Audio communication modulation way self-adaptive method, system, device and electronic sign tool

Abstract

Provided are a self-adaptive method, system and device for audio communication modulation modes, and an electronic signature tool. The method comprises: a first device using a first modulation mode supported by the first device to modulate identifier information about the first modulation mode supported by the first device and identifier information about a first modulation mode supported by a second device to generate a first audio detection frame, and sending same to the second device; when the first audio detection frame is correct, according to the first modulation mode supported by the second device, the second device modulating the identifier information about the first modulation mode supported by the first device and the identifier information about the first modulation mode supported by the second device to generate a first audio detection feedback frame, and sending same to the first device; and when the first audio detection feedback frame is correct, the first device conducting two-way communications in the demodulation mode for the first modulation mode supported by the first device and the demodulation mode for the first modulation mode supported by the second device. The present invention can determine the audio modulation mode and demodulation mode quickly, thereby enabling audio data to interact quickly, and reducing the degree of distortion of the interactive data greatly.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to an audio communication modulation mode adaptive method, an audio communication modulation mode adaptive system, an audio data transmission device for a mobile terminal and an electronic signature tool. Background technique [0002] Currently, when audio data is transmitted through an audio interface, different mobile terminals have different audio transmission characteristics. If it is necessary to be compatible with the audio transmission characteristics of different mobile terminals, the device that communicates with the mobile terminal (such as an electronic signature tool) needs to automatically Experiment with audio data of different modulation schemes to find the most suitable modulation scheme for use with each different mobile terminal. [0003] However, there are very few means of audio communication at present. Therefore, there is no suitable way to be compa...

AI Technical Summary

Problems solved by technology

[0003] However, there are very few means of audio communication at present, so there is no suitable way to be compatible with the communication between different mobile terminals and different electronic signature tools at the same time

[0004] Moreover, since the communication parties are not necessarily fixed, and both communication parties may have different audio transmission characteristics, therefore, in the transmission process of audio data, if no matching modulation method and demodulation method are used, the data will be The interaction speed is slow, and the interactive data is easy to be distorted and distorted.

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