JPH10271558A - Portable communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily perform a call origination operation without performing a troublesome operation by automatically selecting one of a public communication function and a transceiver function by the connection number of another communication equipment to be a connecting party. SOLUTION: A mode switching part 12 switches the frequency of radio signals outputted from a radio part 14 or the like matched with the using mode of a PHS main body 1A selected by the mode selection button of an operation part 11 and an automatic mode switch 15. A control part 13 transmits dial signals to the radio part 14 based on connection number information and the control part 13 controls the mode switching part 12 based on the using mode selected by the mode selection button or the automatic mode switch. Since the public communication function or the transceiver function is automatically selected based on the inputted connection number information at the time of a portable mode and a household mode is automatically selected within a range capable of using a cordless communication function, this portable communication equipment is highly convenient for the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication device having a public communication function and a transceiver function in one device, and more particularly to a portable cordless communication device and a public portable communication device in one device. The present invention is suitably applied to a portable communication device that can be used for both.

[0002]

2. Description of the Related Art In recent years, PHS (Personal Handy Phone System) has become widespread as a second generation cordless telephone. This PHS enables a cordless telephone handset for home use to be used outdoors.

[0003] That is, in a home, a portable communication terminal (hereinafter referred to as a PHS body) used for a PHS is
It is possible to use a cordless telephone as a cordless telephone, that is, a cordless telephone (hereinafter simply referred to as a cordless telephone). In addition, the PHS body
Within the area of a wireless communication base station installed outdoors or in an underground shopping mall, it can be used as a wireless communication terminal of a public network independent of the base unit (hereinafter simply referred to as a mobile phone). Has become. Also, usually PHS
The main units have a so-called transceiver function that allows the PHS main units that share the main unit to directly communicate with each other without passing through the main unit and the public line network.

[0004] When a user uses the PHS main body, various conditions such as usable environment and usage fee differ depending on the mode of use (mode). That is, PHS
When the main unit is used as a slave unit, it can be used only within the range of radio waves of the base unit, and the usage fee is the same as a normal wired telephone. When the PHS body is used as a mobile phone, it can be used in the area of a wireless communication base station installed in various places such as outdoors and underground shopping malls. Note that high-speed mobile communication is not possible, but handover of a plurality of wireless communication base stations is possible if the vehicle is moving at a low speed on foot. Because of this high convenience, the usage fee is higher than that of a wired telephone. When the PHS main units are used as transceivers, the PHS main units can be used under the condition that the PHS main units are located at a short distance within about 100 m and there is no obstacle between them. In this case, the public network is not used at all, so the usage fee is free.

When calling another communication device, that is, when making a call, the PHS main unit determines whether the PHS main unit is used as a cordless telephone handset, a portable telephone, or a transceiver. Is provided with a mode changeover switch for selecting. As a result, the user can appropriately select a less expensive use mode according to the environment in which the PHS body is used.

The PHS main unit is adapted to respond to a call from another communication device if the power is turned on. However, if the mode is fixed, the PHS main unit is switched to another mode.
The HS itself cannot be called. Therefore, PH
The S body is set for home use in an automatic mode in which the home mode and the transceiver mode can be simultaneously awaited. In addition, the PHS main unit is set to an automatic mode for outdoor use so that the public mode and the transceiver mode can be simultaneously standby.

Conventionally, P having the above-described functions
An HS type portable communication device is disclosed in Japanese Patent Application Laid-Open No. 8-228384 (hereinafter referred to as a first prior art) and Japanese Patent Application Laid-Open No.
No. 89 (hereinafter, referred to as a second prior art).

[0008] The PHS main body 101 of the first prior art is charged by being stored in a charger 102 as shown in FIG. The PHS body 101 has a PHS body 1
A mode changeover switch 103 for selecting the mode No. 01 is provided. And the PHS body 101
Can be used in home mode, public mode, and transceiver mode. A mode switch 104 for selecting a mode of the PHS main body 101 is provided on the outer surface of the charger 102.

[0009] Then, the PHS body 101 is
When charging is performed, the mode change signal 105 instructing the PHS main body 101 to change the mode is transmitted from the charger 102. That is, the PHS body 1
When 01 is stored in the charger 102, the mode is automatically switched to the mode selected by the mode switch 104. The mode selected by the mode switch 104 is the mode selected by the PHS main unit 10.
1 is visible even when stored in the charger 102.

[0010] With such a configuration, the user can control the PH.
The S body 101 can be used according to the purpose. For example, it is assumed that the user always sets the mode changeover switch 104 of the charger 102 to the home mode in order to use the PHS main unit 101 as a cordless phone subunit. Then, the user returns home from outdoors and
When the HS main unit 101 is stored in the charger 102, the PHS main unit 101 automatically enters the home mode. by this,
Although the PHS main body 101 can be used as a cordless telephone, the user does not inadvertently make a telephone call in the public mode where the telephone charge is high.

Also, for example, the PHS body 10
It is assumed that a call is going to be made to one public line number. At this time, it is assumed that the electric power remaining in the PHS main body 101 is extremely small and charging is required. In such a case, if the mode switch 104 of the charger 102 is set to the public mode, the PHS main body 101 can wait for a call while being charged.

A second prior art PHS body 111 is also provided.
As shown in FIG. 9, the mode change switch 11
2, a correspondence table 113 storing a transceiver number assigned to another slave unit having a common base unit and a public line number in association with each other, and detecting whether a communication device to be connected is called. And a detection unit 114. Also, the PHS main unit 111 and the other slave units, which share the master unit, are respectively provided with extension numbers used when communicating in the home mode.

When calling another slave unit using the PHS main unit 111, it is called with an extension number via the master unit using the home mode, and is assigned to another slave unit using the public mode. The user can call one of the three methods of calling with the public line number or calling with the transceiver number assigned to the other slave unit using the transceiver mode. A mode is selected and operated by operating the button 112.

[0014] However, the mode selected by the user may not be optimal in view of various conditions. For example, the user attempts to use the transceiver mode to call another handset, but the other handset is remote, or the other handset is not in transceiver mode, and in transceiver mode, In some cases, other child units cannot be called. Further, for example, when there is another handset in the vicinity of the PHS main unit 111, if the user calls in the public mode, the call is not required in the public mode, although the call can be made in the transceiver mode.

[0015] Therefore, when the other handset cannot be called in the transceiver mode, the PHS main unit 111 detects that the other handset cannot be called by the detection unit 114, and switches the mode changeover switch 112 to the public mode to switch the other handset. Is called again with the public line number, or the user is notified that another handset could not be called in the transceiver mode. This allows the user to select an optimal mode according to the situation.

When calling another communication device using the public mode, the PHS main unit 111 checks whether the operated public line number is the public line number of another slave unit stored in the correspondence table 113. Search for. If the result of the search is a public line number of another slave unit, the mode switching switch 112 can be switched to the transceiver mode and called again in the transceiver mode, or the user can be called in the transceiver mode. Is notified. This allows the user to select an economic mode.

[0017]

SUMMARY OF THE INVENTION As described above, the first
In the prior art, the mode selection switch 1 of the charger 102 is
04 to force the PHS main unit 10
1 is switched. Also, the second
In the related art, there is provided a function of forcibly selecting a mode from among a plurality of modes according to a connection partner, a use environment, or the like, or notifying a user of an optimal mode.

However, the PHS bodies 101 and 111
Then, when the PHS main units 101 and 111 are used outdoors as a portable communication device for transmission, the mode changeover switches 103 and 112 must be once set to the public mode to perform the transmission operation. Therefore, there arises a problem that the user forgets to switch to the automatic mode when the user forgets to switch the mode during the transmission operation or when the user disconnects the communication and returns to the standby state. Further, even if the user surely performs the mode switching operation of the PHS main bodies 101 and 111, the mode switching operation itself is troublesome.

The present invention has been made in consideration of the above-described problems, and has
The object of the present invention is to provide a portable communication device such as a portable communication device such as S that allows the user to smoothly perform a calling operation without a troublesome operation when the main body is in a standby state in the automatic mode. And

[0020]

In view of the above-mentioned object,
A portable communication device according to claim 1 of the present invention has a cordless communication function used as a child device of a predetermined parent device, a public communication function used as a portable terminal device of a public line network independent of the parent device, A portable communication device having a transceiver function capable of directly communicating between a plurality of slave devices without passing through a master device, and a portable mode in which a public communication function and a transceiver function are simultaneously in a standby state. When inputting the connection number of another communication device to be connected with in the above, it is possible to automatically select and use either the public communication function or the transceiver function according to the connection number to call another communication device. It has become.

Further, the portable communication device according to claim 2 is
In addition to the invention described in claim 1, an automatic mode is configured by a portable mode and a home mode in which a cordless communication function can be used, and other communication is automatically performed in the home mode as long as the cordless communication function can be used. The device is to be called. Further, the portable communication device according to claim 3 has a public communication function used as a portable terminal of a public line network, a transceiver function capable of directly communicating between portable terminals, and a public communication function and a transceiver function. In the portable communication device having the portable mode in which the communication mode is set to the standby mode at the same time, when the connection number of another communication device to be connected in the portable mode is input, either the public communication function or the transceiver function is performed depending on the connection number. It is automatically selected and used to call another communication device.

According to the first and third aspects of the present invention, when a connection number of another communication device is input in the portable mode, either the public communication function or the transceiver function is automatically selected from the connection number. The PHS main body is connected in a mode corresponding to another communication device simply by operating the connection number without the user performing the mode switching operation. Further, according to the second aspect of the present invention, the home mode is automatically selected within a range where the cordless communication function can be used, so that the user can perform the mode switching operation in the home. Instead, it is possible to transmit in the home mode, which is generally less expensive than the public mode.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A portable communication device according to an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the portable communication device will be described as a telephone device used for a PHS.

As shown in FIG. 1, a PHS main unit 1A as a portable communication device used for the PHS includes an operation unit 11 for performing various operations, and a PHS main unit 1A according to a situation, a home mode X and a public mode. Mode switching unit 12 for switching to any of mode Y and transceiver mode Z
A control unit 13 for controlling various operations of the PHS main unit 1A, a wireless unit 14 for performing wireless connection with another communication device and the like, and an automatic mode switch 15 for automatically selecting a use mode. , Is provided.

On the other hand, as shown in FIG. 2, a base unit 3 of a wired telephone set at home is connected to the public line network 2 accessed using the various modes of the PHS main unit 1 described above. Further, a wired telephone 3a having no handset is connected to the public line network 2. Further, the public line network 2 includes a wireless communication base station 4 for a PHS portable terminal,
The wireless communication base station 4a for the portable communication device 5 other than S is also connected. Further, a mobile communication system control device 6 is connected to the public network 2 so that a line usage fee is charged in accordance with the usage status of each terminal.

Each communication device connected to the public line network 2, that is, a wired telephone, a portable telephone, a facsimile, or the like, is provided with a connection number. It is possible to connect from a communication device. In the PHS, when a portable communication device such as the PHS main unit 1A is connected to another communication device, a first connection number is excluded except for a special connection number such as a police station “110”, a fire station “119”, and a weather forecast “177”. Is input from "0".

As shown in FIG. 3, the operation unit 11 of the PHS main unit 1A includes an operation button 11a provided on a front portion of the PHS main unit 1A, an operation screen 11b, a mode selection button 11c, and an automatic mode switch input button. 11d. The operation button 11a is used to input an operation such as a connection number of another communication device to be connected, or to input a PH.
When the S body 1A is used as an extension telephone, this is for inputting operation to use as an extension.

The mode selection button 11c is
This is for the user to manually set the use mode of the main body 1A to one of the home mode X, the public mode Y, and the transceiver mode Z. The automatic mode switch input button 11d is
To turn on. Also, the operation screen 11b
Is a screen that displays the content of the operation performed on the operation unit 11. The operation screen 11b may be configured to function as the operation button unit 11a, the mode selection button 11c, and the automatic mode switch input button 11d by directly touching the surface with a finger.

The mode switching unit 12 adjusts the use mode of the PHS body 1A selected by the mode selection button 11c of the operation unit 11 or the automatic mode switch 15
This is for switching the frequency and the like of the radio signal output from the radio unit 14. The control unit 13 has a function of transmitting a dial signal to the wireless unit 14 based on the connection number information. The control unit 13 controls the mode switching unit 12 by transmitting a mode switching command signal to the mode switching unit 12 based on the use mode selected by the mode selection button 11c or the automatic mode switch input button 11d.

