| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2fb8efa277b88a39948a0bfb308eca4e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-25073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04J14-0221 |
| classificationIPCInventive |
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/H04B10-18 |
| filingDate |
1992-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71c381c61d78c7166626d6670d4e9f90 |
| publicationDate |
1993-05-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0543314-A2 |
| titleOfInvention |
Optical signal equalizer for wavelength division multiplexed optical fiber systems |
| abstract |
This invention disclosure describes the application of a polarization insensitive acoustically-tuned optical filter (250) used in a multichannel WDM system to equalize variations in the power level of the WDM channels. The invention also describes a simple means for providing a low frequency control system which enables the equalizer to determine the signal levels of N optical carriers prior to equalizing the signals. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6451349-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9806192-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0195527-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19621566-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0734129-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0838913-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6268945-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5812710-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0838913-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2756994-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6035081-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9844512-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2310094-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0923818-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2310094-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19538753-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5870217-A |
| priorityDate |
1991-11-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |