Burr removing device and method

A glitch and follower circuit technology, applied in the field of digital circuits, can solve the problem of glitches in the output signal of Schmitt triggers

Inactive Publication Date: 2006-10-18
HUAWEI TECH CO LTD
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The defect of this method is: if the amplitude of the glitch signal exceeds the hysteresis range, the output signal of the Schmitt

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
  • Burr removing device and method
  • Burr removing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the burr elimination device of the present invention includes an inversion follower circuit and an inversion control circuit.

[0033] After the output level is inverted, the inversion follower circuit automatically turns off the inversion enable, waits for the inversion control circuit to give a signal to allow inversion, and then turns on the inversion enable, and responds to the inversion change of the input signal again.

[0034] The inversion control circuit samples the output signal of the inversion follower circuit at the local clock frequency, and sends an inversion permission signal to the inversion follower circuit after n (n≥0) local clock cycles after the sampling detects that the output signal inversion occurs.

[003...

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

A method for removing bur off includes automatically closing turnover function by turnover follow-up circuit when turnover output level is turned over, having a preset time delay under control of turnover control circuit then starting turnover function of turnover follow-up circuit. The device for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a digital circuit technology, in particular to a burr eliminating device and method. Background technique [0002] In any digital circuit design, the correctness of the signal is very important. When there are burrs in the signal, it often causes false triggering and false sampling of the circuit, resulting in the operation error of the entire circuit system. [0003] Although there are many reasons for signal glitches, such as inter-signal interference, impedance mismatch, signal reflection, logic competition, and hazards, etc., these glitches are mostly generated during the rising and falling edges. [0004] In the design of digital circuits, especially high-speed digital circuits, how to eliminate signal burrs is a problem that needs to be solved emphatically. In the prior art, there are the following methods for removing burrs, and they are briefly described below. [0005] 1. Eliminate glitches with redundant items. In ...

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
IPC IPC(8): H03K17/26H03K17/00H03K17/28
Inventor 甘卫东周光剑
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap