JPH0697877A - Mobile radio communication equipment - Google Patents

Abstract

PURPOSE:To considerably extend the use time of a mobile radio communication equipment and to surely transmit urgent information to a user. CONSTITUTION:A circuit i6 for pager is provided besides circuits 15 and 17 for portable radio telephone, and a mode designating key to select and designate the operation mode of the equipment is provided; and when the pagher mode (PAG mode) is designated by a PAG key, the circuit 16 for pager is set to the operating state, and power supply to circuits 15 and 17 for portable radio telephone is cut off to set these circuits to the non-operating state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radio communication device used as a mobile station of a mobile radio communication system such as a mobile radio telephone system or a cordless radio telephone system.

[0002]

2. Description of the Related Art Cellular mobile radio telephone systems and cordless radio telephone systems are known as conventionally used mobile radio communication systems.

First, a cellular type portable radio telephone system is connected to a control station CS connected to a wired telephone network NW, for example, as shown in FIG. 10, and to the control station CS via wired lines CL1 to CLn, respectively. Multiple base stations BS
1 to BSn and a plurality of mobile stations PS1 to PSm. The base stations BS1 to BSn form radio zones E1 to En called cells in different areas. The mobile stations PS1 to PSm are connected to a base station in a wireless zone in which the mobile station is located via a wireless line, and further connected to the wired telephone network NW from this base station via a control station CS. And in this state, the wired telephone network N
It becomes possible to talk with the telephone connected to W. Further, when the mobile stations PS1 to PSm move to another wireless zone during a call, the wireless line is switched to the wireless line of the destination base station by the control of the control station CS, and the call continues.

On the other hand, in the cordless radio telephone system, a fixed device corresponding to a base station of a portable radio telephone system is connected to a subscriber line terminal of a home or office, and a radio telephone corresponding to a mobile station is connected via a radio line. It is adapted to be connected to the fixing device. This cordless telephone system is capable of communication within a small area with a radius of about 100 m centered on a fixed device, and the call is disconnected when going out of this area.

[0005]

By the way, the radio telephones used as mobile stations in these portable radio telephone systems and cordless radio telephone systems always use a battery as a power source. Therefore, the usage time of the wireless telephone is limited by the life of this battery. For example, in a cellular type mobile radio telephone, the current consumption during standby is about 50 mA, so if a nickel cadmium (NiCd) battery of 600 mAH is used as the battery, the standby operation alone can be used for only 12 hours. Therefore, if the wireless telephone is carried for a long time, the battery life is exhausted during the carrying, and it may be impossible to make a call when trying to make a call, which is extremely inconvenient.

Further, in order to prolong the use time of the wireless telephone, various measures such as circuit improvement and battery saving system improvement have been considered. However, since many circuits operate in a mobile wireless phone even during standby,
The power consumption that can be reduced by the above-mentioned improvement of the circuit is small, and thus it has been impossible to sufficiently extend the usage time.

On the other hand, the following measures have been considered as measures for significantly extending the usage time of the wireless telephone. That is, when analyzing the usage status of the mobile wireless phone, the mobile wireless phone is not always always used evenly throughout its carrying, and there are relatively frequently used time zones and rarely used time zones. . Therefore, focusing on this point, it is conceivable that the user turns off the power switch of the wireless telephone to put the wireless telephone into a non-operating state during a period of low usage even while being carried. However, in this way, even if an incoming call occurs while the power is turned off, the wireless telephone does not respond to this at all, and as a result, emergency contact is not transmitted to the user, which is extremely undesirable. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to significantly extend the use time of a mobile radio communication device, and to make sure that a user can make an emergency contact. It is to provide a mobile wireless communication device capable of communicating with a mobile communication device.

Another object of the present invention is to provide a mobile radio which can be automatically set to a low power communication mode when the battery level is low, thereby further extending the usage time of the device. It is to provide a communication device.

Still another object of the present invention is that the user can automatically set the communication mode of low power without having to specify the mode each time, thereby effectively extending the usage time of the device. It is to provide a mobile radio communication device that can be operated and is excellent in operability.

