×

Method of waveform time stamping for minimizing digitization artifacts in time interval distribution measurements

  • US 6,571,186 B1
  • Filed: 08/31/2000
  • Issued: 05/27/2003
  • Est. Priority Date: 09/14/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of time stamping threshold crossing points of an input signal having one or more nominal time intervals comprising the steps of:

  • a) establishing a threshold level for measuring a time mark of the threshold crossing point;

    b) acquiring digital data samples representative of the input signal prior and subsequent to the threshold crossing;

    c) interpolating between at least a first data sample above and a first data sample below the threshold crossing point;

    d) storing the time mark for the interpolated threshold crossing point as the time stamp; and

    e) repeating steps (a) through (d) while varying the threshold level, using a distribution of random threshold offset values for the threshold crossings of the input signal to minimize digitization artifacts in the time marks and to acquire a sequence of time stamps for the threshold crossing points.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×