Radio frequency device for receiving TV signals and GPS satellite signals and performing positioning
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 12, 2005
Grant Date -
Jul 31, 2003
app pub date -
Nov 13, 2002
filing date -
Nov 13, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for determining the position of a user terminal comprise an antenna subsystem which is able to receive signals of GPS and TV, a receiver front end which converts the frequency of the incident signals and filters out unwanted signals so that the desired signals can be sampled, a digital processing component which accommodates the imperfections of the front end and converts the measured signals into a position information. The apparatus is capable of receiving at the user terminal, broadcast television signals from television signal transmitters; determining a first set of pseudo-ranges between the user terminal and the television signal transmitters based on a known component of the broadcast television signals; receiving at the user terminal global positioning signals from a global positioning satellites; determining a second set of pseudo-ranges between the user terminal and the global positioning satellites based on the global positioning signals; and determining a position of the user terminal based on the first and second sets of pseudo-ranges, locations of the television signal transmitters, and locations of the global positioning satellites.
First Claim
Other Claims data not available
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