Methods and apparatus for controlling signals

Details Methods and apparatus for controlling signals Methods and apparatus for controlling signals

2007-11-13

2007-11-13

Maung, Nay (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S114300, C455S296000

Reexamination Certificate

active

10732390

ABSTRACT:
A communication and/or amplifier system according to various aspects of the present invention includes an excursion signal generator and a filter system. The excursion signal generator identifies a peak portion of a signal that exceeds a threshold, such as a magnitude threshold. The filter system filters a corresponding excursion signal having a magnitude and waveform corresponding to the portion exceeding the threshold to remove unwanted frequency components from a delayed version of the excursion signal. The filtered excursion signal may then be subtracted from the original signal to reduce the peak. In one embodiment, the communication and/or amplifier system operates in conjunction with signals having multiple channels and subchannels. The system may include a magnitude adjustment system configured to adjust magnitudes of the excursion signal subchannels according to magnitudes of the first signal subchannels. The system may also adjust the excursion signal magnitude in a time division environment according to the magnitude of the original signal in the same time slot.

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