Electrical computers and digital processing systems: multicomput – Network-to-computer interfacing
Reexamination Certificate
2008-09-09
2008-09-09
Follansbee, John (Department: 2151)
Electrical computers and digital processing systems: multicomput
Network-to-computer interfacing
C709S248000, C709S249000, C709S223000, C709S224000
Reexamination Certificate
active
09951774
ABSTRACT:
A passive video multiplexing method and apparatus for encoding video synchronization signals within a KVM extension system. A Rack Interface Pod (RIP) is provided for receiving video signals from a network server and providing them to a remote user via a local area network (LAN). The analog signals received by the RIP are transmitted to a Rack Connection Manager (RCM) having video processing logic, a supervisory processor, a KVM switch system, and Ethernet interface circuitry. A plurality of ARI systems are connected to the RCM, and a plurality of network servers, intended to be controlled by the remote user, are connected to each ARI by a respective wiring strip or Pod Expansion Module (PEM). The RCM performs selective switching by sourcing current through a pair of diodes associated with an active channel of the PEM while reverse biasing diodes associated with an inactive channel to select a network server among the plurality of network servers. Switching of video is accomplished without processing the video signals.
REFERENCES:
patent: 2667553 (1954-01-01), Moorhead et al.
patent: 2870287 (1959-01-01), Corbitt et al.
patent: 4103252 (1978-07-01), Bobick
patent: 4395610 (1983-07-01), Downs et al.
patent: 4919117 (1990-04-01), Muchisky et al.
patent: 4927787 (1990-05-01), Patel
patent: 4927987 (1990-05-01), Kirchgessner
patent: 5033813 (1991-07-01), Westfall
patent: 5188542 (1993-02-01), Ballman
patent: 5192226 (1993-03-01), Wang
patent: 5260532 (1993-11-01), Tinder et al.
patent: 5272525 (1993-12-01), Borchardt et al.
patent: 5353409 (1994-10-01), Asprey et al.
patent: 5535036 (1996-07-01), Grant
patent: 5573425 (1996-11-01), Morisawa et al.
patent: 5637013 (1997-06-01), Weber
patent: 5708897 (1998-01-01), Manabe et al.
patent: 5742718 (1998-04-01), Harman et al.
patent: 5744754 (1998-04-01), Strang et al.
patent: 5775939 (1998-07-01), Brown
patent: 5792986 (1998-08-01), Lee
patent: 5850209 (1998-12-01), Lemke et al.
patent: 5926509 (1999-07-01), Stewart et al.
patent: 5929386 (1999-07-01), Hornick
patent: 6112264 (2000-08-01), Beasley et al.
patent: 6137455 (2000-10-01), Duo
patent: 6150997 (2000-11-01), Asprey
patent: 6185643 (2001-02-01), Kirshtein et al.
patent: 6192433 (2001-02-01), Chan et al.
patent: 6256014 (2001-07-01), Thomas et al.
patent: 6329616 (2001-12-01), Lee
patent: 6343080 (2002-01-01), Kondo
patent: 6345323 (2002-02-01), Beasley et al.
patent: 6373476 (2002-04-01), Dalgleish et al.
patent: 6378014 (2002-04-01), Shirley
patent: 6388658 (2002-05-01), Ahern et al.
patent: 6449866 (2002-09-01), Murray
patent: 6482042 (2002-11-01), Tupper
patent: 6498890 (2002-12-01), Kimminau
patent: 6521836 (2003-02-01), Simonazzi
patent: 6557170 (2003-04-01), Wilder et al.
patent: 6580044 (2003-06-01), Ogawa et al.
patent: 6601124 (2003-07-01), Blair
patent: 6609034 (2003-08-01), Behrens et al.
patent: 6618774 (2003-09-01), Dickens et al.
patent: 6623295 (2003-09-01), DeLadurantaye, III
patent: 6633935 (2003-10-01), Chan et al.
patent: 6671756 (2003-12-01), Thomas et al.
patent: 6672896 (2004-01-01), Li
patent: 6748005 (2004-06-01), Riazi et al.
patent: 6983340 (2006-01-01), Hermanson et al.
patent: 2001/0034157 (2001-10-01), DeLadurantaye, III
patent: 2001/0044843 (2001-11-01), Bates et al.
patent: 2001/0053627 (2001-12-01), Armistead et al.
patent: 2002/0081907 (2002-06-01), Olson et al.
patent: 2002/0143996 (2002-10-01), Odryna et al.
patent: 2003/0123677 (2003-07-01), Tran
patent: 2003/0188049 (2003-10-01), Dickens
patent: 2004/0001323 (2004-01-01), Chen
patent: 2004/0044822 (2004-03-01), Chen
patent: 2004/0066790 (2004-04-01), Valavi et al.
patent: H10-91300 (1998-04-01), None
patent: 2000-115591 (2000-04-01), None
patent: WO 00/17766 (2000-03-01), None
patent: WO 01/84291 (2001-11-01), None
Kimara Andreas, “KVM Switch Solutions,” Mar. 1, 2001, Network Technologies Inc., pp. 1-38.
Office Action issued Apr. 25, 2007 in Japanese patent application No. 2002-578172.
Bernstein, Control Data Center Servers, Systems Management, pp. 99-101, Dell Copyright 2004 (Oct.).
Office Action mailed Apr. 18, 2007 in corresponding Japanese Patent Application No. 2003-524097, with translation (English).
Kirshtein Philip M.
Odyrna Vic
Thomas Christopher L.
Avocent Corporation
Davidson Berquist Jackson & Gowdey LLP
Follansbee John
Tran Nghi V
LandOfFree
Passive video multiplexing method and apparatus priority to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Passive video multiplexing method and apparatus priority to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive video multiplexing method and apparatus priority to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3919290