http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2202312-C

Outgoing Links

Predicate Object
assignee http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f481982f9992cbb527a6d31589832958
classificationCPCAdditional http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02D30-70
classificationCPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04M19-005
classificationIPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04Q3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M3-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M19-00
filingDate 1997-04-10^^<http://www.w3.org/2001/XMLSchema#date>
grantDate 2000-02-15^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0858817d6096b95ff6b3f4610c2ba8bd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_febd0d9a50ee614a4c2a764ddea8cfac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1e7cbfef0edfe6633cf09741f81a854
publicationDate 2000-02-15^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber CA-2202312-C
titleOfInvention Dual voltage, self-monitoring line circuit
abstract A line circuit provides BORSCHT functions and supplies the customer loop through a feed resistor network and current limiter either from a high voltage battery to provide for maximum signaling range or from a lower voltage battery to conserve power. The current limiter operates under the control of a microprocessor/DSP which selectively applies or denies power to isolate or include components for testing and controls the switching in and out of transistors to control the scaling factor between the channel width-to-length ratios of the current mirror's input and output FET transistors according to the type of test or operating condition dictated by the microprocessor while the input reference current to the current mirror is maintained constant.
priorityDate 1996-05-10^^<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/SID419559541
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