JP3075795B2 - Wireless communication device and wireless communication system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication apparatus which enables radio communication between radio apparatuses of different radio communication apparatuses.

[0002]

2. Description of the Related Art Conventionally, there has been a case where a branch connection is mainly made in a wired telephone.

FIG. 6 is a diagram showing an example of branch connection in a wired telephone. In FIG. 6, a wired telephone 611 is shown.
６ 613 are connected in a branch, and if the system is capable of making extension calls, they can make extension calls with each other.

However, wired systems are expensive and require the purchase of the entire system. Furthermore, installation work is required because of the wired connection.

FIG. 7 is a diagram showing a branch connection when a cordless telephone as a wireless communication device is used. The branch connection in FIG. 7 shows a general method, in which a branch wired telephone 730 and cordless telephones 720, 721, 722 are branch connected. If the system does not allow extension calls, the branch wired telephone 730 and the cordless telephones 720, 721, 722
Cannot make extension calls. Of course, extension calls within a cordless telephone are possible.

By the way, in consideration of the recent housing situation where two-family houses are increasing, the situation of each household tends to be independent, but there is still a part to be shared. As for telephones, there is a tendency to use the telephones independently and charge different telephone line charges.

However, conversely, since the telephone is used independently and the telephone line fee is set separately, it is possible to share the intercom, and it is possible to use the intercom for the independent telephone, which is possible when the telephone line is shared. There is a problem that calls cannot be made. In this case, if a call is desired, the call is made via a public line.

[0008] That is, the extension call by the branch connection of the telephone requires construction work for the wired telephone, requires the purchase of the whole system, and is expensive for general users. Also, with a cordless telephone, only an extension call within the parent device, which is one connection device, is possible. In consideration of recent housing circumstances, in a two-family house, each household is connected to an independent telephone line. There is a problem in that it is not possible to answer a request for a call between slave units, which is a call between wireless units, which is a wireless unit.

[0009]

As described above, in the past, an extension call through a branch connection requires construction work in the case of a wired telephone, requires the purchase of the entire system, and is expensive for general users. there were. Further, in a cordless telephone, there is a problem that an extension call within one cordless telephone is possible, but a call between handset units cannot be made between cordless telephones connected to different telephone lines.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above problem and to provide a radio communication device capable of making a radio communication between different radio communication devices.

[0011]

According to a first aspect of the present invention, there is provided a communication apparatus comprising: a connection device connected to a telephone line; and a plurality of wireless devices connected to the connection device by a wireless line. In the wireless communication device capable of communicating with each other via the connection device, the plurality of wireless devices may include a specific wireless device among the plurality of wireless devices, and another wireless device adjacent to its own identification code. While setting the identification code of the wireless communication device,
Providing a wireless unit that connects to the connection device of the other wireless communication device by a wireless line, between the wireless device and the wireless device of the other wireless communication device, the connection device, via the specific wireless device It is characterized by making a call between wireless devices. Further, the invention of claim 2 has a first connection device connected to a telephone line, and a plurality of first wireless devices connected to the first connection device by a wireless line. The first wireless device includes a first wireless communication device capable of communicating with each other via the first connection device, a second connection device connected to the telephone line, and a wireless connection between the second connection device and the second connection device. A plurality of second wireless devices connected by a line, wherein the plurality of second wireless devices can communicate with each other via the second connection device; A third wireless device connected to the first connection device by a wireless line and connected to the second connection device by a wireless line, wherein the first wireless device and the second wireless device A call between the wireless devices via the first connection device, the third wireless device, and the second connection device And wherein the door.

[0012]

According to a first aspect of the present invention, there is provided a connecting device connected to a telephone line, and a plurality of wireless devices connected to the connecting device by a wireless line, wherein the plurality of wireless devices are connected via the connecting device. A wireless communication device capable of communicating with each other by setting an identification code of its own device and an identification code of another wireless communication device adjacent thereto to a specific one of the plurality of wireless devices, and Since a wireless unit that connects to the connection device of the wireless communication device by a wireless line is provided, between the wireless device and the wireless device of the other wireless communication device, the connection device, via the specific wireless device A call can be made between wireless devices.
Further, the invention of claim 2 has a first connection device connected to a telephone line, and a plurality of first wireless devices connected to the first connection device by a wireless line. The first wireless device includes a first wireless communication device capable of communicating with each other via the first connection device, a second connection device connected to the telephone line, and a wireless connection between the second connection device and the second connection device. A plurality of second wireless devices connected by a line, wherein the plurality of second wireless devices can communicate with each other via the second connection device; Since it has a third wireless device connected to the first connection device by a wireless line and connected to the second connection device by a wireless line,
Inter-radio communication can be performed between the first radio and the second radio via the first connection device, the third radio, and the second connection device. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a connection state example of a cordless telephone according to an embodiment of the present invention. In FIG.
The base unit B1 of the first cordless telephone is an original slave unit TE.
It has a slave unit TEL0 that is common to L1 and TEL2, forms an identification group by a group identification code 'B1', and is connected to an outside line C1. In addition, the base unit B2 of the second cordless telephone has a child unit TEL0 common to the child units TEL3 and TEL4, and forms an identification group different from the first cordless telephone by the group identification code 'B2'. And is connected to the outside line C2. In such a configuration, a telephone set (not shown) and the slave unit TEL1 (11) via the external line C1, or a common slave unit TEL0
The connection with (14) and the connection between the slave unit TEL1 and the slave unit TEL2 (12) via the master unit B1 or between the slave unit TEL2 and the common slave unit TEL0 (13) are possible. Similarly, on the identification group 'B2' side, a telephone (not shown) is connected to the slave unit TEL4 (21) or the common slave unit TEL0 (24) via the external line C2, and the master unit B2 is connected.
It is possible to connect the slave unit TEL4 and the slave unit TEL3 (22) or the slave unit TEL0 (23) common to the slave unit TEL3 via the terminal. Further, according to the present invention, it is possible to connect the slave unit TEL1 of the identification group 'B1' and the slave unit TEL4 of the identification group 'B2' via the master unit B1, the common slave unit TEL0, and the master unit B2.

FIG. 2 is a detailed block diagram of the master unit B1 or the master unit B2 according to the present embodiment. First, a calling signal input from the outside line 200 is detected by the bell detection circuit 210 and input to the control unit 230. The control unit 230 includes the first
After determining whether to use the wireless unit 237 or the second wireless unit 238, a wireless line with the slave unit is established using the determined wireless unit. For example, when the first wireless unit 237 is used, the first wireless unit 2
After searching for a vacant channel from the antenna 37 via the antenna 239, the wireless line with the partner handset is switched to the communication channel, control data is transmitted and received by the first control signal transmission / reception unit 231 and off-hook of the partner handset is performed. Establishes a wireless line between the slave unit and the master unit. At this time, the control unit 2
30 connects the line ON / OFF circuit 209, and connects the first wireless unit 237 to the outside line 200 by the control switch 206 and the slave unit selection 207. In this way, a telephone line connected to the external line 200 establishes a communication line with the child device via the parent device by the call input from the external line 200. The audio signal between the telephone connected to the outside line 200 and the responding slave is transmitted to the diode bridge 2 of the master.
01, switch 20, anti-slip circuit 202, amplifier circuit 20
3. Communication path switch 205, baseband audio circuit 23
5, connected to a wireless line via the first wireless unit 237 and the antenna 239, and transmitted to and received from the slave unit.

The identification group code of the parent device is stored in its own device and its own identification code memory, and has the identification number of the child device having the identification group code of this parent device and the identification group code of another parent device. The identification numbers of the slaves are stored in the slave control memory 221 of the master B1 and the slave control memory 222 of the master B2.
And is referred to at any time, for example, during a call between slave units. Further, the handset control memory 221 of the base unit B1, the handset control memory 222 of the base unit B2, and the master unit and own unit identification code memory 220 are input by the key input unit 210.