[0011]

In order to achieve the above object, the present invention provides, in addition to a telephone communication circuit section for performing two-way wireless communication with a base station in response to a call or an incoming call, Selection for receiving a selective call signal transmitted from the base station or another base station via the second wireless line and notifying that a call has occurred when the selective call signal is a signal addressed to itself A call receiving circuit unit is further provided, and a mode designation input unit for selectively designating a telephone mode and a selective calling mode as operation modes, and an operation control unit. When the selective call mode is designated by the mode designation input means by the operation control means,
The selective call receiving circuit section is set to the operating state, while the telephone communication circuit section is set to the non-operating state.

In order to achieve the above-mentioned other object, another invention of the present invention is to selectively specify a telephone communication circuit section, a selective call receiving circuit section, and a telephone mode and a selective call mode as operation modes. In addition to the mode designation input means for performing the operation, a mode change control means and an operation control means are provided. The mode change control means detects the remaining usable time corresponding to the remaining amount of the battery, and when the remaining usable time is less than the predetermined time, cancels the mode designated by the mode designation input means and operates. Control is performed to change the mode to the selective call mode. And
When the selective call mode is set as the operation mode by the mode designation input means or the mode change control means, the selective call reception circuit unit is set to the operating state by the operation control means and the telephone communication circuit is set. The part is set to a non-operating state.

In order to achieve the above-mentioned another object, another aspect of the present invention is to selectively specify a telephone communication circuit section, a selective call receiving circuit section, and a telephone mode and a selective call mode as operation modes. In addition to the mode specification input means to
A time information input unit for inputting time information indicating a time or a time zone for setting the operation mode to the selective call mode, a mode change control unit, and an operation control unit are provided. The mode change control means performs control to set the operation mode to the selective call mode when the time or time zone represented by the time information input by the time information input means comes. When the selective call mode is set as the operation mode by the mode designation input means or the mode change control means,
The operation control means sets the selective call receiving circuit section to an operating state and sets the telephone communication circuit section to a non-operating state.

[0014]

As a result, according to the present invention, when the operation mode of the apparatus is set to the selective call mode by the mode designation input means, only the circuit section for receiving the selective call operates and the circuit section for telephone communication does not operate. Set to active state. Here, the power consumption of the selective call receiving circuit portion is significantly smaller than that of the telephone communication circuit portion, for example, about 1/10. Therefore, for example, if the operation mode of the device is set to the selective call mode by the mode designation input means during a time period of low usage even while being carried, the power consumption of the device during this time period is This can be significantly reduced as compared with the case of the mode, which makes it possible to extend the life of the battery and prolong the usage time of the device.
Further, in the above-mentioned time zone in which the frequency of use is low, the selective call reception circuit section monitors arrival of a selective call signal addressed to itself, and when a call addressed to self occurs, the fact is notified. Therefore, for example, when it becomes necessary to make an emergency contact to the user, it is possible to inform the user by using the selective call function.

According to another aspect of the present invention, the remaining usable time corresponding to the remaining amount of the battery is detected, and when the remaining usable time becomes less than the predetermined time, the mode designated by the mode designation input means is released. Then, the operation mode is automatically changed to the selective call mode. Therefore, even if the user does not specify the selective call mode by the mode designation input means at all, the apparatus automatically shifts to the power saving operation by the selective call receiving circuit section when the battery level becomes low. . Therefore, the consumption of the battery is reduced and the usage time of the device is extended.

According to still another aspect of the present invention, when the time information for indicating the time or the time zone for setting the operation mode to the selective call mode is previously input by the time information input means, the time or the time zone is set. Then, the operation mode of the device is automatically changed from the telephone mode to the selective calling mode, and the power saving operation is performed by the selective calling receiving circuit section. Therefore, the user does not have to perform the mode designation operation each time by the mode designation input means, and the operability is improved. Further, even if the user forgets the mode designation operation, the operation mode of the device automatically becomes the selective calling mode at the designated time or time zone, so that the effect of extending the usage time can be surely exhibited.

[0017]

EXAMPLES The present invention will be described below based on examples.

FIG. 1 is a circuit block diagram showing the configuration of a mobile radio communication apparatus according to an embodiment of the present invention. The device of this embodiment has a function as a portable wireless telephone and a function as a selective call receiver (pager).

