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:
Jul. 09, 2024
Filed:
Sep. 14, 2022
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Assignee:
Ciena Corporation, Hanover, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/081 (2006.01); H03L 7/099 (2006.01); H03L 7/197 (2006.01); H04L 7/00 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0814 (2013.01); H03L 7/0994 (2013.01); H03L 7/1976 (2013.01); H04L 7/0037 (2013.01); H04L 7/033 (2013.01);
Abstract
Circuits, controllers, and techniques are provided for reducing non-linearities in a phase rotator. A card include first transmit (Tx) component configured to connect to a second receive (Rx) component in a second card; a first Rx component configured to connect to a second Tx component in the second card; a single Phase-Locked Loop (PLL) circuit connected to both the first Tx component and the first Rx component; and a control circuit configured to compensate for differences between i) the first Tx component and the second Rx component, and ii) the first Rx component and the second Tx component.