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
Communication terminal device, communication system, and communication control method
Heterogeneous language data typing without executable regeneration
Method of sending CTI messages in a communication system
High power fiber amplifier with stable output
Bullet lens design for the dasal seeker
Method for enhanced subsurface electromagnetic sensitivity
Adaptive contact window wherein the probability that an answering user/expert will respond to a question corresponds to the answering users having response rates that are based on the time of
  Randomly Featured Patents
Liquid crystal display device having particular counter electrodes
Wideband microstrip leaky-wave antenna
Monocyte activation test better able to detect non-endotoxin pyrogenic contaminants in medical products
Invisible information recording medium and apparatus for reading information from the same
Chemical copper plating solution
Shiga toxin B chain polypeptides and vaccine thereto
Self-aligned, planar phase change memory elements and devices, systems employing the same and method of forming the same
System and method for monitoring spot-knocking of CRTs
Assembling device and tray system used therein, and design assisting device
Ankle fusion device, instrumentation and methods