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
Reception method and reception apparatus
Puncture resistant fabric
Digital broadcast receiver and method for processing caption thereof
Precoding codebooks for MIMO communication systems
Systems and methods for providing a shared folder via television
Delivery of captions, content advisory and other data through digital interface
Communication apparatus, integrated circuit, and communication method
  Randomly Featured Patents
Fuel cells
Verbena plant--`Sunmaref TP-P`
Ultrasonic measuring device
Technique for performing GSM/WCDMA circuit switched services over a long term evolution radio access
Diamond shaped carabiner
Optical information reproducing apparatus and optical information recording apparatus using holography
Container for the selective scavenging of citrus juice components
Plastic package with lead frame crossunder
Sanding tool
Image combining sextant or the like