Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Reexamination Certificate
2005-05-17
2005-05-17
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
C327S218000
Reexamination Certificate
active
06894549
ABSTRACT:
Various logic elements such as SR flip-flops, JK flip-flops, D-type flip-flops, master-slave flip-flops, parallel and serial shift registers, and the like are converted into non-volatile logic elements capable of retaining a current output logic state even though external power is removed or interrupted through the strategic addition of ferroelectric capacitors and supporting circuitry. In each case, the building blocks of a cross-coupled sense amplifier are identified within the logic element and the basic cell is modified and/or optimized for sensing performance.
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German Patent Office Action Dated Mar. 6, 2003 (English translation) of German Patent Application No. 102 07 312.0-42 to Ramtron International Corporation (which claims priority of the present application).
Hogan & Hartson L.L.P.
Kubida, Esq. William J.
Lam Tuan T.
Meza, Esq. Peter J.
Ramtron International Corporation
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