JP5748427B2 - Hands-free call system - Google Patents

Description

  The present invention relates to a hands-free call system, and more particularly to an incoming call notification method in an in-vehicle hands-free call system.

  When a driver makes a call while holding a mobile phone while traveling, an accident may occur due to lack of attention. For this reason, such calls during traveling are prohibited by the Road Traffic Law. When a phone call is absolutely necessary while traveling, a hands-free phone call system that can make a phone call without holding the mobile phone is used. In a typical hands-free call system, a mobile phone is connected to an electronic device (for example, an audio / video device, a navigation device, a television / radio receiver device, etc.) mounted on a vehicle, and the voice emitted from the other party is electronically transmitted. The sound is output from a speaker in the vehicle through the device, and the voice of the driver is input from a microphone in the vehicle and transmitted to the other party through the mobile phone. The microphone may be fixed in the vehicle or may be fixed to the headgear worn by the driver.

  In an in-vehicle hands-free call system, when an incoming call is received, a ring tone is output from an in-vehicle speaker, so that the driver is surely notified of the incoming call. Further, Patent Document 1 discloses an incoming call display system for informing that there has been an incoming call. According to this, when the communication terminal device receives the incoming call and the caller ID information via the communication line, these information is transmitted to the information processing device, and the information processing device indicates that the incoming call has been received on the display unit. Display message and caller ID information.

Japanese Patent No. 3322479 gazette

  In a conventional hands-free call system, it may not be possible to reliably notify the driver that an incoming call has been received due to the influence of noise during traveling, etc., only by outputting the ring tone of the mobile phone. Therefore, when there is an incoming call, a message indicating that there is an incoming call is displayed on the display of the in-vehicle device, and when the caller number is notified thereafter, the caller number is displayed on the display. FIG. 7A shows an incoming call notification method of a conventional hands-free call system. If there is an incoming call while the road map screen by navigation is displayed on the display, the incoming call screen 1 showing a message such as “Incoming call!” Is displayed, and then the caller ID is notified. An incoming call screen 2 showing the caller number is displayed.

  As described above, depending on the specifications of the mobile phone connected to the in-vehicle device main body and the mobile phone network used by the mobile phone, the caller ID is not notified at the same time as the incoming call, that is, after a certain time from the incoming call. Some caller IDs are notified. In this case, since the driver cannot identify the other party at the time of the incoming call screen 1, it is impossible to determine whether or not to start the call at the incoming screen 1, and the driver is conscious of waiting for the incoming screen 2. There is a need. However, some mobile phones require several seconds to notify the caller ID, that is, to display the incoming call screen 2, and it is a heavy burden for the driver who is traveling to confirm this.

  An object of the present invention is to solve the above-described conventional problems and to provide a hands-free call system capable of providing incoming information so as not to burden the driver.

  A hands-free call system according to the present invention includes a voice input means for inputting voice and outputting a voice signal, a voice output means for outputting voice based on the voice signal, a communication means having at least a call function, a display means, By transmitting the voice signal from the voice input means to the call partner via the communication means, receiving the voice signal from the call partner via the communication means, and outputting it from the voice output means, the communication means Control means for enabling a hands-free call, and the control means sets, from the communication means, incoming information indicating that the communication means has received an incoming call and identification information for identifying a call partner at a time interval. When it is received after being received, the incoming call information and the identification information are simultaneously displayed on the display means.

  Preferably, the control means displays the incoming information on the display means when the incoming information is received, and the display means displays the incoming information and the identification information when the identification information is received. When the display sequence includes the second step to be displayed, the first step is not executed. Preferably, the control means includes a determination means for determining whether or not the identification information can be obtained from the communication means. When the determination means determines that the identification information cannot be obtained, the incoming information is displayed on the display means. Let Preferably, the determination means determines that the identification information is not available when the identification information cannot be received within a predetermined time from the time when the incoming information is received. Preferably, the determination means stores an elapsed time from the time when the past incoming information is received to the time when the identification information is received, and the determination means sets the maximum value of the elapsed time as the certain time. Further, the determination unit can determine whether or not the identification information is available based on specification information regarding the specification of the communication unit. Furthermore, the determination means can determine that the identification information cannot be obtained when the other party of the call is set to not notify the identification information. Preferably, the identification information may be a telephone number of a call partner or name information of a call partner.

