JP2014192726A - System, method and program for data relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the transmission and the reception of image data between a FAX transceiver, incompatible with a data format other than a predetermined data format (for example, TIFF format), and a communication device compatible with a data format other than the predetermined data format.SOLUTION: A data relay system for relaying image data transmission and reception between a transmission-side device and a reception-side device includes: determination unit for determining whether the reception-side device can receive a first image format or a second image format; according to the determination result, a converter unit for converting image data transmitted from the transmission-side device with a first image format into a second image format; and a transmitter unit for transmitting the image data with an image format receivable by the reception-side device.

Description

  The present invention relates to a data relay technique for relaying transmission / reception of image data between a transmission side device and a reception side device.

  Conventionally, a data communication service called data connect using an IP telephone line is known. In SIP (Session Initiation Protocol), which is an IP telephone line protocol, three types of media including audio (m = audio), video (m = video), and data (m = application) are allowed. In general, Data Connect provides bandwidth-reserved data communication by using a media stream of data (m = application) in a telephone session.

NTT East / West, "Data Connect", [online], [March 22, 2013 search], data communication using telephone numbers, Internet <URL: http://ascii.jp/elem/000/000/525/525251 />

  However, in order to transmit and receive FAX image data using Data Connect, the terminal device that transmits and receives data needs to be a model that supports Data Connect. In Data Connect, image data is transmitted and received in JPEG format (Joint Photographic Experts Group) and PDF format (Portable Document Format), not in TIFF format (Tagged Image File Format) generally used for FAX communication (analog). Because. For this reason, a FAX transmitter / receiver that does not support data connect cannot transmit / receive image data to / from a communication device that supports data connect. Such a problem is not a problem specific to Data Connect, but is a problem common to all FAX transceivers that cannot transmit and receive FAX image data in a data format other than a predetermined data format (for example, TIFF format).

  In view of the above circumstances, the present invention provides a communication between a FAX transceiver that does not support a data format other than a predetermined data format (for example, TIFF format) and a communication device that supports a data format other than the predetermined data format. It is an object of the present invention to provide a data relay system, a data relay method, and a data relay program that can transmit and receive image data.

  One aspect of the present invention is a data relay system that relays transmission / reception of image data between a transmission-side device and a reception-side device, wherein the reception-side device has a first image format and a second image format. A determination unit that determines which is receivable, a conversion unit that converts image data transmitted from the transmission-side device in the first image format according to the determination result, to the second image format, and the reception A transmission unit that transmits the image data in an image format receivable by the side device.

  One embodiment of the present invention is a data relay method for relaying transmission / reception of image data between a transmission side device and a reception side device, wherein the reception side device has a first image format and a second image format. A determination step for determining which of the image data can be received, and a conversion step for converting the image data transmitted in the first image format from the transmission-side device into the second image format according to the determination result; Transmitting the image data in an image format receivable by the receiving device.

  Another embodiment of the present invention is a data relay program for causing a computer to function as a data relay device that relays transmission / reception of image data between a transmission side device and a reception side device. A determination step for determining whether the device can receive the first image format or the second image format, and depending on the determination result, the image data transmitted from the transmission-side device in the first image format. A data relay program for executing a conversion step of converting to a second image format, and a transmission step of transmitting the image data in an image format receivable by the receiving device.

  According to the present invention, image data is transmitted between a FAX transceiver that does not support a data format other than a predetermined data format (for example, TIFF format) and a communication device that supports a data format other than the predetermined data format. Transmission and reception are possible.

It is a figure which shows the structure of a FAX transmission / reception system. It is a flowchart which shows the flow of operation | movement of a FAX transmission / reception system. It is a sequence diagram which shows the flow of a process of a FAX transmission / reception system. It is a figure which shows the structure of a FAX transmission / reception system. It is a flowchart which shows the flow of operation | movement of a FAX transmission / reception system.

  FIG. 1 is a diagram illustrating a configuration of a FAX transmission / reception system 500 according to the present embodiment. The FAX transmission / reception system 500 includes a sender terminal device 100, a FAX server 200, a receiver terminal device 300a, and a receiver terminal device 300b. The sender terminal device 100 and the FAX server 200 are connected by an analog line. The FAX server 200 and the recipient terminal device 300a are connected by NGN (Next Generation Network). The FAX server 200 and the recipient terminal device 300b are connected by an analog line. The FAX transmission / reception system 500 transmits FAX image data to the receiver terminal device 300a or the receiver terminal device 300b via the FAX server 200 in response to an instruction from the transmitter input to the transmitter terminal device 100.

  The sender terminal device 100 is a FAX transceiver that does not support data formats other than a predetermined data format. The recipient terminal device 300a is a FAX transceiver that supports data formats other than the predetermined data format. The recipient terminal device 300b is a FAX transceiver that does not support data formats other than the predetermined data format. In the present embodiment, an example of the predetermined data format is a TIFF format.

