http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1278637-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ba058f0e5301a4d72a6fcfc30c2df30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G08G5-04 |
| filingDate | 1969-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1278637-A |
| titleOfInvention | Synchronized vortac/tacan cas system |
| abstract | 1278637 Radionavigation SIERRA RESEARCH CORP 15 Aug 1969 [20 Aug 1968] 40944/69 Heading H4D In a co-operative co-altitude aircraft collision avoidance system (CAS) as in Specification 1,278,636 the VOR/DME, TACAN or VORTAC ground stations A, B, C, D are synchronized directly by a master clock 3 to transmit CAS sync signals which may or may not be synchronized with the rotating aerial pattern of the corresponding ground station. At an airborne station the distance R of said station from a ground station D as determined by a DME unit 5 is converted to digital form by an A/D converter 14 and applied through a gate unit 16 to set the slot counter 18 to a number corresponding to the one-way propagation time for the distance R, the gate unit 16 being enabled by a CAS sync signal received from the ground station D so that the next local sync signal produced by the counter 18 occurs when the next CAS sync signal is transmitted from the ground station D; the counter 18 is then in absolute synchronism with the master clock 3. |
| priorityDate | 1968-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.