JPH01259650A - For plural information batch retrieval system - Google Patents

Abstract

PURPOSE:To improve a line usage efficiency by batchtransfer-storing in a subscriber's terminal with arbitrarily making possible to indicate the plural pieces of information relating to the request when the plural number of information batch retrieval request is made from the subscriber's terminal to a center. CONSTITUTION:When the retrieval request of one group of same kind of information is made from a subscriber's terminal 4 to a center 1 after being connected by the center 1 and a line 2, these pieces of the information are batch-transfer stored to the subscriber's terminal 4 upon integrating the information in the center 1. After breaking the line 2 with the center 1 at the time point of receiving all these pieces of the information in the subscriber's terminal 4, the stored information is removed in information unit by an off-line.mode and indicated. Thus, only the transfer of the information is executed in an on-line.mode, the retrieval and indication of the information are executed in the off-line.mode and the line usage efficiency is considerably improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an information retrieval method in a videotex system, and is particularly applicable when searching for multiple pieces of the same type of information, repeatedly using the same information, or searching for a long time. The present invention relates to a method for searching multiple pieces of information at once, which is suitable when information is used over a period of time.

[Prior Art] The conventional Videotex system is described in "Videotex Communication Network Service Interface (Terminal Line)" (edited by Nippon Telegraph and Telephone Public Corporation, published by Telecommunications Association (August 25, 1980)), page 16. As can be seen from the basic operating procedure described in Section 17, when searching for some information, the center that holds that information is called up, and after being connected to it, a search request is basically made. At each time, the center provides information according to the request.

[Problems to be Solved by the Invention] However, until now, each time a search request is made, the information corresponding to the request is transferred from the center and displayed. 4, no information is being transferred over the line during information selection/search operations or while information is displayed on the terminal, and the line usage efficiency has significantly decreased. There is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for searching multiple pieces of information at once by increasing line usage efficiency.

[Means for solving the problem] The above purpose is to, when a subscriber terminal sends a request for a batch search of multiple pieces of information to the center, transfer and store the multiple pieces of information related to the request at once to the subscriber terminal so that it can be displayed at any time. This is achieved by

[Function] After being connected to the center via line, if a subscriber terminal requests the center to search for a group of similar information, the center integrates the information and then transfers and stores it all at once to the subscriber terminal. It is something that After the subscriber terminal has received all of the information and disconnected from the center, the stored information is retrieved and displayed in units of information in an offline mode.

That is, in the online mode, only information is transferred, and information retrieval and display is performed in the offline mode, so that line usage efficiency can be greatly improved.

[Example] The present invention will be explained below with reference to FIGS. 1 to 5.

First, the Videotex system according to the present invention will be explained by taking the Captain system as an example, and FIG. 2 shows the general system configuration thereof.

As shown in the figure, an information center 1 that holds various information;
It consists of a Videotex communication network 2 that performs exchange processing, etc., and a plurality of subscriber terminals 4 accommodated in the Videotex communication network 2. The subscriber terminal 4 is equipped with a telephone set 3 for line connection, and is also configured with an auxiliary storage device 5 for storing multiple pieces of information with a relatively large capacity in order to carry out the present invention, and is configured to be equipped with an auxiliary storage device 5 for storing multiple pieces of information that is required for carrying out the present invention. Information center 1
On the other hand, the information in response to the request from the information center 1 is transferred to the subscriber terminal 4, and is sent to the CAPTotoc.
ol Σyntax) and is displayed on the subscriber terminal 4. When a multiple information batch search request is issued as a search request, multiple pieces of information are transferred and stored in the auxiliary storage device 5 from the information center 1 at once, and the information can be displayed at any time thereafter. be.

FIG. 1 shows the basic operating procedure when searching multiple pieces of information at once. In this case, after the special number r166J and the telephone number of the information center 1 are dialed from the subscriber terminal 4 using the telephone set 3, the switching button is pressed in response to a videotex switching instruction from the videotex communication network 2. It has become. With this operation, the connection with the information center 1 is completed, and after the terminal profile (terminal class) is sent from the subscriber terminal 4, the start screen is displayed on the subscriber terminal 4, so that the necessary information can be searched as screen information from now on. This is the result.

By the way, in the information center 1, each screen information 2 is stored in the form shown in FIG. 3 for each information block as a group of screen information of the same type.
1 is stored in association with the next screen access selector 22. When searching for screen information with Captain, there are three types of screen information: enter the screen number corresponding to the desired screen information from a guidebook, enter the item name in kana characters, or follow the table of contents guide. There are selection methods, but in any case, it is easy to find the desired information block. Now, as shown in Figure 4, each screen information has a screen number consisting of 11 digits, and the first 4 digits are I P (Information
Each information block can be uniquely identified by its IP number. The screen information selection method by inputting the screen number above is part I.
The search is performed using the P number. In the previous search by IP number, after selecting an information block,
Searches were performed in a conversational format with the center in order from the top screen information shown in Figure 3, but in the search according to the present invention, the screen number is entered as, for example, ``IP number II + I + bulk data transfer instruction code''. This makes it possible to transfer entire blocks of information.

As shown in FIG. 1, when the information center 1 receives a bulk search request from the subscriber terminal 4, all the screen information belonging to the information block specified by the IP number is integrated as one information. It is designed to be transferred to the subscriber terminal 4 side. However, in this case, in the Videotex communication network 2, the information from the information center 1 is
Since the LPS is checked, the integrated information cannot be transferred as is. For this reason,
The integrated information is adapted to be transferred as telesoftware data information that can be transferred transparently within the Videotex communication network 2. The format concept of the information transferred from information center 1 in that case is the fifth
As shown in the figure.

The data format consists of screen information (screen management information), screen information C (next screen selection information), and screen information (screen information), and labels 31, 41, .
51 and length indication codes 32, 42.52 indicating the data length are added. Among these information, 8 screen information is labeled 51. Length indicator 52, screen control information 53, header information 54, and telesoftware information 55
The telesoftware information 55 itself further includes a telesoftware operation code 551 as an identifier, a length identification code 552 representing the data length, and screen information 553-, ll- to 553- as information block components.
It is composed of n. When transferred as telesoftware data format, the information inside the telesoftware is not subject to PLPS check on the Videotex communication network, and therefore, multiple screen information is transferred as a whole via the Videotex communication network to the subscriber terminal 4. It can be transferred to the other side.

When the subscriber terminal 4 receives information from the information center 1, it immediately stores it in the auxiliary storage device 5, but until now it has not been possible to store it in the auxiliary storage device 5 when receiving telesoftware information. This technique is easier than the above technique and does not require any special explanation.

Now, after receiving and storing all the information, the subscriber terminal 4 disconnects from the information center 1 and searches for the screen information stored in the auxiliary storage device @5 in offline mode. A plurality of pieces of screen information are stored in the storage device 5 in an integrated form, and from the time they were stored in the information center 1, each piece of screen information has been given a length indicator indicating its size. Therefore, using this information, it is easy to retrieve each screen information from the auxiliary storage device 5 using the conventional technology. The screen information retrieved from the auxiliary storage device @5 is processed into a visible format by the CAPTAIN PLPS-compliant processing function of the subscriber terminal 4, in the same way as if it were directly transferred from the information center 1. The user can recognize the screen information on the auxiliary storage device 5 as visible information every time he or she makes a search request.

[Effects of the Invention] As explained above, according to the present invention, the connected line is not held on hold for searching but is used only for information transfer, and line usage efficiency is greatly improved. There is an effect like this.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the basic operating procedure when performing a batch search of multiple pieces of information according to the present invention, Fig. 2 is a diagram showing the general system configuration of the Videotex system, and Fig. 3 is a diagram showing information block components. FIG. 4 is a diagram illustrating a screen information selection method by inputting a screen number, and FIG. 5 is a diagram illustrating the format of telesoftware data information. . 1... Information center, 2... Videotex communication network, 3
. . . telephone, 4 . . subscriber terminal, 5 . . . auxiliary storage device. Agent Patent Attorney Tadashi Akimoto Jitsu 1 Figure 2 Figure 3 Hang

Claims (1)

[Claims] 1. When a subscriber terminal makes a search request for screen information to an information center that holds various databases via the Videotex communication network, if there is a batch search request for multiple image information from the subscriber terminal, the information From the center, the multiple screen information is transferred and stored as integrated information to the calling subscriber terminal via the Videotex communication network in a data format that can be transferred transparently within the network, and then the information is transferred in offline mode at any time. A multiple information batch search method characterized by being read out and displayed on the terminal.