JPH11219239A - Portable information terminal with communication function and method of operating the same - Google Patents

Abstract

(57) [Summary] A data processing unit and a telephone unit can be turned on and off separately, and only one of them is turned off by transmitting and receiving a control signal and a notification signal between the data processing unit and the telephone unit. To provide a portable information terminal with a communication function, which can maintain and reduce power consumption. A portable information terminal with a communication function includes a data processing unit, a telephone unit, and a power supply control unit that controls on / off of a power supply of the telephone unit based on a command from the data processing unit.
Starting control means for controlling release of the temporary stop of the data processing unit based on a notification signal from the telephone unit. With this configuration, even after the main switch is turned on, both the data processing unit and the telephone unit can be turned on, but if necessary, only the data processing unit can be activated and temporarily stopped in a state where it can be activated, Alternatively, only the telephone unit can be turned off, so that power consumption can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal with a communication function capable of reducing power consumption when not in use, and a method of operating the same.

[0002]

2. Description of the Related Art In recent years, portable information terminals having a communication function such as a telephone function have been used. Such a portable information terminal with a communication function includes a data processing unit, a telephone unit, and one CPU as control means for controlling the operations of the two function units. And a communication operation such as a telephone.

[0003]

However, in the conventional portable information terminal with a communication function as described above, when the switch is turned on, both the data processing section and the telephone section are turned on, and the apparatus enters a standby state. For example, in a hospital or the like, a switch must be turned off in a place where communication is prohibited, and even if it is desired to use only the data processing unit, it cannot be used because the power is turned off. Further, when the switch of the portable information terminal is turned on, power is supplied to the CPU even during the standby state, so that the power consumption is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to enable a data processing unit and a telephone unit to be separately turned on and off, and to control the data processing unit and the telephone unit between each other. An object of the present invention is to provide a portable information terminal with a communication function and a method of operating the portable information terminal, in which only one of them can be kept in an off state by transmitting and receiving a signal and a notification signal to reduce power consumption.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a portable information terminal with a communication function, comprising: a data processing unit; a telephone unit; and a telephone unit based on a command from the data processing unit. Power control means for performing power on / off control;
The gist of the present invention is that it comprises a start-up control means for controlling the release of the temporary operation stop of the data processing unit based on the notification signal from the telephone unit.

With this configuration, even after the main switch is turned on, both the data processing unit and the telephone unit can be turned on, but if necessary, only the data processing unit can be activated and the operation is temporarily stopped. Or only the telephone unit can be turned off, so that power consumption can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a portable information terminal with a communication function, a data processing unit, a telephone unit, and a power supply to the telephone unit based on a command from the data processing unit. Power control means for performing on / off control of the data processing section, and activation control means for performing on / off control of the power supply of the data processing section based on a notification signal from the telephone section. This has the effect that the power of the telephone unit can be turned on and off separately.

According to a second aspect of the present invention, in the portable information terminal with a communication function according to the first aspect, the data processing section and the telephone section each have their own control means. The processing operation of the telephone unit and the operation of the telephone unit can be performed independently.

According to a third aspect of the present invention, in the portable information terminal with a communication function according to the first aspect, the data processing unit and the telephone unit can be individually turned on and off. This has the effect that only one of the data processing unit and the telephone unit can be used according to the use environment, and the other can be turned off.

According to a fourth aspect of the present invention, in the portable information terminal with the communication function according to the first aspect, between the data processing unit and the telephone unit, the power of the telephone unit is turned on and off by data processing. This is performed by a control signal from a unit, and has an effect that power consumption can be controlled by controlling an on / off state by making one functional unit subordinate to the other functional unit.

According to a fifth aspect of the present invention, in the portable information terminal with a communication function according to the first aspect, the data processing unit has a temporary operation stop mode in addition to power on / off. There is an effect that the power consumption is reduced by cutting off the electrode supply to the data processing unit.

According to a sixth aspect of the present invention, in the portable information terminal with the communication function according to the fourth aspect, the data processing unit is provided with a power switch for interrupting power supply to the CPU of the data processing unit. CPU of the data processing unit
This has the effect of reducing power consumption by shutting off the electrode supply to the power supply.

According to a seventh aspect of the present invention, in the portable information terminal with the communication function according to the first aspect, a switch of the telephone unit in response to a control signal from the data processing unit for the telephone unit in an off state. Is turned on.
There is an effect that the ON / OFF switching between the data processing unit and the telephone unit can be easily performed depending on the use environment.

According to an eighth aspect of the present invention, in the portable information terminal with a communication function according to the first or second aspect, the data processing unit is activated by an incoming notification signal from the telephone unit. There is an effect that the activation from the temporary operation stop state can be automatically executed.

According to a ninth aspect of the present invention, in the portable information terminal with the communication function according to the first or second aspect, the data processing unit which is temporarily stopped between the data processing unit and the telephone unit is provided. On the other hand, a start control unit for starting the data processing unit in response to an incoming notification signal from the telephone unit is provided, and has an effect that the start from the temporary operation stop state can be automatically and quickly executed.

According to a tenth aspect of the present invention, in a portable information terminal with a communication function, the operation of the telephone section is performed by the data processing section in the portable information terminal with a communication function comprising a data processing section and a telephone section. Under the control of the telephone unit, the power of the telephone unit is turned on and off by a control signal from the data processing unit, and the power consumption is controlled by managing the on / off operation of the telephone unit by the data processing unit. Has the effect of being able to.

According to an eleventh aspect of the present invention, in the portable information terminal with the communication function according to the tenth aspect, the data processing unit and the telephone unit are provided with their own control means. During the standby process, the data processing unit has an effect of executing an application process.

According to a twelfth aspect of the present invention, in the portable information terminal with a communication function according to the eleventh aspect, when an incoming call is received during the processing operation of the data processing unit, the telephone unit interrupts the data processing unit. The processing is executed, and has the effect of appropriately matching processing operations.

According to a thirteenth aspect of the present invention, in the portable information terminal with the communication function according to the eleventh aspect, the data processing unit is set to the on state and the telephone unit is set to the off state, and the application processing of the data processing unit is performed. It can be executed and has the effect that it can be utilized without turning off the entire device according to the use environment.

According to a fourteenth aspect of the present invention, in the portable information terminal with a communication function according to the eleventh aspect, the data processing unit is set to a temporarily stopped state and the telephone unit is set to an on state, and the data processing unit is set to Power supply is reduced.

According to a fifteenth aspect of the present invention, in the portable information terminal with a communication function according to the fourteenth aspect, when an incoming call is received while the data processing unit is in a temporarily stopped state,
The data processing unit is activated by interruption processing from the telephone unit side, and has an effect that activation of the data processing unit from the temporarily stopped state can be executed automatically and quickly.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a portable information terminal with a communication function according to an embodiment of the present invention. In this figure, reference numeral 1 denotes a data processing unit (PDA: personal data processor) for processing various data by CPU operation.
Array), 2 is a telephone unit (CMT: Cellular Mobile Terminal) that performs a communication operation under the control of the data processing unit 1, and 3 is a data processing unit 1 connected between the data processing unit 1 and the telephone unit 2. A telephone unit power control means 4 for controlling the power supply of the telephone unit 2 to be turned on and off in accordance with a control signal from the telephone unit 2 is connected between the data processing unit 1 and the telephone unit 2 and a data processing unit 1 Is a serial line connected between the data processing unit 1 and the telephone unit 2 for transmitting and receiving command data between the data processing unit 1 and the telephone unit 2. An interrupt signal line 6 for inputting an interrupt signal to the data processing unit 1 between the data processing unit activation control means 4 and the data processing unit 1 and a data processing unit activation signal for activating the data processing unit 1 Connected by a line 7. The data processing unit 1 includes a power supply unit 8 for supplying power on the data processing unit 1 side, a power switch 9 for turning on and off the power supply, a telephone unit control drive unit 10 for driving the telephone unit power control unit 3, Is provided. The telephone unit 2 includes a power supply unit 11 for supplying power on the telephone unit 2 side, a power switch 12 for turning on and off the power supply, and a data processing unit activation drive unit 13 for driving a data processing unit activation control unit.
Are provided.