The control unit 13 operates the operation button 11a of the operation unit 11 at the time of a portable mode position 15b described later.
Has a function of detecting the input connection number and transmitting a use mode signal to the mode switching unit 12 based on the connection number information. The control unit 13 further includes a wireless unit 14
And the transmission and reception of wireless signals.

Further, the radio unit 14 is in charge of wireless communication with the base unit 3, the wired telephone 3a, and other communication devices such as the portable communication unit 5, and modulates call data and the like by a modulation system conforming to the PHS communication system. Or, conversely, demodulate data modulated by the modulation method.

As shown in FIG. 4, the automatic mode switch 15 includes a home mode position 15a for transmitting and receiving the PHS main body 1A in the home mode X in the home, and a public mode Y and a home mode Y in the outdoors. It is formed of two positions, a portable mode position 15b, which can be used for transmission and reception in both the transceiver mode Z. And the automatic mode switch 1
When the PHS main unit 1 is turned on and a radio signal from the base unit 3 described later is input to the radio unit 14, the PHS main unit 1
A automatically becomes the home mode position 15a. Further, in a state where a radio signal is not input from the base unit 3 to the radio unit 14, the PHS main unit 1A automatically enters the portable mode position 15b.

When a connection number input operation is performed with the operation button 11a of the PHS main body 1A in the portable mode 15b, the control unit 13 detects the connection number information, and
It is determined whether this connection number is for the public line network 2 or for the transceiver. When the connection number is for the public line network 2, the mode switching unit 12 sets the public mode Y. If the connection number is for a transceiver, the mode switching unit 12 sets the mode to the transceiver mode Z.

More specifically, as shown in FIG. 5, when the first digit of the connection number input with the operation button 11a is "0", the connection number of the communication device registered in the public telephone network 2 , And the mode switching unit 12 sets the public mode Y. It should be noted that usually, a master unit 3 described later is used.
The transceiver number assigned to the slave unit with
A number is set such that a number other than “0” is the first digit. Therefore, when “0” is input as the first digit, the control unit 13 can determine that the input connection number is not a transceiver number.

When the first digit input by the operation button 11a is "1", the first digit alone is not a connection number of a normal communication device registered in the public line network 2. Can be determined, but it cannot be determined whether a special connection number such as a police station "110", a fire station "119", or a weather forecast "177" is input, or a transceiver number of a child device having a common parent device. . Therefore, the control unit 13 waits for a predetermined time whether there is a number input after the first input “1”, that is, the second digit. If the first digit “1” is input and the specified number is not input after waiting for a predetermined time, a special connection such as a police station “110”, a fire station “119”, or a weather forecast “177” is performed. It is determined that the number is not a number, and the mode switching unit 12 is set to be the transceiver mode Z.

On the other hand, if the first digit "1" is input and the predetermined number of digits is input after waiting for a predetermined time, the control unit 13 inputs the number following the second digit, that is, the third digit. The system waits for a predetermined time to determine whether there is a number.
Then, after the second digit number is input and after waiting for a predetermined time,
If the third digit is not entered, enter the police station "110"
It is determined that the connection number is not a special connection number such as the fire station “119” or the weather forecast “177”, and the mode switching unit 12 is set to be the transceiver mode Z.

Also, "1" is input in the first digit,
When the third digit is input after the second digit is input, the control unit 13 searches whether the input three-digit number is a special connection number. That is, the control unit 1
3, a special connection number such as a police station "110", a fire station "119", or a weather forecast "177" is stored in advance. When the input three-digit number matches a special connection number stored in advance, the mode switching unit 12 is set to be in the public mode Y. If the input three-digit number does not match the special connection number, the mode switching unit 12 is set to be in the transceiver mode Z.

Further, when the first digit of the connection number input with the operation button 11a is other than "0" and "1", the connection number of a normal communication device registered in the public line network 2 or the special It is determined that the connection number is not a proper connection number, and the mode switching unit 12 is set to be in the transceiver mode Z.

In this embodiment, the control unit 13 is set to be in the standby state after the first one digit "1" is input and the second digit number is input. When the digit of the digit is entered, the second digit is "2"
In the case of a number that does not become a special connection number, such as "3" or "3", the control unit 13 is not set to the standby state and the mode switching unit 12
May be set to be in the transceiver mode Z.

As shown in FIG. 6, a connection number n1 is assigned to the base unit 3 as a home wired telephone, for example, and the connection number n1 is registered in the public line network 2. The PHS main unit 1A can be wirelessly connected to the parent device 3 in the home mode X, and can be used as a cordless child device of the parent device 3. Thereby, the PHS main body 1A
In the home mode X, extension communication with the base unit 3 is possible, and by connecting to the public line network 2 via the base unit 3, it can communicate with other communication devices such as the wired telephone 3 a and the portable communication unit 5. Outside line communication is possible. When performing extension communication, the PHS main unit 1A has, for example, a communication number of N1 as an extension number. On the other hand, the connection number of the PHS main unit 1A when performing external line communication in the home mode X is the connection number n1 of the master unit 3.

It is assumed that a PHS main unit 1B usable as a cordless slave unit is wirelessly connectable to the base unit 3 in addition to the PHS main unit 1A. This PHS body 1B
As in the PHS main unit 1A, in the home mode X, extension communication with the master unit 3 is possible, and by connecting to the public line network 2 through the master unit 3, a wired telephone 3a, a portable communication unit 5, etc. External communication with other communication devices. The PHS main unit 1B when performing extension communication
Is the extension number N2, for example. The connection number of the PHS main unit 1B when performing external line communication in the home mode X is the connection number n1 of the base unit 3.

As described above, when the PHS main units 1A and 1B have the extension numbers, the PHS main unit 1A can call the PHS main unit 1B with the extension number N2 via the base unit 3 and perform the extension communication in the home mode X. Becomes PHS body 1
Similarly, B can call the PHS main unit 1A and perform extension communication. In addition, PHS main body 1A, 1B
Is used for external line communication connected to the public line network 2 in the home mode X, a charge for wired telephone is charged as a line charge for the base unit 3. Also, if the PHS main units 1A and 1B are used for extension calls in the home mode X, no line usage fee is incurred because the public line network 2 is not used.

As described above, the PHS body 1A and the PHS
The HS main unit 1B has a relationship between cordless slaves that share the master 3. The PHS main unit 1A and the PHS main unit 1B, which are in a relationship between the cordless handsets, leave the restraint of the base unit 3 and call each other directly in the transceiver mode Z without passing through the base unit 3, and It is possible for them to communicate with each other.

When the PHS main body 1A and the PHS main body 1B perform the transceiver communication using the function of performing the transceiver communication (transceiver function), the PHS main bodies 1A and 1B are within the range where the radio signals reach each other, that is, P
The HS main bodies 1A and 1B can communicate only within a close range of 100 m to 200 m. Further, in the transceiver communication, since the wireless signals do not pass through the base unit 3, communication is possible even in a range where wireless signals from the base unit 3 do not reach, such as outdoors, as long as the wireless signals reach each other. Of course, PHS
The main units 1A and 1B can perform transceiver communication with each other in the transceiver mode Z even at home within a range where a wireless signal from the master unit 3 can reach.

When the PHS main units 1A and 1B perform transceiver communication using the transceiver mode Z, they do not use the public line network 2 and do not incur a line usage fee. Note that the PHS main unit 1A is set in the transceiver mode Z.
In the case of using the PHS main body 1A, for example, T1 is given to the PHS main body 1A as a transceiver number. Further, for example, T2 is assigned to the PHS main body 1B as a transceiver number. Note that T1 and T2 are "1" to "99".
9 is an arbitrary 1- to 3-digit number other than "0" is the first digit of the connection number, and special numbers such as police station "110", fire station "119", weather forecast "177", etc. It is set under the condition that it does not overlap with the connection number.

In addition, wireless communication base stations 4 provided at various places such as outdoors are connected to the public line network 2. PHS
As shown in FIG. 7, the main units 1A and 1B can be used as portable terminals of the public telephone network 2 by wirelessly connecting to the wireless communication base station 4 in the public mode Y. In other words, the PHS main unit 1A communicates with the wired telephone 3a, the portable communication device 5, and other P
It can communicate with HS-type portable terminals and the like. In addition,
The PHS main bodies 1A and 1B are capable of performing a handover while moving while switching from the connected wireless communication base station 4 to another wireless communication base station 4.

