WO2016203877A1 - 通信装置、通信方法、プログラム、及び通信システム - Google Patents
通信装置、通信方法、プログラム、及び通信システム Download PDFInfo
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- WO2016203877A1 WO2016203877A1 PCT/JP2016/064189 JP2016064189W WO2016203877A1 WO 2016203877 A1 WO2016203877 A1 WO 2016203877A1 JP 2016064189 W JP2016064189 W JP 2016064189W WO 2016203877 A1 WO2016203877 A1 WO 2016203877A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/30—Security of mobile devices; Security of mobile applications
- H04W12/33—Security of mobile devices; Security of mobile applications using wearable devices, e.g. using a smartwatch or smart-glasses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
- H04W84/20—Master-slave selection or change arrangements
Definitions
- the present disclosure relates to a communication device, a communication method, a program, and a communication system.
- Patent Document 1 describes that a master device and a slave device are connected by a wireless communication method based on the Bluetooth (registered trademark) standard, and the slave device is further connected as a master device of the following piconet. Yes.
- the audio source device must execute and manage the one-to-one link processing by the number of the opposite device (audio receiver device), and the more resources the other device has, the more necessary resources (required CPU processing speed and memory amount). Will also increase proportionally and the complexity of their processing will increase. If broadcast communication for communication with a number of opposing devices is also defined in the Bluetooth specification, link processing will not increase in proportion to the number of opposing devices, but one-to-one communication such as Bluetooth is Since it is for transmitting data from a device to an unspecified number of opposing devices, it is unsuitable for streaming communication only with the opposing devices in the group.
- a streaming information receiving unit that receives streaming information from a streaming information transmitting apparatus, and an intercepting apparatus that intercepts predetermined information for receiving the streaming information transmitted from the streaming information transmitting apparatus
- a communication device comprising: an address information transmitting unit that transmits address information for identifying the streaming information transmitting device to the intercepting device.
- a receiving unit that receives predetermined information for receiving the streaming information from a streaming information transmitting apparatus that transmits streaming information to the streaming information receiving apparatus, and the streaming information transmitting apparatus includes the streaming information
- a communication device comprising: a streaming information receiving unit that receives the streaming information transmitted to the information receiving device using the predetermined information.
- the streaming information transmitting apparatus that transmits the streaming information to the streaming information receiving apparatus receives predetermined information for receiving the streaming information, and the streaming information transmitting apparatus receives the streaming information. Receiving the streaming information transmitted to the receiving device using the predetermined information.
- means for receiving predetermined information for receiving the streaming information from a streaming information transmitting apparatus that transmits streaming information to the streaming information receiving apparatus, and the streaming information transmitting apparatus receiving the streaming information A program for causing a computer to function as means for receiving the streaming information transmitted to the apparatus using the predetermined information is provided.
- the streaming information receiving unit that receives the streaming information from the streaming information transmitting apparatus, and the predetermined information for receiving the streaming information transmitted from the streaming information transmitting apparatus as the second communication apparatus
- An address information transmitting unit that transmits address information for identifying the streaming information transmitting device to the second communication device in order to be intercepted by the first communication device, and the first communication device.
- the streaming information transmission device transmits the scan to the first communication device. Reaming information, having, streaming information receiving unit that receives using the predetermined information, and a second communication device, a communication system is provided.
- a system 1000 according to an embodiment of the present disclosure includes one audio source device 100 and a plurality of audio receiver devices 200, 300, 400, and 500.
- FIG. 1 shows four audio receiver devices 200, 300, 400, and 500, the number of audio receiver devices 200, 300, 400, and 500 is not particularly limited.
- music data stored in one audio source device 100 is converted to a plurality of audio receiver devices 200, 300, 400, 500 (
- audio streaming communication using a wireless communication system based on the Bluetooth standard to headphones, speakers, etc.
- the same music can be shared and listened simultaneously by a plurality of audio receiver devices 200, 300, 400, 500 in the group.
- streaming communication is not performed for an unspecified number of audio receiver devices 200, 300, 400, and 500, so that the same music can be shared only within a group.
- audio streaming data such as music is sent from the audio source device 100 to the plurality of audio receiver devices 200, 300, 400, 500 is shown, but other data may be sent.
- the audio source device 100 is a device such as an audio player or a smartphone, and the plurality of audio receiver devices 200, 300, 400, and 500 are devices such as a headphone, a speaker, or a smartphone.
- the plurality of audio receiver devices 200, 300, 400, and 500 belong to the same group, and one audio receiver device 200 that plays the role of the parent device in the group and other audio receiver devices that play the role of the child device There are 300, 400, 500.
- the audio source device 100 recognizes and connects only the master audio receiver device 200 as a connection target by a wireless communication method based on the Bluetooth standard, and performs audio data streaming with the audio receiver device 200 by one-to-one communication (Streaming). ) Communicate.
- the other audio receiver devices 300, 400, and 500 that are slave devices acquire audio data by intercepting streaming communication from the audio source device 100 to the audio receiver device 200 that is the master device, and are master devices. The same music as the audio receiver device 200 is reproduced.
- Such streaming communication is performed from one audio source device 100 to the audio receiver device 200 that is a parent device, and the other audio receiver devices 300, 400, and 500 that are child devices intercept the streaming communication.
- the plurality of audio receiver devices 200, 300, 400, and 500 in the group can share and share common music data.
- this state is referred to as a group streaming playback state.
- the audio receiver devices 200, 300, 400, and 500 are headphones
- the users of the audio receiver devices 200, 300, 400, and 500 can listen to common music.
- one-to-one communication is performed between the audio source device 100 and the audio receiver device 200 which is a parent device by a wireless communication method based on the Bluetooth standard.
- each of the audio receiver devices 300, 400, and 500 that are slave units does not need to have a one-to-one communication link with the audio source device 100.
- each of the audio receiver devices 300, 400, and 500 does not need to have a one-to-one communication link with the audio source device 100, it is possible to greatly reduce the bandwidth of streaming distribution.
