JPH0646111A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To attain the use of a line wire connected to one master set through the use of a slave set corresponding to the other master set. CONSTITUTION:A first master set 3 is connected with a first line wire 1 and provided with a first master set communication part radio-connecting with first slave sets 5a and 5b. A second master set 4 is provided with a third master set communication part radio-connecting with the first master set communication part and a second master set communication part connected with the third master set communication part or a second line wire 2 and radio-connects with second slave sets 6a and 6b. When the second slave sets 6a and 6b use the first line wire 1, the third master set communication part are connected to the second master set communication part and the third master set communication part and the first master set communication part are radio-connected so as to pass through second, third and first master sets communication parts to connect the second slave sets 6a and 6b to the first line wire 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone using two external lines.

[0002]

2. Description of the Related Art Cordless telephones are widely used because they are easy to use because they do not have a connecting cord for narrowing the moving range of a handset. This cordless telephone has a configuration in which one master unit and one slave unit are combined, or
There is a configuration that combines one master unit and multiple slave units,
In any of these configurations, the outside line is connected to the master unit. With respect to the outside line, it is possible to make a call and receive a call on either the master unit side or the slave unit side. In addition, it is configured such that extension calls can be made between the master unit and the slave unit.

[0003]

By the way, when the store and the residence are in the same building and the telephone is frequently used in both the store and the residence, an outside line is connected to each of the store and the residence. Need to be used. And
Two cordless telephones having the above configuration are required to enable the use of the cordless handset for each outside line.

However, the cordless telephones having the above-mentioned configuration have a master unit corresponding to each cordless handset, and cannot correspond to different master units. Therefore, if you want to use an outside line for a store together in your house, you should have two children inside the house: a child device that corresponds to the parent device for the store and a child device that corresponds to the parent device for your residence. There was a problem that the machine had to be installed.

The present invention was devised to solve the above-mentioned problems, and an object thereof is to connect a master unit to each of two external lines and use a slave unit corresponding to one master unit to It is to provide a cordless telephone that can use an outside line connected to the base unit of the.

[0006]

In order to solve the above-mentioned problems, the cordless telephone of the present invention uses one of two external lines as a first external line and the other external line as a second external line. , A first master unit to which a first outside line is connected, a first slave unit wirelessly connected to this first master unit, a second master unit to which a second outside line is connected, A cordless telephone including a second slave unit wirelessly connected to a second master unit, wherein the first master unit is a first master unit that wirelessly connects to the first slave unit. A communication unit is provided, and the second master unit is connected to a third master unit communication unit that performs wireless connection with the first master unit communication unit and the third master unit communication unit. And a second base unit communication unit that makes a wireless connection with the second handset, and when the second handset uses the first outside line, the second handset communication unit While connecting the third base unit communicating unit to the machine communication unit, and said third master unit communication unit the first base unit communication unit wirelessly connected.

[0007]

The second slave unit is connected to the second master unit communication unit, the second master unit communication unit is connected to the third master unit communication unit, and the third master unit communication unit is the first master unit communication unit. Connected to the base unit communication section. Also the first
Since the first external line is connected to the base unit communication unit of, the second external device is connected to the first external line by the above connection.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view showing the outline of an embodiment of a cordless telephone of the present invention.

In the figure, the first master unit 3 to which the first external line 1 is connected includes a first slave unit 5a and a first slave unit 5b as slave units wirelessly connected to this master unit. Two slave units are provided, and the second master unit 4 to which the second outside line 2 is connected is the second master unit wirelessly connected to the second master unit 4.
There are two slave units, a slave unit 6a and a second slave unit 6b.

The second master unit 4 is wirelessly connected to the first master unit 3, and the second master unit 4 operates as a slave unit to the first master unit 3. At the same time, the second slave units 6a and 6b operate as a master unit.

FIG. 2 is a block diagram showing the electrical construction of an embodiment of the first base unit 3 according to the present invention.

