TWI739549B - Multi-member bluetooth device capable of adaptively switching operation mode in response to data type change of received packets - Google Patents

Abstract

A multi-member Bluetooth device for communicating data with a remote Bluetooth device is disclosed including: a main Bluetooth circuit and an auxiliary Bluetooth circuit. In the period during which the auxiliary Bluetooth circuit operates at a relay mode, the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device, and the auxiliary Bluetooth circuit does not sniff packets transmitted from the remote Bluetooth device. But the auxiliary Bluetooth circuit switches from the relay mode to a sniffing mode if the data type of packets transmitted from the remote Bluetooth device changes. In the period during which the auxiliary Bluetooth circuit operates at the sniffing mode, the auxiliary Bluetooth circuit sniffs packets transmitted from the remote Bluetooth device while the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device.

Description

Multi-member Bluetooth device capable of adaptively switching operation modes in response to changes in received packet data types

The present invention relates to Bluetooth technology, in particular to a multi-member Bluetooth device that can adaptively switch operation modes in response to changes in received packet data types.

A multi-member Bluetooth device refers to a Bluetooth device composed of multiple Bluetooth circuits that are used in conjunction with each other, such as a pair of Bluetooth headsets, a group of Bluetooth speakers, and so on. When a multi-member Bluetooth device is connected to another Bluetooth device (hereinafter referred to as a remote Bluetooth device), the remote Bluetooth device treats the multi-member Bluetooth device as a single Bluetooth device. When a traditional multi-member Bluetooth device operates, one of the member circuits is set as the main Bluetooth circuit, which is responsible for two-way data transmission with the remote Bluetooth device, while the other member circuits are set as the secondary Bluetooth circuit.

In practical applications, the data type of the packet sent by the remote Bluetooth device to the multi-member Bluetooth device may be different due to changes in the operating situation at the time. For example, when a remote Bluetooth device uses a multi-member Bluetooth device to play video and audio data, the packets sent by the remote Bluetooth device to the multi-member Bluetooth device are usually multimedia data with a sequence number. However, when the remote Bluetooth device sends the data required to update the firmware or program version to the multi-member Bluetooth device, the packet sent by the remote Bluetooth device to the multi-member Bluetooth device is usually non-multimedia data without a serial code ( non-multimedia data), for example, program data, update modules, etc.

When the data type of the packet sent by the remote Bluetooth device changes, if the matching operation between the main Bluetooth circuit or the auxiliary Bluetooth circuit cannot be adjusted adaptively, it is easy to reduce the overall operating performance of the multi-member Bluetooth device, reduce the standby time, and cause Inconvenience in use, and even inability to complete certain operations (for example, firmware update).

In view of this, how to avoid or reduce the impact of the data type change of the packet sent by the remote Bluetooth device on the multi-member Bluetooth device is a problem to be solved.

This specification provides an embodiment of a multi-member Bluetooth device for data transmission with a remote Bluetooth device, which includes: a main Bluetooth circuit, including: a first Bluetooth communication circuit; a first packet analysis circuit, configured as Parsing the packet received by the first Bluetooth communication circuit; and a first control circuit coupled to the first Bluetooth communication circuit and the first packet parsing circuit; and a pair of Bluetooth circuits configured to selectively operate on a In a sniffing mode or a receiving mode, the secondary Bluetooth circuit includes: a second Bluetooth communication circuit; a second packet analysis circuit configured to analyze the packets received by the second Bluetooth communication circuit; and a second control circuit , Coupled to the second Bluetooth communication circuit and the second packet parsing circuit; wherein, while the secondary Bluetooth circuit is operating in the inter-receiving mode, the first control circuit uses the first Bluetooth communication circuit to receive the A packet from a remote Bluetooth device, and use the first Bluetooth communication circuit to forward the received packet to the secondary Bluetooth circuit, and the second control circuit will use the second Bluetooth communication circuit to receive the first Bluetooth communication The packet transmitted by the circuit, but the second control circuit will not use the second Bluetooth communication circuit to sniff the packet sent by the remote Bluetooth device; the data type of the packet transmitted from the remote Bluetooth device has changed Next, the secondary Bluetooth circuit will switch from the receiving mode to the sniffing mode; and while the secondary Bluetooth circuit is operating in the sniffing mode, the first control circuit will use the first Bluetooth communication circuit to receive the The packet sent by the remote Bluetooth device, and the second control circuit will use the second Bluetooth communication circuit to sniff the packet sent by the remote Bluetooth device.

One of the advantages of the above embodiment is that the multi-member Bluetooth device will be transmitted from the remote Bluetooth device When the data type of the packet changes, adaptively adjust the operating mode of the secondary Bluetooth circuit.

Another advantage of the above embodiment is that it can reduce the workload of the main Bluetooth circuit, the data bandwidth requirements between the main Bluetooth circuit and the auxiliary Bluetooth circuit, and the power consumption, heat generation, and/or temperature of the main Bluetooth circuit.

Another advantage of the above embodiment is that the standby time or service life of the main Bluetooth circuit can be prolonged, and/or the comfort of the main Bluetooth circuit can be improved.

Other advantages of the present invention will be explained in more detail with the following description and drawings.

100: multi-member Bluetooth device

102: remote Bluetooth device

110: first Bluetooth circuit

111: first Bluetooth communication circuit

113: first packet parsing circuit

115: first clock synchronizing circuit

117: first control circuit

120: second Bluetooth circuit

121: second Bluetooth communication circuit

123: second packet parsing circuit

125: second clock synchronizing circuit

127: second control circuit

130: third Bluetooth circuit

FIG. 1 is a simplified functional block diagram of a multi-member Bluetooth device according to an embodiment of the present invention.

2 to 3 are simplified flowcharts of the operation method of the multi-member Bluetooth device of the present invention in a first embodiment.

4 to 5 are simplified flowcharts of the operation method of the multi-member Bluetooth device of the present invention in a second embodiment.

6 to 7 are simplified flowcharts of the operation method of the multi-member Bluetooth device of the present invention in a third embodiment.

8 to 9 are simplified flowcharts of the operation method of the multi-member Bluetooth device of the present invention in a fourth embodiment.

10 to 11 are simplified flowcharts of the operation method of the multi-member Bluetooth device of the present invention in a fifth embodiment.

The embodiments of the present invention will be described below in conjunction with related drawings. In the drawings, the same reference numerals indicate the same or similar elements or method flows.

FIG. 1 is a simplified functional block diagram of a multi-member Bluetooth device 100 according to an embodiment of the present invention. The multi-member Bluetooth device 100 is used for data transmission with a remote Bluetooth device 102, and includes a plurality of member circuits. For the convenience of description, only three member circuits are shown in the embodiment of FIG. 1, namely the first Bluetooth circuit 110 and the second Bluetooth circuit. Road 120, and the third Bluetooth circuit 130.

In this embodiment, all member circuits in the multi-member Bluetooth device 100 have similar main circuit architectures, but different additional circuit elements can be set in different member circuits, and the circuit structure of all member circuits is not limited. Exactly the same. For example, as shown in FIG. 1, the first Bluetooth circuit 110 includes a first Bluetooth communication circuit 111, a first packet analysis circuit 113, a first clock synchronization circuit 115, and a first control circuit 117. Similarly, the second Bluetooth circuit 120 includes a second Bluetooth communication circuit 121, a second packet analysis circuit 123, a second clock synchronization circuit 125, and a second control circuit 127.

The main circuit elements inside the third Bluetooth circuit 130 are also similar to the aforementioned first Bluetooth circuit 110 or the second Bluetooth circuit 120, but for the sake of brevity, the internal circuit elements of the third Bluetooth circuit 130 are not shown in FIG. 1 .

In the first Bluetooth circuit 110, the first Bluetooth communication circuit 111 can be used for data communication with other Bluetooth devices. The first packet parsing circuit 113 can be used to analyze the Bluetooth packet received by the first Bluetooth communication circuit 111. The first clock synchronization circuit 115 is coupled to the first packet parsing circuit 113, and can be used to adjust the clock signal used by the first Bluetooth circuit 110 to synchronize the piconet used between the first Bluetooth circuit 110 and other Bluetooth devices Clock (piconet clock).

The first control circuit 117 is coupled to the first Bluetooth communication circuit 111, the first packet analysis circuit 113, and the first clock synchronization circuit 115, and is configured to control the operation of the aforementioned circuits. In operation, the first control circuit 117 can directly communicate with the remote Bluetooth device 102 through the first Bluetooth communication circuit 111 in a Bluetooth wireless transmission mode, and communicate with other member circuits through the first Bluetooth communication circuit 111. The first control circuit 117 also uses the first packet parsing circuit 113 to analyze the packets received by the first Bluetooth communication circuit 111 to obtain related data or instructions.

In the second Bluetooth circuit 120, the second Bluetooth communication circuit 121 can be used for data communication with other Bluetooth devices. The second packet parsing circuit 123 can be used to analyze the second Bluetooth communication The Bluetooth packet received by the circuit 121. The second clock synchronization circuit 125 is coupled to the second packet parsing circuit 123, and can be used to adjust the clock signal used by the second Bluetooth circuit 120 to synchronize the piconet used between the second Bluetooth circuit 120 and other Bluetooth devices. Clock.

The second control circuit 127 is coupled to the second Bluetooth communication circuit 121, the second packet analysis circuit 123, and the second clock synchronization circuit 125, and is configured to control the operation of the aforementioned circuits. In operation, the second control circuit 127 can communicate data with other Bluetooth devices through the second Bluetooth communication circuit 121 in a Bluetooth wireless transmission mode, and communicate data with other member circuits through the second Bluetooth communication circuit 121. The second control circuit 127 also uses the second packet analysis circuit 123 to parse the packet received by the second Bluetooth communication circuit 121 to obtain relevant data or instructions.

In practice, both the aforementioned first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can be implemented by suitable wireless communication circuits that can support various versions of Bluetooth communication protocols. Both the aforementioned first packet analysis circuit 113 and the second packet analysis circuit 123 can be implemented by various packet demodulation circuits, digital arithmetic circuits, microprocessors, or application specific integrated circuits (ASICs). accomplish. The aforementioned first clock synchronization circuit 115 and the second clock synchronization circuit 125 can be implemented by various suitable circuits that can compare and adjust the clock frequency and/or clock phase. Both the aforementioned first control circuit 117 and the second control circuit 127 can be implemented by various microprocessors or digital signal processing circuits with appropriate computing capabilities.

In some embodiments, the first clock synchronization circuit 115 or the second clock synchronization circuit 125 may also be integrated into the first control circuit 117 or the second control circuit 127. In addition, the aforementioned first packet analysis circuit 113 and the second packet analysis circuit 123 may be integrated into the aforementioned first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121, respectively.

In other words, the aforementioned first Bluetooth communication circuit 111 and the first packet analysis circuit 113 may be implemented by different circuits, or may be implemented by the same circuit. Similarly, the aforementioned second Bluetooth communication circuit 121 and the second packet analysis circuit 123 may be implemented by different circuits, or may be implemented by the same circuit.

In application, different functional blocks in the aforementioned first Bluetooth circuit 110 can also be integrated into a single circuit chip. For example, all the functional blocks in the first Bluetooth circuit 110 can be integrated into a single Bluetooth controller IC. Similarly, all the functional blocks in the second Bluetooth circuit 120 can also be integrated into another single Bluetooth control chip.

As can be seen from the foregoing description, different member circuits in the multi-member Bluetooth device 100 can communicate with each other through their respective Bluetooth communication circuits to form various types of data networks or data links. When the multi-member Bluetooth device 100 communicates with the remote Bluetooth device 102, the remote Bluetooth device 102 treats the multi-member Bluetooth device 100 as a single Bluetooth device, and the multiple member circuits of the multi-member Bluetooth device 100 are on the same During the time, a member circuit will be selected to play the role of the main Bluetooth circuit to handle the main task of receiving packets from the remote Bluetooth device 102, while the other member circuits will play the auxiliary Bluetooth circuit. character of.

The main Bluetooth circuit can use various known mechanisms to receive packets sent by the remote Bluetooth device 102, and the secondary Bluetooth circuit can use an appropriate mechanism to obtain the packets sent by the remote Bluetooth device 102 during the operation of the main Bluetooth circuit.

For example, when the main Bluetooth circuit receives the packet sent by the remote Bluetooth device 102, the secondary Bluetooth circuit can operate in a sniffing mode to actively sniff the packet sent by the remote Bluetooth device 102. Alternatively, the secondary Bluetooth circuit can operate in a relay mode, and only passively receive the packets forwarded after the primary Bluetooth circuit receives the packets sent by the remote Bluetooth device 102, instead of actively sniffing the remote A packet sent by the Bluetooth device 102. The operation modes of the primary Bluetooth circuit and the secondary Bluetooth circuit in the aforementioned two scenarios will be described in detail in the following paragraphs.

Please note that the terms "main Bluetooth circuit" and "secondary Bluetooth circuit" mentioned in the specification and the scope of the patent application are just for the convenience of distinguishing different member circuits in different ways of receiving packets from the remote Bluetooth device 102. It does not mean whether the main Bluetooth circuit has a certain degree of control authority over other operations of the secondary Bluetooth circuit.

In addition, during the operation of the multi-member Bluetooth device 100, the roles of the primary Bluetooth circuit and the secondary Bluetooth circuit can also be dynamically exchanged. For example, the main Bluetooth circuit can intermittently evaluate its own operating parameters such as computing load, surplus power, temperature, and/or operating environment, and when the aforementioned operating parameters meet certain predetermined conditions, the role of the main Bluetooth circuit can be handed over to Other auxiliary Bluetooth circuits.

For another example, the main Bluetooth circuit can intermittently compare the gap between its aforementioned operating parameters and the operating parameters of other secondary Bluetooth circuits, and the gap between the operating parameters of the primary Bluetooth circuit and the operating parameters of the secondary Bluetooth circuit exceeds a predetermined value. At the same time, the role of the main Bluetooth circuit is handed over to other secondary Bluetooth circuits.

For another example, the main Bluetooth circuit can also intermittently compare its own Bluetooth packet loss rate with the Bluetooth packet loss rate of other secondary Bluetooth circuits, and when the Bluetooth packet loss rate of other secondary Bluetooth circuits is relatively low, the primary Bluetooth circuit The role of the Bluetooth circuit is handed over to other secondary Bluetooth circuits.

In practice, the main Bluetooth circuit can also take the aforementioned various evaluation conditions into comprehensive consideration to determine whether to transfer the role of the main Bluetooth circuit to other secondary Bluetooth circuits.

Alternatively, the secondary Bluetooth circuit can also use various methods to determine whether the main Bluetooth circuit is disabled or missing, and when the primary Bluetooth circuit is determined to be disabled or missing, the secondary Bluetooth circuit will replace the old primary Bluetooth circuit and actively continue to play the role of the primary Bluetooth circuit. The role of the Bluetooth circuit.

As mentioned above, in actual applications, the data type of the packet sent by the remote Bluetooth device 102 to the multi-member Bluetooth device 100 may be different due to the change of the operating situation at the time. For example, when a user manipulates the remote Bluetooth device 102 to use the multi-member Bluetooth device 100 to play video and audio data, the packets sent by the remote Bluetooth device 102 to the multi-member Bluetooth device 100 are usually multimedia data with serial codes. However, when the user uses the remote Bluetooth device 102 to send the data required to update the firmware or program version to the multi-member Bluetooth device 100, the packet sent by the remote Bluetooth device 102 to the multi-member Bluetooth device 100 usually does not have Non-multimedia data of the serial code, such as program data, update modules, etc. The data type of the packet sent by the remote Bluetooth device 102 changes, but the main Bluetooth device 102 When the roles of the main Bluetooth circuit and the auxiliary Bluetooth circuit are not exchanged, if the matching operation between the main Bluetooth circuit or the auxiliary Bluetooth circuit cannot be adjusted adaptively, the main Bluetooth circuit may not be able to effectively confirm whether the auxiliary Bluetooth circuit misses packets; The Bluetooth circuit consumes more power, heats up, and/or the temperature is higher; it may reduce the comfort of the main Bluetooth circuit; it may reduce the overall operating efficiency of the multi-member Bluetooth device 100 and/or reduce the standby time; possible This causes inconvenience in the use of the multi-member Bluetooth device 100; it may also cause the problem that the secondary Bluetooth circuit easily misses packets and cannot complete a specific operation (for example, firmware update).

In order to avoid the aforementioned problems, the multi-member Bluetooth device 100 dynamically monitors whether the data type of the packet transmitted from the remote Bluetooth device 102 changes during the operation.

Hereinafter, the operation mode of the multi-member Bluetooth device 100 will be further described in conjunction with FIGS. 2 to 3. 2 to 3 are simplified flowcharts of the operation method of the multi-member Bluetooth device 100 in a first embodiment of the present invention.

In the flowcharts of FIGS. 2 to 3, the process located in the column of a specific device represents the process performed by the specific device. For example, the part marked in the "Main Bluetooth circuit" field is the process performed by the member circuit playing the main Bluetooth circuit; the part marked in the "Secondary Bluetooth circuit" field is the process performed by the member playing the secondary Bluetooth circuit The flow of the circuit, the aforementioned logic is also applicable to other subsequent flow charts.

As shown in FIG. 2, when the user uses the multi-member Bluetooth device 100 to receive a packet (for example, audio and video data) with a sequence number sent by the remote Bluetooth device 102, the multi-member Bluetooth device 100 will first perform the process 202 to obtain Bluetooth connection parameters required for receiving the packet sent by the remote Bluetooth device 102. In practice, the multi-member Bluetooth device 100 can use any member circuit to first connect with the remote Bluetooth device 102 to obtain related Bluetooth connection parameters, and then use the member circuit to transmit the acquired Bluetooth connection parameters to other member circuits. .

For example, in one embodiment, the first control circuit 117 of the first Bluetooth circuit 110 can control the first Bluetooth communication circuit 111 to establish a Bluetooth connection with the remote Bluetooth device 102 in the process 202. The Bluetooth connection parameters between the first Bluetooth circuit 110 and the remote Bluetooth device 102 are transmitted to the second Bluetooth circuit 120 and other member circuits through the first Bluetooth communication circuit 111, so that other member circuits can use The Bluetooth connection parameter is used to receive the packet sent by the remote Bluetooth device 102.

For another example, in another embodiment, the second control circuit 127 of the second Bluetooth circuit 120 can control the second Bluetooth communication circuit 121 to establish a Bluetooth connection with the remote Bluetooth device 102 in the process 202, and connect the second Bluetooth circuit The Bluetooth connection parameters between 120 and the remote Bluetooth device 102 are transmitted to other member circuits through the second Bluetooth communication circuit 121, so that other member circuits can use the Bluetooth connection parameters to receive packets from the remote Bluetooth device 102 . On the other hand, the second control circuit 127 can also convert the device identification data of the second Bluetooth circuit 120 and the Bluetooth connection parameters between the second Bluetooth circuit 120 and the remote Bluetooth device 102 in the process 202 through the second Bluetooth The communication circuit 121 transmits to the first Bluetooth circuit 110 so that the first Bluetooth circuit 110 can perform bidirectional packet transmission with the remote Bluetooth device 102 in the subsequent process. After that, the second Bluetooth circuit 120 will be changed to only receive packets sent by the remote Bluetooth device 102 in one direction, and will not send packets to the remote Bluetooth device 102 to avoid the problem of packet conflicts in the remote Bluetooth device 102.

For the convenience of description, the following assumes that in the multi-member Bluetooth device 100, the main member circuit currently selected to process the packet sent by the remote Bluetooth device 102 is the first Bluetooth circuit 110, and the other member circuits (for example, The aforementioned second Bluetooth circuit 120 and third Bluetooth circuit 130) play the role of a secondary Bluetooth circuit.

In the process 204, the first Bluetooth circuit 110 may notify other member circuits in the multi-member Bluetooth device 100 (for example, the aforementioned second Bluetooth circuit 120 and third Bluetooth circuit 130) through the first Bluetooth communication circuit 111, and then The first Bluetooth circuit 110 plays the role of the main Bluetooth circuit and instructs other member circuits to play the role of the secondary Bluetooth circuit and operate in the sniffing mode. That is, the first Bluetooth circuit 110 will be responsible for the main work of receiving packets sent by the remote Bluetooth device 102, and other member circuits can only sniff the packets sent by the remote Bluetooth device 102, but are not allowed to send commands and data. ,or others The relevant packet is sent to the remote Bluetooth device 102.

Then, while the secondary Bluetooth circuit is operating in the sniffing mode, the first Bluetooth circuit 110 will perform the process 206.

In the process 206, the first control circuit 117 of the first Bluetooth circuit 110 will use the first Bluetooth communication circuit 111 to receive the packet with the serial code from the remote Bluetooth device 102, but the first control circuit 117 will not pass the first control circuit 117. The Bluetooth communication circuit 111 forwards the packets from the remote Bluetooth device 102 to other secondary Bluetooth circuits.

In operation, the first control circuit 117 can use the Bluetooth connection parameters acquired in the process 202 to perform packet transmission with the remote Bluetooth device 102 through the first Bluetooth communication circuit 111, so as to receive various transmissions from the remote Bluetooth device 102. Packets, or send various packets to the remote Bluetooth device 102. According to the operation description of the aforementioned process 202, the Bluetooth connection parameters used by the first Bluetooth circuit 110 and the remote Bluetooth device 102 for packet transmission may be acquired by the first Bluetooth circuit 110 itself, or may be other member circuits. (For example, the second Bluetooth circuit 120).

Every time the first Bluetooth communication circuit 111 receives a packet from the remote Bluetooth device 102, the first control circuit 117 of the first Bluetooth circuit 110 can transmit a corresponding acknowledgement message through the first Bluetooth communication circuit 111 To the remote Bluetooth device 102. If the remote Bluetooth device 102 does not receive the corresponding confirmation information of the specific packet, it will retransmit the specific packet to the first Bluetooth communication circuit 111. In practice, various suitable packet handshake mechanisms can be used between the first Bluetooth circuit 110 and the remote Bluetooth device 102 to reduce or avoid the occurrence of packet missing.

On the other hand, when the main Bluetooth circuit receives the packet sent by the remote Bluetooth device 102, other member circuits that play the role of the secondary Bluetooth circuit will proceed to the process 208 and continue to operate in the sniffing mode to sniff the remote Bluetooth device 102. Packet with serial code. For example, in the process 208, the second control circuit 127 of the second Bluetooth circuit 120 may use the second Bluetooth communication circuit 121 to sniff the packet sent by the remote Bluetooth device 102 according to the Bluetooth connection parameters obtained in the process 202. In one embodiment, the second Bluetooth communication device The path 121 can sniff all the Bluetooth packets sent by the remote Bluetooth device 102. In another embodiment, the second Bluetooth communication circuit 121 only sniffs the Bluetooth packets sent by the remote Bluetooth device 102 to the first Bluetooth circuit 110, and does not sniff the remote Bluetooth device 102 to send to the multi-member Bluetooth. Bluetooth packets of devices other than device 100. From the description of the foregoing process 202, it can be seen that the Bluetooth connection parameters used by the second Bluetooth communication circuit 121 to sniff the packet sent by the remote Bluetooth device 102 may be obtained by the second Bluetooth circuit 120 itself, or may be other members. Circuit (for example, the first Bluetooth circuit 110).

The secondary Bluetooth circuit may perform the process 210 every time it sniffs the packet sent by the remote Bluetooth device 102. In the process 210, the secondary Bluetooth circuit sends a notification message corresponding to the sniffed packet to the primary Bluetooth circuit, but does not send any confirmation message to the remote Bluetooth device 102. For example, every time the second Bluetooth circuit 120 sniffs a packet sent by the remote Bluetooth device 102, the second control circuit 127 may perform the process 210 to transmit a corresponding notification message to the first Bluetooth circuit through the second Bluetooth communication circuit 121 The first Bluetooth communication circuit 111 of 110, but the second control circuit 127 will not transmit any confirmation information to the remote Bluetooth device 102 through the second Bluetooth communication circuit 121.

In practice, the secondary Bluetooth circuit can also be changed to perform the aforementioned process 210 when the primary Bluetooth circuit inquires whether the secondary Bluetooth circuit has sniffed a specific packet sent by the remote Bluetooth device 102.

In other words, during the period when the secondary Bluetooth circuit is operating in the sniffing mode, although the primary Bluetooth circuit and other secondary Bluetooth circuits will receive the packet sent by the remote Bluetooth device 102 in this embodiment, only the primary Bluetooth circuit will receive the packet when receiving the packet. The confirmation message is sent to the remote Bluetooth device 102, and other secondary Bluetooth circuits will not send the confirmation message to the remote Bluetooth device 102, so as to avoid the remote Bluetooth device 102 from causing misjudgment. Since the remote Bluetooth device 102 does not know that the second Bluetooth circuit 120 is sniffing the packet sent by the remote Bluetooth device 102, and the second Bluetooth circuit 120 does not send the corresponding confirmation message to the remote Bluetooth device 102, the second Bluetooth circuit Between 120 and the remote Bluetooth device 102, no packet handshaking procedure is performed for the packet sent by the remote Bluetooth device 102.

In this embodiment, the second Bluetooth circuit 120 transmits the aforementioned notification information to the first Bluetooth circuit. The purpose of the path 110 is not to perform a packet handshaking procedure with the first Bluetooth circuit 110, but to allow the first Bluetooth circuit 110 to grasp whether the second Bluetooth circuit 120 has missed any packets sent by the remote Bluetooth device 102.

In addition, the purpose of the second Bluetooth circuit 120 sending the aforementioned notification information to the first Bluetooth circuit 110 is not for the first Bluetooth circuit 110 to decide whether to send the aforementioned confirmation information to the remote Bluetooth device 102 based on it. The first control circuit 117 of this embodiment does not check whether the first Bluetooth communication circuit 111 has received the aforementioned notification information from the second Bluetooth circuit 120 before transmitting the aforementioned confirmation message to the remote Bluetooth device 102. Therefore, the timing of the first Bluetooth communication circuit 111 transmitting the confirmation information to the remote Bluetooth device 102 is independent of whether the first Bluetooth communication circuit 111 has received the aforementioned notification information from the second Bluetooth circuit 120.

In practice, the aforementioned notification information sent by the second Bluetooth circuit 120 to the first Bluetooth circuit 110 can be implemented in various suitable data formats. For example, when the second Bluetooth circuit 120 receives a specific Bluetooth packet from the remote Bluetooth device 102, the second control circuit 127 can extract the corresponding serial code from the specific Bluetooth packet, and combine the serial code with the available serial code. The device code or device identification data for identifying the second Bluetooth circuit 120 is combined or encoded into notification information corresponding to the specific Bluetooth packet. For another example, the second control circuit 127 may extract appropriate packet identification data from the specific Bluetooth packet, and combine or encode the packet identification data together with the device code or device identification data that can be used to identify the second Bluetooth circuit 120 Into the notification message corresponding to the specific Bluetooth packet.

From the foregoing description, it can be seen that in the process of the remote Bluetooth device 102 successively sending out multiple Bluetooth packets, each secondary Bluetooth circuit will repeat the aforementioned process 208 and process 210 under normal circumstances, and then transmit multiple notification messages to the first. A Bluetooth circuit 110. For example, the second Bluetooth circuit 120 may repeat the process 208 and the process 210 to transmit multiple notification messages corresponding to multiple Bluetooth packets sent by the remote Bluetooth device 102 to the first Bluetooth circuit 110.

In actual operation, each secondary Bluetooth circuit may occasionally miss the remote Bluetooth device 102 Some packets sent out, and the number of packets missed by different secondary Bluetooth circuits and the number of packets may also be different. Therefore, the primary Bluetooth circuit can perform the process 212 intermittently or periodically to determine whether the individual secondary Bluetooth circuit misses the packet sent by the remote Bluetooth device 102 according to a plurality of notification messages from the individual secondary Bluetooth circuit.

For example, in the process 212, the first control circuit 117 of the first bluetooth circuit 110 can check whether the second bluetooth circuit 120 misses the notification sent by the remote bluetooth device 102 according to a plurality of notification messages sent by the second bluetooth circuit 120. Part of the packet. The first packet parsing circuit 113 can analyze multiple serial codes or multiple packet identification data from a plurality of notification messages sent from the second Bluetooth circuit 120. The first control circuit 117 can check whether these serial codes or packet identification data have continuity, so as to check whether the second Bluetooth circuit 120 misses some packets sent by the remote Bluetooth device 102. If the aforementioned serial code or packet identification data is discontinuous, the first control circuit 117 can determine that the second Bluetooth circuit 120 has missed a packet corresponding to the missing serial code or packet identification data. According to the missing serial code or packet identification data, the first control circuit 117 can further define which packets are missed by the second Bluetooth circuit 120.

As mentioned above, a packet handshaking mechanism is adopted between the first Bluetooth circuit 110 and the remote Bluetooth device 102. Therefore, the first Bluetooth circuit 110 should be able to successfully obtain all the packets sent by the remote Bluetooth device 102 under normal circumstances.

If the first control circuit 117 detects that a certain pair of Bluetooth circuits missed part of the packets sent by the remote Bluetooth device 102, the process 214 is performed, and the packets missed by the pair of Bluetooth circuits are transmitted through the first Bluetooth communication circuit 111. Give the secondary Bluetooth circuit.

For example, in the case that the first control circuit 117 detects that the second Bluetooth circuit 120 missed a specific packet sent by the remote Bluetooth device 102, the first control circuit 117 can proceed to the process 214 to transfer the second Bluetooth communication circuit 111 The packets missed by the second Bluetooth circuit 120 are sent to the second Bluetooth circuit 120.

In this case, the second Bluetooth circuit 120 will perform the process 216 to receive the packet transmitted by the first Bluetooth circuit 110 through the second Bluetooth communication circuit 121. In other words, in the second blue During the period when the dental circuit 120 is operating in the sniffing mode, the second control circuit 127 can use the second Bluetooth communication circuit 121 to receive packets from the first Bluetooth circuit 110, so as to obtain the packets sent by the remote Bluetooth device 102 but received 2. Packets missed by the Bluetooth communication circuit 121.

By repeating the aforementioned operations, the second Bluetooth circuit 120 can fill in all missed packets with the assistance of the first Bluetooth circuit 110. Similarly, the first Bluetooth circuit 110 can use the aforementioned method to assist other secondary Bluetooth circuits to fill in the missing packets.

While the secondary Bluetooth circuit is operating in the sniffing mode, if the secondary Bluetooth circuit needs to send commands, data, or related packets to the remote Bluetooth device 102, it must forward the commands, data, or related packets to the remote via the primary Bluetooth circuit.端Bluetooth device 102. For example, if the second Bluetooth circuit 120 needs to send commands, data, or related packets to the remote Bluetooth device 102, the aforementioned commands, data, or related packets must be transmitted to the master Bluetooth circuit through the second Bluetooth communication circuit 121. The first Bluetooth circuit 110 is then forwarded to the remote Bluetooth device 102 by the first Bluetooth circuit 110 to avoid the problem of packet conflicts in the remote Bluetooth device 102.

In other words, while the secondary Bluetooth circuit is operating in the sniffing mode, all member circuits of the multi-member Bluetooth device 100 will receive packets sent by the remote Bluetooth device 102, but only the primary Bluetooth circuit is allowed to send commands, data, or other related packets to Remote Bluetooth device 102.

It can be seen from the foregoing description that a packet handshaking mechanism is adopted between the first Bluetooth circuit 110 and the remote Bluetooth device 102 to avoid missing packets, and the timing of the first Bluetooth communication circuit 111 sending confirmation information to the remote Bluetooth device 102 , It has nothing to do with whether the first Bluetooth circuit 110 has received the aforementioned notification information from the second Bluetooth circuit 120.

Therefore, when other secondary Bluetooth circuits receive the packet sent by the remote Bluetooth device 102, they send corresponding notification information to the first Bluetooth circuit 110, and will not interfere with or delay the communication between the first Bluetooth circuit 110 and the remote Bluetooth device 102. The inter-packet handshaking procedure does not cause additional operational burden on the first Bluetooth circuit 110 to perform the aforementioned packet handshaking procedure.

On the other hand, due to other secondary Bluetooth circuits in the multi-member Bluetooth device 100 (for example, the former Both the second Bluetooth circuit 120 and the third Bluetooth circuit 130) sniff the packets sent by the remote Bluetooth device 102, so each secondary Bluetooth circuit will receive most of the packets sent by the remote Bluetooth device 102 under normal circumstances. Therefore, the first Bluetooth circuit 110 as the main Bluetooth circuit only needs to transmit the packets missed by the individual secondary Bluetooth circuits to the corresponding secondary Bluetooth circuit, instead of transmitting all the packets sent by the remote Bluetooth device 102 to each Secondary Bluetooth circuit.

Therefore, the multi-member Bluetooth device 100 uses the method of FIG. 2 to interact with the remote Bluetooth device 102, which can greatly reduce the packet forwarding burden of the main Bluetooth circuit (in this example, the first Bluetooth circuit 110), thereby saving the main Bluetooth circuit. power consumption. In this way, the working time and standby time of the main Bluetooth circuit can be effectively extended.

In addition, it can greatly reduce the data transmission bandwidth requirements between the main Bluetooth circuit and other member circuits, so the hardware design of the main Bluetooth circuit and other member circuits can be simplified, and/or the circuit complexity and circuit cost can be reduced. .

During operation, various suitable existing data synchronization mechanisms can be used between the main Bluetooth circuit and other secondary Bluetooth circuits to ensure that different member circuits can synchronously play the multimedia data transmitted by the remote Bluetooth device 102, thereby avoiding differences. The playing sequence of the member circuit is inconsistent.

It can be seen from the foregoing description that while the secondary Bluetooth circuit is operating in the sniffing mode, although the roles of the primary Bluetooth circuit and the secondary Bluetooth circuit are unchanged, the data type of the packet sent by the remote Bluetooth device 102 to the multi-member Bluetooth device 100 is not changed. It may be different due to changes in the user's operating context of the multi-member Bluetooth device 100 at that time. When the data type of the packet sent by the remote Bluetooth device 102 changes, if the matching operation between the main Bluetooth circuit and the secondary Bluetooth circuit cannot be adjusted adaptively, the primary Bluetooth circuit may not be able to effectively confirm whether the secondary Bluetooth circuit misses packets, As a result, the secondary Bluetooth circuit easily misses packets and cannot complete specific operations (for example, firmware update), and/or reduces the overall operating performance of the multi-member Bluetooth device 100. In some cases, it may also shorten the service life or standby time of the secondary Bluetooth circuit or the main Bluetooth circuit. In addition, for the use of wireless Bluetooth headsets For some traditional multi-member Bluetooth devices that are implemented, if the user wants to change the operating situation of the multi-member Bluetooth device, the user usually must first remove the multi-member Bluetooth device temporarily and put it on a specific device (for example, a headset). Only in the charging cradle or earphone charging box) can specific operations (for example, update the firmware of a multi-member Bluetooth device) be performed, which obviously causes inconvenience to the user's operation.

In this embodiment, as shown in FIG. 3, while the secondary Bluetooth circuit is operating in the sniffing mode, the first Bluetooth circuit 110 acting as the primary Bluetooth circuit will also intermittently perform the process 302 to check the remote Bluetooth device 102 The data type of the incoming packet. For example, in the process 302, the first control circuit 117 of the first Bluetooth circuit 110 can use the first packet analysis circuit 113 to analyze the packet received by the first Bluetooth communication circuit 111 (that is, the packet transmitted by the remote Bluetooth device 102). ) And check the data type of the packet. In practice, the first control circuit 117 can read the content of the sequence number field in the packet transmitted from the remote Bluetooth device 102 to determine whether the data type of the packet belongs to data with a serial code, Still belong to the data that does not have a serial code.

Then, the first control circuit 117 can perform the process 304 to determine whether the data type of the packet transmitted by the remote Bluetooth device 102 has changed. In practice, the first control circuit 117 can temporarily store the data type of the packet previously transmitted by the remote Bluetooth device 102 in an appropriate storage circuit (not shown in the figure) so as to communicate with the data type currently transmitted by the remote Bluetooth device 102 The data type of the packet is compared. In the process 304, the first control circuit 117 can compare the data type of the packet currently transmitted by the remote Bluetooth device 102 with the data type of the previously transmitted packet to determine whether the data type of the packet transmitted by the remote Bluetooth device 102 has a serial code The data becomes the data without the serial code.

If the data type of the packet currently transmitted by the remote Bluetooth device 102 still belongs to the data with the serial code, it usually means that the operation context of the multi-member Bluetooth device 100 has not changed. In this case, the first Bluetooth circuit 110 can repeat the operations of the aforementioned processes 206, 212, and 214, and the second Bluetooth circuit 120 can continue to operate in the sniffing mode.

Conversely, if the data type of the packet currently transmitted by the remote Bluetooth device 102 becomes data without a serial code, it usually means that the operation context of the multi-member Bluetooth device 100 has changed. When the data type of the packet from the remote Bluetooth device 102 becomes data without a serial code, it is difficult for the primary Bluetooth circuit to effectively confirm whether the secondary Bluetooth circuit has missed packets, which may cause the secondary Bluetooth circuit to easily miss packets and fail to complete specific operations. (For example, firmware update). In this case, the first Bluetooth circuit 110 can perform the process 306.

In the process 306, the first control circuit 117 of the first Bluetooth circuit 110 generates a first mode switching instruction for instructing the second Bluetooth circuit 120 to switch from the sniffing mode to the indirect reception mode, and communicates via the first Bluetooth The circuit 111 transmits the first mode switching instruction to the second Bluetooth circuit 120.

In the process 308, the second bluetooth communication circuit 121 receives the first mode switching instruction from the first bluetooth circuit 110, and the second control circuit 127 controls the second bluetooth circuit 120 according to the first mode switching instruction. The operation mode is switched from sniffing mode to indirect reception mode.

Then, the first Bluetooth circuit 110 will perform the process 310, and the second Bluetooth circuit 120 will perform the process 312.

In the process 310, the first control circuit 117 of the first Bluetooth circuit 110 will use the first Bluetooth communication circuit 111 to receive the packet without the serial code from the remote Bluetooth device 102, and will receive the packet through the first Bluetooth communication circuit 111 The received packet is forwarded to the second Bluetooth circuit 120.

In the process 312, the second control circuit 127 controls the second Bluetooth circuit 120 to operate in the indirect reception mode, and uses the second Bluetooth communication circuit 121 to receive the packet without a serial code transferred from the first Bluetooth circuit 110. However, while the second Bluetooth circuit 120 is operating in the indirect reception mode, the second control circuit 127 does not use the second Bluetooth communication circuit 121 to sniff the packet sent by the remote Bluetooth device 102. In other words, during the period when the second Bluetooth circuit 120 is operating in the indirect reception mode, the second Bluetooth circuit 120 passes through the first Bluetooth circuit 110 indirectly obtains the packet sent by the remote Bluetooth device 102.

As can be seen from the foregoing description, while the second Bluetooth circuit 120 playing the role of the secondary Bluetooth circuit is operating in the sniffing mode, the first Bluetooth circuit 110 playing the role of the primary Bluetooth circuit will intermittently check and determine that the remote Bluetooth device 102 is coming. Whether the data type of the packet changes from data with a serial code to data without a serial code. As long as the data type of the packet from the remote Bluetooth device 102 still belongs to the data with the serial code, the first Bluetooth circuit 110 will not instruct the second Bluetooth circuit 120 to switch to the indirect reception mode. In this case, the first bluetooth circuit 110 only needs to transfer the packets missed by the second bluetooth circuit 120 to the second bluetooth circuit 120, and does not need to forward all the packets sent by the remote bluetooth device 102 to the second bluetooth circuit 120. Therefore, the operating burden, power consumption, and heat generation of the first Bluetooth circuit 110 can be reduced, and the working time and standby time of the first Bluetooth circuit 110 can be prolonged, and the gap between the first Bluetooth circuit 110 and the second Bluetooth circuit 120 can be reduced. Data transmission bandwidth requirements.

Only when the data type of the packet from the remote Bluetooth device 102 changes from data with a serial code to data without a serial code, will the first Bluetooth circuit 110 instruct the second Bluetooth circuit 120 to change the operating mode from sniffing The mode is switched to the indirect reception mode. In this case, the first Bluetooth circuit 110 will forward all packets sent by the remote Bluetooth device 102 to the second Bluetooth circuit 120, and the second Bluetooth circuit 120 will stop sniffing the packets sent by the remote Bluetooth device 102, so it can This effectively prevents the second Bluetooth circuit 120 from missing packets. In this way, the problem that the second Bluetooth circuit 120 cannot complete a specific operation (for example, firmware update) due to missing packets can be avoided.

Similarly, the multi-member Bluetooth device 100 can adaptively switch the operation mode of the third Bluetooth circuit 130 according to the change of the data type of the packet transmitted from the remote Bluetooth device 102 according to the aforementioned method.

Therefore, using the aforementioned operating modes of Figures 2 and 3, the main Bluetooth circuit in the multi-member Bluetooth device 100 can change the data type of the packet transmitted from the remote Bluetooth device 102 from data with serial codes to data without serial codes. Time, adaptively adjust the operation of the secondary Bluetooth circuit The working mode is switched from the sniffing mode to the indirect receiving mode, and the matching operation between the main Bluetooth circuit and the auxiliary Bluetooth circuit is changed accordingly. Such a method can effectively avoid the problem that the secondary Bluetooth circuit misses packets and cannot complete a specific operation (for example, firmware update), thereby improving the overall performance of the multi-member Bluetooth device 100, prolonging the service life of the Bluetooth circuit, or improving the user experience.

Furthermore, in some applications where the multi-member Bluetooth device 100 is implemented using a wireless Bluetooth headset, the user may suddenly want to update the multi-member Bluetooth device 100 when playing multimedia data from the remote Bluetooth device 102. Firmware of member Bluetooth device 100. In this case, the multi-member Bluetooth device 100 adopts the above-mentioned operation mode of FIG. 2 and FIG. 3, which allows the user to use the multi-member Bluetooth device 100 to play multimedia data from the remote Bluetooth device 102 and interrupt at any time. The multimedia playback operation of the multi-member Bluetooth device 100 is changed to control the remote Bluetooth device 102 to send program data or update modules required to update the firmware of the multi-member Bluetooth device 100 to the multi-member Bluetooth device 100. More importantly, in the aforementioned use context switching process, the user does not need to temporarily remove the multi-member Bluetooth device 100 from the ear and place it in a specific device (for example, a headset charging stand or a headset charging box). It can significantly improve the operating convenience of the multi-member Bluetooth device 100 for users.

In the foregoing embodiments of FIGS. 2 to 3, the multi-member Bluetooth device 100 checks and determines whether the data type of the packet transmitted from the remote Bluetooth device 102 has a serial code during the period when the secondary Bluetooth circuit is operating in the sniffing mode. The data becomes data without a serial code, and according to the result of the judgment, it is determined whether to switch the operation mode of the secondary Bluetooth circuit from the sniffing mode to the indirect receiving mode. However, these are only some examples, and do not limit the actual implementation of the present invention. In practice, the multi-member Bluetooth device 100 can also dynamically determine whether to switch the secondary Bluetooth circuit according to the change in the data type of the packet transmitted from the remote Bluetooth device 102 during the period when the secondary Bluetooth circuit is operating in the indirect reception mode. Mode of operation.

For example, FIGS. 4 to 5 are simplified flowcharts of the operation method of the multi-member Bluetooth device 100 in a second embodiment of the present invention.

As shown in FIG. 4, when the user wants to use the multi-member Bluetooth device 100 to receive a packet without a serial code sent by the remote Bluetooth device 102 (for example, non-multimedia data such as program data, update modules, etc.), the multi-member Bluetooth device The device 100 may first perform the aforementioned process 202 to obtain the Bluetooth connection parameters required for receiving the packet sent by the remote Bluetooth device 102. The foregoing description of the operation mode and embodiment changes of the process 202 in FIG. 2 is also applicable to the embodiment in FIG. 4.

For the convenience of explanation, the following also assumes that the first Bluetooth circuit 110 is a member circuit of the multi-member Bluetooth device 100 that is currently selected to process the main work of receiving packets from the remote Bluetooth device 102, and other member circuits (for example, The aforementioned second Bluetooth circuit 120 and third Bluetooth circuit 130) play the role of a secondary Bluetooth circuit.

In the process 404, the first Bluetooth circuit 110 may notify other member circuits in the multi-member Bluetooth device 100 (for example, the aforementioned second Bluetooth circuit 120 and third Bluetooth circuit 130) through the first Bluetooth communication circuit 111, and then The first Bluetooth circuit 110 plays the role of the main Bluetooth circuit, and instructs other member circuits to play the role of the secondary Bluetooth circuit, and operates in the indirect reception mode. That is, the first Bluetooth circuit 110 will be responsible for processing the main work of receiving the packets sent by the remote Bluetooth device 102, and the other member circuits only need to receive the packets transferred from the first Bluetooth circuit 110 without sniffing the remote The Bluetooth device 102 sends a packet, and other member circuits are not allowed to send commands, data, or other related packets to the remote Bluetooth device 102.

Then, while the secondary Bluetooth circuit is operating in the inter-receiving mode, the first Bluetooth circuit 110 will perform the process 406.

In the process 406, the first control circuit 117 of the first Bluetooth circuit 110 can use the first Bluetooth communication circuit 111 to receive a packet without a serial code from the remote Bluetooth device 102, and the first control circuit 117 can also use the first Bluetooth communication circuit 111. A Bluetooth communication circuit 111 forwards the packet without a serial code from the remote Bluetooth device 102 to other secondary Bluetooth circuits. For example, the first control circuit 117 can forward the packet without a serial code from the remote Bluetooth device 102 to the second Bluetooth circuit 120 through the first Bluetooth communication circuit 111.

In operation, the first control circuit 117 can use the Bluetooth connection parameters acquired in the process 202 to perform packet transmission with the remote Bluetooth device 102 through the first Bluetooth communication circuit 111, so as to receive various transmissions from the remote Bluetooth device 102. Packets, or send various packets to the remote Bluetooth device 102. According to the operation description of the aforementioned process 202, the Bluetooth connection parameters used by the first Bluetooth circuit 110 and the remote Bluetooth device 102 for packet transmission may be acquired by the first Bluetooth circuit 110 itself, or may be other member circuits. (For example, the second Bluetooth circuit 120).

As mentioned above, various suitable packet handshaking mechanisms can be used between the first Bluetooth circuit 110 and the remote Bluetooth device 102 to reduce or avoid the occurrence of missing packets.

In the process 408, the secondary Bluetooth circuit will operate in the indirect reception mode to receive the packet without the serial code transferred from the first Bluetooth circuit 110. While the secondary Bluetooth circuit is operating in the indirect reception mode, the secondary Bluetooth circuit does not sniff the packets sent by the remote Bluetooth device 102. In addition, when the secondary Bluetooth circuit is operating in the sniffing mode, if the secondary Bluetooth circuit needs to send commands, data, or related packets to the remote Bluetooth device 102, it must forward the commands, data, or related packets through the primary Bluetooth circuit. To the remote Bluetooth device 102.

For example, in the process 408, the second control circuit 127 can control the second Bluetooth circuit 120 to operate in the indirect reception mode, and use the second Bluetooth communication circuit 121 to receive the packet without the serial code transferred from the first Bluetooth circuit 110. However, the second Bluetooth communication circuit 121 will not be used to sniff the packet sent by the remote Bluetooth device 102. That is, during the period when the second Bluetooth circuit 120 is operating in the indirect reception mode, the second Bluetooth circuit 120 indirectly obtains the packet sent by the remote Bluetooth device 102 without a serial code through the first Bluetooth circuit 110. If the second Bluetooth circuit 120 needs to send commands, data, or related packets to the remote Bluetooth device 102 during this period, the aforementioned commands, data, or related packets must be sent to the master Bluetooth circuit through the second Bluetooth communication circuit 121 The first Bluetooth circuit 110 of the role is then forwarded from the first Bluetooth circuit 110 to the remote Bluetooth device 102 to avoid the problem of packet conflict in the remote Bluetooth device 102.

As shown in FIG. 4, while the secondary Bluetooth circuit is operating in the indirect reception mode, the primary Bluetooth circuit will also intermittently perform the process 410 to check the data type of the packet transmitted from the remote Bluetooth device 102. For example, the first control circuit 117 of the first Bluetooth circuit 110 may use the first packet parsing circuit 113 to parse the packet received by the first Bluetooth communication circuit 111 (that is, the packet transmitted from the remote Bluetooth device 102 in the process 410). ) To obtain the data type of the packet. In practice, the first control circuit 117 can read the content of the serial code field in the packet transmitted from the remote Bluetooth device 102, or the content of other predetermined fields, to determine whether the data type of the packet belongs to the serial number. Code data is still data that does not have a serial code.

Next, the first control circuit 117 in this embodiment can perform the process 412 to determine whether the data type of the packet transmitted by the remote Bluetooth device 102 has changed. In practice, the first control circuit 117 can temporarily store the data type of the packet previously transmitted by the remote Bluetooth device 102 in an appropriate storage circuit (not shown in the figure) so as to communicate with the data type currently transmitted by the remote Bluetooth device 102 The data type of the packet is compared.

If the data type of the packet currently transmitted by the remote Bluetooth device 102 still belongs to data without a serial code, it usually means that the operation context of the multi-member Bluetooth device 100 has not changed. In this case, the first Bluetooth circuit 110 can repeat the operations of the aforementioned process 406, process 410, and process 412, and the second Bluetooth circuit 120 can continue to operate in the indirect reception mode.

Conversely, if the data type of the packet currently transmitted by the remote Bluetooth device 102 becomes data with a serial code, it usually means that the operating context of the multi-member Bluetooth device 100 has changed. In this case, the first Bluetooth circuit 110 can perform the process 502 in FIG. 5.

In the process 502, the first control circuit 117 of the first Bluetooth circuit 110 generates a second mode switching instruction for instructing the second Bluetooth circuit 120 to switch from the indirect reception mode to the sniffing mode, and communicates via the first Bluetooth The circuit 111 transmits the second mode switching instruction to the second Bluetooth circuit 120.

In the process 504, the second Bluetooth communication circuit 121 will receive from the first Bluetooth circuit 110 According to the second mode switching instruction, the second control circuit 127 will switch the operation mode of the second Bluetooth circuit 120 from the indirect reception mode to the sniffing mode according to the second mode switching instruction.

Then, the first Bluetooth circuit 110 will perform the process 506, and the second Bluetooth circuit 120 will perform the process 508.

In the process 506, the first control circuit 117 of the first Bluetooth circuit 110 will use the first Bluetooth communication circuit 111 to receive the packet with the serial code from the remote Bluetooth device 102, but the first control circuit 117 will not pass the first control circuit 117. The Bluetooth communication circuit 111 forwards the packet from the remote Bluetooth device 102 to the second Bluetooth circuit 120.

In the process 508, the second control circuit 127 of the second Bluetooth circuit 120 can use the second Bluetooth communication circuit 121 to sniff the serial code sent by the remote Bluetooth device 102 according to the Bluetooth connection parameters obtained in the process 202. Packet. In an embodiment, the second Bluetooth communication circuit 121 can sniff all Bluetooth packets sent by the remote Bluetooth device 102. In another embodiment, the second Bluetooth communication circuit 121 only sniffs the Bluetooth packets sent by the remote Bluetooth device 102 to the first Bluetooth circuit 110, and does not sniff the remote Bluetooth device 102 to send to the multi-member Bluetooth. Bluetooth packets of devices other than device 100. From the description of the foregoing process 202, it can be seen that the Bluetooth connection parameters used by the second Bluetooth communication circuit 121 to sniff the packet sent by the remote Bluetooth device 102 may be obtained by the second Bluetooth circuit 120 itself, or may be other members. Circuit (for example, the first Bluetooth circuit 110).

Next, the multi-member Bluetooth device 100 can perform the same operations as the aforementioned process 210 to process 216 in FIG. 2.

As can be seen from the foregoing description, while the second Bluetooth circuit 120 playing the role of the secondary Bluetooth circuit is operating in the indirect reception mode, the first Bluetooth circuit 110 playing the role of the primary Bluetooth circuit will intermittently check and determine that the remote Bluetooth device 102 is transmitting. Whether the data type of the incoming packet has changed from data without a serial code to data with a serial code. As long as the data type of the packet transmitted by the remote Bluetooth device 102 still belongs to data without a serial code, the first Bluetooth circuit 110 will not instruct the second Bluetooth circuit 120 to switch to the sniffing mode to avoid This avoids difficulty in determining whether the second Bluetooth circuit 120 misses the packet sent by the remote Bluetooth device 102.

Only when the data type of the packet from the remote Bluetooth device 102 changes from data without a serial code to data with a serial code, the first Bluetooth circuit 110 will instruct the second Bluetooth circuit 120 to receive the operation mode from the other The communication mode is switched to the sniffing mode. After the second Bluetooth circuit 120 switches to the sniffing mode, the first Bluetooth circuit 110 only needs to transmit the packets missed by the second Bluetooth circuit 120 to the second Bluetooth circuit 120, and does not need to forward all the packets sent by the remote Bluetooth device 102. Encapsulate the second Bluetooth circuit 120, so it can reduce the operating burden, power consumption, and heat generation of the first Bluetooth circuit 110, and can also extend the working time and standby time of the first Bluetooth circuit 110, and reduce the first Bluetooth circuit 110 Data transmission bandwidth requirements between the second Bluetooth circuit 120 and the second Bluetooth circuit 120.

Similarly, the multi-member Bluetooth device 100 can adaptively switch the operation mode of the third Bluetooth circuit 130 according to the change of the data type of the packet transmitted from the remote Bluetooth device 102 according to the aforementioned method.

Therefore, using the aforementioned operation modes of FIGS. 4 and 5, the main Bluetooth circuit in the multi-member Bluetooth device 100 can change the data type of the packet transmitted from the remote Bluetooth device 102 from data without a serial code to data with a serial code. At the same time, the operation mode of the secondary Bluetooth circuit is adaptively switched from the inter-receiving mode to the sniffing mode, and the matching operation between the primary Bluetooth circuit and the secondary Bluetooth circuit is changed accordingly, so it can be used in the multi-member Bluetooth device 100. A management mechanism such as load balancing, power consumption balancing, or heat balancing among the Bluetooth circuits can improve the overall performance of the multi-member Bluetooth device 100, prolong the service life of the Bluetooth circuits, or improve the user experience.

Please refer to FIG. 6 to FIG. 7, which show a simplified flowchart of the operation method of the multi-member Bluetooth device 100 of the present invention in a third embodiment.

In the embodiment of FIG. 6 and FIG. 7, during the period when the secondary Bluetooth circuit is operating in the indirect reception mode, the first Bluetooth circuit 110 acting as the main Bluetooth circuit will also intermittently perform the process 410 to check the remote Bluetooth device 102 The data type of the incoming packet. But in this example After performing the process 410, the first Bluetooth circuit 110 does not perform the aforementioned process 412, but performs the process 612 in FIG. 6 to generate and send a corresponding data type notification to the individual secondary Bluetooth circuits.

For example, the first control circuit 117 can generate a data type notification corresponding to the data type of the packet currently transmitted by the remote Bluetooth device 102 in the process 612, and send the data type notification to the first Bluetooth communication circuit 111 All secondary Bluetooth circuits. In practice, the aforementioned data type notification can be implemented in various appropriate information formats.

In the process 614, the secondary Bluetooth circuit receives the data type notification from the first Bluetooth circuit 110, and determines whether the data type of the packet transmitted by the remote Bluetooth device 102 has changed accordingly. For example, the second Bluetooth circuit 120 can receive the data type notification from the first Bluetooth circuit 110 through the second Bluetooth communication circuit 121 in the process 614, and the second control circuit 127 can determine the remote Bluetooth device based on the data type notification. 102 Whether the data type of the incoming packet has changed. In practice, the second control circuit 127 can notify the type of data previously transmitted by the first Bluetooth circuit 110, and temporarily store an appropriate storage circuit (not shown in the figure) so as to communicate with the data currently transmitted by the first Bluetooth circuit 110. Type notifications for comparison.

If the current data type notification shows that the data type of the packet of the remote Bluetooth device 102 still belongs to data without a serial code, it usually means that the operation context of the multi-member Bluetooth device 100 has not changed. In this case, the second Bluetooth circuit 120 can repeat the operation of the aforementioned process 408 to continue to operate in the indirect reception mode.

Conversely, if the current data type notification shows that the data type of the packet of the remote Bluetooth device 102 becomes data with a serial code, it usually means that the operating context of the multi-member Bluetooth device 100 has changed. In this case, the second control circuit 127 can perform the process 616 to generate a second mode switching request, and transmit the aforementioned second mode switching request to the first Bluetooth circuit 110 through the second Bluetooth communication circuit 121.

In the process 618, the first Bluetooth circuit 110 receives the second mode switching request from the second Bluetooth circuit 120 through the first Bluetooth communication circuit 111.

Next, the first Bluetooth circuit 110 will perform the process 702 in FIG. 7. In the process 702, the first The first control circuit 117 of a Bluetooth circuit 110 determines whether to allow the second Bluetooth circuit 120 to switch the operation mode. In this embodiment, after receiving the aforementioned second mode switching request, the first control circuit 117 can determine whether to allow the second Bluetooth circuit 120 to switch the operating mode according to a predetermined rule, and perform corresponding follow-up according to the result of the determination. Processing flow.

If the first control circuit 117 determines that the second Bluetooth circuit 120 is not allowed to switch the operation mode after the judgment, the process 704 can be performed. Conversely, if the first control circuit 117 decides to allow the second Bluetooth circuit 120 to switch the operation mode, the aforementioned process 502 can be performed.

Since the first Bluetooth circuit 110 allows the second Bluetooth circuit 120 to switch the operation mode, the second Bluetooth circuit 120 can switch from the indirect reception mode to the sniffing mode, and then the second Bluetooth circuit 120 will sniff the remote Bluetooth by itself. The packet sent by the device 102, so the first Bluetooth circuit 110 does not need to forward the packet sent by the remote Bluetooth device 102 to the second Bluetooth circuit 120. As a result, the computing load, power consumption, or heat generation of the second Bluetooth circuit 120 may increase, but the data bandwidth requirement between the first Bluetooth circuit 110 and the second Bluetooth circuit 120 can be reduced, and the first Bluetooth circuit 120 can also be reduced. The calculation load, power consumption, or calorific value of the Bluetooth circuit 110.

Therefore, after receiving the aforementioned second mode switching request, the first control circuit 117 can evaluate whether there are factors that are not suitable for the second Bluetooth circuit 120 to switch the operation mode at that time. If not, the second Bluetooth circuit 120 can be allowed to switch the operation mode. . For example, the first control circuit 117 may allow the second Bluetooth circuit 120 when the computing load of the second Bluetooth circuit 120 is lower than a predetermined level, the remaining power is higher than a predetermined threshold, and/or the temperature is lower than a predetermined temperature. The circuit 120 switches the operation mode. For another example, the first control circuit 117 may allow the second Bluetooth circuit 110 only when the computing load of the first Bluetooth circuit 110 is higher than a predetermined level, the remaining power is lower than a predetermined threshold, and/or the temperature is higher than a predetermined temperature. The Bluetooth circuit 120 switches the operation mode.

In the process 704, the first control circuit 117 can generate a rejection message indicating that the first bluetooth circuit 110 does not allow the second bluetooth circuit 120 to switch the operation mode, and pass it through the first bluetooth circuit. The communication circuit 111 transmits the rejection information to the second Bluetooth circuit 120.

In the process 706, the second Bluetooth circuit 120 may receive the rejection message from the first Bluetooth circuit 110 through the second Bluetooth communication circuit 121. In this case, the second control circuit 127 will control the second Bluetooth circuit 120 to continue to operate in the indirect reception mode according to the instruction of the rejection message, and repeat the operation of the aforementioned process 408.

In the process 502, the first control circuit 117 will generate a second mode switching instruction for instructing the second Bluetooth circuit 120 to switch from the indirect reception mode to the sniffing mode, and switch the second mode through the first Bluetooth communication circuit 111 The switching instruction is transmitted to the second Bluetooth circuit 120.

In the process 504, the second bluetooth communication circuit 121 receives the second mode switching instruction from the first bluetooth circuit 110, and the second control circuit 127 controls the second mode switching instruction of the second bluetooth circuit 120 according to the second mode switching instruction. The operation mode is switched from the inter-receiving mode to the sniffing mode.

Next, the multi-member Bluetooth device 100 can perform the same operations as the aforementioned process 506, process 508, and process 210 to process 216 in FIG. 5.

Please note that the aforementioned first control circuit 117 performs the determination procedure of the process 702 first, and then performs the process 502 after determining that the second Bluetooth circuit 120 can be allowed to switch the operating mode. Way. In practice, the first control circuit 117 can also skip the judgment procedure of the aforementioned flow 702 and proceed directly to the flow 502 after receiving the aforementioned second mode switching request.

As can be seen from the foregoing description, during the period when the second Bluetooth circuit 120 is operating in the indirect reception mode, the first Bluetooth circuit 110 will intermittently check the data type of the packet transmitted from the remote Bluetooth device 102 and generate a corresponding data type notification. , And the second Bluetooth circuit 120 will indirectly determine whether the data type of the packet sent by the remote Bluetooth device 102 has changed according to the data type notification generated by the first Bluetooth circuit 110. As long as the second bluetooth circuit 120 determines that the data type of the packet sent by the remote bluetooth device 102 still belongs to data without a serial code, the first bluetooth circuit 110 will not instruct the second bluetooth circuit 120 to switch to the sniffing mode to avoid connection It is difficult to confirm whether the second Bluetooth circuit 120 misses the remote Bluetooth device. Set the packet sent by 102.

Only when the second Bluetooth circuit 120 determines that the data type of the packet sent by the remote Bluetooth device 102 has changed from data without a serial code to data with a serial code, will the first Bluetooth circuit 110 instruct the second Bluetooth circuit 120 to change The operation mode is switched from the inter-receiving mode to the sniffing mode. After the second Bluetooth circuit 120 switches to the sniffing mode, the first Bluetooth circuit 110 only needs to transmit the packets missed by the second Bluetooth circuit 120 to the second Bluetooth circuit 120, and does not need to forward all the packets sent by the remote Bluetooth device 102. Encapsulate the second Bluetooth circuit 120, so it can reduce the operating burden, power consumption, and heat generation of the first Bluetooth circuit 110, and can also extend the working time and standby time of the first Bluetooth circuit 110, and reduce the first Bluetooth circuit 110 Data transmission bandwidth requirements between the second Bluetooth circuit 120 and the second Bluetooth circuit 120.

Similarly, the multi-member Bluetooth device 100 can adaptively switch the operation mode of the third Bluetooth circuit 130 according to the change of the data type of the packet transmitted from the remote Bluetooth device 102 according to the aforementioned method.

Therefore, using the aforementioned operation modes of FIGS. 6 and 7, the main Bluetooth circuit in the multi-member Bluetooth device 100 can change the data type of the packet transmitted from the remote Bluetooth device 102 from data without a serial code to data with a serial code. At the same time, the operation mode of the secondary Bluetooth circuit is adaptively switched from the inter-receiving mode to the sniffing mode, and the matching operation between the primary Bluetooth circuit and the secondary Bluetooth circuit is changed accordingly, so it can be used in the multi-member Bluetooth device 100. A management mechanism such as load balancing, power consumption balancing, or heat balancing among the Bluetooth circuits can improve the overall performance of the multi-member Bluetooth device 100, prolong the service life of the Bluetooth circuits, or improve the user experience.

Please refer to FIG. 8 to FIG. 9, which show a simplified flowchart of the operation method of the multi-member Bluetooth device 100 of the present invention in a fourth embodiment.

In the embodiments of FIG. 8 and FIG. 9, the operation mode of the multi-member Bluetooth device 100 in the process 202 and the processes 404 to 408 are the same as the foregoing embodiment in FIG. 4 or FIG. 6. In other words, the secondary Bluetooth circuit will operate in the indirect reception mode to receive packets without serial codes transferred from the primary Bluetooth circuit. But in this embodiment, the secondary Bluetooth circuit performs the flow After 408, the process 810 in FIG. 8 is also performed to check the data type of the packet transferred from the main Bluetooth circuit.

For example, the second control circuit 127 of the second Bluetooth circuit 120 may use the second packet parsing circuit 123 to analyze the packets received by the second Bluetooth communication circuit 121 (that is, the packets transferred from the first Bluetooth circuit 110) in the process 810. Packet) to obtain the data type of the packet. In practice, the second control circuit 127 can read the content of the serial code field in the packet sent by the first Bluetooth circuit 110, or the content of other predetermined fields, to determine whether the data type of the packet belongs to the sequence. Code data is still data that does not have a serial code.

Then, the second control circuit 127 can perform the process 812 to indirectly determine whether the data type of the packet sent by the remote Bluetooth device 102 has changed by determining whether the data type of the packet transferred from the first Bluetooth circuit 110 has changed. In practice, the second control circuit 127 can temporarily store the data type of the packet previously transmitted by the first Bluetooth circuit 110 in an appropriate storage circuit (not shown in the figure), so as to communicate with the data type currently transmitted by the first Bluetooth circuit 110. The data type of the packet is compared.

If the data type of the packet currently transmitted by the first Bluetooth circuit 110 still belongs to data without a serial code, it means that the data type of the current packet of the remote Bluetooth device 102 still belongs to data without a serial code, which usually represents multi-member Bluetooth. The operating context of the device 100 has not changed. In this case, the first Bluetooth circuit 110 can repeat the operation of the aforementioned process 406, and the second Bluetooth circuit 120 can continue to operate in the indirect reception mode, and repeat the aforementioned process 408, process 810, and process 812. Operation.

Conversely, if the data type of the packet currently transmitted by the first Bluetooth circuit 110 becomes data with a serial code, it means that the data type of the current packet of the remote Bluetooth device 102 becomes data with a serial code, which usually represents a multi-member Bluetooth device. The operating environment of 100 has been changed. In this case, the second Bluetooth circuit 120 can perform the aforementioned process 616 to generate a second mode switching request, and transmit the aforementioned second mode switching request to the first Bluetooth circuit 110 through the second Bluetooth communication circuit 121.

In the process 618, the first Bluetooth circuit 110 receives the second mode switching request from the second Bluetooth circuit 120 through the first Bluetooth communication circuit 111.

Next, the multi-member Bluetooth device 100 can perform the operation process in FIG. 9. The foregoing description of the operation of the corresponding process in FIG. 7 is also applicable to the embodiment in FIG. 9. For the sake of brevity, the description will not be repeated here.

As can be seen from the foregoing description, while the second Bluetooth circuit 120 playing the role of the secondary Bluetooth circuit is operating in the indirect reception mode, the second Bluetooth circuit 120 will intermittently check the data type of the packet transferred from the first Bluetooth circuit 110. It can indirectly determine whether the packet sent by the remote Bluetooth device 102 has changed from data without a serial code to data with a serial code. As long as the second bluetooth circuit 120 determines that the data type of the packet sent by the remote bluetooth device 102 still belongs to data without a serial code, the first bluetooth circuit 110 will not instruct the second bluetooth circuit 120 to switch to the sniffing mode to avoid connection It is difficult to confirm whether the second Bluetooth circuit 120 misses the packet sent by the remote Bluetooth device 102.

Only when the second Bluetooth circuit 120 determines that the data type of the packet sent by the remote Bluetooth device 102 has changed from data without a serial code to data with a serial code, will the first Bluetooth circuit 110 instruct the second Bluetooth circuit 120 to change The operation mode is switched from the inter-receiving mode to the sniffing mode. After the second Bluetooth circuit 120 switches to the sniffing mode, the first Bluetooth circuit 110 only needs to transmit the packets missed by the second Bluetooth circuit 120 to the second Bluetooth circuit 120, and does not need to forward all the packets sent by the remote Bluetooth device 102. Encapsulate the second Bluetooth circuit 120, so it can reduce the operating burden, power consumption, and heat generation of the first Bluetooth circuit 110, and can also extend the working time and standby time of the first Bluetooth circuit 110, and reduce the first Bluetooth circuit 110 Data transmission bandwidth requirements between the second Bluetooth circuit 120 and the second Bluetooth circuit 120.

Similarly, the multi-member Bluetooth device 100 can adaptively switch the operation mode of the third Bluetooth circuit 130 according to the change of the data type of the packet transmitted from the remote Bluetooth device 102 according to the aforementioned method.

Therefore, using the above-mentioned operation modes of FIG. 8 and FIG. 9, the main Bluetooth circuit in the multi-member Bluetooth device 100 can determine the data of the packet sent by the remote Bluetooth device 102 in the secondary Bluetooth circuit. When the type changes from data without serial code to data with serial code, adaptively switch the operating mode of the secondary Bluetooth circuit from the inter-receiving mode to the sniffing mode, and change the connection between the main Bluetooth circuit and the secondary Bluetooth circuit accordingly. Therefore, it is possible to achieve load balancing, power consumption balance, or heat balance management mechanisms among the multiple Bluetooth circuits of the multi-member Bluetooth device 100, so it can improve the overall performance of the multi-member Bluetooth device 100 and extend the Bluetooth circuit Longevity, or to improve user experience.

Please refer to FIG. 10 to FIG. 11, which show a simplified flowchart of the operation method of the multi-member Bluetooth device 100 of the present invention in a fifth embodiment.

In the embodiments of FIG. 10 and FIG. 11, the operation mode of the multi-member Bluetooth device 100 in the process 202 and the process 404 to the process 810 are the same as the foregoing embodiment in FIG. 8. In other words, the secondary Bluetooth circuit will operate in the indirect reception mode to receive packets without serial codes transferred from the primary Bluetooth circuit. However, in this embodiment, after the secondary Bluetooth circuit performs the process 810, the process 812 in FIG. 8 will not be performed, but the process 1012 in FIG. 10 will be performed to generate and send a corresponding data type notification to the master Bluetooth. Circuit.

For example, the second control circuit 127 of the second Bluetooth circuit 120 can generate a data type notification corresponding to the data type of the packet currently forwarded by the first Bluetooth circuit 110 in the process 1012, and pass it through the second Bluetooth communication circuit 121 The data type notification is sent to the first Bluetooth circuit 110. In practice, the aforementioned data type notification can be implemented in various appropriate information formats.

In the process 1014, the first Bluetooth circuit 110 can receive the data type notification from the second Bluetooth circuit 120 through the first Bluetooth communication circuit 111, and the first control circuit 117 can indirectly determine the remote Bluetooth device based on the data type notification Whether the data type of the packet sent by 102 is changed. In practice, the first control circuit 117 can notify the type of data previously transmitted by the second Bluetooth circuit 120, and temporarily store an appropriate storage circuit (not shown in the figure) so as to communicate with the data currently transmitted by the second Bluetooth circuit 120. Type notifications for comparison.

If the current data type notification shows that the data type of the packet sent by the remote Bluetooth device 102 is still data without a serial code, it usually represents a multi-member Bluetooth device 100 The operating context of has not changed. In this case, the first Bluetooth circuit 110 can repeat the operation of the aforementioned process 406.

Conversely, if the current data type notification shows that the data type of the packet sent by the remote Bluetooth device 102 becomes data with a serial code, it usually means that the operating context of the multi-member Bluetooth device 100 has changed. In this case, the first control circuit 117 can perform the process 502 in FIG. 11 to generate a second mode switching instruction for instructing the second Bluetooth circuit 120 to switch from the indirect reception mode to the sniffing mode, and through the first A Bluetooth communication circuit 111 transmits the second mode switching instruction to the second Bluetooth circuit 120.

Next, the multi-member Bluetooth device 100 can perform the remaining operation process in FIG. 11. The foregoing description of the operation of the corresponding process in FIG. 5 is also applicable to the embodiment in FIG. 11. For the sake of brevity, the description will not be repeated here.

As can be seen from the foregoing description, during the period when the second Bluetooth circuit 120 is operating in the indirect reception mode, the second Bluetooth circuit 120 will intermittently check the data type of the packet transferred from the first Bluetooth circuit 110 and generate the corresponding data type. According to the data type notification generated by the second Bluetooth circuit 120, the first Bluetooth circuit 110 indirectly determines whether the data type of the packet sent by the remote Bluetooth device 102 has changed. As long as the first bluetooth circuit 110 determines that the data type of the packet sent by the remote bluetooth device 102 still belongs to data without a serial code, the first bluetooth circuit 110 will not instruct the second bluetooth circuit 120 to switch to the sniffing mode to avoid connection It is difficult to confirm whether the second Bluetooth circuit 120 misses the packet sent by the remote Bluetooth device 102.

Only when the first Bluetooth circuit 110 determines that the data type of the packet sent by the remote Bluetooth device 102 has changed from data without a serial code to data with a serial code, will the first Bluetooth circuit 110 instruct the second Bluetooth circuit 120 to change The operation mode is switched from the inter-receiving mode to the sniffing mode. After the second Bluetooth circuit 120 switches to the sniffing mode, the first Bluetooth circuit 110 only needs to transmit the packets missed by the second Bluetooth circuit 120 to the second Bluetooth circuit 120, and does not need to forward all the packets sent by the remote Bluetooth device 102. The packet is sent to the second Bluetooth circuit 120, so it can reduce the operational burden, power consumption, and cost of the first Bluetooth circuit 110. And heat generation can also extend the working time and standby time of the first Bluetooth circuit 110, and reduce the data transmission bandwidth requirement between the first Bluetooth circuit 110 and the second Bluetooth circuit 120.

Similarly, the multi-member Bluetooth device 100 can adaptively switch the operation mode of the third Bluetooth circuit 130 according to the change of the data type of the packet transmitted from the remote Bluetooth device 102 according to the aforementioned method.

Therefore, using the aforementioned operation modes of FIG. 10 and FIG. 11, the main Bluetooth circuit in the multi-member Bluetooth device 100 can change the data type of the packet transmitted from the remote Bluetooth device 102 from data without a serial code to data with a serial code. At the same time, the operation mode of the secondary Bluetooth circuit is adaptively switched from the inter-receiving mode to the sniffing mode, and the matching operation between the primary Bluetooth circuit and the secondary Bluetooth circuit is changed accordingly, so it can be used in the multi-member Bluetooth device 100. A management mechanism such as load balancing, power consumption balancing, or heat balancing among the Bluetooth circuits can improve the overall performance of the multi-member Bluetooth device 100, prolong the service life of the Bluetooth circuits, or improve the user experience.

Please note that the number of member circuits of the multi-member Bluetooth device 100 in each of the foregoing embodiments can be reduced to two, or can be increased according to the needs of actual circuit applications.

In the specification and the scope of the patent application, certain words are used to refer to specific elements, and those skilled in the art may use different terms to refer to the same elements. This specification and the scope of the patent application do not use differences in names as a way to distinguish elements, but use differences in functions as a basis for distinction. The "include" mentioned in the specification and the scope of the patent application is an open term and should be interpreted as "include but not limited to". In addition, the term "coupling" here includes any direct and indirect connection means. Therefore, if it is described in the text that the first element is coupled to the second element, it means that the first element can be directly connected to the second element through electrical connection, wireless transmission, optical transmission, or other signal connection methods, or through other elements or connections. The means is indirectly connected to the second element electrically or signally.

The description method of "and/or" used in the description includes one of the listed items or any combination of multiple items. In addition, unless otherwise specified in the specification, Any word in the singular case also includes the meaning of the plural case.

The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should fall within the scope of the present invention.

100: Multi-member Bluetooth device

102: Remote Bluetooth device

110: The first Bluetooth circuit

111: The first Bluetooth communication circuit

113: The first packet analysis circuit

115: The first clock synchronization circuit

117: The first control circuit

120: second bluetooth circuit

121: Second Bluetooth communication circuit

123: The second packet analysis circuit

125: Second clock synchronization circuit

127: second control circuit

130: third bluetooth circuit

Claims (6)

A multi-member Bluetooth device (100) for data transmission with a remote Bluetooth device (102). The multi-member Bluetooth device (100) includes: a main Bluetooth circuit (110), including: a first Bluetooth communication circuit (111); a first packet parsing circuit (113) configured to analyze the packets received by the first Bluetooth communication circuit (111); and a first control circuit (117) coupled to the first Bluetooth communication circuit (111) and the first packet parsing circuit (113); and a pair of Bluetooth circuit (120), configured to be selectively operable in a sniffing mode or a receiving mode, the second Bluetooth circuit (120) includes: A second Bluetooth communication circuit (121); a second packet analysis circuit (123) configured to analyze the packets received by the second Bluetooth communication circuit (121); and a second control circuit (127), coupled to The second Bluetooth communication circuit (121) and the second packet analysis circuit (123); wherein, while the secondary Bluetooth circuit (120) is operating in the inter-receiving mode, the first control circuit (117) will use The first Bluetooth communication circuit (111) receives the packet from the remote Bluetooth device (102), and uses the first Bluetooth communication circuit (111) to forward the received packet to the secondary Bluetooth circuit (120), And the second control circuit (127) will use the second Bluetooth communication circuit (121) to receive the packet transferred from the first Bluetooth communication circuit (111), but the second control circuit (127) will not use the first Bluetooth communication circuit (111). The second Bluetooth communication circuit (121) sniffs the packet sent by the remote Bluetooth device (102); when the data type of the packet transmitted by the remote Bluetooth device (102) changes, the secondary Bluetooth circuit (120) Will switch from the receiving mode to the sniffing mode; and While the secondary Bluetooth circuit (120) is operating in the sniffing mode, the first control circuit (117) will use the first Bluetooth communication circuit (111) to receive packets from the remote Bluetooth device (102), And the second control circuit (127) will use the second Bluetooth communication circuit (121) to sniff the packet sent by the remote Bluetooth device (102). The multi-member Bluetooth device (100) according to claim 1, wherein the first control circuit (117) and the second control circuit ( One of 127) will check the data type of the packet from the remote Bluetooth device (102), and one of the first control circuit (117) and the second control circuit (127) will determine the data Whether the type is changed; where, if the data type changes from data without a serial code to data with a serial code, the first control circuit (117) will send a mode switch instruction to the first Bluetooth communication circuit (111) The second Bluetooth communication circuit (121) instructs the secondary Bluetooth circuit (120) to switch from the inter-receiving mode to the sniffing mode. The multi-member Bluetooth device (100) according to claim 2, wherein, while the secondary Bluetooth circuit (120) is operating in the inter-receiving mode, the first control circuit (117) is further configured to check the remote The data type of the packet sent from the Bluetooth device (102), and determine whether the data type has changed; wherein, if the data type changes from data without a serial code to data with a serial code, the first control circuit (117) A mode switching instruction is sent to the second Bluetooth communication circuit (121) through the first Bluetooth communication circuit (111) to instruct the secondary Bluetooth circuit (120) to switch from the indirect reception mode to the sniffing mode. The multi-member Bluetooth device (100) according to claim 2, wherein, while the secondary Bluetooth circuit (120) is operating in the inter-receiving mode, the first control circuit (117) is further configured to check the remote The data type of the packet sent from the Bluetooth device (102), and a corresponding data type notification is sent to the second Bluetooth communication circuit (121) through the first Bluetooth communication circuit (111), and the second control circuit (127) ) Is also set to determine whether the data type has changed according to the notification of the data type; Wherein, if the data type changes from data without a serial code to data with a serial code, the second control circuit (127) will send a mode switching request to the first Bluetooth communication circuit (121) through the second Bluetooth communication circuit (121). The communication circuit (111) requests the main Bluetooth circuit (110) to allow the secondary Bluetooth circuit (120) to switch from the inter-receiving mode to the sniffing mode. The multi-member Bluetooth device (100) according to claim 2, wherein, while the secondary Bluetooth circuit (120) is operating in the inter-receiving mode, the second control circuit (127) checks the first Bluetooth communication The data type of the packet transmitted by the circuit (111) can be used to indirectly determine whether the data type of the packet transmitted by the remote Bluetooth device (102) has changed; among them, if the data type is changed from a data without a serial code to a serial Code data, the second control circuit (127) will send a mode switch request to the first Bluetooth communication circuit (111) through the second Bluetooth communication circuit (121) to request the main Bluetooth circuit (110) to allow The secondary Bluetooth circuit (120) is switched from the inter-receiving mode to the sniffing mode. The multi-member Bluetooth device (100) according to claim 2, wherein, while the secondary Bluetooth circuit (120) is operating in the inter-receiving mode, the second control circuit (127) checks the first Bluetooth communication The circuit (111) transfers the data type of the packet, and transmits a corresponding data type notification to the first Bluetooth communication circuit (111) through the second Bluetooth communication circuit (121), and the first control circuit (117) ) Is also set to indirectly determine whether the data type of the packet transmitted from the remote Bluetooth device (102) has changed according to the data type notification; wherein, if the data type changes from data without a serial code to data with a serial code, then The first control circuit (117) transmits a mode switching instruction to the second Bluetooth communication circuit (121) through the first Bluetooth communication circuit (111) to instruct the secondary Bluetooth circuit (120) to receive the communication mode Switch to this sniffing mode.

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