JPH01202064A - Digital telephone set - Google Patents

Abstract

PURPOSE:To simultaneously execute inter-voice call and inter-data communication by connecting an information channel assigned to voice incoming or data incoming to coders/decoders to be used for the voice incoming or data interfaces to be used for the data incoming. CONSTITUTION:Coders/decoders 6a, 6b connected to sound circuits 5a, 5b for controlling transmitters 3a, 3b and receivers 4a, 4b to code/decode voice information and data interfaces 7a, 7b to be interfaces with data terminals are respectively connected to a switch part 8 to be actuated under control based upon a processor 13. Consequently, a digital telephone set for controlling the switch part 8 at the time of receiving voice incoming during the period of a voice call or data incoming during the period of data communication, connecting the information channel assigned to voice incoming or data incoming to the coders/decoders, 6a, 6b to be used for the voice incoming or the data interfaces 7a, 7b to be used for the data incoming to simultaneously execute inter-voice call and inter-data communication can be obtained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an integrated service digital network (hereinafter referred to as 15D
This relates to a digital telephone that is connected as a terminal to a telephone (referred to as N).

[Conventional technology]

Figure 3 shows, for example, the Institute of Electronics and Communication Engineers Technical Research Report 8E85-9.
2 is a block diagram showing the conventional digital telephone set shown in FIG. Two information channels B1. 3 is a transmitter, 4 is a receiver, 5 is an audio circuit to which the transmitter 3 and receiver 4 are connected; A codec connected to this audio circuit 5 encodes and decodes audio information, 7 is a data interface that interfaces with a data terminal (not shown), and 8 connects the two information channels B1+B2 of the line interface circuit 2 to this A switch section for switching and connecting to the codec 6 or data interface 7, 9/i a numeric keypad for inputting the number information of the communication partner, 10 a ringer to notify the operator of the digital telephone of an incoming call, 11 a numeric keypad 9 , controls the ringer 10, and also controls the audio circuit 5.
12 is a display device such as a liquid crystal display on which input key information, communication partner number information, terminal status, etc. are displayed; 13 is the line interface circuit 2, the audio circuit 5, and a switch section. 8. A processing device 14 to which the input/output controller 11, display device 13, etc. are connected and performs control processing for the entire digital telephone.
a handset 1 having the transmitter 3 and the receiver 4;
A hook switch 5 is connected to the input/output controller 11 and is turned on and off by the handset 14.

Next, the operation will be explained. l5DN times? When a voice call is received from B1, the processing device 13 displays the number information of the calling party on the display device 12 based on the information on the signal channel D separated by the line interface circuit 2. The processing device 13 further controls the switch unit 8 to connect the information channel assigned to the voice call, for example, information channel B1, to the codec 6, and instructs the input/output controller 11 to ring the ringer 10. .

Here, when the operator of the digital telephone turns off the handset 14 upon hearing the ringer 10, the hook switch 15 is turned on, and a response signal due to the on of the hook switch 15 is sent to the processing device 13 via the input/output controller 11. The signal is sent to the 15DN line 1 on the signal channel D via the reverse route to the incoming call. The bales, processing equipment 1
The audio circuit 5 operates according to instructions from the third party and enters into a talking state. That is, the voice information from the handset 3 is encoded by the codec 6, sent to the switch unit 8, and placed on the information channel B1 designated for the voice call.

The line interface circuit 2 multiplexes it with other information channel B2 and signal channel D and sends it out to the 15DN line 1. On the other hand, the voice information of the communication partner from the 15DN line 1 is separated in the line interface circuit 2 and sent to the switch. Part 8
is sent to the codec 6 and decoded by the audio circuit 5.
is input to the receiver 4.

When communication by a data terminal occurs during such a voice call, the processing device 13 controls the switch section 8 to connect the data interface 1 to a vacant information channel, that is, information channel B2. As a result, data from the data terminal connected to the data interface 7 is sent to the switch section 8 and placed on the information channel B2 assigned to the data call, and the line interface circuit 2 sends the data to the other information channel B1 and the signal. The data is multiplexed with channel D and sent to the 15DN line 1, the data from the communication partner is separated by the line interface circuit 2, and the data is sent to the data interface 7 by the switch unit 8.
is sent to the data terminal via. This also applies when a voice call occurs during data communication, and in this way, this digital telephone can perform voice calls and data calls at the same time.

[Problem to be solved by the invention]

Since the conventional digital telephone is configured as described above, it has two information channels B1. Although it is possible to perform voice calls and data communications at the same time using B2, if you are making a voice call on one of the information channels, for example jTt@channel B1, and a voice call is rarely received on the other information channel B2, or - If a data call is received on the other information channel B2 during data communication on one information channel B1, the incoming voice or data call will be rejected, so make full use of the vacant information channel B1 or B2. Also, voice calls or data communications cannot be made through information channel B1. In order to use both B2 and B2 at the same time, it is necessary to prepare another digital telephone, which poses problems such as being subject to many restrictions in terms of installation space and leading to increased costs.

This invention was made to solve the above-mentioned problems, and its purpose is to provide a digital telephone that can simultaneously perform voice calls and voice calls, and data communications. .

[Means to solve the problem]

The digital telephone according to the present invention includes a switch section that operates under the control of a processing device, and a codec that is connected to an audio circuit that controls a transmitter and a handset and that encodes and decodes audio information, and a data terminal. A plurality of data interfaces are connected to each other.

[For production]

The processing device according to the present invention controls a switch unit to select an information channel assigned to the voice call or data call when a voice call is received during a voice call or when a data call is received during data communication. is connected to a codec used for voice calls or a data interface used for data calls, thereby realizing a digital telephone that can simultaneously perform voice calls and data communications.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 is an 15DN line, 2 is a line interface circuit, 8 is a switch section, 9 is a numeric keypad, 10 is a ringer, 11 is an input/output controller, 12 is a display device, and 13 is a processing device. Since these parts are the same as or equivalent to those in the prior art with the same reference numerals, detailed explanations will be omitted.

Also, 3a, 3b t4a, 4b, 5a, 5b
, 6a , 6b , 7a , 7b , 14a , 14
b, 15a.

15b corresponds to the conventional transmitter 3, receiver 4, audio circuit 5, codec 6, data interface 7, handset controller) 8.7 TXT f9K shown in FIG. 3, and l pairs of each are prepared. and codec 6a
t6b% and data interfaces 7a and 7b are connected to a switch section 8 and selectively connected to information channels B1+B2 of the line interface circuit 2. Furthermore, 16a
, 16b are data keys provided corresponding to the data interfaces 7a, 7b and connected to the input/output controller 11. FIG. 2 is a perspective view showing the appearance of the digital telephone configured in this manner.

Next, the operation will be explained. When a voice call is received from a certain caller through the l5DN line 1, the processing device 13 displays the number information of the calling party on the display device 1, as in the conventional case.
2, and further instructs the input/output controller 11 to make the ringer 10 ring. Hearing the ringer 10 ring, the operator of the digital telephone set the handset,
For example, when the handset 14a is raised to respond, the corresponding hook switch 15a is turned on, and a response signal caused by turning on the hook switch 15a is sent to the input/output controller 11.
The data is sent to the processing device 13 via.

The processing device 13 sends this response signal to the 15DN line 1 via the signal channel D in the opposite route to the one used when the call is received, and also controls the switch section 8 to transmit the response signal to the information channel assigned to the voice call, e.g. Channel B1 is connected to the codec 6a corresponding to the handset 14a, and then the corresponding audio circuit 5a is activated to enter into a talking state. As a result, voice information from the transmitter 3a of the handset 14a is encoded by the codec 6a and sent to the switch unit 8, and is placed on the information channel B1 assigned to the voice call and sent to the line interface circuit. 2 and sent to the 15DN line 1. On the other hand, 18DN
The communication partner's voice information from the line 1 is separated by the line interface circuit 2, sent to the codec 6a by the switch section 8, decoded, and inputted to the voice circuit 5a and the receiver 4a of the handset 14a, where the voice information is output. be done.