The data processing section 1 has a CPU as control means for controlling the operation of the entire data processing section 1.
14, the telephone unit 2 also has a CP as a control means for controlling the operation of the telephone unit 2 as a whole.
U15 is provided. In this embodiment, the CP
A microcomputer is used for U14 and U15.
The CPU 14 of the data processing unit 1 has a memory for storing state information of the data processing unit 1 when the data processing unit 1 enters a temporary operation stop state (a state corresponding to a suspend or sleep mode described later). Is provided. The CPU 15 of the telephone unit 2 has a memory for storing communication-related master data such as the own station number (own telephone number, ID number, etc.) of the portable information terminal with a communication function according to the present embodiment. Provided. The portable information terminal with a communication function is provided with a main switch (not shown) for switching on and off the entire terminal device in addition to the power switches 9 and 12.

The operation of the portable information terminal with a communication function having the above configuration will be described below. FIG. 2 is a table illustrating the ON, OFF, or pause relationship between the data processing unit 1 and the telephone unit 2 in the present embodiment. First,
When the main switch is off, both the data processing unit 1 and the telephone unit 2 are off (state a). Next, when the main switch is turned on from the off state, the power switch 9 of the data processing unit 1 is turned on, and the telephone unit control drive unit 10 controls the power on by the operation of the CPU 14 of the data processing unit 1. When the signal is output, the telephone section power control means 3 operates to turn on the power switch 12 of the telephone section 2. Thereby, the data processing unit 1 and the telephone unit 2
Are turned on (state d). In this state, the data processing unit 1 can perform a data processing operation, and the telephone unit 2 is in a state capable of talking.
Since the link establishment process and the standby process are performed by the operation 5, the portable information terminal with a communication function is in a standby state while operating the data processing unit 1.

Next, when it is desired to use only the data processing unit 1, when a command to turn off the telephone unit 2 is input, a power-off control signal is output from the telephone unit control drive unit 10 of the data processing unit 1 to control the telephone unit power supply. The means 3 operates to turn off the power switch 12 of the telephone unit 2 (state b). When the telephone unit 2 is turned off and the data processing unit 1 is to be temporarily stopped in a startable state (hereinafter, this state is referred to as “suspend”), the power switch 9 of the data processing unit 1 is turned off. When an instruction is input, the CPU 14 of the data processing unit 1
Is the data processing unit 1 when the power switch 9 is turned off.
After the state information is stored in the memory, the power supply to the CPU 14 of the data processing unit 1 is stopped (state c). On the other hand, when the data processing section 1 is to be temporarily stopped in a startable state and only the telephone section 2 is to be used, the power switch 9 of the data processing section 1 is turned off while the data processing section 1 and the telephone section 2 are in the standby state. Upon the OFF operation, the CPU 14 stores the state information of the data processing unit 1 at the time of the OFF operation of the power switch 9 in the memory and then stops the power supply to the CPU (state e). As a result, the telephone unit 2 is turned on, and the data processing unit 1 is suspended.

In the following, the data processing unit 1 and the telephone unit 2
A description will be given of an example of the operation of transition processing between the above states.

Operation Example 1: Transition from Power-On to Standby State FIG. 3 is a flowchart illustrating a processing operation for transitioning from the power-on state to the standby state. In this case, first, the data processing unit 1
Is turned on. This power-on is executed by the ON operation of the main switch. When this processing operation is started, a processing step (hereinafter simply referred to as a step) ST1 is performed.
In step 1, the data processing unit 1 is initialized by the CPU 14 on the data processing unit 1 side, and in step ST12, normal processing on the data processing unit 1 side, that is, input / output processing based on a user request is performed.
The user request includes various processing requests such as a data processing request or a power-on request for the telephone unit 2. Next, in step ST13, a check process is performed to determine whether or not the telephone unit 2 has been requested to be turned on as a user request. If there is no ON request for the telephone unit 2 in this check process, the process returns to step ST12 to return to the process in step ST12.
The processes of steps ST12 to ST13 are repeated until there is a request to turn on. If it is determined in step ST13 that the telephone unit 2 has been requested to be turned on, then in step ST14, the command to turn on the telephone unit 2 is issued to the data processing unit 1.
From the CPU. Thereby, step ST1
In step 5, a power-on control signal is output from the telephone-unit control drive unit 10 to activate the telephone-unit power control means 3, and in step ST16, the power switch 12 of the telephone unit 2 is turned on.

