US PATENT SUBCLASS 714 / 6
.~.~.~.~ Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)

Current as of: June, 1999
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714 /   HD   ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY

1  DF  RELIABILITY AND AVAILABILITY {4}
2  DF  .~ Fault recovery {4}
3  DF  .~.~ By masking or reconfiguration {4}
5  DF  .~.~.~ Of memory or peripheral subsystem {3}
6.~.~.~.~ Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data) {1}
7  DF  .~.~.~.~.~> Reconfiguration (e.g., adding a replacement storage component)

DEFINITION

Classification: 714/6

Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data):

(under subclass 5) Subject matter further including means or steps for recovery by accessing redundant stored data.

(1) Note. This and indented subclasses rely on information which is a function of the actual data of concern as exemplified in one simple form by parity data. The species of fault recovery or avoidance concerned with storing archival verbatim copies of data is classified elsewhere. See SEE OR SEARCH CLASS notes below.

(2) Note. Parity and error-correction coded storage of general utility in a system without data processing features claimed are classified elsewhere in this class. See SEE OR SEARCH THIS CLASS, SUBCLASS notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

763+, for memory access block coding.

805, for storage accessing error/fault detection techniques.

SEE OR SEARCH CLASS

711, Electrical Computers and Digital Processing Systems: Memory, 161+, for preventing the corruption, loss, alteration, or disclosure of data by storing, as in making backup copies.