As described above, the PHS main units 1A and 1B are used as the portable terminals using the public mode Y as the radio communication base station 4
If you want to connect to the public telephone network 2 and use it,
A mobile phone line usage fee is incurred. At this time, the line usage fee is higher than the line usage fee of the parent device 3 as a slave unit as a wired telephone. Note that P
When using the HS main unit 1A, 1B as a portable terminal,
A connection number independent of the parent machine 3, for example, n2 and n3 is given.

As described above, the PHS main bodies 1A, 1B
Can be used in the home mode X in a range where the wireless signal of the base unit 3 reaches, and in the public mode Y in a range where the wireless signal from the wireless communication base station 4 installed outdoors or the like reaches. Has become. In addition, the PHS body 1A, 1
When B is in a close position, it can be used in transceiver mode Z.

The PHS body 1A configured as described above
The operation of will be described in detail below.

Assume that the user operates the mode selection button 11c of the operation unit 11 to set the use mode to the home mode X. When the use mode is the home mode X, the PHS main unit 1A has a cordless communication function as a cordless slave of the master unit 3. Therefore,
When the extension operation button is pressed in the home mode X, the PHS main unit 1A is connected to the base unit 3 by extension communication. After operating the extension button, the extension number N2 of the PHS main unit 1B is operated.
, The other cordless child device P via the parent device 3
It is connected to the HS main unit 1B by extension communication.

In the home mode X,
If the connection number of another communication device registered in the public line network 2 is operated without operating the operation button for the extension, the PHS main unit 1A connects to the public line network 2 through the base unit 3. It will be connected. In this case, the line usage fee for the PHS main unit 1A is the line usage fee for the base unit 3 as a wired telephone. The home mode X can be used only when the PHS main unit 1A transmits a radio signal with the master unit 3 to the radio unit 1.
4 is limited to the range that can be transmitted and received.

Next, it is assumed that the user operates the mode selection button 11c of the operation unit 11 to set the use mode to the public mode Y. When the use mode is the public mode Y, the PHS main unit 1A has a public communication function as a portable terminal independent of the parent device 3. Therefore, in the public mode Y, the public network 2
Is operated, the PHS main unit 1A is connected to the public line network 2. In this case, the line usage fee for the PHS main unit 1A is PH
The line usage fee for the S-type mobile terminal is higher than the line usage fee for a wired telephone.
The use of the public mode Y is limited to a range in which a wireless signal with the wireless communication base station 4 can be transmitted and received by the wireless unit 14.

Further, it is assumed that the user operates the mode selection button 11c of the operation unit 11 to set the use mode to the transceiver mode Z. In the state where the use mode is the transceiver mode Z, the PHS main unit 1A can be directly connected to the PHS main unit 1B, which is another slave unit of the master unit 3, without passing through the master unit 3 and the public line network 2. It will have a transceiver function. Therefore, when the transceiver number T2 of the PHS main unit 1B is operated in the transceiver mode Z, the PHS main unit 1A
Is connected to the PHS body 1B. In this case, since the PHS main unit 1A does not use the public line network 2, no line use fee is charged. The use of the transceiver mode Z is limited only when the PHS main unit 1B is located near the PHS main unit 1A.

It is also assumed that the user operates the automatic mode switch input button 11d of the operation unit 11 and the automatic mode switch 15 is turned on. Also, PHS
The main unit 1A is located in or near the home,
It is assumed that the wireless unit 14 has received the wireless signal from the wireless unit 14.
As described above, when the wireless signal from the base unit 3 is input to the wireless unit 14, the wireless signal is transmitted from the wireless unit 14 to the control unit 13. When a wireless signal is input, the control unit 13
It recognizes that S body 1A can be used in home mode X. Then, the control unit 13 transmits an instruction signal to the mode switching unit 12 to set the use mode to the home mode X.

