Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses
Reexamination Certificate
2005-10-11
2005-10-11
Du, Thuan (Department: 2116)
Electrical computers and digital processing systems: support
Synchronization of clock or timing signals, data, or pulses
C713S500000, C713S600000
Reexamination Certificate
active
06954869
ABSTRACT:
Methods and apparatus are provided for clock domain conversion in digital processing systems. The methods include operating a first circuit in a fast clock domain with a fast clock and operating a second circuit in a slow clock domain with a slow clock. To transfer signals from the fast clock domain to the slow clock domain, a first synchronization signal is asserted during each fast clock cycle in which a slow clock edge occurs. A fast signal is transferred from the fast clock domain to the slow clock domain on a fast clock edge when the first synchronization signal is asserted. To transfer signals from the slow clock domain to the fast clock domain, a second synchronization signal is asserted during each fast clock cycle that immediately follows a slow clock edge. A slow signal is transferred from the slow clock domain to the fast clock domain on a fast clock edge when the second synchronization signal is asserted.
REFERENCES:
patent: 5535377 (1996-07-01), Parks
patent: 5548620 (1996-08-01), Rogers
patent: 6516362 (2003-02-01), Magro et al.
patent: 6549593 (2003-04-01), Rumreich et al.
Analog Devices Inc.
Du Thuan
Stoynov Stefan
Wolf Greenfield & Sacks P.C.
LandOfFree
Methods and apparatus for clock domain conversion in digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for clock domain conversion in digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for clock domain conversion in digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3452171