Location-sensing technologies based on satellite-based systems or infrared tracking are not new.

The park will focus on developing new computer equipment that will transform the country's air-traffic control program into a satellite-based system.

Is there a satellite-based system on the shelf that the Federal Aviation Administration could adapt without having to reinvent the wheel?

In addition, the Pentagon rushed hand-held, satellite-based navigational systems to commanders in the field.

By contrast, the satellite-based systems under design in Europe and Japan would make the current generation of television sets obsolete.

In the last seven years, it has bought two international telephone businesses and a satellite-based domestic system.

The buses are equipped with satellite-based global positioning systems that automatically determine the next stop, and announce it to passengers ahead of time.

His early work at JPL was on system design of large satellite-based systems for nationwide cellular phone coverage.

It recently bought Outerlink, a company that provides satellite-based systems for locating and communicating with helicopters and other vehicles like trucks.

More important, perhaps, are the new satellite-based systems for tracking allied forces.