Method for controlling redundancy and transmission device...

Multiplex communications – Fault recovery – Bypass an inoperative channel

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S221000, C370S222000, C370S223000, C370S226000, C370S227000, C370S228000, C370S242000, C370S246000, C340S002900, C340S003430, C340S003440, C714S003000, C714S004100, C714S004110, C714S004120, C379S004000

Reexamination Certificate

active

08000232

ABSTRACT:
A redundancy control method is disclosed that controls a first redundancy function that switches between a working line and a protection line in response to a detection of a line error and a second redundancy function that performs a path switching in response to a detection of a path error in a ring network operating at a path rate lower than a line rate thereof. The method comprises a step of masking the path error detection within a period from a time of the detection of the line error to an expected time of the detection of the path error.

REFERENCES:
patent: 6785225 (2004-08-01), Sugawara et al.
patent: 6920603 (2005-07-01), Kimoto
patent: 7054265 (2006-05-01), Sugawara et al.
patent: 7518985 (2009-04-01), Sugawara et al.
patent: 2003/0233579 (2003-12-01), Kimura et al.
patent: 2000-349861 (2000-12-01), None
patent: 2004-23480 (2004-01-01), None
patent: WO-02/056513 (2002-07-01), None
Corrigent Systems, Adding RPR and MPLS to Existing SONET using Virtual Concatenation and GFP, Nov. 23, 2003, Corrigent Systems.
Ramfelt et al., RPR Protection Switching, Mar. 2001, Dynarc.
Busi et al., Proposed Draft Standard for Resilient Packet Ring Access Method & Physical Layer Specifications—Draft 0.1, Jan. 2002, IEEE.
Japanese Notice of Reason(s) for Rejection, Partial English-language Translation, mailed Mar. 8, 2011 for corresponding Japanese Application No. 2005-285421.
Japanese Office Action, Partial English-language translation, mailed Oct. 19, 2010 for corresponding Japanese Application No. 2005-285421.

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

Method for controlling redundancy and transmission device... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for controlling redundancy and transmission device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling redundancy and transmission device... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2746658

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