That is, a radio carrier signal arriving from a base station (not shown) is received by an antenna 11 and then passed through an antenna duplexer (DUP) 12 to a receiving circuit (RX) 1
Input to 3. In the receiving circuit 13, according to the receiving local oscillation signal generated from the frequency synthesizer (SYN) 22, the frequency conversion of the radio carrier signal for the mobile radio telephone and the radio carrier signal for the pager, which are different in frequency band, is performed. The processing for performing is performed. The reception intermediate frequency signal output from the reception circuit 13 is passed through the change-over switch 14 to the reception baseband circuit 15 for the mobile radio telephone in the mobile radio telephone mode (hereinafter referred to as HHP mode), and to the pager mode. In the case of (hereinafter referred to as PAG mode), they are respectively input to the baseband circuit 15 for pager. The changeover switch 14 performs a switching operation according to a changeover control signal generated from the control circuit (CONT) 21.

Baseband circuit 16 for portable radiotelephone
Includes a demodulation circuit 15a, a reception amplifier 15b, and a speaker 15c as a receiver. Then, the received intermediate frequency signal is subjected to, for example, FM demodulation processing in the demodulation circuit 15a to reproduce the baseband reception signal, the reception amplifier 15b is amplified to an appropriate level, and the speaker 15c outputs the sound. There is.

On the other hand, the baseband circuit 16 for the pager has a demodulation circuit 16a for the selective calling signal. The demodulation circuit 16a demodulates the received intermediate frequency signal into a baseband selective calling signal, and inputs the individual number code (ID code) and the message code included in the selective calling signal to the control circuit 21, respectively. The control circuit 21 is provided with a microcomputer as a main control unit, and controls the entire apparatus as a whole. For example, when the ID code and the message code are input, the received ID code is compared and collated with the ID code of the own device stored in the ROM 23 in advance. If the two codes match, it is determined that a call to the own device has occurred, and the notification drive signal is set to the changeover switch 1
It is supplied to the sounder drive circuit 16c or the vibrator (VIB) 16e via 6b. Sounder drive circuit 16
The sound c is generated from the sounder 16d according to the notification drive signal. The vibrator 16e generates vibration according to the notification drive signal. When the control circuit 21 determines that a call to its own device has occurred, the control circuit 21 decodes the received message code. Then, the message information reproduced by this decoding processing is stored in the RAM 24 and is supplied to the display drive circuit 27. The display drive circuit 27 causes the liquid crystal display (LCD) 28 to display a message corresponding to the message information.

On the other hand, the device of this embodiment is provided with a transmission system circuit 17 for a portable radio telephone. This transmission circuit 17
Is a microphone 17a as a transmitter, a transmission amplifier 17b, a modulation circuit (MOD) 17c, and a transmission circuit (T
X) 17d. The speaker's transmitted voice is collected by the microphone 17a and converted into a transmitted signal,
It is amplified by the transmission amplifier 17b and input to the modulation circuit 17c. In the modulation circuit 17c, the intermediate frequency signal is FM-modulated, for example, according to the transmission signal. The modulated transmission intermediate frequency signal is mixed with the transmission local oscillation signal generated from the frequency synthesizer 22 in the transmission circuit 17d, frequency-converted into a radio high frequency signal, and further high frequency amplified. Then, this radio high frequency signal is transmitted from the antenna 11 to the base station via the transmission path switch 18 and the antenna duplexer 12, respectively. The transmission path switch 18 is turned on in the HHP mode and turned off in the PAG mode according to the control signal output from the control circuit 21.

Further, the power supply circuit system of the apparatus of this embodiment has a power supply circuit 31 composed of, for example, a DC / DC converter. The power supply circuit 31 generates a predetermined operating power supply voltage based on the output voltage of the battery 32. The operating power supply voltage output from the power supply circuit 31 is branched into three power supply voltages Vcc0, Vcc1, and Vcc2, which are the same as each other.
One of them, Vcc1, is supplied to the reception baseband circuit 15 and the transmission system circuit 17 for the portable radio telephone via the power switch 33, respectively. The other one Vcc2 is supplied to the baseband circuit 16 for the pager through the power switch 34, and the remaining one Vcc0 is supplied to the circuit commonly used by the portable radio telephone and the pager. The power switches 33 and 34 are turned on / off according to a power feeding control signal generated from the control circuit 21.
Further, a voltage detection circuit (DE
T) 35 is provided. This voltage detection circuit 35
The output voltage of the battery 32 is monitored, and its detection information VDET
To the control circuit 21.

Further, in addition to the dial keys, the operation switch section (KEY) 26 has an H switch as shown in FIG.
HP key 26a, PAG key 26b, OFF key 2
6c and a TEL key 26d are provided. HHP
The key 26a is operated when setting the operation mode of the device to the HHP mode. The PAG key 26b is operated when setting the operation mode of the device to the PAG mode. OF
The F key 26c is operated when setting the apparatus to a non-operating state. The TEL key 26d is used as a call switch. The reference numeral 26e designates the control circuit 2 for controlling the operation of the above keys.
1 is a signal generator that generates an operation signal to be transmitted to the communication device 1. FIG. 3 shows the appearance of the apparatus of this embodiment.
HP key 26a, PAG key 26b and OFF key 2
6c is provided on the side surface of the housing.

Next, the operation of the apparatus configured as described above will be described. In the standby state, the control circuit 21 makes the HHP key 26a and the PAG key 2 respectively in step 4a, step 4b and step 4c as shown in FIG.
6b and the operation of the OFF key 26c are repeatedly monitored. When the OFF key 26c is pressed in this state, the control circuit 21 keeps only the operating state of itself and cuts off the power supply to the other circuits to bring the apparatus into a non-operating state.

By the way, it is assumed that the user presses the HHP key 26a to use the device as a portable radio telephone. Then, the control circuit 21 executes the control for the HHP mode thereafter. That is, as shown in FIG. 5, first, in step 5a, the power switch 33 is turned on and the power switch 34 is turned off. Then,
The operating power supply voltage Vcc1 is supplied to the receiving baseband circuit 15 and the transmitting system circuit 17 for the portable radio telephone, and thereby the receiving baseband circuit 15 and the transmitting system circuit 17 for the portable radio telephone are in the operating state. on the other hand,
The operating power supply voltage V is applied to the baseband circuit 16 for the pager.
Since cc2 is not supplied with power, the baseband circuit 16 for the pager is deactivated. Further, in step 5b, the changeover switch 14 is changed over to the reception baseband circuit 15 side for the mobile radio telephone. Therefore, the receiving circuit 1
3 is a reception baseband circuit 15 for the portable radio telephone.
Are connected. Further, the transmission path switch 18 is set to the ON state, whereby the transmission system circuit 17 for the portable radio telephone is connected to the antenna duplexer 12. Thus,
After that, the device operates as a portable wireless telephone. In addition, the fact that the operation mode is set to the HHP mode is displayed on the LCD 28.

In the state where the HHP mode is set in this manner, the control circuit 21 performs operation monitoring of outgoing call and arrival monitoring of incoming call in steps 5c and 5d, respectively. Then, when a calling operation is performed, a calling process is executed, and when an incoming signal arrives from the base station, an incoming process is executed. Further, the control circuit 21 fetches the detection information VDET generated from the voltage detection circuit 35 in step 5e,
In step 5f, it is determined whether or not this VDET has dropped below the predetermined voltage VREF. If VDET is equal to or higher than the predetermined voltage VREF, the HHP mode is continued as it is, but if VDET is lower than the predetermined voltage VREF,
It is judged that the capacity of the battery 32 is low, and the operation mode is changed from the HHP mode to the PAG mode.
The control in the AG mode is executed.

Further, the control circuit 21 monitors the input of the mode change time in step 5g. In this state, it is assumed that the user inputs the above-mentioned time period using, for example, a dial key, paying attention to the fact that the frequency of use as a mobile radio telephone is low during lunch time, for example, from 12:00 to 13:00. . Then, the control circuit 21 shifts from step 5g to step 5h, fetches the time information input by the dial key, and stores it in the RAM.
Store in 24. Further, in the state in which this time information is stored, the control circuit 21 executes RA at step 5i.
Based on the time information for changing the mode stored in M24 and the current time information output from the timer (TIM) 25, it is determined whether or not the time zone for changing the mode is reached. Then, when it comes to the mode change time zone, the operation mode is changed from the HHP mode to the PAG mode, and thereafter, the control for this PAG mode is executed during the time zone.

