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Signal receiving method

A signal receiving and signal technology, applied in the field of communication, can solve problems such as sequence misalignment

Active Publication Date: 2020-12-22
GOOGOL TECH SHENZHEN LTD GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a signal receiving method for the problem of misalignment of the sequence of received data due to the introduction of line length transmission delay due to the existence of transmission distance between devices

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Embodiment Construction

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the ...

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Abstract

A signal receiving method for receiving a data signal sent by a slave device. The method comprises: collecting a data signal sent by a slave device to obtain a first sampling signal belonging to a local clock of the slave device; when a signal edge of the first sampling signal is detected, resetting a counter to zero and restarting counting; when a count value of the counter reaches 2+4n, collecting the first sampling signal to obtain a second sampling signal belonging to a local clock of a master device, and generating a sampling clock signal, wherein the frequency at which the data signal sent by the slave device is collected is quadruple the transmission rate at which the data signal is sent by the slave device; and performing sampling in the second sampling signal by using a sampling clock signal to obtain a sampling value, and when the sampling value meets rules of a transmission protocol, receiving the second sampling signal.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a signal receiving method. Background technique [0002] In industrial equipment, the communication between a large part of equipment adopts the method of protocol plus serial communication. The communication process is generally that device A sends data to device B, and then device B responds. According to the acquisition signal principle of the digital circuit, the requirements for the establishment and hold time, the reliable acquisition of the online signal by the equipment must meet the requirements of the sampling and holding time. At the same time, when processing the protocol, there is a certain transmission distance between devices, and the existence of this transmission distance will introduce line length transmission delay, resulting in misalignment of the sequence of received data. Contents of the invention [0003] Based on this, it is necessary to provide ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L7/00
CPCH04L7/0087H04L7/0331
Inventor 黄廉真
Owner GOOGOL TECH SHENZHEN LTD GUANGDONG