JP2735051B2 - Wireless telephone device and wireless telephone system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone apparatus having a mode for communicating with a base unit of a cordless telephone and a mode for communicating with a base station of a radio telephone service network.

[0002]

2. Description of the Related Art The configuration of a conventional wireless telephone device will be described below with reference to the drawings.

FIG. 3 is a block diagram showing a configuration of a conventional wireless telephone device. Reference numeral 301 denotes an operation unit including push buttons for inputting a telephone number and buttons and switches having other functions; 302, a reception voice processing unit that controls a reception voice signal; and 303, transmission voice that controls a transmission voice signal. A processing unit 304 is an antenna unit that transmits and receives radio waves to and from a base unit (not shown) of the cordless telephone or a base station (not shown) of the cellular telephone network which is one of wireless telephone service networks, and 305 is a wireless telephone device A cordless radio unit for controlling signal processing when the wireless communication system is used in a cordless mode;
Reference numeral 6 denotes a cellular radio unit for controlling signal processing when connected to a radio telephone service network (not shown) such as a cellular telephone. Reference numeral 307 exchanges an ID code with a base unit and receives the received code from the base unit. A wireless communication detecting unit 308 for detecting whether or not the wireless telephone device is within a usable range in the cordless mode by measuring the electric field strength of the radio wave, and 308 displays a result detected by the wireless communication detecting unit 307. A display unit 309 is a control unit that supplies and controls power to the above units.

[0004] The operation of the conventional wireless telephone device configured as described above will be described below. First, when the wireless telephone device is used in the cordless mode, when the cordless telephone mode is selected by the operation unit 301 of the slave unit,
The control unit 309 causes the cordless wireless unit 305 to perform a calling procedure, and the cordless wireless unit 305 issues a command to the master unit to transmit a call request signal in the cordless mode via the antenna unit 304. Next, the cordless radio section 305 measures the electric field strength of the response radio wave from the master unit received from the antenna section 304, and determines whether or not the wireless communication detection section 307 is in a range where communication in the cordless mode is possible. do. As a result, when it is determined that communication in the cordless mode is possible, “cordless communication is possible” is displayed on the display unit 308, and the control unit 309 performs a calling process through the cordless wireless unit 305. Thereafter, when the user holding the slave unit moves away from the master unit during a call in the cordless mode, the electric field strength of the signal received by the cordless wireless unit 305 gradually weakens, and the wireless communication detection unit 307 finally sets the cordless state. If it is determined that the wireless communication is out of the range where the wireless communication of the telephone is possible, “cordless communication impossible” is displayed on the display unit 308, and the control unit 309 performs a disconnection process through the cordless wireless unit 305.

[0005]

However, in the above prior art, a mode for communicating with a base unit of a cordless telephone (hereinafter, a first mode) and a mode for communicating with a base station of a wireless telephone service network (hereinafter, a first mode). 2 mode) is manually performed. Therefore, when the first mode is set, the call is made in the second mode even if a call in the first mode with a low call charge is possible. I will. If it is not known whether or not a call can be made in the first mode, after manually switching to the first mode, a call is made once and it is determined whether or not connection with the base unit of the cordless telephone is possible. I had to check that it was troublesome.

SUMMARY OF THE INVENTION In view of the above problems, the present invention reliably determines whether or not a call can be made with a base unit of a cordless telephone, and if a call can be made, automatically, even if the second mode is set. It is an object to provide a wireless telephone device for making a connection to a first mode.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention provides a first method for making a call with a base unit of a cordless telephone.
And a second mode for making a call with a base station of a wireless telephone service network, wherein the receiving unit receives a radio wave coming from a base unit of the cordless telephone,
The second mode is used when the receiving unit determines that it is possible to talk with the base unit based on the detection result of the wireless communication detecting unit that detects the movement of the electric field strength of the radio wave received from the base unit. And a control unit for controlling the connection in the first mode, and it is possible to reliably determine whether or not a call with the base unit of the cordless telephone is possible and to make a call. Then, even if the second mode for making a call with the base station is set, the connection wireless telephone device in the first mode can be automatically provided.

