JP2000295660A - Communication system and communication unit used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system where an incoming call to a mobile terminal typified by a PHS (R) terminal or a mobile phone can economically be transferred using a cordless phone. SOLUTION: The system is configured such that a cordless telephone system, which is provided with terminals for transmission/reception of a voice signal and a control signal to/from an external unit and is available of signal connection with a mobile terminal 5 capable of external signal connection with an external unit through a changer 6, transfers an incoming call arrived in the mobile terminal 5 to a cordless phone slave set via a cordless phone master set, whose master set or slave set can receive the incoming call, and whose master set or slave set can make a call to a 3rd party's mobile terminal via a mobile unit connected to the system. The cordless terminal located in another room can receive an incoming call received by the mobile terminal 5, and in the case that making a call by the mobile terminal 5 provides a cheaper speech charge, the local cordless phone is used to make a call through the mobile terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication system and a communication device used in the system, in particular, a call received to a mobile terminal (mobile communication terminal) represented by a cellular or PHS, and a public network (public communication). The present invention relates to a technology that is effective when applied to a transfer system that transfers data using a general telephone such as a cordless telephone using a network.

[0002]

2. Description of the Related Art When a mobile terminal is not carried, it is impossible to make a call without noticing the incoming call. Assuming such a case, a transfer service to another telephone is used.
That is, when the transfer is set, the call is transferred to a preset telephone number when there is an incoming call.
The transfer service is disclosed, for example, in Japanese Patent Application Laid-Open No. 8-149562. According to this document, in a mobile terminal and a cordless telephone base unit using the mobile terminal as a slave unit, it is determined whether or not the mobile terminal is within the radio wave range of the cordless telephone base unit, and the mobile terminal is within the range. In some cases, a technique is disclosed in which a call addressed to a mobile terminal is transferred to a cordless telephone base unit. Further, this document describes a transfer service in which a communication user uses one communication terminal as a call transfer source and another communication terminal as a transfer destination as a conventional technique.
Further, as another service means, there is a method of using the answering machine message service to notify the other party of the number to be called back when the mobile terminal cannot receive the incoming call.

[0003]

A mobile terminal is a convenient device that can be directly contacted for an individual at any time, but for that purpose, each individual always carries the mobile terminal or keeps it nearby. There is a need. However, it is good to always be in a specific room when relaxing at home or the like, but when it is necessary to move in a plurality of rooms, it is troublesome to carry a mobile terminal every time the user moves. If the call received by the mobile terminal is connected to another telephone, for example, a subscriber line at home, and the slave unit can transfer the call to a cordless telephone (general telephone) arranged in each room, the mobile terminal in another room can be transferred. It is not necessary to move to the room where the mobile terminal is located even if the call is not noticed or noticed.

FIG. 10 is a schematic diagram showing a transfer path by a transfer service or an answering machine message service. When the third party mobile terminal 8 calls the mobile terminal 5 via the route (A) via the base station 7 and the mobile terminal 5 fails to respond, if the transfer service is set, the public network 9 is established. The data is transferred to the parent device (cordless telephone parent device) 4 at home via the route (B). Further, base unit 4 calls a plurality of handset units (cordless handset units) 1 (for example, three handset units 1 including handset unit A, handset unit B, and handset unit C), and informs that there is an incoming call. The incoming call can be received by the handset 4 or any of the handset 1. Also, when the answering machine message service is set, the mobile terminal 5 or the base station 7 notifies the third party mobile terminal 8 of the subscriber telephone number to which the base unit 4 is connected, so that the third party can access the base station. The call can be redialed using the route (C) via the station 7 and the public network 9. However, in the transfer service, the call charge from the third party to the mobile terminal is charged to the third party, but the call charge to the transfer destination needs to be paid by the user, and the call from the other party must be received. Nevertheless, there was a problem that call charges were incurred. Further, if the transfer service is left set, there is a problem that the user is not at home and is transferred to his / her home. In the answering machine message service, there is a problem that extra work is required for the other party to make the other party make a call again, and the usability is deteriorated. Also, like the transfer service, there is a possibility that the user may be called back to his absence. On the other hand, when a call is made to a third party by a third party, when the call is transmitted by a mobile terminal, if the call is made through a general subscriber telephone and the call is made, the call charge is higher than when the call is made from the mobile terminal and the call is made. There is.

The present invention has been made in view of such a background, and an object of the present invention is to make an incoming call received by a mobile terminal easy for a general telephone (subscriber telephone) using a public network. It is an object of the present invention to provide a wireless communication system capable of transferring data in a fast and economic manner. It is another object of the present invention to provide a wireless communication system in which a subscriber telephone terminal can make a call to a third party via a mobile terminal. The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0006]

The following is a brief description of an outline of typical inventions disclosed in the present application. (1) It has a general telephone for transmitting and receiving via a public network, and a mobile terminal for transmitting and receiving via a mobile network, wherein each of the general telephones includes a base unit composed of a cordless telephone and one or more slave units. While being configured, the base unit and the mobile terminal charger to which the mobile terminal is attached are connected by connection means capable of transmitting and receiving a voice signal and a control signal, and in a state where the mobile terminal is placed on the mobile terminal charger. When an incoming call occurs to the mobile terminal, the master unit receives the call via the connection means, calls all the slave units, and enables communication by the master unit or the slave unit. When an incoming call occurs at a mobile terminal placed in the mobile terminal charger, the master unit receives and calls all the slave units, and when one of the slave units goes off-hook, the control signal indicates that the user has gone off-hook. By transmitting to the mobile terminal, the audio signal is connected to the off-hook slave unit, and also detects that the slave unit is on-hook, or receives from the mobile terminal a control signal indicating that the other party is on-hook Then, the audio signal is cut off. The mobile terminal has storage / setting means for storing and setting a call transfer control personal identification number which can be freely set, and stores the personal identification number stored in the storage / setting part and / or a terminal-specific calling number. The main unit is configured to receive a call when a call is received. The master unit receives a password output by the mobile terminal when connecting to the call received and transferred by the mobile terminal, and when the mobile terminal is off-hook, the password input by the key input means and the password are transmitted. It is configured to go off-hook only when a match occurs and connect the audio signal. The cordless telephone is configured to be able to make a call via a mobile terminal connected to the base unit by a specific key operation. The base unit receives a terminal-specific call number output by the mobile terminal when the mobile terminal transfers a call received by the mobile terminal and calls each slave unit, and registers the call number in advance corresponding to the call number. It is designed to sound a ringing tone and the like. In such a system, the following communication devices are used. In a mobile terminal with a mobile terminal charger, the mobile terminal is provided with an audio signal processing unit, a control signal processing unit, and a contact unit electrically connected to a ground potential unit. The mobile terminal charger is provided with a connector that has a contact portion that can contact the contact portion and is electrically connected to the contact portion of the mobile terminal charger. In the cordless telephone base unit, the base unit includes a signal line electrically connected to an audio signal processing unit, a control signal processing unit, and a ground potential unit for transmitting and receiving a voice signal and a control signal, and a power supply line for matching a ground potential. The configuration is such that a connector for connection is provided. In the slave unit with the charger for the slave unit, the slave unit is provided with an audio signal processing unit, a control signal processing unit, and a contact unit electrically connected to a ground potential unit. It is configured to have a contact portion capable of contacting the contact portion of the slave unit and a connector electrically connected to the contact portion of the charger for the slave unit. . A main unit consisting of a cordless telephone transmitted and received via the public network and 1
A mobile phone configured to transmit and receive data via a mobile network, wherein the base unit and / or the charger for the slave unit and the mobile terminal charger include an audio signal or A connection cable used in a communication system connected by connection means capable of transmitting and receiving a control signal, wherein the connection cable has an audio signal line, a control signal line, and a power supply line, and the mobile terminal charger is provided at both ends. , A connector that can be connected to any of the parent device and the child device charger. (2) It has a general telephone for transmitting and receiving via a public network, and a mobile terminal for transmitting and receiving via a mobile network, wherein each of the general telephones comprises a base unit composed of a cordless telephone and one or more slave units. The mobile terminal charger where the mobile terminal is placed and the child device charger where the child device is placed are configured to transmit and receive voice signals and control signals. When an incoming call occurs to the mobile terminal in a state where the mobile terminal is placed on the mobile terminal charger, a child placed on the mobile device charger via the connection unit is connected. The device receives and transmits it to the master device, and the master device calls another slave device to enable communication by the master device or the slave device. When an incoming call occurs to a mobile terminal placed in the mobile terminal charger, the slave attached to the slave charger is received via the connection means and transmitted to the master,
The master unit calls another slave unit, and when one of the master unit or the slave unit goes off-hook, informs the mobile terminal of the off-hook by a control signal, and connects the audio signal of the mobile terminal to the master unit or the slave unit that went off-hook. The voice signal is cut off when the connected slave unit is detected to be on-hook or when a control signal indicating that the other party is on-hook is received from the mobile terminal. (3) A configuration having both of the means (1) and the means (2), wherein transmission and reception of a voice signal and a control signal are performed between the master unit and the mobile terminal charger and between the slave unit charger and the mobile terminal charger. Are connected by connecting means capable of performing the above operations. (4) In any one of the means (1) to (3), the connection means is constituted by a direct wireless line. The mobile terminal, the master unit, and the slave unit are provided with a direct wireless line for transmitting and receiving the voice signal and the control signal.

According to the above-mentioned means (1), (a) when a call is received by a mobile terminal placed in the mobile terminal charger, it is determined that the call has been received by a connection cable connected to the mobile terminal charger. The master unit calls the slave unit connected by a wireless line to enable communication by the master unit or the slave unit. (B) When the master unit or one of the called slave units goes off-hook, the off-hook is transmitted to the mobile terminal as an off-hook signal by a control signal, and the mobile terminal starts talking by receiving the off-hook signal. Via an audio signal connected to the mobile terminal charger,
Connected to the parent device or the child device. (C) Since the mobile terminal has storage / setting means for storing and setting a call transfer control password which can be freely set, it is possible to set / transmit (transfer) the password.
When the incoming call information is transferred to the cordless telephone, the password is also transferred, and before receiving the incoming call transferred by the master unit or the handset, the password is input and the password matches the transferred password. Only calls are allowed, so there is no inadvertent incoming call. (D) The cordless telephone is capable of making a call to a third-party mobile terminal via a mobile terminal connected to the base unit by a specific key operation.
Mobile terminals communicate with each other on a bill basis, and call charges can be reduced. (E) Since a terminal-specific number such as a calling number is transferred from a mobile terminal, a cordless telephone sounds a ringing tone corresponding to a number registered in advance, and a plurality of mobile terminals can be connected to one cordless telephone. Even when connected, it is possible to know to which mobile terminal an incoming call is made. Therefore, it is possible to know from which mobile terminal the call transferred to each cordless telephone was transferred, and to prevent the call from being taken carelessly by another person. (F) According to the above (a) to (e), for example, when at home, an incoming call received by a mobile terminal placed in the mobile terminal charger cannot be taken out due to being in another room. By transferring the call to the child device or the like installed in each room without adding a call charge, it is possible to reliably respond to the incoming call. According to the means (2), a cordless telephone can be used between the mobile terminal placed on the mobile terminal charger and the child device placed on the child device charger as in the case of the means (1). Call (communication) becomes possible. According to the means of (3), since the mobile terminal charger and the charger for the master unit and the slave unit are connected by the connection cable, the same as in the case of the means (1) and the means (2). Communication by cordless telephone becomes possible. According to the above-mentioned means (4), the communication called to the mobile terminal placed in the mobile-terminal charger by the direct wireless line can be performed by the same cordless telephone as in the above-mentioned means (1) to (3). Communication becomes possible.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. In all the drawings for describing the embodiments of the present invention, components having the same functions are denoted by the same reference numerals, and their repeated description will be omitted.

(Embodiment 1) FIGS. 1 to 5 show a communication system according to an embodiment (Embodiment 1) of the present invention and communication equipment (mobile terminal, mobile terminal charger, cordless telephone base unit) used in the communication system. , Cordless telephone handset, charger for handset,
FIG. In the first embodiment, a description will be given of a transfer system and the like when an incoming call occurs to a mobile terminal.

FIG. 1 is a schematic diagram showing a transfer route of a call transfer system to a mobile terminal. The mobile terminal 5 and the third party mobile terminal 8 communicate with each other using a mobile network via the base station 7. A general telephone (subscribed telephone) can communicate with other general telephones via a public network (not shown), and the public network is connected to a mobile network via a base station 7 to enable communication with mobile terminals. The general telephone includes, for example, a base unit 4 and one or more slave units 1 each of which is a cordless telephone. Therefore, the parent device 4 and the child device 1
In addition to the communication with the mobile phone, extension calls including a call between the handset units 1 (calls between handset units) can be made via the base unit 4.
In the first embodiment, the slaves 1 are the slaves A, B, C and 3
Although the table is configured to be able to wirelessly communicate with the base unit 4, the present invention is not limited to this. If the number of the slaves 1 is large, the slaves 1 can be installed in each room or the like, so that the probability of missing the incoming call of the mobile terminal is reduced. On the other hand, this is one of the features of the present invention, in which the mobile terminal 5 can transmit and receive voice signals and control signals to and from the base unit 4 while being placed in the mobile terminal charger (charger) 6. When the mobile terminal 5 placed in the mobile terminal charger 6 receives a call, the mobile terminal 5 and each of the child devices 1 are automatically placed in a state where they can talk. That is, as shown in FIG. 1, when a call is received from a third party mobile terminal 8 to a mobile terminal (mobile communication terminal) 5 placed in a mobile terminal charger 6 via the base station 7, for example, Mobile terminal 5
The mobile terminal 5 is connected to the mobile terminal charger 6, the mobile terminal charger 6, and the base unit 4 if the owner of the mobile terminal does not notice the incoming call even if the owner makes a ringing sound a predetermined number of times, for example, in another room.
Is notified to the base unit 4 via the connection cable 2 connecting the mobile terminal 5 to the mobile terminal 5. In response to the incoming call signal, the master unit 4 is connected to a plurality of slave units 1 connected via a wireless line.
(Slave units A to C) are called. The owner of the mobile terminal 5 can receive an incoming call to the mobile terminal 5 via the parent device 4 by off-hooking the nearest child device 1.

Next, a communication device used in the communication system of the first embodiment will be described. FIG. 2 is a block diagram showing a system configuration in a state where the mobile terminal 5, mobile terminal charger 6, master unit 4, and connection cable 2 are separated, and FIG. 6 is a block diagram showing a system configuration in a state where the mobile terminal 6 is connected and the mobile terminal 5 is placed on the mobile terminal charger 6. FIG. 4 is a block diagram showing a system configuration of the child device 1 connected to the parent device 4 by a wireless line. FIG. 5 is a diagram showing a connection state between the parent device 4 and the mobile terminal charger 6 by the connection cable 2 and a mobile terminal charger. FIG. 6 is a partial schematic perspective view showing a mounting portion of a mobile terminal 5 of FIG. As shown in FIG. 2, the mobile terminal 5 is connected to the control unit 13, a wireless unit 12 connected to the control unit 13, an antenna 11 connected to the wireless unit 12, and connected to the control unit 13 Voice processing unit 1
4, a display control unit 16 and a key operation unit 17 connected to the control unit 13, a memory number storage unit 18, and a power supply control unit 15. Further, a contact portion A20 is provided on the bottom of the mobile terminal 5. A power terminal 20F, a ground terminal 20E, an audio signal terminal 2
0G and a control signal terminal 20H are provided. The power terminal 20F is connected to a power control unit 15. The audio signal terminal 20G is connected to the audio processing unit 14 serving as an audio signal processing unit, and the control signal terminal 20H is connected to the interface unit 19.
Is connected to a control unit 13 serving as a control signal processing unit. The mobile terminal charger 6 has a charging circuit 23 and a contact portion B2 at a portion where the mobile terminal 5 is placed.
1 is provided. The contact portion B21 is connected to the power terminal 21.
F, a ground terminal 21E, an audio signal terminal 21G, and a control signal terminal 21H.
When the mobile terminal 5 is placed on the mobile terminal charger 6, the terminals of the same function 20 are electrically contacted. A connector 24B is provided on one side of the mobile terminal charger 6. The connector terminals of this connector 24B are:
Although not shown, it is composed of, for example, three, one is connected to the ground signal terminal, the other is connected to the control signal terminal 21H, and the other is connected to the audio signal terminal 21G.
The number of contacts of the contact portion A20 and the contact portion B21 is not limited to this. Generally, more signals are provided as necessary, such as dividing each signal into incoming and outgoing signals. The same applies to 24A, 24B, 25A, and 25B described later. As shown in FIG. 5, the bottom of the mobile terminal 5 is inserted into the mounting hole 27 also provided with the upper surface of the mobile terminal charger 6, so that the contact portion A20 is provided on the bottom surface of the mobile terminal 5, B21 is provided on the bottom surface of the mounting hole 27. In FIG. 5, reference numerals of the contact portion B21 are omitted. The connector 24B of the connection cable 2 is connected to the connector 24B. The connection cable 2 includes, for example, a signal line (control signal line 2A) for transmitting a control signal, a signal line (audio signal line 2B) for transmitting an audio signal, and a GND (ground) line 2C as shown in FIG. The two connectors 24A, 25A at both ends are three terminals corresponding to these.