  According to the present invention, when there is a time interval between receiving the incoming information and receiving the caller number, the incoming information and the identification information of the other party (for example, the caller number) are displayed at the same time. The user can confirm that there is an incoming call at one time and the other party, and can reduce the burden on the user.

It is a figure which shows the outline | summary of the hands-free call system which concerns on the Example of this invention. It is a block diagram which shows the structure of the vehicle-mounted electronic apparatus shown in FIG. It is a functional block of the control part shown in FIG. It is a block diagram which shows the structure of a portable communication terminal. It is a block diagram which shows a part of function of a mobile communication terminal. It is a figure which shows the operation | movement flow of the hands-free call system which concerns on 1st Example of this invention. FIG. 7A shows a display example by the conventional incoming call notification method, and FIGS. 7B and 7C show a display example by the incoming call notification method of the first embodiment of the present invention. It is a figure which shows the example of a display by the incoming call notification method of 2nd Example of this invention.

  Next, a hands-free call system according to an embodiment of the present invention will be described in detail with reference to the drawings. As a preferred embodiment of the present invention, an example in which the hands-free call system is used for in-vehicle use will be described.

  FIG. 1 is a diagram illustrating an outline of a hands-free call system according to an embodiment of the present invention. The hands-free call system 10 according to the present embodiment includes an in-vehicle electronic device 20, a microphone 30 that inputs voice from a driver, a speaker 40 that outputs voice to the interior space, a display 50, and the in-vehicle electronic device 20. And a portable communication terminal 60 that can be connected by wire or wireless.

  The in-vehicle electronic device 20 is an audio device, a video device, a navigation device, a television / radio receiving device, an information processing device, or other electronic devices mounted on a vehicle, and is mounted in, for example, a front dashboard. As will be described later, the in-vehicle electronic device 20 has functions necessary for a driver to perform a hands-free call. The microphone 30 inputs a voice emitted from the driver when performing a hands-free call, and outputs the voice signal to the in-vehicle electronic device 20. The speaker 40 outputs a sound based on a sound signal from the mobile communication terminal 50 when performing a hands-free call. The display 50 is attached to the front surface of the housing of the in-vehicle electronic device 20, for example. The microphone 30, the speaker 40, and the display 50 do not necessarily have to be dedicated items for hands-free calling, and can be used for other purposes (navigation, audio, etc.).

  The mobile communication terminal 60 can be, for example, a mobile phone, a computer having a communication function, a multifunctional smart phone, an information terminal, or a network terminal. When the mobile communication terminal 60 is brought into the vehicle to perform a hands-free call, the mobile communication terminal 60 is connected to the vehicle-mounted electronic device 20 by a wired cable or wirelessly. The on-vehicle electronic device 20 connected to the mobile communication terminal 60 can transmit and receive data to and from the mobile communication terminal 60 and control a hands-free call. For example, when a call is transmitted from the in-vehicle electronic device 20 to the communication terminal 70 of the other party, or when the incoming call is received from the communication terminal 70 of the other party to the mobile communication terminal 60, a ring tone is output from the speaker 40, or the incoming information is It is displayed on the display 50.

  FIG. 2 is a block diagram illustrating a configuration of the in-vehicle electronic device 20. The in-vehicle electronic device 20 outputs audio from the data communication unit 100 that transmits and receives data to and from the mobile communication terminal 60, an audio input unit 110 that converts audio captured via the microphone 30, and an audio signal. A voice output unit 120 for displaying, a display unit 130 for displaying various information on the display 50, a user input unit 140 for receiving input from a user, a storage unit 150 for storing programs and data, and a control for controlling each unit in accordance with the program. Part 160.

  FIG. 3 is a functional block diagram of the control unit 160. The control unit 160 is configured using, for example, a microcomputer, a microprocessor, a processing device, and the like, and includes a ROM and a RAM as necessary. The control unit 160 enables a hands-free call when the mobile communication terminal 60 is connected. Preferably, a program for controlling the hands-free call is stored in the storage unit 150, and the control unit 160 controls the hands-free call by executing this program.

