公开(公告)号：US20110178767A1

公开(公告)日：2011-07-21

申请号：US13079214

申请日：2011-04-04

Applicant: JAMES E. BARTLING

Inventor： JAMES E. BARTLING

IPC: G06F15/00

CPC classification number: G01R27/2605 ,  G01R29/023 ,  G01R31/2884 ,  G01R31/3167 ,  G01R31/31725 ,  G01R31/31727 ,  G04F10/04 ,  G04F10/105

Abstract: A time period of an event is determined by charging a known value capacitor from a constant current source during the event. The resultant voltage on the capacitor is proportional to the event time period and may be calculated from the resultant voltage and known capacitance value. Capacitance is measured by charging a capacitor from a constant current source during a known time period. The resultant voltage on the capacitor is proportional to the capacitance thereof and may be calculated from the resultant voltage and known time period. A long time period event may be measured by charging a first capacitor at the start of the event and a second capacitor at the end of the event, while counting clock times therebetween. Delay of an event is done by charging voltages on first and second capacitors at beginning and end of event, while comparing voltages thereon with a reference voltage.

Abstract translation: 在事件期间，通过从恒定电流源对已知值的电容器充电来确定事件的时间段。 电容器上的合成电压与事件时间周期成比例，可以根据合成电压和已知电容值计算。 在已知的时间段内通过从恒定电流源对电容器充电来测量电容。 电容器上的合成电压与其电容成比例，并且可以由所得到的电压和已知的时间周期来计算。 可以通过在事件开始时对第一电容器充电并且在事件结束时对第二电容器进行计数，同时计数它们之间的时钟时间来测量长时间段事件。 通过在事件开始和结束时在第一和第二电容器上充电电压，同时将其上的电压与参考电压进行事件的延迟。