Excavating
Patent
1982-06-16
1984-10-23
Atkinson, Charles E.
Excavating
365200, 371 2, 371 38, G06F 1110
Patent
active
044792140
ABSTRACT:
An online system is disclosed for mapping errors into an error map as data is transferred between a CPU and a relatively large fault tolerant semiconductor memory system without interfering with the normal use of the memory. The error mapping system permits a fault alignment exclusion mechanism to develop permute vectors which realign pair faults that were located at the same memory address. Having an up-to-date fault map which reflects the current error status of the memory when it is online and which reflects errors based on user data patterns greatly enhances the memory system and facilitates fault alignment exclusion efficiency.
REFERENCES:
patent: 3644902 (1972-02-01), Beausoleil
patent: 3659088 (1972-04-01), Boisvert
patent: 3897626 (1975-08-01), Beausoleil
patent: 4174537 (1979-11-01), Chu et al.
patent: 4291389 (1981-09-01), Toth
Beausoleil, Maintenance for Memory with Error Correction, IBM Technical Disclosure Bulletin, vol. 11, No. 12, May 1969, pp. 1692-1693.
Ryan, Fault Realignment Through Grouping of Compatible Faulty Memory Chips, IBM Technical Disclosure Bulletin, vol. 26, No. 6, Nov. 1983, pp. 2753-2754.
Singh et al., Word Line, Bit Line Address Interchange, etc., IBM Technical Disclosure Bulletin, vol. 26, No. 6, Nov. 1983, pp. 2747-2748.
Atkinson Charles E.
Cummins Richard E.
Haase Robert J.
International Business Machines - Corporation
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