  As shown in FIG. 3, the control unit 160 is set in the initialization unit 200 that initializes the call notification operation set in the past when the mobile communication terminal 60 is connected, and in the connected mobile communication terminal 60. Specification information extraction unit 210 that extracts the specification information that has been received, an incoming call notification setting unit 220 that performs settings related to an incoming call notification operation based on the extracted specification information, and an incoming call determination unit that determines whether there is an incoming signal from the mobile communication terminal 60 230, a caller number determination unit 240 that determines whether or not there is a caller number from the mobile communication terminal 60 (the telephone number of the communication terminal 70 as a call partner), and a display sequence control unit 250 that controls the incoming call display. . The display sequence control unit 250 includes a sequence for displaying an incoming call screen 1 indicating a message received and a sequence for displaying an incoming call screen 2 indicating a caller number in addition to a message indicating an incoming call. Display sequence control unit 250 controls the display sequence according to incoming call notification setting unit 220, incoming call determination unit 230, and caller number determination unit 240. Further, the display sequence control unit 250 performs an interrupt process so that the incoming screens 1 and 2 are displayed on a part or all of the screen displaying other information. Incoming screens 1 and 2 can be displayed on the screen.

  FIG. 4 is a block diagram illustrating a configuration example of the mobile communication terminal. The mobile communication terminal 60 transmits / receives data to / from the in-vehicle electronic device 20 and controls a call with another communication terminal 70 that is a call partner, and a voice input unit 310 that inputs a voice from a user. A voice output unit 320 that outputs voice, a display unit 330, a user input unit 340 that receives operations from the user, a storage unit 350 that stores data and programs related to the specifications of the mobile communication terminal, and controls each unit by executing a program And a control unit 360.

  FIG. 5 is a block diagram illustrating functions related to a hands-free call of the control unit 360 of the mobile communication terminal. As shown in the figure, the control unit 360 provides a specification information providing unit 400 that provides specification information in response to a request from the specification information extracting unit 210 when the mobile communication terminal 60 is connected to the in-vehicle electronic device 20. When the mobile communication terminal 60 receives an incoming call from the communication terminal 70, the incoming call identification / transmission unit 410 that identifies the incoming call and transmits an incoming signal to the vehicle-mounted electronic device 20 via the communication control unit 300; When the caller number of the communication terminal 70 is notified to the communication terminal 60, the caller number is identified and transmitted to the in-vehicle electronic device 20 via the communication control unit 300. Part 420.

  Whether to notify that there is an incoming call from the call partner, whether to notify the caller number of the call partner, or whether to notify the remaining battery level of the mobile communication terminal in the storage unit 350 of the mobile communication terminal 60 Specification information such as whether or not to notify the reception intensity of the mobile terminal device is set. These specification information can be changed by the user. As described above, the specification information providing unit 400 provides the specification information read from the storage unit 350 to the in-vehicle electronic device 20 when requested by the specification information extracting unit 210 of the in-vehicle electronic device 20.

  Next, the operation of the hands-free call system according to the first embodiment of the present invention will be described with reference to the flowchart of FIG. First, when the mobile communication terminal 60 is connected to the in-vehicle electronic device 20 for a hands-free call (step S101), the initialization unit 200 of the in-vehicle electronic device 20 confirms that the mobile communication terminal 60 is connected. The incoming call notification setting unit 220 is initialized (step S102). It should be noted that the initialization unit 200 determines that the identification information (SIM information, telephone number, etc.) of the connected mobile communication terminal 60 matches the mobile communication terminal identification number set in the incoming call notification setting unit 220, in other words. When there is no change from the previously connected mobile communication terminal, initialization is not necessarily required.

  Next, the specification information extraction unit 210 requests the portable communication terminal 60 to provide specification information. In response to this, the specification information providing unit 400 of the mobile communication terminal 60 transmits the specification information held by itself to the in-vehicle electronic device 20, and the specification information of the mobile communication terminal is extracted (step S103). The extracted specification information is provided to the incoming call notification setting unit 220, and the incoming call notification setting unit 220 automatically sets the incoming call notification operation based on the specification information (step S104). Here, the mobile communication terminal 60 includes the specification information “with incoming call notification” and “with caller ID notification”, and the incoming call notification setting unit 220 receives an incoming call when receiving an incoming signal from the mobile communication terminal 60 And a setting for notifying the caller ID when the caller ID is received. Thus, the initial setting of the hands-free call in the in-vehicle electronic device 20 is completed.

