Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Regenerating or restoring rectangular or pulse waveform
Reexamination Certificate
2006-06-06
2006-06-06
Pascal, Robert J. (Department: 2817)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Regenerating or restoring rectangular or pulse waveform
C327S166000, C331S074000, C331S175000
Reexamination Certificate
active
07057434
ABSTRACT:
A crystal oscillator circuit which does not produce runt pulses when the oscillator is turned on or off. The circuit includes a crystal oscillator, an integrator which integrates the energy in a plurality of pulses, a threshold circuit which is active when the output of the integrator reaches a pre-specified threshold and gating circuits which gate the output of the crystal oscillator to the output terminal only when the threshold circuit has reached the specified threshold.
REFERENCES:
patent: 6028491 (2000-02-01), Stanchak et al.
patent: 6518809 (2003-02-01), Kotra
patent: 6545549 (2003-04-01), Swoboda
patent: 6759881 (2004-07-01), Kizer et al.
patent: 6771099 (2004-08-01), Cavazos et al.
patent: 6952123 (2005-10-01), Kizer et al.
Gehring Mark R.
Mitchell Eric
Moen Russell R.
Stenger Joseph D.
Cypress Semiconductor Corp.
Goodley James
Marger Johnson & McCollom PC
Pascal Robert J.
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