Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating
Reexamination Certificate
2009-02-09
2010-11-16
Chan, Wing F (Department: 2441)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer data transfer regulating
C709S231000, C709S238000, C370S395430, C370S419000
Reexamination Certificate
active
07836199
ABSTRACT:
A system and method are provided for negotiating a link data rate in a communication system using a plurality of data rates. In a system including a first device network-connected to a second device, auto-negotiation (AN) messages are mutually transmitted. The AN messages indicate rate information such as preferred data rate capabilities, if the device has a dual-rate capability, single data rate capabilities, or is capable of communicating over a plurality of physical medium lanes. If the AN messages are mutually transmitted, a negotiated link data rate is established. However, if one of the devices cannot send AN messages, the other device times-out, and a link data rate is established at the data rate transmitted by the device that is not AN-capable.
REFERENCES:
patent: 2002/0130795 (2002-09-01), Moon
patent: 2002/0146043 (2002-10-01), McRobert et al.
patent: 2004/0208180 (2004-10-01), Light et al.
patent: 2005/0165959 (2005-07-01), Huff
patent: 2005/0196119 (2005-09-01), Popovic et al.
patent: 2009/0232151 (2009-09-01), Furlong et al.
Brown Matthew
Gao Yanming
Herod Marika
Applied Micro Circuits Corporation
Chan Wing F
Law Office of Gerald Maliszewski
Maliszewski Gerald
Miah Razu A
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