Method for achieving synchronous playing of Bluetooth earpieces

A Bluetooth headset, timing synchronization technology, applied in earpiece/headphone accessories, amplifiers, microphones, etc., can solve the problems of difficulty in playing music at the same time, affecting the quality of music, and difficulty in synchronization between left and right ears, so as to increase the number of retransmissions. , the effect of increasing the number of retransmissions and improving reliability

Inactive Publication Date: 2018-06-22
BESTECHNIC SHANGHAI CO LTD
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AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned existing true wireless earphone systems, it is often difficult to achieve better synchronization between the left and right e

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  • Method for achieving synchronous playing of Bluetooth earpieces
  • Method for achieving synchronous playing of Bluetooth earpieces
  • Method for achieving synchronous playing of Bluetooth earpieces

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Embodiment Construction

[0032] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0033] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, and related technical terms should be familiar to those skilled in the art. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps, unless otherwise specified. The content of the present invention will be described below through specific embodiments. According to the embodiments of the present invention, the method for realizing synchronous blueto...

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Abstract

The invention provides a method for achieving synchronous playing of Bluetooth earpieces. The method comprises the steps as follows: intelligent equipment divides an audio into a left channel audio signal and a right channel audio signal, and separately sends the same to a left Bluetooth earpiece and a right Bluetooth earpiece via an A2DP protocol, wherein the intelligent equipment sends the leftchannel signal and the right channel signal at the start time of a slot, and the duration time of each slot is fixed; and a timed synchronization error and/or a carrier synchronization error of the left Bluetooth earpiece and the right Bluetooth earpiece uses a phase-locked loop to adjust crystal oscillation frequency, so that the clock frequency of the left Bluetooth earpiece and the right Bluetooth earpiece is the same as that of the intelligent equipment, and meanwhile, the start time of a timed synchronization signal is synchronous with the start time of the slot in which the intelligent equipment sends the left channel signal and the right channel signal. According to the method provided by the invention, the clock synchronization of the left Bluetooth earpiece and the right Bluetoothearpiece is achieved, the error can be controlled within 1us, and the synchronous music playing quality of the left Bluetooth earpiece and the right Bluetooth earpiece is greatly improved.

Description

technical field [0001] The invention relates to the technical field of bluetooth communication, in particular to a method for realizing synchronous playback of bluetooth earphones. Background technique [0002] With the progress of society and the improvement of people's living standards, earphones have become an indispensable daily necessities for people. Traditional wired earphones are connected to smart devices (such as smartphones, laptops, tablets, etc.) through wires, which will restrict the wearer's movement, especially in sports situations. At the same time, the winding and pulling of the headphone cable, as well as the stethoscope effect all affect the user experience. Ordinary Bluetooth headsets cancel the connection between the headset and the smart device, but there is still a connection between the left and right ears. True wireless stereo headphones came into being. [0003] One implementation of the existing true wireless earphones is that the smart device ...

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Application Information

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IPC IPC(8): H04R1/10
CPCH04R1/1091H04R2201/10H04R5/04H04R2420/07H04S1/005
Inventor 童伟峰张亮崔东升王玉龙
Owner BESTECHNIC SHANGHAI CO LTD
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