According to a first aspect of the present invention, there is provided a wireless telephone apparatus having a first mode for talking with a base unit of a cordless telephone and a second mode for talking with a base station of a wireless telephone service network. A receiving unit for receiving a radio wave coming from the base unit of the cordless telephone, a wireless communication detecting unit for detecting a change in the electric field strength of the radio wave from the base unit received by the receiving unit, and detecting the wireless communication detecting unit If it is determined from the result that it is possible to communicate with the master unit, a control unit that controls connection in the first mode even in the second mode is provided. This has the effect that it is possible to reliably determine whether or not a call can be made with the base unit of the cordless telephone based on the movement of the electric field strength of the radio wave coming from the base unit of the telephone.

According to a second aspect of the present invention, there is provided a cordless telephone having a base station, a wireless telephone apparatus having a first mode for talking with the base station and a second mode for talking with a base station. A wireless telephone device, a receiving unit that receives a radio wave arriving from the base unit of the cordless telephone, a wireless communication detecting unit that detects a movement of the electric field strength of the radio wave from the base unit of the cordless telephone received by the receiving unit, A control unit for controlling connection in the first mode even in the second mode when it is determined from the detection result of the wireless communication detection unit that it is possible to talk with the base unit of the cordless telephone. It has the effect of being able to reliably determine whether or not it is possible to talk with the base unit of the cordless telephone based on the movement of the electric field strength of the radio wave coming from the base unit of the cordless telephone. .

According to a third aspect of the present invention, there is provided a cordless telephone base unit, a base station of a wireless telephone service network,
A wireless telephone device having a first mode for talking with the base unit and a second mode for talking with the base station, wherein the wireless telephone unit receives a radio wave coming from the base unit of the cordless telephone And a wireless communication detection unit that detects the movement of the electric field strength of the radio wave from the base unit of the cordless telephone received by the reception unit, and that it is possible to talk with the base unit of the cordless telephone based on the detection result of the wireless communication detection unit. If it is determined, the control unit controls the connection in the first mode even in the second mode, and the control unit controls the connection in the first mode. This has the effect that it is possible to reliably determine whether or not a call can be made with the base unit of the cordless telephone by the movement.

[0011]

[0012]

[0013]

[0014]

[0015]

(Embodiment 1) Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment according to the present invention. 101 is an operation unit including a push button for inputting a telephone number and a switch having other functions, 102 is a reception voice processing unit for controlling a reception voice signal, and 103 is a transmission voice processing unit for controlling a transmission voice signal. , 104, an antenna unit for transmitting and receiving radio waves to and from a base unit of a cordless telephone or a base station of a cellular telephone which is one of wireless telephone service networks;
Reference numeral 05 denotes a cordless wireless unit that controls processing of transmission / reception signals when the wireless telephone device is used in a cordless mode.
Reference numeral 6 denotes a cellular radio unit for exchanging ID codes with the base unit when the radio telephone device is connected to a radio telephone service network such as a cellular telephone, and for processing transmission / reception signals. By measuring the electric field strength of the received radio wave, it is detected whether or not the wireless telephone device is within a usable range in the cordless mode, and a change in the electric field strength near a predetermined electric field strength value is detected. A wireless communication detection unit that calculates a differential value of the wireless communication device; a display unit that displays a result of the availability in the cordless mode detected by the wireless communication detection unit 107; and a wireless communication device that uses the wireless telephone device in the cellular mode. A telephone number storage unit 110 for storing a telephone number communicates with the parent device in a cordless mode based on the differential value calculated by the wireless communication detection unit 107. Automatic call unit for performing or perform necessary procedures, the procedures necessary for communication in a cellular mode to a base station, 111 also wireless communication detector 107
Based on the differential value calculated by the above, the procedure required to cut off the communication in the cordless mode for the base unit or the procedure necessary for cutting off the communication as a cellular phone to the base station Automatic end unit that performs
A control unit 12 controls the operation of each unit.

The operation of the wireless telephone device configured as described above will be described below in detail with reference to FIGS.

FIG. 2 is a diagram showing the relationship between the linear distance between the master unit and the slave unit and the electric field strength at the time of receiving the radio wave transmitted by the master unit. In FIG. 2, the area A is a section using only the function as a cordless telephone, the area C is a section using both the functions of the cordless telephone and the cellular telephone, and the area E is a section using only the function as the cellular telephone. is there.
Point B is a boundary point between the A region and the C region, and point D is a boundary point between the C region and the E region.

In the wireless telephone device according to the present embodiment, the activation and connection of both the cordless mode and the cellular mode are performed when the wireless telephone device moves away from the base unit and when the wireless telephone device is connected to the base unit. It is possible that it is approaching. First, a case will be described in which the wireless telephone device is in the area A and the user gradually moves away from the base unit while communicating in the cordless mode. When the user sets the use mode to the cordless mode using the operation unit 101, the control unit 112 sends a signal for starting the communication in the cordless mode to the cordless wireless unit 105, and the cordless wireless unit 105 sends the cordless wireless mode to the master unit in the cordless mode. The call request signal is transmitted as a radio wave by the antenna unit 104.
The response signal transmitted from the master unit is received from antenna section 104, and its electric field strength is transmitted to cordless radio section 105.
Measure. When the wireless communication detection unit 107 determines from the measurement result that the communication is in the range in which communication in the cordless mode is possible, the display unit 108 displays “cordless communication is possible” and the control unit 112 performs a calling process.

Thereafter, when the user moves and moves away from the base unit during a call in the cordless mode, the electric field strength of the signal received by cordless radio section 105 gradually weakens, and radio communication detecting section 107 reduces the electric field strength. When the point B is reached, the change in the electric field intensity near the point B is differentiated. Automatic calling unit 1
When the differential value output from the wireless communication detection unit 107 is negative, the mobile unit 10 detects that the slave unit is moving in a direction away from the master unit, and instructs the control unit 112 to perform a communication procedure in the cellular mode. And a telephone number in the cellular mode of the slave unit itself in the telephone number storage unit 109.
And output. At this time, a message indicating that the cellular mode is used together with the cordless mode is displayed on the display unit 108. The control unit 112 issues a command to the cellular radio unit 106 to take a procedure for activating the cellular mode, and the cellular radio unit 10
6 transmits a signal to activate the cellular mode to the base station via the antenna unit 104. At this time, since the communication in the cordless mode has been started as it is, the communication in the cordless mode and the communication in the cellular mode are both used.

If the electric field strength of the signal to be received is further reduced when the electric field strength reaches point D, the radio communication detecting section 107 causes the electric field strength near point D to continue moving in the area C away from the master unit. Differentiate the change of. Automatic call termination section 11
When the differential value output from the wireless communication detecting unit 107 is negative, the wireless communication detecting unit 107 detects that the wireless communication device is moving in a direction away from the parent device, and instructs the control unit 112 to disconnect the communication in the cordless mode. The signal of is output. At this time, the display unit 108 displays a message indicating that the cellular mode is activated. The control unit 112 issues a command to the cordless wireless unit 105 to disconnect the communication in the cordless mode, and the cordless wireless unit 105 transmits a signal to disconnect the cordless mode to the parent device via the antenna unit 104.

When the user further moves away from the master unit and enters the area E, it is possible to make a call only in the cellular mode.

Next, consider a case in which the user is gradually approaching the base unit while performing communication in the cellular mode in the area E. At the time of use, even if the user first sets the use mode to the cordless mode using the operation unit 101, the cordless mode start-up procedure is performed by detecting that the response signal transmitted from the master unit is in the E area and detecting the presence of the response signal. I can't. At the same time, the display unit 108
Displays a message indicating that communication in the cordless mode is impossible.

When the user sets the use mode to the cellular mode using the operation unit 101, the control unit 112 issues a command to the cellular radio unit 106 to start the cellular mode, and the cellular radio unit 106 instructs the base station. The call request signal in the cellular mode to the antenna unit 1
The signal is transmitted as a radio wave via the terminal 04. At this time, the display unit 1
At 08, a message indicating that communication is being performed in the cellular mode is displayed, and the control unit 112 performs a calling process.

Thereafter, when the user moves and approaches the base unit during a call in the cellular mode, the electric field strength of the signal received by cordless radio section 105 gradually increases, and radio communication detection section 107 reduces the electric field strength. When the point D is reached, the change in the electric field intensity near the point D is differentiated. Automatic calling unit 1
When the differential value output from the wireless communication detection unit 107 is positive, the wireless communication detection unit 10 should detect that the mobile terminal is moving in a direction approaching the base unit and take a communication procedure in the cordless mode to the control unit 112. A signal to the effect is output. At this time, a message indicating that the cellular mode is used together with the cordless mode is displayed on the display unit 108. The control unit 112 issues a command to the cordless wireless unit 105 to activate the cordless mode, and the cordless wireless unit 105 transmits a call request signal in the cordless mode to the base unit as a radio wave via the antenna unit 104. . At this time, since the communication in the cellular mode has been started as it is, the communication in the cordless mode and the communication in the cellular mode are used together.

If the electric field intensity of the received signal continues to increase as the electric field intensity reaches point B, the radio communication detecting section 107 sets the electric field intensity in the vicinity of point B as the electric field intensity reaches point B. Differentiate the change of. Automatic end unit 111
When the differential value output by the wireless communication detection unit 107 is positive, the wireless communication detection unit 107 detects that the mobile terminal is moving in the direction approaching the base unit, and instructs the control unit 112 to cut off communication in the cellular mode. Output a signal. At this time, the display unit 10
8, a message indicating that the cordless mode has been activated is displayed. The control unit 112 issues a command to the cellular radio unit 106 to cut off communication in the cellular mode, and the cellular radio unit 106 sends a signal to the base station to cut off communication in the cellular mode to the antenna unit 1.
04 to the base station.

Thus, when the user further approaches the master unit and enters the area A, it is possible to perform a call only in the cordless mode.

On the other hand, as another embodiment, the automatic calling unit 11
A case will be described in which timers are configured for 0 and the automatic end unit 111, respectively. First, consider a case where the wireless telephone device is in the area A and the user gradually moves away from the base unit while using the function as a cordless telephone. A in FIG.
The procedure in which the user makes a call request in the cordless mode in the area is the same as in the above-described embodiment.

Thereafter, when the user moves and moves away from the base unit during a call in the cordless mode, the electric field strength of the signal received by the cordless radio unit 105 gradually decreases,
When the wireless communication detection unit 107 determines that the electric field strength has reached point B,
Differentiate the change in the electric field strength near the point. When the differential value output from the wireless communication detecting unit 107 is negative, the automatic calling unit 110 detects that the mobile unit is moving away from the parent device and communicates with the control unit 112 in a cordless mode. Extracts the signal indicating that the communication procedure in the cellular mode should be taken as it is and the telephone number of the wireless telephone itself in the cellular mode from the telephone number storage unit 109 and outputs them. At this time, the display unit 108
A message indicating that the cellular mode is used together with the cordless mode is displayed. At the same time, the timer of the automatic end unit 111 is operated. Control unit 112
Issues a command to the cellular radio section 106 to activate the cellular mode, and the cellular radio section 106 transmits a signal to activate the cellular mode to the base station via the antenna section 104.

If the slave continues to move in the direction away from the master in the area C, the electric field strength of the received signal further decreases, and the electric field strength of the received signal reaches the point D or the automatic call termination unit 111 A procedure for disconnecting the cellular mode is taken at the earlier of which the started timer is expired in the above.

That is, when the electric field strength reaches the point D, the wireless communication detection unit 107 differentiates the change in the electric field strength near the point D. The automatic call termination unit 111 includes a wireless communication detection unit 107
If the differential value output by the is negative, it detects that it is moving in a direction away from the parent device, and outputs a signal to the control unit 112 to disconnect the communication in the cordless mode. If the timer started in the automatic end unit 111 before the electric field intensity reaches the point D ends, the user enters the area C once but waits for a while until the electric field intensity reaches the position where the point D is reached. A signal is sent to the control unit 112 so as to take the procedure of disconnecting the cellular mode communication in advance upon determining that it is necessary. At this time, the display unit 108
Displays a message indicating that the cellular mode is activated. The control unit 112 issues a command to the cordless wireless unit 105 to disconnect the communication in the cordless mode, and the cordless wireless unit 105 transmits a signal to disconnect the cordless mode to the parent device via the antenna unit 104.

As described above, when the user further moves away from the master unit and enters the area E, a call is made only in the cellular mode.

Next, consider a case where the wireless telephone device is located in the area E and the user gradually approaches the base unit while using the function as a cellular telephone. The procedure in which the user makes a call request in the cellular mode in the area E in FIG. 2 is the same as in the above-described embodiment.

Thereafter, when the user moves and approaches the base unit during a call in the cellular mode, the electric field strength of the signal received by cordless radio section 105 gradually increases, and radio communication detection section 107 reduces the electric field strength. When the point D is reached, the change in the electric field intensity near the point D is differentiated. Automatic calling unit 1
When the differential value output from the wireless communication detection unit 107 is positive, the wireless communication unit 10 detects that the slave unit is moving in a direction approaching the master unit, and communicates with the control unit 112 in the cellular mode. A signal indicating that the communication procedure in the cordless mode should be taken as it is is output. At this time, a message indicating that the cellular mode is used together with the cordless mode is displayed on the display unit 108. At the same time, the timer of the automatic end unit 111 is operated. The control unit 112 issues a command to the cordless wireless unit 105 to take a procedure to activate the cordless mode, and the cordless wireless unit 105 transmits a signal to activate the cordless mode to the master unit via the antenna unit 104. .

