JP2014140248A - Short range wireless communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adequately realize a function that transfers and outputs not only sound data stored in a communication partner device but also sound data stored in a server at a communication network side.SOLUTION: An on-vehicle device 2 transmits and receives control data by AVRCP, and transfers sound data by A2DP to output if it transfers and outputs the sound data stored in a mobile phone 3, and on the other hand, it employs SPP instead of AVRCP, and transmits and receives control data by SPP and transfers sound data by A2DP to output if the sound data stored in a server 36 at a communication network 35 side is sequentially buffered to the mobile phone 3 and transferred and output. Regardless of a command defined by AVRCP, any command and any data (payload) can be transmitted and received by SPP.

Description

  The present invention relates to a sound data transfer protocol that prescribes transfer of sound data, a control data transfer protocol that prescribes transfer of control data related to control of sound data, and a specific data communication protocol that prescribes data communication. The present invention relates to a short-range wireless communication device including a connection means that can be connected to a communication partner device through the communication device.

  A short-range wireless communication device having a short-range wireless communication function is a sound data transfer protocol that connects a short-range wireless communication line with a communication partner device such as a mobile phone and regulates transfer of sound data such as music data And a control data transfer protocol that regulates transfer of control data related to control of sound data is connected to the communication partner apparatus. Then, the short-range wireless communication device transmits / receives control data (various commands such as a play command, a pause command, a stop command, a song name, etc.) to and from the communication partner device using the control data transfer protocol, and transmits sound data to the communication partner. The data is transferred from the device by the sound data transfer protocol and output. For example, in Patent Document 1, A2DP (Advanced Audio Distribution Profile) is defined as a sound data transfer protocol for defining transfer of sound data according to the communication standard of Bluetooth (registered trademark), and control data related to control of sound data is defined. It is disclosed that AVRCP (Audio / Video Remote Control Profile) is defined as a control data transfer protocol that regulates the transfer of.

JP 2008-273370 A

  By the way, in the short-range wireless communication device, the following two modes are conceivable as modes in which sound data is transferred from the communication partner device and output. The first mode is a mode in which sound data stored in the nonvolatile storage unit of the communication partner device is transferred from the communication partner device and output. The second mode is a mode in which sound data stored in the nonvolatile storage unit of the server on the communication network side is sequentially buffered by the communication partner device and transferred from the communication partner device (for example, Internet radio). Sound data streaming, etc.).

  In the former mode, as described above, A2DP is connected as the sound data transfer protocol and AVRCP is connected as the control data transfer protocol, and control data is transmitted to and received from the communication partner device by AVRCP. It is guaranteed that the stored sound data is transferred from the communication partner device and output. However, in the latter mode, even if A2DP is connected as the sound data transfer protocol and AVRCP is connected as the control data transfer protocol, the sound data stored in the server on the communication network side is transferred from the communication partner device. It is difficult to provide sufficient functions (services) for output.

  The present invention has been made in view of the above circumstances, and its purpose is not only to properly realize a function of transferring sound data stored in a communication partner apparatus from the communication partner apparatus and outputting it. Another object of the present invention is to provide a short-range wireless communication device capable of appropriately realizing a function of transferring sound data stored in a server on the communication network side from the communication partner device and outputting the same.

  According to the first aspect of the present invention, the connection means defines a sound data transfer protocol that regulates transfer of sound data, a control data transfer protocol that regulates transfer of control data related to control of sound data, and data communication. A specific data communication protocol can be connected to a communication partner apparatus through a short-range wireless communication line. The control means includes a first mode for transferring the first sound data stored in the non-volatile storage means of the communication counterpart device from the communication counterpart device, and a second mode stored in the non-volatile storage means of the server on the communication network side. One of the second modes for transferring the sound data from the communication partner apparatus is selected. The sound data output means outputs the sound data transferred from the communication partner apparatus by the sound data transfer protocol.

  Here, when the control means determines that the first mode is selected, the control means relates to the control of the first sound data in a state where the control data transfer protocol and the sound data transfer protocol are connected to the communication partner device. The first control data is transmitted / received to / from a communication partner device using a control data transfer protocol, and the first sound data is transferred from the communication partner device using a sound data transfer protocol. On the other hand, when the control means determines that the second mode is selected, the control means relates to the control of the second sound data in a state where the sound data transfer protocol and the specific data communication protocol are connected to the communication partner device. The second control data is transmitted / received to / from a communication partner device using a specific data communication protocol, and the second sound data is transferred from the communication partner device using a sound data transfer protocol.

  As a result, if the second sound data stored in the server on the communication network side cannot be sufficiently provided with the function of transferring and outputting the second sound data from the communication partner device, it is specified instead of the control data transfer protocol. The data communication protocol is adopted. The second control data is not transmitted / received to / from the communication partner device using the control data communication protocol, but the second control data is transmitted / received to / from the communication partner device using the specific data communication protocol. The second sound data stored in the server can be transferred from the communication partner device and output. As a result, not only can the sound data stored in the communication partner device be properly transferred and output from the communication partner device, but also the sound data stored in the server on the communication network side can be used. The function of transferring and outputting from the apparatus can also be appropriately realized.

  According to the invention described in claim 2, the control means selects the first mode in a state where the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol are connected to the communication partner device. If it is determined, the first control data is transmitted / received to / from the communication partner device using the control data transfer protocol, and the first sound data is transferred from the communication partner device using the sound data transfer protocol. On the other hand, if it is determined that the second mode is selected, the control means transmits / receives the second control data to / from the communication partner device using a specific data communication protocol, and the second sound data is transmitted from the communication partner device to the sound data. Transfer using a transfer protocol.

  Thereby, when switching from the first mode to the second mode or when switching from the second mode to the first mode, the control data transfer protocol and the specific data communication protocol are not disconnected or connected. The period during which the output of the sound data is interrupted can be minimized, and the switching from the first mode to the second mode and the switching from the second mode to the first mode can be performed smoothly.

  According to the invention described in claim 3, the control means selects the first mode in a state where the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol are connected to the communication partner device. If it is determined that the connection is established, the second control data based on the specific data communication protocol is invalidated while the connection of the specific data communication protocol is continued, and the first control data is transferred to the communication partner device using the control data transfer protocol. The first sound data is transferred from the communication partner apparatus by the sound data transfer protocol.

  Thereby, when switching from the first mode to the second mode, since the specific data communication protocol is already connected, the second control data based on the specific data communication protocol being invalidated may be validated. . When switching from the first mode to the second mode, the period during which the output of the sound data is interrupted can be minimized, and the switching from the first mode to the second mode can be performed smoothly.

  According to the invention described in claim 4, the control means selects the second mode in a state where the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol are connected to the communication partner device. If it is determined that the control data transfer protocol is still connected, the first control data based on the control data transfer protocol is invalidated while the second control data is transferred between the communication partner device using a specific data communication protocol. The second sound data is transferred from the communication partner apparatus using a sound data transfer protocol.

  Thus, when switching from the second mode to the first mode, the control data transfer protocol is already connected, and therefore the first control data based on the invalidated control data transfer protocol may be validated. When switching from the second mode to the first mode, the period during which the output of the sound data is interrupted can be minimized, and the switching from the second mode to the first mode can be performed smoothly.

  According to the fifth aspect of the present invention, the connection means can connect a hands-free call protocol that defines a hands-free call to / from a communication partner device, and the control means transmits the hands-free call protocol to the communication partner. After the connection with the device, a specific data communication protocol is first connected with the communication partner device, and then the control data transfer protocol and the sound data transfer protocol are connected with the communication partner device.

  Thereby, after connecting the hands-free call protocol, a specific data communication protocol can be quickly connected, and a function based on the specific data communication protocol can be quickly realized.

  According to the sixth aspect of the present invention, the connection means can connect a hands-free call protocol that defines a hands-free call with a communication partner apparatus, and the control means transmits the hands-free call protocol to the communication partner. After the connection with the device, the control data transfer protocol and the sound data transfer protocol are first connected with the communication partner device, and then the specific data communication protocol is connected with the communication partner device.

  Depending on the specifications of the communication partner device, if the time from the completion of the hands-free call protocol connection processing to the transmission of the control data transfer protocol connection request exceeds a predetermined time, the control data transfer protocol connection processing is performed. Some models do not transfer sound data using the sound data transfer protocol even when completed. However, after connecting the hands-free call protocol, the control data transfer protocol and the sound data transfer protocol are connected first, and then the specific data communication protocol is connected later, thereby completing the connection process of the hands-free call protocol. It is possible to prevent the time from transmission of the connection request for the control data transfer protocol from exceeding a predetermined time. Even if the communication partner apparatus has the above-mentioned specifications, it can be handled.

  According to the seventh aspect of the present invention, the connection means can connect a hands-free call protocol that defines a hands-free call to / from a communication partner device, and the control means transmits the hands-free call protocol to the communication partner. When the communication partner device is a specific model after connecting with the device, the control data transfer protocol and the sound data transfer protocol are first connected with the communication partner device, and then the specific data communication protocol is connected. If the communication partner device is not a specific model, the control data transfer protocol and the sound data transfer protocol are connected after the specific data communication protocol is connected to the communication partner device. Is connected to the communication partner device.

  As a result, after connecting the hands-free call protocol, depending on whether the communication partner device is a specific model or not, the control data transfer protocol and the sound data transfer protocol are connected first, and then the specific data communication protocol is set. It is possible to select whether to connect or to connect a control data transfer protocol and a sound data transfer protocol after connecting a specific data communication protocol first.

  According to the invention described in claim 8, the control means receives the connection request of the control data transfer protocol from the communication partner apparatus and rejects it after connecting the hands-free call protocol with the communication partner apparatus. In this case, the communication partner apparatus is requested to connect the control data transfer protocol so that the control data transfer protocol is preferentially connected.

  As a result, even if the control data transfer protocol connection request from the communication partner apparatus is received and rejected, the control data transfer protocol can be connected by requesting the control data transfer protocol connection to the communication partner apparatus. .

  According to the ninth aspect of the present invention, when the control means receives the control data transfer protocol connection request from the communication partner apparatus after connecting the hands-free call protocol to the communication partner apparatus. The control data transfer protocol connection request from the communication partner device is permitted so that the control data transfer protocol is preferentially connected.

  Accordingly, the control data transfer protocol can be connected by permitting the control data transfer protocol connection request from the communication partner apparatus.

  According to the tenth aspect of the present invention, the connection means can connect a hands-free call protocol that defines a hands-free call to / from a communication partner device, and the control means includes a hands-free call protocol and a specific If it is determined that the first mode is selected after the data communication protocol is connected to the communication partner apparatus, the control data transfer protocol and the sound data transfer protocol are connected to the communication partner apparatus, If it is determined that the mode is selected, the sound data transfer protocol is connected to the communication partner apparatus.

  Thereby, after connecting the hands-free call protocol and the specific data communication protocol, depending on which of the first mode and the second mode is selected, the control data transfer protocol and the sound data transfer protocol are connected, It is possible to select whether to connect the sound data transfer protocol.

  According to the eleventh aspect of the present invention, the connection means can also connect a hands-free call protocol that defines a hands-free call to the communication partner apparatus, and the control means can connect the hands-free call protocol to the communication partner. If it is determined that the first mode has been selected after connecting with the device, the control data transfer protocol and the sound data transfer protocol are connected with the communication partner device, and the second mode is selected. If it is determined, the sound data transfer protocol and the specific data communication protocol are connected to the communication partner apparatus.

  Thus, after connecting the hands-free call protocol, depending on whether the first mode or the second mode is selected, the control data transfer protocol and the sound data transfer protocol are connected, or the sound data transfer protocol and the identification are specified. It is possible to select whether to connect the data communication protocol.

  According to the twelfth aspect of the present invention, the storage means can store the pre-power-off mode indicating which one of the first mode and the second mode has been selected before the short-range wireless communication device is powered off. And the control unit determines that the first mode is selected when the short-range wireless communication device is turned on when the mode before power-off stored in the storage unit indicates the first mode. When the mode before power-off shows the second mode, it is determined that the second mode is selected.

  Thereby, the mode after power-on of the short-range wireless communication device can follow the mode before power-off of the short-range wireless communication device, and the mode before power-off of the short-range wireless communication device is the first mode. If it exists, the mode after power-on of the short-range wireless communication device can be set as the first mode, and the first sound data can be transferred from the communication partner device by the sound data transfer protocol. Also, if the short distance wireless communication device is in the second mode before the power is turned off, the short distance wireless communication device is turned on after the power is turned on, and the second sound data is transferred from the communication partner device to the sound data. It can be transferred by protocol.

  According to the invention described in claim 13, the control means connects the hands-free call protocol to the communication partner device, and the control data transfer protocol and the sound data transfer protocol to another communication partner device. If it is determined that the sound data transfer source is switched from another communication partner device to the communication partner device in the connected state, the control data transfer protocol and sound data transfer connected to another communication partner device Disconnect the protocol, disconnect the hands-free call protocol connected to the communication partner device, reconnect the disconnected hands-free call protocol to the communication partner device, and then control first Connect the data transfer protocol and sound data transfer protocol to the communication partner device and communicate with a specific data communication protocol later. It is connected between the hand apparatus.

  Thus, the first sound data stored in the non-volatile storage means of another communication partner apparatus is transferred from the other communication partner apparatus and output, and stored in the non-volatile storage means of the server on the communication network side. It is possible to switch to a mode in which the second sound data being transmitted is transferred from the communication partner device and output.

  According to the fourteenth aspect of the present invention, the control means connects the hands-free call protocol to the communication partner apparatus, and the control data transfer protocol and the sound data transfer protocol are exchanged with another communication partner apparatus. If it is determined that the sound data transfer source is switched from another communication partner device to the communication partner device in the connected state, the control data transfer protocol and sound data transfer connected to another communication partner device Disconnect the protocol, send the connection request for the sound data transfer protocol to the communication partner device, connect the sound data transfer protocol to the communication partner device, and connect the specific data communication protocol to the communication partner device. Connect with.

  Thus, the first sound data stored in the non-volatile storage means of another communication partner apparatus is transferred from the other communication partner apparatus and output, and stored in the non-volatile storage means of the server on the communication network side. It is possible to switch to a mode in which the second sound data being transmitted is transferred from the communication partner device and output. Moreover, in this case, the hands-free call protocol connected to the communication partner device can be switched without disconnecting, and the hands-free call can be continued even during a hands-free call by the communication partner device. It is possible to switch while still.

  According to the fifteenth aspect of the present invention, the control means connects the hands-free call protocol to the communication partner apparatus, and the control data transfer protocol and the sound data transfer protocol are exchanged with another communication partner apparatus. If it is determined that the sound data transfer source is switched from another communication partner device to the communication partner device in the connected state, the control data transfer protocol and sound data transfer connected to another communication partner device Disconnect the protocol, disconnect the hands-free call protocol connected to the communication partner device, reconnect the disconnected hands-free call protocol to the communication partner device, control data transfer protocol and The sound data transfer protocol is connected to the communication partner device.

  As a result, the first sound data stored in the non-volatile storage means of another communication partner apparatus is stored in the non-volatile storage means of the communication partner apparatus from the mode in which the first sound data is transferred from the other communication partner apparatus and output. The first sound data can be switched to a mode in which the first sound data is transferred from the communication counterpart device and output.

  According to the sixteenth aspect of the present invention, the control means connects the hands-free call protocol to the communication partner apparatus, and the control data transfer protocol and the sound data transfer protocol are exchanged with another communication partner apparatus. If it is determined that the sound data transfer source is switched from another communication partner device to the communication partner device in the connected state, the control data transfer protocol and sound data transfer connected to another communication partner device Disconnect the protocol, connect the control data transfer protocol with the communication partner device, and send the connection request of the sound data transfer protocol to the communication partner device, so that the sound data transfer protocol is exchanged with the communication partner device. Connect.

  As a result, the first sound data stored in the non-volatile storage means of another communication partner apparatus is stored in the non-volatile storage means of the communication partner apparatus from the mode in which the first sound data is transferred from the other communication partner apparatus and output. The first sound data can be switched to a mode in which the first sound data is transferred from the communication counterpart device and output. Moreover, in this case, the hands-free call protocol connected to the communication partner device can be switched without disconnecting, and the hands-free call can be continued even during a hands-free call by the communication partner device. It is possible to switch while still.

  According to the invention described in claim 17, the control means transfers the sound data from the communication partner device of the first sound data in a state where the control data transfer protocol and the sound data transfer protocol are connected to the communication partner device. When it is determined that a transfer request to the protocol has occurred, a request to open a communication path for sound data is transmitted from the connection means to the communication partner device after the first set time has elapsed since the transfer request has occurred, and the transfer is performed. A reproduction command is transmitted from the connection means to the communication partner apparatus after a second set time longer than the first set time elapses from the time when the request is generated.

  Depending on the specifications of the communication partner device, the sound data communication path may be closed and not opened even after the connection of the sound data transfer protocol is completed. In this state, that is, even if the communication partner device does not open the communication path and transmits a playback command to the communication partner device, the communication partner device does not open the communication path, so the communication partner device The data cannot be transferred. As a result, a phenomenon occurs in which the first sound data is output from the communication partner apparatus. On the other hand, by sending a request to open the communication path of the sound data to the communication partner apparatus before transmitting the playback command to the communication partner apparatus, the sound data communication path is changed when the playback command is transmitted to the communication partner apparatus. You can keep it open. As a result, the communication partner apparatus can transfer the first sound data, and the first sound data transferred from the communication partner apparatus can be output.

  According to the invention described in claim 18, the control means transmits the sound data from the communication partner device of the second sound data in a state where the specific data communication protocol and the sound data transfer protocol are connected to the communication partner device. If it is determined that a transfer request to the transfer protocol has occurred, a request to open a sound data communication path is transmitted from the connection means to the communication partner device after the first set time has elapsed since the transfer request occurred. The reproduction command is transmitted from the connection means to the communication partner apparatus after a second set time longer than the first set time has elapsed since the transfer request was generated.

  Similarly to the above-described aspect, the transmission command is transmitted to the communication partner apparatus by transmitting a request for opening the communication path of the sound data to the communication partner apparatus before transmitting the reproduction command to the communication partner apparatus. At this stage, the sound data communication channel can be opened. As a result, the communication partner apparatus can transfer the second sound data, and the second sound data transferred from the communication partner apparatus can be output.

Functional block diagram showing an embodiment of the present invention Flow chart showing processing executed by in-vehicle device Sequence Diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram 3 equivalent diagram

  Hereinafter, an embodiment in which the present invention is applied to a BT-compatible in-vehicle device (hereinafter simply referred to as an in-vehicle device) having a Bluetooth (registered trademark) (hereinafter referred to as BT) communication function will be described with reference to the drawings. . Here, a BT-compatible mobile phone (hereinafter simply referred to as a mobile phone) having a BT communication function is brought into the vehicle interior of a vehicle in which the in-vehicle device is mounted. Is in a state where BT communication is possible.

  The BT communication system 1 includes an in-vehicle device 2 (corresponding to a short-range wireless communication device according to the present invention) mounted on a vehicle and a mobile phone 3 (corresponding to a communication partner device according to the present invention) brought into the vehicle interior. It consists of. The in-vehicle device 2 includes a control unit 4 (corresponding to control means in the present invention), a BT module 5 (corresponding to connection means in the present invention), a USB (Universal Serial Bus) module 6, and a nonvolatile storage unit 7. (Corresponding to storage means in the present invention), a volatile storage unit 8, an audio processing unit 9, a display control unit 10, an operation input unit 11, a signal input unit 12, and the like. The control unit 4, USB module 6, nonvolatile storage unit 7, audio processing unit 9, display control unit 10, operation input unit 11, and signal input unit 12 are physically mounted on the control board 13. Has been. The BT module 5 is physically mounted on a BT module substrate 14 that is a separate member from the control substrate 13. The control unit 4 and the BT module 5 are connected by USB.

  The control unit 4 includes a CPU, a RAM, a ROM, an I / O bus, and the like that are well-known microcomputers, and controls overall operations such as communication operation and data management operation of the in-vehicle device 2. The BT module 5 has a function of connecting a BT communication line (corresponding to a short-range wireless communication line in the present invention) with a BT module of the cellular phone 3 described later, and executing BT communication through the BT communication line. The BT module 5 defines HFP (Hands Free Profile) (corresponding to the hands-free call protocol in the present invention) and transfer of sound data as a plurality of profiles specified in the BT communication standard. A2DP (Advanced Audio Distribution Profile) (corresponding to the sound data transfer protocol referred to in the present invention), AVRCP (Audio / Video Remote Control Profile) (control data referred to in the present invention) that regulates transfer of control data related to sound data control Equivalent to a transfer protocol), SPP (Serial Port Profile) that defines virtual serial port data communication (corresponding to a specific data communication protocol in the present invention), DUN (Dial-up) that defines dial-up connection to the Internet Networking Profile), MAP (Message Access Profile) that regulates the transfer of email data, phone book PBAP (Phone Book Access Profile) that regulates data transfer, OPP (Object Push Profile) that also regulates transfer of phone book data, and the like can be connected simultaneously (so-called multi-connection). These HFP, A2DP, AVRCP, SPP, DUN, MAP, PBAP, OPP, etc. mean data communication protocols defined for each function.

  The USB module 6 has a connection terminal 6 a to which the connection terminal 15 a of the USB connection cable 15 can be attached and detached. In the USB module 6, one connection terminal 15a of the USB connection cable 15 is connected to the connection terminal 6a, and the other connection terminal 15b of the USB connection cable 15 is connected to a connection terminal of the USB module of the mobile phone 3 described later. In this state, a USB communication line is connected to the USB module of the mobile phone 3 and the USB communication is performed through the USB communication line.

  The nonvolatile storage unit 7 has a storage area capable of storing various data. In this case, if the BT module 5 connects the MAP to the BT module of the mobile phone 3, the e-mail data transferred from the mobile phone 3 to the BT module 5 (sender information that can specify the destination of the e-mail, Received date and time information that can specify the date and time when the e-mail was received by the mobile phone 3, type information that can specify the type of e-mail, such as subject information that can specify the subject of the e-mail entered by the sender, etc. is non-volatile. It is stored in the storage unit 7. If the BT module 5 connects the PBAP to the BT module of the mobile phone 3, the phone book data transferred from the mobile phone 3 to the BT module 5, the transmission operation from the in-vehicle device 2, or the in-vehicle device 2 Between the mobile phone 3 connected to the HFP between the mobile phone 3 and the call history data indicating the correspondence between the call origination time and the outgoing phone number, and the mobile phone 3 connected to the in-vehicle device 2 The non-volatile storage unit 7 stores the incoming call history data indicating the correspondence between the incoming time and the incoming telephone number related to the incoming operation. Immediately before the power of the apparatus is turned off, information indicating the sound data transferred from the mobile phone 3 (mode before power shut-off in the present invention) is stored in the nonvolatile storage unit 7. The volatile storage unit 8 has a storage area that can store the sound data stream-transferred from the mobile phone 3 while buffering it.

  The sound processing unit 9 is connected to a microphone 16 disposed in a portion of the vehicle interior where it is easy to collect the sound emitted by the user, such as in the vicinity of the steering wheel, and is disposed outside the in-vehicle device 2. The audio amplifier 17 is connected. Speakers 18 a and 18 b (corresponding to sound data output means in the present invention) are connected to the audio amplifier 17.

  In a state where the BT module 5 and the BT module of the mobile phone 3 described later are connected to the HFP between the two, the voice processing unit 9 inputs the voice uttered by the user from the microphone 16 as transmission voice data. The input transmission voice data is subjected to voice processing and output to the BT module 5. In addition, when receiving voice data from the BT module 5, the voice processing unit 9 outputs the received voice data to the audio amplifier 17.

  Further, the voice processing unit 9 is configured so that the BT module 5 and the BT module of the cellular phone 3 described later are connected to each other by the A2DP and AVRCP from the BT module of the cellular phone 3. The sound data transferred to 5 is output to the audio amplifier 17. The audio processing unit 9 also transfers the USB module 6 from the USB module of the mobile phone 3 to the USB module 6 through the USB communication line when the USB module 6 and the USB module of the mobile phone 3 to be described later can perform USB communication. The transferred sound data is output to the audio amplifier 17.

  When receiving the received voice data and sound data from the voice processing unit 9, the audio amplifier 17 amplifies the received received voice data and sound data and outputs them from the speakers 18a and 18b. A tuner deck 19 is also connected to the audio amplifier 17. When the music data reproduced from the recording medium by the tuner deck 19 is input from the tuner deck 19, the audio amplifier 17 also amplifies the input music data and outputs it from the speakers 18a and 18b.

  The display device 20 includes a display device 21 that displays various display screens, and an operation device 22 that forms a touch switch on the display screen. When the display command signal is input from the control unit 4, the display control unit 10 controls the display operation of the display device 21 in the display device 20 based on the input display command signal. When the operation input signal is input from the operation device 22 in response to the user operating the touch switch formed on the display screen, the operation input unit 11 outputs the input operation detection signal to the control unit 4. The control unit 4 analyzes the operation detection signal input from the operation input unit 11 and identifies the user operation.

  The signal input unit 12 is connected to an ACC (accessory) switch mounted on the vehicle. When the ACC signal output from the ACC switch is input, the input ACC signal is output to the control unit 4. The control unit 4 turns on and off the apparatus power based on the on / off of the ACC signal input from the signal input unit 12. That is, the control unit 4 turns on the apparatus power at the timing when the ACC signal transitions from off to on (activates the in-vehicle apparatus 2), and turns off the apparatus power at the timing when the ACC signal transitions from on to off (in-vehicle The device 2 is stopped). Note that the control unit 4 stores the type of sound data transferred from the mobile phone 3 immediately before the device power is turned off in the nonvolatile storage unit 7.

  The cellular phone 3 includes a control unit 43, a telephone communication unit 24, a BT module 25, a USB module 26, a key input unit 27, a non-volatile storage unit 28 (non-volatile storage means of the communication partner device referred to in the present invention). ), A volatile storage unit 29, a display unit 30, a microphone 31, a speaker 32, a power supply unit 33, and the like.

  The control unit 43 includes a CPU, a RAM, a ROM, an I / O bus, and the like that are well-known microcomputers, and controls overall operations such as communication operations and data management operations of the mobile phone 3. The telephone communication unit 24 performs telephone communication with the communication network 35. The communication network 35 includes facilities for providing a well-known mobile phone communication service such as a mobile phone base station and a base station controller. The BT module 25 has a function of connecting a BT communication line to the above-described BT module 5 of the in-vehicle device 2 and executing BT communication through the BT communication line. The BT module 25 is configured so that HFP, A2DP, AVRCP, SPP, DUN, MAP, PBAP, OPP, and the like can be simultaneously connected as a plurality of profiles defined by the BT communication standard.

  The USB module 26 has a connection terminal 26 a to which the connection terminal 15 b of the USB connection cable 15 can be attached and detached. In the USB module 26, one connection terminal 15a of the USB connection cable 15 is connected to the connection terminal 6a of the USB module 6 of the in-vehicle device 2, and the other connection terminal 15b of the USB connection cable 15 is connected to the connection terminal 26a. In this state, a USB communication line is connected to the USB module 6 of the in-vehicle apparatus 2 and USB communication is performed through the USB communication line.

  The key input unit 27 includes various keys that can be operated by the user, and outputs an operation detection signal to the control unit 43 in response to the user operating the key. The control unit 43 analyzes the operation detection signal input from the key input unit 27 and identifies the user operation.

  The nonvolatile storage unit 28 has a storage area capable of storing various data such as sound data. The volatile storage unit 29 has a storage area in which sound data streamed from the server 36 on the communication network 35 side can be stored while being buffered. When the display command signal is input from the control unit 43, the display unit 30 displays various display screens based on the input display command signal. In addition, when the voice uttered by the user is input from the microphone 31 as transmission voice data, the control unit 43 performs voice processing on the input transmission voice data. In addition, when the reception voice data is input from the telephone communication unit 24, the control unit 43 outputs the received reception voice data from the speaker 32 as a voice. The power supply unit 33 supplies power discharged from the battery 34 detachable from the main body to each functional block as operating power.

  In the configuration described above, the following two modes are conceivable as modes in which the control unit 4 outputs the sound data transferred from the mobile phone 3 in the in-vehicle device 2. In the first mode, in the in-vehicle device 2, sound data (music data, etc.) (corresponding to the first sound data in the present invention) stored in the nonvolatile storage unit 28 of the mobile phone 3 is transmitted from the BT module 25. This is an aspect (corresponding to the first aspect in the present invention, BT audio) that is transferred to the BT module 5 and output from the speakers 18a, 18b of the in-vehicle device 2. In the second aspect, in the in-vehicle device 2, the sound data (corresponding to the second sound data in the present invention) stored in the nonvolatile storage unit of the server 36 on the communication network 35 side is stored in the volatile property of the mobile phone 3. A mode in which the data is transferred from the BT module 25 to the BT module 5 while being sequentially buffered in the storage unit 29, and is output from the speakers 18a and 18b while being sequentially buffered in the volatile storage unit 8 of the in-vehicle device 2 (the second in the present invention). Corresponding to the embodiment). As an example of the second mode, for example, a mode of outputting sound data of Internet radio (content that delivers an audio program by Internet protocol) can be mentioned.

