WDM layer-based optical chanel protecting device and method...

Details WDM layer-based optical chanel protecting device and method... WDM layer-based optical chanel protecting device and method...

2011-01-25

2011-01-25

Tran, Dzung D (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S019000, C398S045000

Reexamination Certificate

active

07877008

ABSTRACT:
The present invention discloses a WDM layer-based OChP device and the method thereof, i.e., M protection channels are added in the transmitting module and the receiving module to connect to receiving ends and transmitting ends of M protection channels in the WDM system; a switching device is added so as to switch signals in specified working channels to specified protection channels or switch signals transmitted in specified protection channels back to specified working channels according to switching requests from the WDM system; wherein M and N are natural numbers, and M<N. Because the number M of protection channels is less than the number N of the working channels, compared with 1+1 or 1:1 protection solution, this solution helps to save optical wavelength resource and initial cost. In addition, compared with 1+1 or 1:1 protection solution, when M>1, this solution can significantly reduce the risk of ruined backup performance due to above failures, without requiring increased cost.

REFERENCES:
patent: 5717796 (1998-02-01), Clendening
patent: 5982517 (1999-11-01), Fishman
patent: 6046832 (2000-04-01), Fishman
patent: 6292281 (2001-09-01), Bala et al.
patent: 6516110 (2003-02-01), Hayashi et al.
patent: 6915075 (2005-07-01), Oberg et al.
patent: 6975811 (2005-12-01), Kakizaki et al.
patent: 6983108 (2006-01-01), Sugawara et al.
patent: 7099578 (2006-08-01), Gerstel
patent: 7233738 (2007-06-01), Kerfoot, III
patent: 7546034 (2009-06-01), Mueller
patent: 2003/0161629 (2003-08-01), Frascolla et al.
patent: 2002100345 (2002-05-01), None
patent: 2 389 721 (2001-05-01), None
patent: 0 877 502 (1998-11-01), None
patent: 1054524 (2000-05-01), None
patent: 1 017 242 (2000-07-01), None
patent: 1 054 524 (2000-11-01), None
patent: 1 161 014 (2001-12-01), None
patent: 1 206 060 (2002-05-01), None
patent: 11-136187 (1995-05-01), None
patent: 10-210008 (1998-08-01), None
patent: H10-210008 (1998-08-01), None
patent: H11-068656 (1999-03-01), None
patent: H11-136187 (1999-05-01), None
patent: H11-355210 (1999-12-01), None
patent: 2000-151514 (2000-05-01), None
patent: 2000-332655 (2000-11-01), None
patent: 2000-332655 (2000-11-01), None
patent: 2002-141867 (2002-05-01), None
patent: 01/45312 (2001-06-01), None
patent: 01/58203 (2001-09-01), None
Lei et al. “M:N protection scheme and OADM implementation in WDM Optical Transport Networks” by Aug. 11, 2000.
Lei et al., “M:N Protection Scheme and OADM Implementation in WDM Optical Transport Networks,” Proceedings of the SPIE, SPIE, Bellingham, VA, U.S., vol. 4225, Nov. 8, 2000, pp. 6-10, XP001039950.
Foreign Communication From a Related Counterpart Application—Notice of Rejection, JP Application No. 2004-516419, Mailing date Aug. 4, 2009.

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