Static information storage and retrieval – Read/write circuit – Data refresh
Reexamination Certificate
2011-03-08
2011-03-08
Ho, Hoai V (Department: 2827)
Static information storage and retrieval
Read/write circuit
Data refresh
C365S233100, C365S236000
Reexamination Certificate
active
07903491
ABSTRACT:
A refresh signal generating circuit of a semiconductor memory device includes a flag signal generator which generates a flag signal in response to a refresh signal and a precharge signal, a clock enable signal buffer which generates first and second buffer enable signals based on an external clock enable signal in response to the flag signal, and a chip select signal buffer which generates an internal chip select signal based on an external chip select signal in response to the flag signal.
REFERENCES:
patent: 6665225 (2003-12-01), Tsujino
patent: 7359269 (2008-04-01), You
patent: 2003/0185078 (2003-10-01), Tsukude
patent: 10-2001-0004670 (2001-01-01), None
patent: 10-2001-0057488 (2001-07-01), None
patent: 10-2004-0100249 (2004-12-01), None
patent: 10-2004-0102727 (2004-12-01), None
Cooper & Dunham LLP
Ho Hoai V
Hynix / Semiconductor Inc.
Lappas Jason
White John P.
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