JP2005109684A - Image data transmission system, image data transmission method, and mobile terminal equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image data transmission system, an image data transmission method, and mobile terminal equipment whereby even after the mobile terminal equipment transmits its image data to a server and deletes the data in order to save a storage capacity of its storage section, the mobile terminal equipment can display contents of the image data on its own display section while saving the storage capacity. <P>SOLUTION: The mobile terminal equipment 2 includes: the storage section 22 for storing initial image data or / and low resolution image data of the initial image data; a communication section 26 for transmitting the initial image data stored in the storage section to the server; and an image processing section 24 for generating the low resolution image data to the initial image data when the communication section transmits the initial image data in the storage section to the server, storing the low resolution image data to the storage section and deleting the initial image data, and the server 8 includes a storage section 14 for storing the initial image data received from the mobile terminal equipment. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an image data transmission system, an image data transmission method, and a mobile terminal device including a mobile terminal device and a server.

  2. Description of the Related Art Conventionally, there has been a data transmission system in which when a call arrives at a mobile terminal device such as a mobile phone, the content of the call is transferred to a communication network server and stored (for example, Patent Document 1).

  On the other hand, some portable terminal devices can transmit and receive image data. And in the data transmission system like the said patent document 1, when a portable terminal device receives image data from another terminal device by transmitting image data to a server instead of the contents of a call, this There has been an image data transmission system in which image data can be transferred to a server and stored.

  Further, in such an image data transmission system, not only when the image data is received, but when the mobile terminal device has an imaging function, the captured image data is transmitted to the server and stored. It was also possible to keep it.

By constructing such an image data transmission system, the mobile terminal device can transmit and store received image data and captured image data to a server of a communication network, and stores these image data after transmission. It is possible to save the storage capacity by deleting from the storage unit.
JP 2001-127878 A

  However, in such an image data transmission system, since the mobile terminal device transmits image data to the server and then deletes the image data from the storage unit to save the storage capacity of the storage unit, There has been a problem that the erased image data cannot be displayed on the display unit of the own device.

  Therefore, in view of the above problems, the present invention saves the storage capacity even after the portable terminal device transmits image data to the server and deletes it in order to save the storage capacity of the storage unit. It is an object of the present invention to provide an image data transmission system, an image data transmission method, and a portable terminal device that can display the content of the image data on the display unit of the own device.

In order to solve the above problems, the present invention
An image data transmission system comprising a mobile terminal device and a server,
The portable terminal device includes a storage unit that stores initial image data or / and low-resolution image data corresponding to the initial image data, and a communication unit that transmits the initial image data stored in the storage unit to the server. When the initial image data stored in the storage unit is transmitted to the server by the communication unit, low resolution image data corresponding to the initial image data is generated, and the low resolution image data is stored in the storage unit and the initial image An image processing unit for erasing data,
The server includes a storage unit that stores initial image data received from the mobile terminal device.

  In the image data transmission system according to the present invention, the mobile terminal device requests the server to transmit initial image data corresponding to the low-resolution image data stored in the storage unit and receives the initial image data. Is characterized in that the low-resolution image data is erased from the storage unit.

  The image data transmission system according to the present invention is configured such that when the server transmits the initial image data stored in the storage unit to the mobile terminal device based on a request from the mobile terminal device, the initial image data Is deleted from the storage unit.

The present invention also provides:
Between a portable terminal device having a storage unit that stores initial image data or / and low-resolution image data corresponding to the image data, and a server having a storage unit that stores initial image data received from the portable terminal device An image data transmission method,
The portable terminal device generates the low resolution image data corresponding to the initial image data after transmitting the initial image data stored in the storage unit to the server and storing the initial image data in the storage unit. The image data is stored in the storage unit and the initial image data is erased.

The portable terminal device according to the present invention is
A storage unit for storing initial image data or / and low resolution image data corresponding to the initial image data;
A display unit for displaying initial image data or / and low-resolution image data;
A communication unit that transmits initial image data stored in the storage unit to a server of a communication network;
When the initial image data stored in the storage unit is transmitted to the server by the communication unit, low resolution image data corresponding to the initial image data is generated, and the low resolution image data is stored in the storage unit And an image processing unit for deleting the initial image data.

The portable terminal device according to the present invention is
When initial image data is stored in the storage unit and low resolution image data corresponding to the initial image data is not stored, a thumbnail image generated from the initial image data is displayed on the display unit. ,
When low-resolution image data corresponding to the initial image data is stored regardless of whether or not the initial image data is stored in the storage unit, the low-resolution image data is stored as a thumbnail image in the display unit. It is characterized by being displayed.

  In addition, when a predetermined operation is performed while the low-resolution image data is displayed on the display unit, the mobile terminal device according to the present invention receives initial image data corresponding to the low-resolution image data from the server. The information is received and stored in the storage unit.

  The portable terminal device according to the present invention is characterized in that when the initial image data is received from the server, the low-resolution image data is erased.

The present invention also provides:
A server that transmits and receives image data to and from a mobile terminal device,
A storage unit for storing image data received from the mobile terminal device;
When image data stored in the storage unit is transmitted to the mobile terminal device based on a request from the mobile terminal device, the image data is deleted from the storage unit.

  According to the image data transmission system, the image data transmission method, and the mobile terminal device of the present invention, the mobile terminal device transmits image data to the server and deletes it in order to save the storage capacity of the storage unit. Even later, the contents of the image data can be displayed on the display unit of the own device while saving the storage capacity.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. 1 to 5 are diagrams to be referred to for describing an image data transmission system, an image data transmission method, and a portable terminal device according to an embodiment of the present invention.

  As shown in FIG. 1, a mobile phone 2 with an imaging function (corresponding to a mobile terminal device) can communicate with a server 8 of a communication network 6 via a wireless base station 4.

  The server 8 includes a communication unit 10, a data processing unit 12, a storage unit 14, and a control unit 16 that controls them. The server 8 is configured such that the communication unit 10 communicates under the control of the control unit 16 in response to a request from the mobile phone 2 with an imaging function. Is transmitted, the image data is stored in the storage unit 14.

  Further, when the server 8 receives the image data transmission request signal from the imaging function mobile phone 2, the server 8 detects the corresponding data from the various data stored in the storage unit 14, and Is transmitted to the mobile phone 2 with an imaging function.

  Next, as shown in FIG. 2, the cellular phone 2 with an imaging function includes a camera unit 18 (imaging unit), a display unit 20, a storage unit 22, an image processing unit 24, a communication unit 26, an operation unit 28, and these. The control part 30 to control is provided.

  Such a cellular phone 2 with an imaging function can display the image data captured by the camera unit 18 on the display unit 20, and adjusts the resolution of the image data when shooting. Be able to. Further, the image data photographed by the camera unit 18 can be stored in the storage unit 22, and the stored image data can be read again and displayed on the display unit 20.

  In addition, the communication unit 26 can transmit and receive image data as well as call communications. The image data received from the communication unit 26 is stored in the same manner as the image data captured by the camera unit 18. The stored image data can be read out and displayed on the display unit 20.

  Although not shown, the display unit 20 can display image data one by one on almost the entire display surface. Further, as will be described later, thumbnail images reduced for the sample can be displayed so that the image data can be browsed at once.

  The storage unit 22 can store low-resolution image data, which will be described later, in addition to image data captured by the camera unit 18 and image data received by the communication unit 26. And the memory | storage part 22 can memorize | store simultaneously both the image | photographed image data and the received image data, and the low resolution image data corresponding to these image data.

  In the following description, the cellular phone 2 with an imaging function does not seem to be subjected to image processing or editing processing at all, like image data taken by the camera unit 18 or image data received by the communication unit 26. Such image data is referred to as initial image data.

  When the initial image data is stored in the storage unit 22, the image processing unit 24 can generate low-resolution image data having a predetermined resolution from the initial image data based on an instruction from the control unit 30. It is like that.

