Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2007-06-19
2007-06-19
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S350000, C375S232000, C375S233000
Reexamination Certificate
active
10002185
ABSTRACT:
A physical layer transceiver, configured for retrieving signal samples from a prescribed network medium having an undetermined length, includes a digital feedforward equalizer, configured for generating equalized signal samples from the retrieved signal samples and based on supplied equalizer settings, and an equalizer controller. The equalizer controller is configured for supplying selected equalizer settings that overcome intersymbol interference encountered by transmission of the signal samples across the prescribed network medium. The equalizer controller is configured for supplying prescribed initial equalizer settings to the digital feedforward equalizer, receiving equalized signal samples from the digital feedforward equalizer, and selectively changing the prescribed initial equalizer settings based on comparing the equalized signal samples to a prescribed equalization threshold. The equalizer controller is configured for selectively repeating the changing of the equalizer settings until the equalized signal samples reach the prescribed equalization threshold.
REFERENCES:
patent: 3292110 (1966-12-01), Becker et al.
patent: 5027369 (1991-06-01), Kuenast
patent: 5517527 (1996-05-01), Yu
patent: 6069917 (2000-05-01), Werner et al.
patent: 6097767 (2000-08-01), Lo et al.
patent: 6104236 (2000-08-01), Tsinker
patent: 6144697 (2000-11-01), Gelfand et al.
patent: 6240131 (2001-05-01), Cheng et al.
patent: 6870881 (2005-03-01), He
patent: 6876699 (2005-04-01), Chadha et al.
Vijay Madisetti & Douglas Wiliams, “The digital signal processing handbook”, 1998, section VI “Adaptive Filtering”chapters 18-24.
Ramirez Diniz, “Adaptive Filtering Algorithms and practical implementation”, 1997.
Sergio Benedetto, “Principles of Digital Transmission with wireless applications”, 1999, chapter 8 pp. 380-426.
Advanced Micro Devices , Inc.
Ghebretinsae Temesghen
Manelli Denison & Selter PLLC
Torres Juan Alberto
Turkevich Leon R.
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