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:
Aug. 13, 1991
Filed:
Oct. 12, 1989
Applicant:
Inventors:
Hartmut Jasberg, Ottobrunn, DE;
Ulrich Lachmann, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03K / ;
U.S. Cl.
CPC ...
307520 ; 328167 ;
Abstract
A filter circuit suitable for integration has first and second voltage/current converters. A signal source is coupled to the first voltage/current converter. A capacitor is coupled to the second voltage/current converter. An amplifier is coupled to the capacitor and has an output forming a filter output. The voltage/current converters have outputs fed to the capacitor in phase opposition to one another.