Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1997-03-03
1998-10-20
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455 121, 455127, 4552351, 363 26, 330129, 330279, H04B 7185
Patent
active
058261702
ABSTRACT:
Disclosed is a method for operating a communications signal transmitter and apparatus for carrying out the method. The method includes the steps of receiving a communications signal; sensing an amount of user demand; adjusting an output of a power supply that supplies operating power to a communications signal transmitter amplifier in accordance with the sensed demand so as to increase the output of the power supply when the sensed demand increases and to decrease the output of the power supply when the sensed demand decreases; and amplifying the received communications signal with the communications signal transmitter amplifier. The step of adjusting includes the steps of setting the duty cycle of a pulse width modulated signal as a function of at least the sensed signal strength; driving a switch with the pulse width modulated signal to chop a primary DC source into an AC signal; and synchronously rectifying the AC signal with an inverse of the pulse width modulated signal to provide a DC output from the power supply for supplying the operating power to the communications signal transmitter amplifier.
REFERENCES:
patent: Re32905 (1989-04-01), Baran
patent: 3028488 (1962-04-01), Hudspeth et al.
patent: 3095538 (1963-06-01), Silberstein
patent: 3735235 (1973-05-01), Hamilton et al.
patent: 3928804 (1975-12-01), Schmidt et al.
patent: 4090199 (1978-05-01), Archer
patent: 4187506 (1980-02-01), Dickinson
patent: 4380089 (1983-04-01), Weir
patent: 4599619 (1986-07-01), Keigler et al.
patent: 4612546 (1986-09-01), Rosen
patent: 4630058 (1986-12-01), Brown
patent: 4731869 (1988-03-01), Farrer
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5010317 (1991-04-01), Schwendeman et al.
patent: 5073900 (1991-12-01), Mallinckrodt
patent: 5081703 (1992-01-01), Lee
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5119042 (1992-06-01), Crampton et al.
patent: 5119225 (1992-06-01), Grant et al.
patent: 5212823 (1993-05-01), Fujii et al.
patent: 5216427 (1993-06-01), Yan et al.
patent: 5233626 (1993-08-01), Ames
patent: 5239671 (1993-08-01), Linquist et al.
patent: 5283587 (1994-02-01), Hirshfield et al.
patent: 5285208 (1994-02-01), Bertiger et al.
patent: 5303286 (1994-04-01), Wiedeman
patent: 5339330 (1994-08-01), Mallinckrodt
patent: 5345598 (1994-09-01), Dent
patent: 5359280 (1994-10-01), Canter et al.
patent: 5410728 (1995-04-01), Bertiger et al.
patent: 5415368 (1995-05-01), Horstein et al.
patent: 5422647 (1995-06-01), Hirshfield et al.
patent: 5433726 (1995-07-01), Horstein et al.
patent: 5439190 (1995-08-01), Horstein et al.
patent: 5446756 (1995-08-01), Mallinckrodt
patent: 5488623 (1996-01-01), Wiedeman et al.
patent: 5504493 (1996-04-01), Hirshfield
Petition of American Mobile Satellite Corporation Before the FCC, Washington, DC 20554, dated Jun. 3, 1991, pp. 1-15.
Application of Motorola Satellite Communications, Inc. for IRIDIUM a Low Earth Orbit Mobile Satellite System before the FCC, Wasthington, D.C. Dec. 1990, pp. 49-96.
Before the FCC, Washington, D.C. 20554, Aries Constellation Low Earth Orbit Satellite System Proposal of Constellation Communications, Inc. Jun. 3, 1991, Appendix A, B, and C.
Application of TRW Inc. for Authority to Construct a New Communications Satellite System Odyssey before the FCC, Washington, D.C. 20554, May 31, 1991 pp. 31-51.
Patent Abstracts of Japan No.: JP5114878 Transmission Power Control System for Transponders, vol. 17, No. 476, Telegr & Teleph Corp.
pp. 1-187 of an Application of Loral Cellular Systems, Corp. to the FCC (Jun. 3, 1991).
pp. 1-17 of an Application of Ellipsat Corporation to the FCC (Nov. 2, 1990).
Canter Stanley
Hirschfield Edward
Wiedeman Robert A.
Eisenzopf Reinhard J.
Space Systems Loral, Inc.
To Doris
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