Dual wireless Bluetooth device master-slave switching method, device, device and audio system

A bluetooth device and wireless technology, applied in the direction of wireless communication, transmission system, digital transmission system, etc., can solve the problems affecting user experience, large interval of audio data received by bluetooth playback devices, bandwidth consumption, etc., to reduce data capacity and complexity The effect of data calculation operations, reducing audio playback delay and stuttering, and reducing bandwidth loss

Active Publication Date: 2021-07-30
ZHUHAI JIELI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can reduce the interval between Bluetooth playback devices receiving audio data, thereby reducing audio playback delay and stuttering. However, because master-slave switching information exchange is still required, bandwidth consumption will still be caused. If the Bluetooth playback master device and the Bluetooth playback slave device The communication quality between them is poor, and more master-slave switching information needs to be resent. In this case, the bandwidth consumption will be greatly aggravated, and the interval between receiving audio data by the Bluetooth playback device will be relatively large, and audio playback delays and Caton phenomenon, affecting user experience

Method used

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  • Dual wireless Bluetooth device master-slave switching method, device, device and audio system
  • Dual wireless Bluetooth device master-slave switching method, device, device and audio system
  • Dual wireless Bluetooth device master-slave switching method, device, device and audio system

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Experimental program
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Embodiment 1

[0038] Usually, when the master and slave wireless Bluetooth devices send and receive audio data, there will be an idle time interval in a standard time slot of the Bluetooth communication standard. This time interval is generally reserved for digital processing time such as the consumption of some hardware implementation protocols, or switching between sending and receiving, Simulation processing time such as frequency hopping stabilization, and with the improvement of hardware performance, for example, this time interval is not fully utilized. Based on the above findings, in order to reduce the bandwidth consumption caused by master-slave switching, this embodiment discloses a master-slave switching method for dual wireless Bluetooth devices, which is suitable for wireless slave devices, that is, the master-slave switching request end. The device is a wireless Bluetooth headset as an example for description.

[0039] Please refer to figure 2 , which is a flowchart of a met...

Embodiment 2

[0075] This embodiment discloses a master-slave switching method for a dual wireless Bluetooth device, which is suitable for a wireless master device, that is, a master-slave switching receiving end. The wireless master device is a wireless Bluetooth headset as an example for illustration. Please refer to Figure 4 , which is a flowchart of a method for master-slave switching of a dual wireless Bluetooth device disclosed in this embodiment, the method for master-slave switching of a dual wireless Bluetooth device includes:

[0076]Step S401: Receive the master-slave switching request iRSR sent by the wireless slave device at the sub-slot of the anchor point position of the master device through the established master-slave Bluetooth link. In this embodiment, the so-called anchor point is the moment or time period suitable for master-slave switching on the time axis, and the anchor point can be located through the standard time slot of Bluetooth. The anchor point position is a...

Embodiment 3

[0106] This embodiment discloses a master-slave switching device for dual wireless Bluetooth devices, which is suitable for wireless slave devices. Please refer to Figure 7 , which is a schematic structural diagram of a master-slave switching device for a dual wireless Bluetooth device disclosed in this embodiment, the master-slave switching device for a dual wireless Bluetooth device includes: an event acquisition module 701, a request generation module 702, a request sending module 703 and a first switching module 704, of which,

[0107] The event acquisition module 701 is used to obtain the switching trigger event of master-slave role switching; the request generation module 702 is used to generate the master-slave switching request iRSR according to the switch trigger event; The sub-slot preset at the anchor point position on the slave device sends the master-slave switching request iRSR to the wireless master device. The anchor point maps multiple standard time slots for...

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Abstract

The invention discloses a dual wireless bluetooth device master-slave switching method, device, device and audio system. The master-slave switching method of the wireless slave device includes: acquiring a switching trigger event for master-slave role switching; generating a master-slave switch according to the switching trigger event Request; send the master-slave switching request to the wireless master device at the sub-slot preset at the anchor point position of the slave device through the established master and slave Bluetooth links; when the target anchor point of the master-slave The master device performs master-slave role switching operations. The existing communication link is time-division multiplexed, and the master-slave switch is performed using the idle time interval in the standard time slot, so that the audio playback delay and the jamming phenomenon of the master-slave device can be reduced during the master-slave switch; effectively The position resource of the sub-slot is utilized, the transmission amount of communication information is reduced, and the bandwidth loss is further reduced.

Description

technical field [0001] The invention relates to the technical field of bluetooth data transmission, in particular to a master-slave switching method, device, equipment and audio system for dual wireless bluetooth devices. Background technique [0002] In the application of dual wireless Bluetooth communication, such as dual wireless Bluetooth headsets, dual wireless Bluetooth speakers and other scenarios, three Bluetooth devices need to communicate through at least two Bluetooth links, thus forming a dual wireless Bluetooth device communication system. That is, the dual wireless bluetooth device communication system includes three bluetooth devices, one of which is a bluetooth audio source device (such as a mobile phone, a notebook computer, etc.), and the other two are wireless bluetooth devices that play simultaneously (such as a dual wireless bluetooth headset, a double wireless bluetooth earphone, etc.) speakers, etc.). Wherein, the Bluetooth playback device connected t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/00H04L5/00H04W4/80H04W76/14H04W76/15
CPCH04B5/0006H04B5/0031H04L5/0078H04W4/80H04W76/14H04W76/15
Inventor 黄紫明王昌继罗广君
Owner ZHUHAI JIELI TECH
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