JP2541334B2 - Cordless phone system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in a certain area such as a golf course, a construction site, or a factory, and is composed of a plurality of child devices and one or more parent devices. Related cordless telephone systems (including in-flight wireless communication systems), more specifically, individual calls (one-to-one call) can be made when all slaves in the area are called (broadcast). Cordless telephone system.

[Conventional example] In recent years, cordless phones have been proposed as new home appliances by manufacturers. A cordless telephone is composed of a connection device (master device) and a handset (slave device) that are connected to a telephone line, and calls between them and signals such as an ID code and voice communication are transmitted and received by radio waves. Therefore, the connection device has a function of transmitting and receiving radio waves, and the handset also has a built-in radio wave transmitter and receiver. That is, the voice of the other party is converted from an electric signal into a radio signal by the connecting device and sent to the handset. On the contrary, the voice signal from the handset by the radio wave is converted from the radio wave signal into the electric signal by the connecting device and transmitted to the other party through the line.

By the way, although the above cordless telephone has a small power type for household use, which is a weak type for home use, both have a base unit and a handset.
The correspondence is one-to-one and it is not possible to use multiple slave units.

Therefore, there has been proposed a cordless telephone system having one new machine and N (arbitrary number) slaves, or M (arbitrary number) new ones and N slaves.
This cordless telephone system has a paging (broadcasting) function that allows all the handsets to be paging (broadcasting) and making a plaque for a predetermined period of time. Effective in some cases.

[Problems to be Solved by the Invention] However, in the above cordless telephone system, if individual numbers (ID codes) are not known when making individual calls, all the cordless handsets are sequentially called to make a call. There is a problem in that it takes time to search for a child device having materials.

Therefore, it is conceivable to use the above-mentioned simultaneous calling function to make a simultaneous call to all the slaves and then contact the slaves having the material by a simultaneous notification.

However, since the simultaneous call (simultaneous call) is a one-way call and is made during the set time, it is not possible to reply with the child device that has the material during that time, so the child who has the necessary material cannot answer. It may take some time to be able to make a call with the device, and it may be inconvenient that the call cannot be made with another child device.

The present invention has been made in view of the above problems, and an object thereof is to provide a cordless telephone system so that individual calls can be made immediately when a simultaneous call (broadcast call) is made, and a decrease in system efficiency can be suppressed. It is in.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a plurality of slave units used in a predetermined area, and a plurality of slave units arranged in the area and called between the slave units. In a cordless telephone system including at least one base unit that transmits and receives an ID code, voice communication, etc., and an exchange that connects the base unit with an extension telephone or an external telephone by a wired line, the extension telephone or When the slave unit calls all of the slave units other than the slave units or all the slave units except the slave unit (broadcast call), the paging slave unit (broadcast call) has a function of sending a call request signal by a predetermined operation. In addition, the master unit has a function of transmitting a call end signal for simultaneous calling (simultaneous notification) to all the slave units, and a child adapted to the condition notification by the general calling (simultaneous notification). When the above predetermined operation is performed in, a channel other than the channel of the simultaneous call (broadcast notification) is set between the slave unit of the predetermined operation and the master unit, and the simultaneous call of the master unit is performed ( The end signal of (broadcast) is sent to all the handsets,
The gist is to enable individual telephone calls by a handset that is operated in a predetermined manner.

[Operation] With the above configuration, a condition notification is issued when calling all the handsets or all the handsets other than the calling slave device (broadcast call), and a handset that conforms to this condition notification is used. When a predetermined operation is performed and a call request is issued, a channel other than the paging (broadcasting) channel is set between the child device and the parent device. At this time, the master unit transmits an end-call signal for ending the simultaneous call (broadcast notification) to all the slave units. Then, only the child device that issued the call request can be connected to the parent device, and by switching to the call channel that has been set, the extension that calls the slave device that issued the call request (broadcast call) It is possible to make a call possible with the telephone or the handset.

[Examples] Examples of the present invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, a base unit (connection device) 1 is provided in a predetermined area (for example, a site of a golf course or a factory), and a handset of a cordless telephone system is provided in the area.
There are a plurality of 2 ₁ , 2 ₂ and 2 ₃ units, and the base unit 1 is connected to the exchange 4 via a wired line (a plurality of extensions) 3, and the exchange 4 has an extension telephone 5 and an external line. The line is connected. In addition, the base unit 1 calls the handset units 2 ₁ , 2 ₂ , 2 ₃ within a predetermined area, and has a wireless control function of transmitting and receiving signals such as an ID code and voice communication through a control channel or a call channel, and a line connection with the exchange 4. It has a wired line control function and the like for performing. Further, the master unit 1 responds to a plurality of outgoing / incoming call radio functions and the simultaneous call operation by the extension telephone 5 or the simultaneous call operation by the slave unit, and all the slave units.
2 ₁ , 2 ₂ , 2 ₃ or paging call function to paging all the handsets except the calling paging device, and after the paging call, send a call end signal to other handset devices except the specified paging device It has the function to do. Furthermore, as shown in FIG. 2, the wireless handset 2 _1, 2 _2, 2 ₃ display device 6 similarly to the cordless telephone, and a push button 7 or the like is provided, also the paging (simultaneous Call button 7a
By the operation of, there is a function of requesting a call to the base unit 1.

As a supplementary note, the cordless telephone system employs a duplex system based on the MCA system (Multi-Channel Access system), and voice signals including various data transmissions within the voice band are performed.

Next, the operation of the cordless telephone system having the above configuration will be described based on the control procedure diagram of FIG.

