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Master-slave switching method and device for double wireless Bluetooth equipment, equipment and audio system

A bluetooth device and wireless technology, applied in transmission system, wireless communication, near-field transmission system, etc., can solve problems such as large interval of receiving audio data, audio playback delay, affecting user experience, etc. Effects of playback delay and freezing, reduced power consumption, reduced data capacity, and complex data calculation operations

Active Publication Date: 2020-05-05
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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  • Master-slave switching method and device for double wireless Bluetooth equipment, equipment and audio system
  • Master-slave switching method and device for double wireless Bluetooth equipment, equipment and audio system
  • Master-slave switching method and device for double wireless Bluetooth equipment, equipment and audio system

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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 dual wireless Bluetooth devices, 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 an...

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 master-slave switching method and device for double wireless Bluetooth equipment, equipment and an audio system. The master-slave switching method comprises the following steps: acquiring a switching trigger event of master-slave role switching; generating a master-slave switching request according to the switching trigger event; sending a master-slave switching request to a wireless master device through preset sub-time slots of an established master and slave Bluetooth link at the anchor point position of the slave device end; and when the target anchor point of master-slave switching arrives, executing master-slave role switching with the current wireless master device. The existing communication link is subjected to time division multiplexing, and master-slaveswitching is carried out by utilizing an idle time interval in a standard time slot, so that the phenomena of audio playing delay and jamming of master-slave equipment can be reduced during master-slave switching; position resources of the sub time slots are effectively utilized, communication information transmission quantity is reduced, and 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 Applications(China)
IPC IPC(8): H04B5/00H04L5/00H04W4/80H04W76/14H04W76/15
CPCH04L5/0078H04W4/80H04W76/14H04W76/15H04B5/00H04B5/72
Inventor 黄紫明王昌继罗广君
Owner ZHUHAI JIELI TECH
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