Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2006-02-06
2010-06-08
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S100000
Reexamination Certificate
active
07733146
ABSTRACT:
A delay line appropriate for use in a POR circuit or other integrated circuit in a space environment combines three separate circuit techniques to improve performance without unnecessarily increasing circuit area or adding to manufacturing costs when compared to a simple inverter delay line. The delay line of the present invention uses the selective placement of capacitors throughout the delay line, one-sided current starving, and the incorporation of one-sided Schmitt trigger circuits. Performance of the delay line is substantially immune to SEGR events (“Single Event Gate Rupture”) and SET events (“Single Event Transients”). Spurious signals produced by SEGR and SET events are quickly and substantially attenuated.
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Aeroflex Colorado Springs Inc.
Cheng Diana J
Donovan Lincoln
Hawranek Scott J.
Hogan & Hartson LLP
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