JP2012222716A - Data communication terminal and control method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data communication terminal for receiving image data transmitted from a data transmission device and transferring it to an image data output device.SOLUTION: The data communication terminal 11 includes: a reception section 12 receiving the image data transmitted from the data transmission device such as a portable telephone and a PC; a connector 13 which can electrically be connected to a display device 16; and a controller 14 transferring the image data received by the reception section 12 to the display device 16 via the connector 13.

Description

  The present invention relates to a data communication terminal and a control method thereof.

  In recent years, digital photo frames having a mobile communication function have been sold. This digital photo frame having a mobile communication function can receive image data transmitted wirelessly from a mobile phone or a PC and display it on a display screen.

  Related techniques are disclosed in Patent Document 1 and Patent Document 2.

  The digital photo frame disclosed in Patent Document 1 includes a data input means for taking in digital photo data from the outside, a flat display for displaying the digital photo data as a color photo, a storage means for storing the digital photo data, and these Each case contains a housing that functions as a photo frame, and various operation buttons provided on the housing.

  The image communication apparatus disclosed in Patent Document 2 includes an image communication apparatus main body and an image display apparatus. The image communication apparatus main body includes image data receiving means for receiving image data via a communication line, image data extracting means for extracting specific image data from received image data according to a predetermined condition, and the extracted image Image data transfer means for transferring data. The image display device includes: image data holding means for holding image data transferred from the image communication apparatus main body; display means for expanding and displaying the image data held by the image data holding means; and the image communication apparatus main body. An independent housing. Here, the appearance of the main body of the image communication apparatus is the same as that of a general facsimile apparatus, and the appearance of the image display apparatus is a display-only device designed in a so-called photo frame shape. That is, this image display apparatus is considered to have a mobile communication function.

JP 2003-169734 A JP 2002-094729 A

  Incidentally, digital photo frames (image data output devices) that do not have a mobile communication function are already on the market. However, a digital photo frame that does not have a mobile communication function has a problem that it cannot receive image data transmitted from a data transmission device such as a mobile phone or a PC and display it on a display screen.

  In addition, even if the user is interested in a digital photo frame having a mobile communication terminal, if a digital photo frame that does not have a mobile communication function has already been purchased, the user can give up the purchase for reasons such as high costs. High nature.

  As described above, an image data output device that does not have a mobile communication function has a problem that it cannot receive image data transmitted from a data transmission device such as a mobile phone or a PC and display it on a display screen.

  The present invention has been made to solve such a problem, and provides a data communication terminal capable of receiving image data transmitted from a data transmission device and transferring it to an image data output device. With the goal.

  A data communication terminal according to the present invention includes a receiving unit that receives image data transmitted from a data transmitting device, a connector that is electrically connectable to an image data output device, and the image data received by the receiving unit. A control unit that transfers the image data to the image data output device via a connector.

  In addition, the control method of the data communication terminal according to the present invention receives the image data transmitted from the data transmission device, and the image data via a connector that can be electrically connected to the image data output device. Transfer to output device.

  According to the present invention, it is possible to provide a data communication terminal capable of receiving image data transmitted from a data transmission device and transferring it to an image data output device. By using this data communication terminal, even if the image data output device does not have a mobile communication function, the image data transmitted from the data transmission device can be displayed on the display screen.

1 is a block diagram showing a communication system according to a first exemplary embodiment of the present invention. 1 is a block diagram showing a communication system according to a first exemplary embodiment of the present invention. It is a flowchart which shows operation | movement of the communication system concerning Embodiment 1 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Since the drawings are simplified, the technical scope of the present invention should not be interpreted narrowly based on the description of the drawings. Moreover, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted.

Embodiment 1
FIG. 1 is a block diagram of a communication system including a data communication terminal according to the first exemplary embodiment of the present invention. The data communication terminal according to the present embodiment is characterized in that it can receive image data transmitted wirelessly from a data transmission device such as a mobile phone or a PC and transfer it to a display device (image data output device). . Accordingly, even a display device that does not have a mobile communication function can display image data transmitted from the data transmission device wirelessly on the display screen. This will be specifically described below.

  The communication system shown in FIG. 1 includes a display device 16 and a data communication terminal 11. The display device 16 is, for example, a display-only device designed in the shape of a photo frame, that is, a digital photo frame. The data communication terminal 11 is, for example, a USB (Universal Serial Bus) memory type terminal that can be electrically connected to the display device 16 via a connector.

