Resources Contact Us Home
Positioning satellite system for measuring position of signal source

Image Number 4 for United States Patent #6680696.

A satellite system includes a signal source located on a surface of the earth, a surface of water, or in air; an orbiting satellite for measuring a position of the signal source, having a GPS receiver which receives a GPS signal from a GPS satellite system to measure the position of the orbiting satellite, a frequency measuring device for receiving the radio wave signal emitted from the signal source to measure the frequency thereof, a memory for storing frequency data and position data, and a transmitting device for transmitting the data stored in the memory toward the earth; and a ground station, having a signal receiving device for receiving the data transmitted from the orbiting satellite, including a computer for calculating the position of the signal source based on the data received by the signal receiving device.

  Recently Added Patents
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
Method for forming contact hole
Automatic population of feature capabilities on a communication device
Lubricant composition and antioxident composition
Display system, display control method and computer program
Stacked thin-film superlattice thermoelectric devices
Systems and methods for dissipating an electric charge while insulating a structure
  Randomly Featured Patents
Sanitary napkin
Feature of an air treatment device
Shallow depth, low pressure gas storage facilities and related methods of use
Control system and apparatus for use with ultra-fast laser
Automatic fetching and storage of requested primary and related documents or files at receiving web stations after repeated failures to access such documents or files from the World Wide Web
Oscillating air blowers for drying vehicles
Process to fabricate a source-drain extension
Contact structure formed over a groove
Method for preparing 3,3-dimethylbutyraldehyde
Tobacco expansion process using 1,1,1,2-tetrafluoroethane