US PATENT SUBCLASS 714 / FOR 120
.~ Test pattern with comparison (371/20.4)

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

FOR 117  DF  TRANSMISSION FACILITY TESTING (371/20.1) {4}
FOR 120.~ Test pattern with comparison (371/20.4) {1}
FOR 121  DF  .~.~> Loop-back (371/20.5)

DEFINITION

Classification: 714/FOR.120

Test pattern with comparison:

Foreign art collections including subject matter in which the transmission facility is tested by applying a test pattern to the device under test and comparing the output to a reference test pattern.