| US 7,516,226 B2 | ||
| Transmit adaptive equalization using ordered sets | ||
| Ali U. Ahmed, Macungie, Pa. (US); Robert D. Brink, Coopersburg, Pa. (US); Lane A. Smith, Easton, Pa. (US); and Robert Snively, Morgan Hill, Calif. (US) | ||
| Assigned to Agere Systems Inc., Allentown, Pa. (US); and Brocade Communications Systems, Inc., San Jose, Calif. (US) | ||
| Filed on Sep. 30, 2004, as Appl. No. 10/955,997. | ||
| Prior Publication US 2006/0067387 A1, Mar. 30, 2006 | ||
| Int. Cl. G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—228 [370/236; 375/229] | 21 Claims |
| 1. An apparatus for use in a communication system having a plurality of nodes, the apparatus comprising;
a first node, the first node comprising a transmitter configured for communication with a receiver of a second node and a
receiver configured for communication with a transmitter of the second node;
the first node being operative to receive from the second node information specifying an adjustment to one or more equalization
parameters of the first node;
the information being received in designated portions of one or more ordered sets transmitted from the second node to the
first node in conjunction with initialization of a communication link between the first and second nodes;
the first node being further operative to adjust the one or more equalization parameters in accordance with the received information;
wherein the one or more ordered sets comprise at least one training ordered set transmitted from the second node to the first
node during a speed negotiation process carried out between the first node and the second node in conjunction with initialization
of the communication link.
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