JPH10173744A - Telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To terminate a telephone call, which is made to a hand set, through a telephone master set, connected to a cable public line by connecting the cordless telephone master set connected to the cable telephone line and capable of being connected to the cordless telephone hand set with an extension radio line to a portable telephone set, capable of being connected to a public base station with a public radio line through an adapter device. SOLUTION: When a telephone call is terminated through a public radio line WLp and a PHS base station 2 to a PHS hand set 20-h in a dual wait mode, the PHS hand set 20-h is switched to a public mode. The call incoming information is converted into the transmission information of cordless telephone format through a transmission line 45 and transmitted through an extension WLh to a master set 10C of cordless telephone. Thus, the telephone call terminated through the PHS station 2 to the PHS hand set 20-h can be made incoming to the master set 10C, connected to a public cable telephone line LN. Further, speaking is enabled between a persons of line wire 2 and a subscriber house 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone system that enables a base station of a cordless telephone to receive an incoming call of a portable telephone line as a public wireless line.

[0002]

2. Description of the Related Art A cordless telephone base unit (hereinafter simply referred to as a base unit) connected to a wired telephone line, and the base unit and a VHF
2. Description of the Related Art A so-called cordless telephone including a handset (hereinafter referred to as a handset) connected by a wireless band of a band or a UHF band is known.

[0003] Usually, the base unit is fixed to a specific installation location, connected to a wired telephone line, and used for wireless transmission / reception with a handset unit, and various additional functions such as a speakerphone, an answering machine function, and a telephone directory function. Connected to a commercial power source to use the function. One or more slave units have a built-in rechargeable battery (secondary battery).
For example, it is possible to freely move and talk within a range of 100 m.

[0004] Among the cordless telephones described above, there is a digital cordless telephone in which a voice signal is digitally processed, and a time axis and a data amount are compressed and transmitted. Also,
Some of these digital cordless telephones are compatible with PHS (Personal Handy Phone System; simple type portable telephone), and PHS-compatible digital cordless telephones have a telephone number of a base unit (for example, 03-5448-331).
Phone number different from 1) (for example, 050-123-45)
67), the child device can be used alone, so the user often carries the child device and goes out.

[0005] In this specification, "PHS" is used as a word meaning a system, and PHS commonly referred to as "PHS handset" is used.

Conventionally, as shown in FIG. 9, for example, in a subscriber home HM, a digital cordless telephone base unit 10P registered as a PHS-compatible base unit is connected to the telephone station 1 through a wired telephone line LN. With the master unit 10P and PH
An S-compatible handset (PHS handset) 20-h is connected via a wireless extension line (hereinafter, a home wireless line) WLh.

[0007] In the subscriber's home HM, generally, the slave unit 20-
h is placed on the charging stand 30 and has a built-in 2
The next battery is charged. The charging stand 30 is provided at an appropriate place where radio waves from the PHS base station 2 can easily reach, for example, at a window or the like, within a communication range with the base unit 10P.

[0008] The PHS base station 2 is connected to a public wireless line WL.
p, the mobile device 20 on the go or in the subscriber's home HM
-O, 20-h. The PHS base station 2 is connected to the telephone station 1 via a link LK.

[0009] When the user carries the PHS handset and goes out to use it as a simple portable telephone corresponding to the public wireless line WLp, the user sets the PHS handset to the public mode. Then, the PHS handset receives the incoming call by the telephone number (for example, 050-123-4567) assigned as the portable telephone corresponding to the public wireless line WLp through the PHS base station 2.

[0010] When the user is at home and uses the PHS handset as a cordless handset compatible with the home wireless line WLh, the user sets the PHS handset to the home mode. Then, an incoming call to the telephone number assigned to the cordless telephone can be received by the PHS handset.

Further, in order to make the PHS handset compatible with both the home wireless line WLh and the public wireless line WLp, for example, a dual standby mode in which incoming calls from the public mode and the home mode can be simultaneously set. There is also a PHS handset that can do this.

[0012] In this case, it is determined from which of the lines the call is received based on the difference in the protocol between the home wireless line WLh and the public wireless line WLp. Connected. In this case, the PHS handset can receive incoming calls to any telephone number.

[0013]

By the way, when a subscriber is at home, a call (incoming call) received by a PHS handset number (for example, 050-123-4567) via a PHS base station is as follows. If the PHS handset is set to the public mode or the dual mode, it can be received by the PHS handset.

If the incoming call can be received by the cordless telephone base unit, the base unit is easy to operate and has various convenient functions such as a speakerphone, an answering machine function and a telephone directory function. It is convenient for the person.

However, in the conventional telephone system as described above, the PHS handset 20-h receives the PH
The incoming call via the S base station 2 is
In M, an incoming call can be made to the PHS handset 20-h. However, as shown by “X” in FIG. ing.

[0016] Therefore, when a call is made to the PHS handset 20-h in the subscriber home HM, the subscriber:
There were problems that it was not possible to use various convenient functions of the base unit 10P, and it was difficult to operate various keys because the PHS handset 20-h was small.

However, for example, by adding a wireless terminal called a "home station" to a subscribed telephone line and using a "transfer telephone service" provided by a telephone company to designate a subscribed telephone at home as a transfer destination, It is possible to receive a call from a PHS handset at home.

[0018] However, the use of the "transfer telephone service" is limited to telephone calls received when the power of the PHS handset is not turned on or when the PHS handset is in a place where radio waves cannot reach. If the user is at home, the conditions for using this service are not necessarily met, and this is not convenient for the subscriber. For example, when the PHS handset is used for business use while on the go and for private use at home, it may not be desirable to transfer the PHS handset to the home when the PHS handset is not turned on while away from home. In view of the foregoing, an object of the present invention is to provide a telephone system in which a call received by a portable telephone such as a PHS handset via a base station can be received by a cordless telephone base unit connected to a wired public telephone line. Is to provide.

[0019]

To solve the above-mentioned problems, a telephone system according to the present invention comprises a cordless telephone base unit connected to a wired telephone line and connectable to a cordless telephone subunit and an extension line, and a public wireless system. A portable telephone having an input / output terminal for voice information, an input / output terminal for control signals, and a cordless telephone base unit that can be connected to the cordless telephone base unit via a wireless extension line. An adapter device including a wireless communication function unit of a telephone handset, and a connection unit for connecting the input / output terminal of the audio information and the input / output terminal of the control signal of the mobile phone and the wireless communication function unit And when the mobile phone is connected to the adapter device, an incoming call to the mobile phone can be received by the cordless telephone base unit. It is characterized in that characterized in that the the like.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a telephone system according to the present invention will be described below with reference to FIGS.

[First Embodiment] FIG. 1 shows the entire configuration of a first embodiment of the present invention, and FIG. 2 shows the configuration of the main part thereof. In FIG. 1, portions corresponding to FIG. 9 described above are denoted by the same reference numerals, and a description thereof is partially omitted.

In FIG. 1, a telephone station 1 and a PHS base station 2
Is connected via the link LK, and in the subscriber's home HM, the digital cordless telephone base unit 10C having the various functions described above is connected to the telephone station 1 via the telephone line LN.
And a PHS mounted on the charging stand 30C.
The handset 20-h is connected to the PHS base station 2 via the public wireless line WLp.

In this embodiment, a cordless telephone handset function circuit 40C is provided in the charging stand 30C. The slave unit function circuit 40C is at least connected to the master unit 10C.
It has a function of wirelessly communicating voice information and control signals. The slave unit function circuit 40C is connected to the master unit 10C through a home wireless line (extension) WLh, and is also connected to the PHS handset 20-h through a transmission line 45.
Connected to

As shown in FIG. 2, the PHS handset 2
0-h is configured to include an RF transmitting / receiving circuit 22 connected to a transmitting / receiving antenna 21 and a baseband processing circuit 23.

In the baseband processing circuit 23, baseband signals such as audio signals and data are converted to TDMA (Ti
me-Division Multiple Access), AD conversion, DA
While being processed for transmission or reception, such as conversion, data compression / decompression, etc., the RF transmission / reception circuit 22 performs various processes such as FSK modulation / FSK demodulation and RF transmission / reception.

Transmission / reception information is transmitted / received between the RF transmission / reception circuit 22 and the baseband circuit 23, and audio signals are transmitted / received between the baseband circuit 23 and the receiver 24 and the transmitter 25. Will be Further, the RF transmitting / receiving circuit 22 and the baseband circuit 23 as described above.
A microcomputer 26 is provided for controlling the operation of the microcomputer.

In FIG. 2, parts not directly related to the present invention, such as dial keys, function keys, and a liquid crystal display, are omitted.

On the other hand, the slave unit function circuit 4 of the embodiment of FIG.
0C is the same as the PHS handset 20-h except that the receiver 24 and the transmitter 25 are removed.
It includes a transmission / reception circuit 42, a baseband processing circuit 43, and a microcomputer 44.

Then, the slave unit function circuit 40C and the PHS
A required DC power is supplied from the charging circuit 31 in common with the handset 20-h.