  In this case, in the former mode in which the in-vehicle device 2 transfers sound data stored in the mobile phone 3 from the BT module 25, the sound data is transferred by A2DP, and a control command (playback command, temporary command) defined by AVRCP is transmitted. A stop command, a stop command, etc.) can be transmitted and received by AVRCP, and the user can instruct various controls relating to sound data. However, in the latter mode in which the in-vehicle device 2 transfers the sound data stored in the server 36 on the communication network 35 side from the BT module 25 while sequentially buffering the sound data in the volatile storage unit 29 of the mobile phone 3, the AVRCP is used. There is a situation in which it is not sufficient to transmit and receive a prescribed control command by AVRCP, and the user cannot instruct various controls regarding sound data.

  In addition, the mobile phone 3 that is the communication partner of the in-vehicle device 2 can be broadly classified into the following two types according to the specifications regarding the behavior of transmitting the AVRCP (and A2DP) connection request. Thus, the point that the model of the mobile phone 3 can be roughly classified according to the specification, and the point that the model can be specified as a normal model or a specific model are connected to various mobile phones 3. Based on the results of the test.

(A) A model that does not transmit an AVRCP connection request to the in-vehicle device 2 after completing the HFP connection processing (ordinary model)
(B) Model that transmits an AVRCP connection request to the in-vehicle device 2 after completing the HFP connection process (specific model)
That is, if the mobile phone 3 that is the communication partner is a specific model, the in-vehicle device 2 receives the AVRCP connection request from the mobile phone 3 of the specific model when the HFP connection process is completed. At this time, since the in-vehicle device 2 is not in a state of permitting a connection request from the communication partner side, even if an AVRCP connection request is received from the mobile phone 3 of a specific model, it is rejected without permitting the AVRCP connection request. Then, the AVRCP connection refusal is transmitted to the mobile phone 3 of a specific model. In this case, when the in-vehicle device 2 transmits the AVRCP connection refusal to the specific model mobile phone 3, the in-vehicle device 2 transmits an AVRCP connection request to the specific model mobile phone 3 again, and the AVRCP connection processing is performed. Even if completed, the cellular phone 3 does not transmit an A2DP connection request to the in-vehicle device 2, and even after that, even if the in-vehicle device 2 instructs to output sound data (Internet radio, BT audio), the cellular phone 3 Does not transmit the A2DP connection request to the in-vehicle device 2. As a result, a phenomenon has occurred in which sound data is not output from the speakers 18 a and 18 b of the in-vehicle device 2 but sound data is output from the speaker 32 of the mobile phone 3.

  As a result of investigating this cause, if the time from completion of the HFP connection processing to transmission of the AVRCP connection request exceeds a predetermined time (for example, 3 seconds), the cellular phone 3 It was found that no A2DP connection request was sent. That is, it is also considered that the AVRCP connection request from the mobile phone 3 was rejected a plurality of times within a predetermined time after completing the HFP connection processing. As a result of a connection test with a specific model, it has been found that the above-described phenomenon occurs when it takes about 3 seconds or more for the in-vehicle device 2 to transmit the AVRCP connection request after completing the HFP connection processing.

  On the other hand, if the mobile phone 3 that is the communication partner is a normal model, the in-vehicle device 2 does not receive an AVRCP connection request from the normal model mobile phone 3 when the HFP connection process is completed. Therefore, when the in-vehicle device 2 transmits an AVRCP connection request to the mobile phone 3 and completes the AVRCP connection processing, the mobile phone 3 transmits an A2DP connection request to the in-vehicle device 2, and the in-vehicle device 2 permits the A2DP connection request. The A2DP connection process is completed. Even if the A2DP connection request is not transmitted when the AVRCP connection process is completed, the mobile phone 3 transmits the A2DP connection request to the in-vehicle device 2 when the in-vehicle device 2 instructs to output sound data. Since the in-vehicle device 2 permits the A2DP connection request and the A2DP connection process is completed, the sound data is transferred by A2DP, and the sound data is output from the speakers 18a and 18b of the in-vehicle device. Therefore, the sound data is transferred by A2DP regardless of the time from the completion of the HFP connection process to the transmission of the AVRCP connection request.

  Next, the operation of the above configuration will be described with reference to FIGS. FIG. 2 is a flowchart showing processing executed by the control unit 4 of the in-vehicle device 2. 3 to 11 are sequence diagrams showing processing between the in-vehicle device 2 and the communication partner device.

  In the in-vehicle device 2, the control unit 4 executes the main processing when the device power of the in-vehicle device 2 is on (ACC switch is on), and the device connection power is turned on as a sub-process in the main processing. Run immediately.

  When the control unit 4 shifts from the main process to the profile connection process and starts the profile connection process, for example, when the BT communication line is connected, the identification information (manufacturer and model) of the mobile phone 3 notified from the BT module 25 is connected. Based on the identification code etc. that can be specified, it is determined whether the mobile phone 3 that is the communication partner is a normal model or a specific model (step S1). Specifically, the control unit 4 stores the identification information of the mobile phone 3 corresponding to the specific model in the nonvolatile storage unit 7 in advance by a connection test with the mobile phone 3, so that the mobile phone 3 as a communication partner can store the identification information. By comparing the notified identification information with the identification information stored in the nonvolatile storage unit 7, it may be determined whether the mobile phone 3 as the communication partner is a normal model or a specific model.

  When the control unit 4 determines that the mobile phone 3 that is the communication partner is a normal model, as shown in FIG. 3, the control unit 4 outputs an HFP connection request to the BT module 5 (step S101), and sends the HFP to the BT module 5 and the BT module. HFP connection processing for connection with the module 25 is executed (step S2).

  When the control unit 4 is notified of the completion of the HFP connection from the BT module 5 (step S102) and determines that the HFP connection processing has been completed, the control unit 4 outputs an SPP connection request to the BT module 5 (step S103). And SBT connection processing for connecting the BT module 25 (step S3). In this case, the mobile phone 3 which is a normal model of the communication partner does not transmit the AVRCP connection request to the in-vehicle device 2 after completing the HFP connection process.

  When the control unit 4 is notified of the completion of the SPP connection from the BT module 5 (step S104) and determines that the SPP connection processing is completed, the control unit 4 outputs an AVRCP and A2DP connection request to the BT module 5 (step S105). Then, the control unit 4 executes AVRCP connection processing for connecting AVRCP between the BT module 5 and the BT module 25 (step S4), and A2DP connection for connecting A2DP between the BT module 5 and the BT module 25. Processing is executed (step S5). In this case, the AVRCP connection process starts when the AVRCP connection request signal is transmitted from the BT module 5 to the BT module 25, that is, the A2DP connection process is started from the BT module 5 of the in-vehicle device 2. On the other hand, regarding the A2DP connection process, the A2DP connection process is started from the BT module 25 of the mobile phone 3 when the A2DP connection request signal is transmitted from the BT module 25 to the BT module 5.

  When the control unit 4 is notified of the completion of the AVRCP and A2DP connection from the BT module 5 (step S106) and determines that the AVRCP connection processing and the A2DP connection processing are completed, the type of sound data stored in the nonvolatile storage unit 7 is determined. And the type of sound data (any one of BT audio, Internet radio, FM radio, AM radio, etc.) transferred from the mobile phone 3 immediately before the apparatus power is turned off is determined (step S10).

  When the control unit 4 determines that the mobile phone 3 that is the communication partner is a normal model by executing the above-described processing, the profile according to the order of HFP, SPP, AVRCP, and A2DP as shown in FIG. Are connected in sequence.

  On the other hand, when the control unit 4 determines that the mobile phone 3 as the communication partner is a specific model, as shown in FIG. 4, the control unit 4 outputs an HFP connection request to the BT module 5 (step S201), and sends the HFP to the BT module 5. HFP connection processing for connection between the BT module 25 and the BT module 25 is executed (step S6).

  When the control unit 4 is notified of the completion of the HFP connection from the BT module 5 (step S202) and determines that the HFP connection process has been completed, the control unit 4 determines that the mobile phone 3 as the communication partner is a normal model. Differently, an AVRCP and A2DP connection request is output to the BT module 5 (step S205). Then, the control unit 4 executes AVRCP connection processing for connecting AVRCP between the BT module 5 and the BT module 25 (step S7), and A2DP connection for connecting A2DP between the BT module 5 and the BT module 25. Processing is executed (step S8).

  Here, the mobile phone 3 which is a specific model of the communication partner transmits an AVRCPP connection request to the in-vehicle device 2 after completing the HFP connection processing, unlike the mobile phone 3 which is a normal model described above (step S203). When the control unit 4 determines that the AVRCP connection request from the BT module 25 is received by the BT module 5, the control unit 4 rejects (without permitting) the AVRCP connection request from the mobile phone 3 which is a specific model of the communication partner, and A connection rejection is transmitted from the BT module 5 to the BT module 25 (step S204). Even when it is determined that the AVRCP connection request is re-received by the BT module 5 from the BT module 25, the control unit 4 retransmits the AVRCP connection rejection from the BT module 5 to the BT module 24.

  When the control unit 4 is notified of the completion of the AVRCP and A2DP connection from the BT module 5 (step S206) and determines that the AVRCP connection process and the A2DP connection process are completed, the control unit 4 outputs an SPP connection request to the BT module 5 (step S207). , SPP connection processing for connecting the SPP between the BT module 5 and the BT module 25 is executed (step S9).

  When the control unit 4 is notified of the completion of the SPP connection from the BT module 5 and determines that the SPP connection processing has been completed, the control unit 4 reads the type of sound data stored in the nonvolatile storage unit 7 and immediately before turning off the apparatus power. The type of sound data transferred from the mobile phone 3 is determined (step S10).

