公开(公告)号：US20140218009A1

公开(公告)日：2014-08-07

申请号：US14241186

申请日：2011-08-29

申请人： David Canard ,  Matthieu Lecuyer

发明人： David Canard ,  Matthieu Lecuyer

IPC分类号： G01R22/00

CPC分类号： G01R22/00 ,  G01R29/023 ,  G04F10/005 ,  H03K3/0322

摘要： A device for measuring a duration of a level of an electrical signal, comprising first ring oscillator comprising inverting gates, whose electrical power supply is modulated by the electrical signal; second ring oscillator whose electrical power supply is not modulated by the electrical signal; first counting unit configured to count a total number of gate-to-gate transitions of a point of instability of the first ring oscillator, a point of instability being present at an inverting gate when a logic level at an input to the inverting gate is equal to a logic level at an output from the inverting gate; second counting unit configured to count a total number of gate-to-gate transitions of a point of instability of the second ring oscillator; and determining unit configured to determine a duration of a level of the electrical signal on a basis of values of the first and second counting units.

摘要翻译： 一种用于测量电信号电平持续时间的装置，包括第一环形振荡器，其包括反相门，其电源由电信号调制; 第二环形振荡器，其电源不被电信号调制; 第一计数单元，被配置为对第一环形振荡器的不稳定点的门到门转换的总数进行计数，当反相门的输入端的逻辑电平相等时，不稳定点存在于反相门 在反相门的输出处为逻辑电平; 第二计数单元，被配置为对第二环形振荡器的不稳定点的门到门转换的总数进行计数; 以及确定单元，被配置为基于所述第一和第二计数单元的值来确定所述电信号的电平的持续时间。