Digital programmable frequency divider

Details Digital programmable frequency divider Digital programmable frequency divider

2011-05-17

2011-05-17

Luu, An T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S118000, C327S119000

Reexamination Certificate

active

07944253

ABSTRACT:
A digital programmable frequency divider is constructed of Rapid Single Flux Quantum (RSFQ) logic elements. The logic elements may include an RSFQ non-destructive readout cell (NDRO), RSFQ D flip-flop and an RSFQ T flip-flop. A digital word comprising N bits is used to control the amount of frequency division and the frequency divider selectively imparts a respective frequency division for any of 2nstates that can be represented by the digital word. The RSFQ logic elements utilize Josephson junctions which operate in superconducting temperature domains.

REFERENCES:
patent: 6781435 (2004-08-01), Gupta et al.

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