JPH04349754A - Talking device - Google Patents

Abstract

PURPOSE:To attain doorphone talking from a master set with a doorphone slave set and to attain doorphone talking without a telephone set by providing a channel forming means forming a channel between a hand-free talking means and the doorphone slave set to the master set. CONSTITUTION:When the user depresses a talking switch 10, a control circuit 17 activates a speech network 23 to output a voice signal inputted from a microphone 9 to a speech circuit 20, and the voice signal inputted from the speech circuit 20 is outputted to a speaker 6 to attain doorphone talking in hand-free between the master set and the doorphone slave set. The doorphone talking is checked even when no telephone set is fitted by implementing the doorphone talking between the master set and the doorphone slave set.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device that allows outside line calls and intercom calls using a telephone.

0002

2. Description of the Related Art A conventional communication device is shown in FIG. This communication device is a master unit 1' installed indoors.
The main unit 1' and the door intercom sub unit 2 are connected to each other by, for example, a two-core signal line 5. In this telephone device, when a visitor presses the call button 4 provided on the doorphone subunit 2, the main unit 1
A ring tone is emitted from the speaker 6 provided in ', and in response to this ring tone, the handset (receiver) 3 provided in the main device 1'
When the door intercom slave unit 2 and the main unit 1' are picked up, a communication path is formed, and a door intercom call can be made.

By the way, telephone equipment is usually installed indoors, and in the case of the above-mentioned telephone equipment, it is installed completely independently of the above-mentioned telephone equipment. Therefore, various types of systems coexist indoors, which is undesirable. Therefore, a telephone communication device is provided that allows not only door intercom calls but also normal telephone calls (hereinafter referred to as outside line calls). This communication device is shown in FIG. In this communication device, a telephone 7 in addition to a door intercom subunit 2 is connected to a master unit 1'' via a two-core signal line 8,
The telephone 7 can be used to make outside calls, and the telephone 7 can also be used to make doorbell calls.

[0004] This telephone communication device has the advantage that the door intercom system and the telephone system can be integrated, and that the telephone set 7 can be highly functional.

[0005]

However, the telephone device shown in FIG. 5 has a problem in that there is no means for making a doorphone call before the telephone set 7 is installed, and it is not possible to inspect the doorphone call after the installation is completed. Incidentally, such a situation may occur, for example, when construction is performed on a newly built house before moving in.

[0006] Furthermore, when making a door-to-door call using the telephone set 7, it is necessary to pick up the handset, which is inconvenient in that it is not possible to make a door-to-door call if one's hands are dirty in the kitchen or the like. The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a telephone communication device that allows door intercom calls without using a telephone.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a hands-free call means for making a hands-free call with a door intercom slave unit, and a hands-free call means for making a hands-free call with a door intercom slave device, and a door intercom call means using the hands-free call means. A switch for starting and ending operations, and a communication path forming device for forming a communication path between the hands-free communication means and the door intercom sub-device when a door intercom call is made by the hands-free communication means in response to a call from the door intercom sub-device. A means is provided on the parent device.

[0008]

[Operation] By configuring the present invention as described above,
This device enables door phone calls to be made between a master device and a door phone slave device, so that door phone calls can be made without a telephone. Moreover, by making it possible to make doorbell calls between the main device and the doorbell slave device in this way, it is possible to inspect doorbell calls even when a telephone is not installed. Doorbell calls can be inspected even when the system is installed at a home. Further, unlike when making a doorbell call using a telephone, there is no need to pick up the handset and make a doorphone call, so you can make a doorbell call even when your hands are dirty in the kitchen or the like.

[0009]

[Example] As shown in FIG. 2, the communication device of this example has the following features:
It consists of a master unit 1, a doorbell slave unit 2, and a telephone set 7, as shown in Fig. 5.
Similarly to the communication device, the handset of the telephone set 7 can be used to make outside calls as well as door intercom calls. In this embodiment, a microphone 9 is provided on the master device 1, thereby enabling hands-free doorphone calls. In other words, the door intercom slave unit 2 uses the microphone 13 in order to make a call with the telephone set 7.
and a speaker 14, and the parent device 1 is equipped with a speaker 6 for ringing so that the parent device 1 can also notify that there is a doorbell call. By simply providing the microphone 9, hands-free communication is possible using the microphones 9, 13 and speakers 6, 14 of both the master device 1 and the doorphone slave device 2. However, in order to perform this hands-free call, it is necessary to provide the parent device 1 with a circuit that will be described later. This circuit will be described later.

