Systems and Methods for Two Stage Tone Reduction

摘要

Systems and method relating generally to data processing, and more particularly to systems and methods for tone reduction in relation to data transmission.

主权项

1. A data processing system, the data processing system comprising:
a two stage tone reduction circuit including a first stage circuit and a second stage circuit, wherein the first stage circuit is the same as the second stage circuit, wherein the first stage circuit applies a tone reduction filtering to a data input to yield a first stage output, and wherein the second stage circuit applies the tone reduction filtering to the first stage output to yield a second stage output; and a polarity change circuit operable to change a polarity of the second stage output to yield a tone reduction output, wherein the polarity change circuit is a multiplier circuit operable to multiply the second stage output by a negative one.