The base unit 4 has the appearance shown in the perspective view of FIG. 5, and its system configuration is, as shown in FIG. 2, connected to a telephone control unit 33 and the telephone control unit 33. Wireless unit 32, an antenna 31 connected to the wireless unit 32, a line interface unit 37 connected to the telephone control unit 33, a key operation unit 35 connected to the telephone control unit 33, and display control Unit 36, the telephone control unit 33, the key operation unit 35, and the display control unit 36
Has a telephone number registration unit 38 connected to the. Also,
The line interface unit 37 is connected to a public line (public network) and to a handset 39. A connector 25B to which a connector 25A at one end of the connection cable 2 is connected is provided on one side surface of the base unit 4.
The connector 25B includes a ground terminal, a control signal terminal, and an audio signal terminal (not shown) because the connection cable 2 is connected thereto. The slave 1 is connected to the control unit 43, a wireless unit 42 connected to the control unit 43, an antenna 41 connected to the wireless unit 42, and the control unit 43, as shown in FIG. Voice processing unit 44
And a display control unit 46, a key operation unit 47, a telephone number registration unit 48, and a power supply control unit 45 connected to the control unit 43.

As shown in FIG. 3, the connector 24A at one end of the connection cable 2 is connected to the connector 24B of the mobile terminal charger 6.
And the connector 25A at the other end of the connection cable 2 is connected to the connector 25B of the base unit 4,
Is placed on the mobile terminal charger 6, between the control unit 13 of the mobile terminal 5 and the telephone control unit 33 of the base unit 4, the contact part A20 of the mobile terminal 5 and the contact part B21 of the mobile terminal charger 6
, And a control signal can be transmitted through a signal line passing through the connection cable 2 connecting the mobile terminal charger 6 and the base unit 4, and the voice processing unit 14 of the mobile terminal 5 and the telephone control unit of the base unit 4 Reference numeral 33 enables transmission of an audio signal as in the case of the control signal. Similarly, the ground potentials of the mobile terminal 5, the master unit 4, and the mobile terminal charger 6 are the same. Since the first embodiment is an analog system, the mobile terminal 5
In, the control signal processing unit becomes the control unit 13 and the audio signal processing unit becomes the audio processing unit 14. In such a configuration, the mobile terminal 5 demodulates the signal received by the antenna 11 by the radio unit 12, and performs error processing, analysis of the control signal, separation of the audio signal, and the like by the control unit 13. The separated audio signal is converted to analog audio by the audio processing unit 14. The transmitting side performs the reverse operation. When the mobile terminal 5 receives a call,
If it is placed on the mobile terminal charger 6, the display control unit 16 including a buzzer display informs the owner of the incoming call, and the control unit 13 transmits a control signal to the interface unit 1.
9. Inform the telephone control unit 33 of the base unit 4 of the incoming call via the mobile terminal charger 6, the connection cable 2, and the interface unit 34 of the base unit 4. The base unit 4 detects an incoming call from the outside by receiving the control signal at the interface unit 34,
The incoming call is transmitted to the plurality of slave units 1 by a telephone control unit 33 via a wireless unit 32 and an antenna 31 via a wireless line. The slave 1 confirms the incoming call at the control unit 43 via the antenna 41 and the wireless unit 42, and notifies the incoming call at the display control unit 46 including a buzzer display. When the owner receives the incoming call and operates the slave unit 1, that is, the off-hook operation is performed by the key operation unit 4.
When a key is operated from 7, the off-hook is notified to the base unit 4 and the mobile terminal 5 through a route reverse to that of the incoming call. When receiving the control signal indicating off-hook, the mobile terminal 5 starts talking with a third party, and transmits the voice signal processed by the voice processing unit 14 to the base unit 4 via the mobile terminal charger 6 and the connection cable 2. Is connected to the line interface unit 37. The line interface unit 37 is normally connected to a public line (public network), but is connected to a voice signal from the mobile terminal 5 when an incoming call from a control signal goes off-hook. The connected audio signal is transmitted to the plurality of slave units 1 like the control signal, and is connected to a handset (not shown) via the audio processing unit 44 of the slave unit 1 to enable a telephone call. On the other hand, mobile terminal 5
Is provided with a password storage means 18 for call transfer control which can be freely set by the owner. The secret number storage means 18 transmits the personal identification number stored in the secret number storage means 18 or a terminal-specific call when the incoming call to the mobile terminal 5 is transmitted to the base unit 4 connected to the outside by the control signal. When transmitting the number or both, the base unit 4 that has received the incoming call signal calls the slave unit 1 connected via the wireless line, and simultaneously transfers the password to the slave unit 1. Therefore, the handset 1
When receiving a call, the display control unit 46 notifies the call by a display including a display means for sounding a buzzer. At this time, when the handset 1 has the telephone number registration unit 48 and receives the number unique to the mobile terminal from the base unit 4 and the number matches the number registered in the telephone number registration unit 48 in advance. ,
Ring or display a ringing tone corresponding to the number. When off-hook is performed by the called handset 1, a password is entered to confirm that the user is the mobile terminal owner before the off-hook operation. Only when the personal identification number transferred from the base unit 4 matches the input personal identification number, it is possible to go off-hook. Although only a single mobile terminal 5 can be placed in the mobile terminal charger 6 in the drawing, a structure in which a plurality of mobile terminals are provided enables transfer by a plurality of mobile terminals. In this case, as described above, base unit 4 can confirm the number unique to the mobile terminal, and ring or display a ringing tone corresponding to the number.

