the write data from the image receiving unit 32 and writes a content image based on the write data to the electronic paper 4. Further, the writing of the content image is stopped by the stop instruction received from the user by the display operation receiving means 35, or the display of the electronic paper 4 is deleted by the delete instruction (or the entire surface of the electronic paper 4 is displayed in white or black. Or a predetermined test pattern image is written on the electronic paper 4 in response to a test pattern display instruction.
Then, operation history data corresponding to the result and content of the display control for controlling the display content of the electronic paper 4 as described above is generated and stored in the operation history storage means 33.

  The display operation accepting unit 35 accepts a stop instruction, an erase instruction, a test pattern display instruction, and the like from a user using a button or the like provided on the writing device 3, and transmits the instruction content to the image writing unit 34.

Next, the flow of processing by the display history management system according to the present embodiment will be described with reference to FIG.
The image display operation accepting unit 53 of the information communication device 5 acquires a content list from the image storage unit 52 and displays a list of reduced images, file names, and titles of each content image (step S11), and display state storage unit. The media list is acquired from 51 and the latest display state of each electronic paper 4 is displayed as a list (step S12). When the selection of the content image to be displayed on the electronic paper 4 is received from the user, the operation history receiving unit 54 is activated (step S13).
The operation history receiving means 54 of the information communication device 5 transmits a history request to the writing device 3 and waits until operation history data is transmitted from the writing device 3 (step S14).

  When receiving the history request from the information communication device 5, the operation history transmission unit 31 of the writing device 3 acquires the operation history data from the operation history storage unit 33 (step S15), and uses the acquired operation history data as the information communication device. 5 (step S16). The transmitted operation history data is erased from the operation history storage means 33.

When the operation history receiving unit 54 of the information communication device 5 receives the operation history data from the writing device 3, the operation history receiving unit 54 updates the history table of the display state storage unit 51 based on the received operation history data (step S17). The means 55 is activated (step S18).
The image transmission unit 55 of the information communication device 5 acquires the content image data selected by the user from the image storage unit 52 (step S19), transmits the data to the writing device 3, and displays the transmission content. The history data is stored in the history table of the display state storage means 51 (steps S20 and S21).

When receiving the content image data from the information communication device 5, the image receiving means 32 of the writing device 3 converts the data into a data format used for the writing process for the electronic paper 4 and transmits it to the image writing means 34 (step S22). ).
The image writing means 34 of the writing device 3 receives the write data from the image receiving means 32, writes the content image based on the write data to the electronic paper 4 (step S23), and according to the result of the display control The operation history data is stored in the operation history storage means 33 (step S24).

In addition, a case where the writing device 3 of the display history management system according to the present example operates in a disconnected state in which communication with the information communication device 5 is not established will be described with reference to FIG.
When the display operation accepting unit 35 of the writing device 3 accepts an erasure instruction or a test pattern display instruction from the user, the instruction is transmitted to the image writing unit 34 (step S31), and the image writing unit 34 accepts the acceptance. Display control (erasing the display on the electronic paper 4 or writing a test pattern image) is performed according to the received instruction (step S32), and operation history data corresponding to the contents of the display control is stored in the operation history storage means 33. (Step S33).

  That is, in this example, the operation history data indicating the result of the display control of the electronic paper 4 by the writing device 3 based on the content image data transmitted last time and the content of the display control in which the writing device 3 operated independently thereafter. Is stored and held in the writing device 3, and when the information communication device 3 transmits data of a new content image to the writing device 3 (wireless communication state is connected), the above operation is performed from the writing device 3. History data (operation history data between the previous data transmission and the current data transmission) is transmitted, and the history table (display state history data) of the information communication device 3 is updated based on the operation history data.

FIG. 11 shows a main hardware configuration of the mobile communication terminal 2 that is a component of the information communication device 5 of this example.
That is, the mobile communication terminal 2 of this example includes a CPU 61 that performs various arithmetic processes, a RAM 62 that is a work area of the CPU 61, a ROM 63 that stores a basic control program, a program for realizing each function according to the present invention, and the like. An input / output I / F 64 that is an interface with devices such as a display screen that displays and outputs information to the user and operation buttons that receive input of information from the user, and an interface that communicates with the content server 1 It is composed of a computer having hardware resources such as a first communication I / F 65 and a second communication I / F 66 that is an interface for performing communication with the writing device 3.
The program according to the present invention is read from the ROM 63, developed in the RAM 62, and executed by the CPU 61, thereby realizing each functional unit according to the present invention.
In addition to the aspect in which each functional unit is realized by the software configuration as in this example, each functional unit may be realized by a dedicated hardware module.

