US PATENT SUBCLASS 235 / 437
.~ Error checking
Current as of: June, 1999
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DEFINITION
Classification: 235/437
Error checking:
(under subclass 435) Subject matter including apparatus to sense the coded indicia on a record and determine if it is being accurately interpreted.
SEE OR SEARCH CLASS
73, Measuring and Testing,
157, for means to test record strip sprocket holes.
714, Error Detection/Correction and Fault Detection/Recovery,
1+, for reliability and availability, fault recovery, locating, and avoidance in digital data processing systems, subclasses 799+ for error/fault detection techniques; and subclass 818 for missing-bit/drop-out detection
