JP2001285468A - Mobile radio telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable voice communication to be performed by using a public telephone set without using the handset of the public telephone set by utilizing a portable telephone set. SOLUTION: The portable telephone set 1 is connected to the data port of an ISDN 4 complying public telephone 3 through an adapter 2. In the case of performing communication by using the ISDN 4, the telephone set 1 sets a communication channel between the opposite communication telephone set 5 and a portable telephone 1 by making a call-out to the ISDN 4 through the adapter 2 and the telephone 3 not through a radio base station. The speech communication is performed between the portable telephone 1 and the telephone set 5 by transmitting/receiving voice data on the communication channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radiotelephone such as a portable telephone, which is used for ISDN (Integrated Services of D
The present invention relates to a technology using a public network to which a public telephone is connected.

[0002]

2. Description of the Related Art In recent years, mobile radio telephones such as portable telephones and PHSs have become widespread.

[0003] Generally, these mobile radio telephones store an address book in which a large number of telephone numbers can be registered, and can make a call by selecting an arbitrary telephone number registered in the address book. I have.

On the other hand, public telephones compatible with ISDN are becoming popular. Some of these ISDN-compatible public telephones are provided with a data port, an analog port, and an infrared interface. Then, the user connects the information equipment on hand to these ports,
Data communication using the ISDN of the information device can be performed.

[0005]

When going out, there is a case where a user wants to make a call using a public telephone instead of a portable telephone even if he / she has a portable telephone. This is a case where the user wants to talk in a quiet and calm environment in the telephone booth, or a case where the call charge is cheaper using a public telephone.

However, when making a call using a public telephone as described above, since the address book of the portable telephone cannot be used, it takes time to check and input the telephone number of the other party. In addition, some people may feel hygiene resistance to using a public telephone handset used by an unspecified number of people.

Accordingly, an object of the present invention is to make it possible to use a portable telephone to make a call using the public telephone without using a handset of the public telephone. For example, an object is to enable a user to perform communication using a public telephone using a telephone number registered in a mobile telephone.

[0008]

In order to achieve the above object,
A mobile radio telephone system according to the present invention includes a voice processing unit for processing voice communication, a first communication processing unit for providing a communication function using a mobile radio communication network, and a communication using a wired public telephone network. A second communication processing unit that provides a function, and a communication function used for communication of audio processed by the audio processing unit,
A control unit that selectively switches a communication function provided by the first communication processing unit and a communication function provided by the second communication processing unit.

According to such a mobile radio telephone, communication can be performed by selecting both the mobile radio communication network and the public telephone network. Therefore, if such a mobile radio telephone is connected to a data port of a public telephone that is connected to a public telephone network (for example, ISDN), it is possible to make a call using the public telephone without using a handset of the public telephone. Become. Also, by doing so,
Since it can be done from a mobile radio telephone,
Communication using a public telephone can be performed using the telephone number registered in the mobile radio telephone as it is.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 shows a use form of a public telephone of a portable telephone to which one embodiment of the present invention is applied. In the figure, reference numeral 1 denotes a mobile telephone, reference numeral 2 denotes an adapter, reference numeral 3 denotes a public telephone, reference numeral 4 denotes an ISDN, and reference numeral 5 denotes a communication partner telephone of the mobile telephone 1.

As shown, in the present embodiment, a portable telephone 1 is connected to a data port of a public telephone 3 via an adapter 2. Thereby, one mobile phone and the telephone 5
Make a call to and from. Here, the data port of the public telephone 3 corresponds to an ISDN S / T point, and a BRI (Basic Rate) of ISDN4.
Interface).

Next, FIG. 2 shows the configuration of the mobile phone 1. As shown in FIG.

As shown in the figure, the portable telephone 1 has a key group 1.
01, display 102, memory 103, man-machine interface control unit 104, main control unit 105, connector monitoring unit 106, wireless communication control unit 107, ISDN
Layer 3 control unit 108 and ISDN-B channel control unit 111
, A serial transmission control unit 109, a connector 110,
An audio processing unit 112, a microphone 113, and a speaker 114 are provided.

Next, FIG. 3 shows a configuration of the adapter 2.

As shown in the figure, the adapter 2 includes a connector 14, a serial transmission control unit 13, and ISDN layers 1 and 2.
It has a control unit 12 and a modular plug 11.

In such a configuration, the modular plug 11 of the adapter 2 is a plug conforming to ISO IS8877 and can be connected to the data port of the public telephone 3.