In the telephone unit 2 whose power is turned on, the CPU 15 performs initialization processing of the telephone unit 2 in step ST17, and then outputs a link establishment request command to the data processing unit 1 in step ST18. This link establishment request command is transmitted through the serial line 5
Transmitted through. Upon receiving the link establishment request command in step ST19, the data processing unit 1 transmits a link establishment response command to the telephone unit 2 in step ST20 after executing a link establishment process, and the telephone unit 2 determines in step ST21. This link establishment response command is received. The own number of the portable information terminal with communication function according to the present embodiment (own telephone number, I
Communication-related master data such as a D number) is held in the telephone unit 2, and master data is exchanged between the data processing unit 1 and the telephone unit 2 in this link establishment processing. The data processing unit 1 transmits a master data inquiry command to the telephone unit 2 in step ST22, and the telephone unit 2 receives this master data inquiry command in step ST23. Next, telephone section 2
Transmits master data to the data processing unit 1 in step ST24, and the data processing unit 1
At 25, the master data is received. Further, in step ST26, the telephone unit 2 transmits state notification data to the data processing unit 1 indicating that the own unit is waiting, and the data processing unit 1 receives this state notification data in step ST27. As described above, the state shifts to the standby state (state d) in which both the data processing unit 1 and the telephone unit 2 are on.

Operation Example 2: Transition from Standby to Transmission Operation FIG. 4 is a flowchart for explaining the processing operation of transitioning from standby to transmission operation. When this processing operation starts,
In the data processing unit 1 side, in step ST31, normal processing of the data processing unit 1 side, that is, input / output processing based on a user request is executed. Next, in step ST32, a check process is performed to determine whether or not there is a call request to the telephone unit 2. If there is no call request to the telephone unit 2 in this check process, the process returns to step ST31 until a call request to the telephone unit 2 is received. The processing of steps ST31 to ST32 is repeated. If it is determined in step ST32 that a call request has been made to the telephone unit 2, a call request command is output to the telephone unit 2 in step ST33. On the other hand, in telephone section 2, the standby processing is performed in step ST34, and the reception state confirmation processing in data processing section 1 is performed in step ST35 in response to the output of the transmission request command from data processing section 1 side.

Next, the telephone section 2 checks whether or not a call request command has been received in step ST36. If it is determined in this check process that the call request command has not been received, the process returns to step ST34, and the above-described processes in steps ST34 to ST36 are repeated until there is a call request from telephone unit 2. If it is determined in step ST36 that a call request has been made to the telephone unit 2, the telephone unit 2 executes a calling process in step ST37, and in step ST38, the own machine is in a call with the data processing unit 1. The data processing unit 1 transmits state notification data indicating that there is, and receives this state notification data in step ST39. As a result, the state of the telephone unit 2 is shifted to the busy state (state d).

Operation Example 3: From standby to transition to suspend only in data processing unit FIG. 5 and FIG. 6 are flow charts for explaining a processing operation to transition from suspend to transition to suspend only in the data processing unit.
Among these figures, FIG. 5 is a flowchart showing processing in the data processing unit 1 and FIG. 6 is a flowchart showing processing in the telephone unit 2. When this processing operation is started, in the data processing section 1, as shown in FIG. 5, in step ST41, normal processing on the data processing section 1 side, that is, input / output processing based on a user request is executed. Next, step ST42
In step ST41, a check is performed to determine whether or not the data processing unit 1 has been turned off.
The processing of steps ST41 to ST42 is repeated until there is a request to turn off the data processing unit 1. When it is determined in step ST42 that there has been a request to turn off the data processing unit 1, the state saving process of the data processing unit 1 is executed in step ST43, and the data processing unit 1 at the time when the request to turn off the data processing unit 1 is made. Is stored in the memory of the data processing unit 1. Then, in the data processing unit 1, the power supply to the CPU 14 is stopped, and the data processing unit 1 enters a suspend or sleep state. As a result, the power consumption of the data processing unit 1, particularly the power consumed by the CPU 14, is reduced.

