Static information storage and retrieval – Read/write circuit
Reexamination Certificate
2008-01-08
2008-01-08
Dinh, Son (Department: 2824)
Static information storage and retrieval
Read/write circuit
C365S189070, C365S203000
Reexamination Certificate
active
07317642
ABSTRACT:
An overdrive period control device includes a pre-charge circuit connected to a node on which a potential is detected and for raising a potential at the node to a first potential; a delay element one terminal of which is connected to the node; a charge circuit supplying a power source voltage to the other terminal of the delay element at the input timing of a signal from the outside and raising the potential at the node to the power source voltage; and a comparison circuit comparing the potential at the node with a reference potential and detecting the timing at which both levels of the potentials coincide. The device outputs a signal indicating a period determined by the input timing of the signal from the outside and the timing in which the comparison circuit detects that the levels coincide.
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Dinh Son
Elpida Memory Inc.
Foley & Lardner LLP
Nguyen Dang
LandOfFree
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