  Since the image data is unclear and the amount of data is smaller as the resolution is lower, if the original initial image data is higher than the predetermined resolution of the low-resolution image data, the low-resolution image data generated from this initial image data Is unclear and less data than the original initial image data.

  In addition, when the resolution of the original initial image data is equal to or lower than the predetermined resolution of the low resolution image data, the image processing unit 24 may generate the low resolution image data with a resolution higher than the resolution of the initial image data. Therefore, the low-resolution image data has the same sharpness as the original initial image data and the data amount is almost the same.

  Further, the image processing unit 24 can store or delete the initial image data and the low-resolution image data in the storage unit 22 based on a command from the control unit 30.

  Next, the control operation of the control unit 30 when a predetermined operation is performed on the mobile phone 2 with an imaging function will be described.

  When an operation for transmitting initial image data to the server 8 is performed on the mobile phone 2 with an imaging function, the control unit 30 performs a control operation as shown in the flowchart of FIG. .

  That is, when the user selects any of the initial image data from the plurality of initial image data stored in the storage unit 22 and performs a predetermined operation, the control unit 30 causes the communication unit 26 to transmit the initial image data. Data is transmitted to the server 8 (step S11).

  Then, the control unit 30 causes the image processing unit 24 to generate low-resolution image data corresponding to the initial image data, store the low-resolution image data in the storage unit 22, and delete the initial image data. (Step S12, Step S13 and Step S14). Here, step S12 may be executed prior to transmission of the initial image data, or may be executed during transmission.

  That is, the image processing unit 24, based on the command from the control unit 30, the low resolution image corresponding to the initial image data from the initial image data transmitted by the communication unit 26 or the initial image data being transmitted or about to be transmitted. Data is generated (step S12). After the low resolution image data is stored in the storage unit 22 (step S13), the initial image data is deleted from the storage unit 22 (step S14).

  Therefore, low-resolution image data corresponding to the initial image data is stored in the storage unit 22 instead of the transmitted original initial image data. Since the amount of data of the low resolution image data is smaller than that of the initial image data, the storage capacity of the storage unit 22 can be saved.

  On the other hand, when the server 8 receives the initial image data transmitted from the mobile phone 2 with an imaging function, the server 8 stores the initial image data in the storage unit 14. Therefore, the initial image data is deleted from the storage unit 22 of the mobile phone 2 with an imaging function, but can be stored in the storage unit 14 of the server 8.

  In addition, an operation for causing the display unit 20 to display a thumbnail image and an operation for selecting which of the initial image data or the low resolution image data to display are performed on the mobile phone 2 with an imaging function. In this case, the control unit 30 performs a control operation as shown in the flowchart of FIG.

  Here, the control operation of the control unit 30 when an operation for displaying a thumbnail image on the display unit 20 and an operation for selecting which of the initial image data or the low-resolution image data to display is performed. Since (the control operation up to immediately before step S21 in FIG. 4) is not the present invention itself, detailed description is omitted.

  When the user performs a predetermined operation for displaying a thumbnail image, immediately before step S21, the user can select initial image data or low-resolution image data that the user wants to display as a thumbnail image. A list of image names is displayed on the display unit 20.

  When a specific image name is selected from the list of image names by the user's operation (step S21), the control unit 30 stores low-resolution image data corresponding to the selected image name in the storage unit 22. Whether or not it has been determined is determined (step S22).

  When the low-resolution image data is stored in the storage unit 22 (YES in step S22), the control unit 30 displays the low-resolution image data as a thumbnail image at a predetermined position on the display unit 20. (Step S23).

  If the low resolution image data is not stored in the storage unit 22 (NO in step S22), the image processing unit 24 generates a thumbnail image based on the initial image data stored in the storage unit 22. (Step S24), the thumbnail image is displayed at a predetermined position on the display unit 20 (Step S25).

  Next, the cellular phone 2 with an imaging function displays initial image data corresponding to the low resolution image data from the server 8 to the storage unit 22 when the low resolution image data is displayed on the display unit 20 as a thumbnail image. It can be read. At this time, the control unit 30 and the server 8 of the cellular phone 2 with an imaging function perform operations corresponding to each other as shown in the flowchart of FIG.

  That is, when the user performs an instruction to read the initial image data into the storage unit 22 for the low-resolution image data as the thumbnail image displayed on the display unit 20 of the imaging function mobile phone 2. (Step S311), the control unit 30 causes the server 8 to transmit a signal requesting initial image data corresponding to the low resolution image data selected by the user to the communication unit 26 (step S312).

  On the other hand, when the server 8 is in a reception standby state (step S321) and receives a request signal from the mobile phone 2 with an imaging function (step S322), the server 8 includes various data stored in the storage unit 14. Thus, the initial image data requested by the mobile phone 2 with an imaging function is detected and transmitted to the mobile phone 2 with an imaging function (step S323). Then, the server 8 deletes the transmitted initial image data from the storage unit 14 (step S324).

  When receiving the initial image data transmitted from the server 8 (step S313), the control unit 30 of the mobile phone 2 with the imaging function instructs the image processing unit 24 to store the initial image data in the storage unit 22. (Step S314). Then, the low resolution image data corresponding to the initial image data is erased from the storage unit 22 (step S315).

  According to such an image data transmission system, image data transmission method, and mobile phone 2 with an imaging function, the mobile phone 2 with an imaging function uses the initial image data as a server in order to save the storage capacity of the storage unit 22. Even after the transmission and deletion, the corresponding low-resolution image data is stored, so that the content of the image data can be displayed on the display unit 20 of the own device.

  Further, when the initial image data already deleted from the storage unit 22 of the imaging function mobile phone 2 is required, the storage unit 22 is requested to transmit the initial image data to the server 8 and transmitted to the storage unit 22 again. It can be memorized. At this time, the low-resolution image data corresponding to the initial image data can be erased, so that the storage capacity of the storage unit 22 can be saved without extra use.

  Further, when low-resolution image data is stored in the storage unit 22 of the mobile phone 2 with an imaging function, it can be displayed on the display unit 20 as a thumbnail image.

  Further, when the server 8 transmits the initial image data stored in the storage unit 14 to the mobile phone 2 with an imaging function based on a request from the mobile phone 2 with an imaging function, the server 8 stores the initial image data. Since the data is erased from the unit 14, the storage capacity of the storage unit 14 can be saved without using it excessively.

  In the present embodiment, the storage unit 22 of the imaging function mobile phone 2 can store both the initial image data and the low-resolution image data corresponding to the initial image data at the same time. However, if the initial image data is stored, the corresponding low resolution image data is erased. If the low resolution image data is stored, the initial image data is erased. It may be.

  Further, the server 8 not only stores the initial image data received from the mobile phone 2 with an imaging function in the storage unit 14, but also can print the initial image data according to a request from the mobile phone 2 with an imaging function. It may be.

  In the present embodiment, in step S323 of the flowchart of FIG. 5, the server 8 transmits initial image data to the mobile phone 2 with an imaging function, and then deletes the initial image data transmitted in step S324 from the storage unit 14. However, the operation of step S324 may not be performed.

  The control unit 30 of the mobile phone 2 with an imaging function receives the initial image data from the server 8 and stores it in the storage unit 22 in step S313 and step S314, and then corresponds to the initial image data in step S315. Although the low-resolution image data is erased from the storage unit 22, the operation of step S315 may not be performed.

  Further, the control unit 30 of the mobile phone 2 with the imaging function immediately after the operation for instructing the initial image data to be read into the storage unit 22 in step S311 is performed, in steps S312 to S314, the initial image data. At any point in time from when the initial image data is received from the server 8 and stored in the storage unit 22, the operation of erasing the low-resolution image data in S 315 from the storage unit 22 is started. You may come to do.

  In the image data transmission system according to the present embodiment, the case where the mobile phone 2 with an imaging function is used as the mobile terminal device has been described. However, a mobile phone that does not have an imaging function is used. Also good.

  Needless to say, the mobile terminal device may use a mobile terminal device other than the mobile phone, such as a PDA (Personal Digital Assistant) having a communication function.

It is a block diagram which shows the image data transmission system which concerns on one embodiment of this invention. It is a block diagram which shows the circuit structure of the mobile telephone 2 with an imaging function shown in FIG. 6 is a flowchart showing an operation procedure of the control unit 8 of the mobile phone 2 with an imaging function when initial image data is transmitted to the server 8. It is a flowchart which shows the operation | movement procedure of the control part 8 of the mobile telephone 2 with an imaging function when displaying a thumbnail image. 7 is a flowchart showing an operation procedure of the control unit 8 of the mobile phone 2 with an imaging function when initial image data corresponding to low resolution image data is read from the server 8.

Explanation of symbols

2 Mobile phone with imaging function 4 Base station 6 Communication network 8 Server 10 Communication unit 12 Data processing unit 14 Storage unit 20 Display unit 22 Storage unit 24 Image processing unit 26 Communication unit 28 Operation unit 30 Control unit

Claims (9)

An image data transmission system comprising a mobile terminal device and a server,
The portable terminal device includes a storage unit that stores initial image data or / and low-resolution image data corresponding to the initial image data, and a communication unit that transmits the initial image data stored in the storage unit to the server. When the initial image data stored in the storage unit is transmitted to the server by the communication unit, low resolution image data corresponding to the initial image data is generated, and the low resolution image data is stored in the storage unit and the initial image An image processing unit for erasing data,
The image data transmission system, wherein the server includes a storage unit that stores initial image data received from the portable terminal device. When the portable terminal device requests the server to transmit initial image data corresponding to the low resolution image data stored in the storage unit and receives the initial image data, the portable terminal device receives the low resolution image data from the storage unit. 2. The image data transmission system according to claim 1, wherein the image data transmission system is erased. The server is configured to delete the initial image data from the storage unit when the initial image data stored in the storage unit is transmitted to the mobile terminal device based on a request from the mobile terminal device. The image data transmission system according to claim 1 or 2. Between a portable terminal device having a storage unit that stores initial image data or / and low-resolution image data corresponding to the image data, and a server having a storage unit that stores initial image data received from the portable terminal device An image data transmission method,
The portable terminal device generates the low resolution image data corresponding to the initial image data after transmitting the initial image data stored in the storage unit to the server and storing the initial image data in the storage unit. An image data transmission method characterized by storing image data in a storage unit and erasing initial image data. A storage unit for storing initial image data or / and low resolution image data corresponding to the initial image data;
A display unit for displaying initial image data or / and low-resolution image data;
A communication unit that transmits initial image data stored in the storage unit to a server of a communication network;
When the initial image data stored in the storage unit is transmitted to the server by the communication unit, low resolution image data corresponding to the initial image data is generated, and the low resolution image data is stored in the storage unit And an image processing unit that erases initial image data. When initial image data is stored in the storage unit and low resolution image data corresponding to the initial image data is not stored, a thumbnail image generated from the initial image data is displayed on the display unit. ,
Regardless of whether or not the initial image data is stored in the storage unit, if low-resolution image data corresponding to the initial image data is stored, the low-resolution image data is stored as a thumbnail image in the display unit. The portable terminal device according to claim 5, which is displayed. When a predetermined operation is performed while low-resolution image data is displayed on the display unit, initial image data corresponding to the low-resolution image data is received from the server and stored in the storage unit. The portable terminal device according to claim 5 or 6. The portable terminal device according to claim 7, wherein when receiving initial image data from the server, the low-resolution image data is erased. A server that transmits and receives image data to and from a mobile terminal device,
A storage unit for storing image data received from the mobile terminal device;
A server configured to delete the image data from the storage unit when the image data stored in the storage unit is transmitted to the mobile terminal device based on a request from the mobile terminal device.

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