TWI765224B - Wireless bluetooth (bt) audio output system and control method thereof - Google Patents

Abstract

A control method for a wireless bluetooth (BT) audio output system includes: establishing an active link between a main BT controller to a first BT smart device among a plurality of BT smart devices; establishing an inactive link between an extra BT controller to a second BT smart device among a plurality of BT smart devices; and playing, through an audio output element, media data from the active link of the first BT smart device by the main BT controller.

Description

Wireless bluetooth audio output system and control method thereof

The present invention relates to a wireless bluetooth audio output system and a control method thereof.

In terms of Bluetooth technology, the Multipoint mode is a new trend in current development. Using the multipoint mode, you can use the Bluetooth headset with two or more Bluetooth mobile phones at the same time. For example, if a Bluetooth headset is connected to two Bluetooth mobile phones at the same time, the user can answer incoming calls from the two Bluetooth mobile phones without disconnecting and reconnecting.

Currently, the Bluetooth headset uses a time division method to allow two or more Bluetooth mobile phones to share the resources of the Bluetooth headset. However, since only one bluetooth phone is allowed to use a bluetooth headset at a time. Therefore, when switching to use the Bluetooth headset with another Bluetooth phone, additional delay may be caused.

According to an embodiment of the present application, a wireless Bluetooth audio output system is proposed, which is connected to a plurality of Bluetooth smart devices. There are a plurality of Bluetooth connections between the Bluetooth smart devices and the wireless Bluetooth audio output system, and the Bluetooth connections include: An active connection and at least one non-active connection, the wireless Bluetooth audio output system includes: a master Bluetooth controller, coupled to the active connection and responsible for serving the active connection; a pair of Bluetooth controllers, connected and It is responsible for serving the at least one non-active connection, and the main Bluetooth controller is coupled to the secondary Bluetooth controller; and an audio output unit is coupled to the main Bluetooth controller. The master Bluetooth controller plays the media data transmitted by the active connection through the audio output unit.

According to another embodiment of the present application, a control method of a wireless Bluetooth audio output system is proposed, including: establishing an active connection to a first Bluetooth smart device of a plurality of Bluetooth smart devices by a master Bluetooth controller; controlling a pair of Bluetooth smart devices establishing at least one non-active connection to a second Bluetooth smart device of the plurality of Bluetooth smart devices; and the master Bluetooth controller transmits the media data transmitted from the first Bluetooth smart device through the active connection through an audio message output unit while playing.

In order to have a better understanding of the above-mentioned and other aspects of the present invention, the following specific examples are given and described in detail in conjunction with the accompanying drawings as follows:

The technical terms in this specification refer to the common terms in the technical field. If some terms are described or defined in this description, the interpretations of these terms are subject to the descriptions or definitions in this description. Each embodiment of the present disclosure has one or more technical features. Under the premise of possible implementation, those skilled in the art can selectively implement some or all of the technical features in any embodiment, or selectively combine some or all of the technical features in these embodiments.

FIG. 1 shows a functional block diagram of a wireless Bluetooth audio output system 100 according to an embodiment of the present application. As shown in FIG. 1 , a wireless Bluetooth audio output system 100 according to an embodiment of the present application includes a wireless Bluetooth audio output device 110 and a charging box 120 . The wireless Bluetooth audio output device 110 includes a main Bluetooth controller mBIC and a speaker SP (speaker SP may also be referred to as an audio output unit), while the charging box 120 includes a secondary Bluetooth controller eBIC. The main Bluetooth controller mBIC is coupled to the speaker SP. The main Bluetooth controller mBIC is wired or wirelessly coupled to the secondary Bluetooth controller eBIC. The wireless bluetooth audio output device 110 is, for example, but not limited to, a wireless bluetooth headset or a wireless bluetooth speaker and the like, and a similar wireless bluetooth audio output device.

