Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method of Eliminating Backgroove Based on Schmitt Trigger

A Schmitt trigger, oscilloscope technology, applied in the pulse generation, electrical components, generating electrical pulses and other directions, can solve the problem of E1 signal return channel and other problems, and achieve the effect of eliminating bit errors

Active Publication Date: 2015-07-29
FENGHUO COMM SCI & TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a method based on the Schmitt trigger to eliminate the ditch, to solve the problem that the E1 signal generates a ditch near the threshold level, so as to obtain a one-time judgment result , so that the E1 business can realize error-free transmission

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Eliminating Backgroove Based on Schmitt Trigger
  • A Method of Eliminating Backgroove Based on Schmitt Trigger
  • A Method of Eliminating Backgroove Based on Schmitt Trigger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] The invention is based on the method of Schmitt trigger to eliminate the return ditch, which is realized by the E1 protection terminal board of ASON equipment, and the device with Schmitt trigger can be used as the receiving end of the signal, and the hysteresis voltage is selected by the Schmitt trigger , the Schmitt trigger can be built with a circuit, or a CPLD (Complex Programmable Logic Device) chip integrated with a Schmitt trigger can be selected. For a standard Schmitt trigger, the high and low level judgment is not a threshold voltage, but a positive threshold voltage (VTH) and a negative threshold voltage (VTL). When the input signal is rising from low level, the output changes to high level only when the input voltage is greater than VTH; when the input signal is falling from high level, only when the input voltage is less th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method used for eliminating return channels and based on a schmitt trigger, and relates to signal waveform return channel elimination in automatically switched optical network (ASON) equipment. The method includes that S1, input signals are measured through an oscillometer, the position and the amplitude of a signal return channel are determined; and S2, a hysteresis voltage is chosen, and the fact that the amplitude of the return channel does not cross two sides of the hysteresis voltage at the same time is guaranteed. The method resolves the problem that return channels are produced close to a threshold level of an E1 signal, therefore judgment results are obtained at a time, and E1 business achieves non-error-code transmission.

Description

technical field [0001] The invention relates to the elimination of signal waveform backgroove in ASON (Automatically Switched Optical Network, Automatically Switched Optical Network) equipment, specifically a method for eliminating backgroove based on a Schmidt trigger. Background technique [0002] In the existing communication network, there are still a large number of mobile base stations using the E1 interface; in addition, due to the particularity of the power network and other private networks, point-to-point transmission communication is mostly used, and a large number of E1 interfaces are used, so ASON equipment requires multiple E1 services interface. [0003] In the application scenarios of dedicated networks such as power grids, E1 signals need to implement point-to-multipoint, that is, one transmitter drives multiple receivers. According to the signal integrity (Signal integrity) theory, it is necessary to use a daisy chain (Daisy chain) topology. , and parallel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03K3/3565
Inventor 段毅华颖
Owner FENGHUO COMM SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com