IIIIIIIH
US006229818B1
(12) United States Patent ao) Patent No.: us 6,229,818 Bi
Bell (45) Date of Patent: May 8,2001
(54) ACTIVE ISOLATION SYSTEM AND
METHOD FOR ALLOWING LOCAL AND
REMOTE DATA TRANSFERS ACROSS A
COMMON DATA LINK
(75) Inventor: Russell W. Bell, Austin, TX (US)
(73) Assignee: Advanced Micro Devices, Inc., Austin, TX (US)
( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 08/888,651
(22) Filed: Jul. 7, 1997
(51) Int. C I. IKI4J 3/16
(52) U.S. CI 370/466; 370/465
(58) Field of Search 370/465, 466,
370/467, 468, 449, 485, 486, 487; 375/354;
379/93
(56) References Cited
U.S. PATENT DOCUMENTS
5,479,447 12/1995 Chow et al 375/260
5,557,612 * 9/1996 Bingham 370/449
5,594,789 * 1/1997 Seazholtz 379/207
5,625,651 * 4/1997 Cioffi 370/506
5,668,857 * 9/1997 McHale 379/93.07
5,756,280 * 5/1998 Soora 455/4.2
5,764,750 * 6/1998 Chau 370/467
5,828,666 * 10/1998 Focsaneanu 370/389
FOREIGN PATENT DOCUMENTS
0 696 124 A2 2/1996 (EP) . WO 96/29808 9/1996 (WO) .
OTHER PUBLICATIONS
SOHO Skyway, Author Unknown, Mar. 26, 1997, pp. 1-2 (Obtained from the Internet at http://www.sohoskyway.net/ CustEq.html).
ADSL Forum: General Introduction to Copper Access Technologies, Author Unknown, May 13, 1997, pp. 1-6 (Obtained from the Internet at http://www.adsl.com/general tutorial.html).
DI Networking Press Releases: DI Networking Offers Superfast Internet Access Solution, Issued by Bernard Binns, May 13,1997, pp. 1-2 (Obtained from the Internet at http://206.48.77.57/press_ll.html).
New DSL Technologies Enable High-Speed Delivery Across "Last Mile", Cisco Systems, Inc., Mar. 17, 1997, pp. 1-4 (Obtained from the Internet at http://www.-europe.cisco.com/warp/pub lic/797/3.html).
Alcatel 1000 ADSL Asymmetric Subscriber Line: Ready for the Superhighway?, Published by Alcatel, Undated, pp. 1-8. Advanced Micro Devices Patent Application entitled: "Multipoint Access Protocol Utilizing A Point-To-Point Methodology", Date filed: Mar. 19, 1997, Ser. No.: 08/820,526. Advanced Micro Devices Patent Application entitled: "Network Adapter Utilizing an Ethernet Protocol and Utilizing a Digital Subscriber Line Physical Layer Driver for Improved Performance", Inventor: Russell W. Bell, Date filed: Nov. 8, 1996, Ser. No.: 08/744,438.
Maxwell, K., "Asymmetric Digital Subscriber Line: Interim
Technology for the Next Forty Years", IEEE Communica-
tions Magazine, 34(10): 100-106 (Oct. 1, 1996).
Carbone, P., "Internet Thruway: A Profitable New Route for
Data Traffic", Telesis, No. 102, 11 pages (Dec. 1996).
* cited by examiner
Primary Examiner—Douglas Olms
Assistant Examiner—Ricardo M. Pizarro
(74) Attorney, Agent, or Firm—-Williams, Morgan &
Amerson, PC.