On the other hand, in the telephone section 2, step ST
In step 44, a standby process is performed, then, in step ST45, a reception state confirmation process from the data processing unit 1 is performed, and thereafter, the process returns to step ST44 to repeat the processes in steps ST44 to ST45.
As described above, the data processing unit 1 continues the standby process in the suspend or sleep state (state e).

Operational Example 4: From Standby to Incoming Call FIG. 7 is a flowchart for explaining a processing operation for shifting from a waiting state to an outgoing call operation. When this processing operation starts,
On the data processing unit 1 side, when the data processing unit 1 is in the ON state, in step ST51, the data processing unit 1 executes normal processing of the data processing unit 1, that is, input / output processing based on a user request. . Next, in step ST52, it is checked whether or not an interruption has been made by the interruption notification from the telephone unit 2. On the other hand, if the data processing unit 1 is in the suspended state, the process proceeds to step ST5.
In step 3, the data processing unit activation control means 4 executes the activation process in response to the interrupt notification from the telephone unit 2. In response to the activation process, the data processing unit 1 is activated, performs a state restoration process in step ST54, and then performs a check process in step ST52. Step ST52
If it is determined in the check process that there is no interrupt, the process returns to step ST51, and the processes of steps ST51 to ST52 are repeated until there is an interrupt. If it is determined in step ST52 that there is an interrupt, the telephone unit 2 is determined in step ST55.
Then, a cause inquiry transmission of what is the cause of the interrupt is performed.

On the other hand, in the telephone section 2, step ST
At 56, a standby process is performed, and then at step ST
At 57, it is checked whether there is an incoming call. If there is no incoming call in this check processing, step ST
Returning to the process of 56, step ST56 until there is an incoming call
To 57 are repeated. If it is determined in step ST57 that there is an incoming call, in step ST58, an interrupt notification is sent to the data processing unit 1 to start the data processing unit activation control process in step ST53. Thereafter, the telephone unit 2 receives the factor inquiry transmission from the data processing unit 1 in step ST59, and then transmits the factor response to the data processing unit 1 in step ST60. In this factor response transmission, for example, various factors such as an incoming call are transmitted as data.

In step ST61, the data processing section 1 receives the above-mentioned factor response, and then checks in step ST62 whether or not the interrupt factor is due to an incoming call. If it is determined in this check process that the factor is not an incoming call (e.g., mail reception notification, low voltage warning, etc.), a processing operation according to other factors is performed in step ST63. Further, the data processing unit 1 executes step ST
If it is determined in the check process at 62 that the cause is an incoming call, a call request is transmitted to the telephone unit 2 in step ST64, and the telephone unit 2 proceeds to step ST65.
Receives the call request. Thereafter, the telephone unit 2 performs a call start process in step ST66, and transmits state notification data such as "calling" to the data processing unit 1 in step ST67. The data processing unit 1 receives this status notification data in step ST68. As described above, the data processing unit 1 and the telephone unit 2
Are turned on, and the state shifts to a state in which a call is being made (state d).

Operation Example 5: During Call-End of Call Request from Data Processing Unit FIG. 8 is a flow chart for explaining a processing operation for shifting from a call to an end-of-call request from the data processing unit 1 side. When this processing operation is started, in step ST71, the data processing unit 1 executes normal processing on the data processing unit 1, that is, input / output processing based on a user request. Next, in step ST72, a check process is performed to determine whether or not there is a call termination request from the user. When it is determined in this check process that there is no call termination request from the user, the process returns to step ST71, and there is the above-mentioned call termination request. Until the above, the processing of steps ST71 to ST72 is repeated. Then, when it is determined in step ST72 that the user has made a call termination request, a data termination request command is transmitted from the data processing unit 1 to the telephone unit 2 in step ST73.