According to the first embodiment, the following effects are obtained. (1) When a call is received by the mobile terminal 5 placed on the mobile terminal charger 6, the fact that the call has been received is transmitted to the base unit 4 via the connection cable 2 connected to the mobile terminal charger 6, and The device 4 calls the child device 1 connected by the wireless line, and the communication with the parent device 4 or the child device 1 becomes possible. (2) When the base unit 4 or one of the called sub units 1 goes off-hook, the off-hook is transmitted to the mobile terminal 5 as an off-hook signal by a control signal, and the mobile terminal 5
Starts a telephone call upon receipt of an off-hook signal, and at this time, a voice signal is connected to the base unit 4 or the slave unit 1 via a voice signal connected to the mobile terminal charger 6. (3) Since the mobile terminal 5 has storage / setting means for storing and setting a call transfer control password that can be set freely, the password can be set and transmitted (transferred). When the call information is transferred to the cordless telephone, the password is also transferred, and before receiving the call transferred by the base unit 4 or the handset 1, the password is input and matched with the transferred password. Since calls are permitted only when the call is made, unnecessary incoming calls can be ignored. (4) Since the cordless telephone can make a call to the third party mobile terminal 8 via the mobile terminal 5 connected to the base unit 4 by a specific key operation, even if a call is made with the cordless telephone, Mobile terminals communicate with each other on a bill basis, and call charges can be reduced. (5) Since a terminal-specific number such as a calling number is transferred from the mobile terminal 5, the cordless telephone sounds a ringing tone corresponding to the number registered in advance,
Even if a plurality of mobile terminals are connected to one cordless telephone, it is possible to know which mobile terminal is to receive a call. Therefore, it is possible to know from which mobile terminal the call transferred to each cordless telephone was transferred, and to prevent the call from being taken carelessly by another person. (6) According to the above (1) to (5), for example, when at home, an incoming call received by the mobile terminal 5 placed on the mobile terminal charger 6 cannot be taken out because the user is in another room. However, it is possible to reliably respond to the incoming call by transferring the call to the child device or the like installed in each room without adding a call charge. (7) The effects (1) to (6) can be obtained by using communication devices such as the master unit 4, the mobile terminal 5, the mobile terminal charger 6, the slave unit 1, and the connection cable 2.

(Embodiment 2) FIG. 6 is a schematic diagram showing a transfer path of a call transfer system to a mobile terminal in a communication system according to another embodiment (Embodiment 2) of the present invention, and FIG. FIG. 2 is a block diagram showing a system configuration of a device charger. In the second embodiment, as shown in FIG. 6, the mobile terminal charger 6 on which the mobile terminal 5 is placed and the one charger 22 for one child device on which the child device 1 is placed are connected by the connection cable 2. ing. The child device charger 22 is provided with a connector 25B to which the connector 25A of the connection cable 2 of the first embodiment is connected and a contact portion A61 at a portion where the bottom portion of the child device 1 is placed. (Figure 7
reference). The slave unit 1 has a configuration in which an interface unit 50 connected to the control unit 43 is added to the slave unit 1 of the configuration of the first embodiment, and when the slave unit 1 is placed on the slave unit charger 22, the charge of the slave unit 1 And a contact portion A60 for making electrical contact with the contact portion A61 of the container 22. That is, the contact portion A60 is provided on the bottom of the slave device 1 similarly to the mobile terminal charger 6, and the contact portion A61 corresponding to the contact portion A60 is provided on the slave charger 22. ing.
The contact portion A60 is the same as the contact portion A20 of the mobile terminal 5 (power terminal, ground terminal, control signal terminal, audio signal terminal), and the contact portion A61 is the same as the mobile terminal charger 6 contact portion B21 ( Power supply terminal, ground terminal,
(Control signal terminal, audio signal terminal), detailed description thereof will be omitted. Accordingly, the control signal terminal of the contact section A60 is connected to the interface section 50 connected to the control section 43 of the slave 1, and the audio signal terminal is connected to the audio processing section 44 which is an audio signal processing section. ing.
Since one charger 22 for the child device and the mobile terminal charger 6 are connected by the connection cable 2, the charger 2 for the child device
When the mobile terminal 5 is placed on the mobile terminal charger 2 and the mobile terminal 5 is placed on the mobile terminal charger 6, the mobile terminal 5 is placed on the mobile device charger 22. The control signal indicates that there is an incoming call. The handset 1 transmits a signal indicating the incoming call to the base unit 4 by the extension call function, and the base unit 4 notifies that a call has been received by a buzzer or a display. Further, when the base unit 4 can use two or more channels of wireless lines at the same time and supports a call between child units, the incoming call is transmitted to the other child units 1. When the child device 1 or the parent device 4 performs an off-hook operation, the audio signal of the mobile terminal 5 is connected to the child device 1 or the parent device 4 that has gone off-hook via the audio signal of the child device 1.
When a call is made from the handset 1 to a third party, if a call operation is performed by the key operation unit 47 by a specific key operation indicating a call via the mobile terminal, the call signal and dial data are: The information is transmitted to the base unit 4 via a wireless line, and transmitted to the mobile terminal 5 from the interface unit 34 via a control signal. When the mobile terminal 5 detects the call based on the control signal and obtains the dial data, the mobile terminal 5 starts calling the third party, and connects the voice signal to the called handset 1 via the base unit 4. If the third party receives the call and goes off-hook, a call via the mobile terminal 5 from the calling handset 1 is started. In the second embodiment as well, similar to the case of the first embodiment, a call received by the mobile terminal 5 can be communicated with the master unit 4 or each slave unit 1.

