Method and device for close-range two-way interaction through audio signal

Abstract

The invention discloses a method and device for close-range two-way interaction through an audio signal. The device comprises an interaction pen and a learning machine, wherein the interaction pen has audio playing and recording functions, and the learning machine has audio playing and recording functions. The interaction pen and the learning machine are each provided with an application program and an audio signal analyzing and processing program, and two-way interaction control is achieved through mutual conversion of a source control code and an audio signal through password application, channel coding, modulating and demodulating, and audio signal processing technologies. By the adoption of the method and device, safe, reliable, convenient, rapid and efficient non-contact two-way interaction control can be achieved within the close range, and the intelligent operation requirements of a user are met.

Description

technical field [0001] The invention relates to a method and equipment for short-distance two-way interaction through audio signals. Background technique [0002] The application software of existing stylus combined with learning machines (such as student tablet computers, student notebook computers, student point-reading machines, handheld learning machines, etc.) can only write and draw, but cannot communicate with the learning machine in a two-way non-contact manner. Realize the non-contact interaction between man, machine and pen, while the existing wireless communication technologies such as NFC (Near Field Communication, short-distance wireless communication), infrared and bluetooth have their own advantages in terms of safety, reliability and stability. Shortcomings and deficiencies, so it has not been applied to learning machines with higher security requirements. Contents of the invention [0003] In view of this, the technical problem to be solved by the present...

AI Technical Summary

Problems solved by technology

[0002] The application software of existing stylus combined with learning machines (such as student tablet computers, student notebook computers, student point-reading machines, handheld learning machines, etc.) can only write and draw, but cannot communicate with the learning machine in a two-way non-contact manner. Realize the non-contact interaction between man, machine and pen, while the existing wireless communication technologies such as NFC (Near Field Communication, short-distance wireless communication), infrared and bluetooth have their own advantages in terms of safety, reliability and stability. Shortcomings and deficiencies, so it has not been applied to learning machines with higher security requirements

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