http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007518365-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-071 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J14-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J14-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B17-40 |
| filingDate | 2005-01-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2007-07-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007518365-A |
| titleOfInvention | Method and apparatus for monitoring a local optical submarine optical transmission device in operation using COTDR |
| abstract | Methods and apparatus are provided for obtaining status information regarding optical transmission paths. The method generates a COTDR survey signal having a defined wavelength, an optical traffic signal on an optical transmission path (306) having a length corresponding to that used in a local seabed demand application, and Begin by communicating the COTDR survey signal. The defined wavelength of the COTDR survey signal is separated from the wavelength at which the optical traffic signal is located at a distance at least equal to a predetermined guard frequency band. The backscattered and / or reflected portion of the COTDR survey signal in which state information about the optical path is embodied is received through the optical path. The backscattered and / or reflected portion of the COTDR survey signal is detected to obtain state information. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020100921-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11483068-B2 |
| priorityDate | 2004-01-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419577455 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID23980 |
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