The connector 14 of the adapter 2 and the connector 110 of the mobile phone 1 are corresponding connectors.
Both can be connected freely.

FIG. 4 shows an example of signal arrangement of the connector 110 and the connector 14.

As shown, in this signal arrangement example, 1
A serial signal ground terminal of the 9th and 9th pins,
Using the 6th and 7th communication serial data terminals, bidirectional serial data transmission is possible between the serial transmission control unit 109 of the mobile phone 1 and the serial transmission control 13 of the adapter 2. . Further, the adapter 2 can notify the mobile phone 1 of its own connection by using the presence or absence of the unit of the 14th pin.

This connector is also used for connecting other devices such as a personal computer, connecting a charger of the mobile phone 1, and the like. Thus, the transmission audio signal of the second pin, the transmission / reception audio signal ground of the third pin, the frame signal of the fourth pin, the clock signal of the fifth pin, the terminal for the charging circuit of the eighth pin, and the reception audio signal of the tenth pin , 15
It also has a unit power supply control of pin No. 16, a charge circuit terminal of pin No. 16, and the like.

Hereinafter, such a mobile phone 1 and an adapter 2 will be described.
The operation of will be described.

First, the operation of the mobile phone 1 when the adapter 2 is not connected will be described.

In this case, in the mobile phone 1, the connector monitoring unit 106 identifies that the adapter 2 is not connected to the connector 1 from the unit presence / absence signal of the 14th pin of the connector 110, and notifies the main control unit 105. I do.

The main control unit 105 sets the normal mode as the operation mode of the mobile phone 1 while the notification from the connector monitoring unit 106 recognizes that the adapter 2 is not connected.

In the normal mode, the main controller 1
05 controls the mobile phone 1 to operate like a conventional mobile phone.

That is, if the receiving party's telephone number and the call originating instruction are received via the man-machine interface control unit 104 by pressing down the keys of the key group 101,
The wireless communication control unit 107 causes a call procedure to the designated telephone number to be executed with the wireless base station to set a call.
Further, the data obtained by processing the audio signal input from the microphone 113 by the audio processing unit 112 is transmitted to the wireless communication control unit 1.
07, and transmits the data received by the wireless communication control unit 107 on the call to the voice processing unit 112.
, And an audio signal is output from the speaker 114. Here, the receiving side telephone number is received by receiving a telephone number directly input by a dial button included in the key group 101 as the receiving side telephone number, and in response to a predetermined key of the key group 101 being pressed down. The telephone number and other registration information registered in the address book stored in the memory 103 in advance are displayed on the display 102, and when a predetermined key of the key group 101 is depressed, a telephone number is selected therefrom. And receiving the selected telephone number as the destination telephone number.

On the other hand, when a call is received from radio base station to radio communication control section 107, main control section 105 outputs a ringtone from speaker 114. Thereafter, when an off-hook due to the pressing of the keys of the key group 101 is notified via the man-machine interface control unit 104, the radio communication control unit 107 executes a predetermined call setting procedure with the radio base station to place a call. Let it be set. In addition, the audio processing unit 112 transmits data obtained by processing the audio signal input from the microphone 113 onto the call using the wireless communication control unit 107, and converts the data received on the call by the wireless communication control unit 107 into audio. The processing unit 112 causes the processing unit 112 to output the audio signal from the speaker 114.

Then, in a state where a call is set, an on-hook due to depression of a key of the key group 101 is notified via the man-machine interface control unit 104 or the radio communication control unit 107 disconnects the call. When notified that the request has been received, the control unit 107 causes the wireless communication control unit 107 to execute a predetermined call disconnection procedure to disconnect the call.

Next, the operation of the mobile phone 1 and the adapter 2 when the adapter 2 is connected to the mobile phone 1 will be described.

In this case, the serial transmission control unit 13 of the adapter 2 sends a predetermined signal to the unit presence / absence signal of the 14th pin of the connector 14.

On the other hand, in the portable telephone 1, the connector monitoring unit 106 identifies that the adapter 2 is connected to the connector 1 from the unit presence / absence signal of the 14th pin of the connector 110, and notifies the main control unit 105. .

While the adapter monitor 2 recognizes that the adapter 2 is connected from the notification from the connector monitor 106, the main control unit 105 sets the operation mode of the mobile phone 1 to the ISDN use mode.

