| Abstract: Methods are presented for adjusting trigger threshold values to
compensate for drift in the quiescent level of a signal monitored for
initiating a data recording event, thereby avoiding false triggering
conditions. Initial threshold values are periodically adjusted by
re-measuring the quiescent signal level, and adjusting the threshold
values by an offset computation based upon the measured quiescent signal
level drift. Re-computation of the trigger threshold values can be
implemented on time based or counter based criteria. Additionally, a
qualification width counter can be utilized to implement a requirement
that a trigger threshold criterion be met a given number of times prior
to initiating a data recording event, further reducing the possibility of
a false triggering situation. |
| Filed: 12/11/2007 |
| Application Number: 11/954024 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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