Static information storage and retrieval – Read/write circuit – Signals
Reexamination Certificate
2006-02-07
2006-02-07
Nguyen, VanThu (Department: 2824)
Static information storage and retrieval
Read/write circuit
Signals
C365S191000, C365S233100
Reexamination Certificate
active
06996016
ABSTRACT:
A method and a circuit configuration for implementing a double data rate feature in a memory device capable of operating in a variable latency mode. The memory device may utilize a WAIT_DQS signal that combines functionality of a WAIT signal indicating when valid data is present on a data bus in Read cycle and the memory is ready to accept data in Write cycle, and a data strobe (DQS) signal.
REFERENCES:
patent: 6466496 (2002-10-01), Kuge
patent: 6504789 (2003-01-01), Hirakawa
patent: 6603706 (2003-08-01), Nystuen et al.
patent: 6681301 (2004-01-01), Mehta et al.
patent: 2004/0022095 (2004-02-01), Lee
patent: 2004/0047227 (2004-03-01), Jakobs
patent: 0 344 886 (1989-12-01), None
PCT International Search Report and Written Opinion dated Jun. 8, 2005.
General DDR SDRAM Functionality,Micron Technical Note TN 46-05, Micron Technology, Inc., Jul. 2001, pp. 1-11.
KDM432D2131—64 Mbit DDR SGRAM, 512K×32Bit×4 Banks, Double Data Rate Synchronous Graphic RAM with Bi-directional Data Strobe,Samsung Electronics Target Specification, Revision 0.3, May 1999, pp. 1-49.
C. H. Kim et al.,A 64-Mbit, 640-MByte/s Bidirectional Data Strobed, Double-Data-Rate SDRAM with a 40-mW DLL for a 256-Mbyte Memory System,IEEE Journal of Solid-State Circuits, vol. 33, No. 11, pp. 1703-1709, Nov. 1998.
Infineon - Technologies AG
Nguyen Van-Thu
Patterson & Sheridan L.L.P.
LandOfFree
Echo clock on memory system having wait information does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Echo clock on memory system having wait information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Echo clock on memory system having wait information will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3685407