Static information storage and retrieval – Read/write circuit – Data refresh
Reexamination Certificate
2007-01-16
2007-01-16
Elms, Richard (Department: 2824)
Static information storage and retrieval
Read/write circuit
Data refresh
C365S230080, C365S233100
Reexamination Certificate
active
11169241
ABSTRACT:
Method and apparatus for use with multi-bank Synchronous Dynamic Random Access Memory (SDRAM) circuits, modules, and memory systems are disclosed. In one described embodiment, an SDRAM circuit receives a bank address to be used in an auto-refresh operation, and performs the auto-refresh operation on the specified bank and for a current refresh row. The device is allowed to enter a self-refresh mode before auto-refresh operations have been completed for all banks and the current refresh row. The memory device completes refresh operations for the current refresh row before proceeding to perform self-refresh operations for new rows. Other embodiments are described and claimed.
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patent: 6928019 (2005-08-01), Lee
Lee Jung-Bae
Lee Yun-Sang
Park Taek-Seon
Elms Richard
Marger & Johnson & McCollom, P.C.
Nguyen Hien
Samsung Electronics Co,. Ltd.
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