JP2008097168A - Data output system, portable terminal used therefor, data output device, data output method, program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data output system suppressing information leakage. <P>SOLUTION: This data output system comprises a portable terminal connectable to a data server storing data to be output via a network, and a data output device that can data-communicate with the portable terminal and outputs the data to be output. The portable terminal comprises a data acquiring means for acquiring data to be output from the data server, and a data transmitting means for transmitting the acquired data to be output to the data output device. The data output device comprises a means for receiving the data to be output transmitted from the portable terminal and storing it, and a means for performing a predetermined processing including outputting the stored data to be output. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a data output system, and more particularly to a system that outputs data stored in a server on a network by a data output device such as a projector installed outside.

  Conventionally, when making an electronic presentation outside the company, document data is generally stored in an electronic information device that can store data, such as a personal computer or an external memory, and a video is displayed on the projector through the electronic information device. A method of performing output has been adopted. For this reason, it is necessary to carry a personal computer or external memory for storing document data. If the personal computer or the external memory is lost or stolen, there is a risk of information leakage.

  Patent Document 1 below discloses a system in which presentation data is stored in a portable terminal, the data is transmitted to a projector, and projected from the projector. In addition, according to the system disclosed in this document, control signals such as turning on / off the projector, starting projection, and switching the projection screen can be controlled by wirelessly transmitting a control signal from the portable terminal to the projector. It can also be done.

JP 2003-198870 A

  However, the system disclosed in Patent Document 1 still has a problem of leakage of presentation data. In other words, in order to transmit the data in the portable terminal to the projector, it is necessary to take out the portable terminal storing the presentation data, as described above, and the portable terminal may be lost or stolen when taken out. There may be a problem of information leakage.

  In addition to data to be projected on the projector, video and image data to be reproduced and output on a monitor, document data to be output on a printer, music data to be output on an audio device, etc., can be output from any external output device. Even when possible data is carried by a portable terminal or a portable memory, the problem of information leakage occurs as described above. Therefore, there arises a problem that company confidential information, personal information, copyright data and the like cannot be properly protected.

  Therefore, an object of the present invention is to provide a data output system that can improve the inconveniences of the above-described conventional example, and in particular, can suppress information leakage.

Therefore, a data output system according to one aspect of the present invention is
A data output system comprising: a portable terminal connectable to a data server in which output target data is stored via a network; and a data output device capable of data communication with the portable terminal and outputting output target data. ,
The portable terminal includes data acquisition means for acquiring output target data from the data server, and data transfer means for transferring the acquired output target data to the data output device,
Output target data storage processing means for receiving and storing output target data transferred from the portable terminal, and output target data processing means for performing predetermined processing including output processing of the stored output target data And with,
It is characterized by that.

  According to the above invention, first, the output target data stored in the data server is acquired by the mobile terminal via the network, and the acquired data is transferred from the mobile terminal to the data output device. And the said output object data can be output from a data output device. Thus, the user can acquire and transfer the data to be output from the portable terminal only when the output target data is necessary. That is, the output target data is only relayed to the portable terminal when used, and is not stored in the portable terminal in other situations. Therefore, even if the mobile terminal is lost, the occurrence of the information leakage problem can be suppressed, and the security can be improved.

  Further, the portable terminal is characterized in that it includes a data erasing unit that erases the acquired output target data after transferring it to the data output device. As a result, output target data that is no longer necessary after being transferred to the data output device can be deleted from the portable terminal, and even if the portable terminal is lost, information leakage can be suppressed, further improving security. Can be achieved.

  The portable terminal includes data processing command means for issuing a processing command for output target data to the data output device, and the output target data processing means of the data output device stores the output stored according to the processing command from the portable terminal. It is characterized in that a predetermined process is performed on the target data. Then, the data processing command means of the portable terminal issues an output processing command for instructing output processing of the output target data, and the output target data processing means of the data output device performs output processing of the output target data according to the output processing command. It is characterized by doing. Further, the data processing command means of the portable terminal issues a data erasure command for instructing to erase the output target data from within the data output device, and the output target data processing means of the data output device stores the stored output target data. It is characterized by erasing. At this time, the data processing command means of the portable terminal is characterized in that it issues a data erase command when data is erased by the data erase means.

  In this way, processing for output target data by the data output device, for example, output processing of output target data or data erasure is instructed from the portable terminal, and processing corresponding to this is executed on the data output device. The Therefore, it is possible to improve the operability and convenience of the user and further improve the security. In particular, by deleting the output target data in the data output device in conjunction with the deletion of the output target data in the portable terminal, it is possible to further improve the security.

  Further, the output target data processing means of the data output device is characterized by comprising output disable means for disabling output processing of the output target data in accordance with the input status of the processing command for the output target data. The output disable means operates when there is no input of a processing command for the output target data for a predetermined time. Further, the output disable means deletes the output target data stored in the data output device.

  This disables output processing, such as locking access to the output target data or deleting the output target data itself when an operation on the output target data is completed or an illegal output operation is performed. As a result, information leakage can be suppressed, and further security can be improved.

And as a more specific configuration of the data output system,
Mobile device
Data after the acquired output target data is transferred to the data output device, and when the command to end the output of the output target data by the data output device is input, the output target data is deleted from the portable terminal Erasing means;
An output processing command for instructing the data output device to specify a part of the output target data and outputting the specified portion, and an instruction to delete the output target data from the data output device at the time of erasing by the data erasing means A data processing command means for issuing a processing command including:
The output target data processing means of the data output device includes an output process for outputting a part of the output target data specified by the output processing command, and an erasing process for erasing the output target data stored in response to the data erasing command. ,I do,
It is characterized by that.

Further, the output target data processing means of the data output device stops the output of the stored output target data or erases it from the data output device when there is no processing command for the output target data for a certain period of time. With output disable means,
It is characterized by that.

  As a result, on the mobile terminal, a predetermined page when the output target data is a document or image data having a plurality of pages, or a predetermined title or intermediate position when the output target data is moving image data or music data is displayed. By designating, the part designated by the data output device is output. Thereby, the operability at the time of data output by the user can be improved. Further, when a command to stop the output control of the output target data as described above is input to the mobile terminal, the output target data is erased from the mobile terminal, and data is output from the mobile terminal to the data output device. An erasure command is issued, and in response to this, the output target data is also erased from within the data output device. As a result, leakage of output target data can be prevented, and security can be improved.

Moreover, the portable terminal which is the other form of this invention,
A portable terminal that is connectable to a data server in which output target data is stored via a network and is capable of data communication with a data output device that performs a predetermined process including a process of outputting the output target data,
Data acquisition means for acquiring output target data from the data server, data transfer means for transferring the acquired output target data to the data output device,
It is characterized by having.

  The portable terminal is characterized by comprising data erasing means for erasing the acquired output target data after transferring it to the data output device. Further, the data output device having a function of processing the output target data in response to the processing command from the portable terminal is provided with a data processing command means for instructing the processing content of the output target data on the data output device. It is characterized by. The data processing command means is characterized by issuing an output processing command for instructing output processing of output target data and a data erasing command for instructing to erase the output target data from within the data output device.

And as a more specific configuration of the mobile terminal,
Data after the acquired output target data is transferred to the data output device, and when the command to end the output of the output target data by the data output device is input, the output target data is deleted from the portable terminal Erasing means;
An output processing command for instructing the data output device to specify a part of the output target data and output the specified portion, and to erase the output target data from the data output device when the data erasing unit deletes the data. A data processing command means for issuing a processing command including a data erasing command for commanding;
It is characterized by having.

Moreover, the program for portable terminals which is the other form of this invention is the following.
The data server can be connected to a data output device that can be connected to a data server in which the output target data is stored via a network and can perform data communication with a data output device that performs a predetermined process including a process of outputting the output target data. A data acquisition unit that acquires data and a data transfer unit that transfers the acquired output target data to the data output device are realized.

  The program is characterized in that the portable terminal realizes data erasure means for erasing the acquired output target data after being transferred to the data output device. Further, data processing for instructing the mobile terminal to process the output target data on the data output device to a data output device having a function of processing the output target data in response to a processing command from the mobile terminal. The command means is realized.

And as a more specific configuration of the program for the mobile terminal,
On your mobile device,
Data after the acquired output target data is transferred to the data output device, and when the command to end the output of the output target data by the data output device is input, the output target data is deleted from the portable terminal Erasing means;
An output processing command for instructing the data output device to specify a part of the output target data and outputting the specified portion, and an instruction to delete the output target data from the data output device at the time of erasing by the data erasing means A data processing command means for issuing a processing command including:
It is characterized by realizing.

  A data output apparatus according to another aspect of the present invention is capable of data communication with a portable terminal that can be connected to a data server in which output target data is stored via a network, and outputs the output target data. And an output target data storage processing unit that receives and stores the output target data acquired from the data server and transferred from the mobile terminal, and a predetermined process including output processing of the stored output target data And output target data processing means for performing processing.

  The output target data processing means receives a processing command for the output target data issued from the portable terminal, and performs a predetermined process on the output target data stored in response to the processing command. Further, the output target data processing means receives an output processing command for instructing output processing of the output target data issued from the mobile terminal, and performs output processing of the output target data according to the output processing command. It is said. The output target data processing means accepts a data erasure command for instructing to erase the output target data from within the data output device issued from the mobile terminal, and the output target data stored in response to the data erasure command It is characterized by erasing.

  Further, the output target data processing means includes an output disable means for disabling output processing of the output target data in accordance with an input status of a processing command for the output target data. In particular, this output disable means Is operated when there is no input of a processing command for the output target data for a certain period of time. Further, the output disable means is characterized in that the output target data stored in the data output device is erased.

And as a more specific configuration of the data output device,
The output target data processing means is
A part of the output target data specified by the output processing command is received in response to an output processing command that designates a part of the output target data issued from the portable terminal and outputs the specified part. Output processing to output,
A data erasure command for instructing to erase the output target data from the data output device issued when the output target data is erased from the portable terminal in the portable terminal is received, and the output stored in accordance with this Erase processing to erase the target data,
Run the
It is characterized by that.

  The output target data processing means includes a data output disable means for stopping output of the stored output target data or erasing from the data output device when there is no processing command for the output target data for a predetermined time. It is characterized by having.

  The data output device described above is, for example, an image output device such as a projector provided with output target data processing means including output processing for outputting output target data as an image.

A program for a data output device according to another embodiment of the present invention is as follows:
Data communication is possible with a portable terminal that can be connected via a network to a data server in which output target data is stored, and a data output device that outputs output target data,
The output target data storage processing means for receiving the output target data acquired from the data server and transferred from the mobile terminal and storing it in the storage device, and a predetermined process including the output processing of the stored output target data Output target data processing means for performing processing;
It is characterized by realizing.

  In the above program, the output target data processing means receives a processing command for the output target data issued from the mobile terminal, and performs a predetermined process on the output target data stored according to the processing command. It is a feature. Further, the output target data processing means is characterized in that output processing of the output target data is disabled according to the input status of the processing command for the output target data.

And, as a more specific configuration of the program for the data output device,
The output target data processing means is
A part of the output target data specified by the output processing command is received in response to an output processing command that designates a part of the output target data issued from the portable terminal and outputs the specified part. Output processing to output,
A data erasure command for instructing to erase the output target data from the data output device issued when the output target data is erased from the portable terminal in the portable terminal is received, and the output stored in accordance with this Erase processing to erase the target data,
It is characterized by performing.

  Further, the output target data processing means is characterized in that when there is no processing command for the output target data for a certain period of time, the output of the stored output target data is stopped or erased from within the data output device. Yes.

Furthermore, a data output method according to another aspect of the present invention includes:
A data output method comprising: a portable terminal connectable to a data server in which output target data is stored via a network; and a data output device capable of data communication with the portable terminal, and outputting the output target data from the data output device Because
The portable terminal acquires the output target data from the data server, transfers the acquired output target data to the data output device,
The data output device receives and stores the output target data transferred from the mobile terminal, and performs predetermined processing including output processing of the stored output target data.
It is characterized by that.

  The data output method is characterized in that the portable terminal deletes the acquired output target data after transferring it to the data output device. In addition, after the portable terminal transfers the output target data, it issues a processing command for the output target data to the data output device, and after the data output device receives and stores the output target data transferred from the portable terminal, the portable terminal It is characterized in that a processing command issued from a terminal is received and a predetermined processing is performed on output target data stored in accordance with the processing command. Further, when the portable terminal erases the output target data in the portable terminal, the portable terminal issues an output target data erasure command to the data output device. Furthermore, after the data output device receives and stores the output target data transferred from the portable terminal, it monitors the input status of the processing command for the output target data and disables the output processing of the output target data according to the monitoring status It is characterized by that.

