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Gesture action judgment method and device, electronic equipment and storage medium

A gesture action, primitive technology, applied in the field of speakers, can solve the problems of intermodulation distortion of ultrasonic signals and voice signals, affecting ultrasonic ranging and related application judgment accuracy, etc.

Pending Publication Date: 2020-10-20
AAC TECH PTE LTD
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  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to address the above problems and provide a gesture action judging method, device, electronic equipment and storage medium for solving the problem of intermodulation distortion between the above-mentioned ultrasonic signal and voice signal, which affects the judgment accuracy of ultrasonic ranging and related applications

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  • Gesture action judgment method and device, electronic equipment and storage medium
  • Gesture action judgment method and device, electronic equipment and storage medium
  • Gesture action judgment method and device, electronic equipment and storage medium

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] The terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example,...

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Abstract

The invention provides a gesture action judgment method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining an original audio signal which comprises an original ultrasonic signal and an original voice signal; acquiring nonlinear parameters of the loudspeaker; performing pre-distortion processing on the original audio signal according to the nonlinearparameters of the loudspeaker to obtain a pre-distortion signal; wherein the pre-distortion signal is transmitted to the loudspeaker, and the loudspeaker plays and generates a target output signal; wherein the target output signal is acquired by a microphone after being propagated by a space medium; acquiring an acquisition signal acquired by the microphone; and determining whether a gesture action exists or not according to the frequency spectrum characteristics of the original ultrasonic signal and the acquired signal. The gesture action judgment method is advantaged in that a problem of intermodulation distortion in gesture judgment processing by utilizing the ultrasonic signal can be reduced, and judgment precision of ultrasonic ranging and related applications by utilizing the loudspeaker in the device is remarkably improved.

Description

【Technical field】 [0001] The present invention relates to the technical field of loudspeakers, in particular to a gesture action judging method, device, electronic equipment and storage medium. 【Background technique】 [0002] With the continuous development of the terminal equipment industry and the application of full screens, the terminal equipment is designed with ranging functions such as infrared ranging methods, and further gesture recognition functions to improve the interactive experience. [0003] However, infrared sensors have many limitations, such as difficulty in application in dark environments. Therefore, more and more terminal devices use the speaker of the terminal device (such as the receiver of the mobile phone) to transmit ultrasonic ranging, but due to the nonlinearity of the speaker system of the terminal device (such as the receiver of the mobile phone), the transmitted ultrasonic signal will be different from the voice signal. Intermodulation distort...

Claims

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Application Information

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IPC IPC(8): G06F3/16G06F3/01
CPCG06F3/162G06F3/017
Inventor 蓝睿智黄远芳叶利剑
Owner AAC TECH PTE LTD
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