Apparatus and method for correcting error in data read from reco

Details Apparatus and method for correcting error in data read from reco Apparatus and method for correcting error in data read from reco

1994-11-30

1996-12-17

Baker, Stephen M.

Excavating

G11B 2018

Patent

active

055861270

ABSTRACT:
Disclosed is an apparatus for correcting error data contained in data read from an optical disk. The data correcting apparatus has a memory for storing data read out from the optical disk. The apparatus also has a syndrome generator for generating error syndrome data, and a circuit for detecting the position and value of data errors. The data correcting apparatus further includes a circuit for correcting errors in the read data stored in the memory, based on the error position and error value. The syndrome generator transfers a first ID data field for data identification together with the syndrome data via a first direct bus, provided between the syndrome generator and the detecting circuit. The detecting circuit transfers a second ID data field for data identification together with error information data via a second direct bus, provided between the detecting circuit and the data correcting circuit.

REFERENCES:
patent: 4649541 (1987-03-01), Lahmeyer
patent: 4747103 (1988-05-01), Iwamura et al.
patent: 4841300 (1989-06-01), Yoshida et al.
patent: 4897840 (1990-01-01), Weiss et al.
patent: 5384786 (1995-01-01), Dudley et al.

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