On the other hand, in the telephone section 2, step ST
At 74, a telephone call process is performed, followed by step ST7.
At 5, the reception status confirmation processing from the data processing unit 1 is performed. During this reception confirmation process, a call termination request from the data processing unit 1 can be received. In step ST76, the telephone unit 2 checks whether or not a call termination request has been received. If it is determined in this check process that the call termination request has not been received, the process returns to step ST74, and the call termination request is returned. Steps ST74 to ST74 until reception of
Step 6 is repeated. If it is determined in step ST76 that the call termination request has been received, the process proceeds to step S76.
At T77, a call termination process is executed, and furthermore, a step S
At T78, for example, a status notification “waiting” is transmitted from the telephone unit 2 to the data processing unit 1. The data processing unit 1 receives the status notification data transmitted from the telephone unit 2. As described above, the state shifts to the standby state (state d) in which both the data processing unit 1 and the telephone unit 2 are on. As described above, since the separate CPUs 14 and 15 are provided between the data processing unit 1 and the telephone unit 2, the data processing unit 1 can execute an application even during a call.

Operation Example 6: During Communication-End Call Request from Network Side FIG. 9 is a flowchart for explaining the processing operation for shifting from during communication to an end call request from the network side. When this processing operation is started, on the data processing unit 1 side, when the data processing unit 1 is in the ON state, in step ST81, the data processing unit 1 performs the normal processing of the data processing unit 1, ie, Based input / output processing is performed. Next, in step ST82, it is checked whether or not an interruption has been made by the interruption notification from the telephone unit 2. On the other hand, when the data processing unit 1 is in the suspended state, the activation process by the data processing unit activation control means 4 is executed by the interruption notification from the telephone unit 2 in step ST83, and then the interruption check process in step ST52 is performed. If it is determined that there is no interruption in the check processing of step ST52, the process proceeds to step ST52.
Returning to the process of 81, step ST is performed until there is an interrupt.
The processing of 81 to 82 is repeated. If it is determined in step ST82 that there is an interrupt, a factor inquiry is transmitted to the telephone unit 2 in step ST84 as to what is the cause of the interrupt.

On the other hand, in the telephone section 2, step ST
In step 85, a standby process is performed, and then in step ST
At 86, it is checked whether there is a disconnection request from the network. If there is no disconnection request from the network in this check processing, the process returns to step ST85, and repeats the processing of steps ST85 to ST86 until there is a disconnection request from the network. If it is determined in the check processing of step ST86 that there is a disconnection request from the network, the call termination processing is performed in step ST87, and then step S87 is performed.
At T88, an interrupt notification is sent to the data processing unit 1 to start the data processing unit activation control process in step ST83. Thereafter, the telephone unit 2 proceeds to step ST8.
9, a factor inquiry transmission from the data processing unit 1 is received, and then in step ST90, the data processing unit 1
Is transmitted. In this factor response transmission, various factors such as, for example, a disconnection request from the network, that is, a call termination request, are transmitted as data.

In step ST91, the data processing section 1 receives the above-mentioned factor response, and then checks in step ST92 whether or not the interrupt factor is due to the end of the call. If it is determined in this check process that the factor is not the end of the call, a processing operation according to other factors is performed in step ST93. The telephone unit 2 is in step ST
In step 94, since the call termination processing has been completed in step ST87, status notification data such as "waiting" is transmitted to the data processing unit 1 in step ST94. On the other hand, when it is determined in the check processing of step ST92 that the factor is the end of the call, the data processing unit 1 receives the state notification data transmitted from the telephone unit 2 in step ST95. As described above, both the data processing unit 1 and the telephone unit 2 are turned on, and the state shifts to the standby state (state d).

