US PATENT SUBCLASS 73 / 861.03
.~.~.~ Digital


Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
861.01  DF  .~ With indirect temperature or density compensation {1}
861.02  DF  .~.~ Electrical {1}
861.03.~.~.~ Digital


DEFINITION

Classification: 73/861.03

Digital:

(under subclass 861.02) Subject matter wherein the output of each transducer is an electrical signal or is converted to an electrical signal before being combined, and wherein at least one of the signals being combined contains a characteristic which is recurrent (e.g., a pulse or waveform) over a period of time, and the information in the signal is contained in the number of recurrences of the characteristic during the period of time.