Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1997-01-21
1999-06-15
Oen, William
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
342353, H04B 7185
Patent
active
059126418
ABSTRACT:
A satellite repeater system (10) provides a connection from satellites (12) to user terminals (14) that are located within a building. The satellite cellular repeater system receives satellite signals on a satellite receive antenna (18) and retransmits the received signal within a building using amplifiers (30) and indoor antennas (32). The system also receives signals from a user terminal, amplifies the signals, and retransmits the user terminal signals with an outdoor satellite antenna (20) back to a satellite. For a multi-story building each floor may be provided with a local transmit antenna (32), transmit amplifier (30), receive antenna (34), and receive amplifier (36) for conducting bidirectional communications with satellite telephones or user terminals that are present on that floor. The satellite signal repeater system employs an outdoor satellite receive antenna structure that tracks non-geosynchronous orbiting satellites as they move with respect to the outdoor satellite receive antenna, and thus provides system selectivity so as to minimize interference from and into other communications systems that may operate in the same frequency band(s).
REFERENCES:
patent: 5233626 (1993-08-01), Ames
patent: 5422647 (1995-06-01), Hirshfield et al.
patent: 5448623 (1995-09-01), Wiedeman et al.
patent: 5504493 (1996-04-01), Hirshfield
patent: 5526404 (1996-06-01), Wiedeman et al.
patent: 5552798 (1996-09-01), Dietrich et al.
Product description: "Communications Extender (A.C.E.)", Microwave Product Digest, Jun. 1995, p. 38.
"Radiating Cable Enhances In-Building And Tunnel Coverage", Dennis J. Burt, Wireless Systems Design, Sep. 1996, (no month).
Globalstar L.P.
Oen William
LandOfFree
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