Dr. Hartmann graduated from the Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1977. He works in Ann Arbor, MI and specializes in Emergency Medicine and Family Medicine. Dr. Hartmann is affiliated with University Of Michigan Hospitals & Health Center.
Us Patents
Apparatus And Method For Determining The Magnitude And Phase Of The Fundamental Component Of A Complex Waveshape
Jacob H. Malka - Fair Lawn NJ Joseph P. Hartmann - Ridgewood NJ
Assignee:
Allied-Signal Corporation - Morris Township, Morris County NJ
International Classification:
G01R 2500
US Classification:
324 83R
Abstract:
Apparatus and method for extracting the fundamental component of a complex waveshape (E. sub. T) and for determining the magnitude (V) and phase. theta. of the fundamental component are disclosed. The complex waveshape is converted into digital data relative to a reference signal (E. sub. R) and the in-phase (x. sub. 1) and quadrature (y. sub. 1) components of the fundamental component are determined by a graphical Fourier analysis of the digital data so that the magnitude and phase of the fundmental component relative to the reference signal (E. sub. R) can be determined.