FIG. 2 shows a functional block diagram of a wireless Bluetooth audio output system 200 according to another embodiment of the present application. According to another embodiment of the present invention, the wireless Bluetooth audio output system 200 includes: a main Bluetooth controller mBIC, a speaker SP, and a secondary Bluetooth controller eBIC. The main Bluetooth controller mBIC is coupled to the speaker SP. The main Bluetooth controller mBIC is wired or wirelessly coupled to the secondary Bluetooth controller eBIC. The wireless bluetooth audio output system 200 is, for example, but not limited to, a wireless bluetooth headset or a wireless bluetooth speaker and the like, and a similar wireless bluetooth audio output device.

That is, in FIG. 1, the main Bluetooth controller mBIC and the secondary Bluetooth controller eBIC are located in two independent devices (the wireless Bluetooth audio output device 110 and the charging box 120) respectively. In Figure 2, the main Bluetooth controller mBIC and the secondary Bluetooth controller eBIC are integrated into the same independent device.

The wireless bluetooth audio output system 100 is coupled to two bluetooth mobile phones PHA and PHB, for example, through bluetooth, wherein the bluetooth mobile phone can also be called a bluetooth smart device. The Bluetooth connection between the wireless Bluetooth audio output system 100 and the Bluetooth mobile phone PHA is called L1, and the Bluetooth connection between the wireless Bluetooth audio output system 100 and the Bluetooth mobile phone PHB is called L2. One of the Bluetooth connections L1 and L2 is an active link, and the other is an inactive link. As known, the active connection means that the mobile phone can play audio through the wireless Bluetooth audio output device 110, while the non-active connection is used to keep the mobile phone connected to the wireless Bluetooth audio output device (but the mobile phone has not yet played audio). control). In addition, the connection LE represents the connection between the main Bluetooth controller mBIC and the secondary Bluetooth controller eBIC.

That is to say, in the embodiment of this case, the main Bluetooth controller mBIC is responsible for serving the active connection, and is also responsible for the connection with the secondary Bluetooth controller eBIC. The secondary Bluetooth controller eBIC is responsible for serving the non-active connection, so that the non-active connection can also maintain the connection to the wireless Bluetooth audio output system.

For the convenience of explanation, the operation of the wireless Bluetooth audio output system 100 in FIG. 1 is taken as an example for description. Those skilled in the art can deduce the operation of the wireless Bluetooth audio output system 200 in FIG. 2 from this.

FIG. 3 shows a schematic diagram of media streaming of the wireless Bluetooth audio output system according to an embodiment of the present application. As shown in FIG. 3, here, it is assumed that the Bluetooth connection L1 is an active connection, that is, the media data MD of the Bluetooth mobile phone PHA can be broadcast on the speaker SP of the wireless Bluetooth audio output system 100; and it is assumed that The Bluetooth connection L2 is an inactive connection, that is, the media data MD of the Bluetooth mobile phone PHB cannot be broadcast on the speaker SP of the wireless Bluetooth audio output system 100 . Among them, ACK stands for acknowledgement (acknowledge) signal.

As can be seen from Fig. 3, since the Bluetooth connection L1 is an active connection, the media data MD of the Bluetooth mobile phone PHA can always be broadcast by the speaker SP of the wireless Bluetooth audio output system 100, that is, it is currently an active connection. The Bluetooth connection L1 can always use the headset resources. In addition, in terms of the piconet master, both the Bluetooth mobile phone PHA and the Bluetooth mobile phone PHB can be used as the piconet master.

In the embodiment of this case, the main Bluetooth controller mBIC can select an appropriate time slot (time slot) to synchronize with the secondary Bluetooth controller eBIC. For example, the main Bluetooth controller mBIC can select the time slot T1 ( The time slot T1 can also be called an empty time slot, because in this empty time slot, the active connection does not send data to the main Bluetooth controller mBIC) to synchronize with the secondary Bluetooth controller eBIC (as shown in step 310), so Data transmission that affects active connections can be avoided.

In principle, the Bluetooth connection L2, which is currently not actively connected, will not be allocated to earphone resources. However, the Bluetooth connection L2 that is not actively connected can remain connected to the secondary Bluetooth controller eBIC. That is, the secondary Bluetooth controller eBIC will share resources with non-active connections, but the secondary Bluetooth controller eBIC will not share resources with active connections.

FIG. 4 shows a schematic diagram of active connection switching of the wireless Bluetooth audio output system according to an embodiment of the present application. In the embodiment of this case, when necessary, the master Bluetooth controller mBIC can perform active connection switching. As shown in Figure 4, it is assumed that the Bluetooth connection L1 is an active connection. For example, but not limited to, when the bluetooth mobile phone PHB, which is not actively connected, receives an incoming call or a music playback request in time slot T2, the main bluetooth controller mBIC performs active connection switching. After switching, the Bluetooth connection L2 becomes an active connection, and the Bluetooth connection L1 becomes an inactive connection. In addition, when the master Bluetooth controller mBIC performs active connection switching, the master Bluetooth controller mBIC may synchronize with the slave Bluetooth controller eBIC (as shown in step 410).

Through the above embodiments, the main Bluetooth controller mBIC can support realtime streaming, and the secondary Bluetooth controller eBIC can support non-active connection. In addition, the secondary Bluetooth controller eBIC can support more non-active connections without affecting the live streaming of active connections.

FIG. 5 shows a wireless Bluetooth audio output system according to another embodiment of the present application. As shown in Figure 5, with the architecture in Figure 1 or Figure 2, the secondary Bluetooth controller eBIC can support up to 4 non-active connections without affecting the live streaming of active connections. line, among which, PHC-PHE is also a Bluetooth mobile phone. This is also within the spirit of this case.

Of course, regardless of whether the secondary Bluetooth controller eBIC supports or serves one or more non-active connections, the primary Bluetooth controller mBIC serves a single and only active connection. In addition, the main Bluetooth controller mBIC is also connected to the secondary Bluetooth controller eBIC.

FIG. 6 shows a flowchart of a control method of a wireless Bluetooth audio output system disclosed in another embodiment of the present application. The control method of the wireless Bluetooth audio output system includes: establishing an active connection to a first Bluetooth smart device of a plurality of Bluetooth smart devices by a master Bluetooth controller (step 610 ); establishing at least one non-active Bluetooth device by a pair of Bluetooth controllers Connecting to a second Bluetooth smart device of the plurality of Bluetooth smart devices (step 620); and sending the media data transmitted by the first Bluetooth smart device through the active connection through an audio output unit by the master Bluetooth controller and play (step 630).

As explained by the above embodiments, in the embodiment of the present application, by allowing the secondary Bluetooth controller eBIC to support or serve one or more non-active connections, the main Bluetooth controller mBIC serves a single and unique active connection. In this way, the wireless Bluetooth audio output system of the embodiment of the present case can serve multiple Bluetooth mobile phones without affecting the real-time streaming of the active connection, and the connection to these Bluetooth mobile phones can be kept uninterrupted. Moreover, the additional delay caused by switching shared resources in the prior art can also be reduced.

To sum up, although the present invention has been disclosed by the above embodiments, it is not intended to limit the present invention. Those skilled in the art to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

100: Wireless Bluetooth audio output system 110: Wireless Bluetooth audio output device 120: Charging case mBIC: Master Bluetooth Controller SP: Horn eBIC: Secondary Bluetooth Controller PHA,PHB,PHC,PHD,PHE:Bluetooth phone L1, L2, LE: connection 610~630: Steps

FIG. 1 shows a functional block diagram of a wireless Bluetooth audio output system according to an embodiment of the present application. FIG. 2 shows a functional block diagram of a wireless Bluetooth audio output system according to another embodiment of the present application. FIG. 3 shows a schematic diagram of media streaming of the wireless Bluetooth audio output system according to an embodiment of the present application. FIG. 4 shows a schematic diagram of active connection switching of the wireless Bluetooth audio output system according to an embodiment of the present application. FIG. 5 shows a wireless Bluetooth audio output system according to another embodiment of the present application. FIG. 6 shows a flowchart of a control method of a wireless Bluetooth audio output system disclosed in another embodiment of the present application.

100: Wireless Bluetooth audio output system

110: Wireless Bluetooth audio output device

120: Charging case

mBIC: Master Bluetooth Controller

SP: Horn

eBIC: Secondary Bluetooth Controller

PHA,PHB:Bluetooth phone

L1, L2, LE: connection

Claims (14)

A wireless bluetooth audio output system is connected to a plurality of bluetooth smart devices, there are a plurality of bluetooth connections between the bluetooth smart devices and the wireless bluetooth audio output system, the bluetooth connections include an active connection and at least one Non-active connection, the wireless Bluetooth audio output system includes: a master Bluetooth controller coupled to the active connection and responsible for serving the active connection; a pair of bluetooth controllers connected and responsible for serving the at least one inactive connection, and the main bluetooth controller is coupled to the auxiliary bluetooth controller; and an audio output unit, coupled to the master Bluetooth controller, Wherein, the main Bluetooth controller plays the media data transmitted by the active connection through the audio output unit. The wireless Bluetooth audio output system as described in claim 1, wherein the primary Bluetooth controller synchronizes with the secondary Bluetooth controller in an empty time slot. The wireless Bluetooth audio output system as described in item 1 of the patent application scope, wherein the master Bluetooth controller is responsible for switching the active connection. The wireless Bluetooth audio output system as described in item 3 of the patent application scope, wherein a first connection of a first Bluetooth smart device of one of the Bluetooth smart devices is the active connection, and one of the Bluetooth smart devices A second connection of the second Bluetooth smart device is the at least one non-active connection. When the second Bluetooth smart device receives an incoming call or a music playback request, the main Bluetooth controller switches the active connection. The first connection of the first Bluetooth smart device is switched to the at least one inactive connection, and the second connection of the second Bluetooth smart device is switched to the active connection. The wireless bluetooth audio output system as described in item 3 of the patent application scope, wherein when the main bluetooth controller performs active connection switching, the main bluetooth controller synchronizes with the sub bluetooth controller. The wireless bluetooth audio output system as described in item 1 of the patent application scope, wherein the main bluetooth controller and the auxiliary bluetooth controller are both located in the same bluetooth headset. The wireless bluetooth audio output system as described in claim 1, wherein the main bluetooth controller is located in a bluetooth headset, and the auxiliary bluetooth controller is located in a charging box. A control method of a wireless Bluetooth audio output system, comprising: establishing an active connection to a first bluetooth smart device one of the plurality of bluetooth smart devices by a master bluetooth controller; establishing at least one inactive connection to a second bluetooth smart device of a plurality of bluetooth smart devices by a pair of bluetooth controller; and The main Bluetooth controller plays the media data transmitted by the first Bluetooth smart device through the active connection through an audio output unit. The control method described in Item 8 of the scope of the patent application further includes: The primary Bluetooth controller is synchronized with the secondary Bluetooth controller in an empty time slot. The control method as described in claim 8, wherein the master Bluetooth controller is responsible for switching the active connection. The control method as described in claim 10, wherein when the second bluetooth smart device receives an incoming call or a music playback request, the main bluetooth controller performs active connection switching, so as to connect the first bluetooth smart device to the first A first connection of the Bluetooth smart device is switched to the at least one inactive connection, and a second connection of the second Bluetooth smart device is switched to the active connection. The control method as described in claim 10, wherein when the master Bluetooth controller performs active connection switching, the master Bluetooth controller synchronizes with the secondary Bluetooth controller. The control method as described in item 8 of the patent application scope, wherein the main Bluetooth controller and the secondary Bluetooth controller are both located in the same Bluetooth headset. The control method as described in claim 8, wherein the main Bluetooth controller is located in a Bluetooth headset, and the secondary Bluetooth controller is located in a charging box.

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