  Next, the incoming call determination unit 230 monitors whether there is an incoming call to the mobile communication terminal 60 (step S105). When there is an incoming call from the communication terminal 70 that is the communication partner to the mobile communication terminal 60, an incoming call signal is transmitted to the in-vehicle electronic device 20 by the incoming call identification / transmission unit 410 of the mobile communication terminal 60, and the incoming call determination unit 230 receives it. It is determined from the incoming signal that there is an incoming call. When the incoming call determination unit 230 determines that there is an incoming call, the control unit 160 causes the speaker 40 to output a ring tone (step S106). The ring tone can be transmitted from the mobile communication terminal 60 or can be generated in the in-vehicle electronic device 20. The display sequence control unit 250 receives the determination result that there is an incoming call from the incoming call determination unit 230, but does not display the incoming call screen 1 indicating the message that has received the incoming call at this time.

  Next, the caller number determination unit 240 determines whether a caller number is transmitted from the mobile communication terminal 60 (step S107). When the caller number discriminating unit 240 discriminates the caller number, the discrimination result is transmitted to the display sequence control unit 250, and the display sequence control unit 250 sends a message indicating that there is an incoming call and the caller number at this time. Is displayed on the display 50 (step S108).

On the other hand, if a certain period of time has elapsed since the incoming call determination unit 230 determines the incoming call, the caller number determination unit 240 obtains the caller number even if the caller number is available. It is determined that the determination is impossible, and the determination result is transmitted to the display sequence control unit 250. As a result, the display sequence control unit 250 displays the incoming call screen 1 indicating the incoming message on the display 50 (step S109). The fixed time is preferably
The elapsed time from when the caller number determination unit 240 previously received the incoming call signal until the caller number is received can be stored, and the maximum value can be used.

  FIG. 7B shows a display example of the incoming call notification method of the present embodiment. In the conventional case, as shown in FIG. 7A, the incoming call screen 1 is displayed when it is determined that there is an incoming call, and then the incoming call screen 2 is displayed when the caller number is determined. Is done. On the other hand, in this embodiment, when it is determined by the control of the in-vehicle electronic device 20 that there is an incoming call, the incoming call screen 1 is not displayed (or the incoming call screen 1 is skipped), and thereafter When the caller ID is determined, the incoming call screen 2 showing the incoming message and the caller ID is displayed.

  As described above, according to the present embodiment, since the incoming call and the caller number are displayed at the same time, the driver can see that the incoming call is occurring only by looking at the display once. The user number can be confirmed. As a result, the burden on the driver can be reduced.

  Next, another example of the hands-free call operation according to the present embodiment will be described. Depending on the specifications of the mobile communication terminal or the mobile phone network, the caller ID may not be available in the first place. Therefore, when the specification information from the mobile communication terminal 60 is “no caller number notification”, the incoming call notification setting unit 220 cannot obtain the caller number or can obtain the caller number. Set as unknown. Based on this setting, the display sequence control unit 250 causes the display 50 to display a message indicating that there is an incoming call without skipping the incoming call screen 1 as shown in FIG.

  Even when the caller ID cannot be obtained or is set to be unknown, the caller ID determination unit 240 is notified of the caller ID after the incoming call determination unit 230 receives the incoming signal. If the caller ID is notified, the fact is memorized, and when there is an incoming call next time, the incoming screen 1 is skipped and the incoming screen 2 is displayed. Also good.

