Symbol Multiplexing Physical Medium Attachment (PMA) Patent Application
Summary
USPTO published patent application US20260100870A1 assigned to Cisco Technology, Inc. The application covers symbol multiplexing methods for Physical Medium Attachment (PMA) technology, involving lane processing including alignment marker detection, de-skewing, and symbol-wise multiplexing of data lanes.
What changed
USPTO published Cisco Technology, Inc.'s patent application for symbol multiplexing Physical Medium Attachment methods. The application describes receiving multiple data lanes, using alignment markers to determine symbol boundaries, de-skewing lane groups, undoing checkerboard patterns, and multiplexing the lanes to second lanes for transmission.
For networking equipment manufacturers and technology companies, this patent represents Cisco's continued investment in physical layer transmission technology. While patent applications do not create immediate compliance obligations, companies developing similar PMA or lane multiplexing technologies should monitor the application through to grant and conduct freedom-to-operate analyses.
What to do next
- Monitor for patent grant status
- Review patent claims for infringement analysis
Archived snapshot
Apr 14, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
SYMBOL MULTIPLEXING PHYSICAL MEDIUM ATTACHMENT (PMA)
Application US20260100870A1 Kind: A1 Apr 09, 2026
Assignee
Cisco Technology, Inc.
Inventors
Adee Ran, Mark A. Gustlin, Aviran Kadosh
Abstract
Symbol multiplexing Physical Medium Attachment (PMA) may be provided. A plurality of first lanes may be received and then Alignment Markers (AMs) from the plurality of first lanes may be used to determine symbol boundaries and identify the plurality of first lanes. Next, groups of the plurality of first lanes may be de-skewed and checkerboard patterns in the plurality of first lanes may be undone. Then the plurality of first lanes may be symbol-wise multiplexed to a plurality of second lanes. The plurality of second lanes may then be sent.
CPC Classifications
H04L 25/14 H04L 25/0272
Filing Date
2025-10-07
Application No.
19352009
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Source
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