JPS59161986A - Information transmitting system for video tex - Google Patents

Abstract

PURPOSE:To offer the multi-address picture information and at the same time to obtain the still picture information of high efficiency even in a multi-address service mode, by delivering the output of an information output part to a circuit control part after distributing it to plural outputs. CONSTITUTION:An information storing/retrieving part 1 retrieves in turn the screen information to be delivered in multi-address and sends these screen information to an information output part 2n which is capable of multi-address output. The part 2n converts the supplied screen information into signals which can be transmitted to a telephone line. Then these signals are distributed to plural circuits through a distribution output part 5 and then delivered to a circuit control part 3. While a terminal 7 designates the circuit to be connected to the part 5 when receiving the multi-address service for incoming and therefore can receive the screen information of the multi-address service.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an information transmission system in Videotex, and more particularly, to an information transmission system in Videotex equipped with a bulletin service function.

[Prior art]

Conventional Videotex, like CApTAIN/Stem, searches for and provides still screen information in response to individual terminal requests. However, in some areas of Videotex usage, the same screen information may be requested by multiple terminals at the same time. In this case, even though the same screen information is output, the same screen information is searched many times by the information storage detection unit in response to requests from each terminal.
Moreover, since each information output section of the videotex is occupied, there is a drawback that the efficiency of use of the information storage detection section and the information output section is reduced.

[Purpose of the invention]

An object of the present invention is to provide an information transmission system in videotex that can efficiently provide still screen information even during the above-mentioned broadcast service.

[Summary of the invention]

The information transmission system in Videotex of the present invention is comprised of an information storage and search unit that stores and searches screen information, an information output unit that outputs screen information, and a line control unit that controls connection to a telephone line. , a distribution output section is provided which distributes the output of the information output section into a plurality of outputs and outputs them to the line control section, thereby making it possible to provide screen information in a broadcast manner.

[Embodiments of the invention]

The present invention will be described in more detail below with reference to embodiments shown in the accompanying drawings. FIG. 1 is a block diagram showing one embodiment of the present invention. The illustrated Videotex device includes an information storage and search section 1, information output H'B2a to 2n, and a line control section 5.
is basically a +'R configuration, and is connected to each terminal 7 via a telephone line 4 and a transmission line 6. In this embodiment, the distribution output section 5 is further connected to the information output section 27L, and the plurality of distributed and output signal lines are connected to the line 11''.

Next, the operation of each part will be explained. The information storage and search section 1 sequentially searches for image information to be output as a circular, and sends it to the information output section 2n capable of outputting a circular. The information output section 27L converts the screen information into a signal that can be transmitted over a telephone line, and the single distribution output section 5 further distributes this signal a plurality of times and outputs it to the line control section 6.

On the other hand, when receiving the broadcast service, the terminal 7 can receive the screen 1n report of the broadcast service by specifying the line connected to the distribution output unit 5 and receiving the call.

FIG. 2 shows an example of the screen information search order of the information storage and search section 1 in the broadcast service.

Al-A1, Bs-B1, Cr-Ci, DI-D
Each i is a unit of mm information. Each information group A1 to Ai, B+-BiCl(' i , D l-D
By transmitting the screen information for each screen from i to screen for each screen, screen information with an identification code attached at the beginning is sent to each terminal 7 via each transmission path 6, as shown in FIG. As a result, by specifying the identification code of each terminal 7, which information group A1
Screen information of ~Ai, B+~Bi, CI-Ci, and D+~D can also be selectively presented. Therefore, one information output unit 2n can send screen information to a plurality of terminals 7, and simultaneously send a plurality of information groups At-A1. BI~Bi,C
It becomes possible to transmit sii, I)+ to Db.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, by providing a distribution output section, it becomes possible to simultaneously output the output of one information output section to a plurality of terminals. Furthermore, it is also possible to transmit the screen information of a plurality of information groups by attaching identification/1χJ numbers.

Therefore, as a whole, the information storage and retrieval unit and the information output; II
(O) The effect of significantly improving fJ efficiency is noticeable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 shows an example of the search order for screen information to be output as a circular in the information storage and search section shown in FIG. FIG. 2 is a diagram showing an example of the transmission order of screen IN information sent to each terminal in FIG. 1; DESCRIPTION OF SYMBOLS 1... Information storage search unit, 2α-2n... Information output unit, 3... Line control unit, 4... Telephone network, 5...
- distribution output section, 6... transmission line; 7...Terminal.

Claims (2)

[Claims] (1) In Videotex, which consists of an information storage and search unit that stores and searches screen information, an information output unit that outputs screen information, and a line control unit that controls connection to the telephone network, the information output unit has multiple outputs. An information transmission system in Videotex, characterized in that it is provided with a distribution output unit that distributes the output to the line control unit, thereby making it possible to provide screen information in a circular manner. (2) The information storage and search unit sequentially searches for screens from a plurality of screen information groups, attaches an identification number of the screen information group to each screen information and outputs it to the distribution output unit, and each terminal uses the above-mentioned identification number. An information transmission system in Videotex according to claim 1, characterized in that by specifying a subtitle, only screen information of a specified screen information group is selectively displayed.