In the case of a telephone call between slave units, the communication is performed by a wireless line established between the first wireless unit 237 and the second wireless unit 238 and the slave unit via the communication path switch 205 switched by the control unit 230. Will be

FIG. 3 is a detailed block diagram of the common slave unit according to the present embodiment. The common slave unit is basically the same in configuration as the master unit except that it is not connected to an outside line. That is, it has two wireless units 337 and 338. However, since the common slave unit has a function of wirelessly connecting between different identification groups in addition to the function of the original slave unit, the common slave unit has a group identification code of both of the different identification groups, and has a different identification code. The group has a common handset identification number. The two group identification codes for wireless relay and the identification numbers of the slaves in each identification group are stored in the memories 321 to 324. These memories can be input from the key input unit 311 and can be displayed on the display unit 302. The communication path switch 305 is connected to the line 350 on the headset 301 side and the line 3 on the first wireless unit 337 in order to perform the function of the original slave unit.
51 or the second wireless unit 338 side line 352 can be connected. In addition, in order to exhibit a wireless relay function, the line 351 on the first wireless unit 337 and the line 352 on the second wireless unit 338 can be connected. The control unit 330 controls switching of the communication path switch 305 and the wireless control units 332 and 33
4 and control / data processing of the control signal transmission / reception units 331 and 333, and read / write control of the memories 321 to 324.

Next, the state of the identification memory of each device will be described. FIG. 4 is a diagram showing identification codes and numbers stored in the memory of each component device in FIG.
The identification group is an identification group 'B centered on the master unit B1.
1 'and an identification group' B2 'centered on the master unit B2. The master unit B1, the slave units TEL1 and TEL2 have a group identification code 'B1', and the master unit B2, the slave unit TEL3 and the slave unit TEL4 have a group identification code 'B2'. Also,
The common slave unit TEL0 has group identification codes' B1 'and'
B2 ′. Regarding the own device identification number in the identification group, the child device TE in the identification group 'B1'
L1 is “1”, slave unit TEL2 is “2”, slave unit TEL3 in identification group “B2” is “1”, slave unit TEL4
Is "2", and the child device TEL0 common to the identification groups "B1" and "B2" has a common own device identification number "0". Therefore, each component device is identified by the group identification code and the intra-group identification number. For example, slave unit T
EL3 is identified by the group identification code “B2” and the in-group own device identification number “1”. As for the memories of the respective devices, the slave units TEL1 to TEL4 only need to identify the own unit. Therefore, the slave units TEL1 to TEL4 have memories only of the own group identification code and the own group identification number. In addition to the identification codes, other group identification codes are stored in the memory as other group identification codes, and the identification numbers of the slaves connected in each group identification are combined and stored in the memory. Further, since the common slave has a wireless relay function, it has the same memory as the masters B1 and B2.

FIG. 5 is a connection sequence diagram when a call is made from slave unit TEL1 to slave unit TEL4 in FIG.
Hereinafter, with reference to FIG. 5, the child device TE of the identification group 'B1'
The connection when a call is made from L1 to the slave unit TEL4 of the identification group 'B2' will be described. In FIG. 5, a broken line indicates transmission on a control channel, and a solid line indicates transmission on a communication channel.

First, the slave unit TEL1 designates and calls the slave unit TEL4 by inputting the key "B2", which is the group identification code of the identification group to which the slave unit TEL4 belongs, and the slave unit identification number "2". . The outgoing call signal of the slave unit TEL1 is received by the first wireless unit of the master unit B1, and after searching for an empty channel, the master unit B1 transmits a call response signal including a communication channel designation to the slave unit TEL1. Send and switch to the call channel. Slave unit T that has received the call response signal
EL1 is also switched to the communication channel, and after confirming that it is an empty channel, a communication channel switching completion signal is transmitted to master unit B1. Upon receiving the communication channel switching completion signal, master unit B1 responds and sends a response signal to slave unit TEL1.
Send to The slave unit TEL1 that has received the response signal connects the audio path. Thus, first, the audio line between the slave unit TEL1 and the master unit B1 is connected.

Next, the base unit B1 transmits a call signal including a communication channel designation, a group identification designation 'B2', and a slave identification designation '2' from the second wireless unit to the common slave unit TEL0. The common handset TEL0 receives the call signal by the first wireless unit of the common handset, switches to the designated communication channel, and transmits a response signal to the base unit B1. Master unit B1 is also second
The communication channel of the wireless unit is switched to the communication channel. Further, the common handset TEL0 transmits a communication channel switching completion signal to the main handset B1, and after receiving the signal, the main handset B1 connects an audio path and transmits a response signal to the common handset TEL.
Send to 0. Common slave unit TEL0 receiving the response signal
Connects the audio paths.

Further, the common slave unit TEL0 transmits a call signal including the group identification designation "B2" and the slave identification designation "2" from the second radio unit to the master unit B2. Base unit 2 transmits a response signal including a communication channel designation by the first wireless unit,
Switch to the call channel. After receiving the response signal, common terminal TEL0 switches to the designated communication channel, and then transmits a communication channel switching completion signal to base unit B2. The master unit B2 that has received the call channel switching completion signal transmits a response signal to the common slave unit TEL0 after connecting the audio path.
The slave unit TEL0 that has received the response signal connects the audio path.

Further, the base unit B2 transmits a call signal including the communication channel designation, the group identification designation "B2", and the child unit identification designation "2" to the child unit TEL4 by the second radio unit. The slave unit TEL4 transmits a response signal to the master unit B2, switches to the designated communication channel, confirms that the channel is empty, and transmits a communication channel switching completion signal to the master unit B2 again. . After receiving the response signal from child device TEL4, master device B2 switches to the communication channel, and after receiving the communication channel switching completion signal, shifts to the link sequence. That is, master unit B2
Transmits a calling signal to the child device TEL4,
L4 transmits a response signal to base unit B2 by an off-hook response to the call signal. Upon receiving the response signal, master unit B2 connects the audio path and transmits an audio path ON signal to slave unit TEL4. The handset TEL4 is connected to the audio path O
The audio path is connected by receiving the N signal.

Thus, the slave unit T via the wireless line
A voice line is established between EL1 and slave unit TEL4, and a telephone call becomes possible. That is, communication between child devices between different identification groups becomes possible. Thereafter, the end signal is transmitted to the connected devices by on-hook, and the voice path is released.

The outgoing call in the case of the inter-slave unit call is an individual call to the slave unit TEL4 of the master unit B2.
A call may be made from EL1 to all the slaves within the group identification 'B2'.

The common handset TEL0 has a plurality of radio units unlike other normal handset, but there is a problem in sharing the common handset with other normal handset. In this case, it is possible to make the wireless unit of the slave unit an option so that all the slave units can become a common slave unit by attaching the wireless unit unit, and two ordinary slave units can be connected by wire. It is also possible to use two slave units as a common slave unit.

The case where the master unit B2 cannot communicate with the slave unit may be used. In other words, even when there is one slave unit of the master unit B2 and one of the slave units is used as a common slave unit,
A call between the handset of the slave unit TEL1 and the handset of the master unit B2 is possible.

When a door phone is connected to the base unit, a common door phone can be used if all the sub units are set to be called. In particular, separate telephone lines are used in a two-family house. It is convenient when you have.

[0030]

As described above, the first aspect of the present invention has a connecting device connected to a telephone line and a plurality of wireless devices connected to the connecting device by a wireless line. A wireless communication device capable of communicating with each other via said connection device, wherein a specific wireless device among said plurality of wireless devices is provided with an identification code of its own device and an identification code of another wireless communication device adjacent thereto; And, since a wireless unit is provided to connect to the connection device of the other wireless communication device by a wireless line, between the wireless device and the wireless device of the other wireless communication device, the connection device, The communication between the wireless devices can be performed via the specific wireless device. Further, the invention of claim 2 has a first connection device connected to a telephone line, and a plurality of first wireless devices connected to the first connection device by a wireless line. A first wireless device, a first wireless communication device capable of communicating with each other via the first connection device;
A second connection device connected to the telephone line, and a plurality of second wireless devices connected to the second connection device by a wireless line, wherein the plurality of second wireless devices are A second wireless communication device capable of communicating with each other via the second connection device;
A third connection device connected to the first connection device by a wireless line and a third connection device connected to the second connection device by a wireless circuit;
The first connection device, the third wireless device, and the second connection device between the first wireless device and the second wireless device. Communication between the wireless devices can be performed via the terminal.

[0031] Therefore, there is an advantage that a call between wireless devices of different wireless communication devices can be economically realized without requiring any construction and without using a public line.

Another advantage is that the communication distance between wireless devices is doubled. Specifically, the communication distance of a wireless communication device, for example, the communication distance of a cordless telephone is 200 m in line-of-sight distance, but the line-of-sight distance is 40 m
0 m.

In particular, when the offices are spatially separated and within a range where a common radio can be shared, there is an advantage that the mutual communication becomes simple and convenient.

Furthermore, since the function of each wireless communication device, for example, each cordless telephone is not impaired, in a two-family house, when each household has an independent telephone line, and the telephone fee is separately charged. It has the advantage of being able to communicate with each other regardless of the telephone charge when paying. Further, as an application, there is an advantage that a door phone can be shared.

Further, as described above, since each wireless communication device functions independently, there is an advantage that a general consumer can purchase a wireless communication device of a desired design, for example, a cordless telephone together with the telephone.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a connection state of a cordless telephone according to an embodiment of the present invention.

FIG. 2 is a detailed configuration block diagram of a master unit according to the embodiment.

FIG. 3 is a detailed configuration block diagram of a common slave unit according to the embodiment.

FIG. 4 is a diagram showing identification codes and numbers stored in a memory of each component device in FIG. 1;

FIG. 5 is a connection sequence diagram when a call is made from slave unit TEL1 to slave unit TEL4 in FIG. 1;

FIG. 6 is a diagram showing an example of branch connection in a wired telephone.

FIG. 7 is a diagram showing a branch connection when a cordless telephone is used.

[Explanation of symbols]

10-14, 21-24 Connection state B1, B2 Master unit C1, C2 Telephone line IDB1, IDB2 Range of identification group TEL1-TEL4 Slave unit TEL0 Common slave unit 200 Telephone line 201 Diode bridge 202 Soundproof circuit 203 Amplifier circuit 204 Hold sound generation circuit 205, 305 Communication path switch 206 Control switch 207 Handset selection circuit 208 Handset communication circuit 209 Line ON / OFF circuit 210 Bell detection circuit 211, 311 Key input unit 220-222, 321-324 Memory 230, 330 control section 231,233,331,333 control signal transmission / reception section 232,234,332,334 radio control section 235,236,335,336 baseband audio circuit 237,238,337,338 radio section 239,240,339, 340 Antenna SW1 to SW11, SW20 Switch 301 Headset 350 to 352 Communication path 302 Display unit 341, 342 Adder 601, 611 to 613, 701, 730 Wired telephone 600, 700 Exchanger 610, 710 Telephone line 720-722 Cordless telephone

Continuation of the front page (56) References JP-A-61-72422 (JP, A) JP-A-62-257227 (JP, A) JP-A-2-241129 (JP, A) JP-A-4-81134 (JP) JP-A-3-212032 (JP, A) JP-A-3-114321 (JP, A) JP-A-3-62631 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) H04B 7/14-7/26 H04Q 7/06-7/38

Claims (2)

(57) [Claims] 1. A connection device connected to a telephone line, and a plurality of wireless devices connected to the connection device by a wireless line, wherein the plurality of wireless devices can communicate with each other via the connection device. In a possible wireless communication device, an identification code of its own device and an identification code of another adjacent wireless communication device are set to a specific wireless device of the plurality of wireless devices, and connection of the other wireless communication device is performed. Providing a wireless unit connected to the device by a wireless line, between the wireless device and the wireless device of the other wireless communication device,
A wireless communication device for performing a communication between wireless devices via the connection device and the specific wireless device. 2. A wireless communication system comprising: a first connection device connected to a telephone line; and a plurality of first wireless devices connected to the first connection device by a wireless line. Is a first wireless communication device capable of communicating with each other via the first connection device; a second connection device connected to the telephone line; and a second connection device connected to the second connection device by a wireless line. A plurality of second wireless devices, wherein the plurality of second wireless devices are capable of communicating with each other via the second connection device; and A third connected to the connection device by a wireless line and connected to the second connection device by a wireless line
Wireless device between the first wireless device and the second wireless device via the first connecting device, the third wireless device, and the second connecting device. A wireless communication system for performing an inter-machine call.