US PATENT SUBCLASS 714 / 15
.~.~ State recovery (i.e., process or data file)

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}
15.~.~ State recovery (i.e., process or data file) {6}
16  DF  .~.~.~> Forward recovery (e.g., redoing committed action) {1}
18  DF  .~.~.~> Transmission data record (e.g., for retransmission)
19  DF  .~.~.~> Undo record
20  DF  .~.~.~> Plural recovery data sets containing set interrelation data (e.g., time values or log record numbers)
21  DF  .~.~.~> State validity check
22  DF  .~.~.~> With power supply status monitoring

DEFINITION

Classification: 714/15

State recovery (i.e., process or data file):

(under subclass 2) Subject matter further including means or steps for recovery by restoring data in a data file, or data for a process, to data at a previous point in time.

(1) Note. The species of fault recovery or avoidance concerned with storing verbatim copies of data is classified elsewhere. See the SEE OR SEARCH THIS CLASS, SUBCLASS notes below.

(2) Note. Parity and error-correction coded storage of general utility in a system without data processing features claimed is classified elsewhere.

(3) Note. This state recovery subclass provides for reliability and availability recovery under the condition of a fault. Data management, per se, is classified elsewhere. See the search class notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6+, for recovery by accessing redundant stored data.

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,

141+, for cache memory coherency, per se; subclasses 147+ for shared memory data processing which may employ data management principles; and subclasses 161+ for preventing the corruption, loss, alteration, or disclosure of data by storing, as in making backup copies.

712,

Electrical Computers and Digital Processing Systems-Processing Architecture or Instruction processing (e.g., processors), appropriate subclasses for source code management and software version management.