Optical waveguides – Accessories
Reexamination Certificate
2006-12-12
2006-12-12
Font, Frank G. (Department: 2883)
Optical waveguides
Accessories
C370S366000, C709S224000
Reexamination Certificate
active
07149397
ABSTRACT:
An SFP module provides either a 1000Base-X or SGMII interface protocol to a host and provides a 1000Base-T media dependent interface (MDI). If the SFP module is coupled a host that only implements the 1000Base-X protocol then the SFP module translates the 1000Base-X protocol to the 1000Base-T protocol so that the host MAC sees the 1000Base-T SFP module as if it were an optical transceiver. If the host implements SGMII then the SFP performs auto-negotiation of speed and communicates with the host implement data transfer at a selected rate, e.g., 10, 100, or 1000 Mbps.
REFERENCES:
patent: 2004/0246953 (2004-12-01), Muth et al.
CISCO Systems, Inc., “Serial-GMII Specification”, 10 pages, retrieved from the Internet : <URL:ftp://ftp-eng.cisco.com/smii/smii.html>.
Marvell, “Marvell Extends Industry Leadership with the Broadest Portfolio of 0.13-Micron CMOS Gigabit Ethernet PHYs, Further Accelerating Gigabit to the Desktop”, 3 pages, retrieved from the Internet: <http://www.marvell.com/press/pressNewsDisplay.do?releaseID=68>.
“Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement (MSA)”, retrieved from the Internet: <http://www.schelto.com/SFP/SFP%20MSA.pdf>.
Desiniotis Chris
Erickson Bradley D.
Findlater Stewart
Patel Sandeep Arvind
Popovic Miodrag
Font Frank G.
Krueger Charles E.
Wong Eric
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