JPH0759103B2 - Digital button telephone device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital key telephone device for performing data communication by a modem via an external line.

2. Description of the Related Art FIG. 3 shows a conventional digital button telephone device, especially a main device, which performs data communication (modem pool) via an external line by a modem, and 1 is used to detect an incoming call to the external line and form a call. External line interface (I / F) circuit for sending dial signals, 2 is a hybrid circuit for converting a call from 2 lines to 4 lines and 4 lines to 2 lines, and 3a and 3b are digital signals for analog signals , A / D conversion circuits for converting analog signals into digital signals, 4a and 4b are respectively A
Sending D conversion circuit 3a, or sends a digital signal to a predetermined time slot of the call for highways HW ₁ from 3b, and a digital signal of a predetermined time slot of the data of the call for highways HW ₁ AD conversion circuit 3a, and 3b Highway I /
It is an F circuit.

The external line I / F circuit 1, the hybrid circuit 2, the AD conversion circuit 3a, and the highway I / F circuit 4a are provided corresponding to the number of external lines.

Further, 5a, 5b ~ are highway control I / F circuits for transmitting and receiving voice signals and data communication signals to predetermined time slots of the highway HW ₁ for communication and the highway HW ₂ for data, respectively, and 6a is highway control The voice signal and the data communication signal from the I / F circuit 5a and the control signal from the microcomputer (NPU) 9 are serial-converted and sent to the digital button telephone TEL and the personal computer P, and also the digital button telephone TEL and the personal computer. A data communication control I / F circuit for converting the above signal from P to parallel and transmitting it to the highway control I / F circuit 5a and NPU9. 6b to 6 are voice signal like the data communication control I / F circuit 6a. , A data communication control I / F circuit for converting a data communication signal and a control signal into serial and parallel.

7 is the signal from the data communication control I / F circuit 6b RSC-232C
The modem I / F circuit 8 which converts the signal to the modem device M and sends it to the modem device M, or the RSC-232C signal from the modem device M to the original signal and sends it to the data communication control I / F circuit 6b A single telephone I / F circuit for connecting a telephone, and a modem device M is connected to the single telephone I / F circuit 8.

Next, the operation of the above-mentioned conventional example will be described for the case where data communication is performed from the personal computer P via an external line.

An extension number of the modem device M (for example, the extension number "1" is set via a dial key (not shown) of the digital button telephone.
1 ”) and a number for capturing an outside line (for example, the number“ 9 ”
31 ”) and the recipient's phone number“ × to × ”are entered,
The key data is the data communication control I / F circuit 6a of the main unit.
Sent to NPU9 via.

NPU9 is a digital button telephone TE
The L and the modem device M are connected, and the data of the number “931 × ˜ ×” is sent to the modem device M via the data communication control I / F circuit 6b and the modem I / F circuit 7.

This data is sent from the modem device M to the single telephone I / F circuit 8
Is sent to the NPU 9 via the NPU 9, and the NPU 9 controls the outside line I / F circuit 1 by this data, catches the outside line “1”, and sends out the dial signal of the dial number “× to ×”.

Next, when the data communication key (not shown) of the digital button telephone TEL is pressed, the key data is sent to the NPU 9 of the main unit through the same route as described above, and the NPU 9 sets the data communication control I / F circuits 6a and 6b. When controlled, the personal computer P enters a data communication state via the modem device M and the outside line "1".

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional digital button telephone device, when data communication is performed from the personal computer P via an external line, the operator must acquire the external line capture number from the digital button telephone and the modem device M. Of the digital key telephone TEL, the operator must move from the position of the digital key telephone TEL, the personal computer P to the position of the modem device M in order to monitor the data communication state. There is a problem that the operation is inconvenient.

In view of the above problems, it is an object of the present invention to provide a digital button telephone device that can improve operability when performing data communication.

Means for Solving the Problems In order to solve the above problems, according to the present invention, by incorporating a modem circuit in an external line circuit section, the other side is called without dialing an extension number, and during data communication, the other side is called. And a data communication monitor path from the other party to the digital key telephone set.

With the above-described configuration, the present invention enables data communication without dialing an extension number, and since the data communication state can be monitored by a digital key telephone, operability can be improved.