On the other hand, in the standby state, the PAG key 2
When 6b is pressed, the control circuit 21 sets the power switch 34 to the on state and the power switch 33 to the off state in step 6a, as shown in FIG. Then, the operating power supply voltage Vcc2 is supplied to the baseband circuit 16 for the pager, so that the baseband circuit 16 for the pager is in the operating state. On the other hand, the operating power supply voltage Vcc1 is not supplied to the reception baseband circuit 15 and the transmission system circuit 17 for portable radio telephones, and as a result, these circuits 15 and 17 for portable radio telephones are deactivated. Further, in step 5b, the control circuit 21 switches the changeover switch 14 to the pager baseband circuit 16 side, thereby connecting the receiving circuit 13 and the pager baseband circuit 16 to each other. Further, the transmission path switch 18 is set to the off state, so that the transmission system circuit 17 for the mobile radio telephone is disconnected from the antenna duplexer 12. Thus, the device will then operate as a pager. It should be noted that the fact that the operation mode is set to the PAG mode is displayed on the LCD 28.

In this PAG mode state, the control circuit 21
Performs intermittent reception control for battery saving, and monitors the occurrence of a call addressed to itself in step 6c. This call occurrence monitoring includes the ID code collation processing described above. When a call addressed to the own device is generated, a call notification process is executed to generate a sound from the sounder 16d or the vibrator 1
The user is informed of the occurrence of a call by vibrating the device by 6e, and the received message code is decoded to display the message information on the LCD 28. It should be noted that the tone color and the intermittent period of the ringing tone generated from the sounder 16d are different from the ringer tone generated when an incoming call occurs in the HHP mode.

Next, an example of the procedure and the operation contents when the mobile station operating as described above makes a call will be described with reference to FIG.
And it demonstrates with reference to FIG. It is assumed that the user presses the PAG key 26b in the mobile station B, for example. Then, in the mobile station B, control for setting the device to the PAG mode is first performed in step 7b1 as described in FIG. In the PAG mode, the mobile station B sends information indicating that the PAG mode has been set to the base station in step 7b2. Then, in the base station, step 7
The information indicating that the mobile station B is set to the PAG mode is registered in c1.

In this state, it is assumed that the user makes a call operation to the mobile station B in another mobile station A in which the HHP mode is set, for example. Then,
The mobile station A first performs a calling process in a predetermined procedure in step 7a1 and transmits a calling signal to the base station. On the other hand, when the base station receives the call signal and identifies the call destination in step 7c2, the base station determines in step 7c3 what operation mode the mobile station B of the call destination is currently set to. Since the mobile station B is now set to the PAG mode as described above, the base station judges that the incoming call for the mobile station B is impossible, and step 7c
In step 4, a guidance message to that effect is created and transmitted to the mobile station A that originated the call. A message to the effect that the telephone number of the calling mobile station A is to be input is inserted in this guidance message. When the guidance message comes from the base station after the calling process, the mobile station A receives and decodes this message in step 7a2, and displays the content on the LCD 28.

In this state, it is assumed that the user of the mobile station A gives up calling in the HHP mode and inputs his / her telephone number as a pager message in accordance with the guidance message in order to perform selective calling in the PAG mode. . Then, the mobile station A creates pager message information including the telephone number of the mobile station A in step 7a3 and transmits the pager message information to the base station. In contrast, the base station
When the pager message information is received in step 7c5, a selective call signal including the pager message information is created in step 7c6 and transmitted to the mobile station B. At this time, the base station returns a message to the mobile station A, such as "I am calling now. Please put your handset on hold."

During standby, the mobile station B monitors the occurrence of a call addressed to itself while performing an intermittent reception operation for battery saving, as described in step 6c of FIG. In this state, the selective call signal is received in step 7b3, and as a result of the ID code collation in step 7b4, if it is determined that the call is for itself, the mobile station B generates a sound or vibration in step 7b5. Then, the user is informed of the occurrence of the call and the LCD 28 displays the telephone number of the mobile station A as the calling source, which is inserted in the received message. Also,
In step 7b6, the received message is transferred to the RAM2.
Store in 4.

