| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a16afc4055864a1fe1b604eb54152ad5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_827e8e1075ca4e83754cb41455bae676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_892e9f5b29debb84baccd79895da283b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-2647
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L2027-0016 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-0475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-364
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L25-061 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-30 |
| filingDate |
2011-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_246ff9640f717118a239db0271e5fb07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1c84822ee6d734c89129917c2daae16 |
| publicationDate |
2011-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2011089184-A1 |
| titleOfInvention |
Improved d.c. offset estimation |
| abstract |
A combination of a phase shifter, a measurement receiver, and an offset estimator enable the d.c. offset in the transmit path of a quadrature transmitter to be distinguished from the d.c. offset in the measurement receiver. The measurement receiver performs a first measurement on the transmit path output with a "normal" phase shift of 0 degrees and 90 degrees for in-phase (I) and quadrature (Q) components, and a second measurement with a "special" phase shift for the I and Q components. In one embodiment, the "special" phase shift for the I and Q components is 180 degrees and 270 degrees, respectively. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8976692-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012314602-A1 |
| priorityDate |
2010-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |