Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1994-01-04
1996-09-10
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
342457, G04S 510, H04D 7185
Patent
active
055549934
ABSTRACT:
A global position determining system conserves battery power in a battery powered user terminal by transmitting its approximate position initially and then inhibiting transmission of a homing beacon until a homing terminal is in the vicinity of the user terminal. After user activation, the user terminal determines its own approximate position and transmits an approximate position signal to a satellite. The satellite then relays the approximate position signal to a mobile homing terminal. After moving the mobile homing terminal toward the approximate position, an activate homing beacon command is transmitted to the user terminal. When the transmitted command is received, the homing beacon is activated. Upon activation of the homing beacon, a directional antenna of the mobile homing terminal can be oriented toward a first direction which has a strong homing beacon reception relative to other directions and moved towards that direction.
REFERENCES:
patent: 3063048 (1962-11-01), Lehan et al.
patent: 3440635 (1969-04-01), Hull
patent: 3876980 (1975-04-01), Haemmig et al.
patent: 4045799 (1977-08-01), Dapiran
patent: 4177466 (1979-12-01), Reagan
patent: 4240079 (1980-12-01), Zhilin
patent: 4596988 (1986-06-01), Wanka
patent: 4740792 (1988-04-01), Sagey et al.
patent: 4819053 (1989-04-01), Halavais
patent: 4908629 (1990-03-01), Apsell et al.
patent: 4965586 (1990-10-01), O'Neill et al.
patent: 5021794 (1991-06-01), Lawrence
patent: 5043736 (1991-08-01), Darnell et al.
patent: 5111209 (1992-05-01), Toriyama
patent: 5115223 (1992-05-01), Moody
patent: 5119102 (1992-06-01), Barnard
patent: 5202829 (1993-04-01), Geier
patent: 5223844 (1993-06-01), Mansell et al.
patent: 5252963 (1993-10-01), Snowden et al.
Panasonic Technologies Inc.
Phan Dao L.
Tarcza Thomas H.
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