Then, in the ISDN use mode, the main control unit 105 first displays on the display 102 that the mode is the ISDN mode. Then, as in the case of the normal mode, if the receiving side telephone number and the calling instruction are received via the man-machine interface control unit 104 by depressing the keys of the key group 101, the ISDN layer 3 control unit 108
Is instructed to make a call to the called telephone number. As described above, the reception of the called party telephone number is performed by accepting the telephone number directly input by the dial button included in the key group 101 as the called party telephone number.
1 in response to the depression of a predetermined key.
The telephone number and other registration information registered in the address book stored in the display unit 102 are displayed on the display 102, and the key group 1
In response to the depression of the predetermined key 01, selection of a telephone number is accepted from among them, and the selected telephone number is accepted as a destination telephone number.

Here, the serial transmission control unit 109 of the mobile phone 1 and the serial transmission control unit 13 of the adapter 2 perform bidirectional serial data transmission using the serial transmission path formed by the connectors 110 and 14 described above. .
In addition, this serial transmission is performed by using a transmission line to perform bidirectional data transmission between the ISDN layer 3 control unit 108 of the mobile phone 1 and the ISDN layer 1.2 control unit 12 of the adapter 2;
ISDN-B channel control unit 111 of mobile phone 1 and adapter 2
It relays bidirectional data transmission with the ISDN layer 1/2 control unit 12. Also, ISDN layers 1 and 2 of adapter 2
The control unit 12 executes the processing of the ISDN layers 1 and 2 and executes the BDN on the ISDN4 BRI provided by the data port of the public telephone 3.
Establish a channel and a transmission channel of the D channel, and set up a data link between the D channel and the ISDN4.

The ISDN layer 3 control unit 108 which has been instructed to make a call transmits the IS
An ISDN layer 3 call control procedure is executed with the ISDN 4 on the data link with the DN 3 to establish a call with the called telephone 4.

When the call is established, the main control unit 1
Reference numeral 05 denotes data obtained by processing the audio signal input from the microphone 113 by the audio processing unit 112 to the ISDN layer 1-2 control unit 12 of the adapter 2 via the ISDN-B channel control unit 111, Port provide
The transmission is performed on the B channel used for the call on the BRI of ISDN4. Also, the ISDN layer 1-2 control unit 12 of the adapter 2
Transmits the data received on the B channel used for the call to the ISD
The signal is sent to the audio processing unit 112 via the NB channel control unit 111, restored to an audio signal, and output from the speaker 114.

Then, in a state where a call is set, an on-hook by pressing down a key of the key group 101 is notified via the man-machine interface control unit 104 or the ISDN layer 1.2 control unit 12,
When notified that the call disconnection request has been received via the ISDN layer 3 control unit 108, the main control unit 105
The layer 3 control unit 108 informs the ISDN layer 1/2 control unit 12 of a predetermined call disconnection procedure on the data link with ISDN3.
And the call is disconnected.

Here, such a mobile phone 1 is used.
FIG. 5 shows a sequence of a procedure for making a call to ISDN 4.

As shown in the figure, a user's call instruction (3
In response to (7), when the main control unit 105 instructs the ISDN layer 3 control unit 108 to make a call to the called telephone number (3)
8), the ISDN layer 3 control unit 108
Call setup message to ISDN4 via control unit 12 (39)
Send Thereafter, a call setup acceptance message (41) is received, and the call message (43) is sent to the ISDN layer 1.2.
When the call is received from ISDN4 via the control unit 12, a call (44) is notified to the main control unit 105. The main control unit 105 having been notified that the call is being made is performed by the speaker 114 through the ringing tone (4).
5) is output.

Thereafter, the ISDN layer 3 control unit 10
8 receives a response message (46) from ISDN4 via the ISDN layer 1/2 control unit 12,
7) is notified to the main control unit 105. The main control unit 105 notified of the response stops the output of the ringing tone, causes the data of the voice signal input from the microphone 113 to be transmitted on the B channel, and converts the data received on the B channel into the voice signal as described above. And output from the speaker 114.

Next, an operation when a call is received from the wireless base station to the wireless communication control unit 107 in the ISDN mode will be described.

In this case, the main control unit 105 performs the same control as in the above-described normal mode unless the communication using the ISDN 4 is being performed as described above.

