Shift register-based XOR accumulator engine for generating parit

Details Shift register-based XOR accumulator engine for generating parit Shift register-based XOR accumulator engine for generating parit

1997-03-31

1999-04-20

Chung, Phung M.

Excavating

371 491, G06F 1110

Patent

active

058964061

ABSTRACT:
An excIusive OR (XOR) accumulator engine efficiently generates parity from a group of data blocks temporarily stored in a memory of a data processing system. The XOR engine comprises an XOR logic circuit coupled to a multi-stage shift register for accumulating parity calculations generated by the logic circuit. Accumulation of parity within the shift register continues until all of the data blocks within the group have been processed by the logic circuit; thereafter, the data blocks and their generated parity are stored on multiple disks of the data processing system.

REFERENCES:
patent: 4669084 (1987-05-01), Hartman et al.
patent: 5335235 (1994-08-01), Arnott

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