JP2012085224A - In-vehicle hands-free telephone and method for updating incoming/outgoing call history information of in-vehicle hands-free telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-vehicle hands-free telephone capable of sharing information with a mobile phone more accurately and in real time.SOLUTION: An in-vehicle hands-free telephone provided in a vehicle includes storage means and control means that acquires information including incoming/outgoing call history information from a mobile phone via communication means at predetermined timing, and allows the storage means to store the acquired information. When an incoming/outgoing call is generated by the mobile phone while acquiring the information including the incoming/outgoing call history information from the mobile phone, the control means determines whether the information about the generated incoming/outgoing call is reflected to the incoming/outgoing call history information acquired from the mobile phone via the communication means and, when it is not reflected, it adds the information about the generated incoming/outgoing call to the incoming/outgoing call history information acquired from the mobile phone via the communication means, for storage in the storage means.

Description

  The present invention relates to an in-vehicle hands-free telephone device capable of making a telephone call by means of voice input / output means in a state in which a voice path is opened with a mobile phone using communication means, and a method for updating outgoing / incoming call history information In particular, the present invention relates to an in-vehicle hands-free telephone device that can share information such as a call history stored in a mobile phone with a mobile phone, and a method for updating the call history information.

  2. Description of the Related Art Conventionally, an in-vehicle hands-free telephone device has been put into practical use that allows a passenger to make a telephone call without gripping a mobile phone in a vehicle (for example, see Non-Patent Document 1). This in-vehicle hands-free telephone device builds a network using Bluetooth (registered trademark) etc. with a mobile phone brought into the vehicle interior, and can make phone calls via a mobile phone using a microphone or speaker that is a vehicle-side equipment It is said.

  In-vehicle hands-free telephone devices not only simply extend the telephone call function of mobile phones, but also share information such as phone books and incoming / outgoing histories held by mobile phones, for example in liquid crystal display devices for navigation display It is possible to perform processing such as displaying destination candidates.

  In relation to this, an invention about an in-vehicle hands-free device that can make a call by selecting a desired telephone number from outgoing call history data and incoming call history data automatically transferred from a mobile phone is disclosed (for example, Patent Document 1). In this apparatus, after the outgoing / incoming history data is acquired from the mobile phone when the vehicle system is activated, the outgoing / incoming history data is self-managed on the vehicle side.

JP 2009-81824 A

Toyota Motor Corporation, “Alphad Vellfire New Car Description (Part No. NM0900J)”, Toyota Motor Corporation Service Department, August 5, 2008, Chapter 10, Body & Electrical, p10-492-10-495

  However, in the apparatus described in Patent Document 1, no consideration is given to a case where an incoming / outgoing call using a mobile phone occurs while outgoing / incoming history information is transmitted from the mobile phone.

  In such a case, whether or not information transmission including the history of outgoing / incoming calls is performed depends on the specifications of the mobile phone. Therefore, as in the apparatus described in Patent Document 1, if information on the generated outgoing / incoming call is always added and stored on the vehicle side, the information on the generated outgoing / incoming call may be stored redundantly. There is a risk that the storage area is wasted. On the other hand, if no measures are taken on the vehicle side in such a situation, there is a possibility that the information regarding the generated outgoing / incoming calls will not be stored on the vehicle side.

  The present invention is for solving such problems, and provides an in-vehicle hands-free telephone device capable of performing information sharing with a mobile phone more accurately and in real time, and a method for updating outgoing / incoming call history information. The main purpose is to do.

In order to achieve the above object, the first aspect of the present invention provides:
A voice input / output means mounted on a vehicle and a communication means for communicating with a mobile phone, the voice input / output means in a state where a voice path is opened with the mobile phone using the communication means. An in-vehicle hands-free telephone device that enables telephone calls,
Storage means;
Obtaining information including outgoing / incoming call history information from the mobile phone via the communication means at a predetermined timing, and a control means for storing the obtained information in the storage means,
The control means includes
When an incoming / outgoing call using the mobile phone occurs while acquiring information including outgoing / incoming call history information from the mobile phone, the outgoing / incoming history information acquired from the mobile phone via the communication means To determine whether or not the information related to the outgoing / incoming call is reflected,
If it is reflected, the call history information acquired from the mobile phone via the communication means is stored in the storage means,
If not reflected, the information on the generated outgoing / incoming call is added to the outgoing / incoming call history information acquired from the mobile phone via the communication means, and stored in the storage means,
This is an in-vehicle hands-free telephone device.

  According to the first aspect of the present invention, when an outgoing / incoming call using the mobile phone occurs while acquiring information including outgoing / incoming history information from the mobile phone, the acquired outgoing / incoming history information Whether the information related to the outgoing / incoming call is reflected, and if it is reflected, the acquired outgoing / incoming history information is stored in the storage means, and if it is not reflected, the acquired outgoing / incoming history information is stored. Since information related to the incoming and outgoing calls is added to the incoming call history information and stored in the storage means, information sharing with the mobile phone can be performed more accurately and in real time.

In the first aspect of the present invention,
The control means is acquired from the mobile phone via the communication means when an incoming / outgoing call using the mobile phone occurs while acquiring information including outgoing / incoming call history information from the mobile phone. It is determined whether or not the information related to the generated outgoing / incoming call history is reflected in the received outgoing / incoming call history information. If the information is not reflected, the outgoing / incoming call history information is transmitted to the mobile phone via the communication means. It may be characterized by requesting retransmission.

In the first aspect of the present invention,
The control means includes
When at least a part of the information on the outgoing / incoming call includes only the outgoing / incoming time, a request is made to the mobile phone via the communication means to transmit the telephone number of the other party at the outgoing / incoming time. It is good also as what is characterized by doing.

  In this way, only the outgoing / incoming time is grasped, and it is possible to cope with the case where the telephone number of the other party is unknown.

The second aspect of the present invention is:
An in-call history information update method for an in-vehicle hands-free telephone device mounted on a vehicle,
As a step executed by a computer included in the in-vehicle hands-free telephone device,
Obtaining information including call history information from a mobile phone;
Determining whether an incoming / outgoing call using the mobile phone has occurred while acquiring information including the outgoing / incoming call history information;
Determining whether or not the information related to the outgoing / incoming call is reflected in the outgoing / incoming call history information acquired from the mobile phone via the communication means;
Storing information on the outgoing and incoming call history information acquired from the mobile phone via the communication means in the storage means when the information on the generated outgoing and incoming calls is reflected in the acquired outgoing and incoming call history information;
When the information on the generated outgoing / incoming call is not reflected in the acquired outgoing / incoming call history information, the information on the generated outgoing / incoming call is added to the outgoing / incoming call history information acquired from the mobile phone via the communication means. Adding and storing in the storage means;
It is characterized by having
This is a method for updating outgoing / incoming history information of an in-vehicle hands-free telephone device.

  According to the second aspect of the present invention, when an incoming / outgoing call using the mobile phone occurs while acquiring information including outgoing / incoming call history information from the mobile phone, the acquired outgoing / incoming history information Whether the information related to the outgoing / incoming call is reflected, and if it is reflected, the acquired outgoing / incoming history information is stored in the storage means, and if it is not reflected, the acquired outgoing / incoming history information is stored. Since information related to the incoming and outgoing calls is added to the incoming call history information and stored in the storage means, information sharing with the mobile phone can be performed more accurately and in real time.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle-mounted hands-free telephone apparatus which can perform information sharing with a mobile telephone more correctly and in real time, and its outgoing / incoming history information update method can be provided.

1 is a system configuration example of an in-vehicle hands-free telephone device 1 according to an embodiment of the present invention. It is a flowchart which shows the flow of the characteristic process which the information update control part 22 which concerns on one Example of this invention performs. It is another example of the flowchart which shows the flow of the characteristic process which the information update control part 22 performs. It is another example of the flowchart which shows the flow of the characteristic process which the information update control part 22 performs. It is a figure which shows typically the time change of the information stored and processing when an incoming / outgoing call does not occur during the information reception from the mobile telephone. It is a figure which shows typically the time change of the information stored and processing when the incoming / outgoing call generate | occur | produces during the information reception from the mobile telephone.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, an in-vehicle hands-free telephone device according to an embodiment of the present invention will be described with reference to the drawings. The in-vehicle hands-free telephone device of the present invention constructs a communication network with a mobile phone existing in a vehicle compartment, and makes a voice call input / output device (microphone, By using a speaker or the like, the cellular phone can be held without gripping.

  In addition, the in-vehicle hands-free telephone device of the present invention can share information such as a phone book, outgoing / incoming call history, and images held in a mobile phone with a mobile phone, thereby allowing the other party registered in the phone book to Part of the functions of the mobile phone can be temporarily shifted to the vehicle side, for example, by performing an operation on the vehicle side. The vehicle-mounted hands-free telephone device of the present invention has an object to share information for such temporary function transition more accurately and in real time.

[Constitution]
FIG. 1 is a system configuration example of an in-vehicle hands-free telephone device 1 according to an embodiment of the present invention. The in-vehicle hands-free telephone device 1 includes a display device 10, an input device 12, a navigation / audio board 20, a BT (Bluetooth) module 30, and a voice input / output device 40 as main components. . The in-vehicle hands-free telephone device 1 is operated by a vehicle power source and is connected to other devices in the vehicle so as to start operation when the vehicle system is activated (when ACC is on).

  The display device 10 is a liquid crystal display device configured as, for example, a touch panel, and displays various information related to the operation of the in-vehicle hands-free telephone device 1, and also allows a user to use a GUI (Graphical User Interface) switch set on the screen. Various input operations can be performed by touching. The display device 10 may be shared with an in-vehicle system such as a navigation system, and may display information such as a navigation display.

  The input device 12 is a device for allowing the user to perform an input operation other than the input operation using the GUI switch. The input device 12 is installed in a place where it can be easily operated by the driver, such as a steering pad. The input device 12 includes a mechanical switch, a volume controller, a haptic device, and the like.

  The navigation / audio board 20 is a microcomputer configured by combining a processing device such as a CPU (Central Processing Unit), a storage device, a timer, an internal bus, and the like, and is stored in a program memory such as a ROM (Read Only Memory). A hands-free call control unit 21 and an information update control unit 22 are provided as functional blocks that function when the processing device executes the executed program. The functions of these functional blocks will be described later.

  The navigation / audio board 20 includes a working memory 23, a nonvolatile memory 24, and other storage devices.

  The working memory 23 is, for example, a RAM (Random Access Memory) or a register, and the nonvolatile memory 24 is, for example, an EEPROM (Electrically Erasable and Programmable Read Only Memory), a flash memory, a hard disk, a CD-R, a DVD-R, or the like. is there. These distinctions are convenient, and there may be cases where the flash memory or the like functions as a working memory. The working memory 23 and the non-volatile memory 24 are different areas in the same non-volatile memory. It doesn't matter.

  The BT module 30 includes an antenna, an RF (Radio Frequency) processing unit, and a BB (Base Band) processing unit that are registered in the nonvolatile memory 24 in advance and perform wireless communication with the mobile phone 70 brought into the vehicle interior. And a CPU for Bluetooth.

  The RF processing unit performs lower layer processing such as despreading processing and demodulation processing on the RF signal input from the antenna, and outputs the result to the BB processing unit. The BB processing unit defines a protocol for performing wireless communication, performs predetermined baseband processing on the signal input from the RF processing unit, and inputs the obtained signal to the Bluetooth CPU. The CPU for Bluetooth performs processing for establishing wireless communication with the mobile phone 70. When a signal is output from the Bluetooth CPU to the antenna, the reverse process is performed.

  Here, Bluetooth employs a frequency hopping type spread spectrum communication system using a 2.4 GHz ISM band (Industry Science Medical band), and can perform wireless communication at a communication speed of 1 Mbps or more.

  The voice input / output device 40 includes, for example, a voice recognition microphone installed in an overhead console and a vehicle speaker.

  The audio signal input by the voice recognition microphone is supplied to the BT module 30. This audio signal is transmitted to the mobile phone 70 after predetermined audio processing is performed in the BT module 30. The vehicle speaker outputs an audio signal of the mobile phone 70 input via the BT module 30.

  As described above, by using the voice input / output device 40, an occupant in the vehicle cabin can input and output voice including a telephone call without gripping a mobile phone or other devices.

  The mobile phone 70 targeted by the in-vehicle hands-free telephone device 1 of the present embodiment has a built-in BT module in the same manner as the in-vehicle hands-free telephone device 1. Accordingly, if the distance between the in-vehicle hands-free telephone device 1 and the mobile phone 70 is within about 10 [m], wireless communication is possible by constructing a wireless LAN called a piconet. In the piconet, for example, the in-vehicle hands-free telephone device 1 functions as a master, and the mobile phone 70 functions as a slave.

  The in-vehicle hands-free telephone device 1 can cause the voice input / output device 40 to perform telephone communication with a telephone of a communication partner via the mobile phone 70 and the mobile phone base station 80 (hereinafter, such a telephone call is referred to as “hands-free”). Called "call"). The other party's telephone may be a mobile phone or a fixed telephone.

  For application of the present invention, communication between the in-vehicle hands-free telephone device 1 and the mobile phone 70 may be realized by a communication means other than Bluetooth (whether wired or wireless).

  A plurality of mobile phones 70 may be registered in the in-vehicle hands-free telephone device 1 at the same time. In this case, when a plurality of mobile phones are simultaneously recognized by the in-vehicle hands-free phone device 1, the mobile phones connected to the in-vehicle hands-free phone device 1 in accordance with the priorities registered in advance in the nonvolatile memory 24 or the like. Is selected.

[Control for hands-free calling]
The hands-free call control unit 21 performs outgoing call control and incoming call control for starting a hands-free call as described below.

  The outgoing call control is started when the user performs an input operation for instructing the start of a hands-free call. When transmission control is started, the user instructs to make a call to a desired telephone number by a method such as dialing, telephone directory transmission, transmission history transmission, incoming history transmission, one-touch dial transmission, voice recognition transmission, etc. be able to.

  When telephone directory transmission, transmission history transmission, or the like is selected, the hands-free call control unit 21 reads out the telephone directory information and outgoing / incoming history information stored in the non-volatile memory 24 and previously developed on the working memory 23. Display on the display device 10 as a GUI switch. Then, the hands-free call control unit 21 sends an instruction signal to the BT module 30 so as to make a call to a number selected by a user touching the GUI switch or by voice input or the like. The BT module 30 instructs the mobile phone 70 to make a call to the number designated by the hands-free call control unit 21, and the mobile phone 70 makes a call to the designated number.

  The incoming call control is started when a call arrives at the mobile phone 70. When a call arrives at the mobile phone 70, the BT module 30 transmits a signal for notifying the hands-free call control unit 21 that the call has been received.

  For example, the hands-free call control unit 21 notifies the user that there is an incoming call by voice output, displays a telephone number or the like on the display device 10, and further selects whether to start a hands-free call. Set the GUI switch to do this. Then, when the user touches the GUI switch or gives an instruction to start a call by voice input or other means, a hands-free call is started.

[Control for information update]
The information update control unit 22 acquires telephone directory information, outgoing / incoming call history information (outgoing history information and incoming call history information), image information, and the like from the mobile phone 70 via the BT module 30 at a predetermined timing, and the acquired telephone Book information, outgoing / incoming call history information, image information, and the like are overwritten and stored in the nonvolatile memory 24. When information is stored in the nonvolatile memory 24, the information is temporarily stored in the working memory 23 as necessary.

  Here, the predetermined timing is, for example, when the vehicle system is activated (when ACC is turned on) or when an input operation for instructing acquisition of the information is performed by the user.

  As a result, the phone book information and outgoing / incoming call history information held by the mobile phone 70 can be shared with the mobile phone, and the call to the other party included in the phone book information and outgoing / incoming call history information can be controlled on the vehicle side. For example, a part of the functions of the mobile phone can be temporarily shifted to the vehicle side.

  By the way, during such information transmission from the mobile phone 70, there is a case where outgoing / incoming calls using the mobile phone 70 occur. In such a case, whether or not information transmission including the history of outgoing / incoming calls is performed depends on the specifications of the mobile phone 70. Also, whether or not to temporarily stop information transmission when an incoming / outgoing call occurs during information transmission depends on the specifications of the mobile phone 70.

  Accordingly, if no means is taken when an incoming / outgoing call occurs during information transmission, there is a possibility that information relating to the generated outgoing / incoming call will not be stored on the vehicle side. On the contrary, if information on the generated outgoing / incoming call is necessarily added and stored on the vehicle side, the information on the generated outgoing / incoming call may be stored redundantly, leading to wasted storage area. There is a fear.

  In view of such a situation, the information update control unit 22 according to the present embodiment, when an incoming / outgoing call using the mobile phone 70 occurs while information is transmitted from the mobile phone 70, the mobile phone 70. It is determined whether the information related to the incoming / outgoing call is reflected in the outgoing / incoming call history information acquired from the mobile phone 70 through the BT module 30, and if not, the outgoing / incoming call history acquired from the mobile phone 70 is determined. Information relating to the generated outgoing / incoming call is added to the information and stored in the nonvolatile memory 24.