(Embodiment 3) FIG. 8 is a block diagram showing a system configuration of a master unit and a mobile terminal having a call transfer function via a direct wireless line in a communication system according to another embodiment (Embodiment 3) of the present invention. It is. As shown in FIG. 8, in the third embodiment, the mobile terminal 70 and the master unit 71 are each provided with a weak wireless unit 72, 73 as a direct wireless line. Mobile terminal 70 and master unit 71
Is substantially the same as the mobile terminal 5 and the master unit 4 of the first embodiment, but has a structure without a signal line system for transmitting and receiving a voice signal and a control signal and an interface unit. When the mobile terminal 70 receives an incoming call from a third party and the owner does not respond to the predetermined number of ringing tones, the control signal 3A indicating that there is an incoming call is transmitted via the weak radio units 72 and 73 to the mobile terminal 70. The information is transmitted to the parent device 71 and further transmitted to the child device (not shown).
When the master unit 71 or one of the slave units responds and goes off-hook,
The base unit 71 notifies the weak radio unit 7 that the user has gone off-hook.
The information is transmitted to the mobile terminal 70 via 3, 72. Based on this information, the mobile terminal 70 starts a call with a third party,
The audio signal 3B processed by the audio processing unit is connected to the off-hook master unit 71 or the slave unit, so that a telephone call with a third party is possible. In the third embodiment as well, in the same manner as in the first embodiment, a call received by the mobile terminal 5 can be communicated with the master unit 4 or each slave unit 1.

(Embodiment 4) FIG. 9 is a block diagram showing a system configuration of a master unit, a mobile terminal, and a charger in a digital communication system according to another embodiment (Embodiment 4) of the present invention. In the fourth embodiment, since the digital cable is used, the connection cable 2 can transmit the control signal and the audio signal through one control / audio signal line 2D. It is configured. Therefore, the connectors 24A, 2A of this connection cable 2
The connector 24B of the mobile terminal charger 6 and the connector 25B of the master unit 4 connected to 5A respectively have a structure corresponding thereto. The control / audio signal transmitted by the control / audio signal line 2D is transmitted to the interface unit 19,
The control signal is transmitted to the control unit 13 and the telephone control unit 33 which are both a control signal processing unit and an audio signal processing unit via the control unit 34. Also in the fourth embodiment, as in the case of the first embodiment, a call received by the mobile terminal 5 can be communicated with the master unit 4 or each slave unit 1.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the invention. Needless to say. In the above description, the case where the invention made by the present inventor is mainly applied to a communication method using a public network and a mobile network, which are the fields of use, has been described. However, the present invention is not limited thereto. The present invention can be applied to a communication system including a closed communication network and an intra-company / region communication network. The present invention is applicable to at least a wireless communication system including a mobile communication system.

[0019]

The effects obtained by the representative ones of the inventions disclosed in the present application will be briefly described as follows. (1) In the present transfer system, when a mobile terminal is placed in a mobile terminal charger, a control signal and a voice signal of the mobile terminal are transmitted via the mobile terminal charger to a base unit of the cordless telephone system.
Or because it is connected to the child device via the mobile terminal charger and the child device charger, for example, when you receive a call to the mobile terminal, such as when you are relaxing at home, did not notice the incoming call Also, the above system allows the incoming call to be transferred to each cordless handset or base unit so that the nearest terminal can know and receive the incoming call of the mobile terminal. (2) In addition, by confirming with a personal identification number at the time of an incoming call, there is no careless reception of an incoming call by another person. (3) Even if a plurality of mobile terminals are connected, by transmitting terminal-specific information, ringtones can be sounded separately, and it can be determined to whom the incoming call is based on the sound. (4) Further, from the cordless telephone handset or base unit,
Calls can also be made via mobile terminals.For example, when calling from a mobile terminal is cheaper, do not bother to go to the location of the mobile terminal and make a call from the nearest cordless terminal via the mobile terminal. Can be done.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a transfer path of a call transfer system to a mobile terminal in a communication system according to an embodiment (Embodiment 1) of the present invention.