  The FAX server 200 includes a communication unit 210, an image storage unit 220, a determination unit 230, an image conversion unit 240, a control unit 250, and an A / D conversion unit 260. The communication unit 210 is an interface responsible for data communication with various devices. The image storage unit 220 temporarily stores FAX image data transmitted from the sender terminal device 100. The determination unit 230 determines whether or not the recipient terminal device 300a and the recipient terminal device 300b can receive a data format (JPEG format, PDF format, etc.) other than the TIFF format. Hereinafter, the JPEG format will be described as an example of a data format other than the TIFF format. The image conversion unit 240 converts the FAX image data transmitted in the TIFF format from the sender terminal device 100 into JPEG format FAX image data. The control unit 250 supervises the overall operation of the FAX server 200. The A / D conversion unit 260 performs analog / digital signal conversion.

  FIG. 2 is a flowchart showing an operation flow of the FAX transmission / reception system 500. The operation flow of the FAX transmission / reception system 500 will be described with reference to the flowchart of FIG. In the FAX transmission / reception system 500, the sender terminal device 100 transmits FAX image data to the receiver terminal device 300a or the receiver terminal device 300b.

  First, the sender terminal device 100 transmits the telephone number of the recipient terminal device 300a or the recipient terminal device 300b (hereinafter simply referred to as “destination”) to the FAX server 200 in accordance with an instruction from the sender. (S11). Next, the sender terminal device 100 transmits FAX image data in TIFF format to the FAX server 200 (S12). Next, the image storage unit 220 of the FAX server 200 stores the transmitted FAX image data in the TIFF format (S13).

  Next, the determination unit 230 of the FAX server 200 determines whether or not the transmission destination can receive FAX image data in JPEG format (S14). For example, the determination unit 230 may make the determination based on the type of line with the transmission destination, or may determine by communicating with the transmission destination. In this example, the recipient terminal device 300a can receive FAX image data in JPEG format, and the recipient terminal device 300b cannot receive FAX image data in JPEG format. As a result of the determination, if the destination is capable of receiving JPEG format FAX image data, the image conversion unit 240 of the FAX server 200 converts the TIFF format FAX image data stored in the image storage unit 220 into a JPEG format FAX image. Data is converted (S15). On the other hand, if the transmission destination cannot receive the JPEG format, the process directly proceeds to S16. Next, the communication unit 210 of the FAX server 200 transmits FAX image data in a data format that can be received by the transmission destination (S16).

  FIG. 3 is a sequence diagram illustrating a processing flow of the FAX transmission / reception system 500. The sender terminal device 100 transmits a destination telephone number (the telephone number of the recipient terminal device 300a or the recipient terminal device 300b) to the FAX server 200. Next, the sender terminal device 100 transmits FAX image data in TIFF format to the FAX server 200. Next, the FAX server 200 inquires of the receivable data format to the transmission destination. In response to the inquiry, the transmission destination answers its own receivable data format. Next, the FAX server 200 transmits FAX image data in a receivable data format to the transmission destination.

  In this way, image data is transmitted and received between a FAX transceiver that does not support a data format other than a predetermined data format (for example, TIFF format) and a communication device that supports a data format other than the predetermined data format. Is possible.

  FIG. 4 is a diagram showing a configuration of a FAX transmission / reception system 1000 according to the present embodiment. The FAX transmission / reception system 1000 includes a sender terminal device 600, a FAX server 700, a receiver terminal device 800a, and a receiver terminal device 800b. The sender terminal device 600 and the FAX server 700 are connected by NGN. The FAX server 700 and the recipient terminal device 800a are connected by NGN. The FAX server 700 and the recipient terminal device 800b are connected by an analog line. The FAX transmission / reception system 1000 transmits FAX image data to the receiver terminal device 800a or the receiver terminal device 800b via the FAX server 700 in response to an instruction from the transmitter input to the transmitter terminal device 600.

  The sender terminal device 600 is a FAX transceiver that supports data formats other than a predetermined data format. The recipient terminal device 800a is a FAX transceiver that supports data formats other than the predetermined data format. The recipient terminal device 800b is a FAX transceiver that does not support data formats other than the predetermined data format. In the present embodiment, an example of the predetermined data format is a TIFF format.

  The FAX server 700 includes a communication unit 710, an image storage unit 720, a determination unit 730, an image conversion unit 740, a control unit 750, and an A / D conversion unit 760. The communication unit 710 is an interface responsible for data communication with various devices. The image storage unit 720 temporarily stores FAX image data transmitted from the sender terminal device 600. The determination unit 730 determines whether the recipient terminal device 800a and the recipient terminal device 800b can receive a data format other than the TIFF format (JPEG format, PDF format, or the like). Hereinafter, the JPEG format will be described as an example of a data format other than the TIFF format. The image conversion unit 740 converts FAX image data transmitted from the sender terminal device 600 in JPEG format into FAX image data in TIFF format. The control unit 750 controls the overall operation of the FAX server 700. The A / D converter 760 performs analog / digital signal conversion.

  FIG. 5 is a flowchart showing an operation flow of the FAX transmission / reception system 1000. The operation flow of the FAX transmission / reception system 1000 will be described with reference to the flowchart of FIG. In the FAX transmission / reception system 1000, the sender terminal device 600 transmits FAX image data to the receiver terminal device 800a or the receiver terminal device 800b.

  First, the sender terminal device 600 transmits the telephone number of the recipient terminal device 800a or the recipient terminal device 800b (hereinafter simply referred to as “destination”) to the FAX server 700 in accordance with an instruction from the sender. (S31). Next, the sender terminal device 600 transmits JPEG format FAX image data to the FAX server 700 (S32). Next, the image storage unit 720 of the FAX server 700 stores the transmitted JPEG format FAX image data (S33).

  Next, the determination unit 730 of the FAX server 700 determines whether or not the transmission destination can receive the JPEG format (S34). For example, the determination unit 730 may determine based on the type of line with the transmission destination, or may determine by communicating with the transmission destination. In this example, if the transmission destination is the recipient terminal device 800a, the JPEG format can be received, and if the transmission destination is the recipient terminal device 800b, the JPEG format cannot be received. As a result of the determination, if the transmission destination cannot receive the JPEG format, the image conversion unit 740 of the FAX server 700 converts the JPEG format FAX image data stored in the image storage unit 720 into the TIFF format FAX image data. (S35). On the other hand, if the transmission destination can receive the JPEG format, the process directly proceeds to S36. Next, the communication unit 710 of the FAX server 700 transmits the FAX image data in a data format that can be received by the transmission destination (S36).

In this manner, image data can be transmitted and received between a FAX transceiver that does not support a data format other than the predetermined data format and a communication device that supports a data format other than the predetermined data format. .
The contents of the present invention can also be realized as a data relay program. In the above, a FAX transmitter / receiver has been exemplified as a communication device compatible with a data format other than the TIFF format. However, a communication device to which the present invention can be applied is not limited to a FAX transmitter / receiver, and various computers, telephones, Any communication device such as a smartphone or a mobile terminal may be used.

  In this specification, the FAX server 200 includes a communication unit 210, an image storage unit 220, a determination unit 230, an image conversion unit 240, a control unit 250, and an A / D conversion unit 260 as a single device. In the data relay system of the present invention, each of the functional units may be implemented across a plurality of devices. When implemented over a plurality of devices, the data relay system is implemented as a single information processing device by cooperation of the devices. The same applies to the FAX server 700.

  Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to the present embodiment, and includes a design and the like within a scope not departing from the gist of the present invention. Needless to say, the above-described embodiment and a plurality of modifications can be combined within a range in which the contents do not conflict with each other. In the above-described embodiments and modifications, the structure of each part has been specifically described. However, the structure and the like can be changed in various ways within the scope of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Sender terminal device, 200 ... FAX server, 300a ... Receiver terminal device, 300b ... Receiver terminal device, 500 ... FAX transmission / reception system, 600 ... Sender terminal device, 700 ... FAX server, 800a ... Receiver terminal device , 800b ... recipient terminal device, 1000 ... FAX transmission / reception system

Claims (3)

A data relay system for relaying transmission / reception of image data between a transmission side device and a reception side device,
A determination unit that determines which of the first image format and the second image format can be received by the reception-side apparatus;
According to the determination result, a conversion unit that converts the image data transmitted from the transmission-side device in the first image format into the second image format;
A data relay system comprising: a transmission unit configured to transmit the image data in an image format receivable by the reception side device. A data relay method for relaying transmission / reception of image data between a transmission side device and a reception side device,
A determination step of determining whether the receiving device can receive a first image format or a second image format;
In accordance with the determination result, a conversion step of converting the image data transmitted from the transmission side device in the first image format into the second image format,
A data relay method comprising: a transmission step of transmitting the image data in an image format receivable by the receiving side device. A data relay program for causing a computer to function as a data relay device that relays transmission / reception of image data between a transmission side device and a reception side device,
On the computer,
A determination step of determining whether the receiving device can receive a first image format or a second image format;
In accordance with the determination result, a conversion step of converting the image data transmitted from the transmission side device in the first image format into the second image format,
A data relay program for executing the transmission step of transmitting the image data in an image format receivable by the receiving side apparatus.