Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Satellite communication system having double-layered earth orbit satellite constellation with two different altitudes










Image Number 13 for United States Patent #5722042.

A satellite communication system has a double-layered earth orbit satellite constellation with a lower first orbit altitude and a higher second orbit altitude. In the satellite communication system, first and second communication satellites are deployed in respective earth orbits located at the first and second orbit altitudes to each have first and second satellite communication stations, respectively. Small terminals and large terminals are further provided as earth stations on the earth. Each first satellite communication station communicates with the small terminals and communicates with the first satellite communication stations of adjacent first communication satellites within the same earth orbit and the second satellite communication stations, and each second satellite communication station communicates with the large terminals and communicates with the second satellite communication stations of adjacent communication satellites within the same earth orbit, the second satellite communication stations of the second communication satellites of both adjacent earth orbits, and the first satellite communication stations.








 
 
  Recently Added Patents
Image forming apparatus and job request control method instructed by authenticated users
Use of cocoa extract
Image enhancement based on multiple frames and motion estimation
Inhibitors of human immunodeficiency virus replication
Semiconductor memory device, method of controlling read preamble signal thereof, and data transmission method
Pattern forming method using printing device and method of manufacturing liquid crystal display device using the same
Methods and apparatus for determining a phase error in signals
  Randomly Featured Patents
Methods and apparatus for high performance structures
Adjustable shower-enclosure support apparatus
Embedded runout correction based on written-in runout measurement
Electrostrictive effect element and method of producing the same
Hybrid seal with both static and dynamic seal rings
Piston with support member and bearing
Methyl-quinoline derivatives as mefloquin intermediates and process for preparation thereof
Nucleic acid molecules encoding thymidine kinase fusion proteins
High power semiconductor package
Gas discharge display tube with barrier means for prevention of ion scattering