JPS6367990A - Image information offering system - Google Patents

Abstract

PURPOSE:To reduce a file capacity and to shorten a transmission time for transmitting image data to a terminal by providing a screen erasing identifier in a page management part in page information. CONSTITUTION:The page information is constituted of the page management part, a retrieval control management part and a picture information part for actially providing the information to the terminal. The page management part has the screen erasing identifier for designating an area to be erased on the terminal, a coordinate indicating the erasing area and a screen display identifier for designating an area to be displayed on the terminal and a coordinate indicating the display area or the like. When a retrieval request is generated from the terminal 3 to the page information, the page information having a relevant page number is retrieved in the controller 11 of an information center 1. Then, based on the screen erasing identifier in the page management part, the image data of the image information part in said page information is transmitted to the terminal 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image information providing method in a system that connects an information center and a terminal with a transmission line to provide image information.

[Conventional technology]

Conventionally, a system has been developed that connects a terminal with a display function and an information center via a transmission line, searches for image information stored and managed within the information center in accordance with a search request from the terminal, and transmits and provides the image information to the terminal. ing.

Since this conventional system uses a transmission path such as a telephone network, the transmission band is limited, and currently the information provided is mainly text and simple color graphics. In addition, the provision method is to delete all the image data that has already been provided and displayed on the terminal, and then delete the page (the unit of provided image information is called a page. Note that /page can also be composed of multiple screens. However, here it is assumed that the screen consists of seven screens.) A method is adopted in which image information is sent to the terminal.

On the other hand, digitization of transmission lines is being promoted with l5DN and the like, and there is a possibility that J+Kb/S digital transmission lines will be applied to subscriber lines in the near future.

When it became possible to use a 74tKb/S digital transmission line, it became possible to provide natural speech, which was impossible to provide with current systems, natural images, and high-definition characters and graphics, which had serviceability problems due to the long transmission time. It will become possible to provide advanced information such as, and the service area will expand.

[Problem that the invention seeks to solve]

In such services, the same image information is often used for multiple consecutive pages. Using a product information service as an example, we will explain how the same image information is used on multiple consecutive pages. A natural image of the same product sample is used as the face money information, and a page consisting of the image information and text information explaining the product configuration, a page consisting of the image information and text information explaining the product specifications, a page consisting of the image information and text information explaining the product specifications, and a page consisting of the image information and text information explaining the product specifications. A possible service format is one in which pages consisting of text information explaining how to purchase a product are continuously provided. When providing product information services using the current method, each page is stored and managed in a file device, and before each page is provided, all image data that has already been provided and displayed on the terminal is erased. After that, the image data of the page will be provided to the terminal.
It will be displayed. However, when providing natural images as image information, even if the latest encoding technology is used, the amount of data per page is approximately several tens of kilobytes to one hundred kilobytes, which is enormous compared to conventional characters and graphics. Become. Therefore, the file capacity becomes enormous and the transmission time per page is on the order of several seconds to IO seconds.

[Means for solving problems]

The present invention first erases a part of the image data currently provided and displayed on the terminal based on the determination result of the screen erasure identifier in the page management section of the page information searched by a request from the terminal. It is possible to execute the erasure process (it is also possible to erase the entire area) and then continue to provide and display new information in the erased area using the screen display identifier.
It is expected that the file size and transmission time to the terminal will be reduced. As a result, the service effect is enhanced and the user's convenience is improved.The drawings will be explained in detail below.

〔Example〕

FIG. 1 is a conceptual diagram of an image information providing system used in the present invention. 1 is an information center that stores image information, etc. to be provided and searches for image information in response to search requests from terminals, and an information storage device 7.2 that stores image information, etc.; It is composed of a control device l/ that manages the terminal and controls the transmission and reception of information with the terminal. 3 is a transmission path connecting the information center/to the terminal, and 3 is a terminal having a display function and a search input function.

In such a system, search request information input from the terminal 3 is transmitted to the information center via the transmission path 2. The information center / interprets the search request information using the control device /l, searches the image information stored in the information storage device 7.2 based on the interpretation result, and sends it to the terminal 3 through the transmission path 2. Ru.

FIG. 2 is an example of a conceptual diagram showing the storage form of image information in the present invention, and shows the structure of the image information stored in the information storage device/2 of FIG. Second
In the figure, image information is accumulated for each page information, which is the unit of provision in response to a search request from a terminal, and the page information is stored in a page management section for page management, a search control management section for search control, and It consists of an image information section that actually provides information to the terminal.

The page management section displays various management information necessary for page management such as page number and creation date, as well as a screen erasure identifier that specifies the area to be erased on the device, coordinates that indicate the erasure area, and the display on the device. It has a screen display identifier that specifies the area to be displayed and coordinates that indicate the display area.

A search request is made from the terminal 3 for the page information configured in this way, and the page information having the corresponding page number is searched in the control device // of the information center 1.

Next, based on the screen erasure identifier in the page management section, it is determined in what form the screen currently provided and displayed on the terminal should be erased. Thereafter, the image data of the image information part in the page information is sent to the terminal 3 based on the screen display identifier.

FIG. 3 shows an example of the configuration of a page management section in page information in the present invention.

When the screen erasure identifier is O, the function is the same as that of the conventional system, and first the entire screen currently provided and displayed on the terminal is erased, and then the image data in the image information section is sent to the terminal.

If the screen erase identifier is 7 or more, use the coordinates of the upper left and lower right of the erase area written next to the screen erase identifier to create the corresponding rectangular area (X3i
+ Ysi ) + CXe1p Ysi ), (X
s;.

Yei ) + (Xei+ Yei ) (j ””
/ ~”) are deleted one after another.

Continue using the screen display identifier to create a rectangular area (
Xsi+ ysi) (Xei+ Ysi)+
(X5iIyet)+(Xei+Vei) (1
The image data in the image information section determined by the pointer pi (i=/-m) is sent to the pointer pi (i=/-m).

As a result, common image information in multiple consecutive pages of information is sent to the terminal only by sending the image data in the image information section of the first page information, and after that, only changes in the image information are sent. All you have to do is send it to the terminal.

〔Effect of the invention〕

As explained above, the present invention provides a screen erasure identifier in the page management section of the page information, so that when the same image information is in the same area in consecutive pages, the image data in that area is erased only on the first page. All you have to do is send it. As a result, it is possible to reduce the file size, and at the same time, it is also possible to shorten the transmission time required to send image data to the terminal, which increases the effectiveness of the service and improves the convenience of users. . In particular, in the case of OAI services and quiz services that use natural images with a large amount of data, this effect becomes remarkable as the question page and answer page often use the same natural image.

[Brief explanation of the drawing]

FIG. 1 shows an image information providing system used in the present invention. FIG. 2 is a conceptual diagram showing a storage form of image information in the present invention, and FIG. 3 shows an example of the configuration of a page management section within page information in the present invention. /... Information center, /C... Control device, /2... Information storage device, 2... Transmission path, 3... Terminal.

Claims (1)

[Claims] In an image information providing method that connects an information center that stores and manages a large amount of image information with a terminal via a transmission line, and provides corresponding image information in response to a search request from the terminal,
A page management unit that manages page information to be provided, a search control management unit that manages information for searching the next page, and an image information unit that stores image data that actually provides information to the terminal. The page information is stored and managed in the information storage device of the information center, and when providing the page information to the terminal, it is determined whether the page information has already been provided to the terminal by determining the screen erase identifier in the page management section. An image information providing method characterized in that image data in an image information section of the page can be provided to a terminal by erasing part or all of the image information on the page and subsequently determining a screen display identifier.