US PATENT SUBCLASS 375 / 224
TESTING

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

224TESTING {4}
225  DF  .~> Data rate
226  DF  .~> Phase error or phase jitter
227  DF  .~> Signal noise
228  DF  .~> With indicator

DEFINITION

Classification: 375/224

TESTING:

(under the class definition) Subject matter in which at least part of the system is tested.

SEE OR SEARCH THIS CLASS, SUBCLASS:

231, for calibration of automatic equalizers.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing, for electrical testing or measuring in general.

370, Multiplex Communications,

241+, for diagnostic testing of a multiplexing system.

379, Telephonic Communications, 90.01+, testing of telephone systems, some of which may be digital.

455, Telecommunications,

67.1+, for modulated carrier system testing; subclasses 115+ for transmitter testing; and subclasses 226.1+ for receiver testing.

702, Data Processing: Measuring, Calibrating, or Testing,

79, for a time-related parameter (e.g., pulse width, period, delay, etc.) measurement.