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Acoustic signal sending and receiving method, device and system

A technology of sound wave signal and transmission method, which is applied in the field of sound wave signal transmission method and device, can solve the problems of low accuracy of sound wave data restoration, and achieve the effect of improving the accuracy rate

Active Publication Date: 2018-05-08
HISENSE
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a sound wave signal sending and receiving method, device and system thereof, which solves the technical problem of low accuracy of sound wave data restoration in the prior art

Method used

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  • Acoustic signal sending and receiving method, device and system

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Embodiment Construction

[0019] The specific implementation manners of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0020] The embodiment of the present application proposes a method for sending an acoustic wave signal, such as figure 1 As shown, the method includes the following steps:

[0021] Step S11: Perform hexadecimal encoding on the original sound data to obtain a coding sequence of the original sound data.

[0022] The original sound data is composed of various characters. If all the characters are modulated, it will consume too many resources, such as a huge database. Therefore, the original sound data needs to be encoded. Each character after encoding can be composed of limited A combination of codewords is used to represent, and frequency modulation of the encoded codeword stream can save resources.

[0023] After encoding the original sound data in hexadecimal, each encoded character can be represented by 0, 1, 2, 3, ...

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Abstract

This invention discloses an acoustic wave signal sending and receiving method and device, and a system thereof, and solves the technical problem that the accuracy rate of acoustic wave data restoration is low in the prior art. The method comprises the following steps: at a sending end of the acoustic wave signals, performing hex-coding to original sound data to obtain an original sound data coding sequence; after adding first set number of start codons and second set number of end codons at the front end and the ending of the original sound data coding sequence to obtain a sending coding sequence, performing frequency modulation to the sending coding sequence by using a mid-high frequency spectrum to obtain and send digitized modulation signals after sampling and quantifying according to a set frequency; at a receiving end of the acoustic wave signals, receiving and inversely quantifying to obtain discrete modulation sending signals; and after judging out the start codons and determining a beginning position of the effective codons of the sound signals, performing fast Fourier transform algorithm to discrete point in segments to obtain the modulation frequency corresponding to the codons. Thus, the original sound signal coding codons can be phased out so as to phase out the original sound data.

Description

technical field [0001] The invention belongs to the technical field of acoustic wave communication, and in particular relates to an acoustic wave signal sending method and device, an acoustic wave signal receiving method and device, and an acoustic wave signal sending and receiving system. Background technique [0002] Acoustic communication refers to converting the data to be transmitted into acoustic signals for transmission, so as to realize point-to-point or one-to-many communication; it is simple to implement and low in cost, and only needs broadcasting equipment and recording equipment at the sending end and receiving end. Applied in mobile terminals to applications such as file and data transmission and payment, the user experience is high. [0003] The process of sound wave communication is: first encode the original data to become a sound wave signal, then play it out through the speaker, receive the played data at the receiving end, and then decode it to obtain the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B11/00
CPCH04B11/00
Inventor 常晨李晓兰曹秀霞
Owner HISENSE
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