On the other hand, if the communication using the ISDN 4 is being performed, the main control unit 10 notified of the incoming call from the wireless communication control unit 107
5 outputs a sound indicating an incoming call from the speaker 114. After that, if an operation of instructing an interrupt call by depressing a predetermined key of the key group 101 is performed, the main control unit 105 generates data representing a predetermined hold tone in the ISDN-B channel control unit 111. Let's have ISDN Layers 1 and 2
The control unit 12 is made to transmit. In addition, the audio processing unit 112 transmits data obtained by processing the audio signal input from the microphone 113 onto the call using the wireless communication control unit 107, and converts the data received on the call by the wireless communication control unit 107 into audio. The processing is performed by the processing unit 112, and the audio signal is output from the speaker 114. That is, control is performed so that the call on the ISDN4 side is put on hold and the call on the wireless base station side is started.

After that, when an operation for instructing the release of the interrupt by depressing a predetermined key of the key group 101 is performed, the main control unit 105
Performs a predetermined call disconnection procedure to disconnect the call. The data obtained by processing the audio signal input from the microphone 113 by the audio processing unit 112 is sent to the ISDN layer 1.2 control unit 12 of the adapter 2 via the ISDN-B channel control unit 111, and the data port of the public telephone 3 is transmitted. IS provided by
In addition to transmitting the data on the B channel used for the call on the BRI of DN4, the ISDN layer 1.2 control unit 12 of the adapter 2 transmits the data received on the B channel used for the call to the ISDN-B
Sent to the audio processing unit 112 via the channel control unit 111,
The audio signal is restored and output from the speaker 114.
That is, control is performed such that the call on the wireless base station side is disconnected and the call on the ISDN4 side is restarted.

The embodiment of the present invention has been described above.

In the above, the IS provided on the mobile phone 1 side
DN layer 3 control unit 108, ISDN-B channel control unit 111
May be provided on the adapter 2 side as shown in FIG. In this case, the configuration of the adapter 2 is equivalent to that of a TA having a serial data port compatible with general ISDN BRI.
Therefore, in this case, the mobile phone 1 only needs to have a TA control function. That is, for example, adapter 2
If the audio processing unit is compatible with the Hayes AT, a function for controlling the connection operation of the adapter 2 and controlling transmission and reception of audio data between the audio processing unit 112 and the adapter are provided according to the Hayes AT connection procedure. Just do it. This Haye
s The AT connection procedure is processed on the adapter 2 side, and the ISDN-B channel control unit is substituted for the main control unit 105 in the present embodiment.
Controlling 111 and the ISDN layer 3 control unit 108
This is the main control unit 51 in FIG.

Further, in the above description, the use mode in which the portable telephone 1 is connected to the data port of the public telephone 3 via the adapter 2 has been described, but the present portable telephone 1 provides an S / T point via the adapter 2. It can be connected to an arbitrary device such as a DSU or a TA, and can communicate similarly.

In the above, a case has been described in which a call is made from the portable telephone 1 using the data port of the public telephone 3. However, this is not the case with the analog port of the public telephone 3 or the IrDA provided in some public telephones. The communication may be modified so that a call can be made from the mobile phone 1 using an infrared communication port such as the above. However, it is a condition that the public telephone is configured such that a service for voice communication such as a voice transmission capability can be used via these ports.

In any case, a function of performing communication using an interface compatible with the interface of the port of the public telephone 3 to be used is provided on the mobile telephone 1 and the adapter 2 in an arbitrary arrangement. In the present embodiment, like the switching between the wireless communication control unit 107 and the ISDN-B channel control unit 111, the ISDN layer 3 control unit 108, and the ISDN layer 1/2 control unit 12, switching is used. What should I do?

[0051]

As described above, according to the present invention, it is possible to use a portable telephone to make a call using the public telephone without using a handset of the public telephone.
For example, a user can perform communication using a public telephone using a telephone number registered in a mobile telephone.

[Brief description of the drawings]

FIG. 1 shows a mobile phone to which an embodiment of the present invention is applied.
It is a figure which shows the use form of a public telephone.

FIG. 2 is a block diagram showing a configuration of a mobile phone to which an embodiment of the present invention is applied.

FIG. 3 is a block diagram showing a configuration of an adapter to which an embodiment of the present invention is applied.

FIG. 4 is a diagram showing an example of a signal arrangement of the connector shown in FIGS.

FIG. 5 is a diagram showing a calling procedure of a mobile phone to which an embodiment of the present invention is applied.

