发明授权
- 专利标题： Dynamic power noise event counter
- 专利标题（中）： 动态功率噪声事件计数器
-
申请号： US12606534申请日： 2009-10-27
-
公开(公告)号： US08013669B2公开(公告)日： 2011-09-06
- 发明人: Shingo Suzuki , Toshinari Takayanagi
- 申请人： Shingo Suzuki , Toshinari Takayanagi
- 申请人地址： US CA Cupertino
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertino
- 代理机构： Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- 代理商 Lawrence J. Merkel; Erik A. Heter
- 主分类号： G05F1/10
- IPC分类号： G05F1/10
摘要：
An apparatus and method for detecting noise in a power supply voltage. A circuit may include a voltage generation unit coupled to receive a power supply voltage, and a detection unit. The voltage generation unit may generate first and second voltages using the power supply voltage, and may vary the relationship therebetween responsive to fluctuations in the power supply voltage. A detection unit may detect the variations in the relationship between the first and second voltages that result from fluctuations in the power supply voltage. Responsive to detecting the variations, the detection unit may generate pulses to be provided to a counter. The counter may update a count value responsive to receiving pulses.
公开/授权文献
- US20110096891A1 Dynamic Power Noise Event Counter 公开/授权日：2011-04-28
信息查询
IPC分类:
