JP2001186566A - Communication system and communication method between mobile terminal and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of a response with respect to a call of a mobile terminal through the interlocking between the mobile terminal and a computer, in a system where communication is attained between the mobile terminal and the computer. SOLUTION: A mobile terminal 200 being called through a telephone line is detected, and when this call is continued for a fixed time interval, a PC 10 able to be communicated with the mobile terminal is retrieved and the mobile terminal informs the PC about a state change, such as occurrence of a call. The PC receiving this notice executes a predetermined function such as display of occurrence of a call to the mobile terminal onto a display device. If a user is in the midst of PC operation, even if the user is not noticed of a ring tone or vibration of the mobile terminal, the user can confirm the generated call to the mobile terminal and the user can respond to the call of the mobile terminal without omission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system capable of performing communication between a portable terminal such as a personal information terminal or a portable telephone, and a device such as a computer or a peripheral device thereof, and the portable terminal and the device. And how to communicate with it.

[0002]

2. Description of the Related Art In recent years, notebook-type personal computers (hereinafter referred to as PCs), PCs, and PDAs (Peers
rsonal Digital (Data) Assistants) and personal information terminals and mobile phones (hereinafter collectively referred to as mobile terminals)
Is connected wirelessly to operate a PC from a mobile terminal,
A technology for supporting data transfer between C and a portable terminal is being studied. As a specific usage image, a connection between a PC in a bag and a mobile phone is considered. For example, a PC in a standby state in a bag is woken up from a mobile phone at hand of a user, and a mobile phone is woken up. There has been considered a usage form in which data such as a received mail managed by a PC is called from a telephone and the contents are viewed on a display of a mobile phone.

[0003]

By the way, as a general problem in a portable terminal such as a personal information terminal or a portable telephone, for example, when the portable terminal is stored in a bag, the noise caused by the surrounding noise or the like may cause a problem. The user may not notice the ringing tone or vibration of the mobile terminal, and the telephone call may be terminated unattended. That is, there is a case where the user fails to answer the call while being able to answer the call or while waiting for an incoming call. There is no solution to the above-mentioned omission in response to the call of the portable terminal even in the above-described system that enables communication between the PC and the portable terminal.

The present invention has been made to solve such a problem, and a communication system capable of reducing omission of a response to a call of a mobile terminal by cooperating with a mobile terminal such as a mobile phone and a device such as a computer. It is an object to provide a system and a communication method between a mobile terminal and a device.

[0005] Further, the present invention provides a communication system for eliminating omission of a response to a call of a portable terminal by notifying a user of a call to the portable terminal on a device such as a computer, and a communication between the portable terminal and the device. The aim is to provide a method.

[0006] Further, the portable terminal usually has an answering machine function, but the memory capacity available for recording by the answering machine function is usually limited to about several tens to several hundreds of kilobytes. I have. Therefore, the present invention provides a communication system that can greatly ease the limitation of the number of recorded messages by using a large-capacity storage device such as a hard disk of a computer capable of communicating with a portable terminal for recording of an answering machine function. It is intended to provide a communication method between a device and a device.

[0007]

In order to achieve the above object, the present invention relates to a communication system for communicating between a portable terminal and a device, wherein the portable terminal detects a change in the state of the portable terminal. Means, search means for searching for a device communicable with the mobile terminal based on the result detected by the detection means, and notification issuing means for issuing a predetermined notification to the device searched by the search means. The apparatus further comprises a function executing means for executing a predetermined function in response to the notification issued from the portable terminal.

In the present invention, the portable terminal detects a change in state such as a call from a telephone line or the like. When a certain time condition for the state change is satisfied, such as when the state change continues for a certain period of time, searching for a device such as a computer that can communicate with the mobile terminal,
A notification corresponding to a change in state such as occurrence of a call to the mobile terminal is issued to the searched device. Upon receiving this notification, the device executes a predetermined function. For example, the fact that the state change has occurred is displayed on the display of the computer, and the user is notified of the fact. At this time, if the user is operating the computer, it is possible to know that the mobile terminal is calling on the computer without noticing the ringing sound or vibration of the mobile terminal, and to call the mobile terminal. Can be responded to without any omission.