  Furthermore, even if the mobile communication terminal has a specification for notifying the caller ID, the caller ID cannot be obtained if the communication terminal 70 that is the other party of call is set not to notify the caller ID. In order to avoid this, the display sequence control unit 250 performs timeout control to skip the incoming call screen 1. In other words, even if “caller number notification is present” is set by the incoming call notification setting unit 220, the caller number determination unit 240 receives the caller ID within the timeout period from the time when the incoming signal is received. If the call cannot be made, the display sequence control unit 250 promptly displays the incoming call screen 1 after the timeout time elapses. Preferably, as an example of setting the timeout time, the caller number discriminating unit 240 stores the elapsed time from the reception of the incoming call signal until the caller number is received, and uses the maximum value as the timeout time. be able to.

  Next, a second embodiment of the present invention will be described. In the first embodiment, an example is shown in which the mobile communication terminal 60 transmits the caller number to the in-vehicle electronic device 20. However, depending on the mobile communication terminal, when the caller number is received from the telephone line network, the mobile communication terminal 60 owns the caller number. There is one that searches a name corresponding to a caller number from a database to be transmitted and transmits the searched name to the in-vehicle electronic device 20.

  Therefore, in the second embodiment, the name of the other party is displayed in addition to the caller number as information for identifying the other party. That is, it is assumed that an incoming signal is transmitted from the mobile communication terminal 60, and then the name information retrieved by the caller number is transmitted to the in-vehicle electronic device 20. As shown in FIG. 8, when the mobile communication terminal 60 receives an incoming call while the road map screen by navigation is displayed on the display 50, the incoming call screen at this point is the same as in the first embodiment. 1 is skipped or hidden. Then, when the name information is transmitted from the mobile communication terminal 60, the in-vehicle electronic device 20 displays the incoming call screen 2 on which a message indicating that there is an incoming call and the name information “Taro Taro” of the other party is shown. . Of course, when the caller number is transmitted from the portable communication terminal 60 together with the name information, the caller number may be displayed on the incoming call screen 2 together with the name information.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the present invention described in the claims. Deformation / change is possible.

10: Hands-free call system 20: On-vehicle electronic device 30: Microphone 40: Speaker 50: Display 60: Mobile communication terminal 70: Communication terminal 200: Initialization unit 210: Specification information extraction unit 220: Incoming notification setting unit 230: Incoming call Discriminating unit 240: Caller number discriminating unit 250: Display sequence control unit 400: Specification information providing unit 410: Incoming call identification / transmission unit 420: Caller number identification / transmission unit

Claims (6)

A hands-free call system comprising an electronic device and a communication terminal having at least a call function and having communication means for communicating with the electronic device
The electronic device is
Voice input means for inputting voice and outputting voice signals;
Audio output means for outputting audio based on the audio signal;
Display means;
By transmitting the voice signal from the voice input means to the call partner via the communication means, receiving the voice signal from the call partner via the communication means, and outputting it from the voice output means, the communication means Control means for enabling hands-free calling,
The control means includes determination means for determining whether or not identification information for identifying the call partner is available from the communication means based on information from the communication means ,
When the determination means determines that the identification information can be obtained by the determination means, the control means receives incoming information indicating that the communication means has received an incoming call, and identification information for identifying the call partner. Is received at a time interval, the incoming call information is hidden until the identification information is received, and after receiving the identification information, the incoming call information and the identification information are simultaneously displayed on the display means, When it is determined by the determining means that the identification information is not available, the incoming information is displayed on the display means when the incoming information is received , and the identification information can be obtained by the determining means Even if it is determined that the identification information cannot be received within a certain time from the time when the incoming information is received, the determination means Is determined not to be available identifying information, the control unit displays the incoming call information after the predetermined time based on the determination, hands-free communication system. The control means displays the incoming information on the display means when receiving the incoming information, and displays the incoming information and the identification information on the display means when receiving the identification information. 2. The hands-free call system according to claim 1, wherein the first step is not executed when the display sequence includes a second step. The determination means stores an elapsed time from a time when the incoming information is received in the past to a time when the identification information is received, and the determination means sets the maximum value of the elapsed time as the certain time. hands-free communication system according to 1. It said determining means, hands-free communication system according judges in claim 1 whether said identification information is available on the basis of the specification information about the presence or absence of notifications set caller number in the communication means. The hands-free call system according to any one of claims 1 to 4 , wherein the identification information is a telephone number of a call partner. The hands-free call system according to any one of claims 1 to 5 , wherein the identification information is name information of a call partner.

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