Electrical computers and digital processing systems: memory – Address formation – Address mapping
Patent
1997-07-29
1999-02-16
Chan, Eddie P.
Electrical computers and digital processing systems: memory
Address formation
Address mapping
711 5, 711202, 711207, 711115, 711220, G06F 1202
Patent
active
058731261
ABSTRACT:
Memory system for internally rearranging fields in database records. The memory is separated into modules, each module separately addressable. Each memory module is addressed by selectively modifying a supplied address, for example by the output from exclusive-OR gates, having inputs from the address supplied to the memory system and another inputs from address modification registers. The address modification registers are selectively set by the external utilization device to permit reading different rows in the memory modules. The data output columns from the memory modules can be rearranged using selector devices such as demultiplexors. Data can be masked by precluding certain selector control signals.
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Anderson Floyd E.
Chan Eddie P.
International Business Machines - Corporation
Nguyen Than V.
Sullivan Robert M.
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