US PATENT SUBCLASS 324 / 76.19
.~.~ Frequency spectrum analyzer

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

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
76.12  DF  .~ Analysis of complex waves {3}
76.19.~.~ Frequency spectrum analyzer {7}
76.21  DF  .~.~.~> By Fourier analysis
76.22  DF  .~.~.~> Real-time spectrum analyzer
76.23  DF  .~.~.~> With mixer
76.24  DF  .~.~.~> With sampler
76.25  DF  .~.~.~> With slope detector
76.26  DF  .~.~.~> Scanning-panoramic receiver {1}
77.11  DF  .~.~.~> Nonscanning {5}

DEFINITION

Classification: 324/76.19

Frequency spectrum analyzer:

(under subclass 76.12) Subject matter including means that show an energy distribution as a function of frequency for a given signal.

SEE OR SEARCH CLASS

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

76+, for frequency spectrum analysis.