FIG. 9 illustrates an overview of a display history management system according to the second embodiment of the present invention.
Note that the description of the same components as those in the first embodiment is omitted.
The information communication device 5 according to the display history management system of this example further includes a history request operation accepting unit 56 that accepts a history request transmission instruction from the user in the information communication device 5 described in the first embodiment. The operation history receiving unit 54 is activated in response to the history request operation receiving unit 56 receiving a history request transmission instruction.
That is, in this example, the operation history data is transmitted from the writing device 3 at a timing intended by the user, and the history table (display state history data) of the information communication device 3 is updated based on the operation history data.

FIG. 10 illustrates an overview of a display history management system according to the third embodiment of the present invention.
Note that the description of the same components as those in the first embodiment is omitted.
The information communication device 5 according to the display history management system of the present example indicates that the wireless communication state with the writing device 3 has changed from the non-connected state to the connected state to the information communication device 5 described in the first embodiment. The communication history detection means 57 is further provided, and the operation history reception means 54 is activated in response to the communication status detection means 57 detecting a change in the wireless communication status with the writing device 3. .
In other words, in this example, the operation history data is transmitted from the writing device 3 at the timing when the wireless communication connection is established, and the history table (display state history data) of the information communication device 3 is updated based on the operation history data. The

It is a figure which shows the outline | summary of the display history management system which concerns on 1st Example of this invention. 1 is a functional block diagram of an information communication device and a writing device according to a first embodiment of the present invention. It is a figure which shows the media table of the information communication apparatus which concerns on 1st Example of this invention. It is a figure which shows the appliance table of the information communication apparatus which concerns on 1st Example of this invention. It is a figure which shows the log | history table of the information communication apparatus which concerns on 1st Example of this invention. It is a figure which shows the log | history table of the writing apparatus which concerns on 1st Example of this invention. It is a figure which shows the flow of the process which concerns on 1st Example of this invention. It is a figure which shows the flow of the process which concerns on 1st Example of this invention. It is a functional block diagram of the information communication apparatus and writing device which concern on 2nd Example of this invention. It is a functional block diagram of the information communication apparatus and writing device which concern on 3rd Example of this invention. It is a hardware block diagram of the portable communication terminal which concerns on 1st Example of this invention. It is a functional block diagram of an information communication apparatus and a writing device.

Explanation of symbols

  1: content server 2: portable terminal device 3: writing device 4: electronic paper 5: information communication device 31: operation history transmission means 32: operation history storage means 33: image reception means 34: Image writing means 35: Display operation accepting means 51: Display state storage means 52: Image storage means 53: Image display operation accepting means 54: Operation history receiving means 55: Image sending means 56: History request Operation accepting means 57: Communication state detecting means

Claims (7)

A display control device and a management device that communicate with each other wirelessly,
The display control device applies a writing external force to a display holding medium that holds a formed image in a display state after a rewritable image is formed according to the writing external force and the writing external force is removed. Display control means for controlling the display content of the display holding medium, and first storage means for storing history information relating to display control of the display holding medium by the display control means ,
The management device receives an image information transmission instruction means for receiving an image information transmission instruction used for display control of the display holding medium in the display control apparatus from a user, and an image information transmission instruction by the image information transmission instruction means. A history request transmitting means for transmitting a history request to the display control device in response to the acceptance,
The display control device is stored in the first storage unit in response to the history request received by the history request receiving unit that receives the history request transmitted from the management device and the history request receiving unit . History information transmitting means for transmitting history information to the management device,
The management device includes history information receiving means for receiving history information transmitted from the display control device, second storage means for storing history information received by the history information receiving means, and history information for the history request. A display history management system comprising: image information transmitting means for transmitting the image information instructed to be transmitted to the display control device in response to reception by the history information receiving means . The display history management system according to claim 1 , wherein the display control unit includes information related to a result of display control for the display holding medium in the history information. The display control device includes execution instruction means for receiving an instruction to execute predetermined display control for the display holding medium from a user.
Said display control means performs display control corresponding to the execution instruction received by the execution instruction means, according to claim 1 or claim 2, wherein the inclusion of information about the contents of the display control in the history information Display history management system. A display control device that wirelessly communicates with a management device,
After the rewritable image is formed in accordance with the writing external force and the writing external force is removed, the writing holding force is applied to the display holding medium that holds the formed image in the display state, and the display holding medium is displayed. Display control means for controlling the contents;
Storage means for storing history information on the display control of the display holding medium by the display control means,
When the management device receives a request for transmission of image information used for display control of the display holding medium from a user, when the history request is transmitted from the management device, the received history request is received. A history request receiving means,
A history information transmission means in response to receiving the history request, transmits the history information stored in said storage means prior Symbol management device by the history request receiving unit,
Equipped with a,
The history information transmitted by the history information transmitting means is received and stored by the management device,
The display control device, wherein the display control unit controls display contents of the display holding medium based on the image information transmitted from the management device that has received history information . After the rewritable image is formed in accordance with the writing external force and the writing external force is removed, the writing holding force is applied to the display holding medium that holds the formed image in the display state, and the display holding medium is displayed. A management device that wirelessly communicates with a display control device that controls content,
Image information transmission instruction means for receiving an instruction to transmit image information used for display control of the display holding medium in the display control device;
In response to receiving an image information transmission instruction by the image information transmission instruction means, a history request transmission means for transmitting a history request to the display control device;
In response to the display control unit receives the history request, the history information on the display control of the display holding medium which is stored in the display control device is transmitted from the display control device, the transmitted history History information receiving means for receiving information;
Storage means for storing history information received by the history information receiving means;
Image information transmitting means for transmitting the image information instructed to be transmitted to the display control device in response to the history information for the history request being received by the history information receiving means;
Equipped with a,
A management apparatus , wherein display control of the display holding medium is performed by the display control apparatus based on the image information transmitted by the image information transmission means . In the computer of the display control device that wirelessly communicates with the management device,
After the rewritable image is formed in accordance with the writing external force and the writing external force is removed, the writing holding force is applied to the display holding medium that holds the formed image in the display state, and the display holding medium is displayed. A display control processing function that performs processing to control the contents;
A storage processing function that performs storage processing of the history information on the display control of the display holding medium by the display control processing function,
When the management device receives a request for transmission of image information used for display control of the display holding medium from a user, when the history request is transmitted from the management device, the received history request is received. History request reception processing function to perform processing,
In response to receiving the history request by the history request reception processing function, a history information transmission processing function which performs a process of transmitting a history information that is by Riki憶in the storage processing function before Symbol management device,
Is a program for realizing,
The history information transmitted by the history information transmission processing function is received and stored by the management device,
The display control processing function controls display contents of the display holding medium based on the image information instructed to be transmitted transmitted from the management apparatus that has received history information . After the rewritable image is formed in accordance with the writing external force and the writing external force is removed, the writing holding force is applied to the display holding medium that holds the formed image in the display state, and the display holding medium is displayed. To the computer of the management device that wirelessly communicates with the display control device that controls the contents,
An image information transmission instruction processing function for performing processing for receiving an instruction to transmit image information used for display control of the display holding medium in the display control device;
A history request transmission processing function for performing processing for transmitting a history request to the display control device in response to receiving an image information transmission instruction by the image information transmission instruction processing function;
In response to the display control unit receives the history request, the history information on the display control of the display holding medium which is stored in the display control device is transmitted from the display control device, the transmitted history History information reception processing function for processing to receive information ;
A storage processing function for performing storage processing of history information received by the history information reception processing function;
An image information transmission processing function for performing processing for transmitting the image information instructed to be transmitted to the display control device in response to reception of history information for the history request by the history information reception processing function;
Is a program for realizing,
A program in which display control of the display holding medium is performed by the display control device based on image information transmitted by the image information transmission processing function .

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