Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division
Reexamination Certificate
2006-10-19
2008-11-11
Lam, Tuan T (Department: 2816)
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Pulse multiplication or division
C377S048000
Reexamination Certificate
active
07450680
ABSTRACT:
This invention adds a non-linear sweep accumulator to the conventional sigma-delta fractional-N divider to produce a N.F value that is a polynomial function of time. This allows any non-linear sweep profiles to be approximated.
REFERENCES:
patent: 6236703 (2001-05-01), Riley
patent: 6353649 (2002-03-01), Bockleman et al.
patent: 6614813 (2003-09-01), Dudley et al.
patent: 2007/0211819 (2007-09-01), Greenberg
Agilent Technologie,s Inc.
Kee Pamela L.
Lam Tuan T
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