FIG. 2 is a block diagram showing a system configuration of a cordless telephone base unit having a call transfer function, a mobile terminal, and a charger in the communication system of the first embodiment.

FIG. 3 is a block diagram showing a state in which the cordless telephone base unit and the mobile terminal charger of the first embodiment are connected by a connection cable and the mobile terminal is placed on the mobile terminal charger;

FIG. 4 is a block diagram illustrating a system configuration of a cordless telephone handset in the communication system according to the first embodiment.

FIG. 5 is a perspective view showing a part of a cordless telephone base unit, a mobile terminal charger, and a mobile terminal in the communication system of the first embodiment.

FIG. 6 is a schematic diagram illustrating a transfer route of a call transfer system to a mobile terminal in a communication system according to another embodiment (Embodiment 2) of the present invention.

FIG. 7 is a block diagram showing a system configuration of a cordless telephone handset and a handset charger in the communication system according to the second embodiment.

FIG. 8 is a block diagram showing a system configuration of a cordless telephone base station and a mobile terminal having a call transfer function by a direct wireless line in a communication system according to another embodiment (Embodiment 3) of the present invention.

FIG. 9 is a block diagram showing a system configuration of a cordless telephone base unit, a mobile terminal, and a charger in a digital communication system according to another embodiment (Embodiment 4) of the present invention.

FIG. 10 is a schematic diagram showing a transfer path of a conventional system for transferring an incoming call to a mobile terminal by a transfer service or an answering machine message service.

[Explanation of symbols]

1 ... handset (cordless phone handset), 2 ... connection cable,
2A: control signal line, 2B: audio signal line, 2C: GND
(Ground) line, 2D: control / voice signal line, 3A: control signal, 3B: voice signal, 4: base unit (cordless telephone base unit), 5: mobile terminal (mobile communication terminal), 6: mobile terminal charging Device (charger), 7: base station, 8: third party mobile terminal,
9 public network (public communication network), 11 antenna, 12 radio section, 13 control section, 14 audio processing section, 15 power supply control section, 16 display control section, 17 key operation section, 18 ... Memory number storage means, 19: interface section, 20: contact section A, 20E: ground terminal, 20F: power supply terminal, 20
G: audio signal terminal, 20H: control signal terminal, 21: contact part B, 21E: ground terminal, 21F: power supply terminal, 21
G: audio signal terminal, 21H: control signal terminal, 22: charger for slave unit, 23: charging circuit, 24A, 24B: connector, 25A, 25B: connector, 27: mounting hole, 31 ...
Antenna, 32 radio unit, 33 telephone control unit, 34 interface unit, 35 key operation unit, 36 display control unit, 37 line interface unit, 38 telephone number registration unit, 39 telephone handset, 41 telephone unit Antenna, 42 ... wireless unit,
43 ... control unit, 44 ... audio processing unit, 45 ... power control unit,
46: display control unit, 47: key operation unit, 48: telephone number registration unit, 50: interface unit, 60: contact unit A, 7
0: mobile terminal, 71: base unit (cordless phone base unit), 7
2,73 ... weak radio unit.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuhiro Sakasaka 5-2-1, Josuihonmachi, Kodaira-shi, Tokyo F-term in Hitachi Semiconductor Group 5K067 AA21 BB03 BB04 BB08 DD13 DD17 DD24 DD26 EE02 EE03 EE06 EE10 GG01 GG11 HH17 HH23 KK06 KK17

Claims (17)

