JPS6319950A - Information communication equipment - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an information communication device in which the communication function of an information center device makes it possible to construct an inexpensive and economical system.

BACKGROUND ART FIG. 2 shows a configuration diagram of a system including an information center device with a conventional communication function. In FIG. 2, 1A, 1B,
1c is a communication terminal, 2 is a telephone network such as a public telephone network or a private telephone network, 3A, 3B, 3C are line connection devices, 4A, 4B,
4C is the modem, 6A.

6B, EC is the input/output control unit, 6 is the central processing unit (CPU
), 7 is an information file section. Reference numeral 8 denotes an information center device consisting of each of the constituent elements 3A, 3B, . . . , 7.

Next, the operation will be explained. A user connects to the information center device 8 via the telephone network 2 using the dial function of the communication terminal 1A (or 1B, 1c). The information center device 8 captures the line of the telephone network 2 by its line connection device 3A (or 3B, 3C), and connects the communication terminal 1A (or 1
'B, 1c) and transmits the request signal from the communication terminal to the line connection device 3A (or 3B).

3C), the central processing unit 6 receives and discriminates the information via the modem 4A (or 4B, 4G) and input/output control unit 5A (or 5B, 5C), and extracts information corresponding to the request from the information file unit 7. , this time the information is sent to the communication terminal via the reverse route.

The communication terminal 1A (or 1B, IC) receives and decodes this information and displays it.

Problems to be Solved by the Invention In the conventional configuration example, there are the following problems regarding communication processing. As mentioned above, in conversational systems that provide information based on requests from the terminal side, it is rare for signals to be constantly sent and received in both directions between the terminal and the central processing unit (CPU) (full-duplex communication). Yes, it also requires time to look at the screen displayed on the terminal side, and although it is connected, there is no information exchange.In other words, there are many periods when the signal is suspended.Also, in the captain system, up and down Processing is also troublesome due to differences in signal synchronization methods and transmission speeds.

If the number of terminals that can be connected at the same time (in other words, the number of lines that can be connected at the same time) is small, this will not be much of a problem, but as the number of lines increases, the sum of the signal pause periods will increase, and the input/output control unit will be connected to each line. In order to solve the above-mentioned problems, the present invention divides the functions of the input/output control section, and By dividing the system into an input control section that processes upstream (received) signals all at once, an output control section that has fewer lines than the number of lines that can be connected simultaneously, and a selection/switching circuit, it efficiently processes input and output signals. This made it possible to reduce costs.

According to the above-mentioned means, the present invention collects the uplink signals received by the modem section at once or into several groups, and performs the discrimination processing of the uplink received signals in one input control section, while at the same time distinguishing between the uplink signals and the downlink signals that need to be transmitted. , one of the plurality of installed output control units that is on standby is driven to output a downlink signal.

At this time, the selection/switching circuit installed between this output control section and the modem is controlled to supply the output of the output control section to the modem to be sent (connected to the terminal that made the request). Embodiment 0 Transmitting to a Terminal FIG. 1 shows a configuration diagram of a system including an information center device according to an embodiment of the present invention. Components similar to those in FIG. 2 of the conventional example are given the same numbers. 09 is an input control section, 10
is a selection/switching circuit, and 11A and 11B are output control units.Next, the operation will be explained.
The communication terminal is connected via the . Therefore, the line connection devices 3A and 3B.

3C and modems 4A, 4E, and 4C are all connected. Here, the uplink request signal from each terminal is 22 times #
j! The signals are received by modems 4A, 4B, and 4C via connection devices 3A, 3B, and 3C, respectively.

These upstream signals are collectively supplied to the input control unit 9, and are subjected to discrimination processing by this and the central processing unit 6. Then, only when it is necessary to send information to the communication terminal, the central processing unit 6 pulls out information from the information file section 7, and outputs the information from the output control section 11A.
Alternatively, it is output to one of the 11Bs that is not actually in operation but on standby. Prior to this, the central processing unit 6 selects the modem unit 4A, 4B, or 4 which is connected to the terminal to which the output signal of the output control unit 11A or 11B is to be transmitted.
The selection/switching circuit 1o is controlled in order to supply the signal to C.

In this way, the downlink information is transmitted to the terminal side via the modem specified by the selection/switching circuit, the line connection device, and the telephone network 2. When the transmission is completed, the output control section 11A (or 11B) is released and returns to standby mode.

That is, the output control units 11A and 11B are driven only when it is necessary to transmit information to the connected terminal, and the selection/switching circuit 10 supplies the output to the corresponding modem 4.

Therefore, the same number of output control units is not necessarily required for the maximum number of line connections (three lines in the embodiment) (the number of line connections is two in the embodiment).

Note that in this embodiment, the maximum number of line connections is 3, and the input control unit 1. Although the configuration example of the output control unit 2 has been described, the same applies to other combinations.0 Effects of the Invention As described above, the information center device of the present invention can be constructed more economically at a lower cost. .

In other words, even when connected to the terminal side, there are many idle periods (idling) compared to the period when information is actually sent to the terminal, and it is not necessary to prepare the same number of output control units as the maximum number of terminals connected simultaneously. This is because the connection between the output control section and the modem is switched in advance using a selection/switching circuit, so that the idle link time of the output control section is shortened and maximum output operation is performed. Furthermore, the effect of the above invention becomes more pronounced as the maximum number of simultaneous terminal connections increases, since the output control section can be averaged, and the economic effect becomes even greater compared to the conventional system.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram including an information communication device according to an embodiment of the present invention, and FIG. 2 is a system configuration diagram including a conventional information communication device. 1A to 1C...Terminal, 2...Telephone network,
3A-3C...Line connection device, 4A-4C...
...Modem, 5A to 6C ... Input/output control section, 6 ... Central processing unit, 7 ... Information file section, 8 ... Information Center device, 9...
...Input control section, 1o...Selection/switching circuit, 1
1A to 11B... Output control section.

Claims (1)

[Claims] It has a function of connecting a terminal device and an information center device, transmitting information corresponding to a request from the terminal device from the information center device, and receiving the transmitted information on the terminal device side, and The center device includes a plurality of line connection devices and modems that enable connection to a plurality of terminals at the same time, an input control unit that intensively processes uplink signals from each modem, and a control unit for the line connection devices and modems. Selection and switching of the output control unit configured to be smaller than the number of pairs, the central processing unit, the information file unit, and the modem that is located between the output control unit and the modem and supplies the output of the output control unit. The switching circuit selectively operates the standby output control section only during the time when information is actually transmitted to the connected terminal device, and this output signal is further transmitted to the selected terminal device.
An information communication device characterized in that the central processing unit controls the switching circuit to connect and supply a modem facing a terminal device to which transmission is to be made.