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.

Date of Patent:
Sep. 08, 2026

Filed:

Jul. 03, 2024
Applicant:

Marvell Asia Pte Ltd, Singapore, SG;

Inventors:

Liming Bai, Shanghai, CN;

Zhendong Guo, San Jose, CA (US);

Yongxu Wang, Shanghai, CN;

Guoping Cui, Newark, CA (US);

Assignee:

MARVELL ASIA PTE LTD, Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/40 (2015.01); H02M 1/12 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H04B 1/40 (2013.01); H02M 1/123 (2021.05); H03F 3/45479 (2013.01); H03F 3/45488 (2013.01);
Abstract

A SERDES includes a transmitter configured to output a differential signal that is subject to common-mode noise, where the differential signal includes a digital signal and an inverted digital signal. The detector circuitry is configured to derive an amplified and biased common-mode signal from the differential signal, and the transmitter is further configured to tune the digital signal responsively to feedback based on the amplified and biased common-mode signal to reduce electromagnetic interference of the common-mode noise. Such a SERDES may include feedback circuitry which configured to receive the amplified and biased common-mode signal and to convert the amplified and biased common-mode signal into a feedback signal, and the transmitter may be further configured to receive the feedback signal for tuning the digital signal based on the feedback signal.


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