The structure and circuit configuration of the main device 1 will be explained below. As shown in FIG. 1, this main unit 1 has external line connection terminals L1 and L2 to which a telephone line is connected, extension connection terminals T1 and T2 to which a telephone 7 is connected, and an intercom connection which connects a door intercom slave unit 2. It includes terminals D1 and D2. In addition, the extension connection terminals T1 and T2 are as shown in Figure 2.
As shown in the figure, a modular jack 11 is used, and a modular plug 12 is attached to the tip of the telephone cord, which is the signal line 8 that connects the telephone 7 and the main unit 1, so that the telephone 7 can be detachably connected to the main unit 1. be.

The circuit configuration of this main unit 1 will be explained based on FIG. 1. The incoming call detection unit 15 detects an incoming call by detecting an incoming call signal sent through a telephone line, and is provided to notify the user that there is an incoming call, for example, when there is an incoming call during a doorbell call. There is. The hook detection unit 16 detects the hook state of the telephone 7 and detects the response state of the telephone 7 when the doorbell is called.
The output of the hook detection section 16 is used as a command to form a communication path for a door intercom call.

The control circuit 17 is composed of a CPU, and performs signal processing according to the detection outputs of the incoming call detection section 15 and the hook detection section 16, as well as the detection outputs of the incoming call detection section 15 and the hook detection section 16, and the call switch 10. The operation of each section, which will be described later, is controlled according to the operation of the controller. The switching circuit 18 is composed of, for example, a relay, and connects two contacts of this relay to external line connection terminals L1, L2 and internal line connection terminals T1, L2, respectively.
It is inserted between T2. And this switching circuit 1
8 connects and disconnects the telephone 7 from the telephone line, and when the telephone 7 is disconnected from the telephone line, the telephone 7
Connect to the doorphone slave unit 2. In the case of this embodiment, this switching circuit 18 is switched to connect the telephone 7 to the normal telephone line, and when the handset of the telephone 7 is picked up in response to a call from the intercom subunit 2, Connect the telephone 7 to the door intercom slave unit 2.

The current supply section 19 is provided to supply a talking current to the telephone 7 when the telephone 7 is disconnected from the telephone line by the switching circuit 18. Call circuit 2
0 is provided in a door intercom communication path, which is a communication path between the telephone 7 and the door intercom slave unit 2 formed by switching the switching circuit 18, and amplifies the audio signals of both and transmits them in both directions.

[0014] The call detection unit 21 detects a doorphone call because the call button 4 provided in the doorphone slave unit 2 is pressed.
The detection output is given to the control circuit 17. Melody generator 22
generates a ringing tone (for example, ping-pong tone, etc.) under the control of the control circuit 17 when the doorbell rings, and the speaker 6
Make a ringtone sound. In addition, this melody generating section 2
2, when an incoming call is received during a doorphone call, a notification sound can also be generated to notify the user of the incoming call.

The speech network 23 is a circuit for making a hands-free call between the door intercom slave unit 2 using the microphone 9 and the speaker 6, and is, for example, a hands-free call circuit provided in a normal hands-free call device. can be used. Furthermore, this speech network 2
3 is controlled by a control circuit 17 so as to operate only when making a hands-free call. In this embodiment, the speech network 23, the speaker 6, and the microphone 9 constitute a hands-free communication means.

The call switch 10 is used to start and end a hands-free doorphone call. Then, in response to the operation of the call switch 10, the control circuit 17 performs call path switching control. The operation of this embodiment will be explained. Regarding an outside line call using the telephone set 7, since the switching circuit 18 normally connects the telephone set 7 to the telephone line, the call is carried out in the same manner as a normal outside line call. Therefore, detailed explanation will be omitted.

[0017] Now, the call button 4 of the door intercom sub unit 2 is as shown in Fig. 3 (
When pressed as shown in a) and a call is made from the door intercom sub unit 2, this call is detected by the call detection section 21, and the control circuit 17 drives the melody generation section 22, thereby causing the melody generating section 22 to be pressed. ), a ring tone is emitted from the speaker 6. If you want to answer this call using telephone 7,
Simply pick up the handset of telephone 7. That is, when the handset of the telephone 7 is picked up, the hook detection section 16 detects this, and the control circuit 17 that receives this detection output drives and controls the switching circuit 18. At this time, the telephone 7 is disconnected from the telephone line and connected to the door intercom slave unit 2 via the communication circuit 20. Therefore, from now on, the telephone 7 can be used to make a doorbell call with the doorphone slave unit 2. Incidentally, at this time, the speech network 23 is in an inactive state so as not to affect the door intercom call by the telephone 7.

Next, a case will be described in which the base device 1 responds to the above call by making a hands-free call. In this case, the user may press the call switch 10 as shown in FIG. 3(c). That is, when the call switch 10 is pressed, the control circuit 17 activates the speech network 23, so that the audio signal input from the microphone 9 is output to the call circuit 20, and the audio signal input from the call circuit 20 is output to the speaker 6. As shown in FIG. 3(d), a hands-free intercom call can be made between the master unit 1 and the intercom slave unit 2.

[0019] By allowing door intercom calls to be made between the master unit 1 and the door intercom sub unit 2 in this manner, door intercom calls can be inspected even when the telephone set 7 is not attached. For example, even if the system is installed in a newly built house before you move in, you can inspect doorbell calls. Further, there is no need to always pick up the handset and make a doorphone call unlike when making a doorphone call using the telephone set 7, so there is an advantage that the doorphone call can be made even when the hands are dirty in the kitchen or the like.

Needless to say, during this hands-free call, the switching circuit 18 maintains the state in which the telephone 7 is connected to the telephone line. That is, in the case of this embodiment, when performing a hands-free door intercom call in response to a call from the door intercom sub unit 2, the hands-free communication means consisting of the speech network 23, the speaker 6, and the microphone 9, and the door intercom sub unit 2 are used. A communication path forming means for forming a communication path between the control circuit 17 and the switching circuit 1
8. It is composed of a speech network 23 including 20 communication circuits.

By the way, in the device for making hands-free calls between the master unit 1 and the door intercom slave unit 2 as described above,
If the call switch 10 is pressed unnecessarily due to a child's mischief or the like and a call path is formed with the door intercom slave unit 2, there is a problem in that indoor sounds will leak. Therefore,
Only when the call switch 10 of the master unit 1 is pressed within a certain period of time (for example, within 30 seconds) after receiving a call,
It is arranged so that a call can be made with the door intercom slave device 2.

[0022] Then, when ending the call, the process shown in Fig. 3 (
When the call switch 10 is pressed again as shown in c), the control circuit 17 stops the operation of the speech network 23, thereby ending the call. Note that δT1 to δT3 in FIG. 3 each indicate a delay time with respect to the operation. It should be noted that the person who answers the doorbell call first with the telephone set 7 and base unit 1 is able to talk. In other words, in response to a call, the person who picks up the handset first or presses the call switch 10 has priority.

By the way, when making a hands-free call of this type, the user presses the call switch 10 again to end the call, but the user often forgets to perform the end operation. Therefore, in order to prevent this forgetting to end a call, for example, the presence or absence of an audio signal on the communication path for hands-free calling is detected, and if the audio signal is not detected for a predetermined period of time or more, the speech A method such as stopping the operation of 23 may be used.

[0024]

Effects of the Invention As described above, the present invention provides a hands-free call means for making a hands-free call with a door intercom slave, and a switch for starting and ending a door intercom call using the hands-free call means. and a communication path forming means for forming a communication path between the hands-free communication means and the door intercom slave unit when the hands-free communication means performs a door intercom call in response to a call from the door intercom slave unit. Since there is a door intercom device, the main unit can be used as a door intercom slave device, and door intercom calls can be made without a telephone. Moreover, by making it possible to make doorbell calls between the main device and the doorbell slave device in this way, it is possible to inspect doorbell calls even when a telephone is not installed. Doorbell calls can be inspected even when the system is installed at a home. Further, unlike when making a doorbell call using a telephone, there is no need to pick up the handset and make a doorphone call, so you can make a doorbell call even when your hands are dirty in the kitchen or the like.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of a parent device according to an embodiment of the present invention.

FIG. 2 is a system configuration diagram of a telephone device.

FIG. 3 is an explanatory diagram of the operation when responding to a doorphone call using the parent device.

FIG. 4 is a system configuration diagram of a conventional example.

FIG. 5 is a system configuration diagram of another conventional example.

[Explanation of symbols]

1 Parent equipment 2　Doorphone slave unit 6 Speaker 7　Telephone 9. Microphone 10　Call switch 17 Control circuit 18 Switching circuit 20 Call circuit 23 Speech Network

Claims (1)

[Claims] [Claim 1] A telephone set and a door intercom slave unit are connected to a master unit, and a communication path is switched between a public telephone line and the telephone set, and between the telephone set and the door intercom slave unit, so that an outside call can be made by the telephone and the telephone can be used. A telephone device for making a doorbell call, comprising a handsfree call means for making a handsfree call with a doorphone slave, a switch for starting and ending a doorphone call using the handsfree call means, and a doorphone. The main unit is provided with a communication path forming means for forming a communication path between the hands-free communication means and the door intercom slave unit when a door intercom call is made by the hands-free communication means in response to a call from the slave unit. A telephone device with special features.