- the processing contents from the state in which the audio source device 100 and the plurality of audio receiver devices 200, 300, 400, 500 are not connected to the group streaming playback state are as follows.
- the processing up to the group streaming playback state will be described in detail in three stages: execution of group configuration processing, execution of group connection preparation processing, and execution of group connection processing.
- execution of group configuration processing execution of group configuration processing
- execution of group connection preparation processing execution of group connection processing
- execution of group connection processing it is assumed that three of the audio receiver devices 200, 300, 400, 500 constitute a group.
- FIG. 2 is a schematic diagram illustrating how the group configuration process is performed
- FIG. 3 is a flowchart illustrating the group configuration process.
- the audio receiver device 200 which is the parent device, determines two members (audio receiver device group) of the group sharing the streaming reproduction as the audio receiver devices 300 and 400.
- step S11 the audio receiver device 200, which is the parent device, starts accepting group subscription of the audio receiver devices 300 and 400.
- step S12 the audio receiver device 300 that is the child device makes a Bluetooth connection with the audio receiver device 200 that is the parent device, and is grouped from the audio receiver device 300 that is the child device to the audio receiver device 200 that is the parent device.
- a subscription request command is transmitted.
- step S14 a group join completion command is returned from the audio receiver device 200 as the parent device to the audio receiver device 300 as the child device, and the audio receiver device 200 as the parent device is the audio receiver device 300 as the child device.
- the Bluetooth connection with is disconnected.
- the audio receiver device 200 that is the parent device and the audio receiver device 300 that is the child device recognize the address information (BD_ADDR) for identifying the connection partner.
- BD_ADDR address information
- step S16 the same processing as in steps S12 and S14 is performed between the audio receiver device 400 as the slave unit and the audio receiver device 200 as the master unit.
- the audio receiver device 200 as the parent device ends the group subscription reception of the audio receiver devices 300 and 400 as the child devices.
- the members of the group are determined.
- a group is constituted by three units, that is, an audio receiver device 200 as a parent device and audio receiver devices 300 and 400 as child devices.
- the audio receiver device 200 that is a parent device stores the BD_ADDR of the audio receiver devices 300 and 400 that are child devices in a memory.
- the audio receiver devices 300 and 400 as the slave units store the BD_ADDR of the audio receiver device 200 as the master unit in the memory.
- FIG. 4 is a schematic diagram showing how the group connection preparation process is performed
- FIG. 5 is a flowchart showing the group configuration process.
- the group connection preparation process preparation for the next group connection process is performed.
- the BD_ADDR of the audio source device 100 waiting for connection is shared within the group.
- step S20 the audio receiver device 200, which is the parent device, starts preparation for connection standby.
- the BD_ADDR of the audio source device 100 of the other party that waits for connection is specified from the source device information list held in the memory by the audio receiver device 200 that is the parent device.
- step S22 the audio receiver device 200 that is the parent device is connected to the audio receiver device 300 that is the child device via Bluetooth, and is intercepted from the audio receiver device 200 that is the parent device to the audio receiver device 300 that is the child device.
- a request command is sent.
- the BD_ADDR and the link key of the audio source device 100 that is the partner waiting for the intercept are transmitted together with the intercept wait request command.
- step S24 an interception standby start command is returned from the audio receiver device 300 that is the child device to the audio receiver device 200 that is the parent device, and the audio receiver device 300 that is the parent device is the audio receiver device 300 that is the child device.
- the Bluetooth connection with is disconnected.
- step S26 processing similar to that in steps S22 and S24 is performed between the audio receiver device 400 as a slave unit and the audio receiver device 200 as a master unit.
- the BD_ADDR and link key of the audio source device 100 of the other party waiting for connection are shared between the audio receiver device 200 that is the parent device and the audio receiver devices 300 and 400 that are the child devices.
- the audio receiver device 200 that is the parent device stores the BD_ADDR and the link key of the audio source device 100 in the memory.
- the audio receiver devices 300 and 400 that are the child devices store the BD_ADDR and the link key of the audio source device 100 in the memory.
- step S28 when an interception standby start command is returned from the audio receiver devices 300 and 400 as the slave units to the audio receiver device 200 as the master unit, the audio receiver device 200 as the master unit prepares for connection standby. And start waiting for connection.
- FIG. 6 is a schematic diagram showing how group connection processing is performed
- FIG. 7 is a flowchart showing group configuration processing.
- the audio source device 100 and the audio receiver devices 200, 300, and 400 perform Bluetooth connection.
- the audio source device 100 and the audio receiver device 200 that is the parent device are substantially connected, and the audio receiver devices 300 and 400 communicate with the audio source device 100 and the audio receiver device 200 that is the parent device. Intercept.
- step S30 the audio source device 100 starts a Bluetooth connection with the audio receiver device 200 which is the parent device, and the audio source device 100 transmits an ID packet to the audio receiver device 200 which is the parent device.
- This ID packet includes the BD_ADDR of the audio source device 100.
- step S32 the audio receiver devices 300 and 400 as slave units intercept the ID packet transmitted by the audio source device 100 in step S30, and transfer from the audio source device 100 to the audio receiver device 200 as a master unit. As a connection request.
- the audio receiver devices 300 and 400 as the slave units recognize the BD_ADDR of the audio source device 100 of the other party waiting for connection through the group connection preparation process described with reference to FIGS. 4 and 5. Therefore, when the BD_ADDR included in the ID packet intercepted in step S32 matches the BD_ADDR that has already been recognized in the group connection preparation process, a connection request from the audio source device 100 that is awaiting connection to the audio receiver device 200 is requested. Can be recognized as.
- step S34 the audio receiver device 200 as the parent device returns an ID packet to the audio source device 100 as a response to the Bluetooth connection request.
- This ID packet includes the BD_ADDR of the audio receiver device 200 that is the parent device.