First, those in extension telephone 6 side, it is assumed that the handset 2 ₁ having an article, for example, a need not know, paging operations such that the operation of the broadcast for numbers ( "00") is performed And Then, the signal of the broadcast number is input to the base unit 1 through the exchange 4 (shown in a in the figure),
The general call is transmitted from the master unit 1 to all the slave units 2 ₁ , 2 ₂ , and 2 ₃ via the control channel (shown by b in the same figure). As a result, all the slave units 2 ₁ , 2 ₂ , 2 ₃ receive the simultaneous call and enter the simultaneous notification receiving state. That is, a child machine
2 ₁ , 2 ₂ , 2 ₃ and base unit 1 are connected by a predetermined communication channel.

Subsequently, on the extension telephone 6 side, after the above-mentioned simultaneous call operation, when a simultaneous notification (conditional notification), for example, "a handset having materials for XX" is input by voice, the voice signal is output. It is transmitted to the slave units 2 ₁ , 2 ₂ and 2 ₃ through the master unit 1 (shown by c and d in the figure). Here, the slave unit that a to the condition, that call at handset 2 ₁ having the above article, a call button 7a is depressed (shown in e of FIG.), From the handset 2 ₁ A request signal is sent (shown in Fig. 5F). Then, between the base unit 1 and the handset 2 ₁ which issued the call request channel different from the channels of the paging (Problem simultaneous) is set. When that channel is set, base unit 1
At, a call end signal for sending a call (broadcast notification) to all of the slaves 2 ₂ and 2 ₃ is transmitted (shown in FIG. 7H). That is, there is no need to make a call to a child device other than the child device having the above-mentioned material, and wasteful time is wasted for those child devices, and other necessary telephone calls can be made. . Then, since only the child device 2 ₁ is connected to the parent device 1 by line, the call channel set to the above-mentioned child device 2 _{1 in the} parent device 1 is changed to the child device 2 ₁ and the extension telephone 5. Is placed in a call state. Thus, (call 1-one) individual calls to and from the extension telephones 5 side and the slave device 2 ₁ side becomes possible.

In this way, when making a simultaneous call (broadcast call), it is possible to make individual calls before the simultaneous call for a predetermined period of time is completed, so even if you do not know the handset that has the necessary materials, for example, You can use the call (simultaneous call) to immediately make an individual call with the desired handset, that is, you can contact immediately without knowing the handset ID code etc. that has the necessary materials in advance. , You can get the information you need instantly.

Further, when the extension telephone 5 performs a paging operation (for example, an input operation of a "00" number), the paging function is provided on the side of the base unit 1, but the paging function may be provided on the side of the exchange 4. .

In addition, even if it is not the extension telephone 5 but the handset that performs the paging (broadcast) and makes the condition notification, the call button 7a is operated after the paging (broadcast) similar to the extension telephone 5. It becomes possible to make an individual call with the slave unit.

In the cordless telephone system of the above embodiment, the case of the master unit and the slave units 2 ₁ , 2 ₂ , 2 ₃ has been described as an example, but the predetermined area is divided into a plurality of zones, and the master unit 1 in the zones is divided.
Even when there are a plurality of slave units, the same operation as above is performed.

[Effects of the Invention] As described above, according to the cordless telephone system of the present invention, a plurality of cordless handsets used in a predetermined area,
Placed in that area, call between those slaves,
A cordless telephone equipped with at least one base unit that sends and receives an ID code, voice communication, etc., and an exchange that connects the base unit to an extension line telephone or an external line telephone by a wired line. At the time of (broadcast notification), the paging destination slave device has a function of sending a call request signal by a predetermined operation, and the master device sets a channel other than the paging (broadcast notification) channel with the slave device. And, after the setting, it has the function to send the end signal of the simultaneous call (simultaneous notification) to all the slaves, and the predetermined operation is performed on the slaves that are suitable for the condition notification by the simultaneous call (simultaneous notification). When a call request is issued and the call request is issued, the end signal of the simultaneous call (broadcast) is issued by the master unit, so if you do not know the ID code of the slave unit you want to call, If you do not know the child device that has the material, you can use conditional call by simultaneous call (simultaneous call)
There is an effect that the slave unit having the necessary information can respond immediately and the other slave units are prevented from wasting time and the system efficiency can be suppressed from decreasing.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a cordless telephone system showing an embodiment of the present invention, FIG. 2 is a schematic partial front view of a slave unit used in the cordless telephone system, and FIG. 3 is a schematic diagram of the cordless telephone system. It is a control procedure figure for explaining operation. In the figure, 1 is a master unit, 2 ₁ , 2 ₂ , 2 ₃ are slave units (handsets), 3
Is a wired line (extension), 4 is an exchange, 5 is an extension telephone, and 6
Is a display device, 7 is a push button, and 7a is a call button.

Claims (1)

(57) [Claims] 1. A plurality of cordless handsets used in a predetermined area, and a plurality of cordless handsets arranged in the area and called between the cordless handsets and IDs.
In a cordless telephone system including at least one master unit for exchanging cords, voice communication, etc., and an exchange for connecting the master unit and an extension telephone or an external telephone with a wired line, the extension telephone or the When the slave unit makes a simultaneous call (broadcast notification) to the plurality of slave units or all the slave units except the slave unit, the simultaneous call (broadcast notification)
The first slave unit has a function of transmitting a call request signal by a predetermined operation, and the master unit has a function of transmitting an end signal of a simultaneous call (broadcast notification) to all the slave units. When the predetermined operation is performed on the slave unit that is suitable for the condition notification by (simultaneous notification), a channel other than the channel for the general call (simultaneous notification) is set between the slave unit and the master unit that have performed the predetermined operation. The cordless telephone system is characterized in that the end signal of simultaneous call (simultaneous notification) is transmitted to all the slaves by the master, and individual calls can be made by the slaves of a predetermined operation.