Method and apparatus for calculating an error detecting code blo

Details Method and apparatus for calculating an error detecting code blo Method and apparatus for calculating an error detecting code blo

1995-12-29

1998-11-17

Chung, Phung M.

Excavating

371 48, 371 492, G06F 1134

Patent

active

058388923

ABSTRACT:
A disk drive controller includes a memory for storing a plurality of blocks each having a predetermined size, and a parity engine. The parity engine includes a data buffer RAM for storing a block having the predetermined size. A function circuit has a first input terminal coupled to the disk drive controller memory, a second input terminal coupled to the output of the data buffer RAM, and an output terminal coupled to the input of the data buffer RAM. A command circuit, conditions the function circuit and the data buffer RAM to operate in a first operating mode to retrieve a block from the disk drive controller memory and store it in the data buffer RAM, and in a second operating mode to calculate the exclusive-OR (XOR) of a block from the disk drive controller memory with a block from the data buffer RAM and store the result in the data buffer RAM.

REFERENCES:
patent: 4761785 (1988-08-01), Clark et al.
patent: 4942579 (1990-07-01), Goodlander et al.
patent: 4949303 (1990-08-01), Hoshino et al.
patent: 5206943 (1993-04-01), Callison et al.
patent: 5233618 (1993-08-01), Glider et al.
patent: 5257391 (1993-10-01), Dulac et al.
patent: 5274799 (1993-12-01), Brant et al.
patent: 5283791 (1994-02-01), Halford
patent: 5313585 (1994-05-01), Jeffries et al.
patent: 5341381 (1994-08-01), Fuller
patent: 5398253 (1995-03-01), Gordon
patent: 5418925 (1995-05-01), Demoss et al.
patent: 5440716 (1995-08-01), Shultz et al.

Affiliated with

Also associated with

Rating

Method and apparatus for calculating an error detecting code blo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for calculating an error detecting code blo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for calculating an error detecting code blo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-894057