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
Passive translational velocity measurement from optical information
Conductive polymer and a solid electrolytic capacitor using the same as a solid electrolyte
Opioid-ketamine and norketamine codrug combinations for pain management
Film, polarizing plate and display device, and method of manufacturing film
Methods and systems for time-shifting content
Lightweight multicast method and apparatus for data distribution service
Polyfunctional sulfur-containing epoxies and compositions thereof
  Randomly Featured Patents
Sensor element for limiting current sensors to determine the lambda value of gas mixtures
Tissue viability monitor
Container support apparatus
Multi media presentation system
Basketball shooting trainer
Fingernail polisher
Cross-platform presence
High intensity illumination light table
Gardening shear
Non-destructive procedure for the isolation of DNA from plants