US PATENT SUBCLASS 324 / 614
.~.~.~ Signal to noise ratio or noise figure

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


324 /   HD   ELECTRICITY: MEASURING AND TESTING

600  DF  IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS {8}
612  DF  .~ Parameter related to the reproduction or fidelity of a signal affected by a circuit under test {4}
613  DF  .~.~ Noise {1}
614.~.~.~ Signal to noise ratio or noise figure

DEFINITION

Classification: 324/614

Signal to noise ratio or noise figure:

(under subclass 613) Subject matter including means to measure the ratio between a signal reference level and the level of unwanted noise.

(1) Note. Signal to noise ratio and noise figure are usually expressed in DB.

(2) Note. The parameter of interest expresses the amount by which a component, device, or network under test differs from an ideal component, device, or network having no noise.