And as a more specific configuration of the data output method,
After the portable terminal transfers the acquired output target data to the data output device, the mobile terminal issues an output processing command that instructs the data output device to specify a part of the output target data and output the specified part. In response, the data output device outputs a portion of the output target data specified in the output processing command,
After the portable terminal transfers the acquired output target data to the data output device, when the command to end the output of the output target data by the data output device is input, the output target data is stored in the portable terminal. The data output command is issued to instruct the data output device to delete the output target data from the data output device, and the data output device stores the output target data accordingly. ,
It is characterized by that.

  In addition, after the data output device receives and stores the output target data transferred from the mobile terminal, the output of the stored output target data is stopped when there is no processing command for the output target data for a certain period of time. Alternatively, the data is erased from the data output device.

  Even the invention of the portable terminal, the data output device, the program, and the data output method having the above-described configuration operates in the same manner as the above-described data output system, and thus the above-described object of the present invention can be achieved.

  Since the present invention is configured and functions as described above, according to this, the user acquires the data to be output from the data server to the portable terminal only when necessary, and transfers it to the data output device. Sometimes it is not stored in the mobile terminal. Therefore, even if the mobile terminal is lost, it is possible to suppress the occurrence of the information leakage problem and to improve the security.

  According to the present invention, output target data such as confidential data is output so that a human being can recognize the output target data in a data output device on the go while ensuring security without storing the data in an electronic device and carrying it. It has the feature that it can be. Hereinafter, specific configurations and operations will be described with reference to examples.

  A first embodiment of the present invention will be described with reference to FIGS. 1 to 5 are diagrams showing the configuration of the present invention, and FIGS. 6 to 12 are diagrams for explaining the operation.

  In the present embodiment, a description will be given of a system for outputting presentation data created by a company A to a projector when a user of the company A makes a presentation using a projector at the company B.

[Constitution]
In this embodiment, as shown in FIG. 1, a registration terminal 1 used by a user of company A, and a content conversion server 2 and a content distribution server 3 connected to the registration terminal 1 are provided. In addition, a mobile phone terminal 6 used by a user of the company A that can be connected to the content distribution server 3 via the Internet network 4 and the mobile phone data communication network 5, and a company B capable of data communication with the mobile phone terminal 6 And a projector 7 installed in the projector. In particular, the mobile phone terminal 6 and the projector 7 constitute a data output system that outputs presentation data that is output target data stored in the data distribution server 3. Hereinafter, each configuration will be described in detail.

  The registration terminal 1 is an information processing apparatus such as a personal computer used for office work or the like in the company A. In this embodiment, the registration terminal 1 is used by a user U described later. The registration device 1 has a function of creating, editing, and saving document data. In particular, the registration device 1 creates presentation data (output target data) used when presenting to the company B by the projector 7 described later. It is possible to save. Also, the registration device 1 sends the content data, which is presentation data created and stored, to the content conversion server 2 connected via a network such as an in-house LAN, and requests the content distribution server 3 to register. It has a function. At the time of this registration request, in order to authenticate whether or not the registration request is from a user having a legitimate authority, a user ID unique to the user or an employee in the company, or a terminal unique to the registration terminal 1 itself User information such as ID is transmitted from the registration terminal 1 to the content conversion server 2 for authentication.

  The content conversion server 2 is an information processing apparatus such as a workstation server that is installed in a data center managed by the company A and is connected to the in-house LAN of the company A. The content conversion server 2 receives the content data that is the presentation data transmitted from the registration terminal 1, and generates the output image of the presentation data as image data, and the generated output image image And a data format (preview data) that can be viewed on an information processing terminal other than a personal computer such as a mobile phone. Specifically, the presentation data received from the registration terminal 1 is analyzed for information such as the format, document title, number of pages, etc., and an output image image, which is image data in a format output by a projector, is generated. It is converted into data that can be viewed on a terminal and used for preview. The content data for presentation that has been generated and converted is transmitted to the content distribution server 3 that is also connected via the in-house LAN. The content conversion server 2 has a function of authenticating whether or not the registered terminal 1 or the user who has access has the access authority, and the employee of the company A is connected to the content conversion server 2 itself or another computer. It has a function of authenticating by comparing with user information transmitted at the time of access from the registration terminal 1 based on a database in which a unique user ID and a terminal ID unique to the registration terminal 1 are registered in advance.

  The content distribution server 3 (data server) is an information processing apparatus such as a workstation server that is installed in a data center managed by the company A and is connected to the in-house LAN of the company A. The content distribution server 3 has a function of receiving and managing content data, which is presentation data transmitted from the content conversion server 2, and transmitting data to the mobile phone terminal 6. Specifically, a content registration processing unit 31, a user authentication processing unit 32, and a content distribution processing unit 33 are installed in an arithmetic device (not shown) such as a CPU of the content distribution server 3 by incorporating a predetermined program. And has been built. A content data storage unit 34 is formed in a storage device (not shown) such as a hard disk drive. Hereinafter, the processing units 31 to 33 and the storage unit 34 will be described.

  The content registration processing unit 31 receives the content data transmitted from the content conversion server 2 and registers it in the content data storage unit 34. The received presentation data, which is content data, can be viewed on an output image generated as image data in a format output by a projector, a mobile phone terminal, etc. as described above, and is used for previewing. The converted data is registered in the content data storage unit 34 as it is.

  When there is an access from the mobile phone terminal 6 or the like, the user authentication processing unit 32 performs an authentication process as to whether or not the mobile phone terminal 6 or the user has a right access right to the content data. For example, when an access is made from the mobile phone terminal 6, the user ID unique to the user transmitted at the time of access, the terminal ID unique to the mobile phone terminal 6 or the like is received, and the content distribution server 3 itself or other Based on a database such as a terminal ID such as a terminal ID unique to each company A employee stored in advance in the computer and a telephone number of a mobile phone terminal, etc. Has a function to authenticate. Then, the mobile phone terminal 6 that has failed in authentication is denied access, and the content distribution processing unit 33 permits content distribution to the mobile phone terminal 6 that has succeeded in authentication.

  Then, the content distribution processing unit 33 sets an area that can be accessed only for a certain period of time for the mobile phone terminal 6 that has been successfully authenticated, generates a timed URL that is an access address to the area, and generates the mobile phone terminal 6 and allow access. Then, the content data stored in the content data storage unit 34 is transmitted via this timed URL. For example, as shown in FIG. 6A, a title list of all content data and a title list of content data searched by specifying a keyword as shown in FIG. 6B are transmitted and displayed. Further, as shown in FIG. 7, preview data of content data selected by the mobile phone terminal 6 from the list-displayed content data is transmitted and displayed. Finally, the output data of the content data selected by the mobile phone terminal 6, that is, the output data image to be output by the projector generated by the content conversion server 2 as described above, Transmit to the mobile phone terminal 6. Further, the content distribution processing unit 33 deletes the generated timed URL after a predetermined time has elapsed (for example, after 2 hours).

  Next, the mobile phone terminal 6 (mobile terminal) will be described with reference to FIG. 3 and FIGS. As shown in FIG. 3, the mobile phone terminal 6 includes an arithmetic device 6A such as a CPU, a storage device 6B such as a ROM / RAM configured by a flash memory, and an operation unit 6C provided with operation buttons such as a numeric keypad. And a display unit 6D such as a liquid crystal screen. Then, this mobile phone terminal 6 is a legitimate access to the content data such as a user who has created the content data registered in the content distribution server 3 by operating the registration terminal 1 or an employee of the company A. This terminal is operated by an authorized person, and is used when going to company B and giving a presentation at company B. At this time, the mobile phone terminal 6 is connected to the projector 7 by USB connection or infrared communication.

  Then, a predetermined program is incorporated into the arithmetic device 6A, whereby a user authentication processing unit 61, a content acquisition processing unit 62, a content transfer processing unit 63, a control command transmission processing unit 64, and a content deletion processing unit. 65 is constructed. In addition, a content storage unit 66 is formed in the storage device 6B. Hereinafter, the processing units 61 to 65 and the storage unit 66 will be described in detail.

  When accessing the content distribution server 3 to request content data, the user authentication processing unit 61 transmits, for example, a user ID unique to the user U or a terminal ID unique to the terminal as authentication information. . Then, when the content distribution server 3 succeeds in authentication, content distribution permission is obtained. The content acquisition processing unit 62 (data acquisition means) has a function of requesting and acquiring content data, which is presentation data required from the content distribution server 3, when the user authentication processing unit 61 succeeds in authentication. Have. Specifically, first, a list of contents that can be distributed from the content distribution server 3 as shown in FIG. 6A and a keyword search as shown in FIG. The content list extracted by the above is displayed, and preview data of the content selected from the list is displayed as shown in FIG. Then, by selecting “Determine” on the preview screen of the presentation data desired by the user, an output data image of the content can be obtained. The acquired content data is stored in the content storage unit 66.

  The content transfer processing unit 63 (data transfer unit) has a function of outputting the content data acquired and stored in the content storage unit 66 to the projector 7. For example, when content data is acquired by the content acquisition processing unit 62, an “external output” button is displayed on the screen of the mobile phone terminal 6. Transfer using USB connection or infrared communication.

  The control command transmission processing unit 64 (data processing command means) issues a processing command for the presentation data transferred to the projector 7 as described above by USB connection or infrared communication. As the processing command, for example, an output processing command for instructing to output the data of the presentation data, that is, command information for instructing to project the output data image from the projector 7 is issued. Specifically, as the output processing command, various commands such as a command to start or stop outputting the presentation data and a page feed command for slide-type presentation data are issued. Note that when the output processing command is transmitted, the content processed by the projector 7 in response to the command from the mobile phone terminal 6, that is, the display output status of the presentation data is notified from the projector 7, but the control command transmission processing unit 64 receives this, and a display screen corresponding to this is displayed on the display unit 6D as shown in FIG. Further, the processing command includes a data erasure command for instructing to delete the presentation data transferred to the projector 7 from the projector 7. This data erasure command is output to the projector 7 when a command for stopping (ending) the display output of the presentation data is input from the user via the operation unit 6C of the mobile phone terminal 6, for example. Issued to the projector 7 when the content deletion processing unit 65 to be described later deletes the content data already transferred to the projector 7 from the content storage unit 66 in the mobile phone terminal 6, that is, the presentation data. .

  Then, the content deletion processing unit 65 (data erasing means) distributes content as described above when, for example, an instruction to delete content data, ie, presentation data, is input to the operation unit 6C of the mobile phone terminal 6 by the user. The content data acquired from the server 3 and stored in the content storage unit 66 is operated to be deleted. However, the operation timing of the content data erasing process by the content deletion processing unit 65 is not limited. For example, the content data erasing process may be automatically performed immediately after the content data is transferred to the projector 7. It may be carried out when an end command is input.

  Next, the projector 7 (data output device, image output device) will be described with reference to FIGS. The projector 7 is a projector installed in a conference room of company B where presentations are made by employees of company A. As shown in FIG. 4, the projector 7 is mainly an image such as an arithmetic unit 7A such as a CPU and a VRAM. A storage device 7B for accumulating data and a projection device 7C are provided, and an output data image of presentation data is projected onto a screen or the like by the projection device 7C and displayed so as to be visible to the user.

  Then, by incorporating a predetermined program into the arithmetic device 7A of the projector 7, a content reception processing unit 71, a page control command reception processing unit 72, a monitoring processing unit 73, and a deletion command reception processing unit 74 are provided. , Has been built. In addition, a content storage unit 75 is formed in the storage device 7B. Hereinafter, the processing units 71 to 74 and the storage unit 75 will be described in detail.

  The content reception processing unit 71 (output target data storage processing unit) first opens a control function so that a communication protocol with the mobile phone terminal 6 can be determined or a control command from the mobile phone terminal 6 can be received. Processing is performed. Then, as described above, presentation data that is content data transferred from the mobile phone terminal 6 is received and stored in the content storage unit 75. In addition, when the content reception processing unit 71 stores the received presentation data in the content storage unit 75, which address (area) in the content storage unit 75 stores each page of the presentation data. Recognizing and generating a correspondence table between addresses and pages as shown in FIG. Then, the correspondence table is stored so that it can be referred to by the page control command reception processing unit 72, such as being held in the page control command reception processing unit 72 itself.

  Further, the page control command reception processing unit 72 (output target data processing means) receives the output processing command which is the processing command from the control command transmission processing unit 64 of the mobile phone terminal 6 described above, and stores the content accordingly. An output process of the presentation data stored in the unit 75 is executed. For example, page feed control such as starting / stopping the projection output of the presentation data from the projection device 7C or displaying the designated page is performed. For example, in the page feed control, first, referring to the correspondence table as shown in FIG. 5 described above, the content in which the data of the page is stored from the page number specified by the output processing command of the mobile phone terminal 6 The address of the storage unit 75 is recognized. Then, the address is accessed, the image data of the designated page is extracted and output from the projection device 7C.

