Communications systems

Details Communications systems Communications systems

2006-07-04

2006-07-04

Bayard, Emmanuel (Department: 2634)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S278000

Reexamination Certificate

active

07072420

ABSTRACT:
The invention relates to a method of adjusting a radio frequency signal produced by radio frequency circuitry in response to receipt of phase and amplitude control signals from digital baseband circuitry which operates to convert digital data signals into such phase and amplitude control signals. The phase and amplitude control signals are adjusted in the digital baseband circuitry in order to compensate for time alignment errors which occur in the radio frequency circuitry.

REFERENCES:
patent: 5148448 (1992-09-01), Karam et al.
patent: 5598436 (1997-01-01), Brajal et al.
patent: 5644268 (1997-07-01), Hang
patent: 5672974 (1997-09-01), Turner
patent: 5748678 (1998-05-01), Valentine et al.
patent: 5903611 (1999-05-01), Schnabl et al.
patent: 5909471 (1999-06-01), Yun
patent: 6014570 (2000-01-01), Wong et al.
patent: 6081698 (2000-06-01), Moriyama et al.
patent: 6091941 (2000-07-01), Moriyama et al.
patent: 6246286 (2001-06-01), Persson
patent: 6288610 (2001-09-01), Miyashita
patent: 6614854 (2003-09-01), Chow et al.
patent: 6647073 (2003-11-01), Tapio
patent: 6771708 (2004-08-01), Suga et al.
patent: 2002/0131523 (2002-09-01), Nagasaka et al.
patent: 0 377 519 (1990-07-01), None
patent: 0 907 276 (1999-04-01), None
patent: 1089428 (2001-04-01), None
patent: WO97/30521 (1997-08-01), None
patent: WO99/19990 (1999-04-01), None
patent: WO00/31881 (2000-06-01), None
patent: WO 00/72438 (2000-11-01), None
D.C. Cox: “Linear Amplification with Nonlinear Components”, IEEE Transactions on Communications, vol. 22, No. 12, pp. 1942-1945, Dec. 1974.
A. Bateman: “The Combined Analogue Locked Loop Universal Modulator (CALLUM)”, proceedings of the 42ndIEEE Vehicular Technical Conference, May 1992, pp. 769-763.

Affiliated with

Also associated with

Rating

Communications systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communications systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3583239