Trimming of a two point phase modulator

Details Trimming of a two point phase modulator Trimming of a two point phase modulator

2006-05-30

2006-05-30

Shingleton, Michael B (Department: 2817)

Modulators

Frequency modulator

Including stabilization or alternatively distortion, noise...

C455S260000, C331S00100A, C331S008000, C331S010000, C331S011000, C331S015000, C331S016000, C331S017000, C331S018000, C331S025000, C331S17700V, C331S03600C

Reexamination Certificate

active

07053727

ABSTRACT:
Method and system are disclosed for automated calibration of the VCO gain in phase modulators. The method and system of the invention comprises synthesizing, in a phase modulator, a signal having a given output frequency using a controlled oscillator having a frequency control input, a modulation input, and a feedback loop. A frequency control signal is applied to the frequency control input, and gain variation of the controlled oscillator is compensated for outside of the feedback loop via the modulation input. The method and system of the invention may be employed in any telecommunication system that uses phase and amplitude modulation, including EDGE and WCDMA systems.

REFERENCES:
patent: 4743867 (1988-05-01), Smith
patent: 5207491 (1993-05-01), Rottinghaus
patent: 5386314 (1995-01-01), Jopson
patent: 5483203 (1996-01-01), Rottinghaus
patent: 5834987 (1998-11-01), Dent
patent: 5952895 (1999-09-01), McCune, Jr. et al.
patent: 6229400 (2001-05-01), McCollough et al.
patent: 6353370 (2002-03-01), Cox et al.
patent: 6366146 (2002-04-01), Fredriksson
patent: 6441690 (2002-08-01), Savelli et al.
patent: 6621364 (2003-09-01), Grewing et al.
patent: 2003/0043950 (2003-03-01), Hansen et al.
patent: 2004/0124938 (2004-07-01), Nilsson
patent: 2004/0192231 (2004-09-01), Grewing et al.
patent: 2004/0192369 (2004-09-01), Nilsson
patent: 2005/0104669 (2005-05-01), Herzinger et al.
patent: 29 41 049 (1979-10-01), None
patent: 3447 118 (1986-07-01), None
patent: 0 408 238 (1991-01-01), None
patent: 0 961 412 (1999-12-01), None
patent: 1 063 766 (2000-12-01), None
patent: 1 079 514 (2001-02-01), None
patent: 1 223 670 (2002-07-01), None
patent: 2337 884 (1999-12-01), None
patent: WO 99/07066 (1999-02-01), None
patent: WO 99/43080 (1999-08-01), None
patent: WO-02/067428 (2002-08-01), None

Affiliated with

Also associated with

Rating

Trimming of a two point phase modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trimming of a two point phase modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trimming of a two point phase modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3548760