Further, the present invention can be configured so that a user can set in advance a function to be executed by a device when a change in state is notified from a portable terminal. For example, when the user is absent, the current schedule of the user is read aloud on a computer, the voice information is transferred to the mobile terminal,
There is a method in which a portable terminal responds to a calling side with a voice read out of a schedule through a line.

[0010] Further, a configuration may be adopted in which, when a change in state is notified from the portable terminal, the user is allowed to select a specific response method on the computer on the spot. For example, when a change in state is notified from the portable terminal, the voice may be exchanged with the calling side using a voice input / output device on the computer. Further, a voice message from the calling side may be recorded by an answering machine function implemented on the computer. According to this method, a large-capacity storage device such as a hard disk of a computer can be used for recording of an answering machine function.
The limit on the number of recorded messages can be greatly eased.

Note that the device that communicates with the portable terminal is not limited to a computer. For example, it may be a personal information terminal such as a PDA or a peripheral device of a computer.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of an embodiment of the present invention.
As shown in FIG. 1, the present embodiment is a notebook-type personal computer (hereinafter referred to as P
Called C. ) 100 and a mobile phone 200 capable of communicating with the PC 100. As a communication interface between the PC 100 and the mobile phone 200, Bluetooth which is a wireless communication standard of a 2.45 GHz band is used.
Is used.

FIG. 2 shows a software configuration of the PC 100. Software in the PC 100 is roughly classified into a software group constituting the PC engine unit 101 and a software group mounted on the wireless module 102.

The software group mounted on the wireless module 102 includes LMP (Li) for controlling a wireless link.
nk Management Protocol) 103 and PC engine unit 1
HCI (Host Control)
ol Interface) 104 and the like.

The PC engine unit 101 is a Microsoft W
OS 105 such as Windows, a Bluetooth protocol driver group 106, an HCI 107 for communicating with the wireless module 102, and a USB driver 108 necessary when the wireless module 102 is connected via a USB interface.
It is composed of The interface with the wireless module 102 is a USB or a PC card (PCMCIA).
And the like, and PCI can be used. In this case as well, it is necessary to mount a driver corresponding to each interface.

Further, as software of the PC engine unit 101, the PC 1 responds to a request from the mobile phone 200.
A mobile phone communication program 109 for communicating with the following applications resident at 00 is installed. The application includes a message recording / reproducing unit 111 that records and reproduces a voice message, a schedule program 110 that performs a schedule, a schedule reader 112 that reads out the contents of the schedule passed from the schedule program 110, and the like. I have.

Next, the hardware configuration of the PC 100 will be described. As shown in FIG. 1, the PC 100 is a PC
It comprises a main body 131 and an LCD panel unit 181 which is attached to the PC main body 131 so as to be openable and closable.

FIG. 3 is a block diagram showing the overall hardware configuration of the PC 100. As shown in the figure, the PC main body 131 operates by receiving power supply from an external power supply 133 such as an AC commercial power supply via a battery 132 or an AC adapter. The PC body 131 includes a system bus 141, a CPU 142, a system controller 143, a memory 144, a BIOS-ROM 145, a magnetic disk drive (HDD) 146, a real-time clock (RTC) 147, and a keyboard controller (KB).
C) 148, embedded controller 149, power supply controller 150, VGA controller 151, video RA
An M (VRAM) 152, a USB controller 153, a power supply circuit 154, and the like are mounted.

[0020] Further, the mobile phone 200 using Bluetooth is used.
The wireless module 102 that communicates with the
It is composed of a module 160 and an antenna unit 161.

The Bluetooth module 160 has an RF unit,
A baseband unit, a memory unit, a crystal calling unit, and the like are incorporated. Bl so that the Bluetooth module 160 can operate even when the power of the PC body 131 is off.
The uetooth module 160 is supplied with power from a power supply system independent of the PC main body 131. In order to transmit the wake-up request sent from the mobile phone 200 to the PC main unit 131, the wireless module 102
It is also connected to the embedded controller 149 of the main body 131.