Now, it is assumed that the user confirms the call at the mobile station B and presses the TEL key 26d. Then, the mobile station B changes the operation mode of its own device to the temporary HHP mode in step 8b1 as shown in FIG. Then, in the HHP mode, the received message stored in the RAM 24 in step 8b2, that is, the telephone number of the mobile station A as the calling source is displayed on the LCD 28, and then the telephone number stored in the RAM 24 in step 8b3. Then, the calling process for the mobile station A is executed. That is, the calling process at this time is performed by the user without entering the telephone number of the mobile station A with the dial key.
Automatically according to the telephone number stored in the AM 24.

When the calling signal arrives from the mobile station B, the base station receives the calling signal in step 8c1,
In step 8c2, an incoming signal is created and transmitted to the mobile station A. On the other hand, when the mobile station A receives the incoming signal in step 8a1, the mobile station A executes the incoming call process in step 8a2 to generate a ringer sound to notify the user of the incoming call. When the user performs a hook-off operation and responds, the mobile station A enters the call processing state in step 8a3, and thereafter, the call can be established with the mobile station B, which is the calling source, in which the call processing state is set almost simultaneously in step 8b4. Becomes

When the call ends and the user of the mobile station A terminates the call, for example, the mobile station A performs step 8a4.
Ends the call processing and returns to the standby state. In addition, according to the termination processing of the mobile station A, the base station also performs step 8c.
The end of call process is performed in 3, and the end of call is notified to the mobile station B by this. On the other hand, the mobile station B uses the step 8b.
After the end of call process in 5, the process for returning the operation mode of the own device from the HHP mode to the PAG mode is executed in step 8b6. Then, when returning to the PAG mode, the operation for monitoring the occurrence of calling to the self by the selective calling signal is performed thereafter.

As described above, according to this embodiment, the following various effects can be obtained.

(1) In addition to a circuit for a portable radio telephone, a circuit for a pager is provided, and mode designation keys 26a to 26c for selectively designating an operation mode of the apparatus are provided, and a PAG key 26b among them is used for a pager mode. (PA
G mode) is specified, the circuit for the pager is activated and the power supply to the circuit for the mobile wireless telephone is cut off to set the circuit to the non-operational state. The use time of the device can be significantly extended compared to a device having only one. For this reason,
For example, it is possible to reduce the occurrence of an inconvenience such that the life of the battery is exhausted while the user is carrying the mobile phone and the mobile phone cannot be used when the user tries to make a mobile phone call. Further, in the state where the pager mode is set, the selective call signal can be used for calling, so that emergency contact can be surely made.

(2) When the output voltage of the battery 32 falls below the specified value, it is determined that the battery 32 has a short service life, and the operation of the apparatus is automatically changed from the HHP mode to the PAG mode with low power consumption. It is possible to prolong the service life of the battery 32 and further extend the usage time.

(3) For example, by inputting a time zone with a low call frequency in advance and storing it in the RAM 24, when the current time measured by the timer 25 becomes a time zone in which the mode is changed, the operation of the apparatus is performed. Mode is automatically H
The HP mode will be changed to the PAG mode.
For this reason, the user does not have to perform the mode changing operation each time, which allows the battery 32 to be easily and reliably operated.
The service life can be extended and the usage time can be extended.

(4) When the PAG mode is set, the mobile station notifies the base station of the fact and registers it in the base station, and a call request to this mobile station is issued from another mobile station. In this case, the base station notifies the calling mobile station that the calling mobile station is in the PAG mode, so that the calling for the mobile radio telephone is changed to the pager calling. , When a call is made to a mobile station with the PAG mode set, the problem that the call is disconnected without understanding the reason is prevented, and even an unfamiliar caller can surely make the mobile station with the PAG mode set. You can call and contact them. That is, the serviceability of the system can be improved.

(5) When the self-applied message information is received in the PAG mode, the telephone number of the calling station included in this message information is stored in the RAM 24, and in this state, the TEL key 26d is pressed. When pressed,
Since the calling process is performed to the calling station based on the telephone number stored in the RAM 24, the calling source can be processed without the user having to dial the telephone number of the calling station. Stations can be called automatically.
Therefore, the calling operation can be performed extremely easily.

The present invention is not limited to the above embodiment. For example, as a means for designating and inputting the operation mode, a 3-position slide switch 29 as shown in FIG. 9 may be used. By doing so, it becomes possible to know the operation mode currently set from the position of the movable contact of the switch. Therefore, it is not necessary to display the operation mode being set on the LCD 28.
Also, switch this switch to the 3-position slide operation
If the switch is configured to be able to perform the position pushing operation, the switch can be used not only for setting the operation mode but also for stopping the ringing sound or vibration for the call notification in the PAG mode.

Further, in the above-mentioned embodiment, the device used in the portable radio telephone system adopting the analog modulation method has been described as an example, but it may be applied to the device used in the system adopting the digital modulation method.

Further, in the above-described embodiment, the case where the base station for the portable radio telephone is also used as the base station for the pager has been described as an example, but the base station for the portable radio telephone and the base station for the pager are It can also be applied to the case of separately configuring.

In addition, the gist of the present invention also relates to the circuit configuration and appearance of the apparatus, the configuration and arrangement position of the operation mode designating switch, the configuration of the circuit for the portable radio telephone and the circuit for the pager, the configuration of the power supply circuit system, and the like. Various modifications can be made without departing from the scope.

[0048]

As described above in detail, according to the present invention, in addition to the telephone communication circuit section for performing bidirectional wireless communication with the base station in response to a call or an incoming call, the above-mentioned base station or other Circuit section for selective call reception, which receives a selective call signal transmitted from the base station of the present invention via the second wireless line and notifies that a call has occurred when the selective call signal is a signal addressed to itself. And a mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes, and an operation control means. When the selective call mode is designated by the mode designation input means by the operation control means, the selective call receiving circuit section is set to the operating state, while the telephone communication circuit section is set to the non-operating state. It is something that is done.

Therefore, according to the present invention, it is possible to provide a mobile radio communication device which can significantly extend the usage time of the mobile radio communication device and can surely inform the user of an emergency contact or the like. it can.

Still another aspect of the present invention is the above-mentioned telephone communication circuit section, selective call receiving circuit section, and mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes. In addition, a mode change control means and an operation control means are provided. In the mode change control means,
When the remaining usable time corresponding to the remaining amount of the battery is detected and the remaining usable time becomes less than the predetermined time, the mode designated by the mode designation input means is canceled and the operation mode is changed to the selective calling mode. Control is performed to change. When the selective call mode is set as the operation mode by the mode designation input means or the mode change control means, the operation call means sets the selective call receiving circuit section to the operating state,
In addition, the telephone communication circuit section is set in a non-operating state.

Therefore, according to another aspect of the present invention, when the remaining amount of the battery is reduced, the communication mode of the low power can be automatically set, whereby the usage time of the device can be further extended. A wireless communication device can be provided.

In still another aspect of the present invention, in addition to the telephone communication circuit section, the selective call receiving circuit section, and mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes. A time information input means for inputting time information indicating a time or a time zone for setting the operation mode to the selective call mode, a mode change control means, and an operation control means. The mode change control means performs control to set the operation mode to the selective call mode when the time or time zone represented by the time information input by the time information input means comes. When the selective call mode is set as the operation mode by the mode designation input means or the mode change control means, the operation control means sets the selective call receiving circuit section in the operating state and the telephone communication is performed. The circuit section for use is set in a non-operating state.

Therefore, according to this another aspect of the present invention, it is possible to automatically set the communication mode of the low power without the user having to specify the mode each time, which effectively reduces the usage time of the apparatus. It is possible to provide a mobile radio communication device that can be extended and has excellent operability.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing a configuration of a mobile radio communication device according to an embodiment of the present invention.

FIG. 2 is a circuit block diagram showing a main configuration of an operation switch section of the apparatus shown in FIG.

FIG. 3 is a perspective view showing the outer appearance of a mobile wireless communication device according to an embodiment of the present invention.

4 is a flowchart showing a control procedure and control contents of mode setting control executed by a control circuit of the apparatus shown in FIG.

5 is an HHP executed by a control circuit of the apparatus shown in FIG.
The flowchart which shows the control procedure and control content of mode control.

6 is a PAG executed by a control circuit of the device shown in FIG.
The flowchart which shows the control procedure and control content of mode control.

FIG. 7 is a diagram showing the first half of a sequence when a call is made between a device in which the HHP mode is set and a device in which the PAG mode is set.

FIG. 8 is a diagram showing the latter half of the sequence when a call is made between a device in which the HHP mode is set and a device in which the PAG mode is set.

FIG. 9 is a perspective view showing the outer appearance of a mobile wireless communication device according to another embodiment of the present invention.

FIG. 10 is a schematic configuration diagram of a mobile wireless telephone system adopting a cellular system.

[Explanation of symbols]

11 ... Antenna 12 ... Antenna duplexer 13 ... Reception circuit (RX) 14 ... Changeover switch 15 ... Reception baseband circuit for mobile radio telephone 15a ... Demodulation circuit (DEM) 15b ... Earphone amplifier 15c ... Speaker 16 ... Base for pager Band circuit 16a ... Demodulation circuit (DEM) 16b ... Changeover switch 16c ... Sounder drive circuit 16d ... Sounder 16e ... Vibrator 17 ... Transmission system circuit 17a ... Microphone 17b ... Transmission amplifier 17c ... Modulation circuit (MOD) 17d ... Transmission circuit (TX) 18 ... Transmission path switch 21 ... Control circuit (CONT) 22 ... Frequency synthesizer 23 ... ROM 24 ... RAM 25 ... Timer (T
IM) 26 ... Operation switch section 26a ... HHP key 26b ... PAG key 26c ... OFF key 26d ... TEL key 27 ... Display drive circuit 28 ... Liquid crystal display (LCD) 31 ... Power supply circuit 32 ... Battery 33, 34 ... Power switch 35 ... Voltage detection circuit

Claims (3)

[Claims] 1. A base station is connected via a first wireless line capable of two-way communication, and a call is made with the base station via the first wireless line in response to a call or an incoming call. And a selective call signal transmitted from the base station or another base station via the second wireless line, and the selective call signal is A selective call receiving circuit section for notifying that a call has occurred when the signal is addressed to itself, and a mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes, In the state where the selective call mode is designated by the mode designation input means, the operation control means for setting the selective call receiving circuit section to the operating state and the telephone communication circuit section to the non-operating state. Equipped with A mobile wireless communication device. 2. A base station is connected via a first wireless line capable of two-way communication, and a call is made with the base station via the first wireless line in response to a call or an incoming call. And a selective call signal transmitted from the base station or another base station via the second wireless line, and the selective call signal is A selective call receiving circuit section for notifying that a call has occurred when the signal is addressed to itself, and a mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes, Detects the remaining usable time corresponding to the remaining battery level,
When the remaining usable time is less than a predetermined time, a mode change control means for canceling the mode designated by the mode designation input means and changing the operation mode to the selective call mode, and the mode designation When the selective call mode is set by the input means or the mode change control means, an operation for setting the selective call receiving circuit section in the operating state and setting the telephone communication circuit section in the non-operating state A mobile radio communication device comprising: a control unit. 3. A telephone is connected to a base station via a first wireless line capable of bidirectional communication, and a call is made with the base station via the first wireless line in response to a call or an incoming call. And a selective call signal transmitted from the base station or another base station via the second wireless line, and the selective call signal is A selective call receiving circuit section for notifying that a call has occurred when the signal is addressed to itself, and a mode designation input means for selectively designating a telephone mode and a selective call mode as operation modes, Time information input means for inputting time information representing a time or a time zone for setting the operation mode to the selective call mode, and a time or time zone represented by the time information input by the time information input means. Become In this case, when the selective call mode is set as the operation mode by the mode change control means for setting the operation mode to the selective call mode, and the selective call reception mode is set by the mode designation input means or the mode change control means. A mobile radio communication device comprising: an operation control means for setting a circuit section in an operating state and setting the telephone communication circuit section in a non-operating state.