Operation Example 7: From standby to power-off of telephone unit FIG. 10 is a flowchart for explaining a processing operation of shifting from power-off of the telephone unit to power-off of the telephone unit. When this processing operation is started, in step ST101, the data processing unit 1
On the data processing unit 1 side, normal processing, that is, input / output processing based on a user request, and the like are executed. Then step S
At T102, a check process is performed to determine whether or not the user has requested the power of the telephone unit 2 to be turned off. When it is determined in this check process that there is no request to turn off the power of the telephone unit 2, the process returns to step ST101, The processes in steps ST101 to ST102 are repeated until there is a power-off request of the telephone unit 2 from the user. Then, when it is determined in step ST102 that the user has issued a power-off request for the telephone unit 2, a power-off command for the telephone unit 2 is transmitted from the data processing unit 1 to the telephone unit 2 in step ST103.

On the other hand, in the telephone section 2, step ST
In step 104, a standby process is performed, and in step ST105, a reception state confirmation process from the data processing unit 1 is performed. During this reception confirmation processing, the power off of the telephone unit 2 from the data processing unit 1 can be received. In step ST106, the telephone unit 2 checks whether or not a power-off command for the telephone unit 2 has been received. If it is determined in this check process that the power-off command for the telephone unit 2 has not been received, the process proceeds to step ST104. Returning to the processing, the processing of steps ST104 to ST106 is repeated until the power-off command of the telephone unit 2 is received.
If it is determined in step ST106 that the power-off command of the telephone unit 2 has been received, the process proceeds to step S106.
At T107, the power supply of the telephone unit 2 is turned off.
As described above, while the data processing unit 1 is in the ON state, the telephone unit 2
Is shifted to the power-off state (state b) by itself, and only the data processing unit 1 can be used in a call prohibition area in a hospital or the like.

Operation Example 8: Powering off the telephone unit alone to powering off the data processing unit FIG. 11 is a flowchart for explaining the processing operation for shifting from powering off the telephone unit alone to powering off the data processing unit. When this processing operation is started, in step ST111, the data processing unit 1 performs a normal process on the data processing unit 1, that is, an input / output process based on a user request. Next, in step ST112, a check process is performed to determine whether or not the user has made a request to turn off the power of the data processing unit 1. If it is determined in this check process that there is no request to turn off the power of the data processing unit 1, the process proceeds to step ST111. Returning to the processing, the processing of steps ST111 to ST112 is repeated until there is a power-off request of the data processing unit 1. Then, when it is determined in step ST112 that the user has requested the power-off of the data processing unit 1, the power-off process of the data processing unit 1 is executed in step ST113. On the other hand, in the telephone section 2, the power remains off as described in the operation example 7 above. As described above, both the data processing unit 1 and the telephone unit 2 shift to the off state (state a).

[0044]

As described above, according to the present invention,
A data processing unit, a telephone unit, a first power supply control unit for controlling on / off of the power to the telephone unit based on a command from the data processing unit, and a notification from the telephone unit. And a second power supply control means for controlling the activation of the power supply of the data processing unit based on the signal, and by transmitting / receiving signals between the data processing unit and the telephone unit, turning on / off the power supply or shifting to the suspend state and After the main switch is turned on, both the data processing unit and the telephone unit can be turned on even if the main switch is turned on. Or only the telephone unit can be turned off, so that it can be used in an area where use is limited and power consumption can be reduced. Say the effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a portable information terminal with a communication function according to an embodiment of the present invention.

FIG. 2 is a table illustrating an ON, OFF, or pause relationship between a data processing unit and a telephone unit of the portable information terminal with a communication function in the embodiment.

FIG. 3 is a flowchart for explaining a processing operation of the portable information terminal with a communication function in the embodiment for shifting from a power-on state to a standby state;

FIG. 4 is a flowchart for explaining a processing operation of the portable information terminal with a communication function in the embodiment, which shifts from a standby state to a transmission operation.

FIG. 5 is a flowchart illustrating a processing operation of the data processing unit when only the data processing unit shifts to the suspend mode from the standby state of the portable information terminal with a communication function in the embodiment.