  When the control unit 4 determines that the mobile phone 3 that is the communication partner is a specific model by executing the above-described processing, the profile according to the order of HFP, AVRCP, A2DP, and SPP as shown in FIG. Are connected in sequence.

  That is, the control unit 4 has a different order of connecting profiles depending on whether the mobile phone 3 that is the communication partner is a normal model or a specific model. If the control unit 4 determines that the mobile phone 3 that is the communication partner is a normal model, after connecting the HFP, the control unit 4 first connects the SPP and then connects the AVRCP and A2DP. On the other hand, if the control unit 4 determines that the mobile phone 3 that is the communication partner is a specific model, after connecting the HFP, the control unit 4 first connects the AVRCP and A2DP, and then connects the SPP later.

  When it is determined that the mobile phone 3 that is the communication partner is a specific model, the control unit 4 connects the AFP and A2DP after connecting the HFP as shown in FIG. As shown in FIG. 5, the control unit 4 compares the case where the AVP and A2DP are connected after the SPP is connected after the HFP is connected in the same manner as when the mobile phone 3 as the communication partner is a normal model. The time from the completion of the former HFP connection processing to the transmission of the AVRCP connection request (see “T1” in FIG. 4) is relatively short, and the AVRCP connection request is transmitted after the latter HFP connection processing is completed. The time until the process (see “T2” in FIG. 5) is relatively long. That is, when the control unit 4 determines that the mobile phone 3 that is the communication partner is a specific model, the AVRCP is connected after the HFP is connected, thereby starting the AVRCP connection process after completing the HFP connection process. The time to do is shortened.

  The control unit 4 transfers the sound data stored in the mobile phone 3 immediately before the device power is turned off immediately before the device power is turned off, that is, the type of the sound data read from the non-volatile storage unit 7 is the BT audio. , 18b, the control data by SPP is invalidated. Then, the control unit 4 transmits a sound data output start request command indicating a sound data output start request from the BT module 5 to the BT module 25 by AVRCP, and transmits control data between the BT module 5 and the BT module 25 by AVRCP. The sound data is transferred from the BT module 25 to the BT module 5 by A2DP and output from the speakers 18a and 18b (step S11). The meaning of invalidating the control data by the SPP is not to disconnect the SPP connected between the BT module 5 and the BT module 25, but to transfer the control data while maintaining the SPP connection. It is invalidated on the above (data is not transmitted, data is ignored even if it is received (not recognized), etc.).

  On the other hand, the control unit 4 has the type of sound data read from the non-volatile storage unit 7 as Internet radio, that is, the sound data stored in the server 36 on the communication network 35 immediately before the previous device power is turned off. If it is determined that the data is output from the speakers 18a and 18b, the control data by AVRCP is invalidated. Then, the control unit 4 transmits a sound data output start request command indicating a sound data output start request from the BT module 5 to the BT module 25 by SPP, and transmits control data between the BT module 5 and the BT module 25 by SPP. The sound data is transferred from the BT module 25 to the BT module 5 by A2DP and output from the speakers 18a and 18b (step S12). The meaning of invalidating the control data by AVRCP is not to disconnect the AVRCP connected between the BT module 5 and the BT module 25, but to transfer the control data while maintaining the AVRCP connection. It is invalidated on the above (data is not transmitted, data is ignored even if it is received (not recognized), etc.).

  That is, when the sound data stored in the mobile phone 3 is transferred and output, the control unit 4 transmits and receives the control data between the BT module 5 and the BT module 25 by AVRCP, and transmits the sound data to the BT. The data is transferred from the module 25 to the BT module 5 by A2DP and output from the speakers 18a and 18b. On the other hand, when the sound data stored in the server 36 on the communication network 35 side is transferred while being buffered sequentially by the mobile phone 3, the control unit 4 adopts SPP instead of AVRCP. Then, the control data is transmitted and received between the BT module 5 and the BT module 25 by SPP, and the sound data is transferred from the BT module 25 to the BT module 5 by A2DP and output from the speakers 18a and 18b.

  In this way, when transmitting the sound data of Internet radio, if the control data is transmitted and received by AVRCP in the same manner as when transferring the sound data of BT audio, any command or arbitrary data ( Although it is impossible to transmit / receive (payload), it is possible to transmit / receive arbitrary commands and arbitrary data to / from mobile phone 3 by adopting SPP instead of AVRCP as a profile for transmitting / receiving control data. It becomes possible. As a result, it is possible to provide rich functions such as operations related to selection and editing of broadcasting stations and acquisition of image data related to music.

  In the configuration described above, the control unit 4 changes the order in which the profiles are connected depending on whether the mobile phone 3 that is the communication partner is a normal model or a specific model. However, the control unit 4 does not determine whether the mobile phone 3 as the communication partner is a normal model or a specific model, and after connecting the HFP, as shown in FIG. The SPP may be connected after the A2DP is connected. With this configuration, even when a new mobile phone 3 corresponding to a specific model is released in the future, sound data can be transferred by A2DP.

  Further, the control unit 4 does not determine whether the mobile phone 3 as the communication partner is a normal model or a specific model, and after connecting the HFP, as shown in FIG. AVRCP and A2DP may be connected after connection. If comprised in this way, when the user operation accompanying communication with the various servers by the side of the communication network 35 will generate | occur | produce, the control part 4 will show a result to a user as soon as possible when the SPP is connected earlier. be able to. That is, the time required for the SPP connection process can be shortened.

  Further, the control unit 4 determines the type of sound data transferred from the mobile phone 3 immediately after the HFP is connected and the SPP is connected and immediately before the device power is turned off (step S10), and the device power is turned off. If it is determined that the sound data transferred from the mobile phone 3 just before the Internet radio was Internet radio, the A2DP is connected, while the sound data transferred from the mobile phone 3 just before the device power is turned off is BT audio. If it is determined that there is, AVRCP and A2DP may be connected. With this configuration, the control unit 4 does not need to invalidate the control data by AVRCP because it does not connect AVRCP in the case of Internet radio.

  Further, the control unit 4 determines the type of sound data transferred from the mobile phone 3 immediately after turning off the device power after connecting the HFP (step S10), and immediately before turning off the device power. If it is determined that the sound data transferred from 3 is Internet radio, it is determined that the sound data transferred from the mobile phone 3 immediately before turning off the apparatus power supply is connected to the SPP and A2DP. Then, AVRCP and A2DP may be connected. With this configuration, the control unit 4 does not connect AVRCP when it is Internet radio, so it is not necessary to invalidate control data by AVRCP, and when it is BT audio, it connects SPP. Therefore, it is not necessary to invalidate the control data by SPP.

  In addition, when the control unit 4 sets a default so as to perform connection processing in the order of HFP, SPP, AVRCP, and A2DP, and receives an AVRCP connection request from the mobile phone 3 of a specific model as a communication partner, The AVRCP connection request may be permitted to preferentially execute the AVRCP connection process. In this case, when the AVRCP connection process is completed, the control unit 4 receives an A2DP connection request from the mobile phone 3 of a specific model, and may permit the A2DP connection request and execute the A2DP connection process. If comprised in this way, the control part 4 can complete an AVRCP process and an A2DP connection process before or after completing an SPP connection process, even if the communication partner is a mobile phone 3 of a specific model.

  In addition, when the control unit 4 sets a default so as to perform connection processing in the order of HFP, SPP, AVRCP, and A2DP, and receives an AVRCP connection request from the mobile phone 3 of a specific model as a communication partner, Alternatively, the AVRCP connection request may be temporarily rejected, and the AVRCP connection request may be transmitted with the AVRCP connection request as a trigger to preferentially execute the AVRCP connection process. Also in this case, when the AVRCP connection process is completed, the control unit 4 receives an A2DP connection request from the mobile phone 3 of a specific model, and may permit the A2DP connection request and execute the A2DP connection process. . With this configuration, when the communication partner is a mobile phone 3 of a specific model, the control unit 4 has described the time from the completion of the HFP connection processing to the transmission of the AVRCP connection request in FIG. It can be made relatively short in the same way.

  Further, if the A2DP connection request is not received from the mobile phone 3 even after a predetermined period of time has elapsed after completing the AVRCP connection processing, the in-vehicle device 2 may transmit the A2DP connection request to the mobile phone 3. Even when the mobile phone 3 is instructed to “play” and does not receive an A2DP connection request from the mobile phone 3, the in-vehicle device 2 similarly transmits the A2DP connection request to the mobile phone 3. May be. As described above, the in-vehicle device 2 transmits the A2DP connection request to the mobile phone 3 so that the A2DP can be connected.

  By the way, the case where the communication partner of the in-vehicle device 2 is one and the in-vehicle device 2 and the communication partner device that is the sound data transfer source perform the BT communication in a one-to-one relationship has been described above. In the case where there are a plurality of communication partners of the in-vehicle device 2 and the BT communication is performed in a one-to-many relationship between the in-vehicle device 2 and the communication partner device that is the sound data transfer source with reference to FIGS. explain.

  In the in-vehicle device 2, a plurality of BT communication partners can be registered, and the user determines in advance which one is used as a hands-free telephone, which is used as a music playback device (portable device), and the like. It is possible to set. Here, the music reproduction of the portable device is reproduction of sound data stored in the nonvolatile storage unit of the communication partner apparatus. Hereinafter, the operation when the apparatus power is turned on in a state where the mobile phone 3a is set as the portable device and the mobile phone 3b is set as the data communication device between the hands-free phone and the server 36 will be described. To do.

  In the in-vehicle device 2, as shown in FIG. 6, the control unit 4 outputs an HFP connection request to the BT module 5 (step S301), and connects the HFP between the BT module 5 and the BT module 24 of the mobile phone 3b. The HFP connection process to be executed is executed (step S21).