Embodiments Embodiments of the present invention will be described below with reference to the drawings. First
FIG. 1 is a block diagram showing an embodiment of a digital button telephone device according to the present invention, particularly a main device, and FIG. 2 is a block diagram showing an embodiment of a digital button telephone TEL connected to the main device of FIG. In FIG. 1, the same components as those shown in FIG. 3 are designated by the same reference numerals.

In FIG. 1, reference numeral 1 is an external line interface (I / F) circuit for detecting an incoming external line, forming a call, sending a dial signal, etc.
A hybrid circuit for converting 4 lines to 2 lines, 3 is an A / D conversion circuit for converting a digital signal for communication into an analog signal and 3) an analog signal into a digital signal, and 4 is a digital signal for communication from the AD conversion circuit 3. Highway HW for calls
Or delivered to _one predetermined time slot, a highway I / F circuit for transmitting a call for digital signals of a predetermined time slot of the call for highways HW ₁ the AD conversion circuit 3.

18 is a modem circuit that modulates the data to be transmitted and demodulates the received data, 19 is an analog switch unit that switches according to the data communication state and the call state under the control of the NPU 9.
20 sends a data signal from the modem circuit 18 to a predetermined time slot of the data highway HW _2, also extracts a data signal from a predetermined time slot of the data highway HW ₂ is sent to the modem circuit 18 Highway control
It is an I / F circuit.

The analog switch unit 19 is an analog switch A for turning on / off a sound signal from the outside line to the AD conversion circuit 3.
And an analog switch B for turning on / off a voice signal from the AD conversion circuit 3 to the outside line, and a modem circuit from the outside line.
It has an analog switch C for turning on / off a data signal for 18 and an analog switch D for turning on / off a data signal from the modem circuit 18 to an external line.

The analog switch unit 19 is controlled by the NPU 9 so that the analog switches A and B are on and the analog switches C and D are off during normal communication.

The external line I / F circuit 1, hybrid circuit 2, AD conversion circuit 3, highway I / F circuit 4, modem circuit 18, analog switch section 19, highway control I / F circuit 20 constitute the external line circuit section of the main device. , This external line circuit section is provided corresponding to the number of external lines, but the modem circuit 18 and the analog switch section 1
9. The highway control I / F circuit 20 may be provided only in a specific outside line circuit section.

Further, 5 is a highway control I / F circuit for transmitting / receiving a voice signal and a data communication signal to / from a predetermined time slot of a communication highway HW ₁ and a data highway HW ₂ , respectively, and 6 is a highway control I / F circuit. Voice signal from 5,
The data communication signal and the control signal from the microcomputer (NPU) 9 are serial-converted to digital button telephone TE.
L is a data communication control I / F circuit which sends the signal to the personal computer P, converts the signals from the digital key telephone TEL and the personal computer P into parallel signals, and sends the signals to the highway control I / F circuit 5 and the NPU 9.

The highway control I / F circuit 5 and the data communication control I / F circuit 6 are provided corresponding to the number of extensions.

FIG. 2 shows a digital button telephone TEL connected to the main device shown in FIG. 1, and 10 is DA conversion of serial signals of voice signals, data communication signals, and control signals from the main device. Circuit 11, data communication I / F circuit 1
2. A data communication control I / F circuit that sends the data to the microcomputer (APU) 17, converts the parallel signals into serial data, and sends the serial signals to the main device.

Reference numeral 11 denotes a DA conversion circuit for converting the voice signal from the data communication control I / F circuit 10 into an analog signal, and converting the analog signal into a digital signal and sending it to the data communication control I / F circuit 10, 14
Is a handset for transmission / reception in which a voice signal from the DA conversion circuit 11 is converted into voice and transmitted to the handset 14, and a voice signal is converted into a voice signal and transmitted to the DA conversion circuit 11.

12 is a data communication I / F that converts the data communication signal and connects the data communication control I / F circuit 10 and the RS-232C I / F circuit 13
The RS-232C I / F circuit, which is a circuit, connects the data communication I / F circuit and the personal computer P.

Reference numeral 15 is a dial key for sending a dial, an external line key for designating and displaying an external line, a key having a data communication key for performing data communication, and the like, 16 is a hook switch operated by the on-hook / off-hook of the handset 14, and 17 Is
This is an APU that controls the entire digital button telephone.

Next, the operation of the embodiment having the above configuration will be described for the case where data communication is performed from the personal computer P via an outside line.

In Fig. 2, when the outside line "1" is specified by the outside line key of the key 15 of the digital button telephone TEL and the receiving side telephone number "x ~ x" is input via the dial key, APU1
7 indicates the key data for the data communication control I / F circuit 10, the first
NPU via the data communication control I / F circuit 6 of the main unit shown in the figure
Send to 9.

NPU9 is a digital button telephone TE
L is connected to the outside line "1", and the outside line I / F circuit 1 is controlled to capture the outside line "1", and the dial number "x ~"
The dial signal of "x" is transmitted.

In this case, when the other party answers, the digital key telephone
A call path with TEL is formed.

In this state, when the data communication key of the key 15 of the digital button telephone TEL is pressed, the key data is sent to the NPU9 of the main unit through the same route as above, and the NPU9 switches the data communication control I / F circuit 6 The analog switch section 19 is controlled so that the analog switch B is turned off and the analog switches A, C, and D are turned on.

Therefore, since the personal computer P and the partner computer enter the data communication state, and the data signal from the partner computer is reproduced as sound by the handset 14 of the digital button telephone TEL, the data communication state can be monitored. .

EFFECTS OF THE INVENTION As described above, according to the present invention, by incorporating a modem circuit in the outside line circuit unit, the other side is called without dialing an extension number, and at the time of data communication, a data communication path with the other side is formed. In addition, based on the control signal, both the voice signal and the output signal of the modem circuit are converted into analog signals and output to the handset, thereby forming a data communication monitor path from the other party to the digital key telephone. Therefore, the data communication can be performed by a simple dial operation, and the data communication state can be monitored by the digital key telephone, so that the operability can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a digital button telephone device according to the present invention, particularly a main device, and FIG. 2 is a block diagram showing an embodiment of a digital button telephone connected to the main device of FIG. FIG. 3 and FIG. 3 are block diagrams showing a conventional example. 9 …… Microcomputer (NPU), 15 …… Key, 18
…… Modem circuit, 19 …… Analog switch, A, B,
C, D ... Analog switch, TEL ... Digital button telephone, P ... Personal computer.

Claims (1)

[Claims] 1. A hybrid circuit in which two lines connected to an external line are converted into four lines, one of the two lines on the side of the four lines is used for reception, and the other two lines are used for transmission, and a hybrid circuit of this hybrid circuit. A call analog-digital conversion circuit connected to the receiving two lines via the first analog switch and connected to the transmitting two lines via the second analog switch, and an output signal of the call analog-digital converting circuit Is connected to a first highway interface circuit for transmitting a predetermined time slot of a highway for communication and a receiving two wire of the hybrid circuit via a third analog switch, and demodulates the received data and A modem circuit that is connected to the two lines through a fourth analog switch, modulates the data to be transmitted, and outputs the modulated data to the hybrid circuit; A second highway interface circuit for sending an output signal to a predetermined time slot of the data highway, extracting a data signal from the predetermined time slot of the data highway, and outputting the data signal to the modem circuit; A third highway interface circuit that transmits and receives a voice signal and a data communication signal to and from a predetermined time slot of the data highway, and a main device that outputs a control signal to the output signal of the third highway interface circuit. Data communication interface circuit and a data communication interface circuit for a key telephone which converts the output signals of the data communication interface circuit for the main device into a parallel signal and converts the parallel signal to a serial signal for output to the data communication interface circuit for the main device. And a digital telephone for converting the voice signal of the data communication interface circuit for the key telephone to an analog signal and outputting the analog signal to the handset, and a digital signal for converting the analog signal of the handset to the data communication interface circuit for the key telephone. And a data communication interface circuit for outputting the data communication digital signal of the key telephone data communication interface circuit to the personal computer and outputting the signal of the personal computer to the key telephone data communication interface circuit. A digital key telephone device, characterized by comprising: turning on the third and fourth analog switches and turning on the first analog switch during data communication.