US5577004A
Expired / Lapsed
US
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Memory system and method
Assignee: EMC Corp
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Filing: 1995-12-01
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Granted: 1996-11-19
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Expires: 2015-12-01
Abstract
Abstract A memory system wherein a plurality of memory banks is provided, each having a plurality of addressable memory units. A driver is coupled to a set of address terminals of a corresponding one of the memory units in each one of the memory banks. Each bit of data is fed to a data terminal of a corresponding one of the memory units in each one of the memory banks. An error detection and correction (EDAC) unit is fed by the data passing to, or from, the memory system. With such an arrangement, a failure of any one of the drivers results in an error in only one bit of the data stored in the incorrectly addressed location, and such single bit error is corrected by the EDAC unit upon its retrieval from the memory system.
Inventors
- 👤 Eli Leshem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:21
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/1008; G06F11/1012; G06F11/1016
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
70 words
A memory system, comprising: a plurality of memory banks, each having a plurality of addressable memory units; a plurality of address drivers, each one of the drivers being coupled to a corresponding one of the memory units in each one of the memory banks; and, each bit of data being coupled to a data terminal of a corresponding one of the memory units in each one of the memory banks.
Claim 2
Dependent Claim
70 words
A memory system, comprising: a plurality of memory banks, each having a plurality of addressable memory units; a plurality of address drivers, each one of the drivers being coupled to a corresponding one of the memory units in each one of the memory banks; and, each bit of data being coupled to a data terminal of a corresponding one of the memory units in each one of the memory banks.
Claim 3
Dependent Claim
25 words
The memory system recited in claim 1 including an error detection and correction unit fed by the data passing to, or from, the memory system.
Claim 4
Dependent Claim
21 words
The memory system recited in claim 1 wherein each one of the memory banks is coupled to a different select line.
Claim 5
Dependent Claim
21 words
The memory system recited in claim 2 wherein each one of the memory banks is coupled to a different select line.
Claim 6
Dependent Claim
94 words
A memory system, comprising: a plurality of memory banks, each one thereof having a plurality of memories, each one of such memories having a set of address terminals and a data terminal; a plurality of drivers, each one being coupled to the set of address terminals of a corresponding one of the memories in each of the memory banks; and, a data bus having a plurality of bit lines, each one of the bit lines being coupled to a data terminal of a corresponding one of the memories in each of the memory banks.
Claim 7
Dependent Claim
94 words
A memory system, comprising: a plurality of memory banks, each one thereof having a plurality of memories, each one of such memories having a set of address terminals and a data terminal; a plurality of drivers, each one being coupled to the set of address terminals of a corresponding one of the memories in each of the memory banks; and, a data bus having a plurality of bit lines, each one of the bit lines being coupled to a data terminal of a corresponding one of the memories in each of the memory banks.
Claim 8
Dependent Claim
19 words
The memory system recited in claim 5 including an error detection and correction unit coupled to the data bus.
Claim 9
Dependent Claim
21 words
The memory system recited in claim 6 wherein each one of the memory banks is coupled to a different select line.
Claim 10
Dependent Claim
31 words
The memory system recited in claim 5 wherein each one of the memories one of the memory banks is coupled to a corresponding one of a plurality of address select lines.
Claim 11
Independent Claim
91 words
A method of operating a memory system, comprising: providing: a plurality of memory banks, each having a plurality of addressable memory units; a plurality of address drivers, each one of the drivers being coupled to a corresponding one of the memory units in each one of the memory banks; and, each bit of data being coupled to a data terminal of a corresponding one of the memory units in each one of the memory banks; and, providing error detection and correction on the data passing to, or from, the memory system.
Claim 12
Independent Claim
91 words
A method of operating a memory system, comprising: providing: a plurality of memory banks, each having a plurality of addressable memory units; a plurality of address drivers, each one of the drivers being coupled to a corresponding one of the memory units in each one of the memory banks; and, each bit of data being coupled to a data terminal of a corresponding one of the memory units in each one of the memory banks; and, providing error detection and correction on the data passing to, or from, the memory system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-19 | 2000-05-20 | 2000-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-19 | 2004-05-20 | 2004-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-19 | 2008-05-20 | 2008-11-19 | $7700.00 | Window Closed / Lapsed |