JPS59181868A - Connection response system - Google Patents

Abstract

PURPOSE:To confirm whether or not a terminal device is connected correctly to a desired center prior to data input by informing whether or not a computer center and the terminal device are connected to the terminal device from the center side. CONSTITUTION:A call signal enters an AA type controller 10 of the computer center side from a telephone set circuit 421 via a network control circuit 411, a switch S11 and an exchange 60. When this call signal is detected by the network control circuit 110, a switch S20 is changed over immediately to the position of a voice synthesis circuit 120 and the synthesis circuit 120 transmits the name of center to the terminal device. On the other hand, since a voice signal from the center is received by the telephone set circuit 421 at the terminal device, the operator of the terminal device can hear the name of center and a message such as ''Your terminal device is connected already'' when the terminal device is connected to the center and a message such as ''The center is failed'' when no connection is made from a receiver.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a data communication system using a public line, and in particular, it is possible to determine whether or not a computer center and a terminal are connected from a computer center side network control device to a terminal. Concerning the connection response method for notifying.

(2) Technical background Telecommunications began with the telegraph, and then with the invention of the telephone,
With the advent of electroacoustic exchange, the invention of the vacuum tube and the 1-Landisk, and the development of applied technology, public telephone lines have become widespread. Furthermore, in the information society where intelligence creates value, the demands on communication networks are becoming more diverse and sophisticated, with the expansion of public lines, as well as increasing demands for facsimile communication and data communication. A simple communication system is desired.

(3) Prior art and problems In the conventional data communication system, when connecting from the terminal side to the computer center, after sending a dial signal from the terminal side to the n1 computer center, the terminal side actually sends the data. There is a drawback that it is not possible to confirm whether or not the connection has been made correctly to the computer center to which you wish to connect until the response is received.Furthermore, even if the computer center is in an abnormal state and cannot be used, the message is sent. It can only be confirmed by receiving a response.

(4) Purpose of the Invention The present invention solves the above-mentioned problems, and its purpose is to provide a connection in which a network control device on the computer center side notifies the terminal whether or not the computer center and the terminal are connected. The objective is to provide a response method.

(4) Structure of the Invention The present invention is characterized by a data communication system that connects a terminal and a computer center using a public communication line. a computer center side that includes a voice synthesis circuit for synthesizing the voice synthesis circuit, a network control circuit for connecting to the voice synthesis circuit, a voice amplification circuit for amplifying the voice signal, a speaker for connecting to the voice amplification circuit, a switch for switching signals, etc. This connection response method is characterized by notifying a terminal operator whether or not the connection is made to a desired computer center by using a network control device or a terminal-side network control device.

(6) Examples of the Invention The present invention will be described in detail below with reference to the drawings. FIG. 1 shows a block diagram when a MAA network control device is used on the terminal side of the present invention.

The terminal device 51 is connected to a modem 21, and the modem 21 is connected to a MAA network control device 41, and the MAA network control device 41 connects to the AA type silk ( The AAA network control device 10 is connected to a communication control device 30 via a modem device 20, and the communication control device 30 is connected directly to the communication control device 30.
It is also connected.

The MAA network control device includes a telephone circuit 421, a network control circuit 411 dedicated to incoming calls connected to the telephone circuit 121, and a network control circuit 411 connected to the exchange 60 or the switching device 21. It consists of a switch Sll for selecting one.

Further, the AAA network control device includes a speech synthesis circuit 120 and a network control circuit 110 connected to the speech synthesis circuit 120.
and the connection with the exchanger 60 is the speech synthesis circuit 1 described in II.
20 or the network control circuit 110, and a switch S10 for selecting whether the switch 320 or the modem 20 is connected to the exchange 60.

FIG. 1 shows the initial state. After transmitting the dial signal to the line, the telephone circuit 421 on the terminal side waits for a response from the pointer center. Dial signal ■11 The calling signal is transmitted from the telephone circuit 421 through the network control circuit 411, the switch S11, and the exchange 60 in turn to A on the calculation center side.
AA network control device 1 (enters 1; that is, switches 310, 3
20 into the network control circuit 110. When this calling signal is detected by the network control circuit 110, the switch S2 is immediately turned off.
0 to speech synthesis circuit 120 +! The voice synthesis circuit 120 switches to Ill and transmits the center name to the terminal side.

On the other hand, the network control circuit 1101 transmits a call indication signal CI to the modem 20, and monitors whether or not the line connection command signal CMI, ON, is being transmitted from the modem 20 to the network control circuit 110. C within a certain time
If ML ON is detected, a message such as ``Connected'' is sent, and if not detected, a message such as ``There is a problem with the center'' is sent to the terminal side by the voice synthesis circuit 120.

If CML ON is detected normally, the switch 310
is switched to the modem 20 side. On the other hand, on the terminal side, the operator on the terminal side receives the voice signal from the center through the telephone circuit 421, and if it is connected to the center, it will make the connection with the center name. You can hear messages such as "This is what you want" from the receiver.

FIG. 2 shows a block diagram when an AAA network control device is used on the 6j:ij terminal side of the present invention.

In FIG. 2, it is the MAA network control device on the terminal side in FIG. 1 or the AA type side control device. The AA type fine control system shown in Figure 2 has an additional switch 6 in addition to the ΔΔ type network control system shown in Figure 1.
0 and switch S11. Switch S21. switch S31
The audio amplifying circuit 131 is connected to the audio amplifying circuit 131 via the audio amplifying circuit 131, and the speaker 141 is connected to the audio amplifying circuit 131.

ΔΔ type network control device 11 on the terminal side and ΔA on the computer center side
The Type Navy 1 control device 10 is the same.

FIG. 2 shows the initial state, in which the terminal side AAA network control device 11
The orientations of the switch S31 and the switch S30 of the AA type network control device on the computer center side are different from each other. switch S3] is on the audio amplification circuit 131 side, and switch S30 is on the audio synthesis circuit 120 side. Here, the switch 531 is on the voice synthesis circuit 120 side. Here, the switch 331 is fixedly set on the audio amplification circuit 131 side.

After transmitting the dial signal to the line, the network control circuit 111 on the terminal side switches the switch 321 to the voice amplification circuit 131 side and waits for a response from the center.

The computer center transmits the call signal from the terminal side to the network control circuit 11.
Detected with 0. The following operations on the d1 computer center side are the same as those shown in FIG.

On the other hand, on the terminal side, the audio signal from the computer center is sent to the switch S11. Switch S21. The signal is amplified by the audio amplification circuit 131 via the switch 331 and outputted by the speaker 141. After the network control circuit 111 transmits a connection completion signal DSC to the terminal device 51 and the modulation/demodulation device 21, and further detects the line connection command signal CML ON transmitted from the modulation/demodulation device 21 to the network control circuit 111, the network control circuit 111 Switch Sll is switched to the modem 21 side.

As described above, according to the present invention, the operator on the terminal side can confirm whether or not the desired computer center is correctly connected before inputting a take, and if the computer center is in an abnormal state and cannot be used, You can receive the notification directly.

FIG. 3 shows a block diagram of an application example in which an AA type fine control device is used on the terminal side of the present invention.

In the embodiment of the present invention, messages such as "Connected" or "Center abnormality" are notified by voice on the terminal side, but in the application example, the abnormality occurs when the computer center side is abnormal. Notify you by voice. A connection response transmitting/receiving circuit 150 is inserted between the network control circuit 110 and the voice synthesis circuit 120 of the AAA network control device shown in FIG. ing. The other parts are the same as in FIG.

FIG. 3 shows the initial state. After transmitting the dial signal to the line, the assembly control circuit 1 on the terminal side switches the switch S2L to the connection response receiving circuit 151 side and waits for a response from the computer center.

The computer center transmits the call signal from the terminal side to the network control circuit 11.
Detected with 0. The operation G on the center side is the same as that shown in FIG. However, it is not the audio to the terminal side,
The connection response transmitting/receiving circuit 150 transmits a connection response signal in the form of a code or message indicating whether or not the network control circuit 110 has detected the line connection command signal CM L ON from the modem 20 at a certain time, that is, whether or not the connection has been established. do.

On the other hand, on the terminal side, a connection response transmission/reception circuit 151 receives a connection response from the computer center. Connection response signal B
Speech synthesis circuit 121 only when the computer center indicates an abnormality.
iJL synthesizes the prepared message II' and outputs it by the audio amplification circuit 131 and speaker 141.
Notify the center by voice of a message such as ``No error''.

In the application example described above, an abnormality on the autopsy center side is notified by voice using a voice synthesis circuit, a voice amplification circuit, and a speaker, but this can be notified by other means such as a buzzer or a lamp display.

(7) Effects of the Invention As described above, according to the present invention, in a take communication system using a public line, the operator on the terminal side can check whether or not the terminal is correctly connected to the terminal to which it wishes to connect. You can confirm it by voice before inserting it.

Another advantage is that if a calculation center is in an abnormal state and cannot be used, you can be notified immediately.

[Brief explanation of drawings]

Figure 1 shows 611. of Aζ invention. Figure 2 is a block diagram when an MA type t121 control device is used in an undeveloped system, Figure 2 is a block diagram when an AAA network controller is used at the 011''4 terminal side of the present invention, and Figure 3 is a block diagram when an AAA network control device is used at the 011"4 terminal side of the present invention. The block diagrams of application examples when using the undeveloped type A silk 1 control device on the side are shown. IO...Computer center side AA type tll'1 control device 11
...Terminal side AA type network control device 20...Computer center side modem device 21...Terminal side modem device 30...Communication control device 4
1... MA type network control device 51... Terminal device
60...Switchboard 110.111...Network control circuit 120,121...Speech synthesis circuit 1
30,131...Audio amplification circuit 140,141
... Speaker 150, 151 ... Connection response receiving circuit 411 ... Incoming call dedicated network control circuit 421.
・Telephone circuit

Claims (1)

[Claims] +'yl: A data communication system that connects a terminal and a computer center using a public communication line, and a voice synthesis circuit that synthesizes a message using voice when connecting the terminal to the 1itWc machine center via a network control device; a computer center side j' having a network control circuit connected to the voice synthesis circuit, a voice amplification circuit for amplifying voice signals, a speaker connected to the voice amplification circuit, a switch for switching signals, etc.
A connection response method characterized in that each time an Oka control device or a terminal-side network control device is used, a terminal operator is notified whether or not the 611 machine center to which connection is desired is connected.