Auto detection of copper and fiber mode

Details Auto detection of copper and fiber mode Auto detection of copper and fiber mode

2007-10-16

2007-10-16

Pham, Chi (Department: 2616)

Multiplex communications

Diagnostic testing

Path check

Reexamination Certificate

active

10230160

ABSTRACT:
Methods and systems for operating a physical layer device (“PHY”) in an Ethernet network include methods and systems for detecting active link partners and for selecting a mode of operation based on detected active link partners. The PHY monitors fiber link media and copper link media for active link partners. The PHY selects a mode of operation according to detected active link partners. For example, a copper mode of operation is selected, preferably through logic circuitry, when an active copper link partner is detected and an active fiber link partner is not detected. Similarly, a fiber mode of operation is selected, preferably through logic circuitry, when an active fiber link partner is detected and an active copper link partner is not detected. The PHY interfaces with the active copper link partner when the copper mode of operation is selected. Similarly, the PHY interfaces with the active fiber link partner when the fiber mode of operation is selected. The copper or fiber mode of operation can be prioritized for when active copper and fiber link partners are detected. The prioritized mode can be user selectable or factory set. The invention optionally powers down circuitry associated with an unselected mode of operation.

REFERENCES:
patent: 4862452 (1989-08-01), Milton et al.
patent: 5095308 (1992-03-01), Hewitt
patent: 5577023 (1996-11-01), Marum et al.
patent: 5768301 (1998-06-01), Dreyer et al.
patent: 5790946 (1998-08-01), Rotzoll
patent: 5907553 (1999-05-01), Kelly et al.
patent: 6026494 (2000-02-01), Foster
patent: 6065073 (2000-05-01), Booth
patent: 6215764 (2001-04-01), Wey et al.
patent: 6393050 (2002-05-01), Liu
patent: 6418558 (2002-07-01), Roberts et al.
patent: 6442142 (2002-08-01), Bar-Niv
patent: 6459393 (2002-10-01), Nordman
patent: 6487214 (2002-11-01), Bachar
patent: 6678728 (2004-01-01), Uppunda et al.
patent: 6691233 (2004-02-01), Gannage et al.
patent: 6697368 (2004-02-01), Chang et al.
patent: 6819760 (2004-11-01), Nayler
patent: 6894602 (2005-05-01), Browning
patent: 7020728 (2006-03-01), Jones et al.
patent: 7024489 (2006-04-01), Aviles
patent: 7027459 (2006-04-01), Fukui et al.
patent: 7054309 (2006-05-01), Hoot et al.
patent: 7119701 (2006-10-01), Browning
patent: 7127624 (2006-10-01), Berman et al.
patent: 7149397 (2006-12-01), Popovic et al.
patent: 2002/0019954 (2002-02-01), Tran
patent: 2002/0023234 (2002-02-01), Berman et al.
patent: 2003/0179709 (2003-09-01), Huff
patent: 2003/0179710 (2003-09-01), Huff
patent: 2003/0179771 (2003-09-01), Chan et al.
patent: 2003/0179816 (2003-09-01), Huff et al.
patent: 2003/0223469 (2003-12-01), Deng
patent: 2004/0017815 (2004-01-01), Huff
patent: 2005/0111531 (2005-05-01), Booth et al.
patent: 2005/0196119 (2005-09-01), Popovic et al.
patent: 2007/0022310 (2007-01-01), Berman et al.
patent: 0 573 204 (1993-12-01), None
patent: 0 856 975 (1998-08-01), None
patent: 0 856 975 (1998-08-01), None
patent: WO 00/59176 (2000-10-01), None
patent: WO 01/47159 (2001-06-01), None
patent: WO 03/081785 (2003-10-01), None
U.S. Appl. No. 10/230,158, filed Aug. 29, 2002, Huff.
U.S. Appl. No. 10/230,159, filed Aug. 29, 2002, Huff.
U.S. Appl. No. 10/231,066, filed Aug. 30, 2002, Huff et al.
U. S. Appl. No. 10/347,295, filed Jan. 21, 2003, Huff.
Final/Partial European Search Report for Appln. No. EP 03 00 6504, mailed Sep. 29, 2003, 2 pages.
Search Report for European App. No. EP 03006503, dated Sep. 29, 2003, 3 pgs.
Search Report for PCT Application No. PCT/US03/08684, filed Mar. 21, 2003, 7 pgs.
10 Gigabit Ethernet Technology Overview White Paper, Revision 1.0, 10GEA: 10 Gigabit Ethernet Alliance, pp. 1-21 (May 2001).
Design Considerations for Next Generation LAN and SAN Gigabit Ethernet Switches, Cicada Semiconductor and SwitchCore Corp., pp. 1-13 (Jun. 2001).
Search Report for European App. No. EP 03006505, dated Sep. 29, 2003, 3 pgs.
XP000502465: “Power Management Method for Portable Personal Computer with Modem”, vol. 38, No. 2, Feb. 1995.
www.wikipedia.com->CPLD.

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