US PATENT SUBCLASS 250 / 339.09
.~.~.~.~ With calibration steps in measurement process

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
338.1  DF  .~ Infrared responsive {12}
339.01  DF  .~.~ With selection of plural discrete wavelengths or bands {6}
339.06  DF  .~.~.~ With radiation source {5}
339.09.~.~.~.~ With calibration steps in measurement process

DEFINITION

Classification: 250/339.09

With calibration steps in measurement process:

(under subclass 339.06) Subject matter wherein the process of quantifying a property or attribute of a sample includes establishing a reference level or scale.

(1) Note. References are established by normalizing the

measurement of interest with a measurement from a reference wavelength or by measuring the response of the system under known conditions (e.g. first measuring fixed samples).

SEE OR SEARCH THIS CLASS, SUBCLASS:

252.1, for calibration or standardization methods.