When making a voice call like this, the l5DN line 1
When there is a voice call from another caller from ', processing device 1
3 is an empty information channel, that is, information channel B2
to instruct the ringer 10 to ring. In response, the operator of the digital telephone receives the other handset 14.
When you respond by raising b, the hook switch 15b turns on,
The response signal is sent to the processing device 13 via the input/output controller 11. The processing device 13 sends this response signal to the 15DN line 1 via the signal channel D in the reverse route from when it arrived.
and controls the switch unit 8 to transmit the information to the information channel B.
2 and handsera) 14b, and further activate the corresponding audio circuit 5b. As a result, the transmitter 3 of handsera) 14b enters the talking state.
The audio information from the I5DN line 1 is encoded by the codec 6b, sent to the switch unit 8, put on the information channel B2, multiplexed by the line interface circuit 2, and sent to the I5DN line 1. The voice information of the communication partner is separated by the line interface circuit 2, sent to the codec 6b by the switch section 8, decoded, inputted to the voice circuit 5b and the receiver 4b of the handset 14b, and output as voice.

The same applies to data communication; when data communication is performed using the data interface 7a through the information channel B1, if there is a data transmission from another caller through the 15DN line 1, the processing device 13 is processing device 1
3 is selected, and the switch section 8 is controlled to connect this information channel B2 to the available data interface 7b. As a result, data from the data terminal connected to the data interface 7b is sent to the switch section 8, put on the information channel B2, multiplexed with other information channel B1 and signal channel D by the line interface circuit 2, and then sent to the l8DN. Line 1
On the other hand, data from the communication partner is separated by the line interface circuit 2, and transmitted to the data terminal by the switch section 8 via the data interface 7bt-. Here, control signals for transmitting and disconnecting data are generated by operating the associated data keys 16a or 16b and are transmitted to the input/output controller 11, and the processing device 13 controls the signals transferred from the input/output controller 11. The switch unit 8 is controlled based on the signal.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of codecs and a plurality of data interfaces are connected to the switch unit, and when a voice call is received during a voice call or a data call is received during data communication, By controlling the switch unit, the information channel assigned to the voice call or data call is connected to the codec used for the voice call or the data interface used for the data call. voice call,
This has the effect of providing a digital telephone that can perform data communication and data communication simultaneously.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a digital telephone according to an embodiment of the present invention, FIG. 2 is a perspective view showing its appearance, and FIG.
The figure is a block diagram showing a conventional digital telephone. 1 is a line (ISDN line), 2 is a line interface circuit, 3a, 3b is a transmitter, 4a, 4tlt receiver, 5
a, 5b are audio circuits, 5a, 5b are codecs, 7a
, 7b is a data interface. 8 is a switch section, and 13 is a processing device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant: Mitsubishi Electric Corporation (2 persons) 6b

Claims (1)

[Claims] A codec is connected to a line via a line interface circuit that separates and multiplexes a signal channel and multiple information channels, and is connected to an audio circuit that controls the transmitter and receiver, and encodes and decodes audio information. , a digital telephone that performs voice calls and data communications by selectively connecting a data interface that interfaces with a data terminal to the plurality of information channels by a switch unit that operates under the control of a processing device; When a plurality of codecs and data interfaces are connected and there is an incoming voice call during a voice call,
controlling the switch unit to connect the information channel assigned to the voice call to the codec used for the voice call; and controlling the switch unit when a data call is received during data communication; A digital telephone characterized in that the information channel assigned to the data arrival is connected to the data interface used for the data arrival.