Further, a voice input / output device 170 such as a microphone or a speaker is built in the PC main body 131. VG
The A controller 151 has an LCD panel unit 181
Connected to the LCD 155 inside.

Next, the software configuration of the mobile phone 200 will be described. As shown in FIG. 4, software of the mobile phone 200 is roughly classified into software constituting the mobile phone engine unit 201 and software installed in the wireless module 202.

The wireless module 202 includes an RF unit 203 and a baseband unit 204 as hardware devices. The mobile phone 2 is provided on the baseband unit 204 by radio waves.
LMP 205 that forms a wireless link with the wireless communication device on the side of 00, HCI 206 that communicates with the mobile phone engine unit 201 via, for example, a serial interface
Has been implemented.

The mobile phone engine unit 201 includes an RF unit 207 and a baseband unit 20 which are mounted on a mobile phone as standard.
8. Mobile phone protocol stack 209, Bluetooth wireless protocol stack 212, wireless module 202
HCI that communicates with a serial interface
210 and an application 211 for communicating with the mobile phone communication program 109 on the PC side are mounted.

Next, the Bluetooth specification will be briefly described. The data is TDD (Time
-Division Duplex) Frequency hopping is used, in which packets are transferred in a system and the frequency changes for each packet. Using the same frequency hopping sequence, a single master and up to seven slaves form a piconet and perform communication. There are two types of data channels, an asynchronous data channel (ACL) and a synchronous voice channel (SC0). SC0 can use up to three channels at 64 Kbps per channel. For more information on Bluetooth specifications, see the Specification of the Bluetooth System Ve
See rsion 1.0A.

In Bluetooth, when a terminal that wants to communicate does not know the address of a remote terminal, Inquiry is performed to collect information necessary for establishing a connection. The device address and clock information of all terminals that respond to the inquiry can be collected. Then, by using these pieces of information, it is possible to actually establish a connection in the subsequent processing called Page. Also, if your device allows you to be discovered by other devices,
The terminal that performs Inquiry Scan to respond to the Inquiry message and waits for a connection establishment request
Page Scan is performed to respond to ge.

When performing Inquiry Scan or Page Scan, the HCI driver on the PC side sends the HCI driver to the wireless module side.
Send a command. At that time, Inquiry Scan / Page Sc
InquiryScan_Interval / PageScan_In to specify the interval of an
You need to set a parameter called terval. Inquir
The range of yScan_Interval / PageScan_Interval is from 11.25 ms to 2560 ms, and the default value is 1.28 seconds.

Next, the PC using the communication by Bluetooth
The functions realized between the mobile phone 100 and the mobile phone 200 will be described in detail.

For example, if the mobile phone 200 is in a bag or the like, the user may not notice the call of the mobile phone 200 in some cases. Therefore, in the present embodiment, the mobile phone 200
Is notified to a device such as the PC 100 capable of communicating by Bluetooth (hereinafter, referred to as a Bluetooth device) to notify the user operating the Bluetooth device that the call has occurred. ing. In addition, by setting in advance a process to be executed when the Bluetooth device receives a call notification from the mobile phone 200, a response can be returned to the calling side even when the user is absent.

In order to make such a function effective, the setting on the mobile phone 200 is first performed as follows.

A setting screen is called on the display of the mobile phone 200. FIG. 5 shows an example of the setting screen. The setting items include at least the Bluetooth device name, the Bluetooth address, the priority, the number of calls / time, and the search timeout time. This setting is performed for each Bluetooth device to be registered. Here, the Bluetooth device refers to a device capable of communicating with the mobile phone 200 by Bluetooth, in this example, the PC 100. Therefore, B
More than one luetooth device may be registered.

