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Article: Texas Inventor Develops Digital Signal Processing System
- Article from:
- US Fed News Service, Including US State News
- Article date:
- May 3, 2008
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ALEXANDRIA, Va., May 3 -- John L. Melanson of Austin, Texas, has developed a delta sigma modulator.
According to the U.S. Patent & Trademark Office: "A digital signal processing system includes a delta sigma modulator that maintains a low pass output during quantizer overload prevention conditions. In at least one embodiment, the delta sigma modulator includes a quantizer overload protected delta sigma modulator with an N-order feedback-type loop filter. A quantizer of the delta sigma modulator provides feedback to at least the first two filter stages of the loop filter."
An abstract of the invention, released by the Patent Office, said: "The loop filter includes at least N successive ...