  This makes it possible to share information with the mobile phone 70 more accurately and in real time.

  If a call is made at a timing other than during the transmission of information from the mobile phone 70, information on the generated call is stored in the working memory 23 or the like. Used as history information), and may be stored in the non-volatile memory 24 when the vehicle system is shut down.

[Processing flow (1)]
Hereinafter, a process when the information update control unit 22 acquires information from the mobile phone 70 and stores it in the nonvolatile memory 24 will be described.

  FIG. 2 is a flowchart showing a flow of characteristic processing executed by the information update control unit 22 according to an embodiment of the present invention. As described above, this flow is started at a predetermined timing such as when the vehicle system is activated (when ACC is turned on) or when an input operation for instructing the acquisition of the information is performed by the user.

  First, the information update control unit 22 requests a PBAP (Phone Book Access Profile) connection to the mobile phone 70 via the BT module 30 (hereinafter omitted) (S100). PBAP is a profile for transferring data such as a telephone directory in Bluetooth.

  Next, the information update control unit 22 requests the mobile phone 70 to transmit telephone directory information (S102), and then requests transmission of outgoing / incoming call history information (S104). The reception information transmitted by the mobile phone 70 and received by the in-vehicle hands-free telephone device 1 is stored in, for example, the working memory 23 and used as the latest information, and is also stored in the nonvolatile memory 24 as described below. Used in subsequent trips.

  Next, the information update control unit 22 determines whether or not a reception error has occurred regarding information reception from the mobile phone 70 (S106). If a reception error has occurred, this flow ends.

  If no reception error has occurred, the information update control unit 22 determines whether an outgoing / incoming call using the mobile phone 70 has occurred (S108).

  When an outgoing / incoming call using the mobile phone 70 occurs, the information update control unit 22 stores information on the outgoing / incoming call in the working memory 23 (S110). Then, it is determined whether the PBAP connection is interrupted (S112).

  Here, the “information about outgoing / incoming calls” is information grasped on the vehicle side, for example, and includes at least the outgoing / incoming time, and may include the telephone number or registered name of the other party. Whether or not the PBAP connection is interrupted at the time of outgoing / incoming calls depends on the specifications of the mobile phone 70.

  When the PBAP connection is interrupted, the information update control unit 22 waits for the call by the outgoing / incoming call or the end of the outgoing / incoming state (S114), and requests the mobile phone 70 for the PBAP connection again.

  The information update control unit 22 determines that the PBAP connection is not interrupted in S112, and if it is determined that the outgoing / incoming call has not occurred in S108 (determined that the PBAP connection is interrupted in S112, and thereafter (Including the case where it is determined that no incoming call has occurred), it is determined whether or not the reception of the phone book information and the incoming / outgoing call history information has been completed (S116). This determination can be performed, for example, by detecting a predetermined flag added to the end of the transmitted information. If the reception of the phone book information and the outgoing / incoming call history information has not ended, the process returns to S106.

  When the reception of the phone book information and the outgoing / incoming call history information is completed, the information update control unit 22 subsequently determines whether or not the reception of the telephone book information and the outgoing / incoming call history information is successful (S118). Here, “information has been successfully received” means that one or more pieces of update / addition information have been received. The received information is stored at a different address from the outgoing / incoming history information developed from the nonvolatile memory 24 on the working memory 23. If the reception of the phone book information or the incoming / outgoing call history information is not successful, this flow ends.

  The information update control unit 22 compares the received information with the vehicle holding information when the phone book information and the outgoing / incoming call history information are successfully received (S120). Here, the “vehicle holding information” is, for example, information obtained by adding the information stored in the working memory 23 in S110 to the outgoing / incoming call history information previously developed on the working memory 23.

  Then, it is determined whether or not the received information reflects information related to outgoing / incoming calls that occurred during reception of the received information (S122). In S120, the information update control unit 22 matches the latest predetermined number of outgoing / incoming call history information completely, or at least the outgoing / incoming time of the latest predetermined number of outgoing / incoming history information. In this case, it is determined that information related to outgoing / incoming calls that occurred during reception of the received information is reflected.

