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:
Mar. 27, 2012
Filed:
Oct. 27, 2009
Applicant:
Christopher P. Wyland, Livermore, CA (US);
Inventor:
Christopher P. Wyland, Livermore, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 7/08 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
Vias for differential signals are typically of a lower impedance than the signal lines connected to them. The noise and reflected signals resulting in impedance mismatch may require circuits to be operated at a frequency far lower than desired. One or more embodiments of the present invention avoid impedance mismatch in circuits and achieve an advance in the art by providing a via with higher impedance through the addition of split ring resonators (SSRs) to each end of the via.