- step S36 the audio receiver devices 300 and 400 which are slave units intercept the ID packet transmitted by the audio receiver device 200 in step S34, and the audio receiver device 200 which is the master unit transmits to the audio source device 100. It is recognized as a connection response.
- the audio receiver devices 300 and 400 that are the slave units have already recognized the BD_ADDR of the audio receiver device 200 that is the master unit, when the ID packet transmitted by the audio receiver device 200 is intercepted in step S34. This can be recognized as a connection response from the audio receiver device 200 which is the parent device to the audio source device 100.
- step S38 the audio source device 100 starts a Bluetooth connection with the audio receiver device 200 as a parent device, and transmits an FHS (Frequency Hopping Synchronization) packet.
- This FHS packet includes BD_ADDR of the audio source device 100 and BT Clock for Bluetooth FHS (Frequency Hopping Synchronization).
- step S40 the audio receiver devices 300 and 400 as slave units intercept the FHS packet transmitted by the audio source device 100 in step S38, and transfer from the audio source device 100 to the audio receiver device 200 as a master unit. As a connection request.
- Streaming data transmitted from the audio source device 100 is frequency hopped. Specifically, for example, the frequency is hopped to any of 79 channels every 625 ⁇ s.
- the FHS packet includes information (BT Clock) indicating how and when the frequency is changed during frequency hopping. Therefore, the audio receiver devices 300 and 400 that are the slave devices intercept the streaming data that has been frequency-hopped transmitted from the audio source device 100 to the audio receiver device 200 that is the master device by intercepting the FHS packet. Is possible. Until the FHS packet is transmitted, switching to one of 79 channel frequencies is performed every predetermined time (1.28 seconds), so communication is performed by following the switched frequency. Can do.
- step S42 the audio receiver device 200, which is the parent device, returns an ID packet as a response to the Bluetooth connection request to the audio source device 100.
- This ID packet includes the BD_ADDR of the audio receiver device 200 that is the parent device.
- step S44 the audio receiver devices 300 and 400 that are slave units intercept the ID packet returned from the audio receiver device 200 that is the master unit in step S42, and audio from the audio receiver device 200 that is the master unit. Recognized as a connection response to the source device 100.
- step S46 at the same time as the connection between the audio source device 100 and the audio receiver device 200 as the parent device is completed, the audio receiver devices 300 and 400 as the child devices start interception. Thereby, the exchange of the Bluetooth specific command is started, and the streaming data is transmitted from the audio source device 100 to the audio receiver device 200 which is the parent device.
- the audio receiver device 200 which is the parent device can receive the streaming data based on the BT Clock included in the FHS packet.
- the audio receiver devices 300 and 400 that are the child devices may intercept the streaming data by the BT Clock included in the FHS packet. it can. Note that the audio receiver devices 300 and 400 that are slave units can ignore unnecessary commands other than streaming data, and can receive and reproduce the data only when the streaming data is intercepted.
- the streaming data intercepted by the FHS packet is encrypted. Since the audio receiver devices 300 and 400 as the slave units have acquired the link key (Linkkey) by the group connection preparation process described with reference to FIGS. 4 and 5, decryption (decryption) of the data encrypted using the Linkkey Can be performed.
- Linkkey link key
- the audio receiver device 200 which is the parent device directly receives streaming data from the audio source device 100 and reproduces music or the like.
- the audio receiver devices 300 and 400 as slave units reproduce music and the like by intercepting streaming data transmitted from the audio source device 100 to the audio receiver device 200.
- the audio receiver device 200 that is the parent device and the audio receiver devices 300 and 400 that are the child devices can share and play the same music, and can perform group streaming reproduction.
- FIG. 8 is a block diagram illustrating a configuration example of the audio source device 100, the audio receiver device 200 that is a parent device, and the audio receiver device 300 that is a child device.
- the audio source device 100 is configured to include a streaming information transmission unit 102.
- the audio receiver device 200 as a parent device includes a streaming information receiving unit 202, an address information transmitting unit 204, a storage unit (memory) 206, an operation input unit 208, and a display unit 210.
- the audio receiver device 300 as a slave unit includes a streaming information receiving unit 302, an intercept information receiving unit (receiving unit) 304, an address information receiving unit 306, a storage unit (memory) 308, an operation input unit 310, and a display unit 312. It is configured.
- the configuration of the other slave units (audio receiver devices 400 and 500) is the same as that of the audio receiver device 300.
- Each component of the audio source device 100, the master audio receiver device 200, and the slave audio receiver device 300 shown in FIG. 8 functions as a circuit (hardware) or a central processing unit such as a CPU. It can be configured by a program (software) for making it happen. In this case, the program can be stored in a memory included in each device or a recording medium inserted from the outside into each device.
- the streaming information transmission unit 102 of the audio source device 100 transmits the streaming data to the audio receiver device 200 that is a parent device.
- the streaming information receiving unit 202 of the audio receiver device 200 that is the parent device receives the streaming data transmitted from the audio source device 100.
- the BT Clock included in the FHS packet is used.
- the address information transmission unit 204 of the audio receiver device 200 that is the parent device transmits the BD_ADDR and link key of the audio source device 100 to the audio receiver device 300 that is the child device.
- the storage unit 206 stores the BD_ADDR of the audio source device 100, the link key, and the group member list including the BD_ADDR of the child device belonging to the group.
- the storage unit 206 also stores BT Clock included in the FHS packet.
- the operation input unit 208 includes buttons, touch sensors, and the like, and an operation by the user is input.
- the display unit 210 is composed of a liquid crystal display or the like, and performs display indicating that it is a parent device in accordance with a user operation input.
- the intercept information receiving unit 304 of the audio receiver device 300 that is a slave unit receives an FHS packet as predetermined information for receiving streaming information from the audio source device 100.
- the streaming information receiving unit 302 intercepts the streaming information transmitted from the audio source device 100 using the BT Clock included in the FHS packet.
- the address information receiving unit 306 receives address information (BD_ADDR) for identifying the audio source device 100 transmitted from the audio receiver device 200 that is a parent device.
- the storage unit 308 stores the BD_ADDR and link key of the audio source device 100.
- the storage unit 308 stores the BD_ADDR of the audio receiver device 200 that is the parent device as group subscription destination information, and stores BT Clock included in the FHS packet.
- the operation input unit 310 includes buttons, touch sensors, and the like, and inputs operations by the user.
- the display unit 312 includes a liquid crystal display or the like, and performs a display indicating that it is a slave unit in response to a user operation input.
- each user holding the audio receiver device 200 and the audio receiver devices 300 and 400 intends to be either a parent device or a child device.
- the operation input unit 208 and the operation input unit 308 are operated according to the intention display.
- the audio receiver device 200 is set as the parent device when the user of the audio receiver device 200 presses the input button of the parent device / slave device of the operation input unit 208 for a long time.
- the audio receiver device 300 presses the input button of the parent device / child device in the operation input unit 308 for a short time, the audio receiver device 300 is set as a child device.
- the audio receiver device 200 may be set as the parent device by the user of the audio receiver device 200 pressing the input button of the parent device / child device of the operation input unit 208 for a short time.
- the audio receiver device 300 may be set as a slave unit by long pressing the input button of the master unit / slave unit of the operation input unit 308.
- the audio receiver device 200 When the audio receiver device 200 is set as a parent device and the audio receiver device 300 is set as a child device, the above-described group configuration processing steps S11 to S18 are sequentially performed.
- a display indicating which of the master unit and the slave unit is set is performed.
- the display unit 210 of the audio receiver device 200 that is a parent device displays a message indicating that it is a parent device
- the display unit 310 of the audio receiver device 300 that is a child device displays an indication that it is a child device. Is called.
- step S20 of FIG. 5 the user of the audio receiver device 200, which is the parent device, selects from the source device information list displayed on the display unit. By selecting the audio source device 100, the BD_ADDR of the other audio source device 100 waiting for connection is designated. Thereafter, the above-described group connection preparation processing steps S22 to S28 are sequentially performed.
- the display unit 210 of the audio receiver device 200 that is the parent device and the display unit 310 of the audio receiver device 300 that is the child device may display that the partner waiting for connection is the audio source device 100.
- the audio receiver devices 300 and 400 as slave units can leave the group streaming group at an arbitrary timing.
- information such as the BD_ADDR, the FHS packet, and the link key held in the audio receiver device 200 as the parent device and the audio receiver devices 300 and 400 as the child devices is deleted.
- a deletion method (1) a method in which each of the audio receiver device 200 as the parent device and the audio receiver devices 300 and 400 as the child devices are deleted based on the withdrawal notification from the child device to the parent device, (2) A method of erasing each of the audio receiver device 200 that is the parent device and the audio receiver devices 300 and 400 that are the child devices based on the withdrawal notification from the parent device to the child device, and (3) the audio receiver device 200 that is the parent device There is only a way to erase data.
- the audio receiver device 300 that is a child device leaves (withdraws) from the group.
- the audio receiver device 300 as a slave unit transmits a group withdrawal notification.
- the audio receiver device 200 which is the parent device also updates the group data and removes the audio receiver device 300 from the group members.
- step S50 the audio receiver device 300 that is the child device is connected to the audio receiver device 200 that is the parent device via Bluetooth, and a group withdrawal notification is sent from the audio receiver device 300 that is the child device to the audio receiver device 200 that is the parent device. A command is sent.
- a group withdrawal acceptance command is returned from the audio receiver device 200 that is the parent device to the audio receiver device 300 that is the child device, and the audio receiver device 300 that is the child device is connected to the audio receiver device 200 that is the parent device. Disconnect the Bluetooth connection. It is assumed that there is no rejection response to the group withdrawal notification command.
- the audio receiver device 300 as the slave unit deletes the group joining destination information of the group whose parent is the audio receiver device 200 that is the transmission destination of the group withdrawal notification command.
- the audio receiver device 200 that is the parent device deletes the information of the audio receiver device 300 that is the group withdrawal notification command transmission source from the group member list.
- the audio receiver device 300 as the slave unit also erases data based on the group withdrawal notification transmission from the audio receiver device 200 as the master unit. As a result, the group information of the audio receiver device 200 that is the parent device is cleared.
- a detailed description will be given based on the flowchart of FIG.
- step S60 the audio receiver device 200 that is the parent device is connected to the audio receiver device 300 that is the child device via Bluetooth, and a group withdrawal notification is sent from the audio receiver device 200 that is the parent device to the audio receiver device 300 that is the child device. A command is sent.
- a group withdrawal acceptance command is returned from the audio receiver device 300 that is the child device to the audio receiver device 200 that is the parent device, and the audio receiver device 200 that is the parent device is connected to the audio receiver device 300 that is the child device. Disconnect the Bluetooth connection. It is assumed that there is no rejection response to the group withdrawal notification command.
- the audio receiver device 300 that is the child device deletes the group joining destination information of the group that uses the audio receiver device 200 that is the transmission source of the group withdrawal notification command as the parent device.
- the audio receiver device 200 that is the parent device deletes the information of the audio receiver device 300 that is the transmission destination of the group withdrawal notification command from the group member list.
- the group withdrawal notification is performed from the audio receiver device 200 that is the parent device, but is not connected to the audio receiver device 300 that is the child device, or the audio receiver that is the child device. If no reply is received from the device 300, the following processing is performed as the error case of (1) and (2) above. Hereinafter, a detailed description will be given based on the flowchart of FIG.
- step S70 the audio receiver device 200 as a parent device makes a Bluetooth connection with the audio receiver device 300 as a child device, and the group receiver notifies the audio receiver device 300 as a child device from the audio receiver device 200 as the parent device. Attempt to send a command.
- next step S72 it is determined whether or not the audio receiver device 200 that is the parent device can be connected to the audio receiver device 300 that is the child device. If the Bluetooth connection is not possible, the time-out occurs and the Bluetooth connection is given up. Proceed to S78.
