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:
May. 19, 2009
Filed:
Mar. 31, 2004
Applicant:
Richard A. Johnson, Buda, TX (US);
Inventor:
Richard A. Johnson, Buda, TX (US);
Assignee:
Silicon Laboratories Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetically differential input circuit is arranged to define at least two loops, wherein each of the loops traverses the input of a receiving circuit. The loops are physically arranged so that a source of interference induces opposing signals in the loops, thereby effecting cancellation of the interference at the input of the receiving circuit. In one embodiment, the input circuit is arranged to be electrically differential as well as magnetically differential.