中国科学院沈阳自动化研究所机构知识库
Advanced  
SIA OpenIR  > 工业信息学研究室  > 专利
专利名称: 自动检测并校正总线极性的电路结构
其他题名: Circuit structure for automatically detecting and correcting polarity of bus
作者: 谢闯; 刘志峰; 杨志家; 张超; 王建军; 王剑
所属部门: 工业信息学研究室
专利权人: 中国科学院沈阳自动化研究所
专利代理: 沈阳科苑专利商标代理有限公司
专利国别: 中国
专利类型: 实用新型
专利状态: 失效(未缴年费)
摘要: 本实用新型公开一种自动检测并校正总线极性的电路结构,它包括:边沿检测电路,通过媒体访问单元接现场总线,同步总线输入信号和进行边沿检测信号的生成,接收移位比较电路的边沿检测使能信号;时钟恢复电路,生成采样时钟信号;移位比较电路,接收同步后的总线信号,对同步后的总线信号进行移位和比较,提供总线移位输出信号、总线极性信号,边沿检测使能信号和极性检测信号;相位校正电路,接收总线移位输出信号、总线极性信号,在极性检测信号有效情况下输出正极性的总线信号。采用本实用新型可以自动检测基于IEC61158-2标准的曼彻斯特编码的极性,可以自动校正,并可满足IEC1158-2现场总线物理层标准中相关的性能指标。
英文摘要: The utility model discloses a circuit structure for automatically detecting and correcting the polarity of a bus, which comprises an edge detection circuit, a clock restoring circuit, a shift comparison circuit and a phase correction circuit, wherein, the edge detection circuit is connected with a fieldbus through a media access unit, synchronizes bus input signals and performs generation of an edge detection signal and receives an edge detection enabling signal of the shift comparison circuit the clock restoring circuit generates a sampling clock signal the shift comparison circuit receives the synchronized bus signal, performs shifting and comparison to the synchronized bus signal and provides a bus shift output signal, a bus polar signal, the edge detection enabling signal and a polarity detection signal and the phase correction circuit receives the bus shift output signal and the bus polar signal and outputs a bus signal with positive polarity under the condition of effective polarity detection signal. Due to the adoption of the circuit structure, the utility model can automatically detect the polarity of the manchester code based on the IEC61158-2 standard, can perform automatic correction and can meet the related performance indexes in the IEC1158-2 fieldbus physics layer standard.
优先权数据: CN20082231793U
是否PCT专利:
申请日期: 2008-12-17
公开日期: 2009-10-07
授权日期: 2009-10-07
专利申请号: CN200820231793.8
公布/公告号: CN201322874Y
语种: 中文
产权排序: 1
内容类型: 专利
URI标识: http://ir.sia.cn/handle/173321/12779
Appears in Collections:工业信息学研究室_专利

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
CN200820231793.8.pdf(657KB)专利--开放获取View Download

Recommended Citation:
谢闯,刘志峰,杨志家,等. 自动检测并校正总线极性的电路结构. CN201322874Y. 2009.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[谢闯]'s Articles
[刘志峰]'s Articles
[杨志家]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[谢闯]‘s Articles
[刘志峰]‘s Articles
[杨志家]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: CN200820231793.8.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院沈阳自动化研究所 - Feedback
Powered by CSpace