Transmitter having a phase control loop whose frequency...

Details Transmitter having a phase control loop whose frequency... Transmitter having a phase control loop whose frequency...

2006-08-01

2006-08-01

Urban, Edward F. (Department: 2685)

Telecommunications

Transmitter

Plural modulation

C455S126000, C455S127200, C455S553100, C375S300000, C375S302000

Reexamination Certificate

active

07085544

ABSTRACT:
A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.

REFERENCES:
patent: 4571549 (1986-02-01), Lods et al.
patent: 5091706 (1992-02-01), Lautzenhiser
patent: 5101506 (1992-03-01), Walls
patent: 5408197 (1995-04-01), Miyake
patent: 5430416 (1995-07-01), Black et al.
patent: 5790601 (1998-08-01), Corrigan et al.
patent: 5802450 (1998-09-01), Horton
patent: 5910753 (1999-06-01), Bogdan
patent: 6018275 (2000-01-01), Perrett et al.
patent: 6147553 (2000-11-01), Kolanek
patent: 6215362 (2001-04-01), Feng et al.
patent: 6476681 (2002-11-01), Kirkpatrick
patent: 6631254 (2003-10-01), Wilson et al.
patent: 6671337 (2003-12-01), Cordoba
patent: 2002/0071497 (2002-06-01), Bengtsson et al.
patent: 2002/0080716 (2002-06-01), Asam et al.
patent: 2002/0158621 (2002-10-01), Tao et al.
patent: 2004/0248528 (2004-12-01), Rozenbilt et al.
patent: 100 56 472 (2000-11-01), None
patent: 0 339 605 (1989-11-01), None
patent: 0 457 749 (1991-11-01), None
patent: 0 535 669 (1992-01-01), None
patent: 0 731 556 (1996-09-01), None
patent: 0 786 864 (1997-07-01), None
patent: 0 788 236 (1997-08-01), None
patent: 0 797 298 (1997-09-01), None
patent: 1 115 205 (2001-07-01), None
patent: 1211801 (2002-06-01), None
patent: 2 237 157 (1991-04-01), None
patent: 2291754 (1996-01-01), None
patent: 2 369 941 (2002-06-01), None
patent: 2369941 (2002-06-01), None
patent: 3-209994 (1991-09-01), None
patent: 4-372246 (1992-12-01), None
patent: 11-355139 (1999-12-01), None
patent: 2000-244341 (2000-09-01), None
patent: 756603 (1980-08-01), None
patent: 95/23453 (1995-08-01), None
patent: 01/41296 (2001-06-01), None
patent: 02/37666 (2002-05-01), None
P.B. Kenington, “High Linearity RF Amplifier Design”, published by Artech House, Inc., 1979, pp. 162.

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