  If the received information reflects information related to outgoing / incoming calls that occurred during reception of the received information, the information update control unit 22 rewrites outgoing / incoming history information based on the received information (S124). . Specifically, the reception information stored in the working memory 23 as described above is overwritten and saved in a predetermined area of the nonvolatile memory 24.

  On the other hand, when the received information does not reflect information related to outgoing / incoming calls during reception of the received information, the information update control unit 22 includes information included in the vehicle holding information but not included in the received information (hereinafter, The call history information is rewritten by adding “additional information”) to the received information (S126).

  Specifically, the oldest information received from the received information stored in the working memory 23 is deleted (one when there are multiple incoming / outgoing calls), and the additional information is added as the latest information. Then, it is overwritten and saved in a predetermined area of the nonvolatile memory 24.

  In the flowchart of FIG. 2, the rewriting of the phone book information is not mentioned. However, after the reception of the phone book information is completed, it is stored as the latest information in the working memory 23 or the nonvolatile memory 24 at an arbitrary timing. Good. This is because the contents of the phone book information do not change depending on incoming / outgoing calls.

[Processing flow (2)]
Here, when the additional information includes only the outgoing / incoming time, the information update control unit 22 may request the mobile phone 70 to transmit the telephone number of the other party that made and received the incoming / outgoing time.

  The situation in which the additional information includes only the outgoing / incoming time may occur when (1) a call is made by operating the mobile phone 70 after a wireless LAN for a hands-free call is established, for example. It can also occur when (2) the mobile phone 70 is used so that it does not notify the vehicle side of the telephone number when an incoming call is received.

  FIG. 3 is a processing flow in consideration of such a scene, and is another example of a flowchart showing a characteristic processing flow executed by the information update control unit 22.

  The processing from S100 to S124 is the same as that in FIG.

  If the received information does not reflect the incoming / outgoing call history information being received, the information update control unit 22 determines whether the additional information includes only the outgoing / incoming time (S126_1).

  When the additional information includes not only the outgoing / incoming time but also the telephone number of the other party, the information update control unit 22 adds the additional information to the received information and rewrites the outgoing / incoming history information (S126_2). ).

  On the other hand, when the additional information includes only the outgoing / incoming call time, the information update control unit 22 requests the mobile phone 70 to transmit the telephone number of the other party that is called at the outgoing / incoming time (S126_3). Then, the information received as a result is added to the received information, and the call history information is rewritten (S126_4).

[Processing flow (3)]
Further, when the received information does not reflect the incoming / outgoing call history information being received, the information update control unit 22 may request the mobile phone 70 to transmit information including the outgoing / incoming call history information again. FIG. 4 is a processing flow in such a case, and is another example of a flowchart showing a flow of characteristic processing executed by the information update control unit 22.

  The processing from S100 to S124 is the same as that in FIG.

  If the received information does not reflect the incoming / outgoing call history information being received, the information update control unit 22 returns to S104 and requests transmission of the outgoing / incoming call history information again. The subsequent processing is the same as that described with reference to FIG.

[Change over time]
Hereinafter, processing executed in the in-vehicle hands-free telephone device 1 according to the present embodiment and temporal changes in information stored in the nonvolatile memory 24 and the like will be described.

  FIG. 5 is a diagram schematically showing temporal changes in information to be processed and stored when no incoming / outgoing calls occur while receiving information from the mobile phone 70.

  As shown in the figure, when control for information update is started, reception of telephone directory information is started at time t1.

  At time t2, reception of the phone book information is completed, the phone book information in the nonvolatile memory 24 is updated to new information, and reception of outgoing / incoming call history information is started.

  At time t3, reception of outgoing / incoming history information is terminated, and reception of image information is started.

  At time t4, the reception of the image information is completed, and the outgoing / incoming history information and the image information in the nonvolatile memory 24 are updated to new information.

  FIG. 6 is a diagram schematically showing temporal changes in processing and stored information when an incoming / outgoing call occurs while receiving information from the mobile phone 70. In this figure, when an incoming / outgoing call occurs during information transmission, the mobile phone 70 interrupts the information transmission.

  As shown in the figure, when control for information update is started, reception of telephone directory information is started at time t5.

  At time t6, reception of the phone book information is completed, the phone book information in the nonvolatile memory 24 is updated to new information, and reception of outgoing / incoming call history information is started.

  When an incoming call occurs at the cellular phone 70 at time t7, information related to the incoming call is stored in the working memory 23 (denoted as one history addition in the figure).

