Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1978-11-01
1980-11-04
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343112TC, G01S 506
Patent
active
042323177
ABSTRACT:
An object location system wherein signals are transmitted or received via more than one transmit station and wherein the objects receive signals from the transmit stations or transmit signals for reception by the treatment stations within a data base region and wherein location coordinates are established in response to the signals received by the transmit stations or in response to the signals received at the object from the transmit stations at a predetermined number of geographic locations within the data base region by positioning the object receiver or transmitter at each of the predetermined geographic locations. The objects are located within the data base region by comparing location coordinates determined in response to signals received at the transmit stations or in response to signals received at the objects with the established location coordinates.
REFERENCES:
patent: 3209357 (1965-09-01), Wyatt
patent: 3886553 (1975-05-01), Bates
patent: 4112421 (1978-09-01), Freeny, Jr.
Berger Richard E.
Wilbur Maynard R.
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