Decoding method, decoding module, signal processing method and signal processing device

A decoding method and signal technology, applied in digital transmission systems, error prevention, electrical components, etc., can solve problems such as low decoding efficiency and large error in results

Active Publication Date: 2013-10-30
NATIONZ TECH INC
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Problems solved by technology

Existing audio decoding technologies are mainly used to process large quantities of audio signals such as music and speech, and the decoding efficiency is low, resulting in large errors in the results

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  • Decoding method, decoding module, signal processing method and signal processing device
  • Decoding method, decoding module, signal processing method and signal processing device
  • Decoding method, decoding module, signal processing method and signal processing device

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Embodiment Construction

[0097] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0098] The decoding method provided in this embodiment is based on differential Manchester encoding. Therefore, in order to better understand the technical solution, the following briefly describes differential Manchester encoding.

[0099]The data unit in this embodiment is called a symbol (that is, a bit), and a symbol is represented by a square wave or a sine wave with a waveform of "high-low" or "low-high". When sending data, the sender in this embodiment first needs to encode the data to be sent using differential Manchester encoding, and differential Manchester encoding uses a cycle of a complete sine wave or square wave (or other waveforms) as encoding Period, that is, a complete cycle of a sine wave or square wave corresponds to an encoding value (that is, a symbol value). In each encoding period, the phase of the waveform...

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Abstract

The invention discloses a decoding method, a decoding module, a signal processing method and a signal processing device, wherein the decoding method, the decoding module, the signal processing method and the signal processing device are based on difference Manchester encoding. In the decoding process of the decoding method, signals based on the difference Manchester encoding are sampled according to a preset sampling interval, a series of sampling sites are obtained, then the amplitude-time characteristic of the obtained sampling sites is converted into the time characteristic, and thus time stream data corresponding to the series of sampling sites are obtained; then, according to the time difference relation between the intersection point of the waveform phase overturning point corresponding to a code element 0 and a code element 1 in the difference Manchester encoding and the X axis and the last intersection point of the waveform corresponding to a previous code element and the X axis, a code element value is analyzed from the time stream data, the obtained code element value is converted, and then original data sent by a sender can be obtained. The decoding process is simple, decoding efficiency and decoding accuracy are high, and particularly the secret key communication real-time performance and precision requirements can be well met.

Description

technical field [0001] The present invention relates to a decoding method and a signal processing method, in particular to a decoding method, module, and signal processing method and device based on differential Manchester coding. Background technique [0002] In recent years, with the continuous development of smart mobile devices, there are more and more applications based on the audio interface, which is a necessary port for smart mobile devices. Whether the audio communication method is efficient or not becomes the key to whether the audio interface key device can be widely used. The existing audio decoding technology is mainly used to process a large number of audio signals such as music and speech, and the decoding efficiency is low, and the error of the obtained result is relatively large. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide a decoding method, module, and signal processing method and devi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 王倩
Owner NATIONZ TECH INC
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