Patent · US Active

Duty cycle distortion (DCD) sampling in a low-swing transmitter

US11894847B1 · kind B1 · utility

0Cited by

5References

19Claims

0Family size

Assignee

MELLANOX TECHNOLOGIES, LTD. · IL

Inventors

Igal Kushnir · Pardes Hana-Karkur, IL
Naor Peretz · Kiryat Ata, IL
Roi Levi · Kiryat Tivon, IL

Key dates

Filing date	Aug 10, 2022
Grant date	Feb 6, 2024
Priority date	—
Expiry date	Aug 10, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03878
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Technologies for jitter extraction are described. A receiver device includes an analog-to-digital converter (ADC) and a signal processing circuit. The signal processing circuit includes an equalizer block to output current data based on samples from the ADC. A clock-recovery (CR) block includes a timing error detector (TED) or a phase detector to measure a sampling offset. The CR block can use the sampling offset to control sampling of subsequent data by the ADC. A jitter extraction block can use the sampling offset to re-sample the current data to obtain re-sampled data based on the sampling offset to remove jitter from the current data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.