Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2006-10-17
2009-06-09
Cox, Cassandra (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S565000
Reexamination Certificate
active
07545196
ABSTRACT:
Clocks are distributed efficiently to regions of a specialized processing block in a PLD. Multiple clocks are selected from a larger universe of clocks and distributed to the specialized processing block, but the choices of clocks at the individual functional regions, or stages of functional regions, are less than fully flexible. In some cases, an entire region may use one clock. In another case, portions of a stage within a region that previously had been able to select individual clocks must use one clock for the entire stage. In another case, only a subset of the selected clocks is available for a particular region, but that subset is flexibly distributable within the region. In another case, a clock may be selectable for each stage of each functional region directly from the larger universe of available clocks, avoiding the need for circuitry to select the multiple clocks from the larger universe.
REFERENCES:
patent: 6028463 (2000-02-01), Albu et al.
patent: 7145362 (2006-12-01), Bergendahl et al.
patent: 7178075 (2007-02-01), Warnock et al.
patent: 2005/0242867 (2005-11-01), Ghia et al.
Altera Corporation, “DSP Blocks in Stratix® II ad Stratix® II GX Devices,”Stratix® II Device Handbook, vol. 2, pp. 6-1 through 6-34 (Feb. 2007).
Hutton Michael D.
Lin Yi-Wen
Neto David
Tharmalingam Kumara
Altera Corporation
Cox Cassandra
Ingerman Jeffrey H.
Ropes & Gray LLP
LandOfFree
Clock distribution for specialized processing block in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clock distribution for specialized processing block in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock distribution for specialized processing block in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4061477