Method and apparatus for peak limiting in a modulator

Details Method and apparatus for peak limiting in a modulator Method and apparatus for peak limiting in a modulator

1999-04-14

2000-11-14

Ton, Dang

Multiplex communications

Communication over free space

Combining or distributing information via frequency channels

370342, H04J 1300

Patent

active

061479845

ABSTRACT:
A modulator (102) generates a frequency-multiplexed composite signal (502) including a plurality of symbols. A processing system (108) of the modulator defines (802) a signal template (600) specifying symbol-type adjustment factors for corresponding symbol types, and then locates (804) in the composite signal a portion of the signal whose amplitude exceeds a predetermined threshold by an amplitude excess. The processing system records (806) the amplitude excess, the phase angle, and a time of the portion; and determines (808) an input symbol corresponding to the time, the input symbol being of a symbol type. The processing system adjusts (810) the input symbol in accordance with one of the plurality of symbol-type adjustment factors corresponding to the symbol type, and further in accordance with the amplitude excess and the phase angle, thereby bringing the amplitude below the predetermined threshold.

REFERENCES:
patent: 5659891 (1997-08-01), Hays et al.
patent: 5970058 (1999-10-01), DeClerk et al.

Affiliated with

Also associated with

Rating

Method and apparatus for peak limiting in a 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 Method and apparatus for peak limiting in a modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for peak limiting in a modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2072303