As described above, the automatic mode switch 15 of the PHS main unit 1A is automatically set to the home mode position 15a where the home mode X can be used in a range where the radio signal from the master unit 3 can reach. . by this,
The PHS main unit 1A is prevented from incurring a high line usage fee using the public mode Y, even though the home mode X is within the usable range.

It is also assumed that the automatic mode switch 15 is in the ON state, and that a radio signal from the master unit 3 has not been received by the radio unit 14. In such a case, the PHS body 1A
Automatically changes to public mode Y and transceiver mode Z
Mobile mode position 1 in which both can be used
5b. If a radio signal from the radio communication base station 4 is being received by the radio unit 14 at this time, both the public mode Y and the transceiver mode Z are in a standby state. On the other hand, when the radio signal from the radio communication base station 4 is not received by the radio unit 14, the PHS main unit 1
a becomes unavailable in the public mode Y, and a message to that effect is displayed on the operation screen 11b.

When the connection number input operation is performed with the operation button 11a of the operation unit 11 while the automatic mode switch 15 is in the portable mode position 15b, the connection number information is input from the operation unit 11 to the control unit 13. . Control unit 1
No. 3 judges from the connection number information whether the first digit of the connection number is “0”, “1”, or other than “0” and “1”. When the first digit of the input connection number is “0”, the control unit 13 transmits a switching signal for switching to the public mode Y to the mode switching unit 12.

When the first digit of the input connection number is “1”, the control unit 13 sets a predetermined period of time after the “1” is input, specifically, for 1 to 2 seconds. It goes into a standby state. If the second digit number is not input before the standby state ends, the control unit 13 transmits a switching signal for switching to the transceiver mode Z to the mode switching unit 12. If the second digit number is input within a predetermined time after the first one digit “1” of the connection number is input, the control unit 13 further performs the predetermined time, specifically, 1 to 2 It is in a standby state for seconds. If the third digit number is not input before the standby state ends, the control unit 13 transmits a switching signal for switching to the transceiver mode Z to the motor switching unit 12.

Further, when the third digit number is inputted after the first and second digit connection numbers are inputted, the control unit 13 sets the inputted three digit number to the control unit 13. Is compared with a special connection number stored in advance in the server. Then, as a result of the comparison, when the input three-digit number matches the special connection number, the control unit 13 transmits a switching signal for switching to the public mode Y to the mode switching unit 12. I do. If the input three-digit number does not match the special connection number, the control unit 13
Transmits a switching signal for switching to the transceiver mode Z to the mode switching unit 12.

When the first digit of the input telephone number is other than “0” or “1”, the control unit 13 instructs the mode switching unit 12 to switch to the transceiver mode Z. Send a signal.

As described above, the portable mode position 15b
In this state, when the connection number of another communication device to be connected with is input by the operation unit button 11a, the public mode Y or the transceiver mode Z is automatically selected based on the connection number, and the other communication device is selected. Is to be called. With this configuration, when the automatic mode switch 15 is turned on, only by operating the connection number, the use mode is automatically selected and used, so that the communication mode can be reliably connected to another communication device to be connected. Become.

Although the embodiment of the portable communication device in the PHS of the present invention is configured as described above, various modifications can be made without departing from the gist of the present invention. For example, the cordless handset that shares the base unit 3 is the PHS main unit 1A and the PHS main unit.
Although the description has been made with two units of the main body 1B, three or more units may be used as necessary, or one unit may be used. However, in the case where one cordless handset is used, there is substantially no opportunity to use the transceiver function. Therefore, in this embodiment, two cordless cordless handsets have been described.

Although the PHS main unit 1A is provided with an extension number, an outside line number, and a transceiver number which are different connection numbers, the PHS body 1A may be unified with two numbers. Further, in the above-described embodiment, the PHS portable communication device has been described as an example.
The present invention can be applied to various portable communication devices having a public communication function and a transceiver function.

Further, in the embodiment of the present invention, the PHS main units 1A and 1B have been described as telephone devices used for the purpose of communication, but the PHS main units 1A and 1B are provided with communication functions other than telephone communication such as data communication. The present invention can also be applied to a portable communication device provided with. Further, the present invention can be used not only for the general public line network 2 but also for switching between a communication function and a transceiver function in a so-called private line laid by a specific organization or the like. Include such private lines.

