Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for automated correlation of digital modulation impairment










Image Number 7 for United States Patent #7016401.

A method and apparatus for automated correlation of digital modulation impairment is described. The technique obtains soft decision data (116, 2502) and extracts signal space location information of sufficient resolution to distinguish different types of impairment to a digitally modulated signal. The technique applies an error vector magnitude mask (117, 502) and determines the signal-to-noise ratio of the digitally modulated signal. The technique applies impairment masks (118, 2504) and provides a characterization (119) of impairment affecting the digitally modulated signal (112). The technique determines a subset of the soft decision data (116, 2502) that falls within the impairment masks (118, 2505) and calculates correlation weights (2506). The technique may be used to identify, isolate, and classify different types of impairment. Given sufficient data collection, sources of impairments may be determined precisely.








 
 
  Recently Added Patents
Pattern data conversion for lithography system
Stevia formulation
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
High-frequency-link power-conversion system having direct double-frequency ripple current control and method of use
Magnetic element with top shield coupled side shield lamination
Methods of fabricating semiconductor device
Circuit design approximation
  Randomly Featured Patents
Ductile iron gear and casting process for the production thereof
System and method for dynamically enhanced color space
Heteroaromatic derivatives
Method of treating skin disorders with high-strength tretinoin
Sharpening guide for hand instruments and tools
Collection of lumber pieces from spaced stacks
Bicycle LED light
Reconfigurable toy jet-plane
Pivoting pocket
Device and method for improved power distribution for a transparent electrode