First slaves 5a and 5b and second master 4
Antenna 12 for transmitting and receiving radio waves for wireless connection with
Is connected to a transmission / reception separation unit 13 that separates a transmission signal and a reception signal, and the high-frequency signal received by the antenna 12 is given to the reception circuit 23 via the transmission / reception separation unit 13.

The audio signal received and detected by the receiving circuit 23 is sent to the signal switching unit 17 of the switch for switching the audio signal, and the control signal taken out by the receiving circuit 23 is controlled. It is guided to the control signal detector 24 that detects a signal.

The transmission circuit 2 to which the voice signal from the signal switching unit 17 and the control signal from the control signal transmission unit 25 are guided.
The high frequency signal from 6 is guided to the antenna 12 via the transmission / reception separating unit 13. Then, the control signal transmission unit 25
Is supplied with the output of the control unit 14 that controls the main operation of the master unit, and the control signal detected by the control signal detection unit 24 is sent to the control unit 14.

Further, the control unit 14 has an I indicating the identification of the master unit.
The output of the ID-ROM 15, which is a memory that stores the D code and the ID code for identifying the slave unit, is guided, and the output from the control unit 14 is output to the bell unit 16 that generates a ringing sound for calling. Has been introduced.

To the signal switching section 17, a handset 18 for transmitting and receiving is bidirectionally connected, and a speech circuit 19 for separating a transmitting signal and a receiving signal is bidirectionally connected. The first external line 1 is connected to an incoming call detection dial hook unit 20 that performs incoming call detection, dialing and hook detection via a telephone line connection unit 21 that serves as an interface with the external line. The section 20 is bidirectionally connected to the speech circuit 19.

In the above structure, the first slave unit 5a,
5b and the first base unit communication unit 11 that establishes a wireless connection with the second base unit 4 is configured by four blocks of a reception circuit 23, a control signal detection unit 24, a control signal transmission unit 25, and a transmission circuit 26. Has become.

FIG. 3 is a block diagram showing the electrical construction of an embodiment of the second master unit 4 according to the present invention.

The configuration of the second base unit 4 is the same as the configuration of the first base unit 3 shown in FIG. 2 except that a receiving circuit 44 and a transmitting circuit 49 are added. Is omitted, and here, only the correspondence relationship between the blocks of the first master unit 3 and the second master unit 4 is shown.

That is, the antenna 31 corresponds to the antenna 12, the transmission / reception separation unit 34 is the transmission / reception separation unit 13, the reception circuit 45 is the reception circuit 23, the control signal detection unit 46 is the control signal detection unit 24, and the control signal. The transmitting section 47 corresponds to the control signal transmitting section 25, and the transmitting circuit 48 corresponds to the transmitting circuit 26.

Further, the control unit 35 informs the control unit 14 of the ID-R.
The OM 36 is in the ID-ROM 15, and the bell 37 is the bell 1.
6, the signal switching unit 38 to the signal switching unit 17, the handset 39 to the handset 18, the speech circuit 40 to the speech circuit 19, the incoming call detection dial hook unit 41 to the incoming call detection dial hook unit 20, and the telephone line connection unit 42. Correspond to the telephone line connection units 21, respectively.

However, the details of the internal configuration of each of the blocks corresponding to each other are different from each other in correspondence with the difference between the operation as the first base unit 3 and the operation as the second base unit 4. is there. For example, regarding the ID-ROM, 15 has a configuration in which an ID code required for the first master unit 3 is stored, and 36 has a configuration in which an ID code required for the second master unit 4 is stored. Therefore, the data structure is different. The external line connected to the telephone line connection unit 42 is the second external line 2.

Regarding the receiving circuit 44 and the transmitting circuit 49, which are blocks that do not correspond to the first base unit 3, the receiving circuit 44 has the same configuration as the receiving circuit 45, and the transmitting circuit 49 has the transmitting circuit. It has the same configuration as 48.

In the configuration shown in FIG. 3, the second base unit communication section 32 for making a wireless connection with the second handset units 6a and 6b.
Is composed of four blocks including a reception circuit 45, a control signal detection unit 46, a control signal transmission unit 47, and a transmission circuit 48, and a third master unit communication for wirelessly connecting to the first master unit 3. The unit 33 is configured by four blocks including a reception circuit 44, a control signal detection unit 46, a control signal transmission unit 47, and a transmission circuit 49. The control signal detection unit 46 and the control signal transmission unit 47 are configured to be used together by both the second master unit communication unit 32 and the third master unit communication unit 33.

The four slave units 5a, 5b, 6a shown in FIG.
6b has the same configuration, and the electrical configuration of one embodiment thereof is shown in FIG.

In the configuration shown in the figure, the telephone line connection unit 21, the incoming call detection dial hook unit 20, the speech circuit 19 and the signal switching unit 17 are removed from the configuration of the first base unit 3 shown in FIG. It has been configured. Therefore, in the configuration shown in FIG. 4, the output of the receiving circuit 63 is directly guided to the handset 70, and the output of the handset 70 is directly guided to the transmitting circuit 66.

FIG. 5 is a flowchart showing the operation of the first parent device 3, and FIG. 6 is a flowchart showing the operation of the second parent device 4. The operation of one embodiment of the present invention will be described below with reference to FIG.

All the slaves 5a, 5b, 6a, 6b
Has the same configuration and operation as those of the prior art, and therefore, in the following description of the slave units 5a, 5b, 6a, 6b, a detailed description of the operation will be omitted, and within the range necessary for the present invention. The explanation will be limited to.

Now, when there is an incoming call at the first outside line 1 connected to the first base unit 3, this incoming call is detected by the incoming call detection dial hook section 20, so the control section 14 switches the bell section 16 to Then, a bell sound indicating an incoming call is generated (step S11). Further, the control unit 14 includes the control signal transmission unit 2
By using 5 and the transmission circuit 26, the first slave units 5a and 5b and the second master unit 4 (serving as the slave unit for the first master unit 3) are notified of the incoming call. (Step S12).

Therefore, the second base unit 4 receives the radio wave notifying the incoming call by the receiving circuit 44 and takes out the ID code by the control signal detecting section 46. Then, the retrieved ID code and I stored in the ID-ROM 36
By comparing with the D code, it is determined whether or not the transmission source is the first parent device 3 (step S31).

Since this determination indicates that the transmission source is the first master unit 3, the control unit 35 makes a bell sound using the bell unit 37 (step S32), and the control signal transmission unit 47 transmits the bell signal. By using the circuit 48, the second child device 6a,
6b informs that there is an incoming call (step S3
3).

That is, when an incoming call arrives at the first outside line 1, the first master unit 3, the first slave units 5a and 5b, the second master unit 4, and the second slave units 6a and 6b. The bell will sound in all of.

The operations corresponding to this call are as follows: the handset 18 of the first base unit 3, the first handset 5a or 5b, the handset 39 of the second base unit 4, and the second. There is correspondence by the child device 6a or 6b.

Assuming that the handset 18 of the first base unit 3 has taken measures, the control unit 14 controls the signal switching unit 17 to connect the first outside line 1 to the handset 18 (step In step S21, the calling of the second master unit 4 and the first slave units 5a and 5b is stopped (step S24). Further, the operation of the bell section 16 is stopped (step S25), and the call is started (step S2).
6).

In the above call, the first slave unit 5
When there is a correspondence of a or 5b (it is assumed that the first slave unit 5a corresponds), the control unit 14 controls the signal switching unit 17 to move the first slave unit 5a to the first outside line 1. (Steps S22 and S23), and then step S2
4, operations of S25 and S26 (stop calling of other slaves, stop of bell sound, and start of call) are performed.

The operation of the handset 18 when responding and the operation of the first handset 5a or 5b when responding are the same as in the prior art.

When the handset 39 of the second base unit 4 responds to the call (step S34), the handset 39 is transferred to the third side via the signal switching unit 38 and the third base unit communication unit 33. It connects to the parent device 3 of No. 1 (step S40). Further, the calling of the second slave units 6a and 6b is stopped (step S41), and the operation of the bell portion 37 is stopped (step S42).