The PHS main unit 1A puts the control unit 13 in a standby state for a predetermined time when the first first digit number "1" or the second digit number is input. If no second or third digit number is entered in
The mode switching unit 12 is switched to the transceiver mode Z. For example, if the control unit 13 is not in the standby state and the first or second digit number is input and the transmission button is pressed. The transceiver mode Z may be determined so that communication can be performed in the transceiver mode Z.

Further, in the present embodiment, the transceiver numbers T1 and T2 for assigning the master unit 3 to the common slave unit are:
Although "1" to "999" are arbitrary numbers of 1 to 3 digits,
A number such as “0” or “023” in which the first digit becomes “0” may be given. In this case, the control unit 1 does not set the mode switching unit 12 to the public mode Y when the first single digit “0” is input.
3 is set to the standby state, and after the transceiver number “0” or “023” is input, the control unit 13 is set to the standby state again for a predetermined time and then set to the transceiver mode Z. With this configuration, the transceiver numbers T1 and T2 can be numbers such as “0” and “023” in which the first digit is “0”.

The first digit of the transceiver numbers T1 and T2 may be set so as not to be "0" or "1". With this configuration, it is possible to set the mode switching unit 12 to the transceiver mode Z immediately without putting the control unit 13 in a standby state after the first digit is input.

[0068]

According to the portable communication device according to the first and third aspects, when a connection number is input in the portable mode, the connection number automatically allows the user to perform the public communication function or the communication without performing the mode switching operation. Since the use mode is selected for any of the transceiver functions, the portable communication device is easy to operate and convenient for the user.

According to the portable communication device of the second aspect, as long as the cordless communication function can be used,
Home mode is automatically selected,
Users can make outgoing calls in the home mode, which is cheaper than the public mode, without having to switch modes, preventing users from accidentally calling at a higher rate. I do.

[Brief description of the drawings]

FIG. 1 is an explanatory block diagram showing a circuit structure of a portable communication device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an entire public communication system using the portable communication device shown in FIG. 1 as a terminal.

FIG. 3 is a front view showing the entire portable communication device shown in FIG. 1;

FIG. 4 is a block diagram showing a main part of a circuit structure of the mobile communication device shown in FIG.

FIG. 5 is a block diagram schematically illustrating criteria for determining a connection number by a control unit of the mobile communication device illustrated in FIG. 1;

FIG. 6 is a schematic diagram showing a relationship between the portable communication device shown in FIG. 1 and a parent device.

FIG. 7 is a schematic diagram showing a relationship between the portable communication device shown in FIG. 1 and a wireless communication base station.

FIG. 8 is a schematic diagram showing a state in which a PHS type portable communication device of the first prior art is stored in a charger.

FIG. 9 is a block diagram showing a concept of a PHS type portable communication device according to a second prior art.

[Description of Signs] 1A, 1B PHS main unit (portable communication device) 2 Public line network 3 Base unit X Home mode (mode for using cordless communication function) Y Public mode (mode for using public communication function) Z Transceiver mode (mode for using transceiver function) 15 Automatic mode switch 15a Home mode position 15b Mobile mode position

Claims (3)

[Claims] 1. A cordless communication function used as a slave of a predetermined master, a public communication function used as a portable terminal of a public line network independent of the master, and a plurality of slaves of the master. A portable communication device having a transceiver function capable of directly communicating with each other without passing through the master unit, and a portable communication device having a portable mode in which the public communication function and the transceiver function are simultaneously in a standby state; When the connection number of the other communication device to be connected is input, either the public communication function or the transceiver function is automatically selected by the connection number.
A portable communication device for calling the other communication device when used. 2. An automatic mode comprising the portable mode and a home mode in which the cordless communication function can be used,
2. The portable communication device according to claim 1, wherein the other communication device is automatically called in the home mode within a range where the cordless communication function can be used. 3. A public communication function to be used as a portable terminal of a public line network, and a transceiver function capable of directly communicating between the portable terminals, wherein the public communication function and the transceiver function are simultaneously in a standby state. In a portable communication device provided with a portable mode, when a connection number of another communication device to be connected in the portable mode is input, one of the public communication function and the transceiver function is automatically performed by the connection number. A portable communication device for selectively calling and using the other communication device.