The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 1989
Filed:
Jan. 27, 1988
Applicant:
Inventor:
William R Verbanets, Plum Borough, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
364484 ; 364483 ; 364492 ; 324 / ;
Abstract
In polyphase systems with a set of waveforms, such as a three-phase power system, each waveform is Fourier analyzed for a frequency component: A single sample/hold circuit samples each waveform sequentially, and the sampling time difference is compensated by adjusting the sampled values to a common time-point, using vector rectangular coordinate sine/cosine processing.