In this embodiment, the slave unit function circuit 40C
Between the baseband processing circuits 23 and 43 of the PHS handset 20-h and the microcomputers 26 and 44.
Are connected by a transmission line 45, and audio data and control data are exchanged at appropriate timing.

In order to connect to the transmission line 45,
It is necessary to provide a terminal (not shown) on the PHS handset 20-h. Further, instead of the transmission line 45, an infrared transmission system can be used.

Next, the operation of the embodiment shown in FIG. 1 will be described. In this embodiment, for example, the PHS handset 20-h (for example, 050-123-4567) in the dual standby mode as described above is connected to the public wireless line W.
When a call is received through Lp and the PHS base station 2, the PHS handset 20-h is switched to the public mode.

Then, the PHS handset 20-h
Is supplied to the cordless slave function circuit 40C via the transmission line 45, converted into cordless telephone format transmission information, and transmitted to the cordless telephone base unit 10C via the extension WLh.

Thus, PHS base station 2 transmits P
A call arriving at the HS handset 20-h is sent to a base unit 10C (for example, 0) connected to the public wired telephone line LN.
3-5448-3311).

As described above, in this embodiment, the base unit 1 of the cordless telephone connected to the public wired telephone line LN.
Since the incoming call to the PHS handset 20-h arrives at the 0C side, the response operation is easy, and various convenient functions of the base unit 10C can be utilized.

Also, in this embodiment, a call can be made to the cordless telephone base unit 10C through the public wired telephone line LN, so that two external lines and one of the subscriber premises 1 are provided.
A three-party call with a person becomes possible.

In the above-described example, the PHS handset is set to the dual mode. However, by setting the home PHS handset 20-h to the public wireless mode, the same operation and effect as described above can be obtained.

[Second Embodiment] Next, another embodiment of the telephone system according to the present invention will be described with reference to FIGS.

FIG. 3 shows the entire configuration of the second embodiment of the present invention, and FIG. 4 shows the configuration of the main part thereof. This figure 3
4 and FIG. 4, parts corresponding to those in FIGS. 1 and 2 are given the same reference numerals, and a description thereof is partially omitted.

In FIG. 3, a telephone station 1 and a PHS base station 2
Is connected through the link LK, and in the subscriber home HM, the PHS handset 20-h connected to the telephone station 1 through the telephone line LN and connected to the telephone station 1 through the telephone line LN, Public wireless line W
Lp, is connected to the PHS base station 2 and is a cordless telephone handset 20C placed on the charging stand 30B.
Is connected to master device 10C through extension WLh.

In this embodiment, each charging stand 30
A and 30B have built-in communication function circuits 40A and 40B,
PHS handset 20-h and cordless telephone handset 20C are connected via transmission lines 45A and 45B, respectively, and both communication function circuits 40A and 40B are connected via transmission line 46.

As shown in FIG. 4, each communication function circuit 40A, 40B of the embodiment of FIG. 3 includes baseband processing circuits 43A, 43B and microcomputers 44A, 44B.
B and the same configuration.

A baseband processing circuit 43A and a microcomputer 44A of one communication function circuit 40A;
The PHS handset 20-h is connected by a transmission line 45A, and the transmission line is connected between the baseband processing circuit 43B and the microcomputer 44B of the other communication function circuit 40B and the cordless telephone handset 20C. 45B, transmission and reception of audio data and control data are performed at appropriate timing. The transmission line 4 is also provided between the two communication function circuits 40A and 40B.
6, voice data and control data are exchanged.

Further, a required DC power is supplied from the charging circuit 31A to both the PHS handset 20-h and the communication function circuit 40A, and the cordless telephone handset 2
0C and the communication function circuit 40B.
Supplies the required DC power.

The PHS handset 20-h and the cordless telephone handset 20C are connected to transmission lines 45A and 45A, respectively.
Terminals (not shown) need to be provided for connection with B. Also, both communication function circuits 40A, 40B
An infrared transmission system can be used instead of the transmission line 46 between.

Next, the operation of the embodiment shown in FIG. 3 will be described. In this embodiment, the PHS handset 20-h (for example, 0
50-123-4567), the public wireless lines WLp and P
When a call is received through the HS base station 2, the PH
The S handset 20-h is switched to the public mode.

The incoming information from the PHS handset 20-h is supplied to one communication function circuit 40A via a transmission line 45A, and further supplied to the other communication function circuit 40B via a transmission line 46.

Then, from the communication function circuit 40B, the data is supplied to the cordless telephone handset via the transmission line 45B, and converted into cordless telephone format transmission information.
It is transmitted to the base unit 10C of the cordless telephone through Lh.

As a result, the PHS base station 2
A call arriving at the HS handset 20-h is sent to a base unit 10C (for example, 0) connected to the public wired telephone line LN.
3-5448-3311).

As described above, in this embodiment, the base unit 1 of the cordless telephone connected to the public wired telephone line LN
Since the incoming call to the PHS handset 20-h arrives at the 0C side, the response operation is easy and various convenient functions of the base unit 10C can be utilized.

In this embodiment, a call can be made to the cordless telephone base unit 10C through the public wired telephone line LN.
A three-party call with a person becomes possible.

[Third Embodiment] Next, still another embodiment of the telephone system according to the present invention will be described with reference to FIGS.

FIG. 5 shows the configuration of still another embodiment of the present invention. In FIG. 5, portions corresponding to those in FIG. 9 are given the same reference numerals, and a part of the description will be omitted.

In FIG. 5, a telephone station 1 and a PHS base station 2
Is connected via the link LK, and in the subscriber home HM, the digital cordless telephone base unit 10C registered as the PHS base unit is connected to the telephone station 1 via the telephone line LN and mounted on the charging stand 30. The placed PHS handset 20S communicates with the PH through the public wireless line WLp.
Connected to S base station 2.

In this embodiment, a PHS handset 20S is provided with an incoming call relay function by software. The configuration of the PHS handset 20S is shown in FIG.
Is substantially similar to the handset 20-h.

Next, the operation of the third embodiment of FIG. 5 will be described with reference to FIGS.

As described above, in a digital cordless telephone or the like, the time axis and the data amount of audio data are compressed by TDMA processing, and burst transmission data (baseband signal) is generated. A transmission signal modulated by the transmission data is allocated to a transmission slot at a predetermined timing and transmitted, and a reception signal from the other party is received in a subsequent reception slot.

In the embodiment shown in FIG. 5, when the PHS handset 20S is in the ordinary public mode, transmission and reception with the PHS base station 2 are performed by the public transmission slot Stp and the public transmission slot Stp as shown in FIG. 6A. It is repeated in a time-sharing manner by the public reception slot Srp. The repetition period Tc and the time length Ts of the transmission slot Stp are set, for example, as follows: Tc = 5 mS; Ts = Tc / 8 = 625 μS.

When the PHS handset 20S is in the relay mode of the present invention, as shown in FIG.
As shown in FIG. 6A, transmission and reception with the HS base station 2 are repeated in a time division manner by the public transmission slot Stp and the public reception slot Srp, and P
Transmission and reception between the HS base unit 10P and the PHS handset 20S are repeated in a time-division manner by the extension transmission slot Sth and the extension reception slot Srh at different timings from the public transmission slot Stp and the public reception slot Srp. It is.

[Timing notification processing] Master device 10P and PH
The timing of the extension described above with the S handset 20S is set based on a timing notification routine 100 as shown in FIG.

In this routine 100, in the first step 101, an incoming call is waited for on both the public line and the extension. When the incoming call is received, the process proceeds to the next step 102, where it is determined whether or not the incoming call on the extension is detected. If no incoming call is detected, the process returns to step 101.

If an incoming call of an extension is detected in step 102, the process proceeds to step 103, where the slave unit notifies the PHS master unit of the extension timing as described above. Then, the process returns to step 101, and the processing of the routine 100 as described above is repeated. On the other hand, the master unit stores the extension timing notified from the slave unit (step 110).

[Receiving Relay Process] The receiving relay routine 120 of FIG. 8 is applied to the PHS handset 20S.

In the incoming call relay routine 120,
In the first step 121, a PHS incoming call is awaited. When the incoming call is received, the process proceeds to the next step 122, where it is determined whether or not the mobile phone is within the communication range of the master unit. If it is within the calling range of the base unit, the process proceeds to step 123, and as described above,
An incoming call is notified to the master unit at a predetermined timing.

In the next step 124, it is determined whether or not the parent device has responded to the incoming call notification. If the parent device has responded, the process proceeds to step 123, where the call information is relayed. .

In the next step 126, the end of the call is waited. When the call is finished, the line is released (step 127), and the process returns to the step 121. Step 120 is repeated. On the other hand, if the parent device does not respond in step 124, the process proceeds to step 128 and the own device (P
HS handset) responds, and in the next step 129,
Normal incoming call processing is performed. Also, in step 122,
If it is out of the calling area of the master unit, the process proceeds to step 129, where normal incoming call processing is performed.

