发明授权
- 专利标题: Signal detector with calibration circuit arrangement
- 专利标题(中): 具有校准电路布置的信号检测器
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申请号: US11383821申请日: 2006-05-17
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公开(公告)号: US07486114B2公开(公告)日: 2009-02-03
- 发明人: Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
- 申请人: Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Joscelyn G. Cockburn
- 主分类号: H03K5/19
- IPC分类号: H03K5/19
摘要:
A signal detector and method to detect the presence or absence of an incoming differential signal. The method nullifies the DC off-set of the signal detector so that it can detect a signal within a very narrow window. The common mode levels of the signal and reference paths are used for calibration which is done automatically by use of an embedded algorithm residing in a digital block. The calibration range and resolution are predetermined to cope with the technology, modeling, design methodology and human error.
公开/授权文献
- US20070271054A1 Signal Detector with Calibration Circuit Arrangement 公开/授权日:2007-11-22