Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Estimating altitude of a communications device










Image Number 2 for United States Patent #7019693.

The altitude of a communications device, which communicates with a communications system via at least one antenna, is estimated. The altitude estimation is based at least on altitude information of said at least one antenna. The altitude estimate of the communications device may be based on a two-dimensional location estimate for the communications device and on information representing three-dimensional location of said at least one antenna of said communication system. The two-dimensional location estimate and the altitude estimate may be sent to the communications device as location assistance information.








 
 
  Recently Added Patents
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
System for determining movement properties of a guided vehicle
Copolymer for positive type lithography, polymerization initiator used in production of said copolymer, and composition for semiconductor lithography
Nanoparticles in a flash memory using chaperonin proteins
Method and apparatus for re-routing calls in a packet network during failures
Dynamic learning method and adaptive normal behavior profile (NBP) architecture for providing fast protection of enterprise applications
Method and system for evaluating/analyzing patent portfolio using patent priority approach
  Randomly Featured Patents
Method and apparatus for imaging the cervix and uterine wall
Spindle device with state monitoring, and monitoring method and monitoring system therefore
Distribution of packets to multiple addresses
Fuel supply system for multi-cylinder engine
Pigment dispersion composition, color resist composition including the same, and color filter using the same
Control device
Tablet stand
Searchlight reversing mechanism
Method of selecting a grid model for correcting a process recipe for grid deformations in a lithographic apparatus and lithographic assembly using the same
Clip-on glasses