| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_71e7b69b0e56a4fc928125206fff5be4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B2001-0441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B2001-0433 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F1-3294
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F1-3247
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F1-3223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F1-34 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03F1-32 |
| filingDate |
1997-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f60cf74dd2d8d0fdfae4d03bc535150b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c290a77c7104c6224e6252188a47632a |
| publicationDate |
1998-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2326297-A |
| titleOfInvention |
Feedback or feedforward noise reduction circuit for double frequency conversion cartesian feedback amplifier |
| abstract |
A Cartesian Loop radio frequency transmitter has its I and Q channel processing circuitry implemented in an ASIC, which produces a forward path output signal in a first radio frequency band. At least one further stage of frequency up-conversion of the signal in the first band occurs prior to radio frequency power amplification with corresponding additional down-conversion in the feed-back path. Use of a feed-forward bandstop filter, or a feedback loop containing a bandpass filter in an amplifier forward path is disclosed for the purpose of suppressing out-of-band noise in the transmitted signal. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1505738-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1505738-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1362429-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1362429-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2156552-A4 |
| priorityDate |
1997-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |