JPS6216595B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a multifunctional telephone capable of simultaneously transmitting and receiving telephone calls and data signals, and to which another terminal (for example, a facsimile device) can be added. Recently, for the convenience of telephone users, calls and
Telephones capable of simultaneously transmitting and receiving data signals, such as telephones with printers, are being developed and put into practical use. Such telephones generally transmit and receive speech and data signals over separate lines, and their line-side interfaces differ from known telephones. Therefore, it is not possible to connect to existing terminals (for example, facsimile machines) that have network control equipment compatible with the line-side interface of known telephones, and in order to be able to use them, Since a well-known telephone must be installed separately, it is not economical and wastes installation space, and it is also troublesome for the user to have to use both telephones separately depending on the purpose. be. SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a multifunctional telephone that can be used to add and connect other existing terminals. The multi-function telephone of the present invention is housed in an exchange through a call signal line and a data signal, and has the function of simultaneously transmitting and receiving a call signal and a data signal through each of the above-mentioned signal lines. The multi-function control circuit receives the data signal sent from the exchange through the switch and sends a start signal to other existing terminals.
Alternatively, by providing a telephone control circuit having means for receiving an activation signal from the terminal and switching the call signal line to the terminal side, it is possible to make the terminal perform the prescribed communication, and also to allow the terminal to perform the required communication through the data signal line. It is capable of transmitting, receiving, and recording data signals. In addition to communicating with the other terminals mentioned above, data related to the communication (e.g., call origination/reception time, communication partner, communication time, communication end time, etc.) is transmitted and received using the data signal transmission/reception function of the multifunction telephone. The aim is to improve the functionality of other existing terminals by making it possible to record data at the same time. Embodiments of the present invention will be described below based on the drawings. FIG. 1 is a block diagram of an embodiment of a multifunction telephone according to the present invention, and FIG. 2 is a partially detailed block diagram of the multifunction control circuit thereof. Here, MFT is the multifunction telephone, NET is the telephone circuit network, HS is the handset, CNT is the multifunction control circuit, PNT is the printer, POW
is the power supply circuit, T1 and T2 are the same transformer, K
is the same electric key, L is the light emitting diode for the same display,
TC is the telephone control circuit. In the telephone control circuit TC, A and a1,
a2 and a3 are monitoring relays and their contacts; R, r1, and r2 are signal relays and their contacts;
C1 and C2 are capacitors, B is a relay power supply,
PT is a power transformer, and AC is a low-frequency alternating current power supply. INTF is the interface circuit in the exchange, T3 and T4 are its transformers, BAT is the battery for the exchange, and L1 and L2 are the multifunction telephones.
Call signal between MFT and interface circuit INTF,
This is a line related to data signals. In addition, FAX refers to a facsimile device related to an existing other terminal, FCNT refers to its control circuit, T refers to the same transformer, RR and rr refer to the same signal receiving relay and its contacts, CML and cml refer to the same starting relay and Its contacts, C3 and C4, are the same capacitors,
D is the same diode. Furthermore, PIA is a parallel input/output circuit, and ACIA is a parallel input/output circuit.
In the serial input/output circuit, CPU is a microprocessor, MEM is a memory, S-BUS is a system bus, and MODEM is a modem. Therefore, the telephone control circuit TC receives the data signal sent from the exchange side through the line L2 related to the data signal line, and the multi-function control circuit CNT
A signal relay R according to a means for sending an activation signal to another existing terminal under the control of the terminal, or receiving an activation signal from the terminal, and switching the line L1 related to the call signal line to the terminal side. , monitoring relay A
The present invention relates to a telephone control circuit equipped with a telephone control circuit. The multifunction telephone MFT normally transmits its voice signals to the handset HS - telephone network NET - transformer T1 -
The audio signal is sent to the exchange through the line L1-transformer T3, and the voice signal is received from the exchange through the opposite route, thereby making the desired call. The data signal is multifunctional control circuit CNT - transformer T2 - line L
The data signal from the exchange side passes through the path of 2-transformer T4 in both directions, and the multi-function control circuit CNT ignites the light emitting diode L or prints necessary data (e.g. communication time, etc.) to the printer PNT. urge Further, a necessary data signal (for example, a dial signal, etc.) depending on the disconnected state of the telephone key K can be sent to the exchange side. Therefore, in FIG. 2, which shows an example of a full-duplex data communication circuit constructed using a well-known technique,
The input/output signals of the parallel input/output circuit PIA of the multi-function control circuit CNT are transferred to the microprocessor CPU, memory
A circuit consisting of MEM that converts (or inversely converts) a specific data string to the serial input/output circuit ACIA.
- Modem MODEM - Transformer T2 - Line L2 - Transformer 4 circuit, which can transmit to (or receive from) the interface INTF of the other device. In this way, necessary data signals can be transmitted and received as well as call signals. Next, the operation when using another terminal (in this embodiment, a facsimile device FAX) provided as an accessory to the multi-function telephone MFT will be explained. First, a case where a connection request is made from the exchange side to the facsimile device FAX will be explained. The interface circuit INTF is, in a well-known manner,
Multi-function control circuit through line L2 and transformer T2
A data signal indicating a connection request to the facsimile device FAX is sent to the CNT. When the multi-function control circuit CNT receives the data signal, it causes the printer PNT to record necessary data, such as the time of arrival, and controls the signal relay R to repeatedly operate for 1 second and recover for 2 seconds. This continues until monitoring relay A operates. That is, when the signal relay R operates, its contacts r1 and r2 close, so the AC signal (for example, 50Hz) supplied from the AC power source AC to the power transformer PT is transmitted to the power transformer PT - contact r2 - signal receiving relay.
RR-Diode D-Capacitor C3-Contact cml
- Since the signal is supplied to the signal receiving relay RR through the path of contact r1 and power transformer PT,
Signal reception relay RR operates. This closes that contact rr and the control circuit
FCNT is activated, and the control circuit FCNT recognizes the activation and operates activation relay CML. When starting relay CML operates and signal relay R is restored, earth-monitoring relay A (primary winding)-contact r2
- Transformer T - Contact cml - Contact R1 - Monitoring relay A (secondary winding) - Relay power supply B - Earth path (DC loop) is closed, and monitoring relay A is activated. When the monitoring relay A operates, its contact a3 closes, so the multi-function control circuit CNT recognizes the response from the facsimile device FAX and prevents the signal relay R from operating thereafter. As a result, line L1 - transformer T1 - contacts a1, a2 - capacitors C1, C2 - contacts r1, r2 - contacts cml
- Since the communication path of the transformer T is closed, communication between the facsimile device FAX and the other facsimile device (not shown) connected to the end of the line L1 is performed in a well-known manner. When the communication is completed, this fact is transmitted from the interface circuit INTF connected to the end of the line L2 to the multifunction control circuit CNT. On the other hand, the facsimile device FAX learns that the communication has ended using a well-known method and disconnects the DC loop, so that the monitoring relay A is restored. When the multi-function control circuit CNT confirms that these two conditions are met, it starts the printer using a well-known method.
Make PNT print the end time of communication. Next, a case in which the facsimile device FAX requests connection to the line L1 will be explained. When the multi-function telephone MFT sends out a dial signal using a well-known method and is connected to the other party's terminal (not shown), it first sends a dial signal to the printer via the above-mentioned route.
Print the calling time and dialed number on the PNT. On the other hand, in the facsimile device FAX, its control circuit FCNT operates the activation relay CML. As a result, earth-monitoring relay A (primary winding)-contact r2
- Transformer T - contact cml - contact r1 - monitoring relay A (secondary winding) - relay power supply B Monitoring relay A operates on the path. When monitoring relay A operates, its contacts a1 and a
2. Since a3 is closed, this is indicated by the multi-function control circuit.
CNT, and is also transmitted to the line L1 and the facsimile device through the same route as in the operation example described above.
A FAX is connected, and communication is performed with the other party's terminal (not shown) via the line L1. When the communication ends, the control circuit FCNT restores the starting relay CML, so as in the above case,
The DC loop is broken and monitoring relay A is restored. As a result, the multi-function control circuit CNT sends a data signal indicating a restoration instruction to the line L2 using a well-known method, the devices after the interface circuit INTF are restored using a well-known method, and the printer PNT receives a communication signal. Print the end time. Note that the operation when the telephone control circuit TC is powered off will be explained. In the telephone control circuit TC, when the AC power supply AC is cut off, since the relay power supply B is rectified and supplied from the AC power supply AC, the power supply to the monitoring relay A is cut off, and the monitoring relay A is restored. As a result, the connection with the fax machine FAX is disconnected, but the path of telephone circuit network NET - contacts a1, a2 - transformer T1 - line L1 - transformer T3 can be secured, so the predetermined connection of multifunction telephone MFT can be secured. It does not affect functionality in any way. Please note that the communication was interrupted due to the multi-function control circuit.
CNT and information to that effect is printed on the printer PNT.
will be printed out. In addition, in the above embodiment, the power supply circuit POW
The input is from the battery BAT for the exchange to the line L
1. Multi-function telephone provided through L2
The power required for each part within the MFT is converted and supplied, but depending on the circumstances, a commercial power source within the house may be used for this purpose. As described in detail above, according to the present invention, it is possible to add and connect other existing terminals to a multi-function telephone and make effective use of them. (data recording function) can improve the convenience, so the combination of the two can have a significant effect on the economical and overall improvement of in-home services.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of a multifunction telephone according to the present invention, and FIG. 2 is a partially detailed block diagram of the multifunction control circuit thereof. MFT...Multi-function telephone, NET...Telephone circuit network, HS...Handset, CNT...Multi-function control circuit, PNT...Printer, POW...Power supply circuit, T
1, T2...transformer, K...key, L...light emitting diode, TC...telephone control circuit, A and a1, a2, a3...monitoring relay and its contacts, R and r1, r2...signal relay and Its contacts, C1, C2...capacitor, B...relay power supply, PT...power transformer, AC...alternating current power supply, INTF...interface circuit, T3, T4
...Transformer, BAT...Battery, L1, L2...
Railroads, FAX... Fax machine, FCNT...
Control circuit, T...transformer, RR and rr...signal receiving relay and its contacts, CML and cml...
...Start relay and its contacts, C3, C4...Capacitor, D...Diode, PIA...Parallel input/output circuit, ACIA...Series input/output circuit, CPU...Microprocessor, MEM...Memory, S. BUS
...System bus, MODEM...Modem.

Claims (1)

[Claims] 1. In a multifunction telephone that is housed in an exchange through a voice signal line and a data signal line, and has the function of simultaneously transmitting and receiving voice signals and data signals through each of the above signal lines, Under the control of a multi-function control circuit that receives an incoming data signal, a start signal is sent to another existing terminal, or a start signal is received from the terminal, and the call signal line is switched to the terminal side. 1. A multifunctional telephone, characterized in that by providing a telephone control circuit having means, the terminal can perform predetermined communications, and can also transmit, receive, and record necessary data signals through a data signal line.