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:
Feb. 06, 2018
Filed:
Mar. 27, 2015
Lenovo Enterprise Solutions (Singapore) Pte. Ltd., New Tech Park, SG;
Rong Eric Ao, Morrisville, NC (US);
Alexander Philip Campbell, Morrisville, NC (US);
Donald Richard Dignam, Morrisville, NC (US);
Stephen John Flint, Morrisville, NC (US);
Jian Meng, Ottawa, CA;
Lenovo Enterprise Solutions (Singapore) PTE. LTD., New Tech Park, SG;
Abstract
A differential transmission line includes a positive conductor on which a positive complementary component of a differential signal is transmitted, and a negative conductor parallel to the positive conductor on which a negative complementary component of the differential signal is transmitted. A quarter wavelength differential coupler is inserted along a length of the positive and negative conductors. The quarter wavelength differential coupler has a length corresponding to a frequency of common mode noise on the positive and negative conductors. The quarter wavelength differential coupler reduces the common mode noise at the frequency as the differential signal passes through the quarter wavelength differential coupler.