  The display device 16 includes a display unit 19, a main body memory 18, and a connector 17. The data communication terminal 11 includes a receiving unit 12, a connector 13, and a controller (control unit) 14.

  In the data communication terminal 11, the receiving unit 12 is a unit that receives image data transmitted wirelessly from a data transmission device (not shown in FIG. 1) such as a mobile phone or a PC. The data communication terminal 11 is assigned unique identification information such as a mail address, and the receiving unit 12 receives, for example, image data transmitted from the data transmission device to the identification information via the server.

  The connector 13 on the data communication terminal 11 side is a terminal that can be electrically connected to the display device 16, for example, a male terminal that can be connected to a device compliant with the USB standard. On the other hand, the connector 17 on the display device 16 side is a female terminal corresponding to the connector 13 on the data communication terminal 11 side. The data communication terminal 11 transfers image data to the display device 16 or receives power from the display device 16 via the connector 13. On the other hand, the display device 16 receives image data from the data communication terminal 11 or supplies power to the data communication terminal 11 via the connector 17.

  The controller 14 gives an instruction to each operation of the data communication terminal 11 according to a predetermined program. For example, the controller 14 performs a process of transferring the image data received by the receiving unit 12 to the display device 16 via the connector 13.

  In the display device 16, the main body memory 18 is a circuit that stores image data transferred from the data communication terminal 11 via the connector 17.

  The display unit 19 is a unit that displays the image data stored in the main body memory 18. The display unit 19 is disposed, for example, on the front surface of the display device 16 and displays the image data according to a preset setting. The display unit 19 is formed of black and white or color liquid crystal, organic EL, or the like.

  FIG. 2 is a diagram more specifically showing the communication system shown in FIG. In the communication system shown in FIG. 2, the data communication terminal 11 further includes a flash memory 15. Further, in FIG. 2, the external memory 20 is electrically connected to the display device 16. The external memory 20 is a storage medium such as a USB memory or an SD card, for example.

  In the data communication terminal 11, the flash memory 15 stores image data received by the receiving unit 12, and stores data necessary for program execution.

  When the external memory 20 is electrically connected to the display device 16, the data communication terminal 11 can transfer image data to either the main body memory 18 or the external memory 20. At this time, the display device 16 can cause the display unit 19 to display image data stored in the external memory 20 in addition to the main body memory 18.

  Next, the operation of the communication system shown in FIG. 2 will be described using the flowchart of FIG. FIG. 3 is a flowchart showing an operation when the data communication terminal 11 transfers image data to the display device 16.

  When the data communication terminal 11 is in a standby state (step S20), the data communication terminal 11 performs a search as to whether or not the data communication terminal 11 is in a mobile communication range (step S21). The “standby state” refers to a state in which the data communication terminal 11 and the display device 16 are electrically connected to supply necessary power to the data communication terminal 11 from the display device 16. It is.

  If the search execution result is out of service area (NO in step S21), the process returns to the standby state (step S20), and after a predetermined period of time, a search is performed again as to whether or not the mobile communication area is present.

  If the search execution result is within the range (YES in step S21), the data communication terminal 11 makes an inquiry to the server and checks whether there is unreceived image data (step S22). If there is no unreceived image data as a result of the inquiry (NO in step S22), the process returns to the standby state (step S20), and after a predetermined period of time has passed, a search is performed again to determine whether or not the mobile communication area is present.

  If there is unreceived image data (YES in step S22), the data communication terminal 11 receives the image data (step S23). If reception fails (NO in step S23), the process returns to the standby state (step S20), and after a predetermined period of time has passed, a search is performed again to determine whether or not the mobile communication area is present.

  If the reception is successful (YES in step S23), the data communication terminal 11 then determines whether the external memory 20 is inserted (electrically connected) to the display device 16 and the external memory 20 It is confirmed whether there is free space (step S24). When the external memory 20 is inserted and the external memory 20 has a free space (YES in step S24), the data communication terminal 11 transfers the image data to the external memory 20. The transferred image data is stored in the external memory 20 (step S28). When the storage is completed (step S30), the image data is returned to the standby state (step S20). From the search.

  If there is no free space in the external memory 20 (NO in step S24), the data communication terminal 11 checks whether there is free space in the main body memory 18 (step S25). If the main memory 18 has a free space (YES in step S25), the data communication terminal 11 transfers the image data to the main memory 18. The transferred image data is stored in the main body memory 18 (step S29). When the storage is completed (step S30), the image data is returned to the standby state (step S20). From the search.