- step S74 it is determined whether or not a group withdrawal acceptance command has been returned from the audio receiver device 300 as a slave unit to the audio receiver device 200 as a master unit during a certain period of time. If the group withdrawal acceptance command is not returned from the audio receiver device 300 as the slave unit to the audio receiver device 200 as the master unit even after a certain period of time, the Bluetooth connection with the audio receiver device 300 as the slave unit is reached after a timeout. The process proceeds to step S78.
- step S74 when the group withdrawal acceptance command is returned from the audio receiver device 300 as the slave unit to the audio receiver device 200 as the master unit within a predetermined time in step S74, the process proceeds to step S76, and after step S64 in FIG. Perform the process.
- step S78 the audio receiver device 200 that is the parent device deletes the information of the audio receiver device 300 that is the transmission destination of the group withdrawal notification command from the group member list.
- the audio receiver device 200 serving as the parent device disconnects from the audio source device 100.
- the connection between the audio source device 100 and the audio receiver device 200 which is a parent device is once disconnected.
- the interception by other audio receiver devices 400 that join the group is also stopped.
- the above-described “group configuration process” is executed to add the audio receiver device 300 as a slave unit to the group.
- the audio source device 100 and the parent audio receiver device 200 transmit and receive streaming data such as music by a wireless communication method based on the Bluetooth standard.
- the other audio receiver devices 300, 400, and 500 that are slave units acquire information for intercepting streaming communication from the audio source device 100 to the audio receiver device 200 that is the master unit.
- the audio receiver devices 300, 400, and 500 that are slave units use the information for intercepting streaming communication to intercept the streaming communication from the audio source device 100 to the audio receiver device 200 that is the master unit.
- it can be realized without changing the current Bluetooth standard it can be realized at an early stage without changing the specification.
- a streaming information receiving unit that receives streaming information from a streaming information transmitting device; Address information for transmitting address information for identifying the streaming information transmitting device to the intercepting device in order to cause the intercepting device to intercept the predetermined information for receiving the streaming information transmitted from the streaming information transmitting device.
- a communication device comprising: (2) The communication device according to (1), wherein the predetermined information includes information related to frequency hopping when communicating the streaming information. (3) An operation input unit for inputting a user's operation is provided. The communication device according to (1) or (2), wherein the address information is transmitted to a plurality of the intercepting devices belonging to a preset group in accordance with a user operation input to the operation input unit.
- a communication method comprising: (8) means for receiving streaming information from the streaming information transmitting device; Means for transmitting address information for identifying the streaming information transmitting device to the intercepting device in order to cause the intercepting device to intercept predetermined information for receiving the streaming information transmitted from the streaming information transmitting device; As a program to make the computer function as.
- a receiving unit that receives predetermined information for receiving the streaming information from the streaming information transmitting device that transmits the streaming information to the streaming information receiving device;
- a streaming information receiving unit that receives the streaming information transmitted from the streaming information transmitting apparatus to the streaming information receiving apparatus using the predetermined information;
- a communication device comprising: (10) The communication device according to (9), wherein the predetermined information includes information related to frequency hopping when communicating the streaming information.
- An address information receiving unit that receives address information for identifying the streaming information transmitting device from the streaming information receiving device, The communication device according to (9) or (10), wherein the reception unit receives the predetermined information transmitted by the streaming information transmission device based on the address information.
- An operation input unit for inputting a user operation is provided.
- the communication apparatus wherein the streaming information receiving apparatus transmits the address information to a plurality of apparatuses belonging to a preset group in response to a user operation input to the operation input unit.
- a storage unit that stores information on the streaming information receiving device as group subscriber information, The communication device according to (12), wherein the group subscriber information is deleted when the group is withdrawn.
- the communication device according to any one of (11) to (13), wherein a link key for decrypting the encrypted streaming information is received together with the address information.
- a communication method comprising: (16) means for receiving predetermined information for receiving the streaming information from the streaming information transmitting apparatus for transmitting the streaming information to the streaming information receiving apparatus; Means for receiving the streaming information transmitted by the streaming information transmitting apparatus to the streaming information receiving apparatus using the predetermined information; As a program to make the computer function as.
- a streaming information receiving unit that receives streaming information from the streaming information transmitting device;
- address information for identifying the streaming information transmitting device is used for the second communication.