  Here, when the communication partner mobile phone 3b is a specific model, the control unit 4 transmits an AVRCP connection request to the in-vehicle device 2 after completing the HFP connection process (step S303). Here, when the control unit 4 determines that the AVRCP connection request is received by the BT module 5 from the BT module 24 of the mobile phone 3b, it determines whether or not the mobile phone 3b is set as a portable device. In this embodiment, since a communication partner (mobile phone 3a) different from the mobile phone 3b is set as the portable device, the control unit 4 rejects the AVRCP connection request from the mobile phone 3b based on the determination result. The AVRCP connection rejection is transmitted from the BT module 5 to the BT module 24 of the mobile phone 3b (step S304). If the mobile phone 3b is set as a portable device, the control unit 4 may permit the AVRCP connection request from the mobile phone 3b without rejecting and execute the AVRCP connection process.

  When the control unit 4 is notified of the completion of the HFP connection from the BT module 5 (step S302) and determines that the HFP connection process has been completed, the control unit 4 outputs an AVRCP and A2DP connection request to the BT module 5 (step S305). In this case, since the mobile phone 3a is set as a portable device, the control unit 4 executes AVRCP connection processing for connecting the AVRCP between the BT module 5 and the BT module 24 of the mobile phone 3a (step S22). ), A2DP connection processing for connecting A2DP between the BT module 5 and the BT module 24 of the mobile phone 3a is executed (step S23). Then, after the AVRCP and A2DP connection completion is notified from the BT module (step S306), the control unit 4 transmits and receives control data between the BT module 5 and the BT module 24 of the mobile phone 3a by AVRCP, and transmits sound data. Is transferred from the BT module 24 of the mobile phone 3a to the BT module 5 by A2DP and output from the speakers 18a and 18b.

  Next, description will be made of an operation in the case of switching from music playback of a portable device to playback of sound data stored in the server 36 on the communication network 35 side, for example, as an Internet radio, by user operation.

  When the control unit 4 determines that a switching operation for switching the sound data transfer source from the mobile phone 3a to the server 36 on the communication network 35 side has been performed, the control unit 4 outputs an AVRCP and A2DP disconnect request to the BT module 5 (step S307). AVRCP disconnection processing is performed to disconnect the AVRCP connected between the BT module 5 and the BT module 24 of the mobile phone 3a (step S24), and the connection is made between the BT module 5 and the BT module 24 of the mobile phone 3a. An A2DP cutting process for cutting the A2DP being performed is executed (step S25).

  Even after that, even if the control unit 4 connects the SPP with the mobile phone 3b and completes the AVRCP connection, if the predetermined time has passed since the completion of the HFP connection, the control unit 4 starts from the mobile phone 3b which is a specific model. Since the A2DP connection request is not transmitted, A2DP remains unconnected. Therefore, even if an instruction to reproduce the sound data stored in the server 36 on the communication network 35 side is given, the sound data is not transferred by A2DP, and the sound data is output from the speaker 32 of the mobile phone 3b. Become.

  Therefore, the control unit 4 disconnects the AVRCP and A2DP connected between the BT module 5 and the BT module 24 of the mobile phone 3a, and then sends an HFP disconnection request to the BT module 5 as shown in FIG. Output (step S309), HFP disconnection processing for disconnecting the HFP connected between the BT module 5 and the BT module 24 of the mobile phone 3b is executed (step S26).

  Next, when the completion of HFP disconnection is notified from the BT module 5 (step S310), the control unit 4 outputs an HFP connection request to the BT module 5 (step S311), and the disconnected HFP is carried with the BT module 5. An HFP connection process for reconnecting with the BT module 24 of the telephone 3b is executed (step S27).

  Next, when the HFP connection completion is notified from the BT module 5 (step S312), the control unit 4 outputs an AVRCP and A2DP connection request to the BT module 5 (step S313), and the AVRCP is transmitted to the BT module 5 and the mobile phone 3b. AVRCP connection processing for connecting to the BT module 24 is executed (step S28), and A2DP connection processing for connecting A2DP between the BT module 5 and the BT module 24 of the mobile phone 3b is executed (step S29). .

  Next, when the AVRCP and A2DP connection completion is notified from the BT module 5 (step S314), the control unit 4 outputs an SPP connection request to the BT module 5 (step S315), and the SPP is transmitted to the BT module 5 and the cellular phone 3b. An SPP connection process for connecting to the BT module 24 is executed (step S30).

  That is, the control unit 4 completes the HFP connection process by temporarily disconnecting the HFP thus connected, reconnecting the disconnected HFP, connecting the AVRCP and A2DP, and connecting the SPP. Then, the time from when the AVRCP connection request is transmitted (refer to “T3” in FIG. 7) is relatively shortened. In this state, the control unit 4 transmits and receives control data between the BT module 5 and the BT module 24 of the mobile phone 3b by SPP, and transmits sound data stored in the server 36 on the communication network 35 side to the mobile phone 3b. The BT module 24 can be transferred to the BT module 5 by A2DP and output from the speakers 18a and 18b. In addition, the control unit 4 receives the A2DP connection request from the mobile phone 3b when it is determined that the mobile phone 3b is a specific model, or after the AVRCP connection is completed, in the process of temporarily disconnecting and reconnecting the connected HFP. You may comprise so that it may perform only when it determines with having not performed.

  In addition, when the SPP is switched between the in-vehicle device 2 and the mobile phone 3b in addition to the HFP, the control unit 4 switches both the HFP and the SPP when the sound data transfer source is switched. Is temporarily disconnected, HFP is reconnected, AVRCP and A2DP are connected, and SPP is reconnected.

  In the above, the operation in the case where the user has switched the music playback of the portable device to the playback of the sound data stored in the server 36 on the communication network 35 side, such as Internet radio, has been described. The same applies when the setting is changed from the mobile phone 3a to the mobile phone 3b and the sound data stored in the mobile phone 3a is switched to the playback of the sound data stored in the mobile phone 3b. That is, the control unit 4 transmits and receives control data between the BT module 5 and the BT module 24 of the mobile phone 3b by AVRCP by executing the processing from step S301 to step S314 shown in FIGS. Then, the sound data stored in the mobile phone 3a can be transferred from the BT module 24 of the mobile phone 3b to the BT module 5 by A2DP and output from the speakers 18a and 18b.

  The control unit 4 can also execute the AVRCP connection process and the A2DP connection process separately (separately). That is, instead of waiting for an A2DP connection request from the BT module 24, it is also possible to transmit an A2DP connection request from the BT module 5.

  After executing steps S301 to S308 shown in FIG. 6, the control unit 4 outputs an SPP connection request to the BT module 5 as shown in FIG. 8 (step S401), and carries the SPP with the BT module 5. An SPP connection process for connecting to the BT module 24 of the telephone 3b is executed (step S41). After the completion of the SPP connection is notified from the BT module 5 (step S402), an A2DP connection request is output to the BT module 5. (Step S403) A2DP connection processing for connecting the A2DP between the BT module 5 and the BT module 24 of the mobile phone 3b may be executed (Step S42). In this case, the control unit 4 starts the A2DP connection process from the BT module 5 when the A2DP connection request signal is transmitted from the BT module 5 to the BT module 24 of the mobile phone 3b. If comprised in this way, the process which once disconnects and reconnects HFP will become unnecessary.

  Next, an operation after the A2DP connection is completed will be described. Depending on the specifications of the mobile phone 3 that is the communication partner, the sound data communication path may remain closed even after the A2DP connection is completed. Considering this point, the control unit 4 performs the processes shown in FIGS.

  That is, when the control unit 4 determines that the operation of the Internet radio reproduction start request is performed by the operation device 22 in a state where the connection of the SPP, A2DP, and AVRCP is completed (S51 to S53), for example, the communication channel is opened. A request is output to the BT module 5 and a timer for measuring the second set time (T5) is started.

  When the BT module 5 receives a communication channel open request from the control unit 4, the BT module 5 starts operating a timer for measuring the first set time (T4), and determines that the first set time has elapsed. It is determined whether or not a communication path for sound data connected between the two is open (a communication channel has been established) (S54). Here, the first set time and the second set time may be set according to the specifications of a plurality of types of mobile phones 3, for example. For example, for a cellular phone 3 that spontaneously opens a sound data communication path after completing the A2DP connection, the time from the completion of the A2DP connection until the sound data communication path is opened is counted for each model. Then, a time longer than the longest value (for example, 6 seconds) may be set as the first set time. In consideration of the processing time required to open the sound data communication path, a time (for example, 8 seconds) longer than the first setting time set in this way may be set as the second setting time. .

  If the BT module 5 determines that the sound data communication path is closed and the sound data communication path is not open (S54: NO), as shown in FIG. To the BT module 25 and waits for the input of a reproduction command from the control unit 4. When receiving the communication channel open request from the BT module 5, the BT module 25 opens the communication channel for sound data. On the other hand, when the mobile phone 3 spontaneously operates, the BT module 5 determines that the closed sound data communication path is open and the sound data communication path is open (S54: YES). As shown in FIG. 10, without waiting for the communication path open request to be sent to the BT module 25 of the mobile phone 3, the input of the reproduction command from the control unit 4 is waited.

  If the control unit 4 determines that the second set time has elapsed after starting the timer for measuring the second set time, it outputs a reproduction command to the BT module 5. When the BT module 5 receives a playback command from the control unit 4, the BT module 5 transmits the input playback command to the BT module 25. When receiving the reproduction command from the BT module 5, the BT module 25 transmits a success command indicating that the reproduction command is permitted to the BT module 5, and buffers the Internet radio sound data received from the server 36 on the communication network 35 side. While buffering (S55), the buffered sound data is transmitted to the BT module 5. When receiving the success command from the BT module 25, the BT module 5 outputs the received success command to the control unit 4. When receiving the sound data from the BT module 25, the BT module 5 outputs the received sound data to the control unit 4. . The controller 4 causes the sound data received from the mobile phone 3 in this way to be output from the speakers 18a and 18b.