  If there is no free space in the main body memory 18 (NO in step S25), the display device 16 cannot store any more image data. Therefore, the data communication terminal 11 temporarily shifts to the sleep state with the image data stored in the flash memory 15 (step S26). The “sleep state” is a state in which image data is not transferred regardless of whether the main memory 18 and the external memory 20 of the display device 16 have free space.

  This sleep state is continued until the display device 16 is operated by the user (NO in step S27). When the display device 16 is operated by the user (YES in step S27), the data communication terminal 11 starts again after confirming whether the external memory 20 has free space.

  Through such an operation, image data is transferred from the data communication terminal 11 to the display device 16.

  As described above, the data communication terminal according to the embodiment described above can receive image data transmitted wirelessly from the data transmission device and transfer it to the display device. As a result, even if the display device does not have a mobile communication function, the image data transmitted from the data transmission device can be displayed on the display screen.

  Up to now, it has been possible to display only image data (a display device having a mobile communication function) designated by a telecommunications carrier on a display screen by wireless transmission from a data transmission device. However, according to the present invention, a display device that can be electrically connected to a data communication terminal, for example, a display device that complies with the USB standard, can achieve the same effect. Therefore, the communication carrier can expand the line opening target to users who have display devices other than the display device having the mobile communication function.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. In the above-described embodiment, the case where the connector 13 of the data communication terminal 11 is a terminal that can be connected to a device that conforms to the USB standard has been described as an example. Possible terminals may be used.

  In the above embodiment, the case where the transfer destination of the image data by the data communication terminal 11 is the display device 16 such as a digital photo frame is described as an example, but the present invention is not limited to this. The transfer destination of the image data by the data communication terminal may be an image data output device including a digital printer and a television in addition to the display device 16.

  In the flowchart of FIG. 2, the case where image data is preferentially stored in the free space of the external memory 20 out of the external memory 20 and the main body memory 18 has been described as an example, but the present invention is not limited thereto. It is possible to appropriately change to a configuration in which image data is preferentially stored in the free space of the main body memory 18. Further, when the external memory 20 is not electrically connected to the display device 16, the corresponding flow is omitted.

  In addition, when the data communication terminal 11 cannot transfer image data because the main body memory 18 and the external memory 20 of the display device 16 have no free space, the data communication terminal 11 notifies the sender or a predetermined address by e-mail to that effect. It can change suitably to the composition provided with.

  In addition, as described above, unique identification information such as a mail address is allocated to the data communication terminal 11. At this time, if a SIM card (Subscriber Identity Module Card) is essential, the data communication terminal 11 It is necessary to form the SIM card into a shape that can be inserted.

DESCRIPTION OF SYMBOLS 11 Data communication terminal 12 Reception part 13 Connector 14 Controller 15 Flash memory 16 Display apparatus 17 Connector 18 Main body memory 19 Display part 20 External memory

Claims (9)

A receiving unit for receiving image data transmitted from the data transmitting device;
A connector electrically connectable to the image data output device;
A data communication terminal comprising: a control unit that transfers the image data received by the receiving unit to the image data output device via the connector.   The data communication terminal according to claim 1, further comprising a memory for storing the image data. The controller is
3. The data communication terminal according to claim 1, wherein when the image data output device has a storage area for storing the image data, the image data is transferred to the image data output device. The controller is
The data communication terminal according to claim 3, wherein when there is no storage area for storing the image data in the image data output device, the data communication terminal enters a sleep state.   The data communication terminal according to claim 4, further comprising: a transmission unit that notifies a predetermined address when there is no storage area for storing the image data in the image data output device. The controller is
The image data is transferred to the external memory when there is a storage area for storing the image data in an external memory added to the image data output device. The data communication terminal according to item. The controller is
7. The data communication terminal according to claim 6, wherein when there is no storage area for storing the image data in the external memory and the image data output device, the data communication terminal enters a sleep state.   8. The data communication terminal according to claim 7, further comprising: a transmission unit that notifies a predetermined address when there is no storage area for storing the image data in the external memory and the image data output device. Receive image data sent from the data sending device,
A method for controlling a data communication terminal, wherein the image data is transferred to the image data output device via a connector electrically connectable to the image data output device.

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