- An address information transmitter for transmitting to the device;
- a first communication device comprising: An address information receiving unit for receiving the address information for identifying the streaming information transmitting device from the first communication device;
- a receiving unit that receives the predetermined information for receiving the streaming information from the streaming information transmitting device;
- a streaming information receiving unit that receives the streaming information transmitted from the streaming information transmitting apparatus to the first communication apparatus using the predetermined information;
- the second communication device comprising:
- a communication system comprising:
Abstract
Description
また、従来のBluetooth仕様(Core ver. 4.2)では、2つの機器間における一対一での接続を行い、必要なデータを送受信することが基本として定められている。そのため、1つのオーディオソース機器が複数のオーディオレシーバ機器とBluetooth接続してストリーミング通信するためには、オーディオソース機器が、それぞれのオーディオレシーバ機器に対する一対一のリンクを複数構成しなければならない問題がある。この場合、オーディオソース機器は一対一のリンク処理を対向機器(オーディオレシーバ機器)の数だけ実行・管理しなければならず、対向機器が増えるほど必要なリソース(必要なCPU処理速度やメモリ量)も比例して増加したり、それらの処理の複雑さも増加してしまう。多数の対向機器に対する通信のためのブロードキャスト通信がBluetoothの仕様にも定められていればリンク処理が対向機器の数に比例して増加することはないが、Bluetoothなどの一対一通信は、1つの機器から不特定多数の対向機器に対してデータ送信するためのものであるため、グループ内の対向機器のみに対してストリーミング通信をするには不適である。
1.システムの構成例
2.グループ構成処理の実行
3.グループ接続準備処理の実行
4.グループ接続処理の実行
5.親機及び子機の構成例
6.グループ構成処理を行う際の操作
7.グループ接続準備処理を行う際の操作
8.グループから抜ける場合のデータ削除方法
9.グループから抜けた後に再加入する場合の処理
まず、図1を参照して、本開示の一実施形態に係るシステム1000の概略構成について説明する。図1に示すように、本開示の一実施形態に係るシステム1000は、1つのオーディオソース機器100と、複数のオーディオレシーバ機器200,300,400,500を有している。なお、図1では4つのオーディオレシーバ機器200,300,400,500を示しているが、オーディオレシーバ機器200,300,400,500の台数は特に限定されるものではない。このシステム1000では、ユースケースとして、1つのオーディオソース機器100(オーディオプレーヤー、スマートフォン等)に保存されている音楽データを、同じグループに属している複数のオーディオレシーバ機器200,300,400,500(ヘッドホン、スピーカ等)に対してBluetooth規格に基づく無線通信方式によるオーディオストリーミング通信を行うことによって、同じ音楽をグループ内の複数のオーディオレシーバ機器200,300,400,500で同時に共有して聴く。この際、ブロードキャストと違って不特定多数のオーディオレシーバ機器200,300,400,500に対してストリーミング通信をするわけではないため、グループ内に限定して同じ音楽を共有させることができる。なお、本実施形態では、オーディオソース機器100から複数のオーディオレシーバ機器200,300,400,500へ音楽などのオーディオのストリーミングデータを送る例を示すが、他のデータを送っても良い。
図2及び図3に基づいて、グループ構成処理について説明する。図2はグループ構成処理が行われる様子を示す模式図であり、図3はグループ構成処理を示すフローチャートである。先ず、ステップS10では、親機であるオーディオレシーバ機器200が、ストリーミング再生を共有するグループのメンバー(オーディオレシーバ機器群)をオーディオレシーバ機器300,400の2つに決定する。
図4及び図5に基づいて、グループ接続準備処理について説明する。図4はグループ接続準備処理が行われる様子を示す模式図であり、図5はグループ構成処理を示すフローチャートである。グループ接続準備処理では、次に行うグループ接続処理のための準備を行う。ここでは、接続待機するオーディオソース機器100のBD_ADDRをグループ内で共有する。
図6及び図7に基づいて、グループ接続処理について説明する。図6はグループ接続処理が行われる様子を示す模式図であり、図7はグループ構成処理を示すフローチャートである。グループ接続処理では、オーディオソース機器100とオーディオレシーバ機器200,300,400がBluetooth接続を行う。ここでは、実質的に、オーディオソース機器100と親機であるオーディオレシーバ機器200との接続が行われ、オーディオレシーバ機器300,400は、オーディオソース機器100と親機であるオーディオレシーバ機器200の通信の傍受を行う。
図8は、オーディオソース機器100、親機であるオーディオレシーバ機器200、子機であるオーディオレシーバ機器300の構成例を示すブロック図である。図8に示すように、オーディオソース機器100は、ストリーミング情報送信部102を有して構成される。また、親機であるオーディオレシーバ機器200は、ストリーミング情報受信部202、アドレス情報送信部204、記憶部(メモリ)206、操作入力部208、表示部210を有して構成される。また、子機であるオーディオレシーバ機器300は、ストリーミング情報受信部302、傍受情報受信部(受信部)304、アドレス情報受信部306、記憶部(メモリ)308、操作入力部310、表示部312を有して構成される。なお、他の子機(オーディオレシーバ機器400,500)の構成は、オーディオレシーバ機器300と同様である。図8に示すオーディオソース機器100、親機であるオーディオレシーバ機器200、子機であるオーディオレシーバ機器300の各構成要素は、回路(ハードウェア)、またはCPUなどの中央演算処理装置とこれを機能させるためのプログラム(ソフトウェア)によって構成することができる。この場合に、そのプログラムは各機器が備えるメモリ、または各機器に外部から挿入される記録媒体に格納されることができる。
上述したグループ構成処理を行う場合、例えばオーディオレシーバ機器200とオーディオレシーバ機器300,400を保持するそれぞれのユーザが、親機、子機のいずれかになることを意思表示し、意思表示に応じた操作を操作入力部208、操作入力部308に対して行う。一例として、オーディオレシーバ機器200のユーザが操作入力部208の親機/子機の入力ボタンを長押しすることで、オーディオレシーバ機器200が親機として設定される。また、オーディオレシーバ機器300のユーザが操作入力部308の親機/子機の入力ボタンを短押しすることで、オーディオレシーバ機器300が子機として設定される。なお、オーディオレシーバ機器200のユーザが操作入力部208の親機/子機の入力ボタンを短押しすることで、オーディオレシーバ機器200が親機として設定されても良く、オーディオレシーバ機器300のユーザが操作入力部308の親機/子機の入力ボタンを長押しすることで、オーディオレシーバ機器300が子機として設定されても良い。
上述したグループ接続準備処理を行う場合、図5のステップS20において、親機であるオーディオレシーバ機器200のユーザが、表示部に表示したソース機器情報一覧の中からオーディオソース機器100を選択することによって、接続を待ち受ける相手のオーディオソース機器100のBD_ADDRを指定する。その後、上述したグループ接続準備処理のステップS22~S28の処理が順次に行われる。
次に、子機であるオーディオレシーバ機器300,400がグループから抜ける場合のデータの削除方法について説明する。子機であるオーディオレシーバ機器300,400は、任意のタイミングでグループストリーミングのグループから抜けることができる。この場合に、親機であるオーディオレシーバ機器200、子機であるオーディオレシーバ機器300,400に保持されたBD_ADDR、FHSパケット、リンクキーなどの情報が削除される。削除の方法として、(1)子機から親機への脱退通知に基づいて、親機であるオーディオレシーバ機器200、子機であるオーディオレシーバ機器300,400のそれぞれが消去する方法、(2)親機から子機への脱退通知に基づいて、親機であるオーディオレシーバ機器200、子機であるオーディオレシーバ機器300,400のそれぞれが消去する方法、(3)親機であるオーディオレシーバ機器200のみがデータを消去する方法、がある。以下では、子機であるオーディオレシーバ機器300がグループから抜ける(脱退する)場合について説明する。
次に、子機であるオーディオレシーバ機器300がグループから抜けた後、グループに再加入する場合の処理について説明する。
(1) ストリーミング情報送信装置からストリーミング情報を受信するストリーミング情報受信部と、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信するアドレス情報送信部と、
を備える、通信装置。
(2) 前記所定の情報は、前記ストリーミング情報を通信する際の周波数ホッピングに関する情報を含む、前記(1)に記載の通信装置。
(3) ユーザの操作が入力される操作入力部を備え、
前記操作入力部へのユーザの操作入力に応じて予め設定されたグループに属する複数の前記傍受装置へ前記アドレス情報を送信する、前記(1)又は(2)に記載の通信装置。
(4) 前記グループに属する複数の前記傍受装置のリストを記憶する記憶部を備え、
前記傍受装置の少なくとも1つが前記グループを脱退した場合に、脱退した前記傍受装置をリストから削除する、前記(3)に記載の通信装置。
(5) 前記アドレス情報とともに、暗号化された前記ストリーミング情報を復号化するためのリンクキーを前記傍受装置へ送信する、前記(1)~(4)のいずれかに記載の通信装置。
(6) 前記傍受装置は、前記ストリーミング情報送信装置が送信した前記ストリーミング情報を、前記所定の情報を用いて受信する、前記(1)~(5)のいずれかに記載の通信装置。
(7) ストリーミング情報送信装置からストリーミング情報を受信することと、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信することと、
を備える、通信方法。
(8) ストリーミング情報送信装置からストリーミング情報を受信する手段、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信する手段、
としてコンピュータを機能させるためのプログラム。
(9) ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信する受信部と、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信するストリーミング情報受信部と、
を備える、通信装置。
(10) 前記所定の情報は、前記ストリーミング情報を通信する際の周波数ホッピングに関する情報を含む、前記(9)に記載の通信装置。
(11) 前記ストリーミング情報受信装置から前記ストリーミング情報送信装置を識別するためのアドレス情報を受信するアドレス情報受信部を備え、
前記受信部は、前記アドレス情報に基づいて、前記ストリーミング情報送信装置が送信した前記所定の情報を受信する、前記(9)又は(10)に記載の通信装置。
(12) ユーザの操作が入力される操作入力部を備え、
前記ストリーミング情報受信装置は、前記操作入力部へのユーザの操作入力に応じて予め設定されたグループに属する複数の装置へ前記アドレス情報を送信する、前記(11)に記載の通信装置。
(13) 前記ストリーミング情報受信装置の情報をグループ加入先情報として記憶する記憶部を備え、
前記グループを脱退した場合に、前記グループ加入先情報を削除する、前記(12)に記載の通信装置。
(14) 前記アドレス情報とともに、暗号化された前記ストリーミング情報を復号化するためのリンクキーを受信する、前記(11)~(13)のいずれかに記載の通信装置。
(15) ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信することと、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信することと、
を備える、通信方法。
(16) ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信する手段、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信する手段、
としてコンピュータを機能させるためのプログラム。
(17) ストリーミング情報送信装置からストリーミング情報を受信するストリーミング情報受信部と、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を第2の通信装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記第2の通信装置へ送信するアドレス情報送信部と、
を有する、第1の通信装置と、
前記第1の通信装置から前記ストリーミング情報送信装置を識別するための前記アドレス情報を受信するアドレス情報受信部と、
前記ストリーミング情報送信装置から、前記ストリーミング情報を受信するための前記所定の情報を受信する受信部と、
前記ストリーミング情報送信装置が前記第1の通信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信するストリーミング情報受信部と、
を有する、前記第2の通信装置と、
を備える、通信システム。
200,300,400,500 オーディオレシーバ機器
202 ストリーミング情報受信部
204 アドレス情報送信部
206 記憶部
208 操作入力部
302 ストリーミング情報受信部
304 傍受情報受信部
306 アドレス情報受信部
308 記憶部
310 操作入力部
Claims (17)
- ストリーミング情報送信装置からストリーミング情報を受信するストリーミング情報受信部と、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信するアドレス情報送信部と、
を備える、通信装置。 - 前記所定の情報は、前記ストリーミング情報を通信する際の周波数ホッピングに関する情報を含む、請求項1に記載の通信装置。
- ユーザの操作が入力される操作入力部を備え、
前記操作入力部へのユーザの操作入力に応じて予め設定されたグループに属する複数の前記傍受装置へ前記アドレス情報を送信する、請求項1に記載の通信装置。 - 前記グループに属する複数の前記傍受装置のリストを記憶する記憶部を備え、
前記傍受装置の少なくとも1つが前記グループを脱退した場合に、脱退した前記傍受装置をリストから削除する、請求項3に記載の通信装置。 - 前記アドレス情報とともに、暗号化された前記ストリーミング情報を復号化するためのリンクキーを前記傍受装置へ送信する、請求項1に記載の通信装置。
- 前記傍受装置は、前記ストリーミング情報送信装置が送信した前記ストリーミング情報を、前記所定の情報を用いて受信する、請求項1に記載の通信装置。
- ストリーミング情報送信装置からストリーミング情報を受信することと、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信することと、
を備える、通信方法。 - ストリーミング情報送信装置からストリーミング情報を受信する手段、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を傍受装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記傍受装置へ送信する手段、
としてコンピュータを機能させるためのプログラム。 - ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信する受信部と、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信するストリーミング情報受信部と、
を備える、通信装置。 - 前記所定の情報は、前記ストリーミング情報を通信する際の周波数ホッピングに関する情報を含む、請求項9に記載の通信装置。
- 前記ストリーミング情報受信装置から前記ストリーミング情報送信装置を識別するためのアドレス情報を受信するアドレス情報受信部を備え、
