JPH10200932A - Personal handy phone system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a personal handy phone system capable of calling a slave unit and making a telephone call even when the slave unit is out of a communicable range of a cordless telephone mode when receiving a call to a master unit. Aim. A base unit (1A) notifies a base station (30) of a line interface unit (6) interconnected with a wired telephone line (5) and a base station (30) when a slave unit (20) is out of a communicable range in a cordless telephone mode. Control unit 8a for calling slave unit 20
And a radio unit 9 for receiving a high-frequency signal from the handset 20 to reproduce a control signal and the like, modulating the control signal and the like, and transmitting the modulated signal as a high-frequency signal to the handset 20 and the base station 30. Reference numeral 20 denotes a slave radio unit that receives a high-frequency signal from the base unit 1A and the base station 30, reproduces a control signal and the like, modulates the control signal and the like, and transmits it as a high-frequency signal to the base unit 1A and the base station. 26, and a slave unit control unit 24 for controlling the whole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal handyphone system including a master unit, a slave unit, and a base station.

[0002]

2. Description of the Related Art In recent years, cordless phones,
Mobile communication such as a mobile phone has been widely used.

Hereinafter, a conventional personal handyphone system will be described. FIG. 2 is a block diagram showing a conventional personal handyphone system. In FIG. 2, reference numeral 1 denotes a master unit, 2 denotes a key input unit which includes dial buttons and the like necessary for making a telephone call, and enables external input,
3 is a microphone, 4 is a speaker, 5 is a wired telephone line, 6 is a line interface unit for interconnecting with the wired telephone line 5, 7 is an audio processing unit for processing audio signals, and 8 is a signal from the wired telephone line 5. A control unit that controls each unit in response to an incoming call detection signal and a control signal transmitted from a slave unit 20 described below;
Reference numeral 9 denotes a radio unit for modulating a control signal and an audio signal and transmitting the modulated signal as a high-frequency signal, and reproducing a control signal and an audio signal from the high-frequency signal transmitted from the slave unit 20, and 10 an antenna.

Further, reference numeral 20 denotes a slave unit, 21 denotes a speaker, 22
Denotes a microphone, 23 denotes a key input unit, 24 denotes a slave unit control unit that receives data from the key input unit 23 and a control signal sent from a base station 30 to be described later, and controls each unit.
25 is an audio processing unit for processing an audio signal, 26 is a control signal, modulates an audio signal and transmits it as a high frequency signal,
The slave unit wireless unit 27 for reproducing a control signal and an audio signal from the high-frequency signal transmitted from the master unit 1 and the base station 30, and 27 is an antenna.

Further, 30 is a base station, 31 is an antenna,
Reference numeral 32 denotes a PHS transmission / reception unit which modulates a control signal and an audio signal and transmits the modulated signal as a high-frequency signal to the slave 20, and reproduces a control signal and an audio signal from the high-frequency signal transmitted from the slave 20. Is a base station control unit that controls each unit of the base station in response to an incoming call from a wired telephone line and a control signal sent from the slave unit 20, and 34 is a base station switch.

[0006] The operation of the personal handyphone system configured as described above when calling in and out of a cordless telephone mode and in a public mode will be described.

First, the operation at the time of calling when using in the cordless telephone mode will be described. When making a call, the handset 20
Is turned on, and the call button is pressed (the operation of pressing the call button is performed using the key input unit 23). Then, the slave unit control unit 24 controls the slave unit wireless unit 26 to send a control signal to the master unit 1, and the master unit 1 receives the control signal from the slave unit 20 by the wireless unit 9. The control unit 8 in the base unit 1 decodes the control signal and, when detecting that there is a call request from the handset 20, transmits an acknowledgment (ACK) signal using the wireless unit 9 and furthermore, a wired telephone line. 5 is connected to the slave unit 20. Thereafter, as in the case of a normal wired telephone, when a telephone number is input through the key input unit 23 in the child device 20, the child device control unit 24 generates a multi-frequency signal (DTMF signal) corresponding to the input telephone number. Send The multi-frequency signal is transmitted via the slave radio unit 26 and the antenna 27, and the master unit 1 receives the multi-frequency signal via the antenna 10 and the radio unit 9, and transmits the multi-frequency signal to the audio processing unit 7 and the line interface unit 6. And sends it out to the wired telephone line 5. As described above, the call of the personal handyphone system is performed, and the voice processed by the voice processing unit 25 of the child device 20 is transmitted to the speaker 21.
Or by using the audio processing unit 25 to process the audio signal input using the microphone 22 into a high-frequency signal and transmitting the processed signal to the master unit 1 side, thereby enabling a normal telephone call.

Next, the operation when receiving an incoming call in the cordless telephone mode will be described. First,
Control unit 8 of base unit 1 detects an incoming call from wired telephone line 5.

The control unit 8 having detected the incoming call transmits a control signal via the radio unit 9 to notify the slave unit 20 of the incoming call. In the slave unit 20, the control signal from the master unit 1 is received by the antenna 27 and the slave unit wireless unit 26, and the slave unit control unit 2
4 is input. The handset control unit 24 detects from the control signal that there is an incoming call to the base unit 1 and is calling the handset 20, sounds a ringing sound of the handset 20, and informs the user that there is an incoming call. . Thereafter, when the user presses the talk button in the key input unit 23 of the slave unit 20, the slave unit control unit 24 transmits an acknowledgment (ACK) signal to the master unit 1 using the slave unit wireless unit 26. Upon receiving the acknowledgment (ACK) signal, the control unit 8 of the base unit 1 connects the wireless link from the wired telephone line 5 to the slave unit 20 and enters a talking state.

Next, the operation at the time of calling and receiving when using in the public mode will be described. First, the operation at the time of calling when used in the public mode will be described. When making a call, the power of the slave unit 20 is turned on, the telephone number is input by the key input unit 23, and then the call button is pressed (the operation of pressing the call button is performed using the key input unit 23). Then, the slave unit control unit 24 controls the slave unit wireless unit 26 to send a control signal to the base station 30, and the base station 30 transmits the control signal P via the antenna 31.
The control signal from the slave unit 20 is received by the HS transceiver 32. The base station control unit 33 in the base station 30 decodes the control signal and, when detecting that there is a call request from the handset 20, transmits an acknowledgment (ACK) signal using the PHS transmission / reception unit 32. A wireless link from the base station 30 to the slave 20 is connected. Thereafter, a call can be made in the same manner as the call operation when used in the cordless telephone mode. The base station 30 decodes the DTMF signal generated by the slave unit 20 with the base station exchanger 34, and connects a wireless link between the slave unit 20 and another slave unit or a wireless link from the wired telephone line to the slave unit 20, Then, it enters a normal call state.

Next, the operation when receiving an incoming call in the case of using in the public mode will be described.

First, the base station control unit 33 detects an incoming call from another slave unit or the wired telephone line 5.

The base station control unit 33 that has detected the incoming call
A control signal is transmitted via the PHS transmission / reception unit 32 to notify 0 of the incoming call. In the slave unit 20, the base station 30
Is received by the antenna 27 and the slave unit wireless unit 26 and input to the slave unit control unit 24. Slave control unit 2
The control signal 4 detects that the handset 20 is being called by the control signal, sounds a ringing sound of the handset 20, and informs the user that there is an incoming call.

Thereafter, the user operates the key input unit 2 of the handset 20.
When the call button in 3 is pressed, the slave unit control unit 24 transmits an acknowledgment (ACK) signal to the base station 30 using the slave unit wireless unit 26. Upon receiving the acknowledgment (ACK) signal, the base station control unit 33 connects a wireless link with another slave unit or a wireless link from the wired telephone line 5 to the slave unit 20, and enters a call state.

[0015]

However, in the above-mentioned conventional personal handy phone system, when there is an incoming call to the base unit 1 via the wired telephone line 5, the handset 20 can communicate in the cordless telephone mode. If the user is outside, there is a problem that a call cannot be made without calling the slave unit 20.

In this personal handyphone system, it is required that a call can be made by calling the slave even when the slave is out of the communicable range of the cordless telephone mode when receiving a call to the master.

It is an object of the present invention to provide a personal handy phone system which can call and talk to a slave unit even when the slave unit is out of the communicable range of the cordless telephone mode when receiving a call to the master unit. I do.

[0018]

SUMMARY OF THE INVENTION In order to solve this problem, a personal handyphone system according to the present invention is a personal handyphone system comprising a master unit, a slave unit and a base station, wherein the master unit is a wired telephone. A line interface unit for interconnecting with a line, and controlling the whole unit and, when the slave unit is out of the communicable range in the cordless telephone mode, notifying the base station of the fact and notifies the base station of the slave unit. And a radio unit that receives a high-frequency signal from the slave unit, reproduces a control signal and an audio signal, modulates the control signal and the audio signal, and transmits the modulated signal to the slave unit and the base station as a high-frequency signal. The slave unit receives the high-frequency signal from the base unit and the high-frequency signal from the base station, reproduces the control signal and the audio signal, and modulates the control signal and the audio signal as a high-frequency signal. A handset radio unit to be transmitted to the machine and the base station has a configuration and a slave machine control unit for controlling the whole.

Thus, there is provided a personal handy phone system which can call and talk to the slave unit even when the slave unit is out of the communicable range of the cordless telephone mode when receiving a call to the master unit.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a personal handyphone system comprising a master unit, a slave unit and a base station, wherein the master unit is connected to a wired telephone line. A line interface unit for controlling the whole unit, and a control unit for notifying the base station of the fact that the slave unit is out of the communicable range in the cordless telephone mode and calling the slave unit to the base station when the slave unit is out of the communicable range in the cordless telephone mode. , Receiving a high-frequency signal from the slave unit to reproduce a control signal, an audio signal and a control signal,
A wireless unit that modulates the audio signal and transmits it to the slave unit and the base station as a high-frequency signal, and the slave unit receives the high-frequency signal from the master unit and the high-frequency signal from the base station and receives a control signal; A control unit that reproduces an audio signal, controls a control signal, modulates the audio signal, and transmits the modulated signal as a high-frequency signal to a master unit and a base station, and a slave unit control unit that controls the entire unit. In the case where the slave unit is outside the communicable range in the cordless telephone mode, the slave unit is called in the public mode and a call is made.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 is a block diagram showing a personal handyphone system according to Embodiment 1 of the present invention. In FIG. 1, a key input unit 2, a microphone 3, a speaker 4, a wired telephone line 5, a line interface unit 6, an audio processing unit 7, a wireless unit 9, an antenna 10, a slave unit 20, a speaker 21, a microphone 22, and a key input unit 23, slave unit control unit 24,
The voice processing unit 25, the handset wireless unit 26, the antenna 27, the base station 30, the PHS transmitting / receiving unit 32, the base station control unit 33, and the base station switch 34 are the same as those in FIG. Description is omitted. 1A is a master unit, 8a is a control unit, and the control unit 8a receives an incoming call detection signal from the wired telephone line 5, and when the slave unit 20 is out of the communicable range in the cordless telephone mode, the base station 30 To the slave unit 20 to notify that the slave unit 20 is out of the communicable range in the cordless telephone mode, and receives control signals sent from the slave unit 20 and the base station 30 to control each unit.

The operation of the personal handyphone system configured as described above will be described. Regarding the operation in the present embodiment, the operation at the time of calling when used in the public mode and the operation at the time of calling when used in the cordless telephone mode are the same as the operations in the conventional personal handy phone system, Description is omitted.

The operation at the time of receiving a call will be described. In the present embodiment, the telephone number of master unit 1A and slave unit 20 in public mode are set.
Is the same or a related number (a related number such that the telephone number of the slave unit 20 in the public mode can be determined from the telephone number of the base unit 1A), and the base station 30
Preferentially calls the master unit 1A.

The operation at the time of receiving a call when the slave unit 20 is within the communicable range in the cordless telephone mode is exactly the same as the conventional operation at the time of receiving a call when using the cordless telephone mode. Is omitted.

The operation when the slave unit 20 is out of the callable range in the cordless telephone mode will be described. First, the control unit 8a of the master unit 1A detects an incoming call from the wired telephone line 5. The control unit 8a that has detected the incoming call transmits a control signal via the wireless unit 9 to notify the slave unit 20 of the incoming call. At this time, handset 20 is out of the communicable range in the cordless telephone mode and cannot transmit an acknowledgment (ACK) signal, and base unit 1A cannot receive the acknowledgment (ACK) signal. It is determined that handset 20 is out of the communicable range in the cordless telephone mode. Next, the control unit 8a notifies the base station 30 to the effect that the handset 20 is out of the communicable range in the cordless telephone mode to the base station 30 by a DTMF signal or the like. The base station 30 that has received this notification,
The slave unit 20 is called in the public mode using the same telephone number as A. The slave unit 20 called in the public mode receives a call by the same operation as in the conventional example in the case of using the public mode, and the call becomes possible.

As described above, according to the present embodiment, the telephone number of master unit 1A and the telephone number of slave unit 20 in the public mode are set to the same or related numbers, and when the call is received in the cordless telephone mode. If the handset 20 is out of the communicable range of the base unit 1A, the base unit 1A notifies the base station 30 that the handset 20 is out of the communicable range. Calls the handset 20 in the public mode, so that a call can be made even when the handset 20 is out of the communicable range of the base unit 1A when receiving a call in the cordless telephone mode.

[0027]

As described above, according to the personal handyphone system of the present invention, when the slave unit is out of the communicable range of the master unit when receiving a call in the cordless telephone mode, the master unit transmits to the base station. The base station notifies that the slave unit is out of the communication range, and the base station that has received the notification can call the slave unit in the public mode, so that the slave unit is out of the call range in the cordless telephone mode. Even when there is an incoming call to the master unit, the base station can call the slave unit in the public mode, and the advantageous effect that the call can be made is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a personal handyphone system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a conventional personal handyphone system.

[Explanation of symbols]

 1A Master unit 2,23 Key input unit 3,22 Microphone 4,21 Speaker 5 Wired telephone line 6 Line interface unit 7,25 Audio processing unit 8a Control unit 9 Wireless unit 10,27,31 Antenna 20 Slave unit 24 Slave unit control Unit 26 slave unit radio unit 30 base station 32 PHS transmission / reception unit 33 base station control unit 34 base station switch

Claims (1)

[Claims] 1. A personal handyphone system comprising a master unit, a slave unit, and a base station, wherein the master unit controls a line interface unit for interconnecting with a wired telephone line, and controls the whole. When the slave unit is out of the communicable range in the cordless telephone mode, a control unit that notifies the base station to that effect and calls the slave unit to the base station,
A control unit that receives a high-frequency signal from the slave unit, reproduces a control signal and an audio signal, and has a radio unit that modulates the audio signal and transmits the modulated signal as a high-frequency signal to the slave unit and the base station. The slave unit receives a high-frequency signal from the master unit and a high-frequency signal from the base station, and reproduces a control signal and an audio signal. A personal handy phone system comprising: a radio unit for transmitting to the base station; and a radio control unit for controlling the whole.