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:
Dec. 28, 1999
Filed:
Mar. 04, 1998
Applicant:
Inventors:
Gunter Haefele, Erlangen, DE;
Manfred Schwendtner, Schwarzenbruck, DE;
Rainer Forthner, Schwarzenbruck, DE;
Klaus Windsheimer, Spalt, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324142 ; 324107 ;
Abstract
An electricity meter with differentiating input converters, in particular current converters, attains improved signal processing by providing a respective analog filter, in particular a low-pass filter, following each of the input converters. In this way, voltage peaks are limited for electronics downstream. Adulteration of measured signals caused by filters is compensated for by a digital filter in a downstream signal processing.