前記受信部は、前記アドレス情報に基づいて、前記ストリーミング情報送信装置が送信した前記所定の情報を受信する、請求項9に記載の通信装置。 - ユーザの操作が入力される操作入力部を備え、
前記ストリーミング情報受信装置は、前記操作入力部へのユーザの操作入力に応じて予め設定されたグループに属する複数の装置へ前記アドレス情報を送信する、請求項11に記載の通信装置。 - 前記ストリーミング情報受信装置の情報をグループ加入先情報として記憶する記憶部を備え、
前記グループを脱退した場合に、前記グループ加入先情報を削除する、請求項12に記載の通信装置。 - 前記アドレス情報とともに、暗号化された前記ストリーミング情報を復号化するためのリンクキーを受信する、請求項11に記載の通信装置。
- ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信することと、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信することと、
を備える、通信方法。 - ストリーミング情報をストリーミング情報受信装置へ送信するストリーミング情報送信装置から、前記ストリーミング情報を受信するための所定の情報を受信する手段、
前記ストリーミング情報送信装置が前記ストリーミング情報受信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信する手段、
としてコンピュータを機能させるためのプログラム。 - ストリーミング情報送信装置からストリーミング情報を受信するストリーミング情報受信部と、
前記ストリーミング情報送信装置から送信される前記ストリーミング情報を受信するための所定の情報を第2の通信装置に傍受させるために、前記ストリーミング情報送信装置を識別するためのアドレス情報を前記第2の通信装置へ送信するアドレス情報送信部と、
を有する、第1の通信装置と、
前記第1の通信装置から前記ストリーミング情報送信装置を識別するための前記アドレス情報を受信するアドレス情報受信部と、
前記ストリーミング情報送信装置から、前記ストリーミング情報を受信するための前記所定の情報を受信する受信部と、
前記ストリーミング情報送信装置が前記第1の通信装置へ送信した前記ストリーミング情報を、前記所定の情報を用いて受信するストリーミング情報受信部と、
を有する、前記第2の通信装置と、
を備える、通信システム。
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JP2021061589A (ja) * | 2019-10-03 | 2021-04-15 | 瑞▲いく▼半導體股▲ふん▼有限公司 | 受信したパケットのデータタイプの変化に応じて適応的に動作モードを切り替え可能なマルチ構成要員型ブルートゥース装置 |
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US10778827B2 (en) * | 2019-01-14 | 2020-09-15 | Gear Radio Electronics Corp. | Wireless signal transceiving method and wireless signal transceiving system using the same |
US10512028B1 (en) * | 2019-02-26 | 2019-12-17 | Kenneth Capalbo | Wireless short range communication system |
US11405880B2 (en) * | 2019-11-05 | 2022-08-02 | Realtek Semiconductor Corp. | Main Bluetooth circuit and auxiliary Bluetooth circuit of multi-member Bluetooth device capable of synchronizing audio playback between different Bluetooth circuits |
US11457421B2 (en) | 2019-11-05 | 2022-09-27 | Realtek Semiconductor Corp. | Auxiliary bluetooth circuit of multi-member bluetooth device capable of reducing complexity of updating internal clock of bluetooth circuit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002152212A (ja) * | 2000-09-01 | 2002-05-24 | Toshiba Corp | 放送型サービスシステム及びその通信方法 |
JP2003224677A (ja) * | 2002-01-31 | 2003-08-08 | Sony Corp | 情報提供システム、並びに、情報処理装置および方法 |
JP2010178054A (ja) * | 2009-01-29 | 2010-08-12 | Hitachi Ltd | 接続情報管理装置及び方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07107010A (ja) * | 1993-09-30 | 1995-04-21 | Omron Corp | 周波数ホッピング通信装置 |
JP2005303583A (ja) * | 2004-04-09 | 2005-10-27 | Matsushita Electric Ind Co Ltd | 無線通信装置 |
GB0516470D0 (en) * | 2005-08-10 | 2005-09-14 | Cambridge Neurotechnology Ltd | Information transmission method and apparatus |
JP2007067867A (ja) | 2005-08-31 | 2007-03-15 | Interenergy Co Ltd | 無線通信方法 |
US8249068B2 (en) * | 2006-10-20 | 2012-08-21 | Alcatel Lucent | Method and apparatus for establishing multicast groups |
WO2012117306A1 (en) * | 2011-03-01 | 2012-09-07 | Koninklijke Philips Electronics N.V. | Method for enabling a wireless secured communication among devices |
US8904056B2 (en) * | 2012-04-20 | 2014-12-02 | Logitech Europe S.A. | Multi-host wireless input device |
KR101995736B1 (ko) * | 2013-01-22 | 2019-10-01 | 삼성전자주식회사 | 블루투스 기기 관련 정보 제공 방법과 그를 위한 블루투스 기기 |
TWI521905B (zh) * | 2013-02-01 | 2016-02-11 | 寶貝安科技股份有限公司 | 藍牙裝置配對資訊交換方法及應用該方法的藍牙裝置的配對切換方法 |
TWI563859B (en) * | 2015-04-23 | 2016-12-21 | Airoha Tech Corp | Bluetooth audio packet sharing method |
-
2016
- 2016-05-12 US US15/580,044 patent/US10848926B2/en active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002152212A (ja) * | 2000-09-01 | 2002-05-24 | Toshiba Corp | 放送型サービスシステム及びその通信方法 |
JP2003224677A (ja) * | 2002-01-31 | 2003-08-08 | Sony Corp | 情報提供システム、並びに、情報処理装置および方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021061589A (ja) * | 2019-10-03 | 2021-04-15 | 瑞▲いく▼半導體股▲ふん▼有限公司 | 受信したパケットのデータタイプの変化に応じて適応的に動作モードを切り替え可能なマルチ構成要員型ブルートゥース装置 |
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