Static information storage and retrieval – Addressing – Sync/clocking
Reexamination Certificate
2008-06-30
2010-10-12
Hoang, Huan (Department: 2827)
Static information storage and retrieval
Addressing
Sync/clocking
C365S233100
Reexamination Certificate
active
07813217
ABSTRACT:
A semiconductor memory device is capable of generating a desired output enable signal without increasing an initial count value and bit number and generating a desired final output enable signal, without unnecessary reset operations, by reflecting column address strobe (CAS) latency information on an external clock count value. The semiconductor memory device includes a first output enable signal generating unit and a final output enable signal generating unit. The first output enable signal generating unit is configured to compare a first count value, which is obtained by counting a delay locked loop (DLL) clock, to a second clock count value, which is obtained by counting an external clock until a read command is input, and to output a first output enable signal. The final output enable signal generating unit is configured to output a final output enable signal generated by shifting the first output enable signal, according to CAS latency.
REFERENCES:
patent: 7342412 (2008-03-01), Kim
patent: 2003/0218921 (2003-11-01), Schrogmeier et al.
patent: 2006/0145894 (2006-07-01), Kim et al.
patent: 2007/0126468 (2007-06-01), Kim
patent: 2009/0274001 (2009-11-01), Jeong
patent: 1020060077551 (2006-07-01), None
patent: 1020070098038 (2007-10-01), None
Shin Beom-Ju
Yoon Sang-Sic
Blakely & Sokoloff, Taylor & Zafman
Hoang Huan
Hynix / Semiconductor Inc.
Radke Jay
LandOfFree
Semiconductor memory device and method for operating the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor memory device and method for operating the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device and method for operating the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4154268