The number of calls / time is a condition for starting a search for a Bluetooth device. For example, if the number of calls is 10, if the user makes a call 10 times,
00 means that the search for the Bluetooth device is started when the call is not answered. The Bluetooth device to register with the Bluetooth device name and Bluetooth address is specified. The priority is a priority between each device when a plurality of Bluetooth devices are registered. A higher priority Bluetooth device is preferentially searched. Search timeout time is one Bluetooth
This is the maximum time to keep searching for devices.

The above setting is a setting for entrusting a response to the Bluetooth device when the user does not notice the call of the mobile phone 200.

On the other hand, Bluetoo communicating with the mobile phone 200
The setting of the PC 100 registered as the th device is performed as follows.

First, a setting screen is displayed on the LCD 155 of the PC 100. FIG. 6 shows an example of a setting screen and a setting procedure. On this setting screen, the user can set in advance on the PC 100 the operation when receiving a call notification from the mobile phone 200.

A notification of the occurrence of a call from the mobile phone is sent to PC1.
The options for the operation when received at 00 are: 1) Automatically respond by the schedule program of the PC. 2) The user selects a specific response method on the PC on the spot. There is.

[0038] The specific method of 2) which can be selected by the user is to talk with the other party on the PC. Record the other party's voice using the answering machine function of the PC. Talk to the other party on your mobile phone. Record the other party's voice using the answering machine function of your mobile phone. ignore. and so on.

When the response is set by the schedule program of 1), if there are a plurality of available schedule programs, one schedule program 110 to be used is selected, and further from the selected schedule program 110, The response items are set. Further, the schedule program 110
The details of the reading method by the schedule reader 112 that reads out the contents of the schedule output by the user, such as speed, sound quality, and volume, are set.

FIG. 7 shows an example of a schedule managed by the schedule program 110. The schedule program 110 checks the schedule at the date and time when the notification of the occurrence of the call is received from the mobile phone 200, and passes, for example, the end time of the schedule and the contents of the schedule to the schedule reader 112. Of course, at this time, the items to be passed to the schedule reader 112 can be determined in advance. For example, it is possible to set so that only the scheduled end time is passed to the schedule reader 112.

Further, it is possible to set not to respond to the schedule provided from the schedule program 110 but to respond to the user's voice message recorded in advance by the message recording / reproducing unit 111. Further, it is also possible to set so that the content of the schedule obtained from the schedule program 110 is passed to the mobile phone communication program 109 without passing through the schedule reader 112 and the mobile phone 200 responds to the other party as a text file format message via the mobile phone 200. is there.

The operation when there is no schedule whose date and time match can be set in advance. For example, it is set on the PC 100 to call the user by voice or display on the assumption that there is a possibility that the user can respond in a time zone without a schedule.

Next, an operation flow when a call to the mobile phone 200 occurs will be described.

In this operation example, the mobile phone 200
It is assumed that it is set to delegate the response to the Bluetooth device when is called. FIG. 8 shows an operation flow on the mobile phone 200 side.

If the mobile phone 200 receives an external call (step 801) and the user does not answer with the mobile phone 200 even after the set number of calls / time has elapsed (step 802), the mobile phone 200 , The Bluetooth device name set on the setting screen shown in FIG.
Bluetoot registered based on oth address, priority, etc.
An h device (hereinafter, referred to as a registered device) is searched (step 803).

Here, when there are a plurality of registered devices, the retrieval is tried in order from the one with the highest priority. That is, the registered device with the highest priority is the mobile phone 200
, The registered device may not be discovered by the mobile phone 200. In this case, as a result, a registered device having the next highest priority existing nearby is found. Search for individual registered devices,
The search is performed only for the search timeout period set for the registered device (step 804). If the target registered device is not found even after the search timeout period is reached, the search for the next highest priority registered device is performed. Switch.

It should be noted that if the priority among a plurality of registered devices is automatically changed depending on time, day of the week, etc., the usability of the user is further improved. For example, during a time zone or a day of the week when the user is at home, a device such as a computer at home is set to have the highest priority.

While searching for a registered device, the mobile phone 200 sends a message such as "Searching for a communicable device now" to the calling side. By notifying the caller of the state of mobile phone 200 in this way, it is possible to urge the caller to wait when the search timeout time is set long.

If the search for all registered devices has failed, the answering machine function of the mobile phone 200 is activated.

The mobile phone 200 has a registration device (P
C100. ) (Step 805),
An attempt is made to establish a Bluetooth connection with the PC 100, and if the connection is successful, the PC 100 is notified that a call has occurred in the mobile phone 200 (step 806).

If the portable telephone 200 supports a function of acquiring the telephone number of the calling side, the telephone number of the calling side is acquired by this function and notified to the PC 100. Alternatively, if the mobile phone 200 supports a function of searching for the name of the other party from the telephone number registered in the telephone directory function, the function obtains the name of the other party and notifies the PC 100 of this. Alternatively, the name or the like of the other party may be acquired using the telephone directory function of the PC 100 itself.

Hereinafter, the operation after PC 100 receives notification of occurrence of a call from mobile phone 200 will be described.

As a method for responding to the case where the PC 100 receives a call generation notification from the mobile phone 200, the PC 1)
If the automatic response is set by the schedule program 110 of the
Request a response to the calling side at 0. Upon receiving this request, the mobile phone 200 responds to the call, thereby connecting the telephone line with the calling side.

Thereafter, the schedule program 110 checks the schedule at the current date and time, and, for example, determines the end time of the schedule and the contents of the schedule.
Hand over to 12. Alternatively, only the scheduled end time is passed to the schedule reader 112. The schedule reader 112 converts the content passed from the schedule program 110 into an audio signal and passes it to the mobile phone communication program 109. The mobile phone communication program 109 sends the audio signal to the wireless protocol driver 106. Thereby, the PC 100
From the mobile phone 200 to the mobile phone 200,
From 00, a voice message such as "Meeting now. It is scheduled to end at 17:00" is answered to the other party through the telephone line.

Depending on the setting, instead of the voice message provided from the schedule program 110,
The message recording / reproducing unit 111 responds to the user's voice message recorded in advance. Alternatively, by passing the contents of the schedule obtained from the schedule program 110 to the mobile phone communication program 109 without passing through the schedule reader 112, a response is made to the other party as a text message.

If there is no schedule for the current date and time, an operation of calling the user by voice or display on the PC 100 or an operation of calling the user by voice or display on the mobile phone 200 is performed.

Note that the mobile phone communication program 109 has a function of automatically starting a program such as the schedule program 110.
When the schedule program 110 or the like is not activated on the program 00, the schedule program 110 or the like is activated.

Next, as a method for responding to the case where the PC 100 receives a notification of occurrence of a call from the mobile phone 200, 2)
The operation in the case where it is set on the PC that the user selects a specific response method on the spot will be described.

Upon receiving the notification of the occurrence of the call from the mobile phone 200, the PC 100 calls the user by, for example, displaying a sound such as a telephone ringing sound from a speaker, displaying a message indicating that, or both. The user who has learned that the mobile phone 200 is being called selects how to respond to this call from the options shown in FIG. This choice is
For example, this is performed by displaying a list of options (1) to (4) on the screen and allowing the user to select a desired response from the list.

If the user selects to ignore the message, the process set in advance for the selection, for example, the process of recording the voice of the other party by the answering machine function of the PC, the answering machine of the mobile phone Either a process of recording the voice of the other party with the telephone function or nothing is performed. The choice to ignore this includes cases where no call is answered due to the absence of the user.

When the user selects to talk with the other party on the PC, the mobile phone 200
Ask for a response to the call. Mobile phone 200
Responds to the call according to this request. This connects the telephone line with the caller.

After that, the PC 100 enables the voice input / output device 170 such as a microphone and a speaker, and transfers the voice signal for the call to and from the mobile phone 200. That is, after the voice of the other party received by the mobile phone 200 is converted into a signal for wireless communication, the PC 10
0, and the PC 100 reproduces sound from the received signal and causes the speaker to utter sound. In addition, the voice uttered by the user is captured by a microphone, converted into a signal for wireless communication, transmitted to the mobile phone 200 via Bluetooth,
It is transmitted from the mobile phone 200 to the telephone line. Thus, a call on PC 100 is made.

When recording of the other party's voice is selected by the answering machine function of the PC, the PC 100 requests the mobile phone 200 to respond to the call. The mobile phone 200 responds to the call according to the request. This connects the telephone line with the caller.

Thereafter, the voice of the other party is converted into a signal by the mobile phone 200, and then transferred to the PC 100 via Bluetooth. The audio signal received by the PC 100 is converted into an audio file in, for example, a WAV format by the message recording / reproducing unit 111, and is stored in a storage area such as the HDD 146. The audio file stored in the PC 100 in this way can be reproduced at any time by being specified by the user.

When the user selects to talk with the other party using the mobile phone, the user can answer the call using the mobile phone 200 and start talking.

Similarly, when the recording of the voice of the other party is selected by the answering machine function of the portable telephone, the answering machine function of the portable telephone 200 is activated.

Further, by linking the portable telephone 200 and the PC 100, it is possible to easily realize a function of transferring an incoming call to a portable terminal or a telephone having a telephone number registered in the PC 100 in advance. In the existing telephone transfer service, the registration of the transfer destination telephone number is limited to only a few cases. In the present embodiment, the transfer of the transfer destination telephone number is realized by realizing the telephone transfer service as an application on the PC 100. Relaxation of the number limit can be easily realized.

As described above, the mobile phone 200 and the PC 100
Although a system that can communicate through luetooth has been described, the present invention is not limited to the type of communication interface. The communication system may be wireless or wired.

Further, in this embodiment, the portable telephone and the PC
The mobile phone is another mobile terminal having a telephone function, for example, a PDA.
(Personal Digital (Data) Assistants) or the like. Also, the device that communicates with the mobile terminal is not limited to notebook type computers,
Not only a desktop computer, but also a personal information terminal such as a PDA or various computer peripheral devices may be used.

[0070]

As described above, according to the present invention, the occurrence of a call to a portable terminal is notified to the user on a device such as a computer capable of communicating with the portable terminal, thereby enabling the computer The user who is operating such a device can respond to the call of the portable terminal without omission.

Further, according to the present invention, when calling the portable terminal, the present schedule of the user is read out by voice on the computer, and the function of responding to the read-out voice of the schedule from the portable terminal to the calling side via the line is provided. The ability to communicate with the caller in response to a call on the
Further, various functions such as a function of recording a voice message from the calling side by an answering machine function on the computer can be realized in cooperation with the computer, and the usability for the user is greatly improved.

Further, according to the present invention, by using a large-capacity storage device such as a hard disk of a computer for recording the answering machine function, the limitation on the number of recorded messages can be greatly eased.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a software configuration of a PC.

FIG. 3 is a diagram showing a hardware configuration of a PC.

FIG. 4 is a diagram showing a software configuration of a mobile phone.

FIG. 5 is a screen for setting a computer that communicates with a mobile phone.

FIG. 6 is a diagram showing a setting screen and a setting procedure on a PC side.

FIG. 7 shows an example of a schedule managed by a schedule program.

FIG. 8 is a diagram showing a flow of an operation in a mobile phone.

[Explanation of symbols]

 100 PC 101 PC Engine Unit 102 Wireless Module 103 LMP 104 HCI 105 OS 106 Protocol Driver Group 107 HCI 108 USB Driver 109 Cellular Phone Communication Program 110 Schedule Program 111 Message Recording / Playback Unit 112 schedule reader 131 PC body 132 battery 133 external power supply 141 system bus 142 CPU 143 system controller 144 memory 145 BIOS-ROM 146 magnetic disk drive (HDD) 147 real-time clock (RTC) 148 ... keyboard controller (KBC) 149 ... embedded controller 150 ... power supply controller 151 ... VGA controller 152 ... video RAM (VRAM) 153 USB controller 154 Power circuit 155 LCD 160 Bluetooth module 161 Antenna unit 170 Voice input / output device 181 LCD panel unit 200 Mobile phone 201 Mobile phone engine unit 202 Wireless module 203 RF unit 204 Baseband unit 205 LMP 206 HCI 207 RF unit 208 Baseband unit 209 Mobile phone protocol stack 210 HCI 211 Application 212 Wireless protocol stack

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K027 AA11 BB01 CC08 5K067 AA25 AA34 BB04 BB21 FF13 FF22 FF31 HH17 HH23 JJ03 5K101 LL12 NN14 NN21 PP10 RR12 TT06 UU19 UU20

Claims (16)

[Claims] 1. A communication system for communicating between a portable terminal and a device, wherein the portable terminal detects a change in the state of the portable terminal, and the portable terminal based on a result detected by the detecting means. Search means for searching for a device capable of communicating with the
A notification issuing unit for issuing a predetermined notification to the device searched by the searching unit, wherein the device receives a notification issued from the portable terminal and executes a predetermined function. A communication system comprising: 2. The communication system according to claim 1, wherein the predetermined notification is a notification of a change in a state of the portable terminal. 3. The communication system according to claim 1, wherein the search means of the mobile terminal searches for the device when a change in the state of the mobile terminal detected by the detection means satisfies a certain condition. A communication system, comprising: 4. The communication system according to claim 1, wherein the function execution unit of the device displays a change in the state of the mobile terminal in response to a notification issued from the mobile terminal. . 5. The communication system according to claim 1, wherein the portable terminal has a line connection unit for connecting to a line, and the detection unit changes the state of the call received via the line connection unit. A communication system characterized by detecting as: 6. The communication system according to claim 5, further comprising means for the portable terminal to further transfer information transferred from a partner connected by the line connection means to the device searched by the search means. A communication system, comprising: 7. The communication system according to claim 5, further comprising: a unit configured to transfer information to the mobile terminal, wherein the mobile terminal transmits the information transferred from the device to the line connection. A communication system, further comprising: means for transferring data to a partner connected by means. 8. The communication system according to claim 5, wherein the function execution unit of the device executes a function of receiving a notification issued from the mobile terminal and transferring schedule information of a user to the mobile terminal, A communication system, comprising: a portable terminal further comprising means for further transferring schedule information transferred from the device to a partner connected by the line connection means. 9. A communication method between a portable terminal and a device, wherein a step of detecting a change in a state of the portable terminal, a step of searching for a device capable of communicating with the portable terminal based on the detected result, A mobile terminal and a device, comprising: sending a predetermined notification from the mobile terminal to the searched device; and executing a predetermined function in the device having received the notification from the mobile terminal. How to communicate with. 10. The communication method between a mobile terminal and a device according to claim 9, wherein the predetermined notification is a notification of a change in the state of the mobile terminal. 11. The communication method between a portable terminal and a device according to claim 9, wherein the device is searched when the detected change in the state of the portable terminal satisfies a certain condition. Communication method between mobile terminal and device. 12. The communication method between a portable terminal and a device according to claim 9, wherein the device displays a change in the state of the portable terminal in response to a notification issued from the portable terminal. Communication method between mobile terminal and device. 13. The communication method between a portable terminal and a device according to claim 9, wherein the portable terminal detects a call received via a line as a change in the state. Communication method. 14. The communication method between a mobile terminal and a device according to claim 13, wherein the mobile terminal transfers information transferred from a partner connected through the line to the searched device. Communication method between the mobile terminal and the device. 15. The communication method between a portable terminal and a device according to claim 13, wherein information is transferred from the device to the portable terminal, and information transferred from the device to the portable terminal is transmitted through the line. Transferring the data to a connected party. 16. The communication method between a portable terminal and a device according to claim 13, wherein the device receives a notification issued by the portable terminal and transfers schedule information of a user to the portable terminal. Wherein the schedule information transferred from the device is further transferred to the other party connected through the line.