  That is, in the in-vehicle device 2, if the mobile phone 3 that is the communication partner completes the A2DP connection and the specification is such that the communication path of the sound data is closed and does not open, then a playback command is transmitted to the mobile phone 3. However, since the communication path of the sound data remains closed, the sound data is output from the speaker 32 of the mobile phone 3 without being transferred from the mobile phone 3 as shown in FIG. become.

  On the other hand, in the present embodiment, in the in-vehicle device 2, even if the mobile phone 3 that is the communication partner completes the A2DP connection and closes the communication path of the sound data, the playback command is not opened. By transmitting a communication channel open request before transmitting to the mobile phone 3, it is possible to open a communication channel for sound data when a playback command is subsequently transmitted to the mobile phone 3. As a result, the sound data is transferred from the mobile phone 3, and the sound data is output from the speakers 18a and 18b of the own device. In the above, the case where the Internet radio sound data received from the server 36 on the communication network 35 side is output to the mobile phone 3 has been described. However, the sound stored in the nonvolatile storage unit 28 of the mobile phone 3 is described. The same applies to the case where data (music data registered in the mobile phone 3) is output.

  In the present embodiment, the control unit 4 outputs the communication channel open request to the BT module 5 and starts the operation of the timer for measuring the second set time. However, the control unit 4 measures the second set time. It is not necessary to start the timer. That is, after the control unit 4 outputs a communication channel open request to the BT module 5, it determines whether or not the communication channel has been opened, and if it is determined that the communication channel has been opened, the playback command is sent to the BT module. 5 may be output. In this case, the timing at which the control unit 4 outputs the reproduction command to the BT module 5 depends on the time until it is determined that the communication path is open.

  As described above, according to the present embodiment, in the in-vehicle device 2, when the sound data stored in the mobile phone 3 is transferred and output, the control data is transmitted / received by AVRCP, and the sound data is A2DP. It was made to forward and output by. On the other hand, when sound data stored in the server 36 on the communication network 35 side is sequentially transferred and output by the mobile phone 3 while being buffered, SPP is adopted instead of AVRCP, and control data is transferred by SPP. Transmission and reception were performed, and sound data was transferred by A2DP and output. Thus, an arbitrary command and arbitrary data (payload) can be transmitted / received by SPP without being caught by a command defined by AVRCP, and sound data can be transferred by A2DP and output. Therefore, for example, various functions in Internet radio can be provided.

  Further, if the mobile phone 3 that is the communication partner is a specific model, if the time from the completion of the HFP connection processing to the transmission of the AVRCP connection request exceeds a predetermined time, the AVRCP connection processing is completed. In some cases, the A2DP remains unconnected and the sound data may not be transferred, but the profiles are sequentially connected in the order of HFP, AVRCP, A2DP, and SPP. As a result, it is possible to shorten the time from the completion of the HFP connection processing to the completion of the AVRCP connection processing and the A2DP connection processing, even if the mobile phone 3 that is the communication partner is a specific model. it can.

  In addition, when HFP, AVRCP, A2DP, and SPP are connected to the mobile phone 3 and the sound data stored in the mobile phone 3 is transferred and output, the SPP connection is continued. The control data by SPP is invalidated as it is. On the other hand, when the sound data stored in the server 36 on the communication network 35 side is transferred and output, the control data by AVRCP is invalidated while the AVRCP connection is continued. Thereby, when switching the mode for outputting sound data, the period during which the output of the sound data is interrupted can be minimized, and the mode for outputting sound data can be switched smoothly.

  In addition, with the HFP connected to the mobile phone 3b and the AVRCP and A2DP connected to the mobile phone 3a, the Internet radio from the server 36 on the communication network 35 side from the music playback by the mobile phone 3a. When switching to playback, the AVRCP and A2DP connected to the mobile phone 3a are disconnected, the HFP connected to the mobile phone 3b is temporarily disconnected, and then the HFP is connected to the mobile phone 3b. AVRCP, A2DP, and SPP are sequentially connected to the mobile phone 3b. Accordingly, it is possible to appropriately switch from music playback by the mobile phone 3a to Internet radio playback from the server 36 on the communication network 35 side.

  When switching from music playback by the mobile phone 3a to music playback by the mobile phone 3b with the HFP connected to the mobile phone 3b and the AVRCP and A2DP connected to the mobile phone 3a, AVRCP and A2DP connected to the mobile phone 3a are disconnected, HFP connected to the mobile phone 3b is disconnected, and then the HFP is reconnected to the mobile phone 3b. If AVRCP and A2DP are connected to the mobile phone 3b, it is possible to appropriately switch from music playback by the mobile phone 3a to music playback by the mobile phone 3b. In this case, if the HFP connection is continued, even if the mobile phone 3b is performing a hands-free call, it is possible to switch over while the hands-free call is continued.

  Also, depending on the specifications of the mobile phone 3 that is the communication partner, the sound data communication path may be closed and not opened even after the A2DP connection is completed, but the sound data is not transmitted before the playback command is transmitted to the mobile phone 3. The request to open the communication channel is transmitted to the mobile phone 3. As a result, it is possible to avoid the situation where the sound data cannot be transferred from the mobile phone 3 and the sound data is output from the speaker 32 of the mobile phone 3, and the sound data can be transferred from the mobile phone 3. The sound data transferred from the telephone 3 can be output from the speakers 18a and 18b of the own device.

The present invention is not limited to the above-described embodiment, and can be modified or expanded as follows.
The short-range wireless communication device is not limited to the in-vehicle device 2 and may be a navigation device or the like having a known navigation function as long as it has a BT module having a function equivalent to that of the BT module 5. It may be a device that is not mounted on. In addition, the communication partner device that is a data communication partner of the short-range wireless communication device is not limited to the mobile phone 3 and may be a portable information terminal or the like as long as it has a BT module having the same function as the BT module 25. Alternatively, it may be a fixed terminal that cannot be carried by the user.

  A profile (specific communication protocol) for transferring control data instead of AVRCP may be another profile other than SPP.

  In the drawing, 2 is an in-vehicle device (short-range wireless communication device), 3 is a mobile phone (communication partner device), 4 is a control unit (control means), 5 is a BT module (connection means), 7 is a storage means, 18a, 18b is a speaker (sound data output means), 28 is a non-volatile storage means (non-volatile storage means of a communication partner apparatus), 35 is a communication network, and 36 is a server.

As a result, if the second sound data stored in the server on the communication network side cannot be sufficiently provided with the function of transferring and outputting the second sound data from the communication partner device, it is specified instead of the control data transfer protocol. The data communication protocol is adopted. The second control data is not transmitted / received to / from the communication partner device using the control data communication protocol, but the second control data is transmitted / received to / from the communication partner device using the specific data communication protocol. The second sound data stored in the server can be transferred from the communication partner device and output. As a result, not only can the sound data stored in the communication partner device be properly transferred and output from the communication partner device, but also the sound data stored in the server on the communication network side can be used. The function of transferring and outputting from the apparatus can also be appropriately realized.
Further, the control means determines to switch the sound data transfer source from another communication partner device to the communication partner device in a state where the control data transfer protocol and the sound data transfer protocol are connected to another communication partner device. Then, the sound data transfer protocol connected to another communication partner apparatus is disconnected, and a specific data communication protocol and sound data transfer protocol are connected to the communication partner apparatus.

According to the invention described in claim 13 , the control means transfers the sound data from the communication partner device of the first sound data in a state where the control data transfer protocol and the sound data transfer protocol are connected to the communication partner device. When it is determined that a transfer request to the protocol has occurred, a request to open a communication path for sound data is transmitted from the connection means to the communication partner device after the first set time has elapsed since the transfer request has occurred, and the transfer is performed. A reproduction command is transmitted from the connection means to the communication partner apparatus after a second set time longer than the first set time elapses from the time when the request is generated.

According to the invention described in claim 14 , the control means transmits the sound data from the communication partner device of the second sound data in a state where the specific data communication protocol and the sound data transfer protocol are connected to the communication partner device. If it is determined that a transfer request to the transfer protocol has occurred, a request to open a sound data communication path is transmitted from the connection means to the communication partner device after the first set time has elapsed since the transfer request occurred. The reproduction command is transmitted from the connection means to the communication partner apparatus after a second set time longer than the first set time has elapsed since the transfer request was generated.

Similarly to the above-described invention described in claim 13 , by transmitting a request to open a communication path for sound data to the communication partner device before transmitting the reproduction command to the communication partner device, the reproduction command is transmitted to the communication partner device. At this stage, the sound data communication channel can be opened. As a result, the communication partner apparatus can transfer the second sound data, and the second sound data transferred from the communication partner apparatus can be output.

