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. 16, 2024
Filed:
Nov. 16, 2022
Applicant:
Analog Devices, Inc., Wilmington, MA (US);
Inventor:
Charles Razzell, Pleasanton, CA (US);
Assignee:
Analog Devices, Inc., Wilmington, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/01 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04L 27/01 (2013.01); H04L 25/028 (2013.01);
Abstract
Simple, low-cost systems and methods allow to shape the output spectrum of pre-equalized Tomlinson Harashima Precoding (THP)-equalized transmitters in a manner such as to create a relatively narrow DC null to facilitate transmission over DC-null channels in AC-coupled communication channels. Advantageously, this may be accomplished without significantly adding to the peak value of the to-be-transmitted signal and without the need to resort to high-order filters in the signal path or the use of recursive taps to compensate such filters.