US 12,355,596 B2
Adaptive channel equalization for a duo-binary transceiver
Bupesh Pandita, Cary, NC (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Mar. 24, 2023, as Appl. No. 18/189,864.
Prior Publication US 2024/0333563 A1, Oct. 3, 2024
Int. Cl. H04L 25/06 (2006.01); H04B 1/38 (2015.01)
CPC H04L 25/062 (2013.01) [H04B 1/38 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for adapting a channel between a first duo-binary transceiver and a second duo-binary transceiver, different from the first duo-binary transceiver, the method comprising:
at a receiver associated with the second duo-binary transceiver, selectively processing information at a given time from only an upper eye or a lower eye of a received duo-binary signal to determine updated coefficients for a feed-forward equalizer (FFE) of a transmitter associated with the first duo-binary transceiver; and
using a backchannel between the transmitter associated with the first duo-binary transceiver and the receiver associated with the second duo-binary transceiver, sending the updated coefficients to the transmitter associated with the first duo-binary transceiver.