If the user continues to move the area C in a direction approaching the master unit, the electric field strength of the received signal further increases, and the electric field strength of the received signal reaches the point B or the automatic end unit 111 A procedure for disconnecting the cellular mode is taken at the earlier of the timer which has been started or whichever expires.

That is, when the electric field strength reaches the point B, the wireless communication detecting section 107 differentiates the change in the electric field strength near the point B. The automatic call termination unit 111 includes a wireless communication detection unit 107
If the differential value output by the is positive, it detects that the slave unit is moving in the direction approaching the master unit, and outputs a signal to the control unit 112 to cut off communication in the cellular mode. . If the timer started in the automatic end unit 111 before the electric field intensity reaches the point B ends, the timer enters the area C once, but it takes some time until the electric field intensity reaches the position at the point B. A signal is sent to the control unit 112 so as to take the procedure of disconnecting the cellular mode communication in advance upon determining that it is necessary. At this time, the display unit 108
Displays a message indicating that the cordless mode has been activated. The control unit 112 issues a command to the cellular radio unit 106 to cut off communication in the cellular mode, and the cellular radio unit 106 transmits a signal to cut off the cellular mode to the master unit via the antenna unit 104.

When the slave unit further approaches the master unit and enters the area A, the slave unit can perform a call only in the cordless mode.

[0038]

According to the present invention, there is provided a wireless telephone apparatus having a first mode for making a call with a base unit of a cordless telephone and a second mode for making a call with a base station of a wireless telephone service network. Receiving unit for receiving radio waves arriving from the base unit, a wireless communication detecting unit for detecting the movement of the electric field strength of the radio wave from the base unit received by the receiving unit, and talking with the base unit based on the detection result of the wireless communication detecting unit. And a controller for controlling connection in the first mode even in the second mode when it is determined that the connection is possible from the base station of the cordless telephone. In order to reliably determine whether or not a call can be made with the base unit of the cordless telephone based on the movement of the electric field strength of the received radio wave, it is possible to preferentially connect the first mode with a lower charge without fail. .

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a relationship between a linear distance between a master unit and a slave unit and an electric field intensity at the time of receiving a radio wave transmitted by the master unit.

FIG. 3 is a block diagram showing a configuration of a conventional wireless telephone device.

[Explanation of symbols]

 Reference Signs List 101 operation unit 102 reception voice processing unit 103 transmission voice processing unit 104 antenna unit 105 cordless radio unit 106 cellular radio unit 107 wireless communication detection unit 108 display unit 109 telephone number storage unit 110 automatic calling unit 111 automatic termination unit

Claims (3)

(57) [Claims] 1. A first system for talking with a base unit of a cordless telephone.
And a second mode for making a call with a base station of a wireless telephone service network, wherein the receiving unit receives a radio wave coming from a base unit of the cordless telephone, and the receiving unit receives the radio wave. A wireless communication detection unit that detects a change in the electric field intensity of a radio wave from the base unit; and, if it is determined that a call with the base unit is possible based on a detection result of the wireless communication detection unit, even in the second mode. First
And a control unit for controlling connection in the mode. 2. A base unit of a cordless telephone, a wireless telephone device having a first mode for talking with the master device and a second mode for talking with the base station, wherein the wireless telephone device comprises: A receiving unit that receives a radio wave arriving from the base unit of the cordless telephone; a wireless communication detection unit that detects a change in the electric field strength of a radio wave from the base unit of the cordless telephone received by the receiving unit; If it is determined from the detection result of the section that it is possible to talk with the base unit of the cordless telephone, the second
And a control unit for controlling connection in the first mode even in the first mode. 3. A wireless telephone device having a base unit of a cordless telephone, a base station of a wireless telephone service network, a first mode for talking with the base unit, and a second mode for talking with the base station. The wireless telephone device comprises: a receiving unit that receives a radio wave arriving from the base unit of the cordless telephone; and a detection unit that detects the movement of the electric field intensity of the radio wave from the base unit of the cordless telephone received by the receiving unit. A wireless communication detecting unit, when it is determined from the detection result of the wireless communication detecting unit that it is possible to talk with the base unit of the cordless telephone,
And a control unit for controlling connection in the first mode even in the first mode.