| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_72706c59aa36ea1d17991ff72dafaa2a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04M3-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04M3-303
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04Q3-60 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M3-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04Q3-60 |
| filingDate |
1988-08-10^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1989-10-31^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50aacb8bd5149a8b22fe178cac04d683
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_235eef389730ad5cba837605a4ec957c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2330e144276077d49a167c5987ad135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68a33659e07d14100978f41184c263e4 |
| publicationDate |
1989-10-31^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4878048-A |
| titleOfInvention |
Channel redundancy in a digital loop carrier system |
| abstract |
A channel redundancy system for use with a central office connected to a remote location. A central office terminal at the central office has a plurality of channel units including at least one spare channel unit. A remote terminal at the remote location also has a plurality of channel units including at least one spare channel unit. The channel units in the remote terminal are correspondingly associated with the channel units in the central office termimal. From a repair service bureau located remote from both the central office and the remote location in a defective channel unit can be identified and replaced by the spare channel unit. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9055550-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004081137-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10070466-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002027927-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7283532-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7280542-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5157665-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10349096-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9813641-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004081164-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9946941-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-625652-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4993014-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5347566-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7154884-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004081156-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6556660-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10140433-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004081167-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8045539-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004081157-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6868060-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7336662-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005220276-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9648644-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011116420-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10517140-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7050428-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9286294-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005128941-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5208803-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7142640-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9036626-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7940746-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6347075-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9049132-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5577096-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11252779-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5625866-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5018184-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7236495-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006081687-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5428661-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006056388-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5263081-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7394757-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006120360-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5798705-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5400321-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8724522-B2 |
| priorityDate |
1988-08-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |