Signal processing means

Details Signal processing means Signal processing means

2007-10-30

2007-10-30

Payne, David C. (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S297000, C330S144000, C330S150000

Reexamination Certificate

active

09913368

ABSTRACT:
A non-linearity generator operates on a signal between a frequency converter and an amplifier and acts as a postdistorter for the component it follows and as a predistorter for the component it precedes, thus linearizing the overall input-output characteristic of the circuit. Cross-modulation components distorting an injected pilot signal provide a feed-back signal that is used to control the distortion applied by a non-linearity generator. The non-linearity generator can be adapted to cope with widely spaced input tones. The circuit may form part of a transmitter or a receiver.

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