FIG. 6 is a flowchart for explaining the processing operation of the telephone unit when only the data processing unit shifts to the suspend mode from the standby state of the portable information terminal with a communication function in the embodiment.

FIG. 7 is a flowchart for explaining a processing operation of the portable information terminal with a communication function according to the embodiment for shifting from a standby state to a transmission operation.

FIG. 8 is a flowchart for explaining a processing operation of the portable information terminal with a communication function in the embodiment for shifting from a call in progress to a call termination request from the data processing unit side;

FIG. 9 is a flowchart for explaining a processing operation for shifting from a communication operation of the portable information terminal with a communication function to a call termination request from the network side in the embodiment.

FIG. 10 is a flowchart for explaining a processing operation for shifting from a standby state of the portable information terminal with a communication function to a power-off state of the telephone unit in the embodiment.

FIG. 11 is a flowchart for explaining a processing operation of the portable information terminal with a communication function according to the embodiment for shifting from the telephone unit power off to the data processing unit power off.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Data processing part 2 Telephone part 3 Telephone part power control means 4 Data processing part activation control means 5 Serial line 6 Interrupt signal line 7 Data processing part activation signal line 7 8, 11 Power supply 9, 12 Switch 10, 13 File 14, 15 CPU

Claims (15)

[Claims] 1. A data processing unit, a telephone unit, a first power supply control unit for controlling on / off of the power supply to the telephone unit based on a command from the data processing unit, and a notification signal from the telephone unit. A portable information terminal with a communication function, comprising: activation control means for performing on / off control of the power of a data processing unit based on the information. 2. The portable information terminal with communication function according to claim 1, wherein the data processing section and the telephone section each have their own control means. 3. The portable information terminal with communication function according to claim 1, wherein the power supply of the data processing unit and the telephone unit can be turned on and off separately. 4. Between the data processing unit and the telephone unit,
2. The portable information terminal with a communication function according to claim 1, further comprising a power control means for turning on / off the power of the telephone unit by a control signal from the data processing unit. 5. The data processing unit has a temporary operation stop mode in addition to power on / off.
A portable information terminal with a communication function as described. 6. A data processing unit, comprising:
The portable information terminal with a communication function according to claim 4, further comprising a power switch that shuts off power supply to the U. 7. The portable information terminal with a communication function according to claim 1, wherein a switch of the telephone unit is turned on by a control signal from the data processing unit side with respect to the telephone unit in an off state. 8. The portable information terminal with a communication function according to claim 1, wherein the data processing unit activates the data processing unit in response to an incoming notification signal from the telephone unit. 9. Between the data processing unit and the telephone unit,
3. The portable information with communication function according to claim 1, further comprising: a start control unit for activating the data processing unit in response to an incoming notification signal from the telephone unit for the data processing unit that is temporarily stopped. Terminal. 10. A portable information terminal with a communication function comprising a data processing unit and a telephone unit, wherein the operation of the telephone unit is controlled by the data processing unit, and the power of the telephone unit is turned on and off by the data processing unit. Operating method of a portable information terminal with a communication function, which is performed by a control signal from a personal computer. 11. The communication function according to claim 10, wherein each of the data processing unit and the telephone unit has its own control means, and the data processing unit can execute application processing during standby processing of the telephone unit. How to operate a portable information terminal. 12. The operation of the portable information terminal with a communication function according to claim 11, wherein an interruption process is executed from the telephone unit to the data processing unit when an incoming call is received during the processing operation of the data processing unit. Method. 13. The operation of the portable information terminal with a communication function according to claim 11, wherein the data processing unit is set to an on state and the telephone unit is set to an off state, so that the data processing unit can execute an application process. Method. 14. The portable information terminal with a communication function according to claim 11, wherein the data processing unit is set to a temporarily stopped state and the telephone unit is set to an on state to reduce power supply to the data processing unit. Operation method. 15. The data processing unit according to claim 1, wherein when there is an incoming call while the data processing unit is temporarily stopped, the data processing unit is activated by an interrupt process from the telephone unit.
4. The method for operating the portable information terminal with communication function according to 4.