At this time, the operations of steps S22 to S26 are performed on the side of the first master unit 3, so that the second master unit 4 is operated.
Operates as a child device to the first parent device 3 and starts a call by the first outside line 1 using the handset 39 (step S43).

In addition, in the above-mentioned call, either the second handset 6a or the second handset 6b can be used (second handset 6a).
Correspond to each other) (step S35),
The second parent device 4 establishes a wireless connection with the second child device 6a by using the second parent device communication unit 32 (step S39). Further, by controlling the signal switching unit 38, the third master unit communication unit 33 is connected to the second master unit communication unit 32 (specifically, the output of the reception circuit 44 is set to the transmission circuit 4).
8 and the output of the receiving circuit 45 is connected to the transmitting circuit 49).

That is, the second slave unit 6a is connected to the first outside line 1 through the second master unit communication unit 32, the third master unit communication unit 33, and the first master unit communication unit 11. (The operation of this connection is performed in step S on the side of the second master unit 4).
40, and on the side of the first master unit 3 are shown by steps S22 and S23).

At this time, the second base unit 4 stops calling the second handset unit 6b which does not correspond (step S4).
1) and the operation of the bell 37 is stopped (step S
42) is performed. Then, after that, the first slave unit 6a
The call to the outside line 1 is started (step S43 on the side of the second base unit 4 and step S43 on the side of the first base unit 3).
26).

This is the end of the explanation of the operation when there is an incoming call on the first outside line 1. When an incoming call arrives at the second outside line 2, the second master unit 4 operates as a master unit and only the second slave units 6a and 6b operate as slave units. Since this operation is the same as the conventional technique, the description of the operation is omitted (when there is an incoming call on the second outside line 2, the first
The master device 3 and the first slave devices 5a and 5b are not involved).

The description of the operation when there is an incoming call to the outside line is completed. Next, the operation at the time of making a call will be described.

If there is a call from the first slave unit 5a or 5b (here, it is assumed that the call is from the first slave unit 5a) and the content is an extension request, the first parent unit Machine 3
Indicates that the operation of step S18 shifts to the operation of step S11. Then, the corresponding operation is performed by the handset 18 in step S13. The operation at this time is step S21, and then steps S25 and S26 (steps S12, S14, S16, S22 to S2).
4 operation is not performed).

The first slave unit 5 in step S18
If the request from a is an outside line, the operation proceeds to step S19, the first handset 5a is connected to the first outside line 1 (step S19), and the call starts (step S19).
20).

Next, the operation when there is a call from the second handset 6a or 6b (here, the second handset 6a makes a call) will be described.

When the call is a request for an external line connection, the operation of the second base unit 4 wirelessly connected to the second handset 6a is as follows.
Since the operation shown in steps S31, S44, and S45 is performed, the second child device 6a operates as the second parent device communication unit 3
2, the signal switching unit 38, the speech circuit 40, the incoming call detection dial hook unit 41, and the telephone line connection unit 42 are connected to the second outside line 2. Then, the call starts (step S46).

If the call from the second handset 6a is a request for an extension call with the second handset 4, the second handset 4
Indicates steps S44 to S47 and step S5.
The operation is moved to 2 and an extension call is made with the second handset 6a (step S52).

The extension request from the second handset 6a is the second request.
If it is not an extension call with the master unit 4, the operation of the second master unit 4 proceeds from step S47 to step S48. That is, the second parent device 4 calls the extension request to the first parent device 3 using the third parent device communication unit 33.

Therefore, on the side of the first master unit 3, the second master unit 4 is also treated as a slave unit, the operation is shifted from step S18 to step S11, and the handset 18 waits for a response (step S13). The subsequent operation is the same as the case of the extension request from the first handset 5a, and therefore its description is omitted.

On the other hand, on the side of the second master unit 4, when the first master unit 3 corresponds, the third master unit communication unit 33 is connected to the second master unit communication unit 32 to 2 handset 6
a is wirelessly connected to the first base unit 3, and the first base unit 3 and the second base unit 3 are connected.
To make a call with the child device 6a (step S
34).

That is, the second handset 6a makes an extension call with the handset 18 of the first base unit 3.

The description of the operation is completed above, and a catchy description will be given below.

In the call operation in all cases described above, a loop operation ((loop of steps S13 to S15, step S3
The loop of 4 to S36 and the loop of steps S49 and S50) are performed. In this loop operation, if the calling side disconnects before handling the call, the operation that follows is to stop the call. (Steps S16 and S17, Steps S37 and S3
8, step S51).

The present invention is not limited to the above-mentioned embodiment, and the number of slave units is explained as the case where each of the first slave unit and the second slave unit is two units, but any other unit. It is possible to adopt a configuration in which several slave units are provided.

Further, the case where the present invention is applied to the analog type cordless telephone has been described, but the present invention can be similarly applied to the case of a digital cordless telephone, and in this case, the second base unit communication section. 32 and the third master unit communication unit 33 are shared by one communication unit, and the function of the second master unit communication unit 32 and the function of the third master unit communication unit 33 are shared in this communication unit. Configuration that is performed by time division (TDMA method)
It is also possible to

Further, a receiving circuit and a transmitting circuit are added to the side of the first base unit 3 (the added block is referred to as a fourth base unit communication unit), and the fourth base unit communication unit is connected. A wireless connection is established with the third master unit communication unit using the first master unit communication unit 11, the fourth master unit communication unit, and the third master unit communication unit, and thus the first slave unit 5a. Or 5b to the second outside line 2
It is possible to adopt a configuration in which a function for connecting to is added.

[0059]

The cordless telephone according to the present invention is the first
The first master unit has a first master unit communication section connected to the first external line and wirelessly connected to the first slave unit, and the second master unit has a first master unit communication unit. A third master unit communication section for making a wireless connection with a third master unit communication section or a second master unit communicating section for connecting a second outside line and making a wireless connection with a second slave unit. Thus, when the second slave uses the first outside line, the third master communication unit is connected to the second master communication unit and the third master communication unit and the first master unit are connected. Since the second cordless handset is connected to the first outside line by wirelessly connecting to the communication unit, the cordless handset corresponding to one parent unit is used to use the outside line connected to the other parent unit. It is possible to do.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of an embodiment of a cordless telephone of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of an embodiment of the first master unit of the present invention.

FIG. 3 is a block diagram showing an electrical configuration of an embodiment of a second master unit of the present invention.

FIG. 4 is a slave of the present invention (first slave and second slave).
FIG. 3 is a block diagram showing an electrical configuration of one embodiment.

FIG. 5 is a flowchart showing an operation of the first parent device.

FIG. 6 is a flowchart showing an operation of the second master unit.

[Explanation of symbols]

 1 1st outside line 2 2nd outside line 3 1st base unit 4 2nd base unit 5a, 5b 1st handset 6a, 6b 2nd handset 11 1st base unit communication part 32 2nd Master unit communication unit 33 Third master unit communication unit

Claims (1)

[Claims] 1. Out of the two outside lines, one of the outside lines is a first line.
Of the first external line and the other external line as the second external line
First external device connected to the first external device, a first external device wirelessly connected to the first external device, a second external device connected to a second external device, and the second external device. A cordless telephone including a second slave unit wirelessly connected to the master unit, wherein the first master unit includes a first master unit communication unit that wirelessly connects to the first slave unit. The second master unit is provided with a third master unit communication unit that wirelessly connects with the first master unit communication unit, and the third master unit communication unit is connected to the second master unit. A second base unit communication unit that wirelessly connects to the second handset unit is provided, and when the second handset unit uses the first outside line, the second base unit communication unit is provided with the third base unit communication unit. The cordless telephone set is characterized in that the master communication unit is connected, and the third master communication unit and the first master communication unit are wirelessly connected.