  At time t8, since the mobile phone 70 interrupts information transmission, reception of outgoing / incoming call history information is interrupted.

  When the hands-free call or incoming call ends at time t9, reception of outgoing / incoming call history information is resumed.

  At time t10, the reception of outgoing / incoming history information is finished, and the reception of image information is started.

  At time t11, the reception of the image information is completed, and the outgoing / incoming history information and the image information in the nonvolatile memory 24 are updated to new information.

[Summary]
According to the in-vehicle hands-free telephone device 1 of the present embodiment described above and the outgoing / incoming history information update method executed in the in-vehicle hands-free telephone device 1, the outgoing / incoming history information is transmitted from the mobile phone 70. In the meantime, when an incoming / outgoing call using the mobile phone 70 occurs, whether the information related to the incoming / outgoing call is reflected in the outgoing / incoming history information acquired from the mobile phone 70 via the BT module 30. If it is not reflected and is not reflected, information related to the generated incoming / outgoing call is added to the outgoing / incoming history information acquired from the mobile phone 70 and stored in the nonvolatile memory 24. Information can be shared more accurately and in real time.

  The best mode for carrying out the present invention has been described above with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention. And substitutions can be added.

DESCRIPTION OF SYMBOLS 1 Car-mounted hands-free telephone apparatus 10 Display apparatus 12 Input device 20 Navigation / audio board 21 Hands-free call control part 22 Information update control part 23 Working memory 24 Non-volatile memory 30 BT module 40 Voice input / output device 70 Mobile phone 80 Mobile phone base Station

Claims (4)

A voice input / output means mounted on a vehicle and a communication means for communicating with a mobile phone, the voice input / output means in a state where a voice path is opened with the mobile phone using the communication means. An in-vehicle hands-free telephone device that enables telephone calls,
Storage means;
Obtaining information including outgoing / incoming call history information from the mobile phone via the communication means at a predetermined timing, and a control means for storing the obtained information in the storage means,
The control means includes
When an incoming / outgoing call using the mobile phone occurs while acquiring information including outgoing / incoming call history information from the mobile phone, the outgoing / incoming history information acquired from the mobile phone via the communication means To determine whether or not the information related to the outgoing / incoming call is reflected,
If it is reflected, the call history information acquired from the mobile phone via the communication means is stored in the storage means,
If not reflected, the information on the generated outgoing / incoming call is added to the outgoing / incoming call history information acquired from the mobile phone via the communication means, and stored in the storage means,
In-vehicle hands-free telephone device. The in-vehicle hands-free telephone device according to claim 1,
The control means is acquired from the mobile phone via the communication means when an incoming / outgoing call using the mobile phone occurs while acquiring information including outgoing / incoming call history information from the mobile phone. It is determined whether or not the information related to the generated outgoing / incoming call history is reflected in the received outgoing / incoming call history information. If the information is not reflected, the outgoing / incoming call history information is transmitted to the mobile phone via the communication means. Characterized by requesting retransmission,
In-vehicle hands-free telephone device. The in-vehicle hands-free telephone device according to claim 1,
The control means includes
When at least a part of the information on the outgoing / incoming call includes only the outgoing / incoming time, a request is made to the mobile phone via the communication means to transmit the telephone number of the other party at the outgoing / incoming time. It is characterized by
In-vehicle hands-free telephone device. An in-call history information update method for an in-vehicle hands-free telephone device mounted on a vehicle,
As a step executed by a computer included in the in-vehicle hands-free telephone device,
Obtaining information including call history information from a mobile phone;
Determining whether an incoming / outgoing call using the mobile phone has occurred while acquiring information including the outgoing / incoming call history information;
Determining whether or not the information related to the outgoing / incoming call is reflected in the outgoing / incoming call history information acquired from the mobile phone via the communication means;
Storing information on the outgoing and incoming call history information acquired from the mobile phone via the communication means in the storage means when the information on the generated outgoing and incoming calls is reflected in the acquired outgoing and incoming call history information;
When the information on the generated outgoing / incoming call is not reflected in the acquired outgoing / incoming call history information, the information on the generated outgoing / incoming call is added to the outgoing / incoming call history information acquired from the mobile phone via the communication means. Adding and storing in the storage means;
It is characterized by having
Incoming and outgoing call history information update method for in-vehicle hands-free telephone device.

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