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
Nanofibers containing latent reactive groups
Methods for testing OData services
Detection of code-based malware
System and method for optimizing use of plug-in air conditioners and portable heaters
Method and system of channel detecting and reporting, terminal, and management center
Method, system and computer program product for managing funds in custodial deposit accounts
Segmentation of a product markup image based on color and color differences
  Randomly Featured Patents
Gaming machines with bonusing
Magnetoresistive head having perpendicularly offset anisotropy films and a hard disk drive using the same
Electric socket contact for insertion into a socket housing
Process for improving the adhesion of polymeric materials to metal surfaces
Core sample extracting tool
Rotary pump with vane support divided into two half shells
Low pressure mercury vapor discharge lamp and preparation thereof
METHOD FOR MANUFACTURING HIGH-PURITY POTASSIUM FLUORONIOBATE CRYSTAL, RECRYSTALLIZATION BATH USED IN MANUFACTURING METHOD THEREOF AND HIGH-PURITY POTASSIUM FLUOROTANTALATE CRYSTAL OR HIGH-PURI
Photocatalytic filter with fiber glass mat carrier
Cylinder for hydraulically operated clutches and brakes and hydraulically operated clutch assemblies for motor vehicles