  Similarly, the deletion command reception processing unit 74 (output target data processing means) also receives the processing command from the control command transmission processing unit 64 of the mobile phone terminal 6 described above. In response, the presentation data stored in the content storage unit 75 is erased. Note that the page control command reception processing unit 72 and the deletion command reception processing unit 74 are the same as described above even in response to an output processing command or a data erasing command input from an operation unit (not shown) provided in the projector 7. Operate.

  The monitoring processing unit 73 (output disable means) monitors the operation of the page control command reception processing unit 72 to monitor the input status of processing commands for the presentation data stored in the content storage unit 75. The function of controlling to disable the output processing of the presentation data is provided. For example, when a processing command is not input to a certain presentation data from the operation unit of the projector 7 or the mobile phone terminal 6 for a certain period of time (for example, 1 hour), a command to lock the presentation data is not output. It is issued to the page control command reception processing unit 72 to make it inaccessible so that data cannot be referred from the outside. Alternatively, a command for deleting the presentation data may be issued to the deletion command reception processing unit 74. As a result, the presentation data is erased from the content storage unit 75.

[Operation]
Next, a data output operation by the system will be described with reference to FIGS. 9 and 10, 11, and 12. Here, the operation when the user U of the company A goes to the company B and makes a presentation using the projector 7 will be described.

  First, operations when registering content data, which is presentation data created by a user U of company A, in the content distribution server 3 (see arrow (1) in FIG. 9), mainly the sequence diagram of FIG. Will be described with reference to FIG.

  First, the user U of the company A creates presentation data using the registration terminal 1 and stores it (not shown). Then, the user U accesses the content conversion server 2 at the registration terminal 1, and inputs and transmits the user ID of the user U himself (step S1). Then, the content conversion server 2 refers to the employee database of company A prepared in advance to check whether the user U has the authority to register content, and performs user authentication (step S2). If the authentication is successful, the content conversion server 2 notifies the registration terminal 1 of the result (step S3). In response to this, the registration terminal 1 converts the stored presentation data as content data. It transmits to the server 2 and requests registration (step 4).

  Then, the content conversion server 2 analyzes the content data that is the presentation data transmitted from the registration terminal 1 (step S5), and generates output data in an image data format that can be output by the projector 7 (step S5). S6), it is converted into preview data that can be viewed on the mobile phone terminal 6 or the like (step S7). Thereafter, the converted presentation data is transmitted from the content conversion server 2 to the content distribution server 3 (step S8), and the presentation data is registered in the content distribution server 3 as content (step S9).

  Next, the mobile phone terminal 6 operated by the user U of the company A who went to the company B acquires the presentation data registered in the content distribution server 3 and further transfers the data to the projector. The description will be made mainly with reference to the sequence diagram of FIG. 11 (see arrows (2), (3), (4) of FIG. 9).

  First, the user U (or another employee) who is an employee of the company A registers the presentation data in the content distribution server 3 as described above, and then the mobile phone terminal registered in the database in the company A. Go to company B to hold a presentation (see arrow (2) in FIG. 9). Then, the mobile phone terminal 6 brought in accesses the content distribution server 3 via the Internet network 4 or the like (step S11). Then, since user information such as a user ID and a terminal ID is requested from the content distribution server 3 (step S12), in response to this, the user U transmits the user ID and the terminal ID as authentication information (step S13). ). Then, the content distribution server 3 refers to the employee database of the company A prepared in advance and checks whether the mobile phone terminal 6 that has accessed has a legitimate authority to acquire the content data. User authentication is performed (step S14).

  If the authentication is successful, the content distribution server 3 transmits information on the content permitted to be distributed to the mobile phone terminal 6 (step S15). At this time, first, the content distribution server 3 generates a timed URL that can be accessed only by the mobile phone terminal 6 that has been successfully authenticated, and carries a list of titles of registered content that can be distributed from the address area of the URL. Transmit to the telephone terminal 6. For example, as shown in FIG. 6A, it is displayed on the display unit 6 </ b> D of the mobile phone terminal 6. If necessary, the contents are narrowed down by the keyword entered using the search keyword, and the title list is transmitted to the mobile phone terminal 6 and displayed on the display unit 6D as shown in FIG. 6B. . Thereafter, when the user U selects a desired title on the display unit 6D of the mobile phone terminal 6, such information is notified to the content distribution server 3 (step S16), and preview data and data of the selected content data are displayed. Meta information such as the storage location is transmitted from the timed URL of the content distribution server 3 to the mobile phone terminal 6 (step S17). FIG. 7 shows an example when the preview data is displayed on the display unit 6D of the mobile phone terminal 6 at this time.

  When the user U sees the preview data and wishes to acquire the content data, the user U designates the content to the content distribution server 3 by selecting the “decision” button shown in FIG. (Step S18). Then, all of the image data to be output to the projector 7 out of the designated content data is transmitted from the timed URL of the content distribution server 3 (step S19), which is received by the mobile phone terminal 6 and temporarily. Store (see step S20, arrow (3) in FIG. 9). Thereafter, the content data acquired by the mobile phone terminal 6 is transferred from the mobile phone terminal 6 to the projector 7 (see step S21, arrow (4) in FIG. 9). This transfer process will be described later with reference to FIG. Then, after a certain time, the time URL for content distribution set in the content distribution server 3 is deleted (step S22).

  Next, the operation when the user U transfers presentation data from the mobile phone terminal 6 to the projector 7 at the company B and makes a presentation will be described with reference mainly to the sequence diagram of FIG. (See arrow (4) in FIG. 9).

  First, the user U connects the mobile phone terminal 6 and the projector 7 to each other using USB connection, infrared communication, or the like, so that the mobile phone terminal 6 issues a control request to the projector 7 (step S31). Accordingly, since the control function of the projector 7 is opened (step S32), the mobile phone terminal 6 transmits content data (step S33). The projector 7 that has received the transmitted content data notifies the mobile phone terminal 6 of a reception completion notification (step S34), and stores the received content data in the projector 7 (step S35). As a result, the content data is transferred from the mobile phone terminal 6 to the projector 7. In the series of transfer processes, for example, when the content data is acquired by the mobile phone terminal 6, a button such as “external output” is displayed. Executed when this is selected. Accordingly, the content data transmitted from the content distribution server 3 is stored in the projector 7 by temporarily relaying the mobile phone terminal 6.

  Subsequently, the user U can transmit a content data control command from the mobile phone terminal 6 to the projector 7 via a USB connection or the like by starting the projector control application on the mobile phone terminal 6. . For example, when a command for outputting a specific page of presentation data or a command for enlarging / reducing the screen is input, the command is transmitted from the mobile phone terminal 6 to the projector 7 (step S36). Performs page projection control, such as projecting and displaying a specific page or displaying an enlarged projection (step S37). Then, the projector 7 notifies the mobile phone terminal 6 of the page projection control result (step S38). At this time, the cellular phone terminal 6 displays the image data currently projected and displayed by the projector 7 on the display unit 6D of the terminal 6 as shown in FIG.

  Thereafter, when the user U ends the presentation and inputs an instruction to end the output control of the presentation data to the mobile phone terminal 6 (step S39: YES), the content data stored in the mobile phone terminal 6 is deleted. (Step S40). Then, an instruction to delete the content data stored in the projector 7 is issued from the mobile phone terminal 6 to the projector 7 (step S41), and the content data stored in the projector 7 is also deleted accordingly. (Step S43).

  The projector 7 monitors the presence or absence of a control command for the presentation data stored in the projector 7 (step S42). If there is no control command for a certain period of time (step S42: Yes), The content data stored in the projector 7 is also deleted (step S43).

  As described above, according to the present invention, content data such as presentation data stored in the content distribution server 3 is acquired by the mobile phone terminal 6 via the network, and the acquired data is The data can be transferred from the mobile phone terminal 6 to the projector and output from the projector 7. As a result, the user U can obtain and transfer from the content distribution server 3 at the mobile phone terminal 6 only when presentation data is required, and in the above example, only when visiting the company B and making a presentation. For this reason, the presentation data is not stored in the mobile phone terminal 6 in other situations. Therefore, even if the mobile phone terminal 6 is lost or stolen, the occurrence of the information leakage problem can be suppressed, and the security can be improved.

  Further, the security can be improved by deleting the presentation data that is no longer required after the presentation is completed by the projector 7 from the mobile phone terminal 6 or the projector 7 after the transfer to the projector 7. In particular, by deleting the data in the projector 7 in conjunction with the deletion of the presentation data in the mobile phone terminal 6, no content data remains other than the content distribution server 3, thereby further improving the security. be able to. In addition, the URL used when the content distribution server 3 provides the content data to the mobile phone terminal 6 is a time-limited URL that is deleted after a certain period of time, so that the content distribution server 3 can be deleted by another user without a legitimate authority. Content data can be prevented from being acquired from the network, and security can be further improved.

  Further, in the projector 7, when the operation on the content data is completed or an illegal output operation is performed, the output processing is disabled by locking the access to the content data or deleting the content data itself. Thus, information leakage can be suppressed, and further security can be improved.

  Further, when the mobile phone terminal 6 or the projector 7 is turned off by forming an area (content storage unit 66, content storage unit 75) for storing content data in the mobile phone terminal 6 or the projector 7 in the RAM. The content data can be automatically deleted.

  Next, a second embodiment of the present invention will be described with reference to FIG. In the present embodiment, the type of content data to be output is different from that in the first embodiment, and the apparatus for outputting the content data so that a human can recognize it is also different.

  First, the content data in the present embodiment is moving image data, and is data used to make a business presentation at another company by a user of company A as in the first embodiment. The content data is registered in the content distribution server 3 from the registration terminal 1 of the company A via the content conversion server 2 as described above. At this time, in the content conversion server 2, for example, several cut still images or a part of moving images of the moving image data are generated as preview data, and are stored in the content distribution server 3 together with all moving image data.

  Then, when the user U goes to the company C, the mobile phone terminal 6 acquires content data as moving image data via the Internet 4 or the like as described above, and the television monitor installed in the conference room or the like of the company C. 8 (data output device). At this time, the television monitor 8 has the same configuration as the projector 7 described in the first embodiment, has a function of storing content data transferred from the mobile phone terminal 6, and from the mobile phone terminal 6. The content data processing command is received, and processing such as reproduction of the content data is executed. The processing commands include playback / stop, fast forward, rewind, playback from an intermediate point by designating a predetermined scene and playback time, frame advance playback, and the like. Thereby, the moving image data as the content data can be displayed and output on the television monitor 8, and the user can audition this.

  The mobile phone terminal 6 has a function of deleting content data from the terminal 6 after transferring the content data to the television monitor 8. In addition, according to the command from the mobile phone terminal 6 or when there is no operation command for a certain period of time by the timer function in the television monitor 8, there is a function of deleting the moving image data in the television monitor 8.

  Here, in the above description, the moving image data for presentation has been described as an example of the content data, but content data such as a movie may be used. In this case, the content distribution server 3 functions to distribute the accumulated content data to the user U (mobile phone terminal 6) who has a content distribution contract. The content data can be viewed by transferring the content data to the television monitor 8 at home or the like. Thereby, the outflow of the content from the user U, the illegal acquisition of the content by other users, etc. can be prevented, and the copyright can be protected.

  Next, a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the type of content data to be output is different from that in the first embodiment, and the apparatus for outputting the content data so that a human can recognize it is also different.

  First, the content data in the present embodiment is music data, which is used by the user U to reproduce and listen to music data on the car stereo device 9 installed in the car D. This content data is stored in advance in the content distribution server 3, and a part of the music data is generated in advance as trial listening data data and stored together with all the music data.

  Then, when the user U gets into the car D, the mobile phone terminal 6 is connected to the car audio device 9 (data output device) by a communication means such as USB connection or infrared communication, and the same as described above via the Internet 4 or the like. Then, the content distribution server 3 that has been contracted for use is accessed, content data that is music data is acquired, and transferred to the car audio device 8. At this time, the car audio device 9 has the same configuration as the projector 7 described in the first embodiment and the television monitor 8 described in the second embodiment, and the content data transferred from the mobile phone terminal 6 is received. In addition to having a function of storing, it has a function of receiving a content data processing command from the mobile phone terminal 6 and executing processing such as reproduction of the content data. The processing commands include playback / stop, playback by designating a song (track), fast forward and rewind, playback from a middle position of the song, and the like. Thereby, the music data as the content data can be output from the speaker 91 connected to the car audio device 9, and the user can listen to the music.

  The mobile phone terminal 6 has a function of deleting content data from the terminal 6 after transferring the content data to the car audio device 9. In addition, according to a command from the mobile phone terminal 6 or when there is no operation command for a certain period of time by the timer function in the car audio device 9, there is a function of deleting music data in the device 9.

  In the present invention, the data output device that outputs the content data is not limited to the projector 7, the TV monitor 8, and the car audio 9, and humans recognize character data, still images, moving image data, music data, and the like. Any data output device capable of outputting as much as possible may be used. For example, an electronic device such as a printer, a hard disk player, or a portable audio player may be used. The terminal used for transferring the content data is not limited to the above-described mobile phone terminal 6, but has a network connection function to the Internet 4 or the like so that the content data can be acquired from the content distribution server 3, and the data Any electronic device that can be directly connected to the output device may be a PDA or a notebook computer.

  INDUSTRIAL APPLICABILITY The present invention can be used as a system that outputs data while suppressing information leakage at the time of presentation or during playback of a moving image or music content, and has industrial applicability.

It is a figure which shows the structure of the whole system of this invention. It is a functional block diagram which shows the structure of a content delivery server. It is a functional block diagram which shows the structure of a mobile telephone terminal. It is a functional block diagram which shows the structure of a projector. It is a figure which shows the example of data of the corresponding | compatible table memorize | stored in a projector. It is a figure which shows the example of a display of the display part of a mobile telephone terminal, and is the figure which displayed the list of the content data which can be provided to a mobile telephone terminal from a content delivery server. It is a figure which shows the example of a display of the display part of a mobile telephone terminal, and is a figure which displays the preview data of content data. It is a figure which shows the example of a display of the display part of a mobile telephone terminal, and is a figure which displays the example of a screen currently displayed with the projector. It is explanatory drawing which shows operation | movement of the whole system. It is a sequence diagram which shows operation | movement of the whole system, and shows operation | movement at the time of registering a content in a content delivery server. It is a sequence diagram which shows operation | movement of the whole system, and shows operation | movement when acquiring content data with a mobile telephone terminal from a content delivery server. FIG. 2 is a sequence diagram showing the operation of the entire system, showing content data transferred from a mobile phone terminal to a projector, and an operation when controlling the content data. It is a block diagram which shows the structure of the whole system in Example 2. FIG. FIG. 10 is a block diagram illustrating a configuration of the entire system in a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Registration terminal 2 Content conversion server 3 Content distribution server 4 Internet 5 Mobile phone data communication network 6 Mobile phone terminal 7 Projector 8 Television monitor 9 Car audio 31 Content registration processing unit 32 User authentication processing unit 33 Content distribution processing unit 34 Content data storage Unit 61 User authentication processing unit 62 Content acquisition processing unit 63 Content transfer processing unit 64 Control command transmission processing unit 65 Content deletion processing unit 66 Content storage unit 71 Content reception processing unit 72 Page control command reception processing unit 73 Monitoring processing unit 74 Deletion command Reception processing unit 75 Content storage unit 6C Mobile phone terminal operation unit 6D Mobile phone terminal display unit 7C Projection device

Claims (44)

A data output system comprising: a portable terminal connectable to a data server in which output target data is stored via a network; and a data output device capable of data communication with the portable terminal and outputting the output target data. And
The portable terminal includes data acquisition means for acquiring the output target data from the data server, and data transfer means for transferring the acquired output target data to the data output device,
Output target data storage processing means in which the data output device receives and stores the output target data transferred from the portable terminal, and an output target for performing predetermined processing including output processing of the stored output target data A data processing means,
A data output system characterized by that. The portable terminal includes data erasing means for erasing the acquired output target data after transferring it to the data output device,
The data output system according to claim 1. The portable terminal includes data processing command means for issuing a processing command for the output target data to the data output device,
The output target data processing means of the data output device performs the predetermined processing on the output target data stored in response to a processing command from the portable terminal.
The data output system according to claim 1 or 2, characterized by the above. The data processing command means of the portable terminal issues an output processing command for commanding output processing of the output target data,
The output target data processing means of the data output device performs output processing of the output target data in response to the output processing command.
The data output system according to claim 3. The data processing command means of the portable terminal issues a data erasure command for instructing to erase the output target data from within the data output device,
The output target data processing means of the data output device erases the stored output target data;
The data output system according to claim 3 or 4, wherein The data processing instruction means of the portable terminal issues the data erasure instruction when erasing data by the data erasure means according to claim 2.
6. The data output system according to claim 5, wherein: The output target data processing means of the data output device comprises output disable means for disabling the output processing of the output target data according to the input status of a processing command for the output target data.
7. The data output system according to claim 1, 2, 3, 4, 5, or 6. The output disable means operates when there is no processing command input for the output target data for a certain period of time.
8. The data output system according to claim 7, wherein: The output disable means erases the output target data stored in the data output device;
9. The data output system according to claim 7, wherein the data output system is a data output system. The mobile terminal is
After the acquired output target data is transferred to the data output device and when a command to end the output of the output target data by the data output device is input, the output target data is transferred from the portable terminal. Data erasing means for erasing;
An output processing command for instructing the data output device to output a specified portion by designating a part of the output target data, and the output target data in the data output device at the time of erasure by the data erasure means A data processing command means for issuing a processing command including a data erasing command for commanding to erase from,
The output target data processing means of the data output device outputs an output process for outputting a part of the output target data specified by the output processing command, and the output target data stored in response to the data erasure command Erasing process to erase,
The data output system according to claim 1. The output target data processing means of the data output device stops the output of the stored output target data or erases it from the data output device when there is no processing command for the output target data for a certain period of time. Equipped with means to disable data output,
The data output system according to claim 10. A portable terminal that is connectable to a data server in which output target data is stored via a network and is capable of data communication with a data output device that performs a predetermined process including a process of outputting the output target data,
Data acquisition means for acquiring the output target data from the data server; data transfer means for transferring the acquired output target data to the data output device;
A portable terminal characterized by comprising: Data erasing means for erasing the acquired output target data after transferring it to the data output device,
The mobile terminal according to claim 12. The data output device having a function of processing the output target data in response to a processing command from the portable terminal is provided with data processing command means for instructing processing contents of the output target data on the data output device. ,
The portable terminal according to claim 12 or 13, characterized in that The data processing command means issues an output processing command for commanding output processing of the output target data;
The mobile terminal according to claim 14. The data processing command means issues a data erasure command for commanding to erase the output target data from within the data output device;
The portable terminal according to claim 14 or 15, wherein The data processing instruction means issues the data erasure instruction when erasing data by the data erasure means according to claim 13.
The mobile terminal according to claim 16. After the acquired output target data is transferred to the data output device and when a command to end the output of the output target data by the data output device is input, the output target data is transferred from the portable terminal. Data erasing means for erasing;
An output processing command for instructing the data output device to output a specified portion by designating a part of the output target data, and the output target data in the data output device at the time of erasure by the data erasure means A data processing command means for issuing a processing command including a data erasing command for commanding to erase from,
The mobile terminal according to claim 12, further comprising: A portable terminal capable of data communication with a data output device that can be connected to a data server in which output target data is stored via a network and that performs a predetermined process including a process of outputting the output target data.
Data acquisition means for acquiring the output target data from the data server; data transfer means for transferring the acquired output target data to the data output device;
A program to realize Data erasing means for erasing the acquired output target data after transferring it to the data output device to the portable terminal;
The program of Claim 19 for implement | achieving. Instructing the portable terminal to process the output target data on the data output device to the data output device having a function of processing the output target data in response to a processing command from the portable terminal. Data processing command means,
The program of Claim 19 or 20 for implement | achieving. In the mobile terminal,
After the acquired output target data is transferred to the data output device and when a command to end the output of the output target data by the data output device is input, the output target data is transferred from the portable terminal. Data erasing means for erasing;
An output processing command for instructing the data output device to output a specified portion by designating a part of the output target data, and the output target data in the data output device at the time of erasure by the data erasure means A data processing command means for issuing a processing command including a data erasing command for commanding to erase from,
The program of Claim 19 for implement | achieving. A data output device capable of data communication with a portable terminal connectable to a data server in which output target data is stored via a network, and outputting the output target data,
Predetermined processing including output target data storage processing means for receiving and storing the output target data acquired by the portable terminal from the data server and transferred from the portable terminal, and output processing of the stored output target data Output target data processing means for performing
A data output device comprising: The output target data processing means receives a processing command for the output target data issued from the portable terminal, and performs the predetermined processing on the output target data stored according to the processing command.
24. A data output apparatus according to claim 23. The output target data processing means accepts an output processing command for instructing output processing of the output target data issued from the portable terminal, and performs output processing of the output target data according to the output processing command.
25. A data output apparatus according to claim 24. The output target data processing means accepts a data erasure command for instructing to erase the output target data from within the data output device issued from the portable terminal, and the output stored according to the data erasure command Delete the target data,
26. A data output device according to claim 24 or 25. The output target data processing means includes an output disable means for disabling output processing of the output target data according to an input status of a processing command for the output target data.
27. The data output device according to claim 23, 24, 25, or 26. The output disable means operates when there is no processing command input for the output target data for a certain period of time.
28. The data output device according to claim 27. The output disable means erases the output target data stored in the data output device;
29. A data output apparatus according to claim 27 or 28. The output target data processing means includes
The output target specified by the output processing command is received in response to an output processing command for specifying a part of the output target data issued from the portable terminal and instructing to output the specified portion. An output process for outputting a portion of the data;
Receives a data erasure command for erasing the output target data from the data output device issued when the output target data is erased from the portable terminal in the portable terminal, and stores it accordingly An erasing process for erasing the output target data being performed,
Run the
24. A data output apparatus according to claim 23. The output target data processing means is configured to stop outputting the stored output target data when there is no processing command for the output target data for a certain period of time, or to erase data from the data output device. With means,
31. A data output apparatus according to claim 30, wherein   32. The image output apparatus according to claim 23, further comprising: an output target data processing unit including an output process for outputting the output target data as an image. Data communication is possible with a portable terminal that can be connected to a data server in which output target data is stored via a network, and a data output device that outputs the output target data,
Output target data storage processing means for receiving the output target data acquired by the portable terminal from the data server and transferred from the portable terminal and storing the output target data in a storage device; and output processing of the stored output target data Output target data processing means for performing predetermined processing;
A program to realize   The output target data processing means receives a processing command for the output target data issued from the portable terminal, and performs the predetermined processing on the output target data stored in response to the processing command. The program according to claim 33.   35. The program according to claim 33, wherein the output target data processing means disables output processing of the output target data in accordance with an input state of a processing command for the output target data. The output target data processing means includes
The output target specified by the output processing command is received in response to an output processing command for specifying a part of the output target data issued from the portable terminal and instructing to output the specified portion. An output process for outputting a portion of the data;
Receives a data erasure command for erasing the output target data from the data output device issued when the output target data is erased from the portable terminal in the portable terminal, and stores it accordingly An erasing process for erasing the output target data being performed,
Run the
34. The program according to claim 33. The output target data processing means stops the output of the stored output target data when there is no processing command for the output target data for a certain period of time, or erases it from the data output device,
37. The program according to claim 36. Data that includes a mobile terminal that can be connected to a data server in which output target data is stored via a network, and a data output device that can perform data communication with the mobile terminal, and that outputs the output target data from the data output device Output method,
The portable terminal acquires the output target data from the data server, and transfers the acquired output target data to the data output device;
The data output device receives and stores the output target data transferred from the portable terminal, and performs predetermined processing including output processing of the stored output target data.
A data output method characterized by the above. The portable terminal deletes the acquired output target data after transferring it to the data output device,
The data output method according to claim 38, wherein: After the portable terminal transfers the output target data, it issues a processing command for the output target data to the data output device,
The data output device receives and stores the output target data transferred from the portable terminal, then receives a processing command issued from the portable terminal, and stores the output target stored according to the processing command Performing the predetermined processing on the data;
40. A data output method according to claim 38 or 39. When the portable terminal erases the output target data in the portable terminal, it issues a command to erase the output target data to the data output device.
41. A data output method according to claim 40. After the data output device receives and stores the output target data transferred from the portable terminal, it monitors the input status of the processing command for the output target data, and outputs the output target data according to the monitoring status Disable processing,
42. A data output method according to claim 38, 39, 40 or 41. After the portable terminal transfers the acquired output target data to the data output device, an output process that instructs the data output device to specify a part of the output target data and output the specified part In response to this, the data output device outputs a part of the output target data designated by the output processing command,
After the portable terminal transfers the acquired output target data to the data output device, the output target data is input when a command to end the output of the output target data by the data output device is input. Is erased from the portable terminal, and a data erasure command is issued to instruct the data output device to erase the output target data from within the data output device, and the data output device is stored accordingly. Delete the output target data,
The data output method according to claim 38, wherein: After the data output device receives and stores the output target data transferred from the portable terminal, if there is no processing command for the output target data for a certain period of time, the stored output target data is output. Or erase from within the data output device,
44. A data output method according to claim 43.

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