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:
Jul. 23, 2013
Filed:
Feb. 25, 2011
Applicants:
Frank Gruson, Lindau, DE;
Paul Schnebli, Ravensburg-Oberzell, DE;
Inventors:
Frank Gruson, Lindau, DE;
Paul Schnebli, Ravensburg-Oberzell, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/00 (2006.01); G01R 23/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device and a method for frequency analysis. The frequency of an output signal is divided, and an auxiliary signal with a known frequency is subtracted from the low-frequency signal to define a low-frequency differential signal. The output frequency is determined on the basis of the frequency of the low-frequency differential signal.