FIG. 6 is a block diagram showing another configuration of the mobile phone and the adapter to which one embodiment of the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mobile telephone 2 ... Adapter 3 ... Public telephone 4 ... ISDN 5 ... Communication destination telephone 11 ... Modular plug 12 ... ISDN layer 1.2 control part 13, 109 ... Serial transmission control part 14, 110 ... Connector 101 ... Key group 102 ... Display 103 ... Memory 104 ... Man-machine interface control unit 105 ... Main control unit 106 ... Connector monitoring unit 107 ... Wireless communication control unit 108 ... ISDN layer 3 control unit 111 ... ISDN-B channel control unit 112 ... Sound processing unit 113 … Microphone 114… Speaker

Claims (11)

[Claims] An audio processing unit for processing voice communication, a first communication processing unit for providing a communication function using a mobile radio communication network, and a communication function for using a wired public telephone network are provided. A second communication processing unit; and a communication function provided by the first communication processing unit and a communication function provided by the second communication processing unit as communication functions used for communication of voice processed by the voice processing unit. And a control unit for selectively switching. 2. The mobile radio telephone according to claim 1, further comprising an adapter device configured to be attachable to a telephone main body and connecting the second communication processing unit to an interface communicating with the public telephone network. The mobile radio telephone, wherein the second communication processing unit is disposed in the adapter device or is distributed and disposed in the adapter device and the telephone main body. 3. A voice processing unit for processing voice communication, a first communication processing unit for providing a communication function using a mobile radio communication network, and a communication function using ISDN (Integrated Services of Digital Network). A communication function provided by the first communication processing unit and a communication function provided by the second communication processing unit as communication functions used for communication of voice processed by the voice processing unit; A mobile radio telephone, comprising: a control unit that selectively switches functions. 4. The mobile radio telephone according to claim 3, further comprising: an adapter device configured to be attachable to a telephone main body and connecting the second communication processing unit to an interface that communicates with the ISDN. The mobile radio telephone, wherein the second communication processing unit is disposed in the adapter device, or is distributed and disposed in the adapter device and the telephone main body. 5. A voice processing unit for processing voice communication, a first communication processing unit for providing a communication function using a mobile radio communication network, and an interface provided by a public telephone for an external device. A second communication processing unit providing a communication function using a public network; and a communication function provided by the first communication processing unit as a communication function used for communication of voice processed by the voice processing unit. And a control unit for selectively switching communication functions provided by the second communication processing unit. 6. The mobile radio telephone according to claim 5, wherein the adapter is configured to be attachable to a telephone main body and connects the second communication processing unit to an interface provided by the public telephone for an external telephone. A mobile radio telephone having a device, wherein the second communication processing unit is disposed in the adapter device, or is distributed and disposed in the adapter device and the telephone main body. 7. The mobile radiotelephone according to claim 2, further comprising a detection unit for detecting attachment of the adapter device to the telephone body, wherein the switching control unit includes the detection unit. Selecting a communication function provided by the second communication processing unit as a communication function used for communication of voice processed by the voice processing unit only when detecting the attachment of the adapter device. Wireless telephone. 8. The mobile radio telephone according to claim 1, 2, 3, 4, 5, 6, or 7, wherein the switching control unit comprises: a communication function provided by the first communication processing unit; 2. The mobile radio telephone according to claim 2, wherein the switching is performed by using the communication function provided by the second communication processing unit to put the communication being executed on hold. 9. The mobile radio telephone according to claim 1, wherein said input unit accepts a user operation and a telephone number book for registering a telephone number. A storage unit for storing, voice communication by the voice processing unit using a communication function provided by the first communication processing unit, and a voice processing unit using a communication function provided by the second communication processing unit At the start of communication, in both of the voice communication by the user and the telephone number registered in the telephone number book stored in the storage unit in response to a user operation accepted by the input unit, the destination telephone A mobile radio telephone, comprising: a transmission processing unit for transmitting a number. 10. An interface for connecting to a mobile radio telephone having a radio communication processing unit for providing a communication function using a mobile radio communication network, and according to control from the mobile radio telephone via the interface. A public telephone network processing unit that enables communication using a wired public telephone network of a mobile radio telephone,
An adapter device comprising: 11. An interface for connecting to a mobile radio telephone having a radio communication processing unit for providing a communication function using a mobile radio communication network, and according to control from the mobile radio telephone via the interface, ISDN (Integr
and an ISDN processing unit that enables communication using an ated services of digital network.