Adaptive control method of earphone antenna and earphone

Abstract

The invention provides an earphone antenna adaptive control method and an earphone, and the method comprises the following steps: the intensity of a first signal received by a first antenna and the intensity of a second signal received by a second antenna of the earphone are detected in a preset time, and the center radiation direction of the first antenna is different from the center radiation direction of the second antenna; comparing the first signal strength received by the first antenna with the second signal strength received by the second antenna; and when the first signal strength and the second signal strength meet a preset condition, controlling a change-over switch of the earphone to enable the antenna with relatively high signal strength in the first antenna and the second antenna to be connected to a radio frequency port of the earphone, and controlling the change-over switch to enable the antenna with relatively low signal strength in the first antenna and the second antenna to be connected to the ground. According to the adaptive control method and the earphone, the antenna with relatively strong signals in the first antenna and the second antenna can be selected to work according to the connection signal strength, and the problem of radiation dead angles of a single antenna of the earphone is solved.

Description

technical field [0001] The invention relates to the technical field of acoustics, in particular to an adaptive control method for an earphone antenna and an earphone. Background technique [0002] With the development of society and the advancement of science and technology, acoustic technology is developing rapidly, and earphone products are more and more widely used, especially Bluetooth earphones. [0003] At the same time, with the promotion and popularization of Bluetooth headsets, mass consumers have higher and higher requirements for the appearance and performance of Bluetooth headsets: in terms of product appearance, the requirements are becoming smaller and more compact; The transmission distance and stability also put forward new higher requirements. [0004] The earphone antenna is an important part required by various electronic devices. For Bluetooth earphones, the earphone antenna is used to transmit voice and music data in a wireless transmission / reception ma...

AI Technical Summary

Problems solved by technology

[0005] At present, each Bluetooth headset (including single-ear, dual-ear True Wireless Stereo (TWS) headset, stereo headset, etc.) has only one antenna. According to the principle of antenna radiation, any single antenna will have the most radiation. The weak direction is the dead zone, so the earphones will be stuck in the sound due to signal coverage in the dead zone or blind zone during actual wearing and use, or even disconnected in serious cases.

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