JP2003167725A - Image display device and image display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in a conventional Internet browser wherein used memory size must be reduced to suppress cost of a main storage (RAM) and saving of memory is necessary because image data has large data size when mounting a browser in built-in equipment because the conventional Internet browser is developed for a personal computer and restriction against used memory amount is reduced. <P>SOLUTION: An image display device has an Internet connection means, an HTTP connection means, an HTTP analysis means, a data common own means, an image analysis means, an image decode means, an image resize means, a source data common own means, an intermediate data common own means, and a display data common own means so that image data is efficiently owned in common to suppress used memory size. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device and an image display method for an internet browser that displays data on the internet.

[0002]

2. Description of the Related Art Conventional Internet browsers have been developed for personal computers, and therefore have a small limit on memory usage.

[0003]

However, when the browser is installed in an embedded device, the main storage device (R
It is necessary to reduce the used memory size in order to suppress the cost of AM). In particular, image data has a large data size and needs to save memory.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an image display device and an image display method in which image data is efficiently shared and the used memory size is suppressed.

[0005]

In order to achieve this object, the present invention provides an Internet connection unit for connecting to the Internet, an HTTP connection unit for HTTP connection to a server on the Internet to acquire data, and an acquired data. An HTTP analysis means for analyzing, a data sharing means for determining whether or not the data to be acquired has already been acquired, an image analysis means for analyzing the image data, an image decoding means for decoding the compressed image data, Image resizing means for enlarging or reducing image data,
A configuration including a source data sharing unit for sharing image data obtained from the Internet, an intermediate data sharing unit for sharing decoded image data, and a display data sharing unit for sharing image data for display. Image display device.

According to the present invention, it is possible to realize an image display device capable of efficiently sharing image data and suppressing the used memory size.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is an Internet connection means for connecting to the Internet, an HTTP connection means for HTTP-connecting to a server on the Internet to acquire data, and analyzing the acquired data. HTTP analyzing means, a data sharing means for determining whether or not the data to be acquired has already been acquired, an image analyzing means for analyzing image data, an image decoding means for decoding compressed image data, and an image An image display device having an image resizing unit for enlarging / reducing data and a source data sharing unit for sharing image data obtained from the Internet. The image data can be efficiently shared and the used memory size can be suppressed. Has the effect of.

According to a second aspect of the present invention, in place of the source data sharing means in the image display apparatus according to the first aspect, there is provided an intermediate data sharing means for performing a sharing process of decoded image data. Similarly, the image data can be efficiently shared and the used memory size can be suppressed.

According to a third aspect of the present invention, the image display device according to the first aspect further comprises display data sharing means for performing a process of sharing image data for display. The image data can be efficiently shared, the used memory size can be suppressed, and the image data for display can be shared.

The invention according to claim 4 of the present invention is an internet connection step of connecting to the internet, an HTTP connection step of HTTP connecting to a server on the internet to acquire data, and an HTTP analysis step of analyzing the acquired data. And a data sharing step of determining whether or not the data to be acquired has already been acquired, and an image analysis step of analyzing image data,
An image display method including an image decoding step of decoding compressed image data, an image resizing step of enlarging / reducing image data, and a source data sharing step of sharing processing of image data acquired from the Internet. Can be shared efficiently and the used memory size can be suppressed.

According to a fifth aspect of the present invention, in place of the source data sharing step in the image display method according to the fourth aspect, there is provided a method having an intermediate data sharing step for performing shared processing of decoded image data. Similarly, the image data can be shared efficiently and the used memory size can be suppressed.

According to a sixth aspect of the present invention, the image display method according to the fourth aspect further includes a display data sharing step of performing a process of sharing image data for display, The image data can be efficiently shared, the used memory size can be suppressed, and the image data for display can be shared.

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing an example of an image display device of the present invention.

This image display device comprises a central processing unit 1 and
The display device 2, the communication device 3, the input device 4, the main storage device 5, and the secondary storage device 6 are provided, and the secondary storage device 6 is an internet connection unit 7 for connecting to the internet and a server on the internet. HTTP connection unit 8 that connects to HTTP to obtain data, and H that analyzes the obtained data
A TML analysis unit 9, a data sharing unit 10 that determines whether or not the data to be acquired has already been acquired, an image analysis unit 11 that analyzes image data, and an image decoding unit 12 that decodes compressed image data. An image resizing unit 13 for enlarging and reducing the image data, a source data sharing unit 14 for sharing the image data acquired from the Internet, an intermediate data sharing unit 15 for sharing the decoded image data, It is configured to include a display data sharing unit 16 that performs sharing processing of image data for display.

The operation of the above image display device will be described below with reference to the schematic flowchart of FIG. In the figure, S represents a step.

In step S101, the internet connection unit 7 connects to the internet using the communication device 3.

In step S102, the HTTP connection unit 8 acquires the HTML data shown in FIG. 5 from the Internet.

In step S103, the HTML analysis unit 9 makes the HTML
The data is analyzed and a request for acquiring the data of the image 1 and the image 2 described in HTML is issued.

In step S104, it is confirmed whether the data sharing unit 10 has already acquired the data for the image 1.
The TP connection unit 8 acquires the data of the image 1 described in HTML.

In step S105, the HTML analysis unit 9 causes the image 1
The image management structure is secured, and if the display size is specified on the HTML, it is stored in the image management structure. Further, the image analysis unit 11 secures the source data area, establishes a link from the image management structure, and stores the acquired image 1 data. At this time, the data shown in FIG. 9 is stored in the main storage device 5.

In step S106, the image analysis unit 11 secures an intermediate data area and establishes a link from the image management structure. Further, the image decoding unit 12 decodes the image data in the source data area, stores the decoding result in the intermediate data area, and stores the size information in the image management structure. At this time, the data shown in FIG. 10 is stored in the main storage device 5.

At S107, since the display size is not specified in the image management structure, the image analysis unit 11 determines the display size of the image. Further, the image analysis unit 11 secures the display data area and establishes a link from the image management structure. Further, the image resizing unit 13 enlarges / reduces the data in the intermediate data area to the display size and stores it in the display data area. At this time, the data shown in FIG. 11 is stored in the main storage device 5.

In step S108, the image analysis unit 11 releases the intermediate data area. At this time, the data shown in FIG. 12 is stored in the main storage device 5.

In step S109, it is confirmed whether or not the data sharing unit 10 has already acquired the image 2 data.

In step S110, the HTML analysis unit 9 causes the image 2
The image management structure is secured, and if the display size is specified on the HTML, it is stored in the image management structure. Further, the source data sharing unit 14 links the image management structure of the image 2 to the source data area of the image 1. At this time, FIG.
The data shown in is stored in the main storage device 5.

In step S111, the image analysis unit 11 secures an intermediate data area and establishes a link from the image management structure. Further, the image decoding unit 12 decodes the image data in the source data area, stores the decoding result in the intermediate data area, and stores the size information in the image management structure. At this time, the data shown in FIG. 14 is stored in the main storage device 5.

Since only the display width is designated in the image management structure in S112, the image analysis unit 11 determines the image height so as to maintain the aspect ratio of the original image. In addition, the image analysis unit 1
1 secures a display data area and establishes a link from the image management structure. Further, the image resizing unit 13 enlarges / reduces the data in the intermediate data area to the display size and stores it in the display data area. At this time, the data shown in FIG. 15 is stored in the main storage device 5.

In step S113, the image analysis unit 11 releases the intermediate data area. At this time, the data shown in FIG. 16 is stored in the main storage device 5. Further, the screen shown in FIG. 6 is displayed on the display device 2.

(Second Embodiment) Next, the operation of the image display apparatus according to the second embodiment will be described with reference to the schematic flowchart shown in FIG. The image display device has the configuration shown in FIG.

In step S201, the internet connection unit 7 connects to the internet using the communication device 3.

In step S202, the HTTP connection unit 8 acquires the HTML data shown in FIG. 5 from the Internet.

In step S203, the HTML analysis unit 9 sets the HTML
The data is analyzed and a request for acquiring the data of the image 1 and the image 2 described in HTML is issued.

In step S204, it is confirmed whether the data sharing unit 10 has already acquired the data for the image 1, and the HTTP
The connection unit 8 acquires the data of the image 1 described in HTML.

In step S205, the HTML analysis unit 9 secures the image management structure of the image 1, and if the display size is designated on the HTML, stores it in the image management structure. Further, the image analysis unit 11 secures the source data area, establishes a link from the image management structure, and stores the acquired image 1 data.
At this time, the data shown in FIG. 17 is stored in the main storage device 5.

In step S206, the image analysis unit 11 secures the intermediate data area and establishes a link from the image management structure. Further, the image decoding unit 12 decodes the image data in the source data area, stores the decoding result in the intermediate data area, and stores the size information in the image management structure. At this time, the data shown in FIG. 18 is stored in the main storage device 5.

In step S207, the image analysis unit 11 releases the source data area. At this time, the data shown in FIG. 19 is stored in the main storage device 5.

In step S208, since the display size is not specified in the image management structure, the image analysis unit 11 determines the display size of the image. Further, the image analysis unit 11 secures the display data area and establishes a link from the image management structure. Further, the image resizing unit 13 enlarges / reduces the data in the intermediate data area to the display size and stores it in the display data area. At this time, the data shown in FIG. 20 is stored in the main storage device 5.

In step S209, it is confirmed whether the data sharing unit 10 has already acquired the data for the image 2.

In step S210, the HTML analysis unit 9 causes the image 2
The image management structure is secured, and if the display size is specified on the HTML, it is stored in the image management structure. In addition, the intermediate data sharing unit 15 selects the image 1 from the image management structure of the image 2.
Link to the intermediate data area of. At this time, the data shown in FIG. 21 is stored in the main storage device 5.

Since only the display width is specified in the image management structure in S211, the image analysis unit 11 determines the height of the image so as to maintain the aspect ratio of the original image. Further, the image analysis unit 11 secures the display data area and establishes a link from the image management structure. Further, the image resizing unit 13 enlarges / reduces the data in the intermediate data area to the display size and stores it in the display data area. At this time, the data shown in FIG. 22 is stored in the main storage device 5. Further, the screen shown in FIG. 6 is displayed on the display device 2.

(Third Embodiment) Next, the operation of the image display device of the third embodiment will be described with reference to the schematic flow chart shown in FIG. The image display device has the configuration shown in FIG.

In step S301, the internet connection unit 7 uses the communication device 3 to connect to the internet.

In step S302, the HTTP connection unit 8 acquires the HTML data shown in FIG. 7 from the Internet.

In step S303, the HTML analysis unit 9 makes the HTML
The data is analyzed and a request for acquiring the data of the image 1 and the image 2 described in HTML is issued.

In step S304, it is confirmed whether the data sharing unit 10 has already acquired the image 1 data, and the HTTP
The connection unit 8 acquires the data of the image 1 described in HTML.

In step S305, the HTML analysis unit 9 causes the image 1
The image management structure is secured, and if the display size is specified on the HTML, it is stored in the image management structure. Further, the image analysis unit 11 secures the source data area, establishes a link from the image management structure, and stores the acquired image 1 data. At this time, the data shown in FIG. 23 is stored in the main storage device 5.

In step S306, the image analysis unit 11 secures the intermediate data area and establishes a link from the image management structure. The image decoding unit 12 decodes the image data in the source data area, stores the decoding result in the intermediate data area, and stores the size information in the image management structure. At this time, FIG.
The data shown in is stored in the main storage device 5.

In step S307, since the display size is not specified in the image management structure, the image analysis unit 11 determines the display size of the image. Further, the image analysis unit 11 secures the display data area and establishes a link from the image management structure. Further, the image resizing unit 13 enlarges / reduces the data in the intermediate data area to the display size and stores it in the display data area. At this time, the data shown in FIG. 25 is stored in the main storage device 5.

In step S308, the image analysis unit 11 releases the intermediate data area. At this time, the data shown in FIG. 26 is stored in the main storage device 5.

In S309, it is confirmed whether or not the image 2 has already been acquired by the data sharing unit 10.

In step S310, the HTML analysis unit 9 causes the image 2
The image management structure is secured, and if the display size is specified on the HTML, it is stored in the image management structure. Further, the source data sharing unit 14 links the image management structure of the image 2 to the source data area of the image 1. At this time, FIG.
The data shown in is stored in the main storage device 5.

In S311, it is confirmed that the display size is the same as the reference size, and the display data sharing unit 16 links the image management structure of image 2 to the display data area of image 1. At this time, the data shown in FIG. 28 is stored in the main storage device 5. Further, the screen shown in FIG. 8 is displayed on the display device 2.

[0054]

As is apparent from the above description, the present invention can realize an image display device capable of efficiently sharing image data and suppressing the used memory size. The data such as the current position can be transferred by utilizing the transfer function, and the transfer function can be realized while suppressing an increase in cost, which is a great effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an image display device of the present invention.

FIG. 2 is a schematic flowchart according to the first embodiment of the present invention.

FIG. 3 is a schematic flowchart in Embodiment 2 of the present invention.

FIG. 4 is a schematic flowchart in a third embodiment of the present invention.

FIG. 5 is an HTML data diagram in the first and second embodiments.

FIG. 6 is a display screen diagram in the first and second embodiments.

FIG. 7 is an HTML data diagram according to the third embodiment.

FIG. 8 is a display screen diagram in the third embodiment.

FIG. 9 is a data diagram in the first embodiment.

FIG. 10 is a data diagram in the first embodiment.

FIG. 11 is a data diagram in the first embodiment.

FIG. 12 is a data diagram in the first embodiment.

FIG. 13 is a data diagram in the first embodiment.

FIG. 14 is a data diagram in the first embodiment.

FIG. 15 is a data diagram in the first embodiment.

FIG. 16 is a data diagram in the first embodiment.

FIG. 17 is a data diagram in the second embodiment.

FIG. 18 is a data diagram in the second embodiment.

FIG. 19 is a data diagram in the second embodiment.

FIG. 20 is a data diagram in the second embodiment.

FIG. 21 is a data diagram in the second embodiment.

FIG. 22 is a data diagram according to the second embodiment.

FIG. 23 is a data diagram in the third embodiment.

FIG. 24 is a data diagram in the third embodiment.

FIG. 25 is a data diagram according to the third embodiment.

FIG. 26 is a data diagram in the third embodiment.

FIG. 27 is a data diagram in the third embodiment.

FIG. 28 is a data diagram in the third embodiment.

[Explanation of symbols]

1 Central processing unit 2 display 3 communication devices 4 input device 5 main memory 6 Secondary storage 7 Internet connection department 8 HTTP connection 9 HTML analysis section 10 Data sharing section 11 Image analysis section 12 Image decoding section 13 Image resize section 14 Source data sharing section 15 Intermediate data sharing section 16 Display data sharing section

Claims (6)

[Claims] 1. An Internet connection unit for connecting to the Internet, an HTTP connection unit for HTTP-connecting to a server on the Internet to acquire data, an HTTP analysis unit for analyzing the acquired data, and a data to be acquired has already been acquired. A data sharing unit that determines whether the image data has been processed, an image analysis unit that analyzes the image data, an image decoding unit that decodes the compressed image data, an image resizing unit that enlarges or reduces the image data,
An image display device comprising a source data sharing means for sharing image data acquired from the Internet. 2. An Internet connection unit for connecting to the Internet, an HTTP connection unit for HTTP-connecting to a server on the Internet to acquire data, an HTTP analysis unit for analyzing the acquired data, and a data to be acquired has already been acquired. A data sharing unit that determines whether the image data has been processed, an image analysis unit that analyzes the image data, an image decoding unit that decodes the compressed image data, an image resizing unit that enlarges or reduces the image data,
An image display device comprising: an intermediate data sharing unit that performs a process of sharing decoded image data. 3. An Internet connection unit for connecting to the Internet, an HTTP connection unit for HTTP-connecting to a server on the Internet to acquire data, an HTTP analysis unit for analyzing the acquired data, and a data to be acquired has already been acquired. A data sharing unit that determines whether the image data has been processed, an image analysis unit that analyzes the image data, an image decoding unit that decodes the compressed image data, an image resizing unit that enlarges or reduces the image data,
An image display device comprising: a source data sharing unit that performs a sharing process of image data acquired from the Internet; and a display data sharing unit that performs a sharing process of image data for display. 4. An Internet connection step for connecting to the Internet, and HTTP to a server on the Internet.
An HTTP connection step of connecting and acquiring data, an HTTP analysis step of analyzing the acquired data, a data sharing step of determining whether or not the data to be acquired has already been acquired, and an image analysis step of analyzing the image data. And an image decoding step of decoding the compressed image data, an image resizing step of enlarging / reducing the image data, and a source data sharing step of sharing the image data acquired from the Internet. Display method. 5. An Internet connection step for connecting to the Internet, and HTTP on a server on the Internet
An HTTP connection step of connecting and acquiring data, an HTTP analysis step of analyzing the acquired data, a data sharing step of determining whether or not the data to be acquired has already been acquired, and an image analysis step of analyzing the image data. And an image display step characterized by having an image decoding step of decoding the compressed image data, an image resizing step of enlarging / reducing the image data, and an intermediate data sharing step of sharing the decoded image data. Method. 6. An internet connection step of connecting to the internet, and HTTP to a server on the internet.
An HTTP connection step of connecting and acquiring data, an HTTP analysis step of analyzing the acquired data, a data sharing step of determining whether or not the data to be acquired has already been acquired, and an image analysis step of analyzing the image data. , An image decoding step of decoding the compressed image data, an image resizing step of enlarging / reducing the image data, a source data sharing step of sharing the image data acquired from the Internet, and an image data for display. An image display method comprising a display data sharing step of performing sharing processing.