US PATENT SUBCLASS 324 / 76.78
.~.~ Quadrature sensing

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

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
76.77  DF  .~ Phase comparison (e.g., between cyclic pulse voltage and sinusoidal current, etc.) {11}
76.78.~.~ Quadrature sensing

DEFINITION

Classification: 324/76.78

Quadrature sensing:

(under subclass 76.77) Subject matter comprising means to

detect the state or condition of two related periodic functions or two related points separated by a quarter of a cycle, or 90 electrical degrees.