[Claims] An ordinary telephone for transmitting and receiving via a public network,
A mobile terminal that transmits and receives via a mobile network, and the general telephone is composed of a base unit composed of a cordless telephone and one or more slave units, and the base unit and the mobile terminal The attached mobile terminal charger is connected by connection means capable of transmitting and receiving a voice signal and a control signal, and when an incoming call occurs to the mobile terminal in a state where the mobile terminal is placed on the mobile terminal charger, the connection means is connected. A communication system configured to receive the data via the base unit, call all the sub units, and enable communication by the main unit or the sub units. 2. When an incoming call occurs to a mobile terminal placed in the mobile terminal charger, the master unit receives the call, calls all the slave units, and goes off-hook when one of the slave units goes off-hook. By the control signal, to the mobile terminal, to connect the audio signal to the off-hook slave unit, or to detect that the slave unit on-hook,
The communication system according to claim 1, wherein the communication signal is cut off when a control signal indicating that the other party goes on-hook is received from the mobile terminal. 3. A general telephone for transmitting and receiving via a public network,
A mobile terminal for transmitting and receiving via a mobile network, wherein each of the general telephones includes a base unit composed of a cordless telephone and one or more sub units, and an extension call including a call between sub units is performed. It is a possible configuration, the mobile terminal charger where the mobile terminal is placed and the child device charger where the child device is placed are connected by connection means capable of transmitting and receiving voice signals and control signals,
When an incoming call occurs to the mobile terminal while the mobile terminal is placed on the mobile terminal charger, the mobile device placed on the mobile device charger is received and transmitted to the parent device via the connection means. A communication system characterized in that the master unit calls another slave unit to enable communication by the master unit or the slave unit. 4. When an incoming call occurs to a mobile terminal placed in the mobile terminal charger, a slave attached to the slave charger is received via the connection means and transmitted to the master. The master unit calls another slave unit, and when one of the master unit or the slave unit goes off-hook, informs the mobile terminal of the off-hook by a control signal, and connects the audio signal of the mobile terminal to the master unit or the slave unit that went off-hook. And detecting the on-hook of the connected slave unit or disconnecting the voice signal when receiving a control signal from the mobile terminal indicating that the other party has gone on-hook. A communication system as described. 5. The connection between the master unit and the mobile terminal charger and between the slave unit charger and the mobile terminal charger by connection means capable of transmitting and receiving a voice signal and a control signal. The communication system according to claim 1. 6. The communication system according to claim 1, wherein said connection means is constituted by a direct wireless line. 7. The mobile terminal has storage / setting means for storing and setting a call transfer control password which can be set freely, and the password or / and terminal-specific password stored by the storage / setting means. The communication system according to any one of claims 1 to 6, wherein the master unit is configured to receive a call when a call number is received. 8. The base unit receives a password output by the mobile terminal when connecting to a call received and transferred by the mobile terminal, and a password input by key input means when the mobile terminal is off-hook. The communication system according to any one of claims 1 to 7, wherein an off-hook is performed and a voice signal is connected only when the password and the password match. 9. The cordless telephone according to claim 1, wherein a call can be made via a mobile terminal connected to a base unit by a specific key operation. A communication system as described. 10. The base unit receives a terminal-specific call number output by the mobile terminal when transferring a call received by the mobile terminal and calling each slave unit, and preliminarily stores the call number corresponding to the call number. The communication system according to any one of claims 1 to 9, wherein the registered ring tone or the like is sounded. 11. A general telephone comprising a base unit consisting of a cordless telephone for transmitting and receiving via a public network and one or more slave units, and a mobile terminal for transmitting and receiving via a mobile network, A mobile terminal equipped with a mobile terminal charger used in a communication system in which a charger for a parent device and / or a child device and a mobile terminal charger are connected by connection means capable of transmitting and receiving a voice signal and a control signal, The mobile terminal is provided with a contact portion electrically connected to an audio signal processing section, a control signal processing section, and a ground potential section, and the mobile terminal charger is provided with a contact section capable of contacting the contact section of the mobile terminal. A mobile terminal provided with a mobile terminal charger, the connector having: a connector electrically connected to a contact portion of the mobile terminal charger. 12. A general telephone comprising a base unit comprising a cordless telephone for transmitting and receiving via a public network and at least one slave unit, and a mobile terminal for transmitting and receiving via a mobile network, A mobile terminal used in a communication system in which a charger for a parent device and / or a child device and a mobile terminal charger are connected by connection means capable of transmitting and receiving a voice signal and a control signal, wherein the mobile terminal includes: A mobile terminal having a direct wireless line for transmitting and receiving the voice signal and the control signal. 13. A general telephone comprising a base unit composed of a cordless telephone for transmitting and receiving via a public network and one or more slave units, and a mobile terminal for transmitting and receiving via a mobile network, A master unit or / and a slave unit and a mobile terminal charger are master units used in a communication system connected by a connection unit capable of transmitting and receiving a voice signal and a control signal. A connector electrically connected to the signal processing unit, the control signal processing unit, the ground potential unit, and a signal line for transmitting and receiving a voice signal and a control signal, and a connector for connecting to a power supply line for matching the ground potential are provided. The parent machine that features it. 14. A general telephone comprising a base unit comprising a cordless telephone for transmitting and receiving via a public network and one or more slave units, and a mobile terminal for transmitting and receiving via a mobile network, A base unit used in a communication system in which a base unit or / and a child unit charger and a mobile terminal charger are connected by a connection unit capable of transmitting and receiving a voice signal and a control signal. A master unit provided with a direct wireless line for transmitting and receiving the voice signal and the control signal. 15. A general telephone comprising a base unit comprising a cordless telephone for transmitting and receiving via a public network and one or more slave units, and a mobile terminal for transmitting and receiving via a mobile network, A child device with a child device charger used in a communication system in which a parent device and / or a child device charger and a mobile terminal charger are connected by connection means capable of transmitting and receiving a voice signal and a control signal, An audio signal processing unit,
A contact portion electrically connected to a control signal processing portion and a ground potential portion; and a charger for the slave unit having a contact portion capable of contacting a contact portion of the slave unit. And a connector that is electrically connected to the contact portion of (1). 16. A general telephone comprising a base unit composed of a cordless telephone for transmitting and receiving via a public network and one or more subunits, and a mobile terminal for transmitting and receiving via a mobile network, A slave unit used in a communication system in which a charger for a master unit and / or a slave unit and a mobile terminal charger are connected by a connection unit capable of transmitting and receiving a voice signal and a control signal, wherein the slave unit includes A slave unit provided with a direct wireless line for transmitting and receiving a voice signal and a control signal. 17. A general telephone comprising a base unit comprising a cordless telephone for transmitting and receiving via a public network and at least one slave unit, and a mobile terminal for transmitting and receiving via a mobile network, A connection cable used in a communication system in which a charger for a parent device and / or a child device and a mobile terminal charger are connected by a connection means capable of transmitting and receiving a voice signal and a control signal, wherein the connection cable is a voice cable. A connection cable comprising a signal line, a control signal line, and a power supply line, and a connector provided at both ends thereof, which is connectable to any of the mobile terminal charger, the master unit, and the slave unit charger.