Digital cross-connect

Multiplex communications – Pathfinding or routing – Through a circuit switch

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S463000

Reexamination Certificate

active

07349387

ABSTRACT:
Two or more cross-connect ICs are interconnected. Each IC directly receives some, but not all, of the system inputs, and outputs to some, but not all, outputs. Each cross-connect IC has a switch matrix that has the same number of inputs as the system, and a lesser number of outputs that matches the number of outputs of the IC. Each cross-connect IC provides fanout of its direct inputs to a link to each other cross-connect IC. Thus, each IC receives inputs either directly, or from a fanout on another IC.

REFERENCES:
patent: 3735049 (1973-05-01), Buchner et al.
patent: 3736381 (1973-05-01), Johnson et al.
patent: 3925621 (1975-12-01), Collins et al.
patent: 3927267 (1975-12-01), Voyer et al.
patent: 3956593 (1976-05-01), Collins et al.
patent: 4005272 (1977-01-01), Collins et al.
patent: 4038497 (1977-07-01), Collins et al.
patent: 4797589 (1989-01-01), Collins
patent: 4817083 (1989-03-01), Richards
patent: 4855999 (1989-08-01), Chao
patent: 4967405 (1990-10-01), Upp et al.
patent: 5040170 (1991-08-01), Upp et al.
patent: 5130975 (1992-07-01), Akata
patent: 5923653 (1999-07-01), Denton
patent: 5945922 (1999-08-01), Gao et al.
patent: 6169737 (2001-01-01), Lindberg et al.
patent: 6215773 (2001-04-01), Karlsson
patent: 6240063 (2001-05-01), Suzuki
patent: 6584121 (2003-06-01), Garg et al.
patent: 6628609 (2003-09-01), Chapman et al.
patent: 6870838 (2005-03-01), Dally
patent: 6944190 (2005-09-01), Tomar et al.
patent: 7058010 (2006-06-01), Chidambaran et al.
patent: 7173930 (2007-02-01), Wellbaum et al.
patent: 2001/0053160 (2001-12-01), Dally
patent: 2002/0146003 (2002-10-01), Kam et al.
patent: WO 96/08902 (1996-03-01), None
Hwang, F. K., and Liaw, S.-C., “On Nonblocking Multicast Three-Stage Clos Networks,”IEEE/ACM Transactions on Networking, 8(4): 535-539 (2000).
Bene{hacek over (s)}, V.E., “Rearrangeable Networks.” InMathematical Theory of Connecting Networks and Telephonic Traffic, pp. 82-135.
Clos, C., “A Study of Non-Blocking Switching Networks,”The Bell System Technical Journal, 406-424 (1953).
Hui, J., “Multi-Point and Generalized Circuit Switching.” InSwitching and Traffic Theory for Integrated Broadband Networks, pp. 85-107.
“3.2 Gbps Cross Point Switches with Integrated Clock and Data Recovery,”VC3003&VC3002, Velio Communications, Inc., pp. 1-2 (May 21, 2001).
“72×72, 2.5Gb/s (STS-48/STS-48c/STM-16) with OC-192 Support SONET/SDH Grooming Switch,”VC2002, Velio Communications, Inc., pp. 1-2 (Mar. 15, 2001).
“SONET Telecommunications Standard Primer.” Tektronix, pp. 1-34 [as found on www.tektronix.com] (2001).
“SDH Telecommunications Standard Primer.” Tektronix, pp. 1-38 [as found on www.tektronix.com] (2001).
Sezaki, K., et al, “The Cascade Clos Broadcast Switching Network-A New ATM Switching Network Which is Multiconnection Non-Blocking”,Proceedings of the International Switching Symposium(ISS 1990); vol. 4, May 28, 1990-Jun. 1, 1990, pp. 143-147, XP000130910.
Ghaffar, A., et al., “Middle Stage Requirements and Blocking Probability Validation for Three Stage Broadcasting Clos Networks”,International Conference on Communications(ICC 1996); vol. 2, Jun. 23-27, 1996, pp. 1050-1054, XP 000625932.
To, P., et al., “Generalized Non-blocking Copy Networks”, InternationalConference on Communications(ICC 1997), Jun. 8-12, 1997, pp. 467-471, XP010227061.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digital cross-connect does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital cross-connect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital cross-connect will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2795406

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.