Telecommunications – Transmitter – With feedback of modulated output signal
Reexamination Certificate
2005-09-20
2005-09-20
Trinh, Sonny (Department: 2687)
Telecommunications
Transmitter
With feedback of modulated output signal
C455S114300, C455S522000
Reexamination Certificate
active
06947713
ABSTRACT:
An amplitude- and frequency- or phase-modulated radio frequency signal generator that is used for radio emission, generates a phase or frequency control signal and an amplitude control signal from a phase or frequency modulation signal and from an amplitude modulation signal respectively. The generator comprises a phase or frequency modulator and a variable-gain radio frequency power amplifier. The amplitude of the output signal is automatically controlled. In addition, adaptive pre-distortion is carried out in order to pre-distort the phase or frequency control signal in accordance with the amplitude modulation signal during a permanent operating phase. During a learning phase, a pre-distortion module is adapted from the amplitude modulation signal and from the amplitude control signal.
REFERENCES:
patent: 5105445 (1992-04-01), Karam et al.
patent: 5430416 (1995-07-01), Black et al.
patent: 5978662 (1999-11-01), Swales
patent: 6070086 (2000-05-01), Dobrica
patent: 6112062 (2000-08-01), Hans et al.
patent: 6163708 (2000-12-01), Groe
patent: 6295442 (2001-09-01), Camp et al.
patent: 6633751 (2003-10-01), Damgaard et al.
patent: 6801784 (2004-10-01), Rozenblit et al.
patent: 2002/0191710 (2002-12-01), Jeckeln et al.
patent: 2004/0162039 (2004-08-01), Marque-Pucheu
patent: 2005/0017801 (2005-01-01), Bachman et al.
patent: 2 807 252 (2001-10-01), None
Mann S et al: “Increasing Talk-Time With Efficient Linear PA's” IEE Seminar ontetra market and technology developments, IEE, London GB, (Feb. 10, 2000), pp. 6-1-6-7 p. 5, line 16-line 34 fig. 6.
Petrovic V et al: “The Design of VHF SSb Polar-Loop Transmitters” Conference on communications equipment and systems. Apr. 20-22, 1982, London, I.E.E., GB. vol. No. 209 Apr. 1982, p. 148.
International Search Report PCT/FR02/01483 dated Aug. 13, 2002.
Checoury Xavier
Gagey Olivier
EADS Telecom
McCracken & Frank LLP
Trinh Sonny
LandOfFree
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