Claims (21)

A communication partner device that transmits a sound data transfer protocol that regulates transfer of sound data, a control data transfer protocol that regulates transfer of control data related to control of sound data, and a specific data communication protocol that regulates data communication Connection means (5) connectable with (3);
A first mode for transferring the first sound data stored in the non-volatile storage means (28) of the communication counterpart device (3) from the communication counterpart device (3), and a server (36 on the communication network (35) side) Control means (4) for selecting one of the second modes for transferring the second sound data stored in the non-volatile storage means) from the communication counterpart device (3);
Sound data output means (18a, 18b) for outputting sound data transferred from the communication counterpart device (3) by the sound data transfer protocol,
If it is determined that the first mode is selected, the control means (4) connects the control data transfer protocol and the sound data transfer protocol to the communication partner device (3). In the state, the first control data related to the control of the first sound data is transmitted to and received from the communication partner device (3) by the control data transfer protocol, and the first sound data is transmitted to the communication partner device (3). If it is determined that the second mode is selected, the sound data transfer protocol and the specific data communication protocol are exchanged with the communication partner device (3). In a connected state, the second control data related to the control of the second sound data is transmitted / received to / from the communication partner device (3) by the specific data communication protocol, Short-range wireless communication device, characterized in that to transfer the sound data from the communication partner device (3) by the sound data transfer protocol. The short-range wireless communication device according to claim 1,
The control means (4) is configured to connect the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol to the communication counterpart device (3), and If it is determined that it is selected, the first control data is transmitted / received to / from the communication counterpart device (3) by the control data transfer protocol, and the first sound data is transmitted to the communication counterpart device (3). When the second control data is transferred by the sound data transfer protocol and it is determined that the second mode is selected, the second control data is transferred to and from the communication partner apparatus (3) by the specific data communication protocol. A short-range wireless communication device that transmits and receives data and transfers the second sound data from the communication partner device (3) by the sound data transfer protocol. In the short-range wireless communication device according to claim 1 or 2,
The control means (4) is configured to connect the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol to the communication counterpart device (3), and If it is determined that the selected data communication protocol is selected, the second control data according to the specific data communication protocol is invalidated while the connection of the specific data communication protocol is continued, and the first control data is changed to the control data. A short-range wireless communication device that transmits and receives data to and from the communication counterpart device (3) by a transfer protocol and transfers the first sound data from the communication counterpart device (3) by the sound data transfer protocol. In the short-range wireless communication device according to any one of claims 1 to 3,
The control means (4) is configured to connect the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol to the communication counterpart device (3), and If it is determined that the control data transfer protocol is selected, the second control data is invalidated to the specific data communication while invalidating the first control data according to the control data transfer protocol. A short-range wireless communication device that transmits and receives data to and from the communication partner device (3) by a protocol and transfers the second sound data from the communication partner device (3) by the sound data transfer protocol. In the short-range wireless communication device according to any one of claims 1 to 4,
The connection means (5) is capable of connecting a hands-free call protocol defining a hands-free call to the communication partner apparatus (3),
The control means (4) connects the hands-free call protocol with the communication partner device (3) and then sets the specific data communication protocol with the communication partner device (3) first. A short-range wireless communication apparatus characterized in that the control data transfer protocol and the sound data transfer protocol are connected to the communication partner apparatus (3) after connection. In the short-range wireless communication device according to any one of claims 1 to 4,
The connection means (5) is capable of connecting a hands-free call protocol defining a hands-free call to the communication partner apparatus (3),
The control means (4) connects the hands-free call protocol to the communication partner device (3), and then sets the control data transfer protocol and the sound data transfer protocol to the communication partner device (3). And the specific data communication protocol is connected to the communication partner apparatus (3) afterwards. In the short-range wireless communication device according to any one of claims 1 to 4,
The connection means (5) is capable of connecting a hands-free call protocol defining a hands-free call to the communication partner apparatus (3),
When the communication partner device (3) is a specific model after the hands-free call protocol is connected to the communication partner device (3), the control means (4) first controls the control data. The transfer protocol and the sound data transfer protocol are connected to the communication partner device (3), and then the specific data communication protocol is connected to the communication partner device (3). When (3) is not a specific model, the specific data communication protocol is first connected to the communication partner device (3), and then the control data transfer protocol and the sound data transfer protocol are set to the communication partner. A short-range wireless communication device connected to the device (3). In the short-range wireless communication device according to any one of claims 5 to 7,
The control means (4) receives the connection request for the control data transfer protocol from the communication partner device (3) after connecting the hands-free call protocol with the communication partner device (3). If the connection is rejected, the short-range wireless communication apparatus requests the communication partner apparatus (3) to connect the control data transfer protocol so that the control data transfer protocol is preferentially connected. In the short-range wireless communication device according to any one of claims 5 to 7,
The control means (4) receives the control data transfer protocol connection request from the communication partner device (3) after connecting the hands-free call protocol to the communication partner device (3). In this case, the short-range wireless communication apparatus permits a connection request of the control data transfer protocol from the communication partner apparatus (3) so that the control data transfer protocol is preferentially connected. In the short-range wireless communication device according to any one of claims 1 to 4,
The connection means (5) is capable of connecting a hands-free call protocol defining a hands-free call to the communication partner apparatus (3),
When the control means (4) determines that the first mode is selected after the hands-free call protocol and the specific data communication protocol are connected to the communication partner device (3). The control data transfer protocol and the sound data transfer protocol are connected to the communication partner device (3), and if it is determined that the second mode is selected, the sound data transfer protocol Is connected to the communication partner apparatus (3). In the short-range wireless communication device according to any one of claims 1 to 4,
The connection means (5) is capable of connecting a hands-free call protocol defining a hands-free call to the communication partner apparatus (3),
When the control means (4) determines that the first mode is selected after the hands-free call protocol is connected to the communication partner device (3), the control data transfer is performed. When it is determined that the second mode is selected by connecting the protocol and the sound data transfer protocol to the communication partner device (3), the sound data transfer protocol and the specific data communication protocol Is connected to the communication partner apparatus (3). The short-range wireless communication device according to any one of claims 1 to 11,
Storage means (7) capable of storing a pre-power-off mode indicating which one of the first mode and the second mode was selected before power-off of the short-range wireless communication device;
The control unit (4) may change the first mode when the pre-power-off mode stored in the storage unit (7) indicates the first mode when the short-range wireless communication device is turned on. A short-range wireless communication device that determines that the second mode is selected when it is determined that the second mode is selected when the mode before power-off indicates the second mode. The short-range wireless communication device according to any one of claims 5 to 12,
The control means (4) connects the hands-free call protocol to the communication partner device (3), and the control data transfer protocol and the sound data transfer protocol are connected to another communication partner device (3). And the other communication partner device (3) is switched from the other communication partner device (3) to the communication partner device (3). 3) disconnecting the control data transfer protocol and the sound data transfer protocol connected to the communication partner device (3), and disconnecting the hands-free call protocol connected to the communication partner device (3), After the disconnected hands-free call protocol is reconnected to the communication partner apparatus (3), the control data transfer protocol and the sound data are first connected. Short-range wireless communication device, characterized in that to connect with the communication partner apparatus to the specific data communication protocol later by connection (3) with the communication partner apparatus to feed protocol (3). The short-range wireless communication device according to any one of claims 5 to 12,
The control means (4) connects the hands-free call protocol to the communication partner device (3), and the control data transfer protocol and the sound data transfer protocol are connected to another communication partner device (3). And the other communication partner device (3) is switched from the other communication partner device (3) to the communication partner device (3). 3) disconnecting the control data transfer protocol and the sound data transfer protocol connected to each other, and transmitting a request for connection of the sound data transfer protocol to the communication partner device (3). A transfer protocol is connected to the communication partner device (3), and the specific data communication protocol is connected to the communication partner device (3). Short-range wireless communication apparatus according to claim. The short-range wireless communication device according to any one of claims 5 to 12,
The control means (4) connects the hands-free call protocol to the communication partner device (3), and the control data transfer protocol and the sound data transfer protocol are connected to another communication partner device (3). And the other communication partner device (3) is switched from the other communication partner device (3) to the communication partner device (3). 3) disconnecting the control data transfer protocol and the sound data transfer protocol connected to the communication partner device (3), and disconnecting the hands-free call protocol connected to the communication partner device (3), The disconnected hands-free call protocol is reconnected to the communication partner device (3), and the control data transfer protocol and the sound data transfer protocol are reconnected. Short-range wireless communication device, characterized in that to connect with the communication Le counterpart apparatus (3). The short-range wireless communication device according to any one of claims 5 to 12,
The control means (4) connects the hands-free call protocol to the communication partner device (3), and the control data transfer protocol and the sound data transfer protocol are connected to another communication partner device (3). And the other communication partner device (3) is switched from the other communication partner device (3) to the communication partner device (3). 3) disconnecting the control data transfer protocol and the sound data transfer protocol connected to the communication partner device 3), and connecting the control data transfer protocol to the communication partner device (3), and the sound data. By connecting a transfer protocol connection request to the communication partner device (3), the sound data transfer protocol is connected to the communication partner device (3). Short range wireless communication apparatus according to claim. The short-range wireless communication device according to claim 1,
The control means (4) is configured to connect the communication partner device (3) of the first sound data in a state where the control data transfer protocol and the sound data transfer protocol are connected to the communication counterpart device (3). If a transfer request to the sound data transfer protocol is determined to have occurred, a request for opening a sound data communication path is issued after the first set time has elapsed since the transfer request was generated. 5) from the connection means (5) after the second set time longer than the first set time has elapsed from the time when the transfer request is generated. A short-range wireless communication device, characterized in that transmission is made to the communication partner device (3). The short-range wireless communication device according to claim 1,
The control means (4) is configured to connect the communication partner device (3) of the second sound data in a state where the specific data communication protocol and the sound data transfer protocol are connected to the communication partner device (3). If a transfer request to the sound data transfer protocol is generated, the connection means sends a request to open the sound data communication path after a first set time has elapsed since the transfer request was generated. (5) to the communication partner apparatus (3), and after a second set time longer than the first set time elapses from the time when the transfer request is generated, a reproduction command is sent to the connection means (5). A short-range wireless communication device, wherein the communication partner device (3) transmits the short-range wireless communication device. The short-range wireless communication device according to any one of claims 1 to 18,
The short-range wireless communication line is a Bluetooth communication line;
The connection means (5) is capable of connecting the sound data transfer protocol, the control data transfer protocol, and the specific data communication protocol to the communication partner apparatus (3) through a Bluetooth communication line. A short-range wireless communication device. The short-range wireless communication device according to claim 19,
The sound data transfer protocol is A2DP,
The control data transfer protocol is AVRCP;
The specific data communication protocol is SPP;
The short-range wireless communication device, wherein the connection means (5) is capable of connecting the A2DP, the AVRCP, and the SPP to the communication partner device (3) through a Bluetooth communication line. In the short-range wireless communication device according to any one of claims 1 to 20,
The short-range wireless communication device, wherein the control means (4) transfers Internet radio sound data as the second sound data from the communication partner device (3).

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