Fully-buffered dual in-line memory module with fault correction
AssigneeMarvell World Trade Ltd.
InventorsSehat Sutardja, Saeed Azimi
Life of this patent
Estimating the term…
Abstract
A memory system comprises first memory that includes memory cells. Content addressable memory (CAM) includes CAM memory cells, stores addresses of selected ones of the memory cells, stores data having the addresses in corresponding ones of the CAM memory cells and retrieves data having the addresses from corresponding ones of the CAM memory cells. An adaptive refresh module stores data from selected ones of the memory cells in the CAM memory cells to one of increase and maintain a time period between refreshing of the memory cells.
Claims40
A memory system comprising:
- first memory that includes memory cells;
- content addressable memory (CAM) that includes CAM memory cells, that stores addresses of selected ones of said memory cells, that stores data having said addresses in corresponding ones of said CAM memory cells and that retrieves data having said addresses from corresponding ones of said CAM memory cells;
- and
- an adaptive refresh module that stores data from selected ones of said memory cells in said CAM memory cells to one of increase and maintain a time period between refreshing of said memory cells.
A method for operating a memory system comprising:
- providing a first memory that includes memory cells and content addressable memory (CAM) that includes CAM memory cells;
- storing addresses of selected ones of said memory cells in said CAM;
- storing data having said addresses in corresponding ones of said CAM memory cells;
- retrieving data having said addresses from corresponding ones of said CAM memory cells;
- and
- storing data from selected ones of said memory cells in said CAM memory cells to one of increase and maintain a time period between refreshing of said memory cells.
A memory system comprising:
- first storing means for storing data and that includes memory cells;
- content addressable storing means for providing second memory cells, for storing addresses of selected ones of said memory cells, for storing data having said addresses in corresponding ones of said second memory cells and for retrieving data having said addresses from corresponding ones of said second memory cells;
- and
- adaptive refresh means for storing data from selected ones of said memory cells in said second memory cells to one of increase and maintain a time period between refreshing of said memory cells.
Dependencies are inferred from the claim text.