As described above, in this embodiment, the PHS-compatible base unit 10 connected to the public wired telephone line LN is connected.
On the P side, the incoming call to the PHS handset 20S is received, so that the answering operation is easy and the master unit 1
It is possible to utilize various convenient functions provided in the OS.

Also, in this embodiment, a call can be made to PHS-compatible master device 10P via public wired telephone line LN, so that a three-party call can be made between two external lines and one subscriber's premises. Becomes

[Other Embodiments] In each of the embodiments shown in FIGS. 1 and 3 described above, a case has been described in which the system is configured including a PHS handset. A system can also be configured.

[0070]

As described above, according to the present invention, it is possible for a master unit connected to a public telephone line to receive an incoming call from a PHS handset or an ordinary portable telephone. Further, according to the present invention, a three-party call between two external lines and one subscriber's premises can be made.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a configuration of an embodiment of a telephone system according to the present invention.

FIG. 2 is a block diagram showing a configuration of a main part of the embodiment of FIG. 1;

FIG. 3 is a conceptual diagram showing a configuration of another embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a main part of the embodiment of FIG. 3;

FIG. 5 is a conceptual diagram showing a configuration of still another embodiment of the present invention.

FIG. 6 is a time chart for explaining the operation of the embodiment in FIG. 5;

FIG. 7 is a flowchart for explaining the operation of the embodiment of FIG. 5;

FIG. 8 is a flowchart for explaining another operation of the embodiment of FIG. 5;

FIG. 9 is a conceptual diagram for explaining the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Telephone station, 2 ... PHS base station, 10C ... Cordless telephone base station, 10P ... PHS base station, 20-h ... PHS handset, 20C ... Cordless telephone handset, 20 ... PHS handset with ringing relay function, 30, 30A , 30B,
30C: charging stand, 40A, 40B: communication function circuit, 40
C: slave unit function circuit, 100: timing notification routine,
120: incoming call relay routine, LN: subscribed telephone line, WL
h: home wireless line (extension), WLp: public wireless line,
Stp: public transmission slot, Srp: public reception slot, Sth: extension transmission slot, Srh: extension reception slot

Claims (7)

[Claims] A cordless telephone base unit connected to a wired telephone line and connectable to a cordless telephone handset and an extension wireless line, and a connection to a public base station is possible by a public wireless line, and voice information and control are provided. A mobile phone having a signal input / output terminal; and a wireless communication function unit of the cordless telephone slave unit that can be connected to the cordless telephone base unit by a wireless extension line, and the voice information and control signal of the mobile phone. An adapter device having a connection means for connecting the input / output terminal and the wireless communication function unit, wherein the cordless telephone receives an incoming call to the mobile phone when the mobile phone is connected to the adapter device. A telephone system characterized in that a call can be received by a base unit. 2. The telephone system according to claim 1, wherein said adapter device is a charging stand of said portable telephone. 3. The telephone system according to claim 1, wherein said portable telephone is connectable to said cordless telephone master as said cordless telephone slave via said extension wireless line. 4. A cordless telephone base unit connected to a wired telephone line, and a cordless telephone base unit connectable to the cordless telephone base unit by an extension wireless line and having an input / output terminal for voice information and a control signal. A charging base including a charging function unit for charging the cordless telephone handset; a first communication function unit connected to an input / output terminal for voice information and control signals of the cordless telephone handset; A mobile phone that can be connected to a public base station and has an input / output terminal for voice information and a control signal; a second communication function unit connected to the first communication function unit by wire; An adapter device having connection means for connecting the input / output terminal of the voice information and the control signal of the mobile phone to the second wireless communication function unit. When connected to the adapter device, a telephone system, characterized in that the incoming call to the mobile phone was set to allow incoming in the cordless telephone base unit. 5. The telephone system according to claim 3, wherein the adapter device is a charging stand for the mobile phone. 6. The telephone system according to claim 3, wherein said portable telephone is connectable to said cordless telephone master as said cordless telephone slave via said extension wireless line. 7. A cordless telephone base unit connected to a wired telephone line and connectable to a cordless telephone slave unit and an extension wireless line, a mode of the cordless telephone slave unit, and connection to a public base station by a public wireless line. And a mobile phone mode comprising a mobile phone mode, wherein the mobile phone is provided with incoming call discriminating means for discriminating incoming calls from the extension radio line and the public radio line, and the public radio line. A call relaying means for relaying an incoming call from the telephone to the cordless telephone base unit via the extension wireless line.