http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2465491-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d73a463810e31533b61dc940d913b11 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-23 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S19-23 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S19-30 |
| filingDate | 2009-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e043b0a8ac7a2873bf085c4cea9bef9 |
| publicationDate | 2010-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2465491-A |
| titleOfInvention | GPS receiver |
| abstract | The application is concerned with aligning or synchronising the internal clock of a GPS receiver with incoming signals. It assumes that the position is known to within 30 km (so relative timing is known to better than a millisecond). First it aligns with the 1024-bit 1-ms Gold codes. The next stage, which is what the invention is concerned with, is to align with the 20-ms data bits, which it does by creating a power measurement based on the incoming signal with a time offset of 0, 1, ... 19 ms, and does this for each satellite. Each should be maximised when there is alignment - if the approximate receiver position is taken into account, then all these will be maximised for the same time offset. So the powers are all added together for each offset, and the maximum of the sum indicates the offset sought. Fast acquisition is possible if the reliability required is reduced (Pfa (probability of false alarm) < 0.01 rather than 0.0001). |
| priorityDate | 2008-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.