JP2003091410A - Portable terminal and picture display method and picture data distributing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display an image which a user wants to see by enlarging it in a short time on a screen, and to reduce any load on a CPU. SOLUTION: When the number of the pixels of received original image data is larger than the number of pixels of an operating/displaying part 13, a display control part 12 reduces the number of pixels of the original image data to the number of pixels of the operating/displaying part 13 in order to display the image data. When a position is designated by a pointing device 14 on the picture, a position calculating part 15 calculates corresponding coordinates in the original image data. An area designating part 16 designates an image area equal to the number of pixels of the operating/displaying part 13 in the original image data, and transmits the information through a transmitting/ receiving part 11 to an image data distributing device 20. At the time of receiving the image data corresponding to the image area, the display control part 12 displays the image data at the operating/displaying part 13 as a partially enlarged image without changing the number of pixels of the image data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal which displays image data received via a communication line, and more particularly,
The present invention relates to a mobile terminal, an image display method, and an image data distribution device, which are capable of enlarging a displayed image freely.

[0002]

2. Description of the Related Art In recent years, due to the breakthrough of image data compression technology and the rapid development of communication data rate, image data and music data with a large data size can be easily and quickly downloaded to information devices, and can be used easily. You can enjoy it. On the other hand, with the start of digital broadcasting, services for distributing video data such as television broadcasting as contents on the Internet or the like have been implemented.

[0003]

By the way, the video data of the television broadcast as described above is transmitted to a mobile phone, a PDA (Pe
rsonal Digital Assistants (personal information devices), the display screens of mobile terminals such as these are much smaller than TV screens.
It is necessary to temporarily compress the downloaded video data based on the size of the display screen and display the compressed video data on the display screen.

Here, in the case where an operation peculiar to digital data of freely enlarging / reducing a display image is to be realized on the above-mentioned terminal, the video data downloaded and stored in the memory is further compressed. Must be changed to a desired data size and the processed video data must be displayed. For this reason, the amount of processing in the mobile terminal increases, and it takes a long time to complete the processing, and during that time, there arises a problem that the user feels uncomfortable. In addition, the enormous amount of processing as described above is performed in the mobile terminal, which causes a problem that power consumption is high and the terminal cannot be used for a long time.

The present invention has been made in view of the above circumstances, and a mobile terminal and an image display can display an image which a user wants to enlarge and view on the screen in a short time and can reduce the processing performed in the mobile terminal. An object is to provide a method and an image data distribution device.

[0006]

In order to achieve the above object, the present invention provides a display means and, when the original image data received via a communication network is larger than the number of pixels of the display means,
A display control unit that reduces the number of pixels of the original image data to the number of pixels of the display unit to display on the display unit, and an image in which the image data with the reduced number of pixels is displayed, a part of the image. Position specifying means for specifying a position desired to be enlarged, position calculating means for calculating a position corresponding to the specified position in the original image data, and based on the position calculated by the position calculating means, In the original image data, area specifying means for specifying an image area equal to the number of pixels of the display means, information of the image area specified by the area specifying means, and identification information of the original image data are stored in the original image data. The display control means changes the number of pixels of the image data when the image data corresponding to the image area is received. Rukoto without providing a portable terminal, characterized in that to be displayed on the display unit as part enlarged image.

With such a configuration, when an instruction to enlarge the display is given, an image area corresponding to the number of pixels of the display means is designated as the image area to be enlarged and the image data corresponding to the image area is designated. Since the image data is downloaded from the image data distribution device side via the communication network, the downloaded image data can be displayed as an enlarged image as it is without converting the compression rate. This eliminates the need to perform any processing such as converting the compression rate of the image data in the mobile terminal, so that the processing performed in the mobile terminal can be significantly reduced, and after the enlargement display instruction is input, the image is enlarged. It is possible to shorten the time until the display is performed and also to minimize the power consumption.

According to the present invention, the display means, the storage means for storing the original image data, and the number of pixels of the original image data are displayed when the number of pixels of the original image data is larger than that of the display means. Display control means for reducing the number of pixels to the number of pixels to be displayed on the display means, and a position for designating a position in the image where the image data with the reduced number of pixels is displayed, for which a partial enlargement display of the image is desired. The number of pixels of the display unit in the original image data based on the designation unit, the position calculation unit that calculates a position corresponding to the designated position in the original image data, and the position calculated by the position calculation unit. Is specified by an area designating means for designating an image area equal to, the information of the image area designated by the area designating means, and the identification information of the original image data. Image data acquisition means for acquiring image data from the storage means, and the display control means displays the image as a partially enlarged image without changing the number of pixels of the image data acquired by the image data acquisition means. There is provided a mobile terminal characterized by being displayed on a means.

According to this structure, the storage means for storing the original image data downloaded via the communication network is provided, and the image area corresponding to the number of pixels of the display means when the enlarged display is instructed. Is designated as the image area to be enlarged and displayed, and the image data corresponding to the image area is obtained from the storage means provided in the mobile terminal, so that the image data to be displayed as the enlarged image can be obtained very easily. . The image data acquired from the storage means
Since the image data can be displayed as an enlarged image as it is without converting the compression rate, there is no need to perform any processing such as converting the compression rate of the image data in the mobile terminal, and processing performed in the mobile terminal Can be significantly reduced. As a result, it is possible to shorten the time from the input of the enlarged display instruction until the enlarged display is performed, and it is possible to minimize the power consumption.

Further, in the portable terminal described above, the display control means displays the image indicating which area in the original image data is enlarged by the display means as the display means. It is preferable to display it in a part of. This allows the user to recognize which area of the entire image the image currently displayed is, even after the enlarged image is displayed.

Further, in the portable terminal described above, the display control means superimposes on the image on which the image data having the reduced number of pixels is displayed, and the position designated by the position designating means and a part of the image are enlarged. It is preferable to display the image area displayed as an image. In this way, the position designated by the user and the display area displayed as the enlarged image are overlapped and displayed on the screen on which the entire image is displayed, so that the user can know the area to be enlarged and displayed in advance. It becomes possible to do.

Further, according to the present invention, when the original image data received via the communication network is larger than the number of pixels of the display means for displaying the image data, the number of pixels of the original image data is set to the pixel of the display means. In the process of reducing the number of pixels to a certain number and displaying it on the display means, in the image in which the image data having the reduced number of pixels is displayed, when the position where the partial enlargement display of the image is desired is designated, In the image data, a step of calculating a position corresponding to the specified position; a step of specifying an image area in the original image data, the number of pixels being equal to the number of pixels of the display means, based on the calculated position; The step of transmitting the information of the specified image area and the identification information of the original image data to the source of the original image data, and the case of receiving the image data corresponding to the specified image area , Without changing the number of pixels of the image data, to provide an image display method characterized by comprising the steps of displaying on the display unit as part enlarged image.

Further, according to the present invention, when the original image data received via the communication network is larger than the number of pixels of the display means for displaying the image data, the number of pixels of the original image data is set to the pixel of the display means. The step of displaying on the display means with the number of pixels reduced to a certain number, and in the image in which the image data with the reduced number of pixels is displayed, when the position where a partial enlarged display of the image is desired is designated, the original In the image data, a step of calculating a position corresponding to the specified position; a step of specifying an image area equal to the number of pixels of the display unit in the original image data based on the calculated position; Transmitting the information of the specified image area and the identification information of the original image data to the source of the original image data, and the image data corresponding to the specified image area. When receiving, without changing the number of pixels of the image data, an image display program for executing the step of displaying on the display unit as part enlarged image on the computer.

According to the present invention, the image data storing means for storing each image data, the receiving means for receiving the identification information of the image data and the information of the image area through the communication network, and the image data storing means. An image data processing unit that extracts image data corresponding to the identification information of the image data, and further reads image data corresponding to the information of the image region from the extracted image data, and the image data processing unit read out the image data. There is provided an image data distribution device comprising: a transmission unit that transmits the image data to a transmission source of the identification information of the image data and the information of the image area.

The portable terminal of the present invention may be a so-called CDMA (code division multiple access) system or PDC (Person).
In addition to mobile phones such as al Digital Cellular System) and PHS (registered trademark; Personal Handyphone System), mobile information terminals such as PDAs, and portable personal computers having a display screen smaller than the TV screen are also included. . Further, in the case of a PDA or a personal computer, the communication means may be built in or the communication means may be connected from the outside.

[0016]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing configurations of a mobile terminal and an image data distribution device according to an embodiment of the present invention. In the figure, reference numeral 10 is a mobile terminal and reference numeral 2
Reference numeral 0 indicates an image data distribution device. In the mobile terminal 10, reference numeral 11 is a transmission / reception unit, which outputs image data and the like received via the communication network and transmits transmission information generated in the device to the outside via the communication network. Code 1
A display control unit 2 performs a predetermined process on the image data output from the transmission / reception unit 11 or the image data stored in a memory (not shown) and causes the operation / display unit 13 to display the image data. Specifically, when the image data to be displayed is larger than the number of pixels of the operation / display unit 13, the number of pixels of the image data is reduced to the number of pixels of the operation / display unit 13 and displayed on the operation / display unit 13. To do. When the image data to be displayed is less than or equal to the number of pixels of the operation / display unit 13, the image is displayed on the operation / display unit 13 without performing a process such as changing the number of pixels.

Reference numeral 13 denotes an operation / display unit, which has a structure in which a touch panel is laminated on the upper surface of a liquid crystal display, functions as a display device for displaying information, and forms a pair with the pointing device 14. It also serves as an input device for inputting predetermined information. Further, reference numeral 15 is a position calculation unit, which is operated from the operation / display unit 13 from the correlation between the coordinates in the image currently displayed on the operation / display unit 13 and the coordinates in the original image data which is the source of the image. The coordinates on the original image data corresponding to the output position information are calculated. Reference numeral 16 is an area designating unit,
Based on the coordinates calculated by the position calculation unit 15, an image area equal to the number of pixels of the operation / display unit 13 is specified in the original image data. The specific processing content will be described later.

On the other hand, the image data distribution device 20 transmits / receives information to / from the terminal terminal 10 or the like accessed through the communication network, and the image data storage unit 23 based on the information output from the transmission / reception unit 21. An image data processing unit 22 that extracts predetermined image data from the image data storage unit 23 and an image data storage unit 23 that stores various image data. The image data storage unit 23 stores various image data regardless of whether it is a still image or a moving image, and each image data is provided with an identification number for identifying the image data.

Next, the operations of the mobile terminal 10 and the image data distribution device 20 having the above-mentioned configurations will be described. now,
For example, a case where the line between the mobile terminal 10 and the image data distribution device 20 is connected and the video data of the television broadcast is streamed from the image data distribution device 20 will be described.

The transmission / reception unit 11 includes an image data distribution device 20.
When the image data is received from, the image data is output to the display control unit 12. The display controller 12 includes a transmitter / receiver 11
The image data output from the operation / display unit 13 is displayed. At this time, since the video data of the television broadcast received from the image data distribution device 20 is created so as to be viewed on a large screen such as a television, it is larger than the display pixel of the operation / display unit 13 included in the mobile terminal 10. The image data has the number of pixels. Therefore, the display control unit 12 controls the image data (hereinafter, referred to as “image data”) received from the image data distribution device 20.
A process of reducing the number of pixels of the original image data to the number of pixels of the operation / display unit 13 is performed by performing a predetermined compression process on the as-downloaded image data that has not been subjected to this compression process). To do.

Here, for the sake of convenience, assuming that the number of pixels of the original image data is 320 pixels both vertically and horizontally, and the number of pixels of the operation / display unit 13 is 160 pixels vertically and horizontally, the display control unit 12 Both the vertical and horizontal pixels of the image data are reduced to 1/2 so as not to be distorted and displayed on the operation / display unit 13. For example, the pixels of the original image data are reduced to ½ by thinning out every other pixel vertically and horizontally. Note that any known method may be used as a method of image compression processing for compressing image data having a large number of pixels and displaying the image data on a display device having a small number of pixels.

By displaying the reduced image data on the operation / display unit 13, the operation / display unit 1
In 3, the image data with the reduced number of pixels is displayed.
By performing this process on each image data received from the image data distribution device 20, the operation of the mobile terminal 10 can be performed.
The image based on the image data downloaded from the image data distribution device 20 is displayed on the display unit 13 in real time.

Next, it is assumed that, for example, the user wants to enlarge the display while watching the image displayed on the operation / display unit 13. In this case, the user operates the pointing device 14 to operate the operation / display unit 13.
Specify the point you want to magnify on the screen displayed in. As a result, the information on the position desired to be enlarged and input by the user from the operation / display unit 13, that is, the XY coordinate information is output to the position calculation unit 15. At this time, the identification number of the image data is also output.

When the position calculating section 15 acquires the information, the position calculating section 15 calculates the coordinates on the original image data corresponding to the coordinates. That is, the position calculation unit 15 calculates the coordinates on the original image data corresponding to the coordinates specified in the reduced and displayed image. This processing can be obtained from the compression rate of the original image data. For example, now the original image data is
Since both sides are reduced to 1/2 and displayed on the operation / display unit 13, the position calculation unit 15 displays
By doubling the coordinates obtained from, the corresponding coordinates on the original image data can be calculated. Here, the coordinates acquired from the operation / display unit 13 are (X, Y) = (8
0,80), the position calculation unit 15 sets (X, Y) = (160,1) as the corresponding coordinates on the original image data.
60) is calculated. Then, when the coordinates in the original image are calculated in this way, this coordinate information (X, Y) = (1
60, 160) and the identification number of the image are output to the area designating unit 16.

The area designating section 16 operates on the original image data based on the coordinate information supplied from the position calculating section 15.
An image area equal to the number of pixels of the display unit 13 is designated. That is, since the coordinate information supplied from the position calculation unit 15 is (X, Y) = (160, 160), an image area of 160 pixels is designated vertically and horizontally with this coordinate as the center. As a result, as shown in FIG.
On the original image data of 0 pixels, (X, Y) = (16
0, 160) as the center, and an image area of 160 pixels vertically and horizontally, that is, (X, Y) = (80, 80), (240, 8)
A region surrounded by four points of (0), (240, 240), and (80, 240) is designated. Then, the area designating unit 16 sends the information of the designated image area (for example, the coordinate information of the above-mentioned four points) and the identification number of the image data to the transmitting / receiving unit 1.
Output to 1. As a result, the transmission / reception unit 11 transmits the relevant information to the image data distribution device 20 that is the transmission source of the image data and is currently connected to the line.

The transmission / reception unit 21 of the image data distribution device 20
When receiving the information of the image area (for example, the coordinate information of the above-mentioned four points) and the identification number of the image data from the mobile terminal 10, outputs the information to the image data processing unit 22.
The image data processing unit 22 first extracts the relevant image data from the image data storage unit 23 based on the identification number of the image data output from the transmission / reception unit 21, and further comprises the extracted vertical and horizontal 320 pixels. From the original image data,
Image data corresponding to the image area, that is, (X, Y) =
(80,80), (240,80), (240,24
The image data surrounded by the four points of (0) and (80, 240) is read and this image data is output to the transmitting / receiving unit 21.
The transmission / reception unit 21 transmits the image data received from the image data processing unit 22 to the mobile terminal 10. The information of the image area output from the area specifying unit 16 is not limited to the image information of four points surrounding the image area, and may be any information as long as the information can specify the image area. .

As a result, the transmitter / receiver 11 of the portable terminal 10
When receiving the image data corresponding to the image area designated by the area designating unit 16, outputs the image data to the display control unit 12. Upon receiving the image data, the display control unit 12 causes the operation / display unit 13 to display the image data without changing the number of pixels. As a result, an enlarged image centered on the position designated by the user is displayed on the operation / display unit 13.

The display control unit 12 includes an area designating unit 16
When the image area is designated by, the area corresponding to the designated area may be reduced and shown on the currently displayed screen. For example, as shown in FIG. 3, an enlarged area B is displayed on the image displayed on the operation / display unit 13. This allows the user to recognize in advance which range is enlarged and displayed.

Further, as in the above-described embodiment, when the image area is designated by the area designating unit 16, the information is immediately transmitted via the transmitting / receiving unit 11 to the image data distribution device 20.
When the image area is specified instead of being transmitted to the user, first, the area B to be enlarged and displayed as described above is presented to the user, and the user approves the area B. Etc. may be transmitted to the image data distribution device 20 via the transmission / reception unit 11. As for the approval information, a button for instructing approval is operated / displayed on the display unit 1.
It can be realized by providing it on the screen of No. 3. As a result, the user can carefully consider the area in which the enlarged display is desired until the user is satisfied, and the image displayed in the enlarged display is a satisfactory image, and the image displayed in the enlarged display is different from the desired image. Can be prevented.

Further, when the enlarged image is displayed on the operation / display unit 13, the display control unit 12 displays an image indicating which area in the original image data is enlarged. It may be displayed on a part of the operation / display unit 13. For example, the position of the image area in the entire image is indicated by reference numeral A in FIG. As a result, the user can immediately recognize which part of the entire image is currently enlarged and displayed.

In the above-described embodiment, the case where the video data is streamed from the image data distribution device 20 has been described. However, for example, the video data once downloaded and reproduced in the memory or the like is reproduced. The present invention can be applied to the case where In short, as long as it is possible to specify the image data to be enlarged and the delivery destination of the image data, then if there is information on the image area to be enlarged, a request for enlarged image data is made to the image data distribution device. It can be performed. As a result, it is possible to freely obtain the enlarged image data even when streaming reproduction is not performed. Further, when the original image data once downloaded is stored in the memory of the mobile terminal, the original image data corresponding to the image area to be enlarged and displayed is acquired from the image data stored in the memory. Also good. In this way, if the image data corresponding to the image area is acquired from the memory provided in the mobile terminal, it is not necessary to connect to the image data distribution device, so that the image data of the enlarged display can be easily displayed. Can be obtained.

The above-described present invention may be realized by providing the functions executed by the position calculation unit 15 and the area designation unit 16 described above on the image data distribution device 20 side. In this case, from the mobile terminal 10 side, position information (coordinate information) on the image designated by the user, identification number of the image data, and pixel information of the operation / display unit 13 (for example, 160 pixels in both vertical and horizontal directions, etc.) ) Is transmitted to the image data distribution device 20, and from this information, the image data distribution device 20
You may make it perform the above-mentioned process based on the information which the said position calculation part 15 and the area | region designation | designated part 16 which were moved in were received from the portable terminal. With this configuration, it is possible to further reduce the processing performed by the mobile terminal, further reduce the processing time, and suppress the consumption of the battery.

Further, a program for realizing the function of each unit of the portable terminal in the present embodiment shown in FIG. 1 is recorded in a computer-readable recording medium, and the program recorded in this recording medium is stored in the computer system. Various processes may be executed by reading and executing. The “computer system” mentioned here includes an OS and hardware such as peripheral devices.

The "computer-readable recording medium" means a flexible disk, a magneto-optical disk,
A portable medium such as a ROM or a CD-ROM, or a storage device such as a hard disk built in a computer system. Furthermore, "computer-readable recording medium"
Is a volatile memory (RAM) inside a computer system that serves as a server or client when a program is sent via a network such as the Internet or a communication line such as a telephone line, and holds the program for a certain period of time. Those that are present are also included.

Further, the program may be transmitted from a computer system that stores the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the program may be a program for realizing some of the functions described above. further,
It may be a so-called difference file (difference program) that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific structure is not limited to this embodiment, and includes a design etc. within the scope not departing from the gist of the present invention. Be done.

[0037]

As described above, according to the portable terminal of the present invention, when the original image data received through the display means and the communication network is larger than the number of pixels of the display means, the original image data A display control unit that reduces the number of pixels to the number of pixels of the display unit and displays the image on the display unit, and a position on the image in which the image data with the reduced number of pixels is displayed, in which a part of the image is desired to be enlarged, are displayed. Based on the position specifying means for specifying, the position calculating means for calculating the position corresponding to the specified position in the original image data, and the position calculated by the position calculating means, equal to the number of pixels of the display means in the original image data. An area designating means for designating an image area, and a transmitting means for transmitting the information of the image area designated by the area designating means and the identification information of the original image data to a source of the original image data, When the display control means receives the image data corresponding to the image area, the display control means causes the display means to display the image data as a partially enlarged image without changing the number of pixels of the image data. It is possible to reduce the power consumption, and it is possible to shorten the time from the input of the enlarged display instruction until the enlarged display is performed, and it is possible to minimize the power consumption. In addition, the user can freely operate the screen display only by performing a simple input operation of designating a position to be enlarged and displayed, so that it is possible to provide a portable terminal with excellent convenience.

Further, according to the portable terminal of the present invention, when the display means, the storage means for storing the original image data, and the original image data are larger than the number of pixels of the display means, the original image data Display control means for reducing the number of pixels to the number of pixels of the display means for display on the display means, and an image in which image data having the reduced number of pixels is displayed, a partial enlarged display of the image is desired. Position specifying means for specifying a position, and position calculating means for calculating a position corresponding to the specified position in the original image data,
Based on the position calculated by the position calculating unit, a region specifying unit that specifies an image region having the same number of pixels as the display unit in the original image data, information on the image region specified by the region specifying unit, and the information Image data specified by the identification information of the original image data, image data acquisition means for acquiring from the storage means,
Since the display control unit causes the display unit to display a partially enlarged image on the display unit without changing the number of pixels of the image data obtained by the image data obtaining unit, the image data to be displayed as the enlarged image can be obtained very easily. can do. Further, since the image data obtained from the storage means is the image data that can be displayed as an enlarged image as it is without converting the compression rate, there is no processing such as converting the compression rate of the image data in the mobile terminal. Since it is not necessary to perform the processing, the processing performed in the mobile terminal can be significantly reduced. As a result, it is possible to shorten the time from the input of the enlarged display instruction until the enlarged display is performed, and it is possible to minimize the power consumption.

Further, according to the portable terminal of the present invention, the display control means causes the display means to display an image showing which area of the original image data is enlarged in the image displayed as the partially enlarged image. Since it is displayed on a part, it is possible to provide a mobile terminal that is easier to operate.

Further, according to the portable terminal of the present invention, the display control means superimposes on the image on which the image data having the reduced number of pixels is displayed, and the position designated by the position designating means and a part of the image are enlarged. Since the image area to be displayed as an image is displayed, the user can grasp the display area to be displayed next as the enlarged image before the enlarged image is displayed, and accurately specify the desired enlarged display screen. be able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing configurations of a mobile terminal and an image data distribution device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram for specifically explaining a process performed by an area designating unit 16.

FIG. 3 is a diagram showing an example of a case where an image region is displayed on the screen where the entire image is displayed on the operation / display unit 13.

FIG. 4 is a diagram showing an example of a case in which which area of the entire image the enlarged image corresponds to is displayed on the screen displaying the enlarged image.

[Explanation of symbols]

10 ... Mobile terminal, 11 ... Transceiver (transmitting means), 12 ...
Display control unit (display control unit), 13 ... Operation / display unit (display unit, position designation unit), 14 ... Pointing device (position designation unit), 15 ... Position calculation unit (position calculation unit), 16 ... Region designation unit (Area designation means), 20 ... Image data distribution device, 21 ... Transmitting / receiving section (receiving means, transmitting means), 22 ... Image data processing section (image data processing means), 23 ... Image data storage section (image data storage means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Sayaka Omura             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor, Uchida             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Masakazu Tsubouchi             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Daisaku Umemoto             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Katsuyuki Furuguchi             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Toshitaka Kose             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Hiroshi Noguchi             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. (72) Inventor Eiji Onishi             1-7 Aki, Otsuka-cho, Yukiya, Ota-ku, Tokyo             Su Electric Co., Ltd. F term (reference) 5B057 CA12 CA16 CB12 CB16 CC01                       CD05 CG01                 5B069 CA03 DD11

Claims (7)

[Claims] 1. When the number of pixels of the original image data received through the display means and the communication network is larger than the number of pixels of the display means, the number of pixels of the original image data is reduced to the number of pixels of the display means. Display control means for displaying on the display means; position designation means for designating a desired position for partially enlarging the image in the image on which the image data having a reduced number of pixels is displayed; and the original image data In the position calculation means for calculating a position corresponding to the specified position, and an area for specifying an image area equal to the number of pixels of the display means in the original image data based on the position calculated by the position calculation means. Designating means, and transmitting means for transmitting the information of the image area designated by the area designating means and the identification information of the original image data to a source of the original image data. A mobile phone characterized in that, when receiving the image data corresponding to the image area, the display control means causes the display means to display a partially enlarged image without changing the number of pixels of the image data. Terminal. 2. Display means, storage means for storing original image data, and when the original image data is larger than the number of pixels of the display means, the number of pixels of the original image data is set to the number of pixels of the display means. Display control means for decreasing the number of pixels to be displayed on the display means, and position specifying means for specifying a desired position for partially enlarging the image in an image on which image data with a reduced number of pixels is displayed, In the original image data, a position calculation unit that calculates a position corresponding to the designated position, and an image area that is equal to the number of pixels of the display unit in the original image data based on the position calculated by the position calculation unit. Image data specified by the area specifying means for specifying the image area information specified by the area specifying means and the identification information of the original image data. Image data acquisition means for acquiring from the storage means, the display control means displays on the display means as a partially enlarged image without changing the number of pixels of the image data acquired by the image data acquisition means. A mobile terminal that is characterized by: 3. The display control means displays, on a part of the display means, an image indicating which area of the original image data is enlarged by the image displayed as the partially enlarged image. The mobile terminal according to claim 1 or 2, characterized in that. 4. The display control means superimposes the image on which the image data with the reduced number of pixels is displayed, the position designated by the position designating means, and an image area to be displayed as a partially enlarged image. Is displayed, The portable terminal in any one of Claims 1-3. 5. When the original image data received via the communication network is larger than the number of pixels of the display means for displaying the image data, the number of pixels of the original image data is reduced to the number of pixels of the display means. In the process of displaying on the display means, and in the image in which the image data in which the number of pixels is reduced is displayed, when a position where a partial enlarged display of the image is desired is designated, in the original image data, A step of calculating a position corresponding to the specified position; a step of specifying, in the original image data, an image area equal to the number of pixels of the display means based on the calculated position; and the specified image area Information of the original image data and the identification information of the original image data are transmitted to the source of the original image data, and when the image data corresponding to the designated image area is received, the image data Without changing the number of pixels data, the image display method characterized by comprising the step of displaying on the display unit as part enlarged image. 6. The number of pixels of the original image data is reduced to the number of pixels of the display means when the number of pixels of the original image data received via the communication network is larger than the number of pixels of the display means for displaying the image data. The step of displaying on the display means, and in the image in which the image data in which the number of pixels is reduced is displayed, when a position where a partially enlarged display of the image is desired is designated, in the original image data, Calculating a position corresponding to the specified position; specifying an image region in the original image data, the image region being equal to the number of pixels of the display unit, based on the calculated position; and the specified image region. And the identification information of the original image data is transmitted to the source of the original image data, and the image data corresponding to the designated image area is received. The case, without changing the number of pixels of the image data, the image display program for executing the step of displaying on the display unit as part enlarged image on the computer. 7. Image data storage means for storing each image data, receiving means for receiving image data identification information and image area information via a communication network, and image data storage means for receiving the image data from the image data storage means. Image data processing means for extracting image data corresponding to identification information, and further reading image data corresponding to information of the image area from the extracted image data, and the image data read by the image processing means. An image data distribution apparatus comprising: a transmission unit that transmits the identification information of the image data and the information of the image area to a transmission source.