http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004105338-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6fd620f8dbb98a5bd639471af2d67221 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9010ae9d83ee0f510e7c19fc9afe89fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7d62cde6533f4f2e508b70730a2112d7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03G3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03G3-3089 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W52-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-368 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03G3-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-005 |
| filingDate | 2004-03-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbea55a76c69f72f804f89bdd6536ebe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_721a1cf9a3da0e8afff6c9b3e3876d4d |
| publicationDate | 2004-12-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2004105338-A1 |
| titleOfInvention | Automatic power control circuitry for a qam transmitter unit of a wireless communication device |
| abstract | The present invention generally relates to the field of coherent modulators which are deployed in wireless communication devices, in particular to three different types of a power control circuitry (201E) and a method for controlling the output power (Pout) of a modulated RF signal (x(t)) to be transmitted at the output port of a power amplifier (205) integrated in the QAM transmitter (200a/b/c) of a wireless communication device, which guarantees power stability over time and temperature variations. Thereby, said output power (Pout) is controlled by attenuating (S0) the power level (Pc) of an oscillator singal generated by a frequency synthesizing unit used (202) in the modulator stage (204E) of the QAM transmitter (200b). the actual power level (Pout) of the RF output signal (x(t) is fed back (S2) to a first input port of a comparator stages (212) in the feedback chain of the automatic power control loop (201E), and compared (S3) with a reference signal (V ref) repressenting the nominal power level (P ref) for the desired output power level (P out) of the RF signal fed to a second input port of the comparator stage (212